CN212747633U - Crankshaft tail groove angle checking fixture - Google Patents
Crankshaft tail groove angle checking fixture Download PDFInfo
- Publication number
- CN212747633U CN212747633U CN202021497745.0U CN202021497745U CN212747633U CN 212747633 U CN212747633 U CN 212747633U CN 202021497745 U CN202021497745 U CN 202021497745U CN 212747633 U CN212747633 U CN 212747633U
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- angle
- crankshaft
- block
- tail groove
- gauge
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- 238000001514 detection method Methods 0.000 claims description 5
- 238000012031 short term test Methods 0.000 abstract description 2
- 238000005259 measurement Methods 0.000 description 6
- 238000005452 bending Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000000737 periodic effect Effects 0.000 description 1
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- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The utility model discloses an utensil is examined to bent axle tail groove angle belongs to the angle and examines a technical field. The crankshaft tail groove angle gauge comprises a base, a plurality of adjusting gauge frames, a double-layer V-shaped block, an angle measuring block, a crankshaft to be measured and an angle measuring tool; the angle measuring tool is fixedly connected to one side of the angle measuring block, which is close to the double-layer V-shaped block; the crankshaft to be measured sequentially penetrates through the adjusting gauge stand and the double-layer V-shaped block to be contacted with the angle measuring tool; the angle measuring block is fixedly connected with a measuring dial indicator, and the gauge head of the measuring dial indicator is in contact with the straight edge of the angle measuring tool; the adjusting meter frame is provided with two adjusting dial indicators which are respectively positioned on two sides of the crankshaft to be tested, and the adjusting dial indicators are fixedly connected with the adjusting dial indicators which are perpendicular to the crankshaft to be tested. This utensil is examined to bent axle tail groove angle can short-term test bent axle tail groove and the angle between the horizontal plane to can directly obtain the angle of deviation through the reading of percentage table, convenient and fast detects the precision height.
Description
Technical Field
The utility model relates to an utensil technical field is examined to the angle, in particular to utensil is examined to bent axle tail groove angle.
Background
The crankshaft is the most important component in the engine. It takes the force from the connecting rod and converts it into torque to be output by the crankshaft and drive other accessories on the engine. The crankshaft is subjected to the combined action of centrifugal force of the rotating mass, gas inertia force of periodic variation and reciprocating inertia force, so that the crankshaft is subjected to the action of bending and twisting load. Therefore, the crankshaft is required to have sufficient strength and rigidity, and the surface of the journal needs to be wear-resistant, work uniformly and balance well.
The tail end of the crankshaft is provided with a tail groove, the tail groove and a horizontal plane form a certain angle, and the precision of the angle directly influences the bending torsion load of the crankshaft.
At present, the crankshaft tail groove is usually detected by a manual angle ruler, so that the detection efficiency is low, and the detection error is easy to occur.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an utensil is examined to bent axle tail groove angle to solve the artifical bevel protractor that uses of tradition and detect, detection efficiency is lower, and the easy detection error's that appears problem.
In order to solve the technical problem, the utility model provides a crankshaft tail groove angle gauge, which comprises a base, a plurality of adjusting gauge racks, a double-layer V-shaped block, an angle measuring block, a crankshaft to be measured and an angle measuring tool;
the adjusting gauge stand, the double-layer V-shaped block and the angle measuring block are sequentially and vertically fixedly connected to the base;
the angle measuring tool is fixedly connected to one side of the angle measuring block, which is close to the double-layer V-shaped block;
the crankshaft to be measured sequentially penetrates through the adjusting gauge stand and the double-layer V-shaped block to be contacted with the angle measuring tool;
the angle measuring block is fixedly connected with a measuring dial indicator, and the gauge head of the measuring dial indicator is in contact with the straight edge of the angle measuring tool;
the adjusting meter frame is provided with two adjusting dial indicators which are respectively positioned on two sides of the crankshaft to be tested, and the adjusting dial indicators are fixedly connected with the adjusting dial indicators which are perpendicular to the crankshaft to be tested.
Optionally, the crankshaft to be measured comprises a shaft body and a bent end, the shaft body is erected on the double-layer V-shaped block, and the bent end is located between the two gauge heads of the adjustment dial indicator.
Optionally, the tail end of the crankshaft body to be tested is provided with a tail groove, the tail groove extends inwards from the tail end, and an included angle between the tail groove and the horizontal plane is 12 degrees.
Optionally, the double-layer V-shaped block is composed of a V-shaped seat, a first V-shaped head and a second V-shaped head; the first V-shaped head and the second V-shaped head are respectively positioned at two ends of the V-shaped seat.
Optionally, a V-shaped inclined plane is formed in the first V-shaped head and used for placing the crankshaft to be tested.
Optionally, the top surface of the angle gauge block is provided with a downward inclined surface, and an included angle between the inclined surface and the horizontal plane is 12 degrees; and a first threaded hole is vertically formed in the inclined plane and is used for fixedly connecting the dial indicator frame of the measuring dial indicator.
Optionally, the angle gauge block is provided with a gauge block center connecting hole and a gauge block positioning hole, a center bushing is sleeved in the gauge block center connecting hole, and a positioning bushing is sleeved in the gauge block positioning hole.
Optionally, the angle measuring tool is composed of an angle plate, a vertical fixing plate and a central connecting shaft, the central connecting shaft is vertically connected to the center of the angle plate, and the central connecting shaft penetrates through the central bushing and can rotate around an axis in the central bushing.
Optionally, a second threaded hole is formed in one end, away from the angle plate, of the central connecting shaft, and is used for connecting a rotating handle to drive the angle measuring tool to rotate.
Optionally, the angle plate is further provided with a plurality of positioning holes.
The utility model provides a crankshaft tail groove angle checking fixture, which comprises a base, a plurality of adjusting gauge racks, a double-layer V-shaped block, an angle measuring block, a crankshaft to be measured and an angle measuring tool; the adjusting gauge stand, the double-layer V-shaped block and the angle measuring block are sequentially and vertically fixedly connected to the base; the angle measuring tool is fixedly connected to one side of the angle measuring block, which is close to the double-layer V-shaped block; the crankshaft to be measured sequentially penetrates through the adjusting gauge stand and the double-layer V-shaped block to be contacted with the angle measuring tool; the angle measuring block is fixedly connected with a measuring dial indicator, and the gauge head of the measuring dial indicator is in contact with the straight edge of the angle measuring tool; the adjusting meter frame is provided with two adjusting dial indicators which are respectively positioned on two sides of the crankshaft to be tested, and the adjusting dial indicators are fixedly connected with the adjusting dial indicators which are perpendicular to the crankshaft to be tested. This utensil is examined to bent axle tail groove angle can short-term test bent axle tail groove and the angle between the horizontal plane to can directly obtain the angle of deviation through the reading of percentage table, convenient and fast detects the precision height.
Drawings
FIG. 1 is a top view of a crankshaft tail groove angle gauge provided by the present invention;
FIG. 2 is a front view of a crankshaft tail groove angle gauge provided by the present invention;
FIG. 3 is a right side view of the crankshaft tail groove angle gauge provided by the present invention;
FIG. 4 is a front view of a crankshaft to be measured with the crankshaft tail groove angle gauge provided by the present invention;
FIG. 5 is a right side view of the crankshaft to be measured of the crankshaft tail groove angle gauge provided by the present invention;
FIG. 6 is a front view of a double-layer V-shaped block of the crankshaft tail groove angle checking fixture provided by the utility model;
FIG. 7 is a right side view of a double-layer V-shaped block of the crankshaft tail groove angle checking fixture provided by the utility model;
FIG. 8 is a front view of an angle gauge block of a crankshaft tail groove angle gauge provided by the present invention;
fig. 9 is a front view of the angle measuring tool of the crankshaft tail groove angle measuring tool provided by the present invention;
fig. 10 is a right side view of the angle measuring tool for crankshaft tail groove angle checking fixture provided by the utility model.
Detailed Description
The following describes the crankshaft tail groove angle checking fixture provided by the present invention in further detail with reference to the accompanying drawings and specific embodiments. The advantages and features of the present invention will become more fully apparent from the following description and appended claims. It should be noted that the drawings are in simplified form and are not to precise scale, and are provided for convenience and clarity in order to facilitate the description of the embodiments of the present invention.
Example one
The utility model provides a crankshaft tail groove angle checking fixture, the structure of which is shown in figure 1-3, comprising a base 1, a plurality of adjusting gauge racks 2, a double-layer V-shaped block 3, an angle measuring block 4, a crankshaft 5 to be tested and an angle measuring tool 6; the adjusting gauge stand 2, the double-layer V-shaped block 3 and the angle gauge block 4 are sequentially and vertically fixedly connected to the base 1; the angle measuring tool 6 is fixedly connected to one side of the angle measuring block 4 close to the double-layer V-shaped block 3; the crankshaft 5 to be measured sequentially penetrates through the adjusting gauge stand 2 and the double-layer V-shaped block 3 to be in contact with the angle measuring tool 6; the angle measuring block 4 is fixedly connected with a measuring dial indicator 7, and the gauge head of the measuring dial indicator 7 is in contact with the straight edge of the angle measuring tool 6; the adjusting meter frame 2 is provided with two adjusting dial indicators 8 which are respectively positioned at two sides of the crankshaft 5 to be tested, and the adjusting meter frame 2 is fixedly connected with the adjusting dial indicators 8 which are vertically arranged on the crankshaft 5 to be tested.
Specifically, as shown in fig. 4 and 5, the crankshaft 5 to be measured includes a shaft body 51 and a curved end 52, the shaft body 51 is erected on the double-layer V-shaped block 3, and the curved end 52 is located between two gauge heads of the adjustment dial indicator 8; the tail end of a shaft body 51 of the crankshaft 5 to be measured is provided with a tail groove 53, the tail groove 53 extends inwards from the tail end, and an included angle between the tail groove 53 and the horizontal plane is 12 degrees.
Specifically, as shown in fig. 6 and 7, the double-layer V-shaped block 3 is composed of a V-shaped seat 31, a first V-shaped head 32 and a second V-shaped head 33; the first V-shaped head 32 and the second V-shaped head 33 are respectively positioned at two ends of the V-shaped seat 31; the first V-shaped head 32 is provided with a V-shaped inclined plane 321 for placing the crankshaft 5 to be tested; the second V-head 33 has the same structure as the first V-head 32.
Specifically, as shown in fig. 8, the top surface of the angle gauge block 4 is provided with an inclined surface 41 inclined downward, and an included angle between the inclined surface 41 and the horizontal plane is 12 degrees; a first threaded hole 42 is vertically formed in the inclined surface 41 and is used for fixedly connecting a meter frame of the measuring dial indicator 7; the angle gauge block 4 is provided with a gauge block center connecting hole 43 and a gauge block positioning hole 44, a center bushing 9 is sleeved in the gauge block center connecting hole 43, and a positioning bushing 11 is sleeved in the gauge block positioning hole 44.
Specifically, as shown in fig. 9 and 10, the angle gauge 6 is composed of an angle plate 61, a vertical fixing plate 62, and a central connecting shaft 63, the central connecting shaft 63 is vertically connected to the center of the angle plate 61, and the central connecting shaft 63 passes through the central bushing 9 and can rotate around an axis in the central bushing 9; a second threaded hole 64 is formed in one end, away from the angle plate 61, of the central connecting shaft 63 and is used for connecting a rotating handle to drive the angle measuring tool 6 to rotate; the angle plate 61 is also provided with a plurality of positioning holes 65.
Specifically, when the angle measurement is performed on the crankshaft tail groove, firstly, a central connecting shaft 63 is inserted into the central bushing 9, a positioning pin 10 sequentially passes through the positioning bushing 11 and the gauge block positioning hole 44, two points determine the relative positions of the angle gauge 6 and the angle gauge block 4, then, a gauge head of the measurement dial indicator 7 passes through the first threaded hole 42 of the angle gauge block 4 to be in contact with the straight edge of the angle plate 61, then, a standard component is placed on the double-layer V-shaped block 3, the tail groove is aligned with the angle plate 61 and pushed and fixed, and finally, the pointers of the measurement dial indicator 7 and the pointer of the adjustment dial indicator 8 are zeroed, so that the calibration process is completed. When the tail groove of the crankshaft needs to be rapidly detected, the crankshaft 5 to be detected is placed into the double-layer V-shaped block 3, the tail groove 53 is pushed to the position of the angle plate 61, and after the tail groove is fixed, whether the numerical value of the adjusting dial indicator 8 is zero or not is observed, so that whether the angle between the tail groove 53 and the horizontal plane is 12 degrees or not can be judged; when the offset angle of the tail groove of the crankshaft needs to be detected, firstly, the positioning pin 10 is pulled out, at this time, the angle measuring tool 6 can rotate around the angle measuring block 4, the crankshaft 5 to be detected is placed into the double-layer V-shaped block 3, the tail groove 53 is pushed to the position of the angle plate 61, the angle plate 61 is rotated after being fixed until the angle plate contacts with one side of the tail groove 53, at this time, the reading of the measurement dial indicator 7 is observed, and a comparison table is referred to: if the scale displays plus or minus 0.07, the offset angle is plus or minus 0.2 degrees, if the scale displays plus or minus 0.14, the offset angle is plus or minus 0.4 degrees, if the scale displays plus or minus 0.21, the offset angle is plus or minus 0.6 degrees, if the scale displays plus or minus 0.28, the offset angle is plus or minus 0.8 degrees, if the scale displays plus or minus 1.35, the offset angle is plus or minus 1.0 degree; the offset angle of the tail groove 53 can be obtained, and compared with the measurement of a traditional angle ruler, the method is convenient and fast, accurate in measurement data and suitable for mass production.
The above description is only for the preferred embodiment of the present invention and is not intended to limit the scope of the present invention, and any modification and modification made by those skilled in the art according to the above disclosure are all within the scope of the claims.
Claims (10)
1. The crankshaft tail groove angle detection tool is characterized by comprising a base (1), a plurality of adjusting gauge frames (2), a double-layer V-shaped block (3), an angle measuring block (4), a crankshaft (5) to be detected and an angle measuring tool (6);
the adjusting gauge stand (2), the double-layer V-shaped block (3) and the angle measuring block (4) are sequentially and vertically fixedly connected to the base (1);
the angle measuring tool (6) is fixedly connected to one side, close to the double-layer V-shaped block (3), of the angle measuring block (4);
the crankshaft (5) to be measured sequentially penetrates through the adjusting gauge frame (2) and the double-layer V-shaped block (3) to be contacted with the angle measuring tool (6);
the angle measuring block (4) is fixedly connected with a measuring dial indicator (7), and the gauge head of the measuring dial indicator (7) is in contact with the straight edge of the angle measuring tool (6);
the adjusting gauge frame (2) is provided with two adjusting dial indicators (8) which are respectively positioned at two sides of the crankshaft (5) to be measured, and the adjusting gauge frame (2) is fixedly connected with the adjusting dial indicators (8) which are vertically arranged on the crankshaft (5) to be measured.
2. The crankshaft tail groove angle checking fixture according to claim 1, characterized in that the crankshaft (5) to be tested comprises a shaft body (51) and a bent end (52), the shaft body (51) is erected on the double-layer V-shaped block (3), and the bent end (52) is located between two gauge heads of the adjusting dial indicator (8).
3. The crankshaft tail groove angle checking fixture according to claim 2, characterized in that a tail groove (53) is formed in the tail end of a shaft body (51) of the crankshaft (5) to be checked, the tail groove (53) extends inwards from the tail end, and an included angle between the tail groove (53) and a horizontal plane is 12 degrees.
4. The crankshaft tail groove angle checking fixture according to claim 1, characterized in that the double-layer V-shaped block (3) is composed of a V-shaped seat (31), a first V-shaped head (32) and a second V-shaped head (33); the first V-shaped head (32) and the second V-shaped head (33) are respectively positioned at two ends of the V-shaped seat (31).
5. The crankshaft tail groove angle checking fixture according to claim 4, characterized in that a V-shaped inclined plane (321) is formed in the first V-shaped head (32) and used for placing the crankshaft (5) to be tested.
6. The crankshaft tail groove angle checking fixture according to claim 1, wherein the top surface of the angle gauge block (4) is provided with an inclined surface (41) inclining downwards, and an included angle between the inclined surface (41) and a horizontal plane is 12 degrees; and a first threaded hole (42) is vertically formed in the inclined plane (41) and is used for fixedly connecting a meter frame of the measuring dial indicator (7).
7. The crankshaft tail groove angle checking fixture according to claim 6, characterized in that the angle gauge block (4) is provided with a gauge block center connecting hole (43) and a gauge block positioning hole (44), a center bushing (9) is sleeved in the gauge block center connecting hole (43), and a positioning bushing (11) is sleeved in the gauge block positioning hole (44).
8. A crankshaft tail groove angle checking fixture according to claim 7, characterized in that the angle gauge (6) consists of an angle plate (61), a vertical fixing plate (62) and a central connecting shaft (63), the central connecting shaft (63) is vertically connected to the center of the angle plate (61), and the central connecting shaft (63) passes through the central bushing (9) and can rotate around the axis in the central bushing (9).
9. The crankshaft tail groove angle checking fixture according to claim 8, characterized in that a second threaded hole (64) is formed in one end of the central connecting shaft (63) far away from the angle plate (61) and used for connecting a rotating handle to drive the angle measuring tool (6) to rotate.
10. The crankshaft tail groove angle checking fixture according to claim 8, characterized in that the angle plate (61) is further provided with a plurality of positioning holes (65).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021497745.0U CN212747633U (en) | 2020-07-24 | 2020-07-24 | Crankshaft tail groove angle checking fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021497745.0U CN212747633U (en) | 2020-07-24 | 2020-07-24 | Crankshaft tail groove angle checking fixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212747633U true CN212747633U (en) | 2021-03-19 |
Family
ID=75023252
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021497745.0U Expired - Fee Related CN212747633U (en) | 2020-07-24 | 2020-07-24 | Crankshaft tail groove angle checking fixture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212747633U (en) |
-
2020
- 2020-07-24 CN CN202021497745.0U patent/CN212747633U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210319 |