CN220583296U - Dial gauge measuring mechanism for crankshaft end face - Google Patents
Dial gauge measuring mechanism for crankshaft end face Download PDFInfo
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- CN220583296U CN220583296U CN202322331465.2U CN202322331465U CN220583296U CN 220583296 U CN220583296 U CN 220583296U CN 202322331465 U CN202322331465 U CN 202322331465U CN 220583296 U CN220583296 U CN 220583296U
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- 238000005096 rolling process Methods 0.000 claims abstract description 4
- 230000002452 interceptive effect Effects 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims description 3
- 238000005259 measurement Methods 0.000 abstract description 2
- 238000001514 detection method Methods 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 6
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000009191 jumping Effects 0.000 description 1
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- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
A dial indicator measuring mechanism for crankshaft end face is used for detecting crankshaft end face perpendicularity. The slide seat is fixed on the right side of the cushion block, the guide rail is connected with the slide seat, and the slide block is in sliding fit with the guide rail; the limiting seat is fixed on the left side of the sliding block, the base is fixed on the left side of the cushion block, the push rod is arranged in the base, and the front end bearing of the push rod is in rolling fit with the limiting seat under the elasticity of the pressure spring; the second T-shaped key is arranged in the key groove of the guide plate from below and is in sliding fit with the guide plate, and the guide plate is fixed on the sliding block; the second T-shaped key which is slidably assembled with the guide plate is slidably matched with the key slot of the lever seat, and is in threaded connection with the second T-shaped key from the upper surface of the key slot of the lever seat; the protection seat is fixed above the front side of the lever seat, the supporting screw is fixed on the protection seat, and the lever and the blind hole of the lever seat are internally provided with a second pressure spring; the lever seat is provided with a dial indicator, the needle pin is taken as the center, and the distance between the center of the measuring head and the center of the needle pin is equal to the distance between the needle head of the dial indicator and the center of the needle pin. The utility model has strong compatibility and can effectively ensure the measurement precision of the end face of the crankshaft.
Description
Technical Field
The utility model relates to the technical field of automobile part manufacturing, in particular to a dial indicator measuring mechanism for a crankshaft end face.
Background
In the primary development stage and the production test stage of the crankshaft, the perpendicularity of the big end face and the small end face of the crankshaft after the big end and the small end of the crankshaft are detected, and the crankshaft can only be conveyed to a three-dimensional chamber for detection, so that operators can carry the crankshaft back and forth between a production site and the three-dimensional chamber, the labor intensity is high, the working efficiency is low, and the collision phenomenon can occur in the transportation. However, when the crankshaft enters a mass production stage, if three-dimensional inspection is performed again, the production requirement cannot be met. Therefore, it is becoming more and more important to study a dial indicator measuring mechanism for an end face of a crankshaft for use on line.
Disclosure of Invention
In order to overcome the defects of the prior art, the utility model aims to provide a dial indicator measuring mechanism for the end face of a crankshaft, so as to realize the detection of the verticality of the end face during mass production of the crankshaft.
In order to achieve the purpose, a cushion block of the dial indicator measuring mechanism is fixed on a workbench, a sliding seat is fixed on the right side of the cushion block, a guide rail is fixedly connected with the sliding seat, a sliding block is in sliding fit with the guide rail, and the sliding block can slide back and forth on the sliding seat along the radial direction of a crankshaft through the guide rail; the limiting seat is fixed on the left side of the sliding block, the base is fixed on the left side of the cushion block, a push rod is arranged in the base, and the push rod is subjected to the elasticity of the first compression spring to enable a bearing arranged at the front end of the push rod to serve as a roller to be in rolling fit with the limiting seat; the handle is fixed on the sliding block through threaded connection, and the handle ball is fixedly connected with the handle through threads; the second T-shaped key is arranged in a key groove of the guide plate from below and is in sliding fit with the guide plate, the guide plate is aligned with the left side and the front end of the sliding block, and the second T-shaped key is fixed on the sliding block by bolts and gaskets; the lever seat is aligned with the left side of the guide plate, a T-shaped key II which is assembled with the guide plate in a sliding way is matched with a key groove on the lever seat in a sliding way, and the T-shaped key II is fixedly connected with threads of the T-shaped key II from the upper surface of the key groove of the lever seat by using a fixing bolt and a gasket; the protection seat is fixed above the front side of the lever seat by adopting four inner hexagon bolts, the upper side and the right side of the protection seat are aligned with the upper side and the right side of the lever seat, supporting screws for adjusting the swinging position of the lever are fixed on the protection seat, blind holes are reserved in the lever and the lever seat, and a second pressure spring for controlling the pressing force of a measuring head on the lever on a measuring surface is arranged in the blind holes; the lever seat is provided with a dial indicator.
Further, a first limit screw for preventing the protection seat from interfering with the outer circle of the crankshaft is arranged on the front side of the sliding block, and a second limit screw for limiting the retreating position of the sliding block is arranged on a limit block arranged on the cushion block.
Further, a through hole is drilled in the lever seat, a dial indicator sleeve is arranged in the through hole and is tightly matched with the lever seat, the front end of the dial indicator is in clearance fit with the dial indicator sleeve, the front end of the dial indicator is arranged in the dial indicator sleeve, a clamping sleeve is arranged on the outer circle of the dial indicator sleeve, and the dial indicator is fixed by screwing the clamping sleeve through bolts; the roller pin is taken as the center, and the distance between the center of the measuring head and the center of the roller pin is equal to the distance between the measuring needle head of the dial indicator and the center of the roller pin.
Further, the two ends of the limiting seat are provided with arc-shaped steps, the sliding block slides towards the measuring surface, the bearing rolls to the lower part of the step at the rear side of the limiting seat and is matched with the limiting screw at the front end of the sliding block for limiting; the sliding block slides away from the measuring surface, the bearing rolls to the lower part of the step at the front side of the limiting seat and is matched with the limiting screw II on the limiting block to limit.
Compared with the prior art, the utility model has simple structure, small occupied position of the workbench surface and large space for detecting radial runout of the crankshaft by using the dial indicator at the middle position, and is positioned at the left side and the right side of the workbench; the mold is convenient and quick to change, the requirement on precision is not high during the mold changing, and the compatibility is strong; the whole structure is stable, the guide rail precision is high, and the measuring precision of the end face of the crankshaft can be effectively ensured.
Drawings
Fig. 1 is a front view of the structure of the present utility model.
Fig. 2 is a left side view of fig. 1.
Fig. 3 is a top view of fig. 1.
In the figure: 1. a cushion block; 2. a slide block; 3. a guide plate; 4. a limiting block; 5. limiting screws II and 6 and a handle; 7. a handle ball; 8. a dial indicator; 9. a lever seat; 10. a protection seat; 11. a lever; 12. a measurement surface; 13. a first limit screw; 14. a center seat; 15. t-shaped bond I; 16. a base; 17. a bearing; 18. a push rod; 19. a limit seat; 20. t-shaped bond II; 21. a gasket; 22. a fixing bolt; 23. measuring head; 24. a guide rail; 25. a slide; 26. a first compression spring; 27. a second compression spring; 28. a support screw; 29. a roller pin; 30. a meter clamping sleeve; 31. and (5) clamping the sleeve.
Detailed Description
As shown in fig. 1, 2 and 3, a cushion block 1 of the utility model is fixed on one side of a workbench, which is close to a measuring surface 12, a slide seat 25 is fixed on the right side of the cushion block 1, a guide rail 24 is fixed on the slide seat 25, a slide block 2 is in sliding fit with the guide rail 24, and the slide block 2 can slide back and forth on the slide seat 25 along the radial direction of a crankshaft through the guide rail 24; the front side of the sliding block 2 is provided with a first limit screw 13 for preventing the protection seat 10 from interfering with the outer circle of the crankshaft, when the protection seat 10 collides with the outer circle of the crankshaft, the front end of the first limit screw 13 is contacted with a first center seat 14, so that the sliding block 2 is limited to continue to move forwards, the first center seat 14 is fixed on a workbench through a first T-shaped key 15, and the first center seats 14 at two sides of the workbench are used for propping up the crankshaft; a limiting block 4 arranged on the cushion block 1 is provided with a limiting screw II 5 for limiting the retreating position of the sliding block 2, when the detection is finished, the sliding block 2 retreats, in order to prevent the sliding block 2 from retreating too much, when the measuring head 23 leaves the proper position of the measuring surface 12, the sliding block 2 is contacted with the limiting screw II 5 on the limiting block 4, and the limiting screw II 5 can prevent the sliding block 2 from retreating too much and even falling off; the limiting seat 19 is fixed on the left side of the sliding block 2, the base 16 is fixed on the left side of the cushion block 1, the push rod 18 is arranged in the base 16, the bearing 17 arranged at the front end of the push rod 18 is matched with the limiting seat 19 in a rolling way by the elastic force of the first compression spring 26, the two ends of the limiting seat 19 are provided with arc-shaped steps, the sliding block 2 slides towards the measuring surface 12 direction of the crankshaft, the bearing 17 rolls to the lower side of the step at the rear side of the limiting seat 19 and is matched with the first limiting screw 13 at the front end of the sliding block 2 to limit, if the sliding block 2 is not acted by external force, the arc-shaped step designed by the limiting seat 19 and the limit of the first limiting screw 13 at the front end of the sliding block 2 are additionally arranged, so that the position of the sliding block 2 is unchanged, and the position of the measuring head 23 can be ensured to be unchanged; otherwise, the sliding block 2 slides away from the measuring surface 12 of the crankshaft, the bearing 17 rolls to the lower side of the front side step of the limiting seat 19 and is matched with the limiting screw II 5 on the limiting block 4 for limiting; the second limit screw 5 can limit the position of the sliding block 2 to be unchanged after the sliding block 2 is withdrawn from the detection due to the blocking of the circular arc-shaped steps of the limit seat 19, so that the position of the measuring head 23 can be ensured to be unchanged, and the measuring head 23 can be prevented from sliding to any position at will in the detection process, and interference or collision does not occur; the handle 6 is fixed on the sliding block 2 through threaded connection, the handle ball 7 is fixed on the handle 6 through threaded connection, and the handle ball 7 is held by hand during detection, so that the sliding block 2 can be conveniently controlled to slide forwards and backwards; the T-shaped key II 20 is arranged in a key groove of the guide plate 3 from below and is in sliding fit with the guide plate 3, the guide plate 3 is aligned with the left side and the front end of the sliding block 2, and the T-shaped key II is fixed on the sliding block 2 by bolts; the lever seat 9 is aligned with the left side of the guide plate 3, the T-shaped key II 20 which is assembled with the guide plate 3 in a sliding way is matched with a key groove on the lever seat 9 in a sliding way, the T-shaped key II 20 is fixedly connected with threads of the key groove of the lever seat 9 by using a fixing bolt 22 and a gasket 21, the protection seat 10 is fixed above the front side of the lever seat 9 by adopting four hexagon socket head cap bolts, and the upper side and the right side of the protection seat 10 are aligned with the upper side and the right side of the lever seat 9; the support screw 28 for adjusting the swing position of the lever 11 is fixed on the protection seat 10, blind holes are reserved on the lever 11 and the lever seat 9, and a second pressure spring 27 for controlling the pressing force of the measuring head 23 on the lever 11 on the measuring surface 12 is arranged in the blind holes; a through hole is drilled in the lever seat 9, a dial indicator sleeve 30 is assembled in the through hole, the dial indicator sleeve 30 is tightly matched with the lever seat 9, the front end of the dial indicator 8 is in clearance fit with the dial indicator sleeve 30, the front end of the dial indicator 8 is arranged in the dial indicator sleeve 30, a clamping sleeve 1 is arranged on the outer circle of the dial indicator sleeve 30, and a clamping sleeve 31 is used for fixing the dial indicator 8 through bolt tightening; the distance between the center of the measuring head 23 and the center of the roller pin 29 is equal to the distance between the measuring needle of the dial indicator 8 and the center of the roller pin 29 by taking the roller pin 29 as the center.
When the measuring head 23 measures the verticality of the measuring surface 12, the jumping is displayed on the dial indicator 8 according to the ratio of 1:1, and the read value is the verticality error of the measuring surface 12.
Claims (4)
1. A percentage table measuring mechanism for bent axle terminal surface, its characterized in that: the cushion block (1) is fixed on the workbench, the slide seat (25) is fixed on the right side of the cushion block (1), the guide rail (24) is fixedly connected with the slide seat (25), the slide block (2) is in sliding fit with the guide rail (24), and the slide block (2) can slide on the slide seat (25) along the radial direction of the crankshaft back and forth through the guide rail (24); the limiting seat (19) is fixed on the left side of the sliding block (2), the base (16) is fixed on the left side of the cushion block (1), the push rod (18) is arranged in the base (16), and the elastic force of the push rod (18) presses the first spring (26) to enable the bearing (17) arranged at the front end of the push rod to serve as a roller to be in rolling fit with the limiting seat (19); the handle (6) is fixed on the sliding block (2) through threaded connection, and the handle ball (7) is fixedly connected with the handle (6) through threads; the T-shaped key II (20) is arranged in a key groove of the guide plate (3) from below and is in sliding fit with the guide plate (3), the guide plate (3) is aligned with the left side and the front end of the sliding block (2), and the T-shaped key II is fixed on the sliding block (2) by bolts and gaskets; the lever seat (9) is aligned with the left side of the guide plate (3), the T-shaped key II (20) which is assembled with the guide plate (3) in a sliding way is matched with a key groove on the lever seat (9) in a sliding way, and the T-shaped key II (20) is fixedly connected with threads from the upper surface of the key groove of the lever seat (9) through a fixing bolt (22) and a gasket (21); the protection seat (10) is fixed above the front side of the lever seat (9) by adopting four inner hexagon bolts, the upper side and the right side of the protection seat (10) are aligned with the upper side and the right side of the lever seat (9), a support screw (28) for adjusting the swing position of the lever (11) is fixed on the protection seat (10), blind holes are reserved in the lever (11) and the lever seat (9), and a pressure spring II (27) for controlling the pressing force of a measuring head (23) on the lever (11) on a measuring surface (12) is arranged in the blind holes; the lever seat (9) is provided with a dial indicator (8).
2. The dial gauge measuring mechanism for a crankshaft end face according to claim 1, wherein: the front side of the sliding block (2) is provided with a first limit screw (13) which is used for preventing the protection seat (10) from interfering with the excircle of the crankshaft, and a second limit screw (5) which is used for limiting the retreating position of the sliding block (2) is arranged on a limit block (4) arranged on the cushion block (1).
3. The dial gauge measuring mechanism for a crankshaft end face according to claim 1, wherein: a through hole is drilled in the lever seat (9), a clamp meter sleeve (30) is arranged in the through hole, the clamp meter sleeve (30) is tightly matched with the lever seat (9), the front end of the dial indicator (8) is in clearance fit with the clamp meter sleeve (30), the front end of the dial indicator (8) is arranged in the clamp meter sleeve (30), a clamp sleeve (31) is arranged on the outer circle of the clamp meter sleeve (30), and the clamp sleeve (31) is used for fixing the dial indicator (8) through bolt tightening; the needle pin (29) is taken as the center, and the distance between the center of the measuring head (23) and the center of the needle pin (29) is equal to the distance between the measuring needle head of the dial indicator (8) and the center of the needle pin (29).
4. The dial gauge measuring mechanism for a crankshaft end face according to claim 1, wherein: the two ends of the limiting seat (19) are provided with arc-shaped steps, the sliding block (2) slides towards the measuring surface (12), the bearing (17) rolls to the lower part of the step at the rear side of the limiting seat (19) and is matched with the first limiting screw (13) at the front end of the sliding block (2) for limiting; the sliding block (2) is far away from the measuring surface (12) to slide, the bearing (17) rolls to the lower part of the front side step of the limiting seat (19) and is matched with the limiting screw II (5) on the limiting block (4) to limit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322331465.2U CN220583296U (en) | 2023-08-29 | 2023-08-29 | Dial gauge measuring mechanism for crankshaft end face |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322331465.2U CN220583296U (en) | 2023-08-29 | 2023-08-29 | Dial gauge measuring mechanism for crankshaft end face |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220583296U true CN220583296U (en) | 2024-03-12 |
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ID=90111601
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322331465.2U Active CN220583296U (en) | 2023-08-29 | 2023-08-29 | Dial gauge measuring mechanism for crankshaft end face |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220583296U (en) |
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2023
- 2023-08-29 CN CN202322331465.2U patent/CN220583296U/en active Active
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