CN218252611U - Ring piece reducing device with external diameter profiling - Google Patents
Ring piece reducing device with external diameter profiling Download PDFInfo
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- CN218252611U CN218252611U CN202222464000.XU CN202222464000U CN218252611U CN 218252611 U CN218252611 U CN 218252611U CN 202222464000 U CN202222464000 U CN 202222464000U CN 218252611 U CN218252611 U CN 218252611U
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Abstract
The utility model discloses an external diameter profile modeling's ring piece undergauge device, including undergauge ring, undergauge bucket, support ring, holding ring, profile modeling ring piece and ejecting ring. The reducing barrel is provided with a through hole in the middle, the inside of the reducing barrel is a conical surface with a large upper opening diameter and a small lower opening diameter, the reducing ring is evenly divided into at least two ring blocks, and the reducing ring is evenly divided into four ring blocks. The reducing ring is externally provided with an inclined surface which is wedged with the inner inclined surface of the reducing barrel, the minimum outer diameter of the reducing ring is equal to the minimum inner diameter of the reducing barrel, the inner diameter shape of the reducing ring is wedged with the outer diameter shape of the profiling ring piece, and the outer diameter of the support ring is smaller than 3-5mm of the minimum inner diameter of the reducing barrel. The device is used for reducing the diameter of the profile modeling ring piece, and is beneficial to the maintenance of the device.
Description
Technical Field
The utility model belongs to the technical field of the ring undergauge, concretely relates to ring undergauge device of external diameter profile modeling.
Background
The final dimensional stabilization of the loop is usually by internal diameter bulging, but in certain specific cases such as: the forging size rolling exceeds the upper limit, the inner diameter bulging reduces the performance of some special material products, customers have higher requirements on the outer diameter tolerance and the like, the outer diameter needs to be reduced to obtain the final size, as shown in fig. 1, for the ring piece with a square outer diameter and no inclination, a barrel with an inclination in the inner diameter is usually adopted for the outer diameter reduction ring, but the technical scheme of reducing the size by an outer diameter reducing method when the outer diameter of the ring piece is a profile is not given in the prior art.
SUMMERY OF THE UTILITY MODEL
In view of the above problems in the prior art, it is an object of the present invention to provide an outer diameter profiling ring reducing device.
The utility model provides a following technical scheme:
the external diameter profiling ring piece reducing device is characterized by comprising a reducing ring, a reducing barrel, a support ring, a positioning ring, a profiling ring piece and an ejection ring;
when the device works in one working state, the reducing barrel is arranged on the lower table top, the supporting ring is arranged in the reducing barrel, the positioning ring is arranged on the supporting ring, the reducing ring is arranged in the reducing barrel and is positioned between the reducing barrel and the positioning ring, the profiling ring piece is arranged in the reducing ring, and the profiling ring piece is arranged on the positioning ring;
when the work state II is worked, the supporting ring and the positioning ring are arranged on one side of the lower table-board, the supporting ring and the positioning ring are arranged outside the reducing barrel, the reducing barrel is arranged on the other side of the lower table-board, and the reducing ring and the profiling ring piece are still arranged in the reducing barrel.
When the work state III is in operation, the support ring is arranged on the profile modeling ring piece, and the reducing ring and the profile modeling ring piece are still arranged in the reducing barrel.
When the work state is four, the upper table top is arranged on the support ring, the support ring is arranged on the profile modeling ring piece, and the support ring, the reducing ring and the profile modeling ring piece are all arranged in the reducing barrel.
And in a fifth working state, the diameter-reducing barrel is clamped by the forklift, so that the diameter-reducing barrel, the diameter-reducing ring and the profile modeling ring piece are all arranged above the support ring, the ejection ring is arranged between the support ring and the profile modeling ring piece, and the diameter-reducing ring and the profile modeling ring piece are still arranged in the diameter-reducing barrel.
When the work state is six, the upper table top is arranged on the reducing barrel, so that the support ring, the ejection ring, the reducing ring and the profile modeling ring piece are all arranged in the reducing barrel, the reducing ring and the profile modeling ring piece are all arranged above the support ring, and the ejection ring is arranged between the support ring and the profile modeling ring piece.
Specifically, the middle of the reducing barrel is provided with a through hole, the inside of the reducing barrel is a conical surface with a large upper opening diameter and a small lower opening diameter, the reducing ring is evenly divided into at least two ring blocks, an inclined surface which is wedged with the inner inclined surface of the reducing barrel is arranged outside the reducing ring, the minimum outer diameter of the reducing ring is equal to the minimum inner diameter of the reducing barrel, the inner diameter of the reducing ring is wedged with the outer diameter of the profiling ring, and the outer diameter of the support ring is smaller than 3-5mm of the minimum inner diameter of the reducing barrel.
Specifically, the reducing ring is evenly divided into four ring blocks.
Specifically, the ring blocks in the reducing ring are uniformly and separately placed and simultaneously attached to the inner wall of the reducing barrel.
Specifically, the following relation formula is satisfied between the downward moving height H-H of the reducing ring and the inclination angle alpha of the inner wall of the reducing barrel:
H diameter of a pipe ＝(H-h)×tanα
H Amount of reduction ＝2×(H-h)×tanα
Wherein H Diameter of a pipe The radial moving distance of the reducing ring, H-H is the downward moving height of the reducing ring, H Amount of reduction The maximum radial reducing quantity of the profile modeling ring piece is obtained.
In particular, the friction force F and the upper table pressure F 0 The following relation formula is satisfied between the angle alpha and the inner wall inclination angle of the reducing barrel:
F＝F 1 ×cosα-fsinα (a)
f＝μ×F 1 (b)
F 0 ＝f×cosα+F 1 sinα (c)
combining equations a, b and c yields the following equations:
wherein mu is a friction coefficient, and F is a reducing ring compression force.
Specifically, α ranges from 6 ° to 9 °.
The utility model has the advantages that:
the device is a reducing technology for stabilizing the size of the profile modeling ring piece by an external diameter reducing method, wherein the range of the inclination angle alpha of the inner wall of a reducing barrel is selected to be between 6 degrees and 9 degrees, which is more beneficial to reducing the profile modeling ring piece 5; and simultaneously, the abrasion of the reducing barrel and the reducing ring can be slowed down, and the device is beneficial to maintenance.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic diagram of a prior art outer diameter reduction technique;
FIG. 2 is a schematic view of a portion of the structure of the middle ring reducing device of the present invention;
fig. 3 is a schematic structural view of the ring piece reducing device in six working states;
FIG. 4 is a schematic structural view of a reducing ring according to the present invention;
FIG. 5 is a schematic structural view showing the relationship between the downward movement height of the middle reducing ring and the inclination angle of the inner wall of the reducing barrel;
fig. 6 is a schematic structural view of the relationship between the friction force and the upper table pressure and the inclination angle of the inner wall of the reducing barrel of the present invention.
Detailed Description
As shown in fig. 2 and 3, the utility model provides an external diameter profile modeling ring piece reducing device, including reducing ring 1, reducing bucket 2, support ring 3, holding ring 4, profile modeling ring piece 5 and ejecting ring 6. The middle of the reducing barrel 2 is a through hole, and the inside of the reducing barrel 2 is a conical surface with a larger upper opening diameter and a smaller lower opening diameter, please refer to fig. 4, the reducing ring 1 is divided into at least two ring blocks, preferably, the reducing ring 1 is divided into four ring blocks. Please refer to fig. 2, the reducing ring 1 is provided with an inclined surface outside to be wedged with the inner inclined surface of the reducing barrel 2, the minimum outer diameter of the reducing ring 1 is equal to the minimum inner diameter of the reducing barrel 2, the inner diameter shape of the reducing ring 1 is wedged with the outer diameter shape of the profile modeling ring piece 5, and the outer diameter of the support ring 3 is smaller than 3-5mm of the minimum inner diameter of the reducing barrel 2.
Referring to fig. 3, when the ring piece reducing device is in an operating state, the reducing barrel 2 is placed on the lower table top, the support ring 3 is placed in the reducing barrel 2, the positioning ring 4 is placed on the support ring 3, the reducing ring 1 is placed in the reducing barrel 2, the ring blocks in the reducing ring 1 are uniformly separated and placed and are attached to the inner wall of the reducing barrel 2, the reducing ring 1 is placed between the reducing barrel 2 and the positioning ring 4, the profiling ring piece 5 is placed in the reducing ring 1, and the profiling ring piece 5 is placed on the positioning ring 4.
When the ring piece reducing device is in the working state II, the forklift clamps the reducing barrel 2 to move upwards and clamps the reducing barrel to the other side of the lower table surface, the support ring 3 and the positioning ring 4 are separated from the reducing barrel 2 under the action of gravity, the reducing ring 1 and the profile modeling ring piece 5 move downwards along the inclined plane of the reducing barrel 2, the reducing ring 1 moves towards the center simultaneously under the action of the inclined plane, and after the reducing ring 1 is close to and tightly attached to the profile modeling ring 5, the reducing ring 1 and the profile modeling ring 5 descend and stop to be in a balanced state.
When the ring piece reducing device is in a working state III, the support ring 3 is placed on the profiling ring piece 5, and the reducing ring 1 and the profiling ring piece 5 are pressed to the lower end of the reducing barrel 2 by the support ring 3.
When the ring piece reducing device is in the working state, the upper table top is pressed downwards, the support ring 3, the reducing ring 1 and the profiling ring piece 5 move downwards along the inner wall of the reducing barrel 2 under the action of pressure, the reducing ring 1 moves towards the center at the same time, the profiling ring piece 5 is pressed to shrink in diameter until the upper table top reaches the upper end face of the reducing barrel 2, and the reducing process is finished.
When the ring piece reducing device is in a working state V, the forklift clamps the reducing barrel 2 and lifts up to take out the support ring 3, the support ring 3 is placed on the lower table top, the ejection ring 6 is placed at the upper end of the support ring 3, the forklift clamps the reducing barrel 2, and meanwhile the reducing barrel 2 is placed in the middle of the upper end of the support ring 3.
When the ring piece reducing device is in a working state six, the upper table top is pressed downwards, the support ring 3 and the ejection ring 6 eject the reducing ring 1 and the profile modeling ring piece 5 out, and therefore the profile modeling ring piece 5 can be taken out conveniently.
Referring to fig. 5, the downward moving height H-H of the reducing ring 1 and the inclination angle α of the inner wall of the reducing barrel 2 satisfy the following relationship:
H diameter of a pipe ＝(H-h)×tanα
H Amount of reduction ＝2×(H-h)×tanα
Wherein H Diameter of a pipe The radial moving distance of the reducing ring 1, H-H is the downward moving height of the reducing ring 1, H Amount of reduction The maximum radial reducing quantity of the profile ring piece 5.
Please refer to fig. 6 with emphasis on the friction force F and the upper table pressure F 0 The following relation formula is satisfied between the angle alpha and the inner wall inclination angle of the reducing barrel 2:
F＝F 1 ×cosα-fsinα (a)
f＝μ×F 1 (b)
F 0 ＝f×cosα+F 1 sinα (c)
combining equations a, b and c yields the following equations:
wherein mu is a friction coefficient, and F is a pressing force of the reducing ring 1.
The higher the downward moving height of the reducing ring 1 is, the higher the height of the reducing barrel 2 is, and the height of the reducing barrel 2 can ensure that the change of the profiling ring piece 5 is more uniform and slower, thereby being more beneficial to reducing the diameter of the profiling ring piece 5; meanwhile, the friction force f is required to be as small as possible, so that the abrasion of the reducing barrel 2 and the reducing ring 1 is slowed down due to the small friction force, and the device is favorable for maintenance.
According to a formula, the larger the inclination angle alpha of the inner wall of the reducing barrel 2 is, the larger the downward moving height of the reducing ring 1 is; meanwhile, the larger the inclination angle alpha of the inner wall of the reducing barrel 2 is, the smaller the friction force f is.
In summary, through calculation and experiments, α ranges from 6 ° to 9 °, which can ensure a high stroke while avoiding rapid wear of the device due to friction rise.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. An external diameter profiling ring piece reducing device is characterized by comprising,
the device comprises a reducing ring (1), a reducing barrel (2), a support ring (3), a positioning ring (4), a profiling ring piece (5) and an ejection ring (6);
when the device works in a working state, the reducing barrel (2) is arranged on the lower table top, the support ring (3) is arranged in the reducing barrel (2), the positioning ring (4) is arranged on the support ring (3), the reducing ring (1) is arranged in the reducing barrel (2), the reducing ring (1) is positioned between the reducing barrel (2) and the positioning ring (4), the profiling ring piece (5) is arranged in the reducing ring (1), and the profiling ring piece (5) is arranged on the positioning ring (4);
when the device works in the second working state, the support ring (3) and the positioning ring (4) are arranged on one side of the lower table top, the support ring (3) and the positioning ring (4) are positioned outside the reducing barrel (2), the reducing barrel (2) is arranged on the other side of the lower table top, and the reducing ring (1) and the profiling ring piece (5) are still arranged in the reducing barrel (2);
when the working state III is in operation, the support ring (3) is arranged on the profiling ring piece (5), and the reducing ring (1) and the profiling ring piece (5) are still arranged in the reducing barrel (2);
when the working state is four, the upper table top is arranged on the support ring (3), the support ring (3) is arranged on the profiling ring piece (5), and the support ring (3), the reducing ring (1) and the profiling ring piece (5) are all arranged in the reducing barrel (2);
when the five working states are achieved, the forklift clamps the reducing barrel (2), so that the reducing barrel (2), the reducing ring (1) and the profiling ring piece (5) are all arranged above the support ring (3), the ejection ring (6) is arranged between the support ring (3) and the profiling ring piece (5), and the reducing ring (1) and the profiling ring piece (5) are still arranged in the reducing barrel (2);
when the six working states are in operation, the upper table top is arranged on the reducing barrel (2), so that the support ring (3), the ejection ring (6), the reducing ring (1) and the profile modeling ring piece (5) are all arranged in the reducing barrel (2), the reducing ring (1) and the profile modeling ring piece (5) are all arranged above the support ring (3), and the ejection ring (6) is arranged between the support ring (3) and the profile modeling ring piece (5).
2. The external diameter profiling ring piece reducing device according to claim 1, characterized in that a through hole is arranged in the middle of the reducing barrel (2), a conical surface with a larger upper opening diameter and a smaller lower opening diameter is arranged in the reducing barrel (2), the reducing ring (1) is uniformly divided into at least two ring blocks, an inclined surface which is wedged with the inner inclined surface of the reducing barrel (2) is arranged outside the reducing ring (1), the minimum external diameter of the reducing ring (1) is equal to the minimum internal diameter of the reducing barrel (2), the internal diameter shape of the reducing ring (1) is wedged with the external diameter shape of the profiling ring piece (5), and the external diameter of the support ring (3) is smaller than 3-5mm of the minimum internal diameter of the reducing barrel (2).
3. An outer diameter profiled ring diameter reducer according to claim 2 characterised in that the reducing ring (1) is evenly divided into four ring segments.
4. An outer diameter profiled ring reducer according to claim 2 or 3 characterised in that the ring segments in the reducing ring (1) are evenly spaced apart and are all in close contact with the inner wall of the reducing barrel (2).
5. An outer diameter profiling ring piece reducing device according to claim 4, characterized in that the following relation formula is satisfied between the downward moving height H-H of the reducing ring (1) and the inclination angle alpha of the inner wall of the reducing barrel (2):
H diameter of a pipe ＝(H-h)×tanα
H Amount of reduction ＝2×(H-h)×tanα
Wherein H Diameter of a pipe The radial moving distance of the reducing ring (1), H-H is the downward moving height of the reducing ring (1), H Amount of reduction The maximum radial diameter reduction of the profile modeling ring piece (5).
6. An outer diameter profiled ring diameter reduction device as claimed in claim 5 wherein the friction force F and the upper mesa pressure force F 0 The following relation formula is satisfied between the inclined angle alpha and the inner wall of the reducing barrel (2):
F＝F 1 ×cosα-fsinα (a)
f＝μ×F 1 (b)
F 0 ＝f×cosα+F 1 sinα (c)
combining equations a, b and c yields the following equations:
wherein mu is the friction coefficient, and F is the pressing force of the reducing ring (1).
7. An outer diameter contoured ring reducer according to claim 6 wherein α ranges from 6 ° to 9 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222464000.XU CN218252611U (en) | 2022-09-16 | 2022-09-16 | Ring piece reducing device with external diameter profiling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222464000.XU CN218252611U (en) | 2022-09-16 | 2022-09-16 | Ring piece reducing device with external diameter profiling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218252611U true CN218252611U (en) | 2023-01-10 |
Family
ID=84713302
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222464000.XU Active CN218252611U (en) | 2022-09-16 | 2022-09-16 | Ring piece reducing device with external diameter profiling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218252611U (en) |
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2022
- 2022-09-16 CN CN202222464000.XU patent/CN218252611U/en active Active
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