CN112893561A - Top cover bending process convenient to install - Google Patents
Top cover bending process convenient to install Download PDFInfo
- Publication number
- CN112893561A CN112893561A CN202110054092.1A CN202110054092A CN112893561A CN 112893561 A CN112893561 A CN 112893561A CN 202110054092 A CN202110054092 A CN 202110054092A CN 112893561 A CN112893561 A CN 112893561A
- Authority
- CN
- China
- Prior art keywords
- bending
- top cover
- keeping
- heating
- effect
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000005452 bending Methods 0.000 title claims abstract description 83
- 238000000034 method Methods 0.000 title claims abstract description 20
- 239000000463 material Substances 0.000 claims abstract description 51
- 238000010438 heat treatment Methods 0.000 claims abstract description 19
- 230000000694 effects Effects 0.000 claims abstract description 16
- 238000001816 cooling Methods 0.000 claims abstract description 15
- 239000013078 crystal Substances 0.000 claims abstract description 7
- 238000009825 accumulation Methods 0.000 claims description 4
- 239000007921 spray Substances 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 230000009286 beneficial effect Effects 0.000 claims description 2
- 230000007547 defect Effects 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D11/00—Bending not restricted to forms of material mentioned in only one of groups B21D5/00, B21D7/00, B21D9/00; Bending not provided for in groups B21D5/00 - B21D9/00; Twisting
- B21D11/10—Bending specially adapted to produce specific articles, e.g. leaf springs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D35/00—Combined processes according to or processes combined with methods covered by groups B21D1/00 - B21D31/00
- B21D35/002—Processes combined with methods covered by groups B21D1/00 - B21D31/00
- B21D35/008—Processes combined with methods covered by groups B21D1/00 - B21D31/00 involving vibration, e.g. ultrasonic
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/16—Heating or cooling
Abstract
The invention discloses a top cover bending process convenient to install, relates to the technical field of top cover bending, and provides the following scheme. Aiming at the problem of large rebound angle after bending common materials, the following scheme is provided, and the top cover bending process convenient to mount comprises the following steps: selecting a material, and inspecting the surface of the material to ensure that the material has no crack, burr, bend and the like; step two, placing the blank processed in the step one into a bending machine for deepening bending, controlling the bending time to be 5-10 seconds, and keeping for 25-30min after bending; and step three, heating for the first time, and keeping the bending effect of the bending piece in the step two unchanged. The invention can achieve the effect of reducing the internal stress of the material by bending the material and heating and naturally cooling the material, and simultaneously adopts ultrasonic waves to vibrate the crystal in the material at high frequency, thereby achieving the effect of further reducing the internal stress of the material and reducing the rebound angle of the blank piece to the minimum.
Description
Technical Field
The invention relates to the field of agricultural planting of top cover bending technologies, in particular to a top cover bending process convenient to install.
Background
Bending, namely, a metal plate is subjected to elastic deformation under the pressure of an upper die or a lower die of a bending machine, then enters plastic deformation, and at the beginning stage of plastic bending, the plate is freely bent, along with the pressure applied to the plate by the upper die or the lower die, the plate is gradually close to the inner surface of a V-shaped groove of the lower die, the curvature radius and the bending force arm are gradually reduced, the pressing is continued until the stroke is ended, so that the upper die and the lower die are in full contact with each other in a three-point close manner, and at the moment, the V-shaped bending is finished, namely the.
In specific part production process, because the part after bending because the inside side residual stress effect of material makes very easily after bending produces some resilience, in some parts that the precision requirement is higher, this is obviously not feasible, in order to reduce the resilience angle of the piece of bending, I have proposed a top cap bending process easy to assemble.
Disclosure of Invention
The invention aims to solve the defects in the prior art, and provides a top cover bending process convenient to mount.
In order to achieve the purpose, the invention adopts the following technical scheme:
a top cover bending process convenient to mount comprises the following steps:
s1, selecting the material, and inspecting the surface of the material to ensure that the material has no crack, burr, bend and the like;
s2, placing the blank processed in the step one into a bending machine for deepening bending, controlling the bending time to be 5-10 seconds, and keeping bending for 25-30min after bending;
s3, heating for the first time, keeping the bending effect of the bending piece in the step II unchanged, heating the top cover to 650 ℃ by using a high-temperature spray gun, keeping for 1-2min, and naturally cooling for 20-25 min;
s4, ultrasonic vibration, in the step II, the internal crystal of the top cover in the bending state is vibrated with high frequency by ultrasonic waves;
s5, secondary heating, namely heating the bent piece in the fourth step to 760-780 ℃, and keeping for 2-3 min;
and S6, quickly taking out the bent piece which is secondarily heated in the step five, and immediately cooling the bent piece in the water temperature of 20-40 ℃.
Preferably, in the process of bending the angle in the second step, stress accumulation of the material can be reduced, and bending resilience can be compensated by deepening bending.
Preferably, the bent top cover is heated to 650 ℃ in the third step, kept for 2-3min and naturally cooled, so that the stress generated by bending in the material is reduced.
Preferably, in the fourth step, the material inside the bent top cover is subjected to high-frequency vibration by using ultrasonic waves, so that the stress inside the material can be further degraded, and the rebound of the material can be reduced.
Preferably, the cooling in the sixth step can improve the toughness, wear resistance and strength of the top cover.
The invention can achieve the effect of reducing the internal stress of the material by bending the material, heating the material and naturally cooling the material, and simultaneously adopts ultrasonic waves to vibrate the crystal in the material at high frequency, thereby achieving the effect of further reducing the internal stress of the material and reducing the rebound angle of the blank piece to the minimum.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments.
Example one
A top cover bending process convenient to mount comprises the following steps:
s1, selecting the material, and inspecting the surface of the material to ensure that the material has no crack, burr, bend and the like;
s2, placing the blank processed in the step one into a bending machine for deepening bending, controlling the bending time to be 5-10 seconds, and keeping bending for 25-30min after bending;
s3, heating for the first time, keeping the bending effect of the bent piece in the second step unchanged, heating the top cover to 400 ℃ by using a high-temperature spray gun, keeping the temperature for 1-2min, and naturally cooling for 20-25 min;
s4, ultrasonic vibration, in the step II, the internal crystal of the top cover in the bending state is vibrated with high frequency by ultrasonic waves;
s5, secondary heating, namely heating the bent piece in the fourth step to 760-780 ℃, and keeping for 2-3 min;
and S6, quickly taking out the bent piece which is secondarily heated in the step five, and immediately cooling the bent piece in the water temperature of 20-40 ℃.
In this embodiment, in the process of bending at an angle in the second step, stress accumulation of materials can be reduced, and bending deepening can compensate bending resilience.
In the embodiment, in the third step, the bent top cover is heated to 400 ℃, kept for 2-3min and naturally cooled, so that the stress generated by bending in the material is reduced.
In this embodiment, in step four, the material inside the bent top cover is vibrated at a high frequency by using ultrasonic waves, so that the stress inside the material can be further degraded, and the rebound of the material can be reduced.
In this embodiment, the cooling in step six can play the effect of improving the toughness of top cap, wear-resisting shape and the intensity of top cap.
Example two
A top cover bending process convenient to mount comprises the following steps:
s1, selecting the material, and inspecting the surface of the material to ensure that the material has no crack, burr, bend and the like;
s2, placing the blank processed in the step one into a bending machine for deepening bending, controlling the bending time to be 5-10 seconds, and keeping bending for 25-30min after bending;
s3, heating for the first time, keeping the bending effect of the bent piece in the second step unchanged, heating the top cover to 500 ℃ by using a high-temperature spray gun, keeping the temperature for 1-2min, and naturally cooling for 20-25 min;
s4, ultrasonic vibration, in the step II, the internal crystal of the top cover in the bending state is vibrated with high frequency by ultrasonic waves;
s5, secondary heating, namely heating the bent piece in the fourth step to 760-780 ℃, and keeping for 2-3 min;
and S6, quickly taking out the bent piece which is secondarily heated in the step five, and immediately cooling the bent piece in the water temperature of 20-40 ℃.
In this embodiment, in the process of bending at an angle in the second step, stress accumulation of materials can be reduced, and bending deepening can compensate bending resilience.
In the embodiment, in the third step, the bent top cover is heated to 500 ℃, kept for 2-3min and naturally cooled, so that the stress generated by bending in the material is reduced.
In this embodiment, in step four, the material inside the bent top cover is vibrated at a high frequency by using ultrasonic waves, so that the stress inside the material can be further degraded, and the rebound of the material can be reduced.
In this embodiment, the cooling in step six can play the effect of improving the toughness of top cap, wear-resisting shape and the intensity of top cap.
According to the invention, the top cover is kept bent, and is heated to 400 ℃ for destressing through ultrasonic waves, so that the finally obtained rebound angle of the top cover is larger than that of the top cover heated to 500 ℃ for destressing through ultrasonic waves, and the top cover is heated to 500 ℃ for destressing through ultrasonic waves, thereby being beneficial to improving the processing accuracy.
When bending the material, heat the material to natural cooling can play the effect that reduces material internal stress, adopts the ultrasonic wave to make the inside crystal of material carry out high frequency vibration simultaneously, plays the effect that further reduces the internal stress of material, makes blank's resilience angle reduce to the minimum.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (5)
1. The top cover bending process convenient to mount is characterized by comprising the following steps of:
s1, selecting the material, checking the surface of the material,
s2, placing the blank processed in the step one into a bending machine for deepening bending, controlling the bending time to be 5-10 seconds, and keeping bending for 25-30min after bending;
s3, heating for the first time, keeping the bending effect of the bending piece in the step II unchanged, heating the top cover to 650 ℃ by using a high-temperature spray gun, keeping for 1-2min, and naturally cooling for 20-25 min;
s4, ultrasonic vibration, in the step II, the internal crystal of the top cover in the bending state is vibrated with high frequency by ultrasonic waves;
s5, secondary heating, namely heating the bent piece in the fourth step to 760-780 ℃, and keeping for 2-3 min;
and S6, quickly taking out the bent piece which is secondarily heated in the step five, and immediately cooling the bent piece in the water temperature of 20-40 ℃ to obtain the bent top cover.
2. The top cover bending process convenient to mount according to claim 1, wherein in the angle bending process in the second step, stress accumulation in the top cover bending process can be reduced, and the effect that bending resilience can be compensated by deepening bending can be achieved.
3. The process for bending the top cover convenient to install as claimed in claim 1, wherein the top cover after bending in the third step is heated to 450-650 ℃, kept for 2-3min and naturally cooled, which is beneficial to reducing the stress generated by bending inside the material.
4. The easy-to-install top cover bending process according to claim 1, wherein in the fourth step, the material inside the bent top cover is subjected to high-frequency vibration by using ultrasonic waves, so that the stress inside the material can be further degraded, and the rebound of the material can be reduced.
5. The easy-to-install top cover bending process according to claim 1, wherein the cooling in the sixth step has the effect of improving the toughness, the wear resistance and the strength of the top cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110054092.1A CN112893561A (en) | 2021-01-15 | 2021-01-15 | Top cover bending process convenient to install |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110054092.1A CN112893561A (en) | 2021-01-15 | 2021-01-15 | Top cover bending process convenient to install |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112893561A true CN112893561A (en) | 2021-06-04 |
Family
ID=76113406
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110054092.1A Pending CN112893561A (en) | 2021-01-15 | 2021-01-15 | Top cover bending process convenient to install |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112893561A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115194012A (en) * | 2022-07-15 | 2022-10-18 | 惠州市锦龙精密真空热处理有限公司 | Heat treatment process and equipment for steel mesh of loudspeaker |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6415639B1 (en) * | 1997-07-02 | 2002-07-09 | Trumpf Maschinen Austria Gmbh & Co. Kg | Laser-assisted bending method |
| CN104889192A (en) * | 2015-05-28 | 2015-09-09 | 南京皓威机械有限公司 | Plate bending machine |
| CN108555132A (en) * | 2018-05-18 | 2018-09-21 | 沈阳航空航天大学 | The method and device of ultrasonic vibration assistant metal sheet material forming under thermal environment |
| CN109182717A (en) * | 2018-08-29 | 2019-01-11 | 荆州市江汉众力实业有限公司 | A kind of aero-engine bracket pipe fitting bends heat treatment process |
| CN111097817A (en) * | 2019-11-28 | 2020-05-05 | 北京航星机器制造有限公司 | Laser-assisted heating plate bending device and method |
-
2021
- 2021-01-15 CN CN202110054092.1A patent/CN112893561A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6415639B1 (en) * | 1997-07-02 | 2002-07-09 | Trumpf Maschinen Austria Gmbh & Co. Kg | Laser-assisted bending method |
| CN104889192A (en) * | 2015-05-28 | 2015-09-09 | 南京皓威机械有限公司 | Plate bending machine |
| CN108555132A (en) * | 2018-05-18 | 2018-09-21 | 沈阳航空航天大学 | The method and device of ultrasonic vibration assistant metal sheet material forming under thermal environment |
| CN109182717A (en) * | 2018-08-29 | 2019-01-11 | 荆州市江汉众力实业有限公司 | A kind of aero-engine bracket pipe fitting bends heat treatment process |
| CN111097817A (en) * | 2019-11-28 | 2020-05-05 | 北京航星机器制造有限公司 | Laser-assisted heating plate bending device and method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115194012A (en) * | 2022-07-15 | 2022-10-18 | 惠州市锦龙精密真空热处理有限公司 | Heat treatment process and equipment for steel mesh of loudspeaker |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| WD01 | Invention patent application deemed withdrawn after publication | ||
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Application publication date: 20210604 |