CN110757265A - Grinding method for bearing inner sleeve of acid rolling support roller - Google Patents
Grinding method for bearing inner sleeve of acid rolling support roller Download PDFInfo
- Publication number
- CN110757265A CN110757265A CN201911077776.2A CN201911077776A CN110757265A CN 110757265 A CN110757265 A CN 110757265A CN 201911077776 A CN201911077776 A CN 201911077776A CN 110757265 A CN110757265 A CN 110757265A
- Authority
- CN
- China
- Prior art keywords
- grinding
- grinding machine
- inner sleeve
- setting
- supporting
- 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.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B5/00—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor
- B24B5/02—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor involving centres or chucks for holding work
- B24B5/06—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor involving centres or chucks for holding work for grinding cylindrical surfaces internally
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B47/00—Drives or gearings; Equipment therefor
- B24B47/20—Drives or gearings; Equipment therefor relating to feed movement
Abstract
The invention discloses a method for polishing an inner sleeve of a bearing of a pickling rolling support roller, which comprises the following steps: s1, placing the supporting roll on a grinding machine, and supporting the supporting roll by using a headstock and a tailstock of the grinding machine; s2, adjusting grinding process parameters: s3, starting the grinding machine, and grinding the bearing inner sleeve positioned at the first end of the supporting roller; s4, hoisting the supporting roller, horizontally rotating for 180 degrees, and then placing on a grinding machine; and S5, grinding the bearing inner sleeve positioned at the second end of the supporting roller. The method for polishing the inner sleeve of the bearing of the acid rolling support roller realizes the grinding of the inner sleeve of the bearing of the support roller by changing the grinding process parameters and adjusting the grinding steps, and can reduce the cost for replacing the inner sleeve of the bearing of the acid rolling support roller.
Description
Technical Field
The invention belongs to the technical field of pickling supporting rollers, and particularly relates to a method for polishing an inner sleeve of a bearing of a pickling supporting roller.
Background
A universal grinding machine used in a cold rolling mill is an external grinding machine having a maximum grinding diameter of 1350mm, and is generally used for grinding large-diameter rolls such as intermediate rolls and various backup rolls.
The universal grinder is designed for grinding the roll surface of a roll, and generally cannot directly grind the position of a roll neck of a supporting roll. And the bearing inner sleeve at the roll neck part of the acid rolling supporting roll has the defects of pitting, roundness reduction and the like in the use process, can only be replaced after reaching the use influence degree, cannot realize the repair on a grinding machine, and increases the cost.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides a method for polishing an inner sleeve of a bearing of a pickling rolling support roller, and aims to reduce the cost for replacing the inner sleeve of the bearing of the pickling rolling support roller.
In order to achieve the purpose, the invention adopts the technical scheme that: the coping method of the bearing inner sleeve of the acid rolling support roller comprises the following steps:
s1, placing the supporting roll on a grinding machine, and supporting the supporting roll by using a headstock and a tailstock of the grinding machine;
s2, adjusting grinding process parameters:
s3, starting the grinding machine, and grinding the bearing inner sleeve positioned at the first end of the supporting roller;
s4, hoisting the supporting roller, horizontally rotating for 180 degrees, and then placing on a grinding machine;
and S5, grinding the bearing inner sleeve positioned at the second end of the supporting roller.
The step S3 includes:
s301, starting a grinding machine, and enabling a grinding wheel to contact a bearing inner sleeve at the first end of a supporting roller in a manual feed mode after the grinding wheel reaches a preset position;
s302, setting a feed amount parameter of the grinding machine to be 0;
s303, after 5-10 times of grinding, setting the feed amount parameter of the grinding machine to be 0.005 mm;
s304, when the grinding current change of the grinding machine reaches a set condition, setting the feed amount parameter of the grinding machine to be 0.001mm, and grinding for 5-10 passes;
s305, setting the feed amount parameter of the grinding machine to be 0, and then grinding for 5-10 passes.
In step S303, after the grinding current of the grinding machine changes to a stable wave-shaped curve, the feed parameter of the grinding machine is set to "0.001 mm", and grinding is performed for 5 to 10 passes.
The step S5 includes:
s501, starting a grinding machine, and enabling the grinding wheel to contact the bearing inner sleeve at the second end of the supporting roller in a manual feed mode after the grinding wheel reaches a preset position;
s502, setting the feed amount parameter of the grinding machine to be 0;
s503, after 5-10 times of grinding, setting the feed amount parameter of the grinding machine to be 0.005 mm;
s504, when the change of the grinding current of the grinding machine reaches a set condition, setting the feed amount parameter of the grinding machine to be 0.001mm, and then grinding for 5-10 times;
and S505, setting the feed amount parameter of the grinding machine to be 0, and then grinding for 5-10 passes.
In step S503, after the grinding current of the grinding machine changes to a stable wave-shaped curve, the feed parameter of the grinding machine is set to "0.001 mm", and grinding is performed for 5 to 10 passes.
The method for polishing the inner sleeve of the bearing of the acid rolling support roller realizes the grinding of the inner sleeve of the bearing of the support roller by changing the grinding process parameters and adjusting the grinding steps, and can reduce the cost for replacing the inner sleeve of the bearing of the acid rolling support roller.
Drawings
The description includes the following figures, the contents shown are respectively:
FIG. 1 is a process flow chart of the coping method of the bearing inner sleeve of the acid-rolling supporting roller.
Detailed Description
The following detailed description of the embodiments of the present invention will be given with reference to the accompanying drawings for a purpose of helping those skilled in the art to more fully, accurately and deeply understand the concept and technical solution of the present invention and to facilitate its implementation.
As shown in fig. 1, the invention provides a method for coping an inner sleeve of a bearing of a pickling roller, which comprises the following steps:
s1, placing the supporting roll on a grinding machine, and supporting the supporting roll by using a headstock and a tailstock of the grinding machine;
s2, adjusting grinding process parameters:
s3, starting the grinding machine, and grinding the bearing inner sleeve positioned at the first end of the supporting roller;
s4, hoisting the supporting roller, horizontally rotating for 180 degrees, and then placing on a grinding machine;
and S5, grinding the bearing inner sleeve positioned at the second end of the supporting roller.
Specifically, in step S1, the backup roll is supported by the headstock and tailstock of the grinding machine so as to be horizontal, and the backup roll has one bearing inner sleeve at each end.
In the above step S2, the grinding process parameters of the grinding machine are adjusted, the grinding start position is set to "3395", the grinding end position is set to "4040", the maximum roll diameter is set to "877.68 mm", the minimum roll diameter is set to "877.65 mm", and the other parameters are set to "0".
The step S3 includes:
s301, starting a grinding machine, and enabling a grinding wheel to contact a bearing inner sleeve at the first end of a supporting roller in a manual feed mode after the grinding wheel reaches a preset position;
s302, setting a feed amount parameter of the grinding machine to be 0;
s303, after 5-10 times of grinding, setting the feed amount parameter of the grinding machine to be 0.005 mm;
s304, when the grinding current change of the grinding machine reaches a set condition, setting the feed amount parameter of the grinding machine to be 0.001mm, and grinding for 5-10 passes;
s305, setting the feed amount parameter of the grinding machine to be 0, and then grinding for 5-10 passes.
In step S303, after the grinding current of the grinding machine changes to a stable wave-shaped curve, the feed parameter of the grinding machine is set to "0.001 mm", and grinding is performed for 5 to 10 passes.
In step S4, after the grinding of the inner bearing sleeve at the first end of the supporting roller is completed, the supporting roller is lifted upwards, and then the supporting roller is placed on the grinding machine after reversing the head and the tail of the supporting roller, that is, the supporting roller is placed on the grinding machine after horizontally rotating 180 °, the supporting roller is supported by the headstock and the tailstock of the grinding machine, and then the inner bearing sleeve at the second end of the supporting roller is ground, and the first end and the second end of the supporting roller are both ends of the supporting roller in the length direction.
The step S5 includes:
s501, starting a grinding machine, and enabling the grinding wheel to contact the bearing inner sleeve at the second end of the supporting roller in a manual feed mode after the grinding wheel reaches a preset position;
s502, setting the feed amount parameter of the grinding machine to be 0;
s503, after 5-10 times of grinding, setting the feed amount parameter of the grinding machine to be 0.005 mm;
s504, when the change of the grinding current of the grinding machine reaches a set condition, setting the feed amount parameter of the grinding machine to be 0.001mm, and then grinding for 5-10 times;
and S505, setting the feed amount parameter of the grinding machine to be 0, and then grinding for 5-10 passes.
In step S503, after the grinding current of the grinding machine changes to a stable wave-shaped curve, the feed parameter of the grinding machine is set to "0.001 mm", and grinding is performed for 5 to 10 passes.
The invention is described above with reference to the accompanying drawings. It is to be understood that the specific implementations of the invention are not limited in this respect. Various insubstantial improvements are made by adopting the method conception and the technical scheme of the invention; the present invention is not limited to the above embodiments, and can be modified in various ways.
Claims (5)
1. The method for polishing the inner sleeve of the bearing of the acid rolling support roller is characterized by comprising the following steps of:
s1, placing the supporting roll on a grinding machine, and supporting the supporting roll by using a headstock and a tailstock of the grinding machine;
s2, adjusting grinding process parameters:
s3, starting the grinding machine, and grinding the bearing inner sleeve positioned at the first end of the supporting roller;
s4, hoisting the supporting roller, horizontally rotating for 180 degrees, and then placing on a grinding machine;
and S5, grinding the bearing inner sleeve positioned at the second end of the supporting roller.
2. The method for thinning an inner sleeve of a sour rolling back-up roller bearing according to claim 1, wherein the step S3 comprises:
s301, starting a grinding machine, and enabling a grinding wheel to contact a bearing inner sleeve at the first end of a supporting roller in a manual feed mode after the grinding wheel reaches a preset position;
s302, setting a feed amount parameter of the grinding machine to be 0;
s303, after 5-10 times of grinding, setting the feed amount parameter of the grinding machine to be 0.005 mm;
s304, when the grinding current change of the grinding machine reaches a set condition, setting the feed amount parameter of the grinding machine to be 0.001mm, and grinding for 5-10 passes;
s305, setting the feed amount parameter of the grinding machine to be 0, and then grinding for 5-10 passes.
3. The method for grinding an inner sleeve of a sour rolling back-up roller bearing according to claim 2, wherein in step S303, after the grinding current of the grinding machine changes to a stable wave-shaped curve, the feed parameter of the grinding machine is set to "0.001 mm", and then grinding is performed for 5 to 10 passes.
4. The method for reconditioning an inner sleeve of a sour roller bearing according to any one of claims 1 to 3, wherein said step S5 comprises:
s501, starting a grinding machine, and enabling the grinding wheel to contact the bearing inner sleeve at the second end of the supporting roller in a manual feed mode after the grinding wheel reaches a preset position;
s502, setting the feed amount parameter of the grinding machine to be 0;
s503, after 5-10 times of grinding, setting the feed amount parameter of the grinding machine to be 0.005 mm;
s504, when the change of the grinding current of the grinding machine reaches a set condition, setting the feed amount parameter of the grinding machine to be 0.001mm, and then grinding for 5-10 times;
and S505, setting the feed amount parameter of the grinding machine to be 0, and then grinding for 5-10 passes.
5. The method for grinding an inner sleeve of a sour rolling back-up roller bearing according to claim 4, wherein in step S503, after the grinding current of the grinding machine changes to a stable wave curve, the feed parameter of the grinding machine is set to be 0.001mm, and then 5-10 passes of grinding are performed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911077776.2A CN110757265A (en) | 2019-11-06 | 2019-11-06 | Grinding method for bearing inner sleeve of acid rolling support roller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911077776.2A CN110757265A (en) | 2019-11-06 | 2019-11-06 | Grinding method for bearing inner sleeve of acid rolling support roller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110757265A true CN110757265A (en) | 2020-02-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911077776.2A Pending CN110757265A (en) | 2019-11-06 | 2019-11-06 | Grinding method for bearing inner sleeve of acid rolling support roller |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201320708Y (en) * | 2008-12-26 | 2009-10-07 | 昆山华辰机器制造有限公司 | Supporting roll with box grinding device of full-automatic numerical control roll grinder |
| CN102554721A (en) * | 2012-02-14 | 2012-07-11 | 唐山建龙实业有限公司 | Technology for polishing inner ring of back-up roll bearing of rolling mill |
| CN105729257A (en) * | 2014-12-10 | 2016-07-06 | 上海宝钢工业技术服务有限公司 | Roundness tolerance repairing method for roller shoulder rings of finish-rolled work roller |
| JP2017109258A (en) * | 2015-12-15 | 2017-06-22 | 株式会社ジェイテクト | Table traverse type grinder |
| CN107953147A (en) * | 2017-11-06 | 2018-04-24 | 天津重型装备工程研究有限公司 | A kind of Mill precise grinding process |
| CN110340149A (en) * | 2019-07-19 | 2019-10-18 | 首钢京唐钢铁联合有限责任公司 | Roll and its method for grinding |
-
2019
- 2019-11-06 CN CN201911077776.2A patent/CN110757265A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201320708Y (en) * | 2008-12-26 | 2009-10-07 | 昆山华辰机器制造有限公司 | Supporting roll with box grinding device of full-automatic numerical control roll grinder |
| CN102554721A (en) * | 2012-02-14 | 2012-07-11 | 唐山建龙实业有限公司 | Technology for polishing inner ring of back-up roll bearing of rolling mill |
| CN105729257A (en) * | 2014-12-10 | 2016-07-06 | 上海宝钢工业技术服务有限公司 | Roundness tolerance repairing method for roller shoulder rings of finish-rolled work roller |
| JP2017109258A (en) * | 2015-12-15 | 2017-06-22 | 株式会社ジェイテクト | Table traverse type grinder |
| CN107953147A (en) * | 2017-11-06 | 2018-04-24 | 天津重型装备工程研究有限公司 | A kind of Mill precise grinding process |
| CN110340149A (en) * | 2019-07-19 | 2019-10-18 | 首钢京唐钢铁联合有限责任公司 | Roll and its method for grinding |
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Application publication date: 20200207 |
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