CN112171382A - Grinding method of disc shear for shearing stainless steel precise foil - Google Patents
Grinding method of disc shear for shearing stainless steel precise foil Download PDFInfo
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- CN112171382A CN112171382A CN202010895135.4A CN202010895135A CN112171382A CN 112171382 A CN112171382 A CN 112171382A CN 202010895135 A CN202010895135 A CN 202010895135A CN 112171382 A CN112171382 A CN 112171382A
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- 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
- B24B1/00—Processes of grinding or polishing; Use of auxiliary equipment in connection with such processes
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Abstract
The invention provides a grinding method of a disc shear for shearing stainless steel precision foil, which comprises the following steps: replacing a central frame supporting tile of a grinding machine for the roller with a thimble device, and adjusting the height of the centre line of the thimble to be superposed with the position of the grinding centre line; a group of disc shears with consistent outer diameters are stacked and sleeved on a grinding circular shaft, flange disc clamping devices are fixed on two sides of the grinding circular shaft, and the flange disc clamping devices are tightly propped by ejector pins and fixed on a grinding machine; determining the total grinding amount of the disc shear; carrying out disc shear coarse grinding by using a 60-80-mesh green carbon grinding wheel, wherein the continuous feed amount of the grinding wheel is controlled within 0.05 mm/min; and (3) carrying out fine grinding and polishing by using a 180-240-mesh green carbon grinding wheel, controlling the continuous feed amount of the grinding wheel within 0.005mm/min, and carrying out fine grinding and polishing twice in a manner of reducing the grinding pressure, wherein the grinding pressure of the first fine grinding and polishing is controlled to be 0.5-0.6 Kpa, and the grinding pressure of the second fine grinding and polishing is controlled to be 0.2-0.3 Kpa. The grinding method ensures the stability of the shearing width and the shearing precision in the process of processing the stainless steel precision foil.
Description
Technical Field
The invention belongs to the technical field of stainless steel production, and particularly relates to a grinding method of a disc shear for shearing stainless steel precision foil.
Background
The stainless steel precision foil is a technologically intensive high-end new material, and has excellent chemical properties, mechanical properties, thickness precision and surface characteristics. The stainless steel precision foil is generally measured by the thickness of microns, and due to the precision characteristic, the stainless steel precision foil is widely applied to the strut industries of aerospace, war industry, automobiles, petrochemical industry, consumer electronics and the like. The product has high quality requirement, great process control difficulty and good mechanical property. With the increasing requirements on products, the requirements on the characteristics of the stainless steel strip surface such as roughness, glossiness, rolling texture and the like are more precise and strict, the existing ultrathin precise stainless steel foil production is still in a normalized production, and the shearing production of the stainless steel precise foil is a bottleneck of the products.
In the shearing production process of the stainless steel precision foil, the defects of poor edge flatness, large burrs and the like of the stainless steel precision foil often occur due to insufficient grinding precision of the disc shear, so that higher requirements are provided for the grinding maintenance of the disc shear for shearing the stainless steel precision foil.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, and provides a grinding method of a stainless steel precision foil shearing disc shear, which aims to solve the quality problems of serious knife back mark, large burrs after shearing and the like of the stainless steel precision foil shearing disc shear caused by inconsistent outer diameters of the stainless steel precision foil shearing disc shear and ensure stable shearing width and shearing precision in the stainless steel precision foil machining process.
The grinding method of the disc shear for shearing the stainless steel precision foil comprises the following steps:
replacing a central frame supporting tile of a grinding machine for the roller with a thimble device, and adjusting the height of the centre line of the thimble to be superposed with the position of the grinding centre line;
according to the thickness of a circle shear to be ground, a group of circle shears with consistent outer diameters are overlapped and sleeved on a grinding circular shaft, flange plate clamping devices are fixed on two sides of the grinding circular shaft, the group of circle shears are clamped between the flange plate clamping devices on the two sides, and then the flange plate clamping devices are tightly pressed by ejector pins to be fixed on a grinding machine;
determining the total grinding quantity of the disc shear according to the minimum outer diameter requirement and the surface abrasion condition of the disc shear, wherein the maximum total grinding quantity is 0.2 mm;
carrying out rough grinding on a disc shear by using a 60-80-mesh green carbon grinding wheel, grinding the grinding wheel from the middle position of the disc shear, controlling the linear speed of the grinding wheel to be 13-15 m/s, controlling the rotating speed of the disc shear to be 28-32 r/min, controlling the transverse moving speed of the disc shear to be 600-800 mm/min, controlling the continuous feed amount of the grinding wheel to be within 0.05mm/min, and controlling the lower grinding amount to be less than the total grinding amount;
the method comprises the steps of replacing a green carbon grinding wheel with 60-80 meshes with a green carbon grinding wheel with 180-240 meshes to perform fine grinding polishing on a disc shear, controlling the linear speed of a grinding wheel to be 13-15 m/s, controlling the rotating speed of the disc shear to be 28-32 r/min, controlling the transverse moving speed of the disc shear to be 500-600 mm/min, controlling the continuous feed amount of the grinding wheel to be within 0.005mm/min, performing fine grinding polishing on the disc shear twice in a descending grinding pressure mode, and controlling the surface roughness of the surface of the disc shear to be 0.10-0.15 mu m, wherein the grinding pressure of the first fine grinding polishing is controlled to be 0.5-0.6 Kpa, and the grinding pressure of the second fine grinding polishing is controlled to be 0.2-0.3 Kpa.
Preferably, in the above grinding method of the stainless steel precision foil shearing disc shear, the maximum tolerance of the outer diameters of the group of disc shears is controlled to ± 50 um.
Preferably, in the grinding method of the stainless steel precision foil shearing disc shear, the number of the group of disc shears is 30-50, and the length of the grinding circular shaft is 320mm or 450 mm.
As a specific embodiment, in the grinding method of the stainless steel precision foil shearing disc shear, the total grinding amount of the disc shear is 0.05 mm; the rough grinding of the disc shear is carried out by using an 80-mesh green carbon grinding wheel, the linear speed of the grinding wheel is controlled at 13m/s, the rotating speed of the disc shear is controlled at 32r/min, the transverse moving speed of the disc shear is controlled at 800mm/min, the continuous feed amount of the grinding wheel is controlled at 0.02mm/min, and the lower grinding amount is controlled to be less than 0.05 mm; the fine grinding and polishing of the disc shear are carried out by using a 180-mesh green carbon grinding wheel, the linear speed of the grinding wheel is controlled at 13m/s, the rotating speed of the disc shear is controlled at 28r/min, the transverse moving speed of the disc shear is controlled at 600mm/min, the continuous feed amount of the grinding wheel is controlled within 0.002mm/min, the grinding pressure of the first fine grinding and polishing is controlled at 0.6Kpa, and the grinding pressure of the second fine grinding and polishing is controlled at 0.2 Kpa.
The grinding method of the stainless steel precision foil shearing disc shear adopts the grinding machine for the roller, controls the grinding parameters, and realizes the grinding requirement of the grinding machine for the roller on the stainless steel precision foil shearing disc shear through small feed amount, slow grinding and modes of different grinding wheels, thereby improving the trimming and grinding precision of the disc shear, ensuring the consistent outer diameter of the disc shear and the sharp cutting edge, leading the cutting edge to be smooth and have no defect when the stainless steel precision foil is sheared, ensuring the stability of the shearing width and the shearing precision in the stainless steel precision foil processing process, and completely meeting the requirement of the stainless steel precision foil on the shearing quality, thereby meeting the high-grade industrial high-quality requirement of the stainless steel precision foil.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the specific embodiments and examples of the present invention. It is apparent that the embodiments and examples described are only a part of the embodiments and examples of the present invention, and not all of the embodiments and examples. All other embodiments and examples, which can be obtained by a person skilled in the art without inventive step, are within the scope of protection of the present invention.
The grinding method of the disc shear for shearing the stainless steel precision foil comprises the following steps:
replacing a central frame supporting tile of a grinding machine for the roller with a thimble device, and adjusting the height of the centre line of the thimble to be superposed with the position of the grinding centre line;
according to the thickness of the disc shears to be ground, a group of disc shears with a plurality of, for example, 30-50, identical outer diameters are overlapped and sleeved on a grinding circular shaft with the length of 320mm or 450mm, wherein the maximum tolerance of the outer diameters of the disc shears is controlled to be +/-50 mu m;
fixing flange plate clamping devices on two sides of the grinding circular shaft, clamping the group of circle shears between the flange plate clamping devices on the two sides, and then tightly pushing the flange plate clamping devices through ejector pins to fix the flange plate clamping devices on a grinding machine;
determining the total grinding quantity according to the minimum outer diameter requirement and the surface abrasion condition of the unit disc shear, wherein the maximum total grinding quantity is 0.2mm in principle;
firstly, carrying out rough grinding on a disc shear by using a green carbon grinding wheel of 60-80 meshes, grinding the grinding wheel from the middle position of the disc shear, controlling the linear speed of the grinding wheel to be 13-15 m/s, controlling the rotating speed of the disc shear to be 28-32 r/min, controlling the transverse moving speed of the disc shear to be 600-800 mm/min, controlling the continuous feed amount of the grinding wheel to be within 0.05mm/min, and controlling the lower grinding amount to be less than the total grinding amount;
and replacing a green carbon grinding wheel of 60-80 meshes with a green carbon grinding wheel of 180-240 meshes to perform fine grinding polishing on a disc shear, controlling the linear speed of a grinding wheel to be 13-15 m/s, controlling the rotating speed of the disc shear to be 28-32 r/min, controlling the transverse moving speed of the disc shear to be 500-600 mm/min, controlling the continuous feed rate of the grinding wheel to be within 0.005mm/min, performing fine grinding polishing on the disc shear twice in a mode of reducing the grinding pressure so as to polish the surface of the disc shear, and controlling the surface roughness of the surface of the disc shear to be 0.10-0.15 mu m, wherein the grinding pressure of the first fine grinding polishing is controlled to be 0.5-0.6 Kpa, and the grinding pressure of the second fine grinding polishing is controlled to be 0.2-0.3 Kpa.
Preferably, in the grinding method of the stainless steel precision foil shearing disc shear, the disc shear has large grinding amount and high surface hardness during coarse grinding of the disc shear, and belongs to strong grinding, so that the continuous feed amount of a grinding wheel is required to be ensured within 0.05 mm/min.
Preferably, in the grinding method of the stainless steel precision foil shearing disc shear, when the grinding position is adjusted, the highest gear is selected for the thimble pressure, and meanwhile, a high-temperature-resistant and wear-resistant lubricant is added to the tip to avoid vibration.
The grinding method of the stainless steel precision foil shearing disc shear adopts the grinding machine for the roller, controls the grinding parameters, and realizes the grinding requirement of the grinding machine for the roller on the stainless steel precision foil shearing disc shear through small feed amount, slow grinding and modes of different grinding wheels, thereby improving the trimming and grinding precision of the disc shear, ensuring the consistent outer diameter of the disc shear and the sharp cutting edge, leading the cutting edge to be smooth and have no defect when the stainless steel precision foil is sheared, ensuring the stability of the shearing width and the shearing precision in the stainless steel precision foil processing process, and completely meeting the requirement of the stainless steel precision foil on the shearing quality, thereby meeting the high-grade industrial high-quality requirement of the stainless steel precision foil.
The following describes a method for grinding a stainless steel precision foil shearing disc shear according to the present invention with reference to specific examples.
Examples
In this embodiment, the total grinding amount of the disc shear is determined to be 0.05mm according to the shearing amount requirement of the stainless steel precision foil shearing unit, and the grinding method of the disc shear for shearing the stainless steel precision foil in this embodiment includes the following steps:
(1) replacing a center frame supporting tile of a grinding machine for the roll with the model WS 180 multiplied by 1500CNC with a thimble device, and adjusting the height of the centre line of the thimble to be coincident with the position of a grinding centre line;
(2) overlapping and fixing a group of circle shears with consistent outer diameters to be ground on a grinding circular shaft with the length of 450mm, fixing flange plate clamping devices on two sides of the grinding circular shaft, and fixing the flange plate clamping devices on a grinding machine through a thimble jacking clamping device, wherein the maximum tolerance of the outer diameters of the circle shears is controlled to be +/-50 mu m;
(3) firstly, a green carbon grinding wheel of 80 meshes is used for carrying out rough grinding on a disc shear, the grinding wheel starts to grind from the middle position of the disc shear, the linear speed of the grinding wheel is controlled at 13m/s, the rotating speed of the disc shear is controlled at 32r/min, the transverse moving speed of the disc shear is controlled at 800mm/min, the continuous feed amount of the grinding wheel is controlled at 0.02mm/min, and the lower amount of the grinding amount is controlled to be less than 0.05 mm;
(4) in order to ensure the sharpness of a shearing edge when the extremely thin stainless steel strip is sheared, a green carbon grinding wheel of 80 meshes is replaced by a green carbon grinding wheel of 180 meshes for carrying out fine grinding and polishing on a disc shear, the linear speed of a grinding wheel is controlled to be 13m/s, the rotating speed of the disc shear is controlled to be 28r/min, the transverse moving speed of the disc shear is controlled to be 600mm/min, the continuous feed rate of the grinding wheel is controlled to be within 0.002mm/min, the fine grinding and polishing of the disc shear are carried out twice in a mode of reducing the grinding pressure so as to polish the surface of the disc shear, the surface roughness of the disc shear is controlled to be 0.10-0.15 um, wherein the grinding pressure of the first fine grinding and polishing is controlled to be 0.6Kpa, and the grinding pressure.
The above embodiments and examples are only for illustrating the technical solutions of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments and examples, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments and examples can be modified, or some of the technical features can be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments and examples of the present invention.
Claims (4)
1. A grinding method of a disc shear for shearing stainless steel precision foil is characterized by comprising the following steps:
replacing a central frame supporting tile of a grinding machine for the roller with a thimble device, and adjusting the height of the centre line of the thimble to be superposed with the position of the grinding centre line;
according to the thickness of a circle shear to be ground, a group of circle shears with consistent outer diameters are overlapped and sleeved on a grinding circular shaft, flange plate clamping devices are fixed on two sides of the grinding circular shaft, the group of circle shears are clamped between the flange plate clamping devices on the two sides, and then the flange plate clamping devices are tightly pressed by ejector pins to be fixed on a grinding machine;
determining the total grinding quantity of the disc shear according to the minimum outer diameter requirement and the surface abrasion condition of the disc shear, wherein the maximum total grinding quantity is 0.2 mm;
carrying out rough grinding on a disc shear by using a 60-80-mesh green carbon grinding wheel, grinding the grinding wheel from the middle position of the disc shear, controlling the linear speed of the grinding wheel to be 13-15 m/s, controlling the rotating speed of the disc shear to be 28-32 r/min, controlling the transverse moving speed of the disc shear to be 600-800 mm/min, controlling the continuous feed amount of the grinding wheel to be within 0.05mm/min, and controlling the lower grinding amount to be less than the total grinding amount;
the method comprises the steps of replacing a green carbon grinding wheel with 60-80 meshes with a green carbon grinding wheel with 180-240 meshes to perform fine grinding polishing on a disc shear, controlling the linear speed of a grinding wheel to be 13-15 m/s, controlling the rotating speed of the disc shear to be 28-32 r/min, controlling the transverse moving speed of the disc shear to be 500-600 mm/min, controlling the continuous feed amount of the grinding wheel to be within 0.005mm/min, performing fine grinding polishing on the disc shear twice in a descending grinding pressure mode, and controlling the surface roughness of the surface of the disc shear to be 0.10-0.15 mu m, wherein the grinding pressure of the first fine grinding polishing is controlled to be 0.5-0.6 Kpa, and the grinding pressure of the second fine grinding polishing is controlled to be 0.2-0.3 Kpa.
2. The method for grinding a stainless steel precision foil shearing disc shear as claimed in claim 1, wherein the maximum tolerance of the outer diameter of the group of disc shears is controlled to be ± 50 um.
3. The grinding method of the stainless steel precision foil shearing disc shear according to claim 1 or 2, wherein the number of the group of disc shears is 30-50, and the length of the grinding circular shaft is 320mm or 450 mm.
4. The grinding method of the stainless steel precision foil shearing disc shear as claimed in claim 1, wherein the grinding method comprises the following steps:
the total grinding amount of the disc shear is 0.05 mm;
the rough grinding of the disc shear is carried out by using an 80-mesh green carbon grinding wheel, the linear speed of the grinding wheel is controlled at 13m/s, the rotating speed of the disc shear is controlled at 32r/min, the transverse moving speed of the disc shear is controlled at 800mm/min, the continuous feed amount of the grinding wheel is controlled at 0.02mm/min, and the lower grinding amount is controlled to be less than 0.05 mm;
the fine grinding and polishing of the disc shear are carried out by using a 180-mesh green carbon grinding wheel, the linear speed of the grinding wheel is controlled at 13m/s, the rotating speed of the disc shear is controlled at 28r/min, the transverse moving speed of the disc shear is controlled at 600mm/min, the continuous feed amount of the grinding wheel is controlled within 0.002mm/min, the grinding pressure of the first fine grinding and polishing is controlled at 0.6Kpa, and the grinding pressure of the second fine grinding and polishing is controlled at 0.2 Kpa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010895135.4A CN112171382A (en) | 2020-08-31 | 2020-08-31 | Grinding method of disc shear for shearing stainless steel precise foil |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010895135.4A CN112171382A (en) | 2020-08-31 | 2020-08-31 | Grinding method of disc shear for shearing stainless steel precise foil |
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| CN103331654A (en) * | 2013-07-05 | 2013-10-02 | 山西太钢不锈钢股份有限公司 | Method for grinding disc scissors |
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| CN105522449A (en) * | 2015-11-27 | 2016-04-27 | 张志杰 | Disc shear polishing equipment |
| CN105729260A (en) * | 2014-12-09 | 2016-07-06 | 重庆市金升机械配件制造有限公司 | Roller grinding process |
| CN107199507A (en) * | 2017-06-12 | 2017-09-26 | 首钢京唐钢铁联合有限责任公司 | Technological method for grinding roller |
| CN110052900A (en) * | 2019-05-29 | 2019-07-26 | 北京首钢股份有限公司 | A kind of method for grinding improving the new roller initial stage roll surface roughness of breaking-down roll |
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2020
- 2020-08-31 CN CN202010895135.4A patent/CN112171382A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07223023A (en) * | 1994-02-16 | 1995-08-22 | Nippon Steel Corp | On-line grinding sleeve for wrapper roll of band coiling device |
| CN101823217A (en) * | 2010-04-01 | 2010-09-08 | 河北文丰钢铁有限公司 | Circle shear blade repairing and sharpening device |
| CN202656016U (en) * | 2012-04-28 | 2013-01-09 | 唐山中厚板材有限公司 | Device for grinding blade of disc scissors |
| CN203210127U (en) * | 2013-03-25 | 2013-09-25 | 宝钢股份黄石涂镀板有限公司 | Clamp for coping disc shear blade |
| CN103231289A (en) * | 2013-05-21 | 2013-08-07 | 唐山瑞丰钢铁（集团）有限公司 | Grinding method for controlling roughness of surfaces of different rollers |
| CN103331654A (en) * | 2013-07-05 | 2013-10-02 | 山西太钢不锈钢股份有限公司 | Method for grinding disc scissors |
| CN105729260A (en) * | 2014-12-09 | 2016-07-06 | 重庆市金升机械配件制造有限公司 | Roller grinding process |
| CN105479277A (en) * | 2015-11-25 | 2016-04-13 | 安徽楚江科技新材料股份有限公司 | Grinding method for circle cutter |
| CN105522449A (en) * | 2015-11-27 | 2016-04-27 | 张志杰 | Disc shear polishing equipment |
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| CN110052900A (en) * | 2019-05-29 | 2019-07-26 | 北京首钢股份有限公司 | A kind of method for grinding improving the new roller initial stage roll surface roughness of breaking-down roll |
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Application publication date: 20210105 |