CN105563244B - The method for fine finishing and its device of two half-watt thin-wall bushes - Google Patents

The method for fine finishing and its device of two half-watt thin-wall bushes Download PDF

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Publication number
CN105563244B
CN105563244B CN201610079279.6A CN201610079279A CN105563244B CN 105563244 B CN105563244 B CN 105563244B CN 201610079279 A CN201610079279 A CN 201610079279A CN 105563244 B CN105563244 B CN 105563244B
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thin
boring cover
bush
watt
boring
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CN105563244A (en
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魏敏
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Taiyuan Heavy Industry Co Ltd
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Taiyuan Heavy Industry Co Ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24BMACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B5/00Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor
    • B24B5/02Machines 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
    • B24B5/04Machines 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 externally
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24BMACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B5/00Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor
    • B24B5/02Machines 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
    • B24B5/06Machines 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24BMACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B5/00Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor
    • B24B5/35Accessories

Abstract

The method for fine finishing and its device of two half-watt thin-wall bushes, are related to the processing of thin-walled parts, and after solving existing bushing finishing, part deformation is excessive, the technical problem of inside and outside circle decentraction.The procedure of processing of the present invention:Mould is installed on vertical grinder chuck;On bushing vertically-arranged to mould, No. II boring cover, No. I boring cover will be sequentially placed in bushing upper surface;Draw-in bar is installed, tight bushing after centering;Refine excircle of bushing;Outside link, tight bushing, draw-in bar of dismantling are installed;Boring head, right boring endoporus are installed;By bushing and mould integral hoisting to turning bushing end face of flange on vertical lathe.The present invention is used for the finishing of two half-watt thin-wall bushes, solves the problems, such as that existing processing method causes part deformation excessive, meanwhile, be once loaded achievable fine cylindrical, and right boring endoporus, both saves process, in turn ensure that the concentricity of part inside and outside circle.

Description

The method for fine finishing and its device of two half-watt thin-wall bushes
Technical field
The present invention relates to the processing method of thin-walled parts, the method for fine finishing of more particularly to a kind of two half-watts thin-wall bush and Its device.
Background technology
Two half-watt thin-wall bushes are installed in the roughing mill transmission roll bearing seat of strip-mill strip, for supporting roughing mill to work Roller transmission shaft and the angle for adjusting transmission shaft, so as to provide transmission accurate operation power for milling train.
As shown in Figure 1, the cylindrical of two half-watt thin-wall bush parts is steel body, inner wall and both ends of the surface are bonded babbit, car It is two half-watts (as shown in Figure 2) to cut rear wire cutting.Bushing inside and outside circle requires concentricity 0.05mm, inner circle roughness requirements Ra1.6μ m.Used since two half-watts match, so two half-watts need to be processed in pairs during finishing.Usually there are two kinds of processing methods, the first side Case:First by two half-watt bushing combinations, the spot welding at flange excircle, again falls crator car after finishing.Due to two half-watt part sheets Body rigidity is poor, and need to use larger clamping force retaining element in processing, therefore causes the excessive (deformation of bushing finishing post-construction deformation Amount is in the range of 0.3~0.4mm), and inside and outside circle decentraction, it can not meet design requirement.Second scheme:First by after combination The flange excircle of two half-watt bushings is fixed with clip, then pushes down part end face with ring flange, and precision-machined parts are cylindrical.Due to card It is poor to bind round circularity, firmly after banding, unbalance stress on bushing circumferencial direction, causes excircle of bushing to deform under the action of chip power It is larger, it can not meet the technical requirements of bushing.
The content of the invention
A kind of the shortcomings that it is an object of the invention to overcome the prior art, there is provided method for fine finishing of two half-watts thin-wall bush And its device, after solving existing bushing finishing, part deformation is excessive, the technical problem of inside and outside circle decentraction.
The present invention is achieved by the following technical solutions:
A kind of method for fine finishing of two half-watts thin-wall bush, it is comprised the following steps that:
1. circular mould is installed on vertical grinder chuck, and with chuck centering;
2. by two half-watt thin-wall bush vertically-arrangeds to circular mould, No. II is sequentially placed in two half-watt thin-wall bush upper surfaces Boring cover, No. I boring cover;
3. by the centering screw being arranged in No. II boring cover and circular mould outer rim boss counterbore, two half-watt thin-walleds are served as a contrast The cylindrical centering of set;
4. installing draw-in bar after centering, and two half-watt thin-wall bushes are compressed admittedly by No. I boring cover, No. II boring cover with nut It is fixed;
5. it is cylindrical to refine two half-watt thin-wall bushes;
6. installing outside link after the completion of grinding, and two half-watt thin-wall bushes are fixed by No. II boring cover with nut, Dismantle draw-in bar, nut, emery wheel of dismantling;
7. boring head is installed, right boring endoporus;
After 8. inside and outside circle machines, by half-watt thin-wall bush and mould integral hoisting to vertical lathe;
9. centering part, draw-in bar of dismantling, nut, No. I boring cover, No. II boring cover, outside link, and pass through outside link with nut Through hole on excircle of bushing is crossed to be fixed the cylindrical of half-watt thin-wall bush;
10. turning half-watt thin-wall bush end face of flange is reversed end for end to desired size, part, turning half-watt thin-wall bush after centering Another end face of flange is to desired size.
The device that a kind of two half-watts thin-wall bush method for fine finishing uses, by draw-in bar, nut, No. I boring cover, No. II it is vexed Lid, outside link, centering screw and circular mould composition, the circle mould are installed to vertical with 4 bolts and 4 equal height cushion blocks On grinding machine chuck, the circle mould outer rim has a convex platform, two half-watt thin-wall bush of vertically-arranged in the convex platform of the circle mould, No. II boring cover is placed in the upper surface of the two half-watts thin-wall bush, and No. I boring cover is placed in the upper surface of No. II boring cover;Described II Number boring cover outer rim has lower convex platform, gap-contact between the lower convex platform and two half-watt thin-wall bushes, the convex platform, lower convex platform water Square to circumferentially respectively be evenly distributed with 6 screw holes, be respectively charged into centering screw, the convex platform vertical direction is circumferentially at least equal 4 bolts hole of cloth, the lower convex platform vertical direction are circumferentially at least evenly distributed with 4 through holes corresponding with convex platform bolt hole, respectively Load outside link, and be fixed two half-watt thin-wall bushes by No. II boring cover with nut;No. I boring cover vertical direction edge Circumference is at least evenly distributed with 4 bolt holes, and the circle mould vertical direction is circumferentially at least evenly distributed with 4 bolts with No. I boring cover The corresponding bolt hole of through hole, is respectively charged into draw-in bar, and with nut by No. I boring cover, No. II boring cover by two half-watt thin-wall bushes It is fixed.
Compared with prior art, the present invention due to being mounted with 6 respectively on circular mould and No. II boring cover outer rim boss Centering screw, can be used for finely tuning centering bushing, registration small compared to clip strength, and bad mold joint can align, and solve The problem of mode of being loaded causes part deformation excessive before having determined.Meanwhile two boring covers are installed in part end face, convert pull rod Position, can both realize fine cylindrical, can also right boring endoporus, compared with existing processing scheme, both saved the time of centering, It in turn ensure that the concentricity of the inside and outside circle of part.
Brief description of the drawings
Fig. 1 is the structure diagram (graphics) after the combination of two half-watt thin-wall bushes;
Fig. 2 is half-watt thin-wall bush part drawing (graphics);
Fig. 3 is the device of the invention structure diagram (front view).
Embodiment
The exemplary embodiments of the present invention, will describe in detail with reference to attached drawing.It should be understood that the present invention can be in different realities Applying has various change in example, all do not depart from protection scope of the present invention, and explanation and diagram therein are to be illustrated as being used, and It is not used to the limitation present invention.
As shown in figure 3, a kind of method for fine finishing of two half-watts thin-wall bush, its step are as follows:
1. circular mould 7 is installed on vertical grinder chuck, and with chuck centering;
2. by two half-watt thin-wall bushes, 8 vertically-arranged to circular mould 7, it is sequentially placed in two half-watt thin-wall bushes, 8 upper surface 4, No. I boring covers 3 of No. II boring cover;
It is 3. by the centering screw 6 being arranged in 7 outer rim boss counterbore of No. II boring cover 4 and circular mould, two half-watts are thin The cylindrical centering of wall liner set 8 (the cylindrical center of circle of part is consistent with grinding machine chuck hub);
4. draw-in bar 1 is installed after centering, and with nut 2 by 3, No. II boring covers 4 of No. I boring cover by two half-watt thin-wall bushes 8 It is fixed;
5. it is cylindrical to refine two half-watt thin-wall bushes 8;
6. installing outside link 5 after the completion of grinding, and two half-watt thin-wall bushes 8 are compressed admittedly by No. II boring cover 4 with nut 2 It is fixed, draw-in bar 1 of dismantling, nut 2, emery wheel of dismantling;
7. boring head is installed, right boring endoporus;
After 8. inside and outside circle machines, by half-watt thin-wall bush 8 and mould integral hoisting to vertical lathe;
9. centering part, draw-in bar 1 of dismantling, nut 2, I boring cover 3, II boring cover 4, outside link 5, and passed through with nut 2 Outside link 5 crosses through hole on excircle of bushing and is fixed the cylindrical of half-watt thin-wall bush 8;
10. 8 end face of flange of turning half-watt thin-wall bush is reversed end for end to desired size, part, turning half-watt thin-wall bush after centering 8 another end face of flange are to desired size.
As shown in figure 3, the device that a kind of two half-watts thin-wall bush method for fine finishing uses, by draw-in bar 1, nut No. 2, I numbers 3, No. II boring covers 4 of boring cover, outside link 5, centering screw 6 and circular mould 7 form, and the circle mould 7 is with 4 bolts and 4 Equal height cushion block is installed on vertical grinder chuck, and circle 7 outer rim of mould has a convex platform 7.1, the circle mould 7 it is convex Two half-watt thin-wall bush 8 of vertically-arranged in platform 7.1, No. II boring cover 4 of upper surface placement of the two half-watts thin-wall bush 8, described No. II No. I boring cover 3 is placed in the upper surface of boring cover 4, and 4 outer rim of No. II boring cover has lower convex platform 4.1,4.1 and two half-watt of lower convex platform Gap (gap-contact) is left between thin-wall bush 8;The convex platform 7.1,4.1 horizontal direction of lower convex platform are circumferentially uniformly distributed respectively 6 screw holes, are respectively charged into centering screw 6,7.1 vertical direction of convex platform is circumferentially at least evenly distributed with 4 bolts hole, described 4.1 vertical direction of lower convex platform is circumferentially at least evenly distributed with 4 through holes corresponding with convex platform bolt hole, is respectively charged into outside link 5, and Two half-watt thin-wall bushes 8 are fixed by No. II boring cover 4 with nut 2;3 vertical direction of No. I boring cover is circumferentially at least Uniformly distributed 4 bolt holes, 7 vertical direction of the circle mould be circumferentially at least evenly distributed with 4 it is corresponding with the bolt hole of No. I boring cover Bolt hole, be respectively charged into draw-in bar 1, and compressed two half-watt thin-wall bushes 8 by 3, No. II boring covers 4 of No. I boring cover with nut 2 It is fixed.
The present invention utilizes 3, No. II boring covers 4 of No. I boring cover, circular mould 7, draw-in bar 1, outside link 5, nut 2, centering screw 6, instead of the mode for the positioning that is loaded in the past with clip, realize disposable be loaded and complete inside and outside circle processing, carried out using frock auxiliary Centering is helped, solves the problems, such as conventional bushing finishing post-construction deformation and inside and outside circle decentraction.
The essence without departing from the present invention can be embodied in a variety of forms by the present invention, it will be appreciated that above-described embodiment Be not limited to foregoing details, and should widely be explained in claim limited range, therefore, fall into claim or its Change and remodeling in equivalent scope should be covered by the following claims.

Claims (2)

1. a kind of method for fine finishing of two half-watts thin-wall bush, the cylindrical of the two half-watts thin-wall bush is steel body, inner wall and two End face is bonded babbit, and the inside and outside circle of the two half-watts thin-wall bush requires concentricity 0.05mm, inner circle roughness requirements Ra1.6 μm, its method for fine finishing comprises the following steps that:
1. circular mould (7) is installed on vertical grinder chuck, and with chuck centering;
2. by two half-watt thin-wall bush (8) vertically-arrangeds to circular mould (7), put successively in two half-watt thin-wall bush (8) upper surfaces Put No. II boring cover (4), No. I boring cover (3);
3. by the centering screw (6) being arranged in No. II boring cover (4) and circular mould (7) outer rim boss counterbore, by two half-watts The cylindrical centering of thin-wall bush (8);
4. installing draw-in bar (1) after centering, and two half-watt thin-walleds are served as a contrast by No. I boring cover (3), No. II boring cover (4) with nut (2) Set (8) is fixed;
5. it is cylindrical to refine two half-watt thin-wall bushes (8);
6. installing outside link (5) after the completion of grinding, and two half-watt thin-wall bushes (8) are pressed by No. II boring cover (4) with nut (2) Fasten, draw-in bar of dismantling (1), nut (2), emery wheel of dismantling;
7. boring head is installed, right boring endoporus;
After 8. inside and outside circle machines, by half-watt thin-wall bush (8) and mould integral hoisting to vertical lathe;
9. centering part, draw-in bar of dismantling (1), nut (2), No. I boring cover (3), No. II boring cover (4), outside link (5), and use spiral shell Female (2) cross the cylindrical upper through hole of bushing (8) by outside link (5) and are fixed the cylindrical of half-watt thin-wall bush;
10. turning half-watt thin-wall bush (8) end face of flange is reversed end for end to desired size, part, turning half-watt thin-wall bush after centering (8) another end face of flange is to desired size.
2. device used by the method for fine finishing of two half-watts thin-wall bush according to claim 1, it is characterised in that:Institute Device is stated by draw-in bar (1), nut (2), No. I boring cover (3), No. II boring cover (4), outside link (5), centering screw (6) and circle Mould (7) forms, and the circle mould (7) is installed on vertical grinder chuck with 4 bolts and 4 equal height cushion blocks, the circle Shape mould (7) outer rim has convex platform (7.1), the interior two half-watt thin-wall bush of vertically-arranged of convex platform (7.1) of the circle mould (7) (8), No. II boring cover (4) is placed in the upper surface of the two half-watts thin-wall bush (8), and the upper surface of No. II boring cover (4) places I Number boring cover (3);No. II boring cover (4) outer rim has lower convex platform (4.1), the lower convex platform (4.1) and two half-watt thin-wall bushes (8) Between gap-contact, the convex platform (7.1), lower convex platform (4.1) horizontal direction circumferentially respectively be evenly distributed with 6 screw holes, respectively Load centering screw (6), convex platform (7.1) vertical direction is circumferentially at least evenly distributed with 4 bolts hole, the lower convex platform (4.1) vertical direction is circumferentially at least evenly distributed with 4 through holes corresponding with convex platform bolt hole, is respectively charged into outside link (5), is used in combination Two half-watt thin-wall bushes (8) are fixed by nut (2) by No. II boring cover (4);No. I boring cover (3) vertical direction edge circle At least it is evenly distributed with 4 bolt holes week, described circle mould (7) vertical direction is circumferentially at least evenly distributed with 4 bolts with No. I boring cover The corresponding bolt hole of through hole, is respectively charged into draw-in bar (1), and with nut (2) by No. I boring cover (3), No. II boring cover (4) by two Half-watt thin-wall bush (8) is fixed.
CN201610079279.6A 2016-02-04 2016-02-04 The method for fine finishing and its device of two half-watt thin-wall bushes Active CN105563244B (en)

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CN108799333B (en) * 2018-06-25 2019-12-06 宁波奥辰机械科技有限公司 manufacturing method of thin-wall wear-resistant shaft sleeve
CN111001827A (en) * 2019-11-26 2020-04-14 益阳橡胶塑料机械集团有限公司 Split type dynamic wear-resistant ring turning method
CN112025436A (en) * 2020-08-18 2020-12-04 甘丽 Rotary type green tile grinding machine

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Publication number Priority date Publication date Assignee Title
US5711195A (en) * 1995-10-27 1998-01-27 Koelling; Robert Apparatus and method for precision machining of metal rings
CN201579657U (en) * 2010-01-07 2010-09-15 沈阳飞机工业(集团)有限公司 High precision processing equipment for two halves bush inner holes
CN204135771U (en) * 2014-09-04 2015-02-04 上海中船三井造船柴油机有限公司 For the anti-deformation built-up jig of turning thin-wall workpiece
CN204321278U (en) * 2014-07-30 2015-05-13 安徽马钢重型机械制造有限公司 A kind of shaft-like workpiece processing alignment device
CN104875033A (en) * 2015-05-08 2015-09-02 武汉船用机械有限责任公司 Semicircular thin-wall workpiece processing tool and use method thereof
CN105149982A (en) * 2015-08-06 2015-12-16 西北轴承股份有限公司 Mold for machining shaft hole of welding butterfly valve body and application method
CN105234754A (en) * 2015-09-30 2016-01-13 中国科学院光电技术研究所 External grinding tool for thin-walled cylindrical part

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5711195A (en) * 1995-10-27 1998-01-27 Koelling; Robert Apparatus and method for precision machining of metal rings
CN201579657U (en) * 2010-01-07 2010-09-15 沈阳飞机工业(集团)有限公司 High precision processing equipment for two halves bush inner holes
CN204321278U (en) * 2014-07-30 2015-05-13 安徽马钢重型机械制造有限公司 A kind of shaft-like workpiece processing alignment device
CN204135771U (en) * 2014-09-04 2015-02-04 上海中船三井造船柴油机有限公司 For the anti-deformation built-up jig of turning thin-wall workpiece
CN104875033A (en) * 2015-05-08 2015-09-02 武汉船用机械有限责任公司 Semicircular thin-wall workpiece processing tool and use method thereof
CN105149982A (en) * 2015-08-06 2015-12-16 西北轴承股份有限公司 Mold for machining shaft hole of welding butterfly valve body and application method
CN105234754A (en) * 2015-09-30 2016-01-13 中国科学院光电技术研究所 External grinding tool for thin-walled cylindrical part

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