CN202656016U - Device for grinding blade of disc scissors - Google Patents
Device for grinding blade of disc scissors Download PDFInfo
- Publication number
- CN202656016U CN202656016U CN 201220189525 CN201220189525U CN202656016U CN 202656016 U CN202656016 U CN 202656016U CN 201220189525 CN201220189525 CN 201220189525 CN 201220189525 U CN201220189525 U CN 201220189525U CN 202656016 U CN202656016 U CN 202656016U
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- China
- Prior art keywords
- knife rest
- boss
- lug boss
- fastening
- blade
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- Expired - Lifetime
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- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
The utility model relates to a device for grinding a blade of a disc scissors and belongs to the technical field of metallurgical machinery equipment. The device is used for grinding the blade of the disc scissors by utilizing a working roll grinder of a rolling mill. According to the technical scheme, the device is composed of a knife rest shaft and a pressing plate, wherein a fastening lug boss and a knife rest lug boss are arranged on the knife rest shaft; an outer diameter of the fastening lug boss is more than a diameter of an inner hole of the blade of the disc scissors; the outer diameter of the knife rest lug boss is matched with the diameter of the inner hole of the blade of the disc scissors; a plurality of axial key slots are arranged on the periphery of the knife rest lug boss; the key slots are matched with the key slots of the inner hole of the blade of the disc scissors; the pressing plate is of annular shape; the inner diameter of the pressing plate is matched with the outer diameter of the knife rest lug boss; a plurality of axial jacking holes are arranged on the periphery of the pressing plate; and the positions of the jacking holes are matched with fastening screw holes on the outer side walls of the fastening lug boss. The device provided by the utility model can be used for finishing the grinding for the blade of the disc scissors through the roll grinder; the grinding time is greatly shortened; the cost is greatly lowered; the benefits are obviously increased; and the device can be used for completely replacing an imported excircle grinding grinder.
Description
Technical field
The utility model relates to a kind of device that utilizes operation roll of mill grinding machine reconditioning disc shear edge, belongs to the metallurgical machinery equipment technical field.
Background technology
Circle shear is one of important key equipment of Steel-rolling Industry, and wherein disc shear edge is the requisite part of circle shear as daily expendable part.Because cutting edge is sheared consumption in process of production, whenever cutting 10,000 tons of steel needs to change cutting edge once, identical for guaranteeing the cutting edge diameter, needs four cutting edges to change simultaneously.But every cutting edge is pressed designing requirement reconditioning cylindrical 8 times.At present, carry out circle shear blade repairing and sharpening and mainly adopt cylindrical reconditioning grinding machine, the reconditioning time is long, cost is high.In order to reduce maintenance cost, shorten the reconditioning time, be necessary equipment and the device of reconditioning disc shear edge are improved.
The utility model content
Technical problem to be solved in the utility model provide a kind of reconditioning time short, cost is low, can utilize the device of operation roll of mill grinding machine reconditioning disc shear edge.
The technical scheme that solves the problems of the technologies described above is:
A kind of device of reconditioning disc shear edge, it is by the knife rest axis body, platen forms, two waney boss are arranged on the knife rest axis body, be respectively fastening boss and knife rest boss, the external diameter of fastening boss is greater than the aperture of disc shear edge endoporus, the outside of fastening boss is the knife rest boss, the external diameter of knife rest boss matches with the aperture of disc shear edge endoporus, a plurality of axial keyways are arranged on the circumference of knife rest boss, the keyway of keyway and disc shear edge endoporus is complementary, the lateral surface that is connected with the knife rest boss at fastening boss has a plurality of fastening screws, platen is ring-type, the external diameter of the internal diameter of platen and knife rest boss is complementary, and a plurality of axial top wire holes are arranged on the platen circumference, and the fastening screw of the position of top wire hole and fastening boss lateral surface is complementary.
The device of above-mentioned reconditioning disc shear edge has center hole on the both ends of the surface of described knife rest axis body.
The device of above-mentioned reconditioning disc shear edge, the keyway on the circumference of described knife rest boss are 6-7.
Usefulness of the present utility model is:
The utility model can be with on the overlapping knife rest boss that is placed in the knife rest axis body of a plurality of circle shears, be fixed by platen and fastening boss, the knife rest axis body can be stuck on the roll grinder, finish reconditioning to disc shear edge by roll grinder, the reconditioning time shortens dramatically, cost also reduces greatly, has significantly improved benefit, can substitute the cylindrical reconditioning grinding machine of introduction fully.
Description of drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is use state diagram of the present utility model.
Mark is as follows among the figure: disc shear edge 1, knife rest axis body 2, fastening boss 3, knife rest boss 4, keyway 5, platen 6, jackscrew 7, center hole 8, roll grinder 9, the headstock 10, tailstock 11, centre frame 12, soft landing 13, emery wheel 14.
The specific embodiment
Show among the figure that the utility model is comprised of knife rest axis body 2, platen 6.Fastening boss 3 and knife rest boss 4 are arranged on the knife rest axis body 2, and the external diameter of fastening boss 3 is greater than the aperture of disc shear edge 1 endoporus, and the outside of fastening boss 3 is knife rest boss 4, and the external diameter of knife rest boss 4 matches with the aperture of circle shear endoporus.Disc shear edge 1 is enclosed within on the knife rest boss 4, and a side of disc shear edge 1 leans against the outside of fastening boss 3, and the opposite side of disc shear edge 1 is fixed by platen 6.
An embodiment of the present utility model utilizes milling train to scrap roll as knife rest axis body 2 blanks of disc shear edge 1, and take 3500 rolling mill rolls as example, overall length 7595mm, maximum diameter are φ 1040mm, the about 26t of gross weight, and material is high nickel chromium triangle infinitely chilled ductile cast iron.Disc shear edge 1 is followed the former factory of circle shear knife rest design size precision with knife rest boss 4 mating parts, the precision after 1 reconditioning of assurance disc shear edge.Because knife rest axis body 2 is the operation roll of mill transformation, material is high nickel chromium triangle infinitely chilled ductile cast iron, for preventing that repeatedly dismantling cutting edge causes the keyway wear-out failure, has designed seven keyways 5 at knife rest boss 4, with one standby six.Owing to carry out reconditioning at roll grinder, for saving cost, reduce workload, fully understanding on the basis of grinder structure, knife rest axis body 2 has been done the transformation of minimum radius at operation roll of mill, only changed the size of tailstock end, only change tailstock end holder watt in the reconditioning process, the holder of headstock end watt need not to change and again make.
The course of work of the present utility model is as follows:
Knife rest axis body 2 is placed on roll grinder 9 carriages, utilizes overhead traveling crane that disc shear edge 1 is sealed in knife rest boss 4, slowly knock disc shear edge 1 with copper rod, disc shear edge 1 is pushed into fastening boss 3 places, notice that the position of keyway 5 must be consistent.The keyway 5 of behind enough four or five disc shear edges 1 to be installed key being packed into is loaded onto gland 6, fastening jackscrew 7.Assembly and disassembly methods is opposite with assembling.
Concrete operations when grinding machine carries out reconditioning, are at first changed tailstock 11 end central frame supporting tiles take roll grinder MK84200-III 120 * 9000 full-automatic numerical control grinding machines as example, adjust holder watt center height.Adjust two ends centre frame 12 and soft landing 13 distances, make central frame supporting tile aim at knife rest axis body 2 assigned addresses, can not depart from, subsequently knife rest axis body 2 is placed in the soft landing 13, place and soft landing 13 is put down after complete, knife rest axis body 2 is dropped in the holder watt, emit the headstock 10 drive units, drive 2 rotations of knife rest axis body.Because disc shear edge 1 degree of wear is different, there is step in 1 of disc shear edge, thus must use manual grinding, with the protection grinding machine.
Claims (3)
1. the device of a reconditioning disc shear edge, it is characterized in that: it is by knife rest axis body (2), platen (6) forms, two waney boss are arranged on the knife rest axis body (2), be respectively fastening boss (3) and knife rest boss (4), the external diameter of fastening boss (3) is greater than the aperture of disc shear edge (1) endoporus, the outside of fastening boss (3) is knife rest boss (4), the external diameter of knife rest boss (4) matches with the aperture of disc shear edge (1) endoporus, a plurality of axial keyways (5) are arranged on the circumference of knife rest boss (4), keyway (5) is complementary with the keyway of disc shear edge (1) endoporus, the lateral surface that is connected with knife rest boss (4) at fastening boss (3) has a plurality of fastening screws, platen (6) is ring-type, the external diameter of the internal diameter of platen (6) and knife rest boss (4) is complementary, on platen (6) circumference a plurality of axial top wire holes are arranged, the fastening screw of the position of top wire hole and fastening boss (3) lateral surface is complementary.
2. the device of reconditioning disc shear edge according to claim 1 is characterized in that: center hole (8) is arranged on the both ends of the surface of described knife rest axis body (2).
3. the device of reconditioning disc shear edge according to claim 2 is characterized in that: the keyway (5) on the circumference of described knife rest boss (3) is 6-7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220189525 CN202656016U (en) | 2012-04-28 | 2012-04-28 | Device for grinding blade of disc scissors |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220189525 CN202656016U (en) | 2012-04-28 | 2012-04-28 | Device for grinding blade of disc scissors |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202656016U true CN202656016U (en) | 2013-01-09 |
Family
ID=47450949
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220189525 Expired - Lifetime CN202656016U (en) | 2012-04-28 | 2012-04-28 | Device for grinding blade of disc scissors |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202656016U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112171382A (en) * | 2020-08-31 | 2021-01-05 | 山西太钢不锈钢精密带钢有限公司 | Grinding method of disc shear for shearing stainless steel precise foil |
-
2012
- 2012-04-28 CN CN 201220189525 patent/CN202656016U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112171382A (en) * | 2020-08-31 | 2021-01-05 | 山西太钢不锈钢精密带钢有限公司 | Grinding method of disc shear for shearing stainless steel precise foil |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130109 |
|
| CX01 | Expiry of patent term |