CN109732025B - Production process of hexagonal frame forging of high-strength wire spacing device - Google Patents
Production process of hexagonal frame forging of high-strength wire spacing device Download PDFInfo
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- CN109732025B CN109732025B CN201910052189.1A CN201910052189A CN109732025B CN 109732025 B CN109732025 B CN 109732025B CN 201910052189 A CN201910052189 A CN 201910052189A CN 109732025 B CN109732025 B CN 109732025B
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Abstract
The invention relates to a production process of a hexagonal frame forge piece of a high-strength wire spacing device, which comprises the following steps of blanking, heating, upsetting, punching and performing a blank; reheating the preformed blank; forging and forming in a forming die; performing heat treatment after forging and forming; and performing shot blasting treatment, removing oxide skin, and finishing the forging process of the hexagonal frame forge piece. The invention has the advantages of reasonable and complete process and convenient operation, the tensile strength of the hexagonal frame is 380-400MPa, the hardness of the hexagonal frame is 100-120HB, and the limiting stop of the hexagonal frame is changed from the prior annular limiting hole to the prior limiting stop, thereby reducing the material consumption and ensuring the overall strength. In the past, a large amount of coal resources are required to be burnt for casting, a large amount of harmful gas is generated by burning, the pollution is serious, the quality of a cast product is not high, the yield of 100 pieces in 8 hours in the past is cast, and 500 pieces in 8 hours are forged at present, the quality is improved by adopting a forging process, and the yield is improved.
Description
Technical Field
The invention relates to the field of overhead transmission line protection hardware machining, in particular to a production process of a hexagonal frame forging of a high-strength lead spacing device.
Background
according to the technical conditions and test methods of the spacer in the power industry standard (D L/T1098-2009), the spacer not only can meet mechanical strength of certain wire clamp strength, holding force along the line, torsion moment, horizontal and vertical directions, and the like, but also can have certain vibration fatigue resistance.
However, the frames of the spacer bars on the market at present are formed by casting, so that the tensile strength is not enough, the hardness is not high, casting defects are more, and the cast structure consumes more materials; in the past, a large amount of coal resources are required to be burnt in casting, a large amount of harmful gas is generated in burning, the pollution is serious, and the quality of cast products is not high.
Disclosure of Invention
In order to solve the problems, the invention provides a production process of a hexagonal frame forging of a high-strength wire spacing device, which is reasonable and complete in process, convenient to operate, improved in quality by adopting a forging mode and improved in productivity.
The technical scheme of the invention is as follows:
A production process of a hexagonal frame forging of a high-strength wire spacing device,
1) Blanking, selecting the diameter of the aluminum bar to be 150mm, and segmenting the aluminum bar into a plurality of small aluminum ingots by a sawing machine, wherein the length of each small aluminum ingot is 150 mm.
2) Heating a plurality of small aluminum ingots at 460-480 ℃.
3) Upsetting the heated small aluminum ingot by an air hammer to form a flat cake; and then punching the upset aluminum ingot by a punch press, and feeding the aluminum ingot into a preforming die for preforming after punching.
4) The preformed billet is again heated to 460-480 degrees celsius.
5) And (3) conveying the heated pre-formed blank into a forming die to be forged and formed by a press, and removing scrap edges and burrs to form the hexagonal frame forging.
6) And (3) carrying out heat treatment on the forged and formed hexagonal frame forge piece, heating to 530-550 ℃, quenching, water cooling and finally tempering to 180 ℃.
7) And performing shot blasting treatment on the hexagonal frame forge piece to remove oxide skin, and finishing the forging process of the hexagonal frame forge piece.
The tensile strength of the hexagonal frame forging is 380-400MPa, and the hardness is 100-120 HB.
The heating is carried out by adopting a resistance furnace.
The press is an electric screw press.
The forming die comprises an upper die and a lower die, wherein a hexagonal protrusion is designed on the upper die, a hexagonal groove is designed in the middle of the hexagonal protrusion, the outer edge of the hexagonal position of the hexagonal groove protrudes outwards in an arc shape, the outer edge of the edge groove of the hexagonal groove also protrudes outwards in an arc shape, reinforcing edge grooves are designed again on the outer edge and the inner edge of the hexagonal groove, and the inner edge of the hexagonal position is designed into a C-shaped reinforcing edge groove; the lower die is provided with a hexagonal protrusion, a hexagonal groove is designed in the middle of the hexagonal protrusion, the outer edge of the hexagonal position of the hexagonal groove protrudes outwards in an arc shape, the inner edge of the hexagonal position of the hexagonal groove is designed into a C-shaped lug, two symmetrical semicircular grooves are designed in the middle of the hexagonal position, the outer edge of the edge groove of the hexagonal groove also protrudes outwards in an arc shape, the outer edge and the inner edge of the hexagonal groove are designed with reinforcing edge grooves again, and the position where the outer edge of the hexagonal position protrudes outwards in an arc shape and the position where the inner edge of the hexagonal position is designed; the upper die and the lower die are correspondingly matched up and down, and a cavity of the hexagonal frame forging is formed between the upper die and the lower die after the upper die and the lower die are buckled.
The invention has the advantages of reasonable and complete process and convenient operation, the hexagonal frame is changed from the prior casting molding to the prior forging molding, the tensile strength of the hexagonal frame is increased from the prior 200MPa to 380-400MPa, the hardness of the hexagonal frame is increased from 50-60HB to 100-120HB, the limiting stop mouth of the hexagonal frame is changed from the prior annular limiting hole to the prior limiting stop mouth, the material consumption is reduced, and the integral strength is ensured. In the past, a large amount of coal resources are required to be burnt for casting, a large amount of harmful gas is generated by burning, the pollution is serious, the quality of a cast product is not high, the yield of 100 pieces in 8 hours in the past is cast, and 500 pieces in 8 hours are forged at present, the quality is improved by adopting a forging process, and the yield is improved.
Drawings
FIG. 1 is a schematic view of an upper die of the present invention.
Fig. 2 is a schematic view of the lower die of the present invention.
Detailed Description
Referring to the attached figure 1, a production process of a hexagonal frame forging of a high-strength wire spacing device comprises the following steps:
1) Blanking, selecting the diameter of the aluminum bar to be 150mm, and segmenting the aluminum bar into a plurality of small aluminum ingots by a sawing machine, wherein the length of each small aluminum ingot is 150 mm.
2) Heating a plurality of small aluminum ingots at 460-480 ℃.
3) Upsetting the heated small aluminum ingot by an air hammer to form a flat cake; and then punching the upset aluminum ingot by a punch press, and feeding the aluminum ingot into a preforming die for preforming after punching.
4) The preformed blank is reheated to 460-480 degrees celsius.
5) And (3) conveying the heated pre-formed blank into a forming die to be forged and formed by a press, and removing scrap edges and burrs to form the hexagonal frame forging.
6) And (3) carrying out heat treatment on the forged and formed hexagonal frame forge piece, heating to 530-550 ℃, quenching, water cooling and finally tempering to 180 ℃.
7) And performing shot blasting treatment on the hexagonal frame forge piece to remove oxide skin, and finishing the forging process of the hexagonal frame forge piece.
The tensile strength of the hexagonal frame forging is 380-400MPa, and the hardness is 100-120 HB.
The heating is carried out by adopting a resistance furnace.
The press is an electric screw press.
The forming die comprises an upper die 1 and a lower die 2, wherein a hexagonal protrusion 11 is designed on the upper die 1, a hexagonal groove 12 is designed in the middle of the hexagonal protrusion 11, the outer edge of the hexagonal position of the hexagonal groove 12 protrudes outwards in an arc shape 13, the outer edge of the edge groove of the hexagonal groove 12 also protrudes outwards in an arc shape 14, reinforcing edge grooves 15 are designed again on the outer edge and the inner edge of the hexagonal groove 12, and the inner edge of the hexagonal position is designed into a C-shaped reinforcing edge groove 16; the lower die 2 is provided with a hexagonal protrusion 21, a hexagonal groove 22 is designed in the middle of the hexagonal protrusion 21, the outer edge of the hexagonal position of the hexagonal groove 22 protrudes outwards in an arc shape 23, the inner edge of the hexagonal position of the hexagonal groove 22 is designed into a C-shaped protrusion 24, two symmetrical semicircular grooves 25 are designed in the middle of the hexagonal position, the outer edge of the edge groove of the hexagonal groove 22 also protrudes outwards in an arc shape 26, the outer edge and the inner edge of the hexagonal groove 22 are provided with reinforcing edge grooves 27 again, and the outer edge of the hexagonal position protrudes outwards in an arc shape 23 and the inner edge of the hexagonal position is designed into a C-shaped protrusion 24; the upper die 1 and the lower die 2 are correspondingly matched up and down, and a cavity of the hexagonal frame forging is formed between the upper die 1 and the lower die 2 after the upper die 1 and the lower die are buckled. The design cooperation of the C-shaped reinforcing side groove of the upper die and the C-shaped lug of the lower die enables the limiting stop of the hexagonal frame forging to be changed from the conventional annular limiting hole into the conventional limiting stop, reduces material consumption and ensures overall strength.
The invention has the advantages of reasonable and complete process and convenient operation, the hexagonal frame is changed from the prior casting molding to the prior forging molding, the tensile strength of the hexagonal frame is increased from the prior 200MPa to 380-400MPa, the hardness of the hexagonal frame is increased from 50-60HB to 100-120HB, the limiting stop mouth of the hexagonal frame is changed from the prior annular limiting hole to the prior limiting stop mouth, the material consumption is reduced, and the integral strength is ensured. In the past, a large amount of coal resources are required to be burnt for casting, a large amount of harmful gas is generated by burning, the pollution is serious, the quality of a cast product is not high, the yield of 100 pieces in 8 hours in the past is cast, and 500 pieces in 8 hours are forged at present, the quality is improved by adopting a forging process, and the yield is improved. The present invention is not limited to hexagonal frames, but may be a frame in a straight line shape, a frame in a triangular shape, a frame in a quadrangular shape, a frame in an octagonal shape, or a frame in a decagonal shape, which is within the scope of the patent as long as it is within the ability of those skilled in the art to vary.
Claims (4)
1. A production process of a hexagonal frame forging of a high-strength lead spacing device is characterized in that,
1) Blanking, selecting the diameter of an aluminum bar to be 150mm, and segmenting the aluminum bar into a plurality of small aluminum ingots by a sawing machine, wherein the length of each small aluminum ingot is 150 mm;
2) Heating a plurality of small aluminum ingots at 460-480 ℃,
3) Upsetting the heated small aluminum ingot by an air hammer to form a flat cake; punching the upset aluminum ingot by a punch press, and feeding the aluminum ingot into a preforming die for preforming after punching;
4) Heating the preformed blank again to 460-480 ℃;
5) The heated preformed blank is sent to a forming die to be forged and formed through a press, and scrap edges and burrs are removed to form a hexagonal frame forging;
6) Carrying out heat treatment on the forged and molded hexagonal frame forge piece, heating to 530-550 ℃, then quenching and water cooling, and finally tempering to 180 ℃;
7) Performing shot blasting treatment on the hexagonal frame forge piece to remove oxide skin, and finishing the forging process of the hexagonal frame forge piece;
The forming die comprises an upper die and a lower die, wherein a hexagonal protrusion is designed on the upper die, a hexagonal groove is designed in the middle of the hexagonal protrusion, the outer edge of the hexagonal position of the hexagonal groove protrudes outwards in an arc shape, the outer edge of the edge groove of the hexagonal groove also protrudes outwards in an arc shape, reinforcing edge grooves are designed again on the outer edge and the inner edge of the hexagonal groove, and the inner edge of the hexagonal position is designed into a C-shaped reinforcing edge groove; the lower die is provided with a hexagonal protrusion, a hexagonal groove is designed in the middle of the hexagonal protrusion, the outer edge of the hexagonal position of the hexagonal groove protrudes outwards in an arc shape, the inner edge of the hexagonal position of the hexagonal groove is designed into a C-shaped lug, two symmetrical semicircular grooves are designed in the middle of the hexagonal position, the outer edge of the edge groove of the hexagonal groove also protrudes outwards in an arc shape, the outer edge and the inner edge of the hexagonal groove are designed with reinforcing edge grooves again, and the position where the outer edge of the hexagonal position protrudes outwards in an arc shape and the position where the inner edge of the hexagonal position is designed; the upper die and the lower die are correspondingly matched up and down, and a cavity of the hexagonal frame forging is formed between the upper die and the lower die after the upper die and the lower die are buckled.
2. The production process of the hexagonal frame forging of the high-strength wire spacing device according to claim 1, wherein the tensile strength of the hexagonal frame forging is 380-400MPa, and the hardness is 100-120 HB.
3. The process for producing a hexagonal frame forging of a high strength wire spacer according to claim 1, wherein the heating is by resistance furnace heating.
4. The process for producing a hexagonal frame forging of a high strength wire spacer according to claim 1, wherein the press is an electric screw press.
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| CN201910052189.1A CN109732025B (en) | 2019-01-21 | 2019-01-21 | Production process of hexagonal frame forging of high-strength wire spacing device |
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| CN201910052189.1A CN109732025B (en) | 2019-01-21 | 2019-01-21 | Production process of hexagonal frame forging of high-strength wire spacing device |
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| CN109732025B true CN109732025B (en) | 2020-07-21 |
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| CN111633172B (en) * | 2020-06-16 | 2021-12-03 | 安吉明远锻造有限公司 | Forging forming die for frame type metal forging and forging forming method |
| CN113751651B (en) * | 2021-09-15 | 2024-01-19 | 福建精诚锻造有限公司 | Combined bearing seat forging device and forging process thereof |
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| CN106040932A (en) * | 2016-07-27 | 2016-10-26 | 江苏双汇电力发展股份有限公司 | One-time forming manufacturing technology for U-shaped suspension ring |
| CN108555217A (en) * | 2018-05-28 | 2018-09-21 | 温州三连汽车零部件有限公司 | One mould bicavate carries High angle web forging piece molding die |
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| US4635351A (en) * | 1983-06-01 | 1987-01-13 | Motorola, Inc. | Method and machine for providing alternator pole pieces |
| CN102228951B (en) * | 2011-04-26 | 2012-11-14 | 哈尔滨哈飞工业有限责任公司 | Chambering-forging forming method for aluminum alloy hub with complex structure and die thereof |
| CN104707929B (en) * | 2013-12-12 | 2017-02-22 | 陕西宏远航空锻造有限责任公司 | High-temperature alloy disc die forging method |
| CN104148560A (en) * | 2014-07-07 | 2014-11-19 | 贵州航天新力铸锻有限责任公司 | Airtight forging method for aluminum alloy forge piece |
| CN104438419B (en) * | 2014-10-24 | 2016-09-21 | 无锡派克新材料科技股份有限公司 | A kind of forging molding process of high tubular aluminum alloy forge piece |
| CN104525807A (en) * | 2014-11-10 | 2015-04-22 | 沈阳黎明航空发动机(集团)有限责任公司 | Method for forming corners of frame forging piece |
| CN105935732A (en) * | 2016-06-30 | 2016-09-14 | 安徽省瑞杰锻造有限责任公司 | Embryo mold forging process for forge piece with holes in step at one end |
| CN108311621A (en) * | 2018-02-28 | 2018-07-24 | 江苏森威精锻有限公司 | A kind of forging technology of Wheel hub unit flange |
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|---|---|---|---|---|
| CN204842825U (en) * | 2015-07-17 | 2015-12-09 | 西安航空动力股份有限公司 | Forge automatic mould |
| CN106040932A (en) * | 2016-07-27 | 2016-10-26 | 江苏双汇电力发展股份有限公司 | One-time forming manufacturing technology for U-shaped suspension ring |
| CN108555217A (en) * | 2018-05-28 | 2018-09-21 | 温州三连汽车零部件有限公司 | One mould bicavate carries High angle web forging piece molding die |
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