CN111496162A - Manufacturing process of U-shaped ring - Google Patents
Manufacturing process of U-shaped ring Download PDFInfo
- Publication number
- CN111496162A CN111496162A CN202010374382.XA CN202010374382A CN111496162A CN 111496162 A CN111496162 A CN 111496162A CN 202010374382 A CN202010374382 A CN 202010374382A CN 111496162 A CN111496162 A CN 111496162A
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- China
- Prior art keywords
- rod piece
- upsetting
- end part
- shaped ring
- rod
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
- B21J5/06—Methods for forging, hammering, or pressing; Special equipment or accessories therefor for performing particular operations
- B21J5/08—Upsetting
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
- B21J5/002—Hybrid process, e.g. forging following casting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
- B21J5/06—Methods for forging, hammering, or pressing; Special equipment or accessories therefor for performing particular operations
- B21J5/10—Piercing billets
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
Abstract
The invention relates to a manufacturing process of a U-shaped ring, which comprises the following steps: s1, selecting a long rod-shaped raw material to perform material breaking treatment, wherein the length of a single rod piece after material breaking is 20-30 cm, and the diameter of the single rod piece is 1-3 cm; s2, arranging the rod pieces in parallel in a furnace chamber of a high-frequency heating furnace, and heating one end of each rod piece at 1100-1200 ℃ for 5-7 min; s3, upsetting and forming the heated end part of the rod by using an upsetting machine, wherein the upsetting and forming treatment is carried out twice, the first upsetting is carried out until the length of the end part is 70-80% of the original length, and the second upsetting is carried out until the length of the end part is 50-60%; and S4, flattening the end part of the rod piece after rough pressing by using a friction press, wherein the flattened end part of the rod piece is in a round cake shape, and cutting off redundant flash at the end part. The invention obviously improves the production efficiency and the utilization rate of raw materials, and improves various mechanical strengths of the product.
Description
Technical Field
The invention relates to the technical field of electric power fitting processing and manufacturing, in particular to a manufacturing process of a U-shaped ring.
Background
A large amount of electric power fittings are required to be used in the high-voltage electric power transmission process, the U-shaped ring is the electric power fitting with the largest demand, and the U-shaped ring is required to have batch production capacity. At present, the U-shaped ring production process of domestic electric power fittings generally falls behind, upsetting and pulling rods are mainly adopted for blank making, and because the workpiece blanks processed by the two processes are low in precision, the heating efficiency of a coal furnace is low, and the energy consumption is large.
In the prior art, the chinese patent application with publication number CN109483154A discloses a production process and equipment of a U-shaped ring, the production process comprises the steps of cutting a blank to length according to the specification of the U-shaped ring, feeding the cut blank into a heating furnace for heating, feeding the heated blank into a roller press through a slide way, rolling into a cylinder with spherical structures at two ends, molding the spherical structure into a cake shape, performing hole pressing treatment on the center of the cake shape after one-time mold pressing, finally pressing into a U-shaped structure through a three-time mold press, feeding the obtained U-shaped body into a pickling tank for pickling treatment, performing hot galvanizing treatment in a hot galvanizing furnace after pickling, and drying to obtain a finished product.
The above prior art solutions have the following drawbacks: the processing steps of the whole production process are too complex, a large amount of high-precision mechanical equipment is needed in the process, the production efficiency is not high, and the utilization rate of raw materials and the product precision are low. Therefore, it is necessary to design and develop a manufacturing process of the U-shaped ring.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a manufacturing process of a U-shaped ring, which obviously improves the production efficiency and the utilization rate of raw materials and improves various mechanical strengths of products.
The above object of the present invention is achieved by the following technical solutions:
a manufacturing process of a U-shaped ring comprises the following specific process steps:
s1, selecting a long rod-shaped raw material to perform material breaking treatment, wherein the length of a single rod piece after material breaking is 20-30 cm, and the diameter of the single rod piece is 1-3 cm;
s2, arranging the rod pieces in parallel in a furnace chamber of a high-frequency heating furnace, and heating one end of each rod piece at 1100-1200 ℃ for 5-7 min;
s3, upsetting and forming the heated end part of the rod by using an upsetting machine, wherein the upsetting and forming treatment is carried out twice, the first upsetting is carried out until the length of the end part is 70-80% of the original length, and the second upsetting is carried out until the length of the end part is 50-60%;
s4, flattening the end part of the rod piece after rough pressing by using a friction press, wherein the flattened end part of the rod piece is in a round cake shape, and cutting off redundant flash at the end part;
s5, repeating the steps S2-S4 to finish the same processing procedure of the other end part of the rod piece, so that the two end parts of the rod piece are both in a round cake shape;
s6, punching the center positions of the two end parts of the rod piece by adopting punching equipment, respectively punching lug holes on the two end parts of the rod piece, and then carrying out hot bending forming on the rod piece into a U-shaped shape by a punch press to obtain a U-shaped ring blank, wherein the lug holes on the two end parts are opposite;
s7, performing shot blasting treatment on the blank of the U-shaped ring by using a shot blasting machine for 15-25 min, and polishing edges or burrs of the U-shaped ring;
s8, immersing the polished U-shaped ring into a zinc plating bath filled with molten zinc, forming a zinc plating layer on the surface of the U-shaped ring, and air cooling until the zinc plating layer is completely solidified on the surface of the U-shaped ring;
and S9, finally, assembling the lug holes at the two ends of the U-shaped ring with the locking bolts, and packaging after the assembly is finished.
By adopting the technical scheme, the specific process steps of the manufacturing process are as follows: the method comprises the steps of firstly carrying out material breaking treatment on raw materials to obtain a single rod piece, respectively carrying out heating, upsetting forming and flattening treatment on two end parts of the rod piece, and then carrying out punching, hot bending forming treatment, shot blasting treatment, polishing treatment and galvanizing treatment on the rod piece. The two end parts of the rod piece are respectively subjected to heating and upsetting forming treatment, so that the structural organization of the rod piece is not influenced, and the rejection rate of products is reduced; in addition, earlier punch a hole to the both ends of member and handle, carry out the hot-bending shaping to the member again, guaranteed the alignment degree in two hangers holes on the one hand, on the other hand avoids the crookedness and the mechanical strength of the hole pair member to cause harmful effects to improve the whole mechanical properties of U type ring, each item performance parameter of U type ring is effectively guaranteed, is applicable to the mass production of U type ring, comprehensively realizes production energy saving and consumption reduction.
The present invention in a preferred example may be further configured to: after the step S4 is completed, the process proceeds to step S5, and product or manufacturer information is printed on the surface of the rod member by using the stamping die.
By adopting the technical scheme, product or manufacturer information is stamped on the surface of the U-shaped ring, so that various information can be conveniently determined in the subsequent assembling and using processes.
The present invention in a preferred example may be further configured to: the thickness of the end part of the rod piece in the step S4 is 1-2 cm, and the diameter is 4-5 cm.
Through adopting above-mentioned technical scheme, the thickness of the tip of member is 1 ~ 2cm, and the diameter is 4 ~ 5cm, has guaranteed the mechanical strength of member tip on the one hand, and on the other hand is convenient for it and locking bolt assembly.
The present invention in a preferred example may be further configured to: and the heating temperature of the hot bending forming in the step S6 is 850-950 ℃.
Through adopting above-mentioned technical scheme, carry out heat treatment to the member of U type ring to the hot bending shaping processing is carried out to the epilogue, can not influence the mechanical properties of U type ring simultaneously.
The present invention in a preferred example may be further configured to: and in the step S6, the aperture of the ear hanging holes on the two end parts of the rod is 2-3 cm.
Through adopting above-mentioned technical scheme, the hangers hole aperture on the member tip is 2 ~ 3cm, is convenient for and locking bolt's diameter phase-match.
The present invention in a preferred example may be further configured to: the pier head machine in the step S3 comprises two pier thick sleeves which are arranged side by side, horn holes with different apertures are formed in the end portions of the two pier thick sleeves respectively, and the aperture of the pier thick sleeve used for the first pier pressing is smaller than that of the pier thick sleeve used for the second pier pressing.
Through adopting above-mentioned technical scheme, adopt the less thick sleeve of mound in aperture to carry out preliminary mound thick processing to the tip of member in the mound pressure for the first time, adopt the great thick sleeve of mound in aperture to carry out further mound thick processing to the tip of member in the mound pressure for the second time.
The present invention in a preferred example may be further configured to: the two upsetting sleeves are driven by a driving mechanism to move up and down and back and forth, and move up and down to adjust one of the upsetting sleeves to be right opposite to the end part of the rod piece and move back and forth to enable one of the upsetting sleeves to be pressed on the end part of the rod piece.
Through adopting above-mentioned technical scheme, reciprocating motion about two mound thick sleeves do to realize that pier head machine carries out mound pressure, the second time in turn to the tip of member and presses, reciprocating motion around two mound thick sleeves do, the end of member is pressed to mound to the mound thick sleeve of realization pier head machine.
The present invention in a preferred example may be further configured to: the U-shaped ring comprises a rod piece and two cake-shaped end parts, and a slope surface is arranged at the joint between the rod piece and the end parts.
Through adopting above-mentioned technical scheme, the junction is the slope between member and the tip, has guaranteed the joint strength between member and the tip on the one hand, and on the other hand reduces the manufacturing cost of product.
In summary, the invention includes at least one of the following beneficial technical effects:
1. the specific process steps of the manufacturing process of the invention are as follows: the method comprises the steps of firstly carrying out material breaking treatment on raw materials to obtain a single rod piece, respectively carrying out heating, upsetting forming and flattening treatment on two end parts of the rod piece, and then carrying out punching, hot bending forming treatment, shot blasting treatment, polishing treatment and galvanizing treatment on the rod piece. The two end parts of the rod piece are respectively subjected to heating and upsetting forming treatment, so that the structure of the rod piece is not affected, and the rejection rate of products is reduced; in addition, the two ends of the rod piece are punched firstly, and then the rod piece is subjected to hot bending forming, so that on one hand, the alignment degree of the two lug holes is ensured, and on the other hand, the adverse effects of the punched holes on the bending degree and the mechanical strength of the rod piece are avoided, so that the overall mechanical performance of the U-shaped ring is improved, various performance parameters of the U-shaped ring are effectively ensured, the U-shaped ring is suitable for mass production of the U-shaped ring, and the energy conservation and consumption reduction in production are comprehensively realized;
2. in the invention, the first upsetting sleeve with smaller aperture is adopted to perform primary upsetting treatment on the end part of the rod piece in the first upsetting, and the second upsetting sleeve with larger aperture is adopted to perform further upsetting treatment on the end part of the rod piece in the second upsetting. Reciprocating motion about two mound thick sleeves do to realize that pier head machine carries out mound pressure, the second time in turn to the tip of member and presses for the first time, reciprocating motion around two mound thick sleeves do, the upset sleeve that realizes pier head machine carries out mound pressure to the tip of member and handles.
Drawings
FIG. 1 is a process flow diagram of the present invention.
FIG. 2 is a schematic view of a U-shaped ring structure of the present invention.
Reference numerals: 1. a U-shaped ring; 11. a rod member; 12. an end portion; 13. ear hanging holes; 14. a slope surface; 2. and locking the bolt.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1, the manufacturing process of a U-shaped ring disclosed by the invention comprises the following specific process steps:
s1, selecting a long rod-shaped raw material to perform material breaking treatment, wherein the length of each broken rod piece 11 is 20-30 cm, and the diameter of each broken rod piece is 1-3 cm;
s2, arranging the rod pieces 11 in parallel in a furnace chamber of a high-frequency heating furnace, and heating one end part 12 of each rod piece 11 at 1100-1200 ℃ for 5-7 min;
s3, upsetting forming treatment is carried out on the end part 12 of the rod 11 after being heated by a upsetting machine, wherein the upsetting forming treatment is carried out twice, the first upsetting is carried out until the length of the end part 12 is 70-80% of the original length, and the second upsetting is carried out until the length of the end part 12 is 50-60%;
s4, flattening the end part 12 of the rod piece 11 after rough pressing by using a friction press, wherein the flattened end part 12 of the rod piece 11 is in a round cake shape, redundant flash at the end part 12 is cut off, the thickness of the end part 12 of the rod piece 11 is 1-2 cm, and the diameter of the end part 12 of the rod piece 11 is 4-5 cm;
after the step S4 is completed and before the step S5 is performed, a stamping process is performed, and product or manufacturer information is stamped on the surface of the rod member 11 by using a stamping die;
s5, repeating the steps S2-S4 to finish the same processing procedure of the other end 12 of the rod piece 11, so that the two end parts 12 of the rod piece 11 are both in a round cake shape;
s6, punching the central positions of the two end parts 12 of the rod piece 11 by adopting punching equipment, respectively punching lug holes 13 on the two end parts 12 of the rod piece 11, wherein the aperture of each lug hole 13 is 2-3 cm, then carrying out hot bending molding on the rod piece 11 by a punch press to form a U shape, wherein the heating temperature of the hot bending molding is 850-950 ℃, so as to prepare a blank of the U-shaped ring 1, and the lug holes 13 on the two end parts 12 are opposite;
s7, performing shot blasting treatment on the blank of the U-shaped ring 1 by using a shot blasting machine for 15-25 min, and polishing edges or burrs of the U-shaped ring 1;
s8, immersing the polished U-shaped ring 1 into a zinc plating bath filled with molten zinc, forming a zinc plating layer on the surface of the U-shaped ring 1, and air cooling until the zinc plating layer is completely solidified on the surface of the U-shaped ring 1;
and S9, finally, assembling the lug holes 13 at the two ends of the U-shaped ring 1 with the locking bolts 2, and packaging after the assembly is finished.
Wherein, pier head machine includes two thick sleeves of mound of juxtaposition range in step S3, and the horn hole that the aperture is different is seted up respectively to two thick sleeve 'S of mound tip 12, and the thick sleeve' S of mound of adopting of mound pressure for the first time aperture is less than the thick sleeve of mound pressure adoption for the second time. The two upsetting sleeves are driven by a driving mechanism to move up and down and back and forth, and move up and down to adjust one of the upsetting sleeves to be right opposite to the end part 12 of the rod piece 11 and move back and forth to enable one of the upsetting sleeves to be pressed on the end part 12 of the rod piece 11.
Referring to figure 2, the U-ring 1 comprises a stem 11, two pie shaped ends 12, the junction between the stem 11 and the ends 12 having a ramp surface 14. The opposite lug holes 13 are respectively formed in the two cake-shaped end portions 12, the locking bolt 2 penetrates through the lug holes 13 in the two end portions 12 of the U-shaped ring 1, the head of the locking bolt 2 abuts against one end portion 12 of the U-shaped ring 1, the other end of the locking bolt 2 is in threaded connection with a nut, and the nut abuts against the other end portion 12 of the U-shaped ring 1.
The implementation principle of the embodiment is as follows: the specific process steps of the manufacturing process of the embodiment are as follows: the method comprises the steps of firstly performing material breaking treatment on raw materials to obtain a single rod piece 11, respectively performing heating, upsetting forming and flattening treatment on two end parts 12 of the rod piece 11, and then performing punching, hot bending forming treatment, shot blasting treatment, polishing treatment and galvanizing treatment on the rod piece 11. The two end parts 12 of the rod piece 11 are respectively heated and roughened to form, so that the structure of the rod piece 11 is not affected, and the product rejection rate is reduced. Adopt the less thick sleeve of mound in aperture to carry out preliminary mound thick processing to the tip 12 of member 11 in the mound is pressed for the first time, adopt the great thick sleeve of mound in aperture to carry out further mound thick processing to the tip 12 of member 11 in the mound is pressed for the second time. The two upsetting sleeves move up and down in a reciprocating mode to realize that the upsetting machine alternately performs primary upsetting and secondary upsetting on the end portion 12 of the rod piece 11, and the two upsetting sleeves move back and forth to realize that the upsetting sleeves of the upsetting machine perform upsetting treatment on the end portion 12 of the rod piece 11.
The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.
Claims (8)
1. A manufacturing process of a U-shaped ring is characterized in that: the specific process steps of the manufacturing process are as follows:
s1, selecting a long rod-shaped raw material to perform material breaking treatment, wherein the length of a single rod piece (11) after material breaking is 20-30 cm, and the diameter of the single rod piece is 1-3 cm;
s2, arranging the rod pieces (11) in parallel in a furnace chamber of a high-frequency heating furnace, and heating one end part (12) of each rod piece (11) at 1100-1200 ℃ for 5-7 min;
s3, upsetting forming treatment is carried out on the end part (12) of the rod piece (11) after heating by using an upsetting machine, wherein the upsetting forming treatment is carried out twice, the first upsetting is carried out until the length of the end part (12) is 70-80%, and the second upsetting is carried out until the length of the end part (12) is 50-60%;
s4, flattening the end part (12) of the rod piece (11) after rough pressing by using a friction press, wherein the flattened end part (12) of the rod piece (11) is in a round cake shape, and redundant flash of the end part (12) is cut off;
s5, repeating the steps S2-S4 to finish the same processing procedure of the other end (12) of the rod piece (11), so that the two end parts (12) of the rod piece (11) are both in a round cake shape;
s6, punching the center positions of two end parts (12) of the rod piece (11) by adopting punching equipment, respectively punching lug holes (13) on the two end parts (12) of the rod piece (11), and then carrying out hot bending molding on the rod piece (11) into a U shape by a punch press to obtain a blank of the U-shaped ring (1), wherein the lug holes (13) on the two end parts (12) are opposite;
s7, performing shot blasting treatment on the blank of the U-shaped ring (1) by using a shot blasting machine for 15-25 min, and polishing edges or burrs of the U-shaped ring (1);
s8, immersing the polished U-shaped ring (1) into a galvanizing bath filled with molten zinc, forming a galvanizing coat on the surface of the U-shaped ring (1), and air-cooling until the galvanizing coat is completely solidified on the surface of the U-shaped ring (1);
and S9, finally, assembling the lug holes (13) at the two ends of the U-shaped ring (1) with the locking bolts (2), and packaging after the assembly is finished.
2. A process for manufacturing a U-ring according to claim 1, characterized in that: after the step S4 is completed, the process proceeds to step S5, and product or manufacturer information is printed on the surface of the bar member (11) by using the stamping die.
3. A process for manufacturing a U-ring according to claim 1, characterized in that: in the step S4, the thickness of the end part (12) of the rod piece (11) is 1-2 cm, and the diameter is 4-5 cm.
4. A process for manufacturing a U-ring according to claim 1, characterized in that: and the heating temperature of the hot bending forming in the step S6 is 850-950 ℃.
5. A process for manufacturing a U-ring according to claim 1, characterized in that: in the step S6, the diameters of the ear hanging holes (13) on the two end parts (12) of the rod piece (11) are 2-3 cm.
6. A process for manufacturing a U-ring according to claim 1, characterized in that: the pier head machine in the step S3 comprises two pier thick sleeves which are arranged side by side, horn holes with different apertures are formed in end portions (12) of the two pier thick sleeves respectively, and the aperture of the pier thick sleeve used for the first pier pressing is smaller than that of the pier thick sleeve used for the second pier pressing.
7. The process of manufacturing a U-ring of claim 6, wherein: the two upsetting sleeves are driven by a driving mechanism to move up and down and back and forth, and move up and down to adjust one of the upsetting sleeves to be right opposite to the end (12) of the rod piece (11), and move back and forth to enable one of the upsetting sleeves to be pressed on the end (12) of the rod piece (11).
8. The process for manufacturing a U-shaped ring according to claims 1 to 7, wherein: the U-shaped ring (1) comprises a rod piece (11) and two cake-shaped end parts (12), wherein a slope surface (14) is arranged at the joint between the rod piece (11) and the end parts (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010374382.XA CN111496162A (en) | 2020-05-06 | 2020-05-06 | Manufacturing process of U-shaped ring |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010374382.XA CN111496162A (en) | 2020-05-06 | 2020-05-06 | Manufacturing process of U-shaped ring |
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| CN111496162A true CN111496162A (en) | 2020-08-07 |
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| CN202010374382.XA Pending CN111496162A (en) | 2020-05-06 | 2020-05-06 | Manufacturing process of U-shaped ring |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114346595A (en) * | 2021-12-15 | 2022-04-15 | 江门市新会区浩潮五金制品有限公司 | Processing method of streamline handle |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114346595A (en) * | 2021-12-15 | 2022-04-15 | 江门市新会区浩潮五金制品有限公司 | Processing method of streamline handle |
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Application publication date: 20200807 |