CN113020757A - Forging and welding formed hinge beam of cubic press and preparation method thereof - Google Patents
Forging and welding formed hinge beam of cubic press and preparation method thereof Download PDFInfo
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- CN113020757A CN113020757A CN202110436738.2A CN202110436738A CN113020757A CN 113020757 A CN113020757 A CN 113020757A CN 202110436738 A CN202110436738 A CN 202110436738A CN 113020757 A CN113020757 A CN 113020757A
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- lug
- welding
- forging
- lugs
- cylinder
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- 238000003466 welding Methods 0.000 title claims abstract description 50
- 238000005242 forging Methods 0.000 title claims abstract description 26
- 238000002360 preparation method Methods 0.000 title abstract description 7
- 238000004519 manufacturing process Methods 0.000 claims abstract description 4
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 10
- 229910000851 Alloy steel Inorganic materials 0.000 claims description 9
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 6
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 6
- 239000001569 carbon dioxide Substances 0.000 claims description 6
- 239000007789 gas Substances 0.000 claims description 6
- 230000005674 electromagnetic induction Effects 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 5
- 229910052786 argon Inorganic materials 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims description 2
- 238000007789 sealing Methods 0.000 abstract 1
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 210000005069 ears Anatomy 0.000 description 3
- 229920002994 synthetic fiber Polymers 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/16—Arc welding or cutting making use of shielding gas
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/32—Accessories
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Laser Beam Processing (AREA)
Abstract
The invention discloses a forging welding forming hinge beam of a cubic press and a preparation method thereof, the hinge beam is formed by welding a beam cylinder body and an ear piece, the beam cylinder body and the ear piece are separately forged, and the outer wall of the beam cylinder body is of an eight-prism structure, so that the ear piece can be blanked at the same height, and the processing difficulty is reduced; after the forged beam barrel and the lug are welded, the welding and sealing bearing capacity is symmetrical and consistent due to the adoption of the completely symmetrical K-shaped welding grooves, the beam barrel and the lug can be welded into a whole during welding, the problem of welding gaps can be avoided, the integral mechanical performance of the hinge beam is ensured, and the deformation of the lug is small. The invention has simple manufacturing process and enhanced integral mechanical property.
Description
Technical Field
The invention relates to the technical field of hinge beams, in particular to a hinge beam formed by forging and welding of a cubic press and a preparation method thereof.
Background
The cubic apparatus press utilizes the working principle of cubic apparatus, and utilizes hydraulic pressure to synchronously push six hard alloy anvil hammers to extrude the synthetic material to generate high pressure, and utilizes low-voltage high-power current to heat the synthetic material to generate high temperature, so that the internal tissue of the synthetic material is changed in quality to form a new superhard material.
At present, a hinge beam of a cubic press is generally formed by pouring molten steel, and has the defects of heavy weight and low steel utilization rate, and the bearing capacity requirement of the hinge beam is higher and higher along with the continuous expansion of a synthetic cavity of the cubic press, and the hinge beam poured by the molten steel cannot meet the requirement; for the poured hinge beam, a working cylinder needs to be installed in a cavity of the hinge beam, mainly because the casting density and the precision can not meet the requirements of the working cylinder, and the forged hinge beam can be directly forged into the working cylinder meeting the requirements in the hinge beam.
At present, some hinge beams which are forged and formed are integrally forged in the market, and the integral structure of the hinge beam is large, so that the machining process is troublesome during integral forging, and the process is complex; some of the welded beam cylinders are formed by welding forged beam cylinders and forged lugs, welding grooves need to be processed at the tail ends of the lugs so as to weld the lugs outside the beam cylinders, however, the outer parts of the existing beam cylinders are cylindrical, the shapes of the welding grooves at the tail ends of the lugs are not uniform, and the heights of the lugs are different, so that the processing difficulty and the welding difficulty are increased; in addition, the shape of the welding groove has a great influence on the overall performance of the welded hinge beam, and the Chinese patent application No. CN201210056685.2 discloses a hinge beam of a cubic press and a manufacturing method thereof. The lug end is connected with the cylinder body through the ridge and the groove, and then welding is carried out, however, due to the ridge and the groove, a welding gap easily exists between the ridge and the groove during welding, and therefore the mechanical strength of the whole hinge beam is affected.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provides a forging and welding formed hinge beam of a cubic press and a preparation method thereof.
In order to achieve the purpose, the invention is implemented according to the following technical scheme:
the invention provides a hinge beam formed by forging and welding of a cubic press, which comprises a beam barrel formed by forging and a plurality of lug plates formed by forging, wherein the lug plates are provided with fixing part connecting holes; the outer wall of the beam cylinder body is of an eight-prism structure, any group of opposite surfaces of the eight-prism structure are parallel to each other and have the same width, each lug comprises a first lug and a second lug, the heights of the first lug and the second lug are the same, two first lugs and one second lug are vertically arranged on the group of opposite surfaces with the larger width respectively, the second lug is positioned between the two first lugs, and the distance between the first lug and the second lug is larger than the thickness of the second lug; two second lugs are respectively and vertically arranged on a group of opposite surfaces which are mutually perpendicular to the group of opposite surfaces with larger width, and the distance between the two second lugs is larger than the thickness of the second lugs; the tail ends of the first lug and the second lug are provided with symmetrical K-shaped grooves, and the tail ends of the first lug and the second lug are welded with the outer wall of the beam cylinder body into a whole.
Further, the thickness of the second ear is greater than the thickness of the first ear.
Further, the distance between the first ear and the second ear and the distance between the two second ears are both 10-15mm greater than the thickness of the second ears.
Furthermore, a cylinder cavity is forged at the top end of the beam cylinder body, and an oil channel is formed in the center of the bottom of the cylinder cavity.
Furthermore, the beam cylinder and the lug are both forged by using 30CrMo alloy steel materials.
The second purpose of the invention is to provide a preparation method of a hinge beam formed by forging and welding of a cubic press, which comprises the following steps:
s1, respectively forging the beam cylinder and the lug by using a 30CrMo alloy steel material; a cylinder cavity is forged at the top end of the beam cylinder body, and an oil channel is formed in the center of the bottom of the cylinder cavity; the lug is provided with a fixing piece connecting hole, and symmetrical K-shaped grooves are processed at the tail end of the lug;
s2, fixing the beam cylinder, positioning the lugs, and preheating the beam cylinder and the lugs to 260 ℃ at 220-;
s3, then carrying out carbon dioxide gas shielded arc welding on four surfaces of the beam cylinder, wherein the welding parameters are as follows: adopting a welding wire made of 30CrMo alloy steel material, and carrying out shielded welding under the mixed gas of 80% argon and 20% carbon dioxide, so that the tail end of the lug is welded with the outer wall of the beam cylinder into a whole through a K-shaped groove;
and S4, after welding, keeping the temperature at 150 ℃ for 2 hours, and then slowly cooling to the normal temperature along with the furnace.
As a further preferable scheme of the present invention, in step S2, the beam tube and the tab are preheated by using a medium frequency electromagnetic induction heating system, and the beam tube and the tab are continuously heated and welded while being kept at a constant temperature.
Compared with the prior art, the beam cylinder body and the lug plates are separately forged, and the outer wall of the beam cylinder body is of an octagonal prism structure, so that the lug plates can be blanked at the same height, and the processing difficulty is reduced; after the forged beam barrel and the lug are welded, the completely symmetrical K-shaped welding grooves are adopted, so that the bearing capacity of each lug welding seal is symmetrical and consistent, the beam barrel and the lug can be welded into a whole during welding, the problem of welding gaps can be avoided, the overall mechanical performance of the hinge beam is ensured, and the deformation of the lug is small. The invention has simple manufacturing process and enhanced integral mechanical property.
Drawings
Fig. 1 is a front view of the present invention.
Fig. 2 is a rear view of the present invention.
Fig. 3 is a cross-sectional view of fig. 1.
Fig. 4 is a schematic view of a second tab structure of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. The specific embodiments described herein are merely illustrative of the invention and do not limit the invention.
As shown in fig. 1-4, the hinge beam formed by forging and welding of the cubic press according to the present embodiment includes a beam cylinder 1 formed by forging and a plurality of lug plates formed by forging, the lug plates are provided with fixing member connecting holes 5, a cylinder cavity 2 is forged at the top end of the beam cylinder 1, and an oil channel 3 is formed at the center of the bottom of the cylinder cavity 2; the outer wall of the beam cylinder body 1 is of an eight-prism structure, any group of opposite surfaces of the eight-prism structure are parallel to each other and have the same width, the lug plates comprise a first lug plate 4 and a second lug plate 6, the thickness of the second lug plate 6 is larger than that of the first lug plate 4, and each surface of the outer wall of the beam cylinder body 1, which is of the eight-prism structure, is a plane so that the lug plates can be conveniently welded, so that the first lug plate 4 and the second lug plate 6 can have the same height during blanking, and the processing difficulty and the welding difficulty are reduced; two first lugs 4 and one second lug 6 are respectively vertically arranged on a group of opposite surfaces with larger width, the second lug 6 is positioned between the two first lugs 4, and the distance between the first lugs 4 and the second lug 6 is 10-15mm larger than the thickness of the second lug 6; two second lug plates 6 are respectively and vertically arranged on a group of opposite surfaces which are mutually vertical to the group of opposite surfaces with larger width, and the distance between the two second lug plates 6 is 10-15mm larger than the thickness of the second lug plates 6; as shown in fig. 1 and 2, the two sets of ears are perpendicular to each other; the tail ends of the first lug plate 4 and the second lug plate 6 are respectively provided with a K-shaped groove 7, and the tail ends of the first lug plate 4 and the second lug plate 6 are welded with the outer wall of the beam barrel 1 into a whole.
When the hinge beam formed by forging and welding of the cubic press is prepared, the concrete steps are as follows:
respectively forging the beam cylinder body 1, the first lug 4 and the second lug 6 by using a 30CrMo alloy steel material; the first lug 4 and the second lug 6 are consistent in length, a cylinder cavity 2 is forged at the top end of the beam cylinder body 1, and an oil channel 3 is formed in the center of the bottom of the cylinder cavity 2; fixing piece connecting holes 5 are formed in the first lug piece 4 and the second lug piece 6, and K-shaped grooves 7 are formed in the tail ends of the first lug piece 4 and the second lug piece 6;
fixing the beam cylinder 1, positioning the first lug 4 and the second lug 6, and then preheating the beam cylinder 1 and the lugs to the temperature of 220-260 ℃ by adopting a medium-frequency electromagnetic induction heating system; the medium-frequency electromagnetic induction heating system in the embodiment can be purchased in the market directly, and the specific structure and functional parameters of the medium-frequency electromagnetic induction heating system are not described in detail in the embodiment;
then, carbon dioxide gas shielded arc welding is carried out on four surfaces of the beam cylinder 1, and the welding parameters are as follows: adopting a welding wire made of 30CrMo alloy steel material, and carrying out shielded welding under the mixed gas of 80% argon and 20% carbon dioxide, so that the tail end of the lug is welded with the outer wall of the beam barrel body 1 into a whole through the welding wire;
after welding, the temperature is kept for 2 hours at 150 ℃, and then the steel plate is slowly cooled to the normal temperature along with the furnace.
According to the hinge beam prepared by the preparation process, as the beam cylinder body 1 and the lugs are made of 30CrMo alloy steel materials, after the lugs and the outer wall of the beam cylinder body 1 are welded into a whole, the yield strength of the lugs can reach 833N/mm which is the same as that of the beam cylinder body 1 to the maximum extent2The overall mechanical properties of the entire hinge beam are enhanced.
The technical solution of the present invention is not limited to the limitations of the above specific embodiments, and all technical modifications made according to the technical solution of the present invention fall within the protection scope of the present invention.
Claims (7)
1. A hinge beam formed by forging and welding of a cubic press comprises a beam barrel body formed by forging and a plurality of lug pieces formed by forging, wherein the lug pieces are provided with fixing piece connecting holes; the method is characterized in that: the outer wall of the beam cylinder body is of an eight-prism structure, any group of opposite surfaces of the eight-prism structure are parallel to each other and have the same width, each lug comprises a first lug and a second lug, the heights of the first lug and the second lug are the same, two first lugs and one second lug are vertically arranged on the group of opposite surfaces with the larger width respectively, the second lug is positioned between the two first lugs, and the distance between the first lug and the second lug is larger than the thickness of the second lug; two second lugs are respectively and vertically arranged on a group of opposite surfaces which are mutually perpendicular to the group of opposite surfaces with larger width, and the distance between the two second lugs is larger than the thickness of the second lugs; the tail ends of the first lug and the second lug are provided with symmetrical K-shaped grooves, and the tail ends of the first lug and the second lug are welded with the outer wall of the beam cylinder body into a whole.
2. The hinge beam formed by forging and welding of the cubic press as set forth in claim 1, wherein: the thickness of the second ear is greater than the thickness of the first ear.
3. The hinge beam formed by forging and welding of the cubic press as set forth in claim 1, wherein: the distance between the first ear plate and the second ear plate and the distance between the two second ear plates are both 10-15mm larger than the thickness of the second ear plates.
4. The hinge beam formed by forging and welding of the cubic press as set forth in claim 1, wherein: a cylinder cavity is forged at the top end of the beam cylinder body, and an oil channel is formed in the center of the bottom of the cylinder cavity.
5. The hinge beam formed by forging and welding of the cubic press as set forth in claim 1, wherein: the beam cylinder body and the lug are both forged by 30CrMo alloy steel materials.
6. A method for manufacturing a hinge beam formed by forging and welding of a cubic press as claimed in any one of claims 1 to 5, comprising the steps of:
s1, respectively forging the beam cylinder and the lug by using a 30CrMo alloy steel material; a cylinder cavity is forged at the top end of the beam cylinder body, and an oil channel is formed in the center of the bottom of the cylinder cavity; the lug is provided with a fixing piece connecting hole, and the tail end of the lug is provided with a K-shaped groove;
s2, fixing the beam cylinder, positioning the lugs, and preheating the beam cylinder and the lugs to 260 ℃ at 220-;
s3, simultaneously carrying out carbon dioxide gas shielded arc welding on four surfaces of the beam cylinder, wherein the welding parameters are as follows: adopting a welding wire made of 30CrMo alloy steel material, and carrying out shielded welding under the mixed gas of 80% argon and 20% carbon dioxide, so that the tail end of the lug is welded with the outer wall of the beam cylinder into a whole through a K-shaped groove;
and S4, after welding, keeping the temperature at 150 ℃ for 2 hours, and then slowly cooling to the normal temperature along with the furnace.
7. The method for preparing the hinge beam formed by forging and welding the cubic press according to claim 1, wherein the method comprises the following steps: in the step S2, the beam cylinder and the tab are preheated by using a medium frequency electromagnetic induction heating system, and the beam cylinder and the tab are continuously heated and welded under a constant temperature condition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110436738.2A CN113020757A (en) | 2021-04-22 | 2021-04-22 | Forging and welding formed hinge beam of cubic press and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110436738.2A CN113020757A (en) | 2021-04-22 | 2021-04-22 | Forging and welding formed hinge beam of cubic press and preparation method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN113020757A true CN113020757A (en) | 2021-06-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110436738.2A Pending CN113020757A (en) | 2021-04-22 | 2021-04-22 | Forging and welding formed hinge beam of cubic press and preparation method thereof |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101368220A (en) * | 2008-09-04 | 2009-02-18 | 宝山钢铁股份有限公司 | Novel structured metallurgy cinder ladle and method of producing the same |
| CN102580619A (en) * | 2012-03-06 | 2012-07-18 | 河南飞孟金刚石工业有限公司 | Hinge sleeve for cubic presses and manufacturing method thereof |
| CN103007828A (en) * | 2012-12-28 | 2013-04-03 | 桂林桂冶重工股份有限公司 | Forge welding structure hinge beam for cubic hydraulic machine |
| CN104999162A (en) * | 2015-07-31 | 2015-10-28 | 河南黄河旋风股份有限公司 | Welding method of hinge beam |
| CN214518109U (en) * | 2021-04-22 | 2021-10-29 | 焦作天宝桓祥机械科技有限公司 | Forging and welding forming hinge beam of cubic apparatus press |
-
2021
- 2021-04-22 CN CN202110436738.2A patent/CN113020757A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101368220A (en) * | 2008-09-04 | 2009-02-18 | 宝山钢铁股份有限公司 | Novel structured metallurgy cinder ladle and method of producing the same |
| CN102580619A (en) * | 2012-03-06 | 2012-07-18 | 河南飞孟金刚石工业有限公司 | Hinge sleeve for cubic presses and manufacturing method thereof |
| CN103007828A (en) * | 2012-12-28 | 2013-04-03 | 桂林桂冶重工股份有限公司 | Forge welding structure hinge beam for cubic hydraulic machine |
| CN104999162A (en) * | 2015-07-31 | 2015-10-28 | 河南黄河旋风股份有限公司 | Welding method of hinge beam |
| CN214518109U (en) * | 2021-04-22 | 2021-10-29 | 焦作天宝桓祥机械科技有限公司 | Forging and welding forming hinge beam of cubic apparatus press |
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