CN117287571A - High-tensile flange plate, stamping process and stamping equipment thereof - Google Patents
High-tensile flange plate, stamping process and stamping equipment thereof Download PDFInfo
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- CN117287571A CN117287571A CN202311585393.2A CN202311585393A CN117287571A CN 117287571 A CN117287571 A CN 117287571A CN 202311585393 A CN202311585393 A CN 202311585393A CN 117287571 A CN117287571 A CN 117287571A
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- flange
- stamping
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- cooling
- boss
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- 238000000034 method Methods 0.000 title claims abstract description 29
- 238000007789 sealing Methods 0.000 claims abstract description 18
- 238000010438 heat treatment Methods 0.000 claims description 84
- 238000001816 cooling Methods 0.000 claims description 42
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 40
- 239000000498 cooling water Substances 0.000 claims description 31
- 238000007493 shaping process Methods 0.000 claims description 28
- 239000000463 material Substances 0.000 claims description 14
- 238000004891 communication Methods 0.000 claims description 13
- 238000009434 installation Methods 0.000 claims description 10
- 238000004080 punching Methods 0.000 claims description 9
- 239000007921 spray Substances 0.000 claims description 8
- 238000005242 forging Methods 0.000 claims description 7
- 238000005498 polishing Methods 0.000 claims description 7
- 238000005520 cutting process Methods 0.000 claims description 6
- 239000012535 impurity Substances 0.000 claims description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 238000005422 blasting Methods 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 claims description 3
- 230000005674 electromagnetic induction Effects 0.000 claims description 3
- 239000000446 fuel Substances 0.000 claims description 3
- 238000004806 packaging method and process Methods 0.000 claims description 3
- 230000003746 surface roughness Effects 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 2
- 239000010949 copper Substances 0.000 claims description 2
- 238000003698 laser cutting Methods 0.000 claims description 2
- 239000002994 raw material Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 description 15
- 238000004519 manufacturing process Methods 0.000 description 9
- 238000010791 quenching Methods 0.000 description 6
- 238000004321 preservation Methods 0.000 description 4
- 230000000171 quenching effect Effects 0.000 description 4
- 239000007788 liquid Substances 0.000 description 3
- 229910000734 martensite Inorganic materials 0.000 description 3
- 230000009466 transformation Effects 0.000 description 3
- 238000007599 discharging Methods 0.000 description 2
- 239000003651 drinking water Substances 0.000 description 2
- 235000020188 drinking water Nutrition 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229920001821 foam rubber Polymers 0.000 description 2
- 229910001566 austenite Inorganic materials 0.000 description 1
- 238000010009 beating Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000110 cooling liquid Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 201000009240 nasopharyngitis Diseases 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
- B21D22/02—Stamping using rigid devices or tools
- B21D22/022—Stamping using rigid devices or tools by heating the blank or stamping associated with heat treatment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/16—Heating or cooling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
- B21K1/00—Making machine elements
- B21K1/28—Making machine elements wheels; discs
- B21K1/32—Making machine elements wheels; discs discs, e.g. disc wheels
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L23/00—Flanged joints
- F16L23/02—Flanged joints the flanges being connected by members tensioned axially
- F16L23/032—Flanged joints the flanges being connected by members tensioned axially characterised by the shape or composition of the flanges
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
Abstract
The invention relates to the technical field of flanges, in particular to a high-tensile flange which comprises a flange body, wherein the flange body is annular, a central hole is formed in the center of the flange body, a plurality of mounting holes are uniformly formed in the flange body and penetrate through the wall of the flange body, a plurality of counter bores are formed in the flange body at the positions of the mounting holes, and one mounting hole is opposite to one counter bore; one surface of the flange plate body is provided with a boss, a sealing groove is formed on the boss, and a mounting notch is formed on the boss and located at the sealing groove; the invention also provides a stamping process suitable for the high-tensile flange plate and stamping equipment suitable for the stamping process.
Description
Technical Field
The invention relates to the technical field of flange plates, in particular to a high-tensile flange plate, a stamping process and stamping equipment thereof.
Background
The stamped flange is one of the flanges and is widely used in the mechanical industry for transporting relatively mild media, such as low-pressure non-purified compressed air and low-pressure circulating water. Most of the stamping flanges have simple structure, small volume and light weight, and meanwhile, better sealing performance is required to be suitable for pipelines with greatly fluctuating pressure or temperature or high-temperature, high-pressure and low-temperature pipelines.
Stamping is a particularly important step in the manufacturing process of stamped flanges, which can rapidly process sheet metal into the shape of the flange. Common processing technology comprises hot stamping forming and cold stamping forming, wherein the hot stamping forming is to perform heat treatment on a plate material firstly, then rapidly place the high-temperature plate material on a stamping device, perform stamping processing on the high-temperature plate material by using stamping equipment, and finally quench. The cold stamping forming is to heat treat the plate, forge the high temperature plate, quench the cooling process, and finally stamp the plate cooled to a certain temperature. In the cold stamping process, since the sheet material is extruded and cut in a cooled state, the stress generated by the sheet material is much larger than that of the sheet material in a heated state, and thus the finished product manufactured by the cold stamping process is more likely to generate cracks and fissures, and the cold stamping requires precise stamping equipment. While the hot stamping process has fewer cracks and crazes, the hot stamping process is more focused on temperature control, and in the forming stage, a high-temperature plate needs to be quickly placed into a die of stamping equipment, and the stamping equipment completes part forming before martensitic transformation of the plate occurs; in the quenching and cooling stage, heat of a plate material in the die cavity is continuously transferred to the die, a cooling pipe arranged in the die rapidly takes away the heat through flowing cooling liquid, and when the temperature of a workpiece is reduced to 425 ℃, austenite-martensite transformation starts to occur; and when the temperature reaches 280 ℃, the transformation between austenite and martensite is finished, and when the temperature reaches 200 ℃, the workpiece is taken out, so that the stamping part with the tensile strength reaching more than 1200MPa is obtained.
Therefore, to manufacture a flange with high tensile strength, a suitable hot stamping process and hot stamping equipment are core, which has the capability of rapid stamping and heat preservation, and is also required to be provided with a rapid cooling system, and the technical complexity is far more than that of a common cold stamping machine. Most of the domestic hot stamping equipment at present depends on import and is high in price.
For solving above-mentioned technical problem, chinese patent CN207430991U discloses a stamping forming device for car longeron flange, including mount and stamping flange, one side of mount sets up the power supply piece, the top of mount sets up the recess, two threaded rods of internally mounted of recess, the one end of threaded rod sets up the adjusting bolt, the other end of threaded rod sets up the layer board, the top installation hydraulic pump of layer board, the bottom of layer board sets up the telescopic link, the bottom of telescopic link sets up stamping flange, stamping flange's below sets up the horizontal pole, the bottom of horizontal pole sets up the side shield, the internally mounted heating roller of horizontal pole, the below of horizontal pole is installed and is beaten the mill, the bottom of beating the mill sets up the motor, one side of motor sets up the fan, the below of motor sets up the aqua storage tank, the inside both sides of polishing the dish set up the foam-rubber cushion, the one end of foam-rubber cushion sets up a plurality of delivery port. Through setting up two horizontal poles in the below of punching press flange, the heating roller is all installed to the inboard of horizontal pole, and the heating roller is close to the top of horizontal pole, is the symmetry setting moreover, can play a preheating's effect when placing automobile longitudinal beam on the crossbeam and carrying out the punching press shaping through punching press flange for punching press effect is better, and the grinding dish that punching press flange's below set up moreover can polish processing automobile longitudinal beam, does not fully take shape to the detail when first processing takes shape perfect, makes the shaping effect better. However, the heating roller adopted in the above patent can only heat the two opposite sides of the flange, the heating range is limited, the heating is not uniform enough, and the temperature control effect required by hot stamping cannot be achieved.
Therefore, it is necessary for those skilled in the art to provide a high tensile flange, a stamping process suitable for the high tensile flange, and a stamping device suitable for the stamping process, so as to reduce the processing cost and manufacturing difficulty of the high tensile flange.
Disclosure of Invention
The invention aims to provide a high-tensile flange, a stamping process and stamping equipment thereof, which are used for solving the technical problems of high processing cost, high manufacturing difficulty, severe process requirement for manufacturing the high-tensile flange, complex technology of the stamping equipment and high manufacturing cost of the high-tensile flange in the prior art.
The technical scheme adopted for solving the technical problems is as follows: the flange plate with high tensile strength comprises a flange plate body, wherein the flange plate body is annular, a central hole is formed in the center of the flange plate body, a plurality of mounting holes are uniformly formed in the flange plate body, the mounting holes penetrate through the wall of the flange plate body, a plurality of counter bores are formed in the flange plate body, and one mounting hole is opposite to one counter bore; one surface of the flange plate body is provided with a boss, a sealing groove is formed in the boss, and a mounting notch is formed in the boss, located at the sealing groove.
Stamping process suitable for above-mentioned high tensile ring flange includes S1: cutting a plate on the raw material plate by using a laser cutting machine or a cutting machine, and cutting a central hole to obtain an annular plate; s2: placing the annular plate into a heating furnace for heating, and uniformly heating to 890-940 ℃ at a heating rate of 10-50 ℃/s to obtain a heat-treated plate; s3: forging the heat-treated plate, cooling to 428-512 ℃ at a constant speed at a cooling speed of 20-100 ℃/s, and obtaining a blank after forging; s4: placing the blank into a heating furnace for heating, and uniformly heating to 880-980 ℃ at a heating rate of 20-80 ℃/s to obtain a heat-treated blank; s5: placing a shaping die on the heat treatment blank, stamping the heat treatment blank, and punching a mounting hole, a counter bore, a boss, a sealing groove and a mounting notch to obtain a shaped blank; s6: cooling the molded blank with water, cooling to 150-200 ℃ at a constant speed at a cooling speed of 30-60 ℃/s, then cooling to normal temperature at a cooling speed of 4-8 ℃/s, and obtaining a semi-finished flange; s7: performing shot blasting processing on the semi-finished flange, cleaning oxides and impurities on the surface, and eliminating the stress of the disc body; s8: and polishing the semi-finished flange, wherein the surface roughness is smaller than Ra0.8, and packaging after polishing is finished to obtain the high-tensile flange.
Further, the heating furnace is a fuel heating furnace.
Further, the shaping die is provided with a plurality of shaping dies, and one end outline of the shaping die is respectively consistent with the appearance of the mounting hole, the counter bore, the boss, the sealing groove and the mounting notch.
The stamping equipment suitable for the high tensile flange plate comprises a working platform, wherein a stamping head is arranged above the working platform, a placing support is arranged on the working platform, a flange plate body is installed on the placing support and located below the stamping head, a liquid discharging groove and a mounting boss are arranged on the placing support, a heating coil is sleeved on the mounting boss, the flange plate body is placed on the mounting boss, and the heating coil is sleeved outside the flange plate body.
Further, be equipped with the water tank in the work platform, the water tank intussuseption is filled with cooling water, the installation cavity has been seted up on the work platform upper surface, installation cavity intercommunication the water tank, be equipped with cooling water pump in the installation cavity, cooling water pump one end is equipped with the drinking-water pipe, and the cooling water pump other end is equipped with the shower nozzle, and the drinking-water pipe is located in the water tank, the shower nozzle is just right the ring flange body.
Further, a drain hole is formed in the placing support, the drain groove is formed in the placing support, a communication channel is formed in the working platform, one end of the communication channel faces and is communicated with the drain hole, and the other end of the communication channel is communicated with the water tank.
Further, a center hole positioning column is detachably connected to the center of the upper surface of the placement support, and the center hole positioning column is matched with a center hole in the flange plate body.
Further, the heating coil is a copper ring, and the heating mode of the heating coil is electromagnetic induction heating.
Further, a die support is arranged on the working platform, a shaping die is mounted on the die support, one end of the shaping die is connected to the die support in a matched mode, the other end of the shaping die is placed on the flange plate body, and a part of the shaping die is sleeved on the central hole positioning column.
The beneficial effects of the invention are as follows: the invention provides a stamping process and stamping equipment for manufacturing a flange with high tensile strength, which have the capabilities of rapid stamping and heat preservation and are also provided with a rapid cooling system. The flange plate body is placed on the installation boss, the heating coil is sleeved on the installation boss and located outside the flange plate body, the flange plate body is heated or insulated through the heating coil, the temperature of the flange plate body is guaranteed to be controllable, and the heat treatment effect and the processing quality are improved. And the cooling water pump pumps out and sprays cooling water in the water tank onto the flange body, so that the water-cooling quenching of the flange body is realized, and the continuity and stability of the processing process are ensured. Meanwhile, the cooling water pump and reasonable water circulation arrangement thereof provide stable and rapid cooling effect for the stamping equipment, ensure cooling stability and convenience, improve cooling effect, and further improve heat treatment effect and product processing quality.
Drawings
Fig. 1 is a perspective view of a high tensile flange of the present invention.
Fig. 2 is a flow chart of the stamping process of the present invention.
Fig. 3 is a perspective view of the press apparatus of the present invention.
Fig. 4 is a front view of the press apparatus of the present invention.
Fig. 5 is a cross-sectional view of A-A in fig. 4.
Fig. 6 is a cross-sectional view of B-B of fig. 4.
Fig. 7 is an exploded view of the press apparatus of the present invention.
The components in the drawings are marked as follows: 10. a working platform; 11. a cooling water pump; 12. a water tank; 13. a spray head; 14. a mounting cavity; 15. a water pumping pipe; 16. a communication passage; 17. a central hole positioning column; 18. a mold support; 19. punching heads; 20. placing a bracket; 21. a liquid discharge tank; 22. a mounting boss; 23. a drain port; 29. a heating coil; 30. a flange body; 31. a mounting hole; 32. a boss; 33. sealing grooves; 34. a mounting notch; 35. countersink; 36. a central bore.
Detailed Description
The present invention will now be described in detail with reference to the accompanying drawings. The figure is a simplified schematic diagram illustrating the basic structure of the invention only by way of illustration, and therefore it shows only the constitution related to the invention.
Referring to fig. 1, the invention provides a high tensile flange, which comprises a flange body 30, wherein the flange body 30 is annular, a central hole 36 is formed in the center of the flange body 30, a plurality of mounting holes 31 are uniformly formed in the flange body 30, the mounting holes 31 penetrate through the wall of the flange body 30, a plurality of counter bores 35 are formed in the flange body 30 at the positions of the mounting holes 31, and one mounting hole 31 is opposite to one counter bore 35; one surface of the flange plate body 30 is provided with a boss 32, a sealing groove 33 is formed on the boss 32, and a mounting notch 34 is formed on the boss 32 at the sealing groove 33.
Referring to fig. 2, for the above-mentioned high tensile flange, the present invention further provides a stamping process, which includes:
s1: a laser cutter or guillotine is used to cut a sheet of material into the sheet of material and a central aperture 36 is cut to provide an annular sheet.
S2: and (3) placing the annular plate into a heating furnace for heating, and uniformly heating to 890-940 ℃ at a heating rate of 10-50 ℃/s to obtain the heat-treated plate.
S3: and (3) placing the heat treatment plate on stamping equipment, forging the heat treatment plate by using the stamping equipment, cooling to 428-512 ℃ at a constant speed at a cooling speed of 20-100 ℃/s, and obtaining a blank after forging.
S4: placing the blank into a heating furnace for heating, and uniformly heating to 880-980 ℃ at a heating rate of 20-80 ℃/s to obtain the heat-treated blank.
S5: and (3) placing the heat treatment blank on a stamping device, placing a shaping die on the heat treatment blank, stamping the heat treatment blank by using the stamping device, and stamping the mounting hole 31, the counter bore 35, the boss 32, the sealing groove 33 and the mounting notch 34 to obtain the molded blank.
S6: and (3) water-cooling the formed blank by using stamping equipment, cooling to 150-200 ℃ at a constant speed at a cooling speed of 30-60 ℃/s, taking out for air cooling, and cooling to normal temperature at a cooling speed of 4-8 ℃/s to obtain the semi-finished flange.
S7: and performing shot blasting processing on the semi-finished flange, cleaning oxides and impurities on the surface, and eliminating the stress of the disc body.
S8: and polishing the semi-finished flange, wherein the surface roughness is smaller than Ra0.8, and packaging after polishing is finished to obtain the high-tensile flange.
In this embodiment, the heating furnace includes, but is not limited to, a fuel heating furnace. The shaping mould is provided with a plurality of shaping moulds, and the outline of one end of the shaping mould is respectively consistent with the outlines of the mounting hole 31, the counter bore 35, the boss 32, the sealing groove 33 and the mounting notch 34, and when the novel plastic flange is used, the shaping mould is placed on the flange plate body 30, and the stamping equipment is utilized to stamp the shaping mould on the flange plate body 30, so that the stamping of the outlines of the mounting hole 31, the counter bore 35, the boss 32, the sealing groove 33 and the mounting notch 34 is realized.
Referring to fig. 3 to 7, for the above-mentioned high tensile flange, the present invention further provides a stamping device, which is suitable for any one of the above-mentioned stamping processes, and the stamping device includes a working platform 10, a stamping head 19 is disposed above the working platform 10, and a motor (not shown) is used to control the stamping head 19 to move up and down for stamping. The working platform 10 is provided with a placing support 20, the placing support 20 is opposite to the stamping head 19, and the flange plate body 30 is installed on the placing support 20 and is located below the stamping head 19. When the stamping machine is used, the motor is used for controlling the stamping head 19 to move up and down for stamping, so that the flange plate body 30 on the working platform 10 is stamped.
Further, the placing bracket 20 is provided with a liquid discharging groove 21 and a mounting boss 22, the mounting boss 22 is sleeved with a heating coil 29, the flange plate body 30 is placed on the mounting boss 22, and the heating coil 29 is sleeved outside the flange plate body 30. Preferably, the upper plane of the drain groove 21 is lower than the upper plane of the mounting boss 22.
In this embodiment, the heating coil 29 is a copper coil, and the heating mode of the heating coil 29 is electromagnetic induction heating. When in use, the flange plate body 30 is placed on the mounting boss 22, the heating coil 29 is sleeved on the mounting boss 22 and positioned outside the flange plate body 30, so that the flange plate body 30 is heated and insulated, the temperature of the flange plate body 30 is ensured to be controllable, and the heat treatment effect is improved. The heating coil 29 is arranged on the stamping equipment, so that the stamping equipment has the capability of rapid stamping and the capability of heat preservation and temperature adjustment, and the processing quality and the production efficiency are greatly ensured.
Further, a water tank 12 is disposed in the working platform 10, a mounting cavity 14 is formed on the upper plane of the working platform 10, the mounting cavity 14 is communicated with the water tank 12, and cooling water is filled in the water tank 12, preferably, the cooling water includes but is not limited to water. The cooling water pump 11 is arranged in the mounting cavity 14, a water suction pipe 15 is arranged at one end of the cooling water pump 11, a spray head 13 is arranged at the other end of the cooling water pump 11, the water suction pipe 15 is positioned in the water tank 12 and is used for sucking cooling water in the water tank 12, and the spray head 13 is opposite to the flange plate body 30 and is used for spraying the cooling water in the water tank 12 onto the flange plate body 30.
The placing support 20 is provided with a drain opening 23 positioned in the drain groove 21, the working platform 10 is provided with a communication channel 16, one end of the communication channel 16 is opposite to and communicated with the drain opening 23, and the other end of the communication channel 16 is communicated with the water tank 12.
When in use, the cooling water in the water tank 12 is pumped out by the cooling water pump 11 and sprayed onto the flange body 30, so that the water-cooling quenching of the flange body 30 is realized, and the continuity and stability of the processing process are ensured. Meanwhile, the cooling water pump 11 and the communication channel 16 are both communicated with the water tank 12, cooling water in the water tank 12 sequentially passes through the drain tank 21, the drain port 23 and the communication channel 16 after cooling the flange plate body 30, and finally flows into the water tank 12, so that the circulation of the cooling water is completed, the rapid cooling system is provided for the stamping equipment through the installation of the cooling water pump 11 and reasonable water circulation setting, the cooling stability and convenience are ensured, the cooling effect is improved, and meanwhile, the heat treatment effect and the product processing quality are improved.
It will be appreciated that a filter screen (not shown) is provided in the communication channel 16, so as to filter the cooled cooling water, prevent impurities from entering the water tank 12, and ensure the use stability of the present invention.
The center of the upper surface of the placement bracket 20 is detachably connected with a center hole positioning column 17, and the center hole positioning column 17 is matched with a center hole 36 on the flange plate body 30. When in use, after the flange plate body 30 is placed on the placement bracket 20, the central hole positioning column 17 passes through the central hole 36 and is mounted on the placement bracket 20, so that the positioning of the flange plate body 30 is completed, and the processing stability is ensured.
Further, the working platform 10 is provided with a mold support 18, one end of the shaping mold is connected to the mold support 18 in a matching manner, and the other end of the shaping mold is placed on the flange body 30. Preferably, the shaping mold is partially sleeved on the central hole positioning column 17, so that the positioning accuracy is ensured.
Referring to S1 to S8 in the foregoing stamping process, the specific operation steps of the stamping device of the present invention are:
step one: and placing the heat treatment plate on a mounting boss 22 on the stamping equipment, and controlling the stamping head 19 to move up and down to stamp by utilizing the motor so as to gradually shape the heat treatment plate. And forging the heat treatment plate material to obtain the blank.
Step two: the blank is subjected to heat treatment to obtain a heat treatment blank, the heat treatment blank is placed on a mounting boss 22 on a stamping device, positioning is performed by using a central hole positioning column 17, one end of a shaping die is mounted on a die support 18, the other end of the shaping die is placed on the heat treatment blank, the stamping head 19 is driven to move up and down for stamping, and a mounting hole 31, a counter bore 35, a boss 32, a sealing groove 33 and a mounting notch 34 are respectively stamped. Obtaining the molded blank.
Step three: and driving the cooling water pump 11 to pump out and spray cooling water in the water tank 12 onto the flange body 30, so as to realize water cooling of the flange body 30 and obtain the semi-finished flange.
The present invention provides a stamping process and stamping equipment for manufacturing a flange body 30 with high tensile strength, which has the capability of rapid stamping and heat preservation, and is also provided with a rapid cooling system. The flange plate body 30 is placed on the mounting boss 22, the heating coil 29 is sleeved on the mounting boss 22 and positioned outside the flange plate body 30, the flange plate body 30 is heated or insulated through the heating coil 29, the temperature of the flange plate body 30 is ensured to be controllable, and the heat treatment effect and the processing quality are improved. The cooling water pump 11 pumps out and sprays the cooling water in the water tank 12 onto the flange body 30, so as to realize water cooling quenching of the flange body 30 and ensure continuity and stability of the processing process. Meanwhile, the cooling water pump 11 and reasonable water circulation arrangement thereof provide stable and rapid cooling effect for the stamping equipment, ensure cooling stability and convenience, improve cooling effect, and further improve heat treatment effect and product processing quality.
It will be understood that the invention has been described in terms of several embodiments, and that various changes and equivalents may be made to these features and embodiments by those skilled in the art without departing from the spirit and scope of the invention. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the invention without departing from the essential scope thereof. Therefore, it is intended that the invention not be limited to the particular embodiment disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.
Claims (10)
1. The high-tensile flange is characterized by comprising a flange body (30), wherein the flange body (30) is annular, a central hole (36) is formed in the center of the flange body, a plurality of mounting holes (31) are uniformly formed in the flange body (30), the mounting holes (31) penetrate through the wall of the flange body (30), a plurality of counter bores (35) are formed in the flange body (30) and located at the mounting holes (31), and one mounting hole (31) is opposite to one counter bore (35); one surface of the flange plate body (30) is provided with a boss (32), a sealing groove (33) is formed in the boss (32), and a mounting notch (34) is formed in the boss (32) and located at the sealing groove (33).
2. A stamping process suitable for use with the high tensile flange of claim 1, comprising:
s1: cutting a plate material on the raw material plate material by using a laser cutting machine or a cutting machine, and cutting a central hole (36) to obtain an annular plate material;
s2: placing the annular plate into a heating furnace for heating, and uniformly heating to 890-940 ℃ at a heating rate of 10-50 ℃/s to obtain a heat-treated plate;
s3: forging the heat-treated plate, cooling to 428-512 ℃ at a constant speed at a cooling speed of 20-100 ℃/s, and obtaining a blank after forging;
s4: placing the blank into a heating furnace for heating, and uniformly heating to 880-980 ℃ at a heating rate of 20-80 ℃/s to obtain a heat-treated blank;
s5: placing a shaping die on a heat treatment blank, punching the heat treatment blank, and punching a mounting hole (31), a counter bore (35), a boss (32), a sealing groove (33) and a mounting notch (34) to obtain a shaped blank;
s6: cooling the molded blank with water, cooling to 150-200 ℃ at a constant speed at a cooling speed of 30-60 ℃/s, then cooling to normal temperature at a cooling speed of 4-8 ℃/s, and obtaining a semi-finished flange;
s7: performing shot blasting processing on the semi-finished flange, cleaning oxides and impurities on the surface, and eliminating the stress of the disc body;
s8: and polishing the semi-finished flange, wherein the surface roughness is smaller than Ra0.8, and packaging after polishing is finished to obtain the high-tensile flange.
3. The stamping process of claim 2, wherein the heating furnace is a fuel heating furnace.
4. Stamping process according to claim 2, characterized in that the shaping mould has a plurality of shaping moulds, one end of which is contoured to correspond to the contour of the mounting hole (31), the counter bore (35), the boss (32), the sealing groove (33) and the mounting notch (34), respectively.
5. Stamping equipment suitable for high tensile ring flange of claim 1, characterized in that, including work platform (10), work platform (10) top is equipped with stamping head (19), be equipped with on work platform (10) and place support (20), ring flange body (30) are installed place on support (20) and be located stamping head (19) below, be equipped with on placing support (20) and arrange cistern (21) and installation boss (22), the cover is equipped with heating coil (29) on installation boss (22), ring flange body (30) are placed on installation boss (22), heating coil (29) cover are established ring flange body (30) are outside.
6. The stamping device according to claim 5, characterized in that a water tank (12) is arranged in the working platform (10), cooling water is filled in the water tank (12), a mounting cavity (14) is formed in the upper plane of the working platform (10), the mounting cavity (14) is communicated with the water tank (12), a cooling water pump (11) is arranged in the mounting cavity (14), a water suction pipe (15) is arranged at one end of the cooling water pump (11), a spray head (13) is arranged at the other end of the cooling water pump (11), the water suction pipe (15) is positioned in the water tank (12), and the spray head (13) is opposite to the flange plate body (30).
7. Stamping equipment according to claim 6, characterized in that a drain opening (23) is arranged in the drain groove (21) on the placing support (20), a communication channel (16) is arranged on the working platform (10), one end of the communication channel (16) is opposite to and communicated with the drain opening (23), and the other end of the communication channel (16) is communicated with the water tank (12).
8. The stamping apparatus of claim 5, wherein a central hole positioning post (17) is detachably connected to the center of the upper surface of the placement bracket (20), and the central hole positioning post (17) is matched with a central hole (36) on the flange body (30).
9. Stamping apparatus according to claim 5, characterized in that the heating coil (29) is a copper coil and the heating means of the heating coil (29) is electromagnetic induction heating.
10. Stamping equipment according to claim 8, characterized in that the working platform (10) is provided with a mould bracket (18), a shaping mould is arranged on the mould bracket (18), one end of the shaping mould is connected to the mould bracket (18) in a matched manner, the other end of the shaping mould is placed on the flange plate body (30), and the shaping mould is partially sleeved on the central hole positioning column (17).
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| CN202311585393.2A CN117287571B (en) | 2023-11-27 | 2023-11-27 | High-tensile flange plate, stamping process and stamping equipment thereof |
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| CN202311585393.2A CN117287571B (en) | 2023-11-27 | 2023-11-27 | High-tensile flange plate, stamping process and stamping equipment thereof |
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| CN117960901A (en) * | 2024-03-29 | 2024-05-03 | 山西昊坤法兰股份有限公司 | Forming device of ring flange |
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| CN117287571B (en) | 2024-01-30 |
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