CN116408412A - Rotary forging forming die for special-shaped rod - Google Patents
Rotary forging forming die for special-shaped rod Download PDFInfo
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- CN116408412A CN116408412A CN202111657037.8A CN202111657037A CN116408412A CN 116408412 A CN116408412 A CN 116408412A CN 202111657037 A CN202111657037 A CN 202111657037A CN 116408412 A CN116408412 A CN 116408412A
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- forming die
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- 238000005242 forging Methods 0.000 title claims abstract description 66
- 241000251131 Sphyrna Species 0.000 claims abstract 2
- 230000008859 change Effects 0.000 claims description 8
- 229910000851 Alloy steel Inorganic materials 0.000 claims description 4
- 229910000997 High-speed steel Inorganic materials 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 238000000034 method Methods 0.000 abstract description 10
- 230000008569 process Effects 0.000 abstract description 7
- 238000003825 pressing Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 238000001125 extrusion Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
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Classifications
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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
- B21J13/00—Details of machines for forging, pressing, or hammering
- B21J13/06—Hammers tups; Anvils; Anvil blocks
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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
- B21J13/00—Details of machines for forging, pressing, or hammering
- B21J13/02—Dies or mountings therefor
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Forging (AREA)
Abstract
The utility model belongs to the technical field of pressure processing of special-shaped rods, and particularly relates to a rotary forging forming die of a special-shaped rod. Consists of 4 hammerheads; each hammer head is divided into an inlet section, a bearing and an outlet section; the inner hole channel surrounded by each section of the bearing is the same as the section of the bar to be processed; the cross section of an inner channel surrounded by the inlet section and the outlet section gradually increases from inside to outside, and the shape of the inner channel is similar to that of the cross section of the processed bar. The special-shaped rod with the cross section similar to a cross shape can be formed through one rotary forging process by only changing the die on the premise of not changing the rotary forging machine.
Description
Technical Field
The utility model belongs to the technical field of pressure processing of special-shaped rods, and particularly relates to a rotary forging forming die of a special-shaped rod.
Background
The special-shaped bar is a bar with a cross-shaped cross section, 4 lobes are protruded outwards on the cross section, the maximum part of the cross section is D, the arc radius of the protruded part is (1/6) D, the arc radius of the concave part is (1/4) D, and the arc of the protruded part is tangent to the arc of the concave part. The cross-sectional dimensions of the shaped bar are scaled equally to the typical dimensions described above.
The existing technology for manufacturing the special-shaped rod is extrusion technology, the method relies on axial pressure to cause deformation, the deformation ratio is large, the requirements on processing pressure and processing temperature are high, the feeding speed regulation and control range is narrow, an extrusion blank is easy to crack in the processing process, and bar materials with extremely large length-diameter ratio are difficult to process.
The rotary forging is a forming mode of repeatedly forging a workpiece while rotating a die hammer, and the radial pressure is used for deformation, so that the rotary forging has the advantages of small processing pressure, wide feeding speed regulation and control range, suitability for processing long rods, easiness in continuous operation, high processing efficiency and the like, and is widely applied to the production of shaft parts in the automobile manufacturing industry at present.
The existing rotary forging technology and the comparison literature are as follows:
(1) The utility model provides a processing hollow motor shaft's rotary forging tup (CN 110883305A) provides a processing hollow motor shaft's rotary forging tup, including the tup body, have the installation department on the tup body and with the forging portion that installation department links as an organic wholely, forging portion top is provided with a plurality of forging and pressing faces that are used for forging and pressing the outline of shaping hollow motor shaft along tup body length direction, a plurality of forging and pressing faces are the echelonment along tup body length direction and arrange, with the cambered surface transition between the adjacent forging and pressing faces, wherein all be provided with interconnect's first cambered surface and second cambered surface on each forging and pressing face, the diameter of second cambered surface equals with blank forging diameter, the diameter of first cambered surface equals with hollow motor shaft corresponding section diameter. The rotary forging hammer head provided by the utility model is suitable for processing a hollow motor shaft with a circular outer contour, and is not suitable for processing a special-shaped rod.
(2) The utility model provides a press from both sides material feeding unit (CN 210547821U) for rotary forging processing belongs to rotary forging processing technology field, specifically is a press from both sides material feeding unit for rotary forging processing, the on-line screen storage device comprises a base, the inside of base is equipped with the device groove, the device inslot internal rotation is connected with the screw rod, the one end that the base is close to the device groove is equipped with the cavity, the inner wall of device groove is run through to the cavity internal extension is run through to the one end of screw rod, the fixed first gear that has cup jointed of one end that the screw rod extends, the interior top fixedly connected with motor of cavity, fixedly connected with and first gear engaged with's second gear on the output shaft of motor, the screw thread has cup jointed the thread bush on the screw rod, the top fixedly connected with mount of thread bush, the device groove is close to the position fixedly connected with locating lever of notch. The clamping and feeding device provided by the utility model can automatically send a processed workpiece into a rotary forging machine at a uniform speed for forging, but is only suitable for rotary forging of round bars, and is not suitable for rotary forging forming of special-shaped bars; only the clamping and feeding device is involved, and the die is not involved.
(3) The utility model provides an automatic unloading mechanism of going up of rotary forging machine (CN 211386777U) discloses an automatic unloading mechanism of going up of rotary forging machine, which comprises a bod, the top face welding of organism has the processing chamber, and the trailing flank of processing chamber is equipped with business turn over groove simultaneously, the right flank inner wall fixed mounting of processing chamber has U type pole and the port inboard of U type pole to have a fixed block through spring fixed mounting, and a plurality of screw hole has been seted up in proper order from front to back simultaneously to the top end face, the bottom face of U type pole, fixed block and the inner wall of U type pole respectively fixed mounting have movable conducting strip, fixed conducting strip, the right flank outer wall fixed mounting of processing chamber has the relay, and movable conducting strip, fixed conducting strip are connected with the relay respectively simultaneously, the rear end side transverse welding of base has the front end face of fixing base and fixing base to the processing chamber in, the spout has been seted up to the top face of fixing base simultaneously. The clamping and feeding device provided by the utility model is convenient for adjusting the processing position of a workpiece, and can also improve the processing efficiency, but is only suitable for rotary forging of round bars, and is not suitable for rotary forging forming of special-shaped bars; only the clamping and feeding device is involved, and the die is not involved.
(4) A mandrel non-sticking device and method (CN 111715831A) in a mandrel-containing rotary forging process relate to the field of rotary forging machines and disclose a mandrel non-sticking device in a mandrel-containing rotary forging process. The device provided by the utility model focuses on the rotary forging of the core rod, but is only suitable for rotary forging of round rods, and is not suitable for rotary forging forming of special-shaped rods; only the clamping and feeding device is involved, and the die is not involved.
(5) A special rotary forging device (CN 111054871A) for large-diameter rotary forging bar pipes relates to a rotary forging machine, wherein a die is arranged on a rotary forging main shaft, the rotary forging main shaft is arranged in the middle of the die, the rotary forging main shaft is connected with the die in a cross manner, an elastic pad is arranged on the die, a hammer head is arranged on the elastic pad, the outer side face of the hammer head is connected with a retaining ring, a pressure ball is arranged on the retaining ring, an outer ring is arranged on the outer side face of the retaining ring, and a supporting device is arranged on the elastic pad. The utility model relates to a rotary forging machine, a rotary forging die hammer head and other parts, which cannot be used for processing special-shaped bars.
(6) The utility model discloses a precision rotary forging machine (CN 210334188U), which relates to the technical field of forging equipment; the technical problems that local temperature is easy to be too high due to high-speed operation in the rotary forging machine, machining precision of metal wires is affected, and meanwhile, the metal wires subjected to high-temperature treatment are inconvenient for operators to directly curl are solved. The utility model mainly adds a cooling device and a function for the rotary forging machine, and can not be used for processing the special-shaped rod.
Therefore, according to the prior art and the comparison literature, the existing rotary forging forming die can only process bars or pipes with circular cross sections, and cannot meet the manufacturing requirement of special-shaped bars with non-circular cross sections.
Disclosure of Invention
The utility model aims to provide a rotary forging forming die for a special-shaped rod, which can form the special-shaped rod with a cross-shaped section through one rotary forging procedure only by replacing the die on the premise of not replacing a rotary forging machine.
In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:
a rotary forging forming die of a special-shaped rod consists of 4 hammers; each hammer head is divided into an inlet section, a bearing and an outlet section; the inner hole channel surrounded by each section of the bearing is the same as the section of the bar to be processed; the cross section of an inner channel surrounded by the inlet section and the outlet section gradually increases from inside to outside, and the shape of the inner channel is similar to that of the cross section of the processed bar.
The arc of the outer convex part of the cross section of the inlet section, the bearing and the outlet section is tangent to the arc of the inner concave part.
The gradual change angle of the size of the inner hole channel enclosed by each section of the inlet section is 2-10 degrees.
The gradual change angle of the size of the inner hole channel enclosed by each section of the outlet section is 2-10 degrees.
The hammer head is made of hard alloy steel.
The hammer head is made of high-speed steel.
The hammer head is made of die steel.
The furthest distance of the inner channel surrounded by each section of the bearing is 6 mm.
The beneficial effects obtained by the utility model are as follows:
the rotary forging forming die for the special-shaped rod can realize rotary forging forming of the special-shaped rod. 1. The complete rotary forging forming die consists of 4 hammers; each hammer head is divided into an inlet section, a bearing and an outlet section; the inner hole channel surrounded by each section of the bearing is the same as the section of the bar to be processed; the cross section of an inner channel surrounded by the inlet section and the outlet section gradually increases from inside to outside, and the shape of the inner channel is similar to that of the cross section of the processed bar. The special-shaped rod rotary forging forming die disclosed by the utility model can enable the special-shaped rod with the cross section similar to a cross shape to be formed through one rotary forging process.
Drawings
FIG. 1 is a three-view of a swage forming die for a shaped bar;
FIG. 2 is a perspective view of a swage forming die for a shaped bar;
fig. 3 is a cross-sectional view of a swage forming die for a shaped bar.
Detailed Description
The utility model will now be described in detail with reference to the drawings and specific examples.
A rotary forging forming die of a special-shaped rod consists of 4 hammers; each hammer head is divided into an inlet section, a bearing and an outlet section; the inner hole channel surrounded by each section of the bearing is the same as the section of the bar to be processed; the cross section of an inner channel surrounded by the inlet section and the outlet section gradually increases from inside to outside, and the shape of the inner channel is similar to that of the cross section of the processed bar.
The arc (1) at the outer convex part of the cross section of the inlet section, the bearing and the outlet section is tangent to the arc (2) at the inner concave part.
The gradual change angle of the size of the inner hole channel enclosed by each section of the inlet section is 2-10 degrees.
The gradual change angle of the size of the inner hole channel enclosed by each section of the outlet section is 2-10 degrees.
The hammer head is made of hard alloy steel or high-speed steel or die steel.
Example 1:
a rotary forging forming die of a special-shaped rod comprises 1 set of complete rotary forging forming die consisting of 4 hammers; each hammer head is divided into an inlet section, a bearing and an outlet section; the inner hole channel surrounded by each section of the bearing is the same as the section of the bar to be processed; the cross section of an inner channel surrounded by the inlet section and the outlet section gradually increases from inside to outside, and the shape of the inner channel is similar to that of the cross section of the processed bar.
The arc (1) at the outer convex part of the cross section of the inlet section, the bearing and the outlet section is tangent to the arc (2) at the inner concave part.
The furthest distance of the inner channel surrounded by each section of the bearing is 6 mm.
The gradual change angle of the size of the inner hole channel enclosed by each section of the inlet section is 2-10 degrees.
The gradual change angle of the size of the inner hole channel enclosed by each section of the outlet section is 2-10 degrees.
The hammer head is made of hard alloy steel or high-speed steel or die steel.
And (5) loading the die into a rotary forging machine to perform rotary forging processing on the special-shaped rod.
Claims (8)
1. A rotary forging forming die of a special-shaped rod is characterized in that: consists of 4 hammerheads; each hammer head is divided into an inlet section, a bearing and an outlet section; the inner hole channel surrounded by each section of the bearing is the same as the section of the bar to be processed; the cross section of an inner channel surrounded by the inlet section and the outlet section gradually increases from inside to outside, and the shape of the inner channel is similar to that of the cross section of the processed bar.
2. The swage forming die of a shaped bar of claim 1, wherein: the arc of the outer convex part of the cross section of the inlet section, the bearing and the outlet section is tangent to the arc of the inner concave part.
3. The swage forming die of a shaped bar of claim 1, wherein: the gradual change angle of the size of the inner hole channel enclosed by each section of the inlet section is 2-10 degrees.
4. The swage forming die of a shaped bar of claim 1, wherein: the gradual change angle of the size of the inner hole channel enclosed by each section of the outlet section is 2-10 degrees.
5. The swage forming die of a shaped bar of claim 1, wherein: the hammer head is made of hard alloy steel.
6. The swage forming die of a shaped bar of claim 1, wherein: the hammer head is made of high-speed steel.
7. The swage forming die of a shaped bar of claim 1, wherein: the hammer head is made of die steel.
8. The swage forming die of a shaped bar of claim 1, wherein: the furthest distance of the inner channel surrounded by each section of the bearing is 6 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111657037.8A CN116408412A (en) | 2021-12-31 | 2021-12-31 | Rotary forging forming die for special-shaped rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111657037.8A CN116408412A (en) | 2021-12-31 | 2021-12-31 | Rotary forging forming die for special-shaped rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116408412A true CN116408412A (en) | 2023-07-11 |
Family
ID=87054966
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111657037.8A Pending CN116408412A (en) | 2021-12-31 | 2021-12-31 | Rotary forging forming die for special-shaped rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116408412A (en) |
-
2021
- 2021-12-31 CN CN202111657037.8A patent/CN116408412A/en active Pending
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