CN112496223A - Radial forging method for short blank - Google Patents
Radial forging method for short blank Download PDFInfo
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- CN112496223A CN112496223A CN202011313033.3A CN202011313033A CN112496223A CN 112496223 A CN112496223 A CN 112496223A CN 202011313033 A CN202011313033 A CN 202011313033A CN 112496223 A CN112496223 A CN 112496223A
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- workpiece
- manipulator
- pass
- operating machine
- clamps
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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
- B21J7/00—Hammers; Forging machines with hammers or die jaws acting by impact
- B21J7/02—Special design or construction
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- 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
- B21K27/00—Handling devices, e.g. for feeding, aligning, discharging, Cutting-off means; Arrangement thereof
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- Mechanical Engineering (AREA)
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Abstract
The invention discloses a short blank radial forging method, which comprises the following steps: firstly, installing a lifting roller bed; secondly, wrapping heat preservation cotton on the operating machine clamp; thirdly, heating the short blank to be in a plastic state; fourthly, the operating machine A clamps the short blank and carries out pushing according to the first pass; fifthly, lifting the lifting roller way on the side A of the manipulator; sixthly, the manipulator A clamps the workpiece and backwards exits from the host at the highest speed; seventhly, the position of the host hammer head is changed according to the deformation of the second pass; eighthly, descending the lifting roller way on the side A of the manipulator; ninth, the manipulator A clamps the workpiece and pushes the workpiece according to a second pass; tenthly, after the length reaches the handover, handing over the operating machine A to the operating machine B; eleven, drawing and beating the operation machine B according to the first pass; twelfth, the position of the hammer head of the main machine is changed according to the deformation of the second pass; thirteen, the manipulator B clamps the workpiece and pushes the workpiece according to the second pass. The forging device is novel and reasonable in structure, convenient to operate and convenient for radial forging of blanks with shorter lengths.
Description
Technical Field
The invention relates to the technical field of forging, in particular to a 690 alloy short blank radial forging method.
Background
690 alloy is an austenitic nickel-based high temperature alloy containing 30% of Cr, has excellent stress corrosion cracking resistance and thermal stability, has wide application prospects in aviation, navigation and nuclear industries, and is widely applied to steam generators of pressurized water reactor nuclear power plants at present. However, the 690 alloy is a superalloy, and has a small forging temperature range, and generally requires forging and forming for many times. Radial forging can be formed by one-shot forging because of its unique characteristics. The radial forging is that a plurality of hammers which are symmetrically distributed around the blank are used for high-frequency synchronous forging against the axis of the blank to be forged, and the blank is axially fed while rotating, so that the blank is drawn out and thinned under the condition of multi-head spiral extension deformation. The operating machines are positioned on two sides of the main machine and are responsible for clamping the blank and rotating the blank and feeding the blank axially. Generally, when the manipulator A clamps the blank and pushes forwards for the first time, before the manipulator A reaches a zero position, the length of the workpiece exceeds the main machine and extends into the clamp of the manipulator B, the extending length reaches the clamping length of the manipulator, at the moment, the manipulator A and the manipulator B are connected, and the manipulator B clamps the workpiece and pulls backwards to beat. However, if the initial length of the blank is short, the blank is clamped by the operating machine a, and when the operating machine a is pushed according to the first-pass deformation amount and reaches the zero position, the length of the workpiece cannot reach the clamping length of the operating machine B. At this time, the handover cannot be completed and the forging process cannot be performed.
Disclosure of Invention
The invention aims to solve the technical problems and provides a short blank radial forging method.
In order to achieve the technical purpose and achieve the technical requirements, the invention adopts the technical scheme that: the radial forging method of the short blank is characterized in that: the method comprises the following steps:
firstly, installing a lifting roller way beside a forging host machine on the side A of an operating machine;
step two, wrapping heat preservation cotton on the clamps of the operating machine A and the operating machine B;
step three, placing the short blank in a medium frequency furnace to be heated to a plastic state;
fourthly, the operating machine A clamps the short blank, and pushing is carried out according to the first-pass deformation and the working speed until the operating machine A reaches a zero position;
lifting a lifting roller way on the side A of the manipulator to support a workpiece;
step six, the manipulator A clamps the workpiece and backwards exits from the main machine at the highest speed until the workpiece completely exits from the range of the hammer head;
seventhly, carrying out position conversion on the host hammerhead according to the deformation of the second pass;
step eight, descending a lifting roller way on the side A of the manipulator;
step nine, clamping the workpiece by the manipulator A, and performing pushing according to the second pass deformation and the working speed;
step ten, after the length reaches the handover, handing over the operating machine A to the operating machine B;
step eleven, changing the position of the hammer head of the main machine to a first pass position, and performing drawing and beating by the operating machine B according to the first pass deformation and the working speed until the workpiece completely exits the range of the hammer head;
step twelve, the position of the host hammer head is changed according to the deformation of the second pass;
and thirteen, clamping the workpiece by the manipulator B, and pushing according to the second pass deformation and the working speed.
Preferably: and step nine, the manipulator A clamps the workpiece and performs pushing according to the second pass deformation and the working speed, if the length is not enough for the manipulator B to clamp, the manipulator A can clamp the workpiece for the third pass, and the length of the workpiece meets the requirement that the manipulator B can clamp the workpiece.
The invention has novel and reasonable structure and convenient operation, and the lifting roller way is added at the side A of the manipulator and is specially used when the manipulator A clamps a workpiece and quickly exits from the main machine backwards, so that the workpiece and the center of the forging hammer can be kept centered in the process of exiting the workpiece, and the hammer head can not forge the workpiece in the process of exiting the workpiece; the lifting roller way is added, so that radial forging can be conveniently carried out on the blank with shorter length, forward pushing and beating can be carried out for the second time or forward pushing and beating for the third time, and smooth transfer from the operating machine A to the operating machine B can be guaranteed.
Drawings
FIG. 1 is a schematic structural view of the present invention;
in the figure: 1. the manipulator A,2, a lifting roller way, 3, a forging host and 4, the manipulator B.
Detailed Description
The invention will be further explained with reference to the drawings.
In the figure: the short blank radial forging method is characterized by comprising the following steps: the method comprises the following steps:
firstly, installing a lifting roller way beside a forging host machine on the side A of an operating machine;
step two, wrapping heat preservation cotton on the clamps of the operating machine A and the operating machine B;
step three, placing the short blank in a medium frequency furnace to be heated to a plastic state;
fourthly, the operating machine A clamps the short blank, and pushing is carried out according to the first-pass deformation and the working speed until the operating machine A reaches a zero position;
lifting a lifting roller way on the side A of the manipulator to support a workpiece;
step six, the manipulator A clamps the workpiece and backwards exits from the main machine at the highest speed until the workpiece completely exits from the range of the hammer head;
seventhly, carrying out position conversion on the host hammerhead according to the deformation of the second pass;
step eight, descending a lifting roller way on the side A of the manipulator;
step nine, clamping the workpiece by the manipulator A, and performing pushing according to the second pass deformation and the working speed;
step ten, after the length reaches the handover, handing over the operating machine A to the operating machine B;
step eleven, changing the position of the hammer head of the main machine to a first pass position, and performing drawing and beating by the operating machine B according to the first pass deformation and the working speed until the workpiece completely exits the range of the hammer head;
step twelve, the position of the host hammer head is changed according to the deformation of the second pass;
and thirteen, clamping the workpiece by the manipulator B, and pushing according to the second pass deformation and the working speed.
In this preferred embodiment, in the ninth step, the manipulator a clamps the workpiece, and performs jostling according to the second-pass deformation amount and the working speed, and if the length is not enough for the manipulator B to clamp, the manipulator a can clamp the workpiece for the third-pass jostling until the length of the workpiece meets the clamping capability of the manipulator B.
In the invention, the clamping and pushing of the operating machine A cannot exceed 3 times, because if the clamping of the operating machine A is carried out for 3 times of forging, firstly, the temperature of the blank can be reduced to be out of the range of the forging of the material; and secondly, the temperature difference between the surface of the clamping part and the core part is overlarge, so that the difference of the inner and outer properties of the workpiece is obvious during forging, and the quality of the forged piece is influenced.
The above-mentioned embodiments of the present invention are only examples for clearly illustrating the present invention, but not intended to limit the scope of the present invention, and all equivalent technical solutions also belong to the scope of the present invention, and the scope of the present invention should be defined by the claims.
Claims (2)
1. The short blank radial forging method is characterized by comprising the following steps: the method comprises the following steps:
firstly, installing a lifting roller way beside a forging host machine on the side A of an operating machine;
step two, wrapping heat preservation cotton on the clamps of the operating machine A and the operating machine B;
step three, placing the short blank in a medium frequency furnace to be heated to a plastic state;
fourthly, the operating machine A clamps the short blank, and pushing is carried out according to the first-pass deformation and the working speed until the operating machine A reaches a zero position;
lifting a lifting roller way on the side A of the manipulator to support a workpiece;
step six, the manipulator A clamps the workpiece and backwards exits from the main machine at the highest speed until the workpiece completely exits from the range of the hammer head;
seventhly, carrying out position conversion on the host hammerhead according to the deformation of the second pass;
step eight, descending a lifting roller way on the side A of the manipulator;
step nine, clamping the workpiece by the manipulator A, and performing pushing according to the second pass deformation and the working speed;
step ten, after the length reaches the handover, handing over the operating machine A to the operating machine B;
step eleven, changing the position of the hammer head of the main machine to a first pass position, and performing drawing and beating by the operating machine B according to the first pass deformation and the working speed until the workpiece completely exits the range of the hammer head;
step twelve, the position of the host hammer head is changed according to the deformation of the second pass;
and thirteen, clamping the workpiece by the manipulator B, and pushing according to the second pass deformation and the working speed.
2. The short billet radial forging method as set forth in claim 1, wherein: and step nine, the manipulator A clamps the workpiece and performs pushing according to the second pass deformation and the working speed, if the length is not enough for the manipulator B to clamp, the manipulator A can clamp the workpiece for the third pass, and the length of the workpiece meets the requirement that the manipulator B can clamp the workpiece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011313033.3A CN112496223B (en) | 2020-11-21 | 2020-11-21 | Radial forging method for short blank |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011313033.3A CN112496223B (en) | 2020-11-21 | 2020-11-21 | Radial forging method for short blank |
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| Publication Number | Publication Date |
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| CN112496223A true CN112496223A (en) | 2021-03-16 |
| CN112496223B CN112496223B (en) | 2021-09-07 |
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| CN202011313033.3A Active CN112496223B (en) | 2020-11-21 | 2020-11-21 | Radial forging method for short blank |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200984622Y (en) * | 2006-12-22 | 2007-12-05 | 西安重型机械研究所 | Short material lengthening clamping device |
| CN102581187A (en) * | 2012-02-21 | 2012-07-18 | 山西太钢不锈钢股份有限公司 | Method for forging flat steel by using universal hammerhead |
| CN102601280A (en) * | 2011-01-24 | 2012-07-25 | 西安宝信冶金技术有限公司 | Multi-hammer high-frequency precision radial synchronous forming method |
| KR20130014145A (en) * | 2011-07-29 | 2013-02-07 | 삼원산업 주식회사 | Device and method for automobile cowl cross bar |
| CN206604990U (en) * | 2017-03-31 | 2017-11-03 | 兰州兰石集团有限公司 | Height adjustable radial forging machine Work piece centering device |
| CN207668408U (en) * | 2017-12-25 | 2018-07-31 | 福州金锻工业有限公司 | A kind of automatic roll forging machine of two pass time |
| CN111167986A (en) * | 2020-02-26 | 2020-05-19 | 建龙北满特殊钢有限责任公司 | Forging method for improving net shape of roller blank by using radial forging machine |
-
2020
- 2020-11-21 CN CN202011313033.3A patent/CN112496223B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200984622Y (en) * | 2006-12-22 | 2007-12-05 | 西安重型机械研究所 | Short material lengthening clamping device |
| CN102601280A (en) * | 2011-01-24 | 2012-07-25 | 西安宝信冶金技术有限公司 | Multi-hammer high-frequency precision radial synchronous forming method |
| KR20130014145A (en) * | 2011-07-29 | 2013-02-07 | 삼원산업 주식회사 | Device and method for automobile cowl cross bar |
| CN102581187A (en) * | 2012-02-21 | 2012-07-18 | 山西太钢不锈钢股份有限公司 | Method for forging flat steel by using universal hammerhead |
| CN206604990U (en) * | 2017-03-31 | 2017-11-03 | 兰州兰石集团有限公司 | Height adjustable radial forging machine Work piece centering device |
| CN207668408U (en) * | 2017-12-25 | 2018-07-31 | 福州金锻工业有限公司 | A kind of automatic roll forging machine of two pass time |
| CN111167986A (en) * | 2020-02-26 | 2020-05-19 | 建龙北满特殊钢有限责任公司 | Forging method for improving net shape of roller blank by using radial forging machine |
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| CN112496223B (en) | 2021-09-07 |
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