CN114558964A - System and method for controlling axial conical roller position of radial-axial ring rolling mill - Google Patents
System and method for controlling axial conical roller position of radial-axial ring rolling mill Download PDFInfo
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- CN114558964A CN114558964A CN202210159243.4A CN202210159243A CN114558964A CN 114558964 A CN114558964 A CN 114558964A CN 202210159243 A CN202210159243 A CN 202210159243A CN 114558964 A CN114558964 A CN 114558964A
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- 238000005096 rolling process Methods 0.000 title claims abstract description 125
- 238000000034 method Methods 0.000 title claims abstract description 27
- 238000005242 forging Methods 0.000 claims abstract description 55
- 238000006073 displacement reaction Methods 0.000 claims abstract description 22
- 238000012545 processing Methods 0.000 claims abstract description 18
- 238000004590 computer program Methods 0.000 claims abstract description 4
- 238000001514 detection method Methods 0.000 claims description 25
- 238000012937 correction Methods 0.000 claims description 8
- 238000005259 measurement Methods 0.000 claims description 5
- 239000002184 metal Substances 0.000 abstract description 2
- 238000004364 calculation method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21H—MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
- B21H1/00—Making articles shaped as bodies of revolution
- B21H1/06—Making articles shaped as bodies of revolution rings of restricted axial length
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Abstract
The invention belongs to the field of metal rolling, and discloses a control system for the axial conical roll position of a radial-axial ring rolling mill, which comprises: the device comprises a processing unit, a signal receiving module and a displacement sensor, wherein the signal output end of the displacement sensor is connected with the signal input end of the signal receiving module, the signal output end of the signal receiving module is connected with the processing unit, the displacement sensor is used for feeding back and measuring the feeding data of the axial conical rolls of the radial-axial ring rolling mill, the signal receiving module is used for transmitting the received data to the processing unit, and the processing unit is used for acquiring the data of the signal receiving module and operating a computer program. And a control method of the system is disclosed. In the radial-axial rolling process of the annular forging, the speed of the conical roller is consistent with that of the main roller, the end face of the annular forging is reduced from being folded, and a basis is provided for the stability of the annular forging in the rolling process.
Description
Technical Field
The invention belongs to the field of metal rolling, and particularly relates to a system and a method for controlling the position of an axial conical roller of a radial-axial ring rolling mill.
Background
In the rolling process of the radial-axial annular forging, along with the increase of the diameter of the annular forging, the position of the axial conical roller needs to be accurately adapted to the increase of the diameter of the annular forging in real time so as to ensure that the linear speeds of the radial main roller and the axial conical roller on the outer surface of the annular forging are consistent. If the position of the axial conical roller does not accurately adapt to the increase of the diameter of the annular forging, the speeds of the main roller and the axial conical roller are not consistent in the rolling process, so that the end face of the annular forging is easily folded, and the stability of the rolling process of the annular forging is influenced.
In the prior art, a method for conveniently and accurately determining the axial conical roller position control in the rolling process of the annular forge piece of the radial-axial ring rolling mill does not exist.
Disclosure of Invention
In view of the above-mentioned deficiencies of the prior art, the present invention provides a system and a method for controlling the position of an axial conical roller of a radial-axial ring rolling mill.
In order to achieve the above purpose, the invention relates to a position control system of an axial conical roller of a radial-axial ring rolling mill, which adopts the following technical scheme:
a system for controlling the position of an axial cone roll of a radial-axial ring rolling mill, comprising: the device comprises a processing unit, a signal receiving module and a displacement sensor, wherein the signal output end of the displacement sensor is connected with the signal input end of the signal receiving module, the signal output end of the signal receiving module is connected with the processing unit, the displacement sensor is used for feeding back and measuring the feeding data of the axial conical rolls of the radial-axial ring rolling mill, the signal receiving module is used for transmitting the received data to the processing unit, and the processing unit is used for acquiring the data of the signal receiving module and operating a computer program.
Furthermore, the position control system of the axial conical roller of the radial-axial ring rolling mill is also provided with a driving oil cylinder, and the displacement sensor measures and feeds back the feeding amount of the output end of the driving oil cylinder.
The invention also relates to a position control method of the axial conical roller of the radial-axial ring rolling mill, which comprises the following steps:
further, the outer diameter of the annular forging is obtained by calculating the horizontal distance from the rear end face of the rolling starting point of the axial conical roller to the excircle of the main roller, the distance from the position of the axial conical roller to the minimum rolling starting position of the axial conical roller, the maximum outer diameter distance between the outer diameter detection device and the axial conical roller and the outer diameter distance between the outer diameter detection device and the outer diameter of the annular forging.
The distance between the position of the axial conical roller and the minimum rolling starting position of the axial conical roller is a constant.
The outer diameter distance between the outer diameter detection device and the outer diameter of the annular forging is obtained by measuring through a distance measuring device.
The data of the position of the conical roller and the minimum initial position of the conical roller are obtained by detecting through a displacement detection device arranged on the axial conical roller device.
And 200, acquiring actual feedback data of the position of the conical roller and the minimum initial position of the conical roller in rolling. The actual feedback data of the conical roll position and the conical roll rolling minimum initial position is data of the relative position of the real-time position of the axial conical roll device and the axial conical roll rolling minimum initial position detected by a displacement detection device arranged on the axial conical roll device;
300, acquiring target data of the position of the conical roller and the minimum initial position of the conical roller in rolling and correction data of actual feedback data;
and step 400, acquiring the real-time position of the axial conical roller when the outer diameter of the annular forging is positioned at a certain fixed point P of the conical roller.
Further, in the step 100, a plurality of groups of real-time data of the outer diameter distance between the outer diameter detection device and the annular forging are obtained; the distance measuring device is provided with a plurality of distance measuring devices, and the measuring end of each distance measuring device is opposite to a measuring point on the workpiece.
Further, the step 400 is followed by further comprising the steps of obtaining a target data of the position of the conical roller and the minimum initial rolling position of the conical roller when the outer diameter of the annular forging is at a certain fixed point P of the conical roller, comparing the target data of the position of the conical roller and the minimum initial rolling position of the conical roller when the outer diameter of the annular forging is at the certain fixed point P of the conical roller with an actual data of the position of the conical roller and the minimum initial rolling position of the conical roller to obtain conical roller position correction data, and driving an axial conical roller oil cylinder by a hydraulic servo control system to control the position control system of the axial conical roller to move to a target feeding position.
Furthermore, the hydraulic servo control system consists of a hydraulic pump, a servo valve and a hydraulic cylinder.
In the process of rolling the annular forging, when the outer diameter of the annular forging is located at a certain fixed point P of a conical roller, target data of the position of the conical roller and the minimum initial rolling position of the conical roller are compared with actual data of the position of the conical roller and the minimum initial rolling position of the conical roller, correction data of the axial conical roller can be accurately calculated, the real-time position of the conical roller is controlled through a hydraulic servo control system, the outer diameter of the annular forging is located at the certain fixed point P of the conical roller, and finally, in the process of rolling the annular forging, the axial conical roller position needs to be accurately adapted to the increase of the diameter of the annular forging in real time along with the increase of the diameter of the annular forging so as to ensure that the linear speeds of a radial main roller and the axial conical roller on the outer surface of the annular forging are consistent. Therefore, the end faces of the annular forging are prevented from being folded, and a basis is provided for the stability of the annular forging in the rolling process.
Drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:
FIG. 1 is a schematic view of the overall structure of a radial-axial ring rolling mill to which the system and method for controlling the position of an axial conical roller in the rolling process of the ring rolling mill of the present invention are applied;
FIG. 2 is a top view of a radial-axial ring rolling mill to which the present invention is applied in a rolling process axial taper roll position control system and method;
FIG. 3 is a structural diagram of axial conical roller position control in the rolling process of the ring rolling mill of the invention;
FIG. 4 is an identification chart of each technical parameter mark for calculation in the axial conical roller position control in the rolling process of the ring rolling mill of the invention;
in the figure, 1-a radial rolling main roller, 2-a radial rolling core roller, 3-an axial rolling conical roller, 4-an axial rolling movable rack, 5-an outer diameter detection device and 6-an axial rolling movable rack servo oil cylinder.
Detailed Description
The present invention will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the invention, but are not intended to limit the invention in any way. It should be noted that variations and modifications can be made by persons skilled in the art without departing from the spirit of the invention. All falling within the scope of the present invention.
The radial-axial ring rolling mill applied by the radial-axial ring rolling mill axial conical roll position control system and method of the invention is shown in figures 1 and 2 and comprises a radial rolling main roll 1, a radial rolling core roll 2, an axial rolling conical roll 3, an axial rolling moving rack 4 and an outer diameter detection device 5. In the process of rolling the annular forge piece, a radial rolling core roller 2 feeds and is close to a radial rolling main roller 1 and an axial rolling conical roller 3, the size of the annular forge piece is gradually increased, the outer diameter of the annular forge piece is detected by an outer diameter detection device 5 and fed back to an axial conical roller position detection system, and the axial conical roller position detection system controls an axial rolling moving rack servo oil cylinder 6 to enable an axial rolling moving rack 4 to gradually retreat according to the increasing trend of the annular forge piece.
In the radial-axial ring rolling mill rolling process axial conical roll position control, the identification chart of each technical parameter mark used for calculation is shown in figure 4: the individual letter meanings are as follows:
d4 is the outer diameter of the annular forging;
e is the length of a conical roller rolling bus;
b is the minimum initial position of the conical roller;
f is the maximum outer diameter distance between the outer diameter detection device and the axial conical roller;
h is the distance between the outer diameter detection device and the outer diameter of the annular forging;
o is the distance from the point P to the left end of a conical roller bus when the outer diameter of the annular forging is at a certain fixed point P of the conical roller;
c is target data of the position of the conical roller and the minimum initial position of the conical roller when the outer diameter of the annular forge piece is at a certain fixed point P of the conical roller;
and C is actual feedback data of the position of the conical roller and the minimum initial position of the conical roller in rolling.
Example 1
The embodiment relates to a method for controlling the position of an axial conical roller of a radial-axial ring rolling mill, which is shown in figure 3 and is used for enabling the outer diameter of an annular forge piece to coincide with a fixed point P of the conical roller in the rolling process of the radial-axial ring rolling mill, so that the speeds of the conical roller and a main roller are consistent, and the phenomenon that the end face of the annular forge piece is folded is reduced, and the method specifically comprises the following steps:
The outer diameter of the annular forging is the horizontal distance B from the rear end face of the rolling starting point of the axial conical roller to the excircle of the main roller, the distance C from the position of the axial conical roller to the minimum rolling starting position of the axial conical roller, the maximum outer diameter distance F from the outer diameter detection device to the axial conical roller and the outer diameter distance H from the outer diameter detection device to the annular forging to obtain the outer diameter data D of the annular forging4＝B+C+F-H。
200, acquiring actual feedback data C of the position of the conical roller and the minimum initial position of the conical roller in rolling;
and step 400, obtaining the real-time position of the conical roller when the outer diameter of the annular forging is at the conical roller fixing point P.
The formula involved in the above method is as follows:
C-C＝D4-B+(E-O)-C
when C-C is greater than 0, the outer diameter of the annular forging is positioned on the right of a certain fixed point P of the conical roller, and the conical roller is required to retreat to the corresponding point C.
When C-C is less than 0, the outer diameter of the annular forging is positioned on the left side of a certain fixed point P of the conical roller, the conical roller is not moved, and C is waited.
D4 annular forging outer diameter; e, the rolling bus of the conical roller is long; b, rolling a minimum initial position by using a conical roller; when the outer diameter of the O-shaped ring forging is positioned at a certain fixed point P of the conical roller, the distance from the point P to the left end of a conical roller bus; when the outer diameter of the C annular forging is at a certain fixed point P of the conical roller, the conical roller is positioned at a target distance from the minimum initial rolling position of the conical roller; and C, the actual distance between the position of the conical roller and the minimum starting position of the conical roller in rolling.
The ring rolling mill of the present embodiment is a radial-axial ring rolling mill, which includes a radial rolling section and an axial rolling section. When the axial rolling part is close to or far away from the radial rolling part, the feeding amount of the axial rolling conical roller part is measured through a distance sensor in the axial conical roller oil cylinder, and the feeding amount is an actual feedback distance C between the axial conical roller position and the minimum initial position of the axial conical roller rolling.
The annular forge piece outer diameter data D4 is calculated through the horizontal distance B from the rear end face of the rolling starting point of the axial conical roller to the excircle of the main roller, the distance C from the position of the axial conical roller to the rolling minimum starting position of the axial conical roller, the maximum outer diameter distance F from the outer diameter detection device to the axial conical roller and the outer diameter distance H from the outer diameter detection device to the annular forge piece4＝B+C+F-H。
And when the minimum initial position B of the axial conical roller is rolled, the length E of a rolling bus and the outer diameter of the annular forging are positioned at a certain fixed point P of the conical roller, and the distance O from the point P to the left end of the conical roller bus is constant.
Example 2
The axial conical roller moving oil cylinder device related to the embodiment is internally provided with a displacement sensor, and the axial conical roller of the radial-axial ring rolling mill feeds back actual feeding data through the displacement sensor.
In the above embodiment, when the feeding of the axial conical roll device is obtained, the displacement sensor in the axial conical roll moving oil cylinder device is used for actually measuring the feeding amount of the axial conical roll device, and the displacement sensor finally feeds back the measured actual feeding amount data to the axial conical roll position control system of the ring rolling mill.
Example 3
In the axial conical roll position control according to the embodiment, the actual feed stroke of the conical roll is adjusted by the hydraulic servo control system according to the correction data obtained by comparing the actual feed amount feedback data of the conical roll with the target data, so that the target data of the conical roll stroke is approached.
In the above embodiment, the axial conical roll position control system of the ring rolling mill controls the actual feed stroke data of the axial conical roll according to the correction data obtained by comparing the actual feedback data of the conical roll feed amount with the target data, so that the outer diameter of the annular forging is at a certain fixed point P of the conical roll.
Example 4
In the method according to this embodiment, in step 100, there are multiple sets of data of the outer diameter distance between the outer diameter detection device and the outer diameter of the annular forging, the distance measurement device has multiple sets, and the measurement end of each distance measurement device faces a measurement point on the workpiece.
In the above embodiment, in actual production, in order to ensure the quality of the workpiece, in one case, a plurality of distance measuring devices may be installed to detect the diameters of the workpiece at different heights, so as to ensure the overall quality of the workpiece.
Example 5
The rolling process axial taper roll position control system of ring rolling mill includes: the device comprises a processing unit, a signal receiving module and a displacement sensor, wherein the signal output end of the displacement sensor is connected with the signal input end of the signal receiving module, the signal output end of the signal receiving module is connected with the processing unit, the displacement sensor is used for feeding back and measuring the feeding data of the axial conical rolls of the radial-axial ring rolling mill, the signal receiving module is used for transmitting the received data to the processing unit, and the processing unit is used for acquiring the data of the signal receiving module and operating a computer program.
When the signal receiving module is implemented in the form of a chip, the signal receiving module is a communication interface for the chip to receive signals or transmit signals from other chips or devices.
The processing unit is a processor or controller and may be a central processing unit, general purpose processor, digital signal processor, application specific integrated circuit, field programmable gate array, PLC or other programmable logic device, transistor logic, hardware component, or any combination thereof. Which may implement or perform logical blocks, modules, and circuits. The processor is a combination that performs a computing function, e.g., comprising one or more microprocessors in combination, a digital signal processor in combination with a microprocessor, or the like.
In the process of rolling the annular forge piece, the outer diameter of the annular forge piece is detected by the outer diameter detection device, when the outer diameter of the annular forge piece is positioned at a certain fixed point P of the conical roller, the target data of the position of the conical roller and the minimum initial position of the conical roller can be accurately calculated, and the position of the axial conical roller is controlled by the hydraulic servo control system through comparison with the actual feedback data of the position of the conical roller and the minimum initial position of the conical roller, so that the fixed point P of the conical roller is coincided with the outer diameter of the annular forge piece. Finally, in the process of rolling the annular forge piece, the speed of the conical roller is consistent with that of the main roller in the rolling process, the end face of the annular forge piece is prevented from being folded, the stability of the rolling process of the annular forge piece is improved, and a basis is provided for controlling the position of the axial conical roller of the annular forge piece.
The foregoing description of specific embodiments of the present invention has been presented. It is to be understood that the present invention is not limited to the specific embodiments described above, and that various changes and modifications may be made by one skilled in the art within the scope of the appended claims without departing from the spirit of the invention.
Claims (10)
1. A position control system for an axial conical roller of a radial-axial ring rolling mill is characterized by comprising: the device comprises a processing unit, a signal receiving module and a displacement sensor, wherein the signal output end of the displacement sensor is connected with the signal input end of the signal receiving module, the signal output end of the signal receiving module is connected with the processing unit, the displacement sensor is used for feeding back and measuring the feeding data of the axial conical rolls of the radial-axial ring rolling mill, the signal receiving module is used for transmitting the received data to the processing unit, and the processing unit is used for acquiring the data of the signal receiving module and operating a computer program.
2. The system for controlling the position of the axial conical roll of the radial-axial ring rolling mill according to claim 1, wherein the system for controlling the position of the axial conical roll of the radial-axial ring rolling mill is further provided with a driving oil cylinder, and the displacement sensor measures and feeds back the feeding amount of the output end of the driving oil cylinder.
3. A method for controlling the position of an axial conical roller of a radial-axial ring rolling mill by using the control system of any one of claims 1-2, which is characterized by comprising the following steps:
step 100, obtaining target data of a conical roller position and a conical roller rolling minimum initial position when the outer diameter of the annular forging is located at a certain fixed point P of a conical roller, wherein the target data are obtained by calculating the distance from a point P to the left end of a conical roller bus when the outer diameter of the annular forging, the axial conical roller rolling minimum initial position, the axial conical roller rolling bus length and the outer diameter of the annular forging are located at the certain fixed point P of the conical roller;
200, acquiring actual feedback data of the position of the conical roller and the minimum initial position of the conical roller in rolling;
step 300, acquiring the target data of the position of the conical roller and the minimum initial position of the conical roller in rolling and the correction data of the actual feedback data;
and step 400, acquiring the real-time position of the axial conical roller when the outer diameter of the annular forging is positioned at a certain fixed point P of the conical roller.
4. The method for controlling the position of the axial conical roller of the radial-axial ring rolling mill according to claim 3, wherein the step 400 is followed by obtaining the real-time position of the axial conical roller when the outer diameter of the annular forging is at a certain fixed point P of the conical roller, and comparing the target data of the conical roller position and the minimum initial rolling position of the conical roller when the outer diameter of the annular forging is at the certain fixed point P of the conical roller with the actual data of the conical roller position and the minimum initial rolling position of the conical roller to obtain the conical roller position correction data, and driving the axial conical roller oil cylinder by the hydraulic servo control system to control the position control system of the axial conical roller to move to the target feeding position.
5. The method for controlling the position of the axial conical roll of the radial-axial ring rolling mill according to claim 3, wherein in the step 100, a plurality of groups of real-time data of the outer diameter distance between the outer diameter detection device and the outer diameter of the annular forging are obtained; the distance measuring device is provided with a plurality of distance measuring devices, and the measuring end of each distance measuring device is opposite to a measuring point on the workpiece.
6. The position control method for the axial conical rolls of the radial-axial ring rolling mill according to claim 3, wherein the outer diameter of the annular forging is calculated by the horizontal distance from the rear end face of the rolling starting point of the axial conical roll to the outer circle of the main roll, the distance from the position of the axial conical roll to the rolling minimum starting position of the axial conical roll, the maximum outer diameter distance between the outer diameter detection device and the axial conical roll and the outer diameter distance between the outer diameter detection device and the annular forging.
7. The method for controlling the position of the axial conical roller of the radial-axial ring rolling mill according to claim 3, wherein the distance between the outer diameter detection device and the outer diameter of the annular forging is measured by a distance measurement device.
8. The method for controlling the position of the axial conical roll of the radial-axial ring rolling mill according to claim 3, wherein the conical roll position and the conical roll rolling minimum starting position data are obtained by detecting through a displacement detection device arranged on the axial conical roll device.
9. The method for controlling the position of the axial conical roll of the radial-axial ring rolling mill according to claim 3, wherein the actual feedback data of the conical roll position and the minimum initial rolling position of the conical roll is data of the relative position of the real-time position of the axial conical roll device and the minimum initial rolling position of the axial conical roll device detected by a displacement detection device arranged on the axial conical roll device.
10. The method for controlling the position of the axial conical rolls of the radial-axial ring rolling mill according to claim 4, wherein the hydraulic servo control system is composed of a hydraulic pump, a servo valve and a hydraulic cylinder.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210159243.4A CN114558964A (en) | 2022-02-21 | 2022-02-21 | System and method for controlling axial conical roller position of radial-axial ring rolling mill |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210159243.4A CN114558964A (en) | 2022-02-21 | 2022-02-21 | System and method for controlling axial conical roller position of radial-axial ring rolling mill |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116099965A (en) * | 2023-03-28 | 2023-05-12 | 山西天宝集团有限公司 | Automatic grinding device for new energy wind power generation T-shaped flange |
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| CN112264561A (en) * | 2020-12-15 | 2021-01-26 | 中国重型机械研究院股份公司 | Method and device for coordinated control of axial roller and radial main roller of ring rolling mill |
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2022
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| KR20110090423A (en) * | 2010-02-03 | 2011-08-10 | 서강대학교산학협력단 | Optimum design method for ring rolling schedule |
| EP2444176A1 (en) * | 2010-10-25 | 2012-04-25 | C. Groene Consulting, Unip LDA | Axial/radial ring rolling system |
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| CN112264561A (en) * | 2020-12-15 | 2021-01-26 | 中国重型机械研究院股份公司 | Method and device for coordinated control of axial roller and radial main roller of ring rolling mill |
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