CN110666238A - Shear blade gap adjusting device in hot shearing process of hobbing shear and calculating method thereof - Google Patents
Shear blade gap adjusting device in hot shearing process of hobbing shear and calculating method thereof Download PDFInfo
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- CN110666238A CN110666238A CN201910915527.XA CN201910915527A CN110666238A CN 110666238 A CN110666238 A CN 110666238A CN 201910915527 A CN201910915527 A CN 201910915527A CN 110666238 A CN110666238 A CN 110666238A
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- shear
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D35/00—Tools for shearing machines or shearing devices; Holders or chucks for shearing tools
- B23D35/005—Adjusting the position of the cutting members
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Abstract
The invention belongs to the technical field of clearance calculation methods, and particularly relates to a shear blade clearance adjusting device in a hot shearing process of rolling shear and a calculation method thereof, wherein the shear blade clearance adjusting device comprises the following steps: s1, placing the steel plate to be processed on a conveying device, and starting a transmission motor to enable the steel plate to be transmitted along the conveying direction of the conveying device; s2, when the steel plate is conveyed to the lower part of the connecting rod, the pyrometer transmits the sensed temperature of the steel plate to a receiving module in the MES system; and S3, transmitting the detected data of the thickness, the width and the material of the steel plate to an industrial personal computer by the MES system, and calculating according to the yield strength, the Poisson ratio, the Young modulus, the temperature, the width and the thickness data of the obtained metal plate to obtain the shearing blade gap value of the shearing steel plate of the roll cutting shear. The calculation method is simple and easy to understand, convenient to calculate and small in error, and can improve the efficiency and the precision of the hot shearing of the rolling shear. The method is used for calculating the blade clearance in the hot shearing process of the rolling shear.
Description
Technical Field
The invention belongs to the technical field of clearance calculation methods, and particularly relates to a shear blade clearance adjusting device in a hot shearing process of rolling shear and a calculation method thereof.
Background
The roll cutting shear is large-scale metal sheet shearing equipment and is one of core equipment for modern medium and heavy plate production. The main function is to finish the work of trimming and sampling of the plate. The shearing process of the metal plate with the temperature exceeding 150 ℃ belongs to hot shearing, and in the adjusting stage of the shearing blade gap of the roll cutting shear, the shearing blade gap needs to be properly adjusted towards the reduction direction along with the increase of the temperature of the produced metal plate so as to ensure that the production quality of the metal plate meets the requirement.
The traditional shear blade gap adjusting method is adjusted according to production experience, a specific calculation method is not provided, and quality accidents such as shear deformation and product roughness can be caused by gap values determined by workers according to the production experience.
Disclosure of Invention
Aiming at the technical problem, the device for adjusting the clearance of the cutting edge in the hot shearing process of the roll cutting shear with higher precision and the calculation method thereof are provided.
In order to solve the technical problems, the invention adopts the technical scheme that:
the utility model provides a roll and cut hot shearing process clearance adjustment device, includes support, motor, reduction gear, shaft coupling, jack, the jack has four, jack fixed connection is in the four corners at support top, be equipped with proximity switch on the jack, the jack has the motor through retarder connection, through transmission shaft and coupling joint between jack and the reduction gear, the bottom of jack is fixed with the connecting rod, the connecting rod is connected with the pull rod through the jaw, the pull rod is connected with the slide wedge through the jaw, be fixed with the slide wedge assembly on the support, slide wedge assembly and slide wedge laminating.
The jack is provided with an encoder, and the encoder is connected to a computer display screen through a wire.
The jack, the motor and the speed reducer are all fixed on the top of the bracket through bolts.
And one side of the bracket is provided with a conveying device.
The high-temperature-resistant and high-temperature-resistant multi-functional industrial personal computer is characterized in that a connecting rod is arranged between the supports, an infrared pyrometer is arranged on the connecting rod, the infrared pyrometer is connected with an MES system through a wire, and the MES system is connected with an industrial personal computer through a wire.
A method for calculating the blade clearance in the hot shearing process of rolling shear comprises the following steps:
s1, placing the steel plate to be processed on a conveying device, and starting a transmission motor to enable the steel plate to be transmitted along the conveying direction of the conveying device;
s2, when the steel plate is conveyed to the lower part of the connecting rod, the pyrometer transmits the sensed temperature of the steel plate to a receiving module in the MES system;
and S3, transmitting the detected data of the thickness, the width and the material of the steel plate to an industrial personal computer by the MES system, and calculating according to the yield strength, the Poisson ratio, the Young modulus, the temperature, the width and the thickness data of the obtained metal plate to obtain the shearing blade gap value of the shearing steel plate of the roll cutting shear.
The calculation method in S3 is that the calculation formula of the yield strength of the metal plate is:
e is the Young modulus of the metal plate, v is the Poisson ratio of the metal plate, alpha is the linear expansion coefficient of the metal plate, and T is the temperature of the thermal shearing metal plate;
from the definition of the linear expansion coefficient of the material:
the delta x is the transverse expansion amount of the metal plate, and the x is half of the width of the metal plate;
the above formula is arranged to obtain:
thereby obtaining
According to the adjustment of the clearance between the shear blades in the shearing process of the metal plateThe integral empirical formula delta-ah + c can obtain the value of the shear blade clearance in the hot shearing processThe delta is a shear blade gap, the a is a shear blade gap adjustment coefficient, the value of the a is 0.09, and the h is the thickness of the metal plate.
Compared with the prior art, the invention has the following beneficial effects:
according to the method, the gap value of the shear blade during hot shearing is calculated through calculation of the yield strength, the Poisson ratio, the Young modulus, the temperature, the width and the thickness data of the metal plate.
Drawings
FIG. 1 is a schematic front view of the present invention;
FIG. 2 is a schematic side view of the present invention;
FIG. 3 is a schematic top view of the present invention;
FIG. 4 is a flow chart of the operation of the present invention;
wherein: the device comprises a support 1, a motor 2, a speed reducer 3, a coupler 4, a jack 5, a proximity switch 6, a transmission shaft 7, a connecting rod 8, a fork 9, a pull rod 10, a wedge 11, a wedge assembly 12, a conveying device 13, a connecting rod 14, an infrared pyrometer 15, an MES system 16, an industrial personal computer 17 and an encoder 5-1.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The utility model provides a hobbing shear hot shear process clearance adjustment device, as shown in figure 1, 2, 3 is shown, which comprises a bracket 1, motor 2, reduction gear 3, shaft coupling 4, jack 5 has four, 5 fixed connection in the four corners at 1 top of support of jack, be equipped with proximity switch 6 on jack 5, jack 5 is connected with motor 2 through reduction gear 3, be connected through transmission shaft 7 and shaft coupling 4 between jack 5 and the reduction gear 3, the bottom of jack 5 is fixed with connecting rod 8, connecting rod 8 is connected with pull rod 10 through jaw 9, pull rod 10 is connected with slide wedge 11 through jaw 9, be fixed with slide wedge assembly 12 on the support 1, slide wedge assembly 12 and the laminating of slide wedge 11. The power of the gap adjusting device is arranged at the top of the upper cross beam, the motor 2 is positioned in the middle of the upper cross beam, the power is transmitted to the two transmission shafts 7 after being reduced by the speed reducer 3, the rotating directions of the front transmission shaft 7 and the rear transmission shaft 7 are opposite, then the power of the front transmission shaft and the rear transmission shaft is transmitted to the four jacks 5 on the periphery of the upper cross beam through the couplers 4 respectively, the four jacks 5 drive one wedge 12 to move up and down respectively, the four wedges 12 are front and rear positioning surfaces of the upper tool rest, and the rotating directions of the front two jacks 5 are opposite to the rotating directions of the. When the two tapered wedges 12 at the front end descend, the two tapered wedges 12 at the rear end inevitably ascend, and the shear blade gap is reduced; conversely, when the two front wedges 12 are raised, the two rear wedges 12 must be lowered, so that the cutting edge gap is increased. In this way, the thickness of the slide way is ensured to be unchanged no matter where the jack is located. If the upper and lower shear blades are not parallel or the gap is too large or too small, the size of the gap can be changed by adjusting the wire length of the pull rods 10 at the left and right ends. The jack is provided with an encoder 5-1 to accurately control the adjusted gap value, the specific gap value converts the displacement signal into a periodic electrical signal through the encoder 5-1, and the electrical signal is converted into counting pulses or digital codes and then displayed on a computer display screen.
Further, preferably, the jack 5 is provided with an encoder 5-1, and the encoder 5-1 is connected to a computer display screen through a wire.
Further, preferably, the jack 5, the motor 2 and the speed reducer 3 are all fixed on the top of the bracket 1 through bolts.
Further, one side of the bracket 1 is provided with a conveying device 13. The conveyor 13 conveys the steel plate to be processed below the connecting rods 14 of the frame 1.
Further, a connecting rod 14 is arranged between the supports 1, an infrared pyrometer 15 is arranged on the connecting rod 14, the infrared pyrometer 15 is connected with an MES system 16 through a wire, and the MES system 16 is connected with an industrial personal computer 17 through a wire.
A method for calculating the blade gap in the hot shearing process of rolling shear, as shown in FIG. 4, comprises the following steps:
s1, placing the steel plate to be processed on a conveying device, and starting a transmission motor to enable the steel plate to be transmitted along the conveying direction of the conveying device;
s2, when the steel plate is conveyed to the lower part of the connecting rod, the pyrometer transmits the sensed temperature of the steel plate to a receiving module in the MES system;
s3, transmitting the detected data of the thickness, the width and the material of the steel plate to an industrial personal computer by the MES system, and calculating the yield strength of the metal plate according to the obtained yield strength, Poisson ratio, Young modulus, temperature, width and thickness data of the metal plate, wherein the calculation formula of the yield strength of the metal plate is as follows:
e is the Young modulus of the metal plate, v is the Poisson ratio of the metal plate, alpha is the linear expansion coefficient of the metal plate, and T is the temperature of the thermally sheared metal plate;
from the definition of the linear expansion coefficient of the material:
delta x is the transverse expansion amount of the metal plate, and x is half of the width of the metal plate;
the above formula is arranged to obtain:
thereby obtaining
According to an empirical formula delta ah + c (5) for adjusting the clearance of the cutting edge in the shearing process of the metal sheet
In the stage of hot shearing of the metal plate, in order to ensure that the production quality of the plate meets the requirement, the blade gap needs to be adjusted in the direction of reducing, so that the blade gap value when the formula (4) is taken into the formula (5) for hot shearing is as follows:
delta is the cutting edge clearance, a is the cutting edge clearance adjustment coefficient, the value of a is 0.09, and h is the thickness of the metal plate.
The working process of the invention is as follows: the power of the clearance adjusting device is arranged at the top of the upper cross beam, the motor is positioned in the middle of the upper cross beam and is transmitted to the two transmission shafts after being decelerated by the speed reducer, the rotating directions of the front transmission shaft and the rear transmission shaft are opposite, then the power of the front transmission shaft and the rear transmission shaft is transmitted to the four jacks at the periphery of the upper cross beam through the couplers respectively, the four jacks drive one wedge to move up and down respectively, the four wedges are front and rear positioning surfaces of the upper tool rest, and the rotating directions of the front two jacks are opposite to the rotating directions of the rear two. When the two tapered wedges at the front end descend, the two tapered wedges at the rear end inevitably ascend, and the shear blade gap is reduced; conversely, when the two wedges at the front end rise, the two wedges at the rear end necessarily fall, so that the shear blade gap increases. In this way, the thickness of the slide way is ensured to be unchanged no matter where the jack is located. If the upper and lower shear blades are not parallel or the gap is too large or too small, the size of the gap can be changed by adjusting the wire length of the pull rods at the left and right ends. The jack is provided with an encoder to accurately control the adjusted gap value, the specific gap value converts the displacement signal into a periodic electrical signal through the encoder, and the electrical signal is converted into counting pulses or digital codes and then displayed on a computer display screen.
Although only the preferred embodiments of the present invention have been described in detail, the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art, and all changes are encompassed in the scope of the present invention.
Claims (7)
1. The utility model provides a hot process clearance adjustment device of rolling cut scissors which characterized in that: including support (1), motor (2), reduction gear (3), shaft coupling (4), jack (5) have four, jack (5) fixed connection is in the four corners at support (1) top, be equipped with proximity switch (6) on jack (5), jack (5) are connected with motor (2) through reduction gear (3), be connected through transmission shaft (7) and shaft coupling (4) between jack (5) and reduction gear (3), the bottom of jack (5) is fixed with connecting rod (8), connecting rod (8) are connected with pull rod (10) through jaw (9), pull rod (10) are connected with slide wedge (11) through jaw (9), be fixed with slide wedge assembly (12) on support (1), slide wedge assembly (12) and slide wedge (11) laminating.
2. The device for adjusting clearance in the hot shearing process of roller shear as claimed in claim 1, wherein: and the jack (5) is provided with an encoder (5-1), and the encoder (5-1) is connected to a computer display screen through a wire.
3. The device for adjusting clearance in the hot shearing process of roller shear as claimed in claim 1, wherein: the jack (5), the motor (2) and the speed reducer (3) are all fixed at the top of the support (1) through bolts.
4. The device for adjusting clearance in the hot shearing process of roller shear as claimed in claim 1, wherein: one side of the bracket (1) is provided with a conveying device (13).
5. The device for adjusting clearance in the hot shearing process of roller shear as claimed in claim 1, wherein: be equipped with connecting rod (14) between support (1), be equipped with infrared pyrometer (15) on connecting rod (14), infrared pyrometer (15) are connected with MES system (16) through the wire, MES system (16) are connected with industrial computer (17) through the wire.
6. A method for calculating the blade clearance in the hot shearing process of rolling shear is characterized by comprising the following steps: comprises the following steps:
s1, placing the steel plate to be processed on a conveying device, and starting a transmission motor to enable the steel plate to be transmitted along the conveying direction of the conveying device;
s2, when the steel plate is conveyed to the lower part of the connecting rod, the infrared pyrometer transmits the sensed temperature of the steel plate to a receiving module in the MES system;
and S3, transmitting the detected data of the thickness, the width and the material of the steel plate to an industrial personal computer by the MES system, and calculating according to the yield strength, the Poisson ratio, the Young modulus, the temperature, the width and the thickness data of the obtained metal plate to obtain the shearing blade gap value of the shearing steel plate of the roll cutting shear.
7. The method for calculating the blade clearance in the process of rolling shear and hot shear according to claim 1, wherein: the calculation method in S3 is that the calculation formula of the yield strength of the metal plate is:
e is the Young modulus of the metal plate, v is the Poisson ratio of the metal plate, alpha is the linear expansion coefficient of the metal plate, and T is the temperature of the thermal shearing metal plate;
from the definition of the linear expansion coefficient of the material:
the delta x is the transverse expansion amount of the metal plate, and the x is half of the width of the metal plate;
the above formula is arranged to obtain:
thereby obtaining
According to the empirical formula delta-ah + c for adjusting the clearance of the shear blade in the shearing process of the metal sheet, the clearance value of the shear blade in the hot shearing process is
The delta is a shear blade gap, the a is a shear blade gap adjustment coefficient, the value of the a is 0.09, and the h is the thickness of the metal plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910915527.XA CN110666238A (en) | 2019-09-26 | 2019-09-26 | Shear blade gap adjusting device in hot shearing process of hobbing shear and calculating method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910915527.XA CN110666238A (en) | 2019-09-26 | 2019-09-26 | Shear blade gap adjusting device in hot shearing process of hobbing shear and calculating method thereof |
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| CN110666238A true CN110666238A (en) | 2020-01-10 |
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| CN201910915527.XA Pending CN110666238A (en) | 2019-09-26 | 2019-09-26 | Shear blade gap adjusting device in hot shearing process of hobbing shear and calculating method thereof |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201338131Y (en) * | 2008-12-13 | 2009-11-04 | 太原科技大学 | Adjusting device for clearance between upper shearing edge and lower shearing edge of hydraulic rolling shear |
| JP2010137344A (en) * | 2008-12-15 | 2010-06-24 | Jfe Steel Corp | Shearing method of ferritic stainless steel plate having excellent shear-end-face corrosion resistance |
| CN103034199A (en) * | 2012-12-11 | 2013-04-10 | 济钢集团有限公司 | Control system and control method of bilateral scissors capable of fast shearing |
| CN203076693U (en) * | 2012-11-29 | 2013-07-24 | 一重集团大连设计研究院有限公司 | Shear edge backlash adjusting device of heavy-duty hydraulic shear of aluminum plate hot rolling unit |
| CN106843145A (en) * | 2017-04-24 | 2017-06-13 | 重庆钢铁(集团)有限责任公司 | A kind of bilateral scissors operator gap control device and computational methods |
| CN109465517A (en) * | 2018-12-17 | 2019-03-15 | 云南昆钢重型装备制造集团有限公司 | A kind of thermal expansion amount control method of NC Flame Cutting part of the steel plate size |
-
2019
- 2019-09-26 CN CN201910915527.XA patent/CN110666238A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201338131Y (en) * | 2008-12-13 | 2009-11-04 | 太原科技大学 | Adjusting device for clearance between upper shearing edge and lower shearing edge of hydraulic rolling shear |
| JP2010137344A (en) * | 2008-12-15 | 2010-06-24 | Jfe Steel Corp | Shearing method of ferritic stainless steel plate having excellent shear-end-face corrosion resistance |
| CN203076693U (en) * | 2012-11-29 | 2013-07-24 | 一重集团大连设计研究院有限公司 | Shear edge backlash adjusting device of heavy-duty hydraulic shear of aluminum plate hot rolling unit |
| CN103034199A (en) * | 2012-12-11 | 2013-04-10 | 济钢集团有限公司 | Control system and control method of bilateral scissors capable of fast shearing |
| CN106843145A (en) * | 2017-04-24 | 2017-06-13 | 重庆钢铁(集团)有限责任公司 | A kind of bilateral scissors operator gap control device and computational methods |
| CN109465517A (en) * | 2018-12-17 | 2019-03-15 | 云南昆钢重型装备制造集团有限公司 | A kind of thermal expansion amount control method of NC Flame Cutting part of the steel plate size |
Non-Patent Citations (1)
| Title |
|---|
| 靳湾湾: "多层金属热锻模热—机载荷计算与实验验证", 《中国优秀硕士学位论文全文数据库》 * |
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Application publication date: 20200110 |