CN111266417B - Hot rolling intermediate billet shearing crimping performance detection system - Google Patents
Hot rolling intermediate billet shearing crimping performance detection system Download PDFInfo
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- CN111266417B CN111266417B CN202010209429.7A CN202010209429A CN111266417B CN 111266417 B CN111266417 B CN 111266417B CN 202010209429 A CN202010209429 A CN 202010209429A CN 111266417 B CN111266417 B CN 111266417B
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- 238000010008 shearing Methods 0.000 title claims abstract description 78
- 238000002788 crimping Methods 0.000 title claims abstract description 41
- 238000001514 detection method Methods 0.000 title claims abstract description 17
- 238000005098 hot rolling Methods 0.000 title claims description 5
- 238000003825 pressing Methods 0.000 claims abstract description 62
- 230000006835 compression Effects 0.000 claims abstract description 45
- 238000007906 compression Methods 0.000 claims abstract description 45
- 230000009471 action Effects 0.000 claims abstract description 6
- 238000005520 cutting process Methods 0.000 claims description 53
- 238000006073 displacement reaction Methods 0.000 claims description 8
- 229910000831 Steel Inorganic materials 0.000 abstract description 6
- 239000010959 steel Substances 0.000 abstract description 6
- 238000012360 testing method Methods 0.000 abstract description 5
- 238000013461 design Methods 0.000 abstract description 4
- 238000011161 development Methods 0.000 abstract description 4
- 230000009467 reduction Effects 0.000 abstract description 4
- 238000012795 verification Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 15
- 238000005096 rolling process Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 7
- 230000007246 mechanism Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000003466 welding Methods 0.000 description 2
- 229910001315 Tool steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000033764 rhythmic process Effects 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B38/00—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B15/00—Arrangements for performing additional metal-working operations specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B15/0007—Cutting or shearing the product
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B15/00—Arrangements for performing additional metal-working operations specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B15/0007—Cutting or shearing the product
- B21B2015/0014—Cutting or shearing the product transversely to the rolling direction
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B2201/00—Special rolling modes
- B21B2201/06—Thermomechanical rolling
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Shearing Machines (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention relates to a hot-rolled intermediate billet shearing and crimping performance detection system, and belongs to the technical field of strip steel shearing and crimping. A force transducer is arranged on the upper end surface of the lifting platform, a pressure head of the driving device can be correspondingly pressed on the force transducer, and the lifting platform can move downwards along the guide post under the action of the downward pressing of the driving device; the fixed bottom plate is provided with a lower shear blade, the lifting platform is provided with an upper shear blade, the shearing surfaces of the upper shear blade and the lower shear blade are respectively provided with a crimping inclined surface and a shearing angle, the crimping inclined surfaces of the upper shear blade and the lower shear blade are positioned between the two shearing angles along the feeding direction of the intermediate blank, and partial superposition exists between the crimping inclined surfaces of the upper shear blade and the lower shear blade. The detection system can realize the test and verification of the optimal reduction ratio parameter, can acquire the shear force related parameter, can test and verify the optimal parameter of the horizontal overlapping amount, can provide accurate and reliable basic parameter data for the design and development of the shearing and compression joint device, and reduces the technical and economic risks of the shearing and compression joint device in engineering application.
Description
Technical Field
The invention belongs to the technical field of strip steel shearing and crimping, and particularly relates to a hot rolling intermediate billet shearing and crimping performance detection system.
Background
The traditional plate and strip hot continuous rolling finishing mill group production is carried out by rolling single intermediate billets, and the processes of threading, accelerated rolling, decelerating rolling, throwing steel, throwing tail and the like are unavoidable when entering the finishing mill group. Therefore, the head and tail thickness difference and the threading quality uniformity of the strip steel are difficult to ensure, and the rolling operation rate and the yield are limited to a certain extent.
With new and higher demands on sheet quality in the industries of automobiles, home appliances and the like, dimensional, shape accuracy, surface and internal quality have become equally important quality keys. The endless rolling technology of the hot rolled strip steel shows incomparable superiority in the aspects of ultrathin tropical rolling, plate thickness precision control, plate strip overall length performance stability control, productivity improvement and the like.
The intermediate billet connection technology is a key technology of endless rolling, and currently comprises the following steps: a roll-to-roll bonding method, a shear bonding method, a welding method, a mechanical bonding method, a reduction flame treatment bonding method, a direct electrical connection method, an induction heating bonding method, a laser welding method, and the like. The shearing and pressing method is favored because of the advantages of fast rhythm, small occupied area, good connecting effect and the like.
However, the technology is rarely applied at present, the performance and technical parameters of the shearing crimping are mainly from literature data, the force energy data are obtained by analogy, the design and development of the shearing crimping device are greatly hindered, and great technical and economic risks exist by perfect adjustment in the engineering application process.
Disclosure of Invention
In view of the above, the present invention aims to provide a hot rolled intermediate billet shear crimping performance detection system, so as to satisfy the offline test verification of the shear crimping performance and the technical parameters, thereby reducing the technical and economic risks of the shear crimping device in engineering application.
In order to achieve the above purpose, the present invention provides the following technical solutions:
A hot rolling intermediate billet shearing and crimping performance detection system comprises a fixed bottom plate, a lifting platform and a driving device; the lifting platform is arranged above the fixed bottom plate through the guide post, the driving end of the driving device is provided with a pressure head, the upper end face of the lifting platform is provided with a force transducer, the pressure head of the driving device can be correspondingly pressed on the force transducer, and the lifting platform can move downwards along the guide post under the action of the downward pressing of the driving device.
The fixed bottom plate is provided with a lower cutter holder, the lower cutter holder is detachably provided with a lower shear blade, the lifting platform is provided with an upper cutter holder, and the upper cutter holder is detachably provided with an upper shear blade; the shearing surfaces of the upper shearing blade and the lower shearing blade are respectively provided with a crimping inclined surface and a shearing angle, wherein the shearing angle is positioned in the middle of each shearing surface, and the crimping inclined surfaces are positioned on one side of the shearing angle; along the feeding direction of the intermediate blank, the compression joint inclined plane of the upper cutting edge and the lower cutting edge are positioned between two cutting angles, and the compression joint inclined plane of the upper cutting edge and the compression joint inclined plane of the lower cutting edge are partially overlapped.
Further, a lower pressing device matched with the lower cutting edge is arranged on the fixed bottom plate, an upper pressing device matched with the upper cutting edge is arranged on the lifting platform, and along with the downward movement of the lifting platform, the upper pressing device presses the upper side face of one end of the intermediate blank, and the lower pressing device correspondingly pushes the lower side face of the other end of the intermediate blank.
Further, the lower compressing device comprises a guide rod I, a compression spring I and a lower compressing block; the lower end of the guide rod I is arranged on the fixed bottom plate, the lower compression block is sleeved on the guide rod I through a step through hole arranged on the lower compression block and can slide up and down along the guide rod I, the compression spring I is arranged between the lower compression block and the fixed bottom plate, and the lower compression block is positioned at the top end of the guide rod I under the action of the compression spring I.
The upper compressing device comprises a guide rod II, a compression spring II and an upper compressing block; the upper end of the guide rod II is arranged on the lifting platform, the upper compression block is sleeved on the guide rod II through a step through hole arranged on the upper compression block and can slide up and down along the guide rod II, and the compression spring II is arranged between the upper compression block and the lifting platform.
Further, the top pressing end surface of the lower pressing block is an inclined surface, and the inclined direction and the inclined angle of the top pressing end surface are consistent with the pressing inclined surface of the lower cutting edge; the pressing end face of the upper pressing block is an inclined face, and the inclined direction and the inclined angle of the pressing end face are consistent with the pressing inclined face of the upper shearing blade.
Further, the crimping inclined surface of the upper cutting edge and the crimping inclined surface of the lower cutting edge are mutually parallel.
Further, a compression spring III is sleeved on the guide post between the fixed bottom plate and the lifting platform.
Further, the lower shear blade is detachably connected with the lower tool apron through a locking stud and a locking block, a plurality of gaskets are arranged between the connecting end surfaces of the lower shear blade and the lower tool apron, the locking stud sequentially penetrates through the lower tool apron, the gaskets and the lower shear blade and then is connected and fastened with the locking block, and the locking block is positioned in an installation slot hole of the lower shear blade.
Correspondingly, the upper cutting edge is detachably connected with the upper cutter holder through a locking stud and a locking block, a plurality of gaskets are also arranged between the upper cutting edge and the connecting end face of the upper cutter holder, and the locking stud sequentially passes through the upper cutter holder, the gaskets and the upper cutting edge and then is connected and fastened with the locking block, and the locking block is positioned in the mounting groove hole of the upper cutting edge.
Further, the pressure head correspondingly pressed on the force transducer is a ball head.
Further, the driving device is a hydraulic cylinder which is arranged on a hydraulic cylinder bracket, and a linear displacement sensor is arranged on the hydraulic cylinder.
Further, the hydraulic cylinder support is fixedly arranged on the fixed bottom plate.
The invention has the beneficial effects that:
The detection system adopts a mode of controlling the travel of the hydraulic cylinder by adopting a linear displacement sensor, so that the test and verification of the optimal reduction ratio parameter can be realized. The force generated in the process of shearing and crimping the intermediate blank is detected by a force transducer so as to obtain the related parameters of the shearing force. The overlapping amount of the upper and lower cutting edges which are detachably arranged can be adjusted, so that the optimal parameters of the horizontal overlapping amount can be tested and verified, and accurate and reliable basic parameter data are provided for the design and development of the shearing and crimping device; and simultaneously, the technical and economic risks of the shearing crimping device in engineering application are reduced.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objects and other advantages of the invention may be realized and obtained by means of the instrumentalities and combinations particularly pointed out in the specification.
Drawings
For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in the following preferred detail with reference to the accompanying drawings, in which:
FIG. 1 is a schematic diagram of a hot rolled intermediate billet shear crimping performance detection system;
FIG. 2 is a side view of the overall structure of a hot rolled intermediate billet shear crimp performance detection system;
FIG. 3 is a schematic view of the structure of the lower cutting edge;
FIG. 4 is a schematic view of the structure of the upper cutting edge;
FIG. 5 is a schematic view of the structure of the lower compressing device;
Fig. 6 is a schematic structural view of the upper compressing device.
Reference numerals:
A fixed bottom plate-1; lifting platform-2; a driving device-3; a guide post-4; a pressure head-5; a load cell-6; a lower knife holder-7; lower shear blade-8, crimp bevel-801, shear angle-802; an upper tool apron-9; an upper shear blade-10, a crimping inclined surface-1001 and a shear angle-1002; intermediate blank-11; compression spring III-12; bond-13; a lower pressing device-14, a guide rod I-1401, a compression spring I-1402 and a lower pressing block-1403; an upper pressing device-15, a guide rod II-1501, a compression spring II-1502 and an upper pressing block-1503; locking the stud 16; a locking block-17; a gasket-18; locking the stud-19; locking block-20; a gasket-21; a hydraulic cylinder bracket-22; a linear displacement sensor-23; horizontal gap-L.
Detailed Description
Other advantages and effects of the present invention will become apparent to those skilled in the art from the following disclosure, which describes the embodiments of the present invention with reference to specific examples. The invention may be practiced or carried out in other embodiments that depart from the specific details, and the details of the present description may be modified or varied from the spirit and scope of the present invention. It should be noted that the illustrations provided in the following embodiments merely illustrate the basic idea of the present invention by way of illustration, and the following embodiments and features in the embodiments may be combined with each other without conflict.
Wherein the drawings are for illustrative purposes only and are shown in schematic, non-physical, and not intended to limit the invention; for the purpose of better illustrating embodiments of the invention, certain elements of the drawings may be omitted, enlarged or reduced and do not represent the size of the actual product; it will be appreciated by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
The same or similar reference numbers in the drawings of embodiments of the invention correspond to the same or similar components; in the description of the present invention, it should be understood that, if there are terms such as "upper", "lower", "left", "right", "front", "rear", etc., that indicate an azimuth or a positional relationship based on the azimuth or the positional relationship shown in the drawings, it is only for convenience of describing the present invention and simplifying the description, but not for indicating or suggesting that the referred device or element must have a specific azimuth, be constructed and operated in a specific azimuth, so that the terms describing the positional relationship in the drawings are merely for exemplary illustration and should not be construed as limiting the present invention, and that the specific meaning of the above terms may be understood by those of ordinary skill in the art according to the specific circumstances.
Referring to fig. 1 to 6, a hot rolled intermediate billet shearing and crimping performance detection system comprises a fixed bottom plate 1, a lifting platform 2 and a driving device 3; the lifting platform 2 is arranged above the fixed bottom plate 1 through the guide post 4, the driving end of the driving device 3 is provided with a pressure head 5, the upper end face of the lifting platform 2 is provided with a force transducer 6, the pressure head 5 of the driving device 3 can be correspondingly pressed on the force transducer 6, and the lifting platform 2 can move downwards along the guide post 4 under the action of the downward pressing of the driving device 3. A force transducer 6 is correspondingly arranged between the pressure head 5 of the driving device 3 and the lifting platform 2, so that the shearing force below the lifting platform 2 can be detected in real time.
The fixed bottom plate 1 is provided with a lower cutter holder 7, the lower cutter holder 7 is detachably provided with a lower cutting edge 8, the lifting platform 2 is provided with an upper cutter holder 9, and the upper cutter holder 9 is detachably provided with an upper cutting edge 10; the shearing surface of the upper shearing blade 10 is provided with a crimping inclined surface 1001 and a shearing angle 1002, the shearing surface of the lower shearing blade 8 is correspondingly provided with a crimping inclined surface 801 and a shearing angle 802, the two shearing angles are correspondingly arranged in the middle of the shearing surfaces of the two shearing blades, and the two crimping inclined surfaces are correspondingly arranged on one side of the shearing angles; specifically, along the feeding direction (or opposite to the feeding direction) of the intermediate blank 11, the crimp slopes 1001, 801 of the upper and lower blades 10, 8 are located between the two cutting angles 1002, 802, and there is a partial overlap between the crimp slope 1001 of the upper blade and the crimp slope 801 of the lower blade, which is the crimp portion of the intermediate blank 11.
The system also comprises a lifting reset mechanism for driving the lifting platform 2, wherein the lifting platform 2 is driven by the driving device 3 to move downwards, and when the shearing and crimping are finished, the lifting platform 2 can be driven by the lifting reset mechanism to move upwards along the guide post 4. The lifting resetting mechanism can be used as a hydraulic cylinder, an air cylinder and the like.
In this embodiment, a compression spring iii 12 is sleeved on the guide post 4 between the fixed bottom plate 1 and the lifting platform 2. The compression spring iii 12 acts as a lifting return mechanism which urges the lifting platform 2 up along the guide post 4.
Specifically, the fixing base plate 1 in this embodiment is a welded steel structure, and provides support for the entire system. The four guide posts 4 respectively penetrate through four guide holes at four corners of the lifting platform 2 and are used for guiding the lifting platform 2. The compression springs III 12 are respectively sleeved on the four guide posts 4 and used for providing restoring force for the lifting platform 2, and when the driving device 3 retracts, the lifting platform 2 can be driven to ascend and reset.
Because the upper part of the lifting platform 2 is provided with the force transducer 6, the lower part is provided with a set of shearing device, namely an upper shearing blade 10 arranged on the lifting platform 2 through an upper cutter holder 9 and a lower shearing blade 8 arranged on the fixed bottom plate 1 through a lower cutter holder 7. The upper cutting edge 10 moves downwards to be matched with the lower cutting edge 8 under the drive of the driving device 3, so as to perform shearing and crimping on the intermediate blank 11. Because the shearing surfaces of the upper and lower shearing blades are provided with the crimping inclined surfaces and the shearing angles, when the upper shearing blade 10 moves downwards, the upper shearing blade is matched with the lower shearing blade 8 to squeeze the intermediate blank 11, and then the shearing crimping process is completed. The upper cutting edge 10 and the lower cutting edge 8 are made of tool steel. When the drive means 3 is retracted, the compression spring iii 12 urges the lifting platform 2 to return with the upper cutting edge 10 mounted thereon.
In this embodiment, the upper tool apron 9 and the lower tool apron 7 are correspondingly mounted and fixed on the lifting platform 2 and the fixed bottom plate 1 through bolts and keys 13.
The detection system adopts a force transducer 6 to detect the acting force generated in the process of shearing and crimping the intermediate blank 11 so as to acquire the related parameters of the shearing force. The overlapping amount of the upper and lower cutting edges which are detachably arranged can be adjusted, so that the optimal parameters of the horizontal overlapping amount can be tested and verified, and accurate and reliable basic parameter data are provided for the design and development of the shearing and crimping device; and simultaneously, the technical and economic risks of the shearing crimping device in engineering application are reduced.
As a further optimization of the scheme, the fixed bottom plate 1 is provided with a lower pressing device 14 matched with the lower shearing blade 8, the lifting platform 2 is provided with an upper pressing device 15 matched with the upper shearing blade 10, the upper pressing device 15 presses the upper side surface of one end of the intermediate blank 11 along with the downward movement of the lifting platform 2, and the lower pressing device 14 correspondingly abuts against the lower side surface of the other end of the intermediate blank 11. The upper and lower sets of compacting devices are arranged on the fixed bottom plate 1 and the lifting platform 2 respectively and are used for correspondingly compacting the belt head and the belt tail of the intermediate blank 11 in the shearing and pressing process, so that the warping is avoided.
Specifically, the lower pressing device 14 includes a guide rod i 1401, a compression spring i 1402, and a lower pressing block 1403; wherein, the lower extreme of guide bar I1401 is installed on fixed bottom plate 1, and lower compact heap 1403 is through setting up step through-hole suit on it on guide bar I1401 and can follow guide bar I1401 and slide from top to bottom, compression spring I1402 sets up between lower compact heap 1403 and fixed bottom plate 1, under compression spring I1402's effect, and lower compact heap 1403 is located the top of guide bar I1401. The upper pressing device 15 comprises a guide rod II 1501, a compression spring II 1502 and an upper pressing block 1503; wherein, guide bar II 1501's upper end is installed on lift platform 2, goes up compact heap 1503 through the step through-hole suit that sets up above that on guide bar II 1501 and can follow guide bar II 1501 and slide from top to bottom, compression spring II 1502 sets up between last compact heap 1503 and lift platform 2. The guide rods i 1401 and ii 1501 of the lower and upper compressing devices 14 and 15 are used to provide lifting guide for the lower and upper compressing blocks 1403 and 1503, and the compression springs i 1402 and ii 1502 provide compressing force correspondingly.
Preferably, the top pressing end surface of the lower pressing block 1403 is an inclined surface, and the inclined direction and the inclined angle of the top pressing end surface are consistent with the pressing inclined surface 801 of the lower cutting edge 8; the pressing end surface of the upper pressing block 1503 is a slope, and its inclination direction and inclination angle are identical to those of the crimp slope 1001 of the upper blade 10. Preferably, the crimp slope 1001 of the upper blade and the crimp slope 801 of the lower blade are disposed parallel to each other. The surfaces of the upper and lower pressing blocks are set to be at the same inclination angle as the pressing inclined planes 801 and 1001, so that the upper and lower cutting edges can be matched well to press the head and tail of the intermediate blank 11, the upper pressing block descends in the shearing and pressing process of the intermediate blank, and ascends and resets after the shearing is completed.
In this embodiment, the lower cutting edge 8 is detachably connected with the lower blade holder 7 through a locking stud 16 and a locking block 17, a plurality of gaskets 18 are arranged between the connecting end surfaces of the lower cutting edge 8 and the lower blade holder 7, and the locking stud sequentially passes through the lower blade holder 7, the gaskets 18 and the lower cutting edge 8 and then is connected and fastened with the locking block 17, and the locking block 17 is correspondingly positioned in the mounting slot hole of the lower cutting edge 8. Correspondingly, the upper cutting edge 10 is detachably connected with the upper cutter holder 9 through a locking stud 19 and a locking block 20, a plurality of gaskets 21 are also arranged between the upper cutting edge 10 and the connecting end face of the upper cutter holder 9, and the locking stud passes through the upper cutter holder 9, the gaskets and the upper cutting edge 10 for 19 times and then is connected and fastened with the locking block 20, and the locking block 20 is positioned in the mounting groove hole of the upper cutting edge 10. The locking stud and the locking block are used for correspondingly locking and fixing the upper and lower shearing blades and the (superposition amount adjusting) gaskets on the upper and lower tool holders. The gaskets are a plurality of thin plates which can be combined for use, are arranged between the cutting edges and the tool apron and are used for adjusting the superposition amount between the two cutting edges, namely, the horizontal gap L between the upper cutting edge and the lower cutting edge can be adjusted by changing the number of the gaskets.
In this embodiment, the pressing head 5 correspondingly pressed against the load cell 6 is a ball head. The driving device 3 is a hydraulic cylinder and is arranged on a hydraulic cylinder bracket 22, and the hydraulic cylinder bracket 22 is fixedly arranged on the fixed bottom plate 1; the hydraulic cylinder is provided with a linear displacement sensor 23. The cylinder support 22 is here directly connected to the fixed base plate 1 for providing support for the cylinder. And the linear displacement sensor 23 is arranged at the tail part of the hydraulic cylinder, the pressure head 5 is arranged at the top part of the hydraulic cylinder, and the pressure head 5 is matched with the force transducer 6 and is used for pressing down the lifting platform 2 to provide shearing force. The linear displacement sensor 23 can control the hydraulic cylinder stroke, in this way test verification of the optimum reduction ratio parameter can be achieved.
Principle of operation
When the intermediate blank 11 needs to be sheared, the hydraulic cylinder presses down the lifting platform 2 to drive the upper shearing blade 10 to move downwards, the compression spring III 12 contracts, after the upper shearing blade and the lower shearing blade are contacted with the intermediate blank 11, the lower pressing device 14 and the upper pressing device 15 respectively press the belt head and the belt tail of the intermediate blank 11 to start shearing and pressing the intermediate blank, and the shearing force is detected by the force transducer 6 between the hydraulic cylinder and the lifting platform 2 in real time; the continuous pressing down of the hydraulic cylinder is controlled by the linear displacement sensor 23, the shearing and pressing connection of the intermediate blank 11 are completed, when the pressing down stroke of the hydraulic cylinder reaches a set value, the hydraulic cylinder stops pressing down and rises and resets, at the moment, the compression spring III 12 drives the lifting platform 2 to rise upwards along with the hydraulic cylinder, and the hydraulic cylinder stops after reset, so that the shearing and pressing connection of one time is completed. When it is desired to adjust the amount of overlap between the upper and lower cutting edges, the number of shims 18, 21 is increased or decreased.
Finally, it is noted that the above embodiments are only for illustrating the technical solution of the present invention and not for limiting the same, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made thereto without departing from the spirit and scope of the present invention, which is intended to be covered by the claims of the present invention.
Claims (5)
1. A hot rolling intermediate billet shearing crimping performance detection system is characterized in that: comprises a fixed bottom plate, a lifting platform and a driving device; the lifting platform is arranged above the fixed bottom plate through a guide post, a pressure head is arranged at the driving end of the driving device, a force transducer is arranged at the upper end face of the lifting platform, the pressure head of the driving device can be correspondingly pressed on the force transducer, and the lifting platform can move downwards along the guide post under the action of the downward pressing of the driving device;
The fixed bottom plate is provided with a lower cutter holder, the lower cutter holder is detachably provided with a lower shear blade, the lifting platform is provided with an upper cutter holder, and the upper cutter holder is detachably provided with an upper shear blade; the shearing surfaces of the upper shearing blade and the lower shearing blade are respectively provided with a crimping inclined surface and a shearing angle, wherein the shearing angle is positioned in the middle of each shearing surface, and the crimping inclined surfaces are positioned on one side of the shearing angle; the press-connection inclined plane of the upper cutting edge and the lower cutting edge are positioned between two cutting angles along the feeding direction of the intermediate blank, and the press-connection inclined plane of the upper cutting edge and the press-connection inclined plane of the lower cutting edge are partially overlapped;
The fixed bottom plate is provided with a lower pressing device matched with the lower cutting edge, the lifting platform is provided with an upper pressing device matched with the upper cutting edge, the upper pressing device presses the upper side surface of one end of the intermediate blank along with the downward movement of the lifting platform, and the lower pressing device correspondingly pushes the lower side surface of the other end of the intermediate blank;
The lower compressing device comprises a guide rod I, a compression spring I and a lower compressing block; the lower end of the guide rod I is arranged on the fixed bottom plate, the lower compression block is sleeved on the guide rod I through a step through hole arranged on the lower compression block and can slide up and down along the guide rod I, the compression spring I is arranged between the lower compression block and the fixed bottom plate, and the lower compression block is positioned at the top end of the guide rod I under the action of the compression spring I;
The upper compressing device comprises a guide rod II, a compression spring II and an upper compressing block; the upper end of the guide rod II is arranged on the lifting platform, the upper compression block is sleeved on the guide rod II through a step through hole arranged on the guide rod II and can slide up and down along the guide rod II, and the compression spring II is arranged between the upper compression block and the lifting platform;
the crimping inclined surface of the upper shear blade and the crimping inclined surface of the lower shear blade are mutually parallel;
The pressure head correspondingly pressed and connected on the force transducer is a ball head;
The driving device is a hydraulic cylinder which is arranged on a hydraulic cylinder bracket, and a linear displacement sensor is arranged on the hydraulic cylinder.
2. The hot rolled intermediate billet shear crimp performance detection system of claim 1, wherein: the top pressing end surface of the lower pressing block is an inclined surface, and the inclined direction and the inclined angle of the top pressing end surface are consistent with the pressing inclined surface of the lower cutting edge; the pressing end face of the upper pressing block is an inclined face, and the inclined direction and the inclined angle of the pressing end face are consistent with the pressing inclined face of the upper shearing blade.
3. The hot rolled intermediate billet shear crimping performance detection system according to claim 1 or 2, characterized in that: the guide post between the fixed bottom plate and the lifting platform is sleeved with a compression spring III.
4. The hot rolled intermediate billet shear crimp performance detection system of claim 1, wherein: the lower shear blade is detachably connected with the lower cutter holder through a locking stud and a locking block, a plurality of gaskets are arranged between the connecting end surfaces of the lower shear blade and the lower cutter holder, the locking stud sequentially penetrates through the lower cutter holder, the gaskets and the lower shear blade and then is connected and fastened with the locking block, and the locking block is positioned in a mounting slot hole of the lower shear blade;
Correspondingly, the upper cutting edge is detachably connected with the upper cutter holder through a locking stud and a locking block, a plurality of gaskets are also arranged between the upper cutting edge and the connecting end face of the upper cutter holder, and the locking stud sequentially passes through the upper cutter holder, the gaskets and the upper cutting edge and then is connected and fastened with the locking block, and the locking block is positioned in the mounting groove hole of the upper cutting edge.
5. The hot rolled intermediate billet shear crimp performance detection system of claim 1, wherein: the hydraulic cylinder support is fixedly arranged on the fixed bottom plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010209429.7A CN111266417B (en) | 2020-03-23 | 2020-03-23 | Hot rolling intermediate billet shearing crimping performance detection system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010209429.7A CN111266417B (en) | 2020-03-23 | 2020-03-23 | Hot rolling intermediate billet shearing crimping performance detection system |
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| CN111266417A CN111266417A (en) | 2020-06-12 |
| CN111266417B true CN111266417B (en) | 2024-04-30 |
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| CN117548727A (en) * | 2024-01-11 | 2024-02-13 | 沧州科诺机械制造有限公司 | Metal plate shearing device |
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|---|---|
| CN111266417A (en) | 2020-06-12 |
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