Convenient and movable steel plate constraint corrector in steel box girder manufacturing process

Abstract

The invention discloses a convenient and movable steel plate constraint straightener used in the steel box girder manufacturing process, and relates to the technical field of steel box girder machining. The supporting mechanism is used for bearing all structures, the traction rod is connected with traction equipment, the jacking mechanism is used for jacking and correcting a steel plate, the correcting mechanism is matched with the jacking mechanism to support the steel plate, and the driving assembly is used for driving the correcting mechanism to move. The jacking mechanisms are distributed on the two sides of the middle of the supporting part, the two correcting mechanisms are slidably connected to the two ends of the supporting part respectively, each correcting mechanism is provided with an abutting part and supports the side edge of a steel plate, and the driving assembly is arranged on the supporting part and connected with the two correcting mechanisms. The correction effect on the upwarp of the steel plate of the steel box girder can be improved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of steel box girder processing, in particular to a convenient and movable steel plate constraint corrector in a steel box girder manufacturing process. BACKGROUND

[0002] With the rapid development of the national economy, the city construction scale is continuously expanded, and the steel box girder is widely applied in urban overpasses and cross-line bridges due to the characteristics of light structure and rapid construction in road bridges.

[0003] The steel box girder is formed by material building, welding and other processes of the steel plate in a processing factory. In the production process of the steel box girder, the steel plate is deformed due to non-standard operation during stacking, transportation, transfer and welding, especially in the process of welding combination of different components. The steel plate is easily deflected in the parts with more component welding due to local heating.

[0004] The pressure machine is often used to correct the deflection of the steel plate. After the lower pressing head of the pressure machine is aligned with the deflection surface of the steel plate, the deflection deformation area is gradually restored by slow pressure. However, when facing the steel plate with a large deflection surface, the coverage area of the lower pressing head of the pressure machine is small, and multiple pressure is required for the deflection surface, which not only affects the correction efficiency, but also easily causes over-correction in some areas, resulting in work hardening of the steel plate. Therefore, a new technical scheme is provided. SUMMARY

[0005] In order to improve the correction effect of the deflection of the steel plate of the steel box girder, the application provides a convenient and movable steel plate constraint corrector in a steel box girder manufacturing process.

[0006] The application provides a convenient and movable steel plate constraint corrector in a steel box girder manufacturing process, which adopts the following technical scheme:

[0007] A convenient and movable steel plate constraint corrector in a steel box girder manufacturing process comprises:

[0008] The support mechanism has a support part and a length greater than the width of the steel box girder;

[0009] The traction rod is detachably connected to the support part of the support mechanism and is used for connection with a preset traction device;

[0010] The jacking mechanism is a plurality of groups, is arranged below the support mechanism and is distributed on both sides of the middle part of the support part, and the jacking direction is perpendicular to the cross beam;

[0011] The two groups of correction mechanisms are slidably connected to the two ends of the support part of the support mechanism and have a sliding direction along the length direction of the support part, and the abutting part is used for supporting the side edges of the steel plate to be corrected;

[0012] A driving assembly connected to the straightening mechanism and used to drive the straightening mechanism to slide;

[0013] A controller electrically connected to the jacking mechanism and the driving assembly;

[0014] The traction rod is arranged in the support part and provided with a roller set at the lower end, and the roller set abuts against the surface of the steel plate to be straightened. The straightening mechanism has a connecting part and is provided with a laser ranging sensor I. The laser ranging sensor I is located above the steel plate to be straightened and has a detection end horizontally arranged towards the other set of straightening mechanisms. The laser ranging sensor I is electrically connected to the controller and is configured to:

[0015] L1 represents the width of the steel plate and obtains the standard width of the steel plate to be straightened and defines X1.

[0016] If the user assigns a value to L1 and L1 = X1, when the detection value of the laser ranging sensor I > X1, the two straightening mechanisms are controlled to approach each other.

[0017] If the detection value of the laser ranging sensor I = X1, the jacking mechanism is controlled to jack up.

[0018] Optionally, the support mechanism includes two support beams for connecting the structures and a connecting beam connecting the two support beams. The two support beams are arranged transversely side by side, and a plurality of fixing holes for fixing the connecting beam are formed in the side walls. Limiting plates are respectively fixed to the upper and lower sides of the side walls of the support beam. The connecting beam is located between the two limiting plates and is fixedly connected to the two support beams at both ends. The two sets of straightening mechanisms are respectively slidably connected to the two support beams.

[0019] Optionally, the straightening mechanism includes a positioning plate for clamping the steel plate to be straightened and a supporting plate for supporting the steel plate to be straightened. The positioning plate is slidably arranged at the end of the support beam and is arranged vertically. The supporting plate is fixedly connected to the side wall of the positioning plate towards the steel plate to be straightened and is located below the steel plate to be straightened. The laser ranging sensor I is fixedly connected to one side of the positioning plate towards the steel plate to be straightened. The side wall of the positioning plate is provided with a correction assembly for adjusting the relative position of the support beam and the steel plate to be straightened.

[0020] Optionally, the driving assembly includes two racks, a driving gear and a driving motor I. The upper surface of the support beam is connected with a support frame. The driving motor I is fixedly connected in the support frame, and the output shaft of the driving motor I is arranged vertically downward. The driving gear is coaxially fixedly connected with the output shaft of the driving motor I. The surface of the limiting plate is provided with two sliding grooves for the two racks to slide, and the two sliding grooves are arranged transversely on the front and rear sides of the driving gear. The side wall of the rack towards the driving gear is provided with a tooth structure engaged with the driving gear. The positioning plate is fixedly connected with the rack.

[0021] Optionally, the correction assembly comprises telescopic springs and a correction plate, the positioning plate is provided with an embedding groove on the side wall facing the steel plate to be corrected, the telescopic springs are fixedly connected in the embedding groove and connected with the correction plate, the end of the correction plate extends out of the embedding groove and abuts against the steel plate to be corrected, and the embedding groove is provided with a width greater than that of the correction plate.

[0022] Optionally, the jacking mechanism comprises a jacking unit one for jacking the support beam and a fixed shell for holding the jacking unit one, the fixed shell is fixedly connected to the lower surface of the support beam, the jacking unit one is arranged in the fixed shell, the telescopic end of the jacking unit one is arranged vertically upward, the fixed shell is provided with a moving port on the lower surface for the base of the jacking unit one to pass through and extend to contact the surface of the steel plate to be corrected, the fixed shell is provided with a baffle in the cavity for limiting the jacking unit one to extend out of the moving port, and the fixed shell is provided with an opening on one side for the baffle to move out, the lower side of the support beam is slidably connected with a detection assembly for detecting the deformation of the steel plate to be corrected, and the sliding direction is the length direction of the support beam.

[0023] Optionally, the detection assembly comprises a driving motor two, a threaded rod, a sliding block and a laser ranging sensor two, the opposite side walls of the two support beams are provided with accommodating grooves along the length direction, the driving motor two is fixedly connected in the accommodating groove of any segment of the support beam, and the output shaft of the driving motor two faces the other segment of the support beam, the threaded rod is coaxially fixedly connected to the output shaft of the driving motor two and has a length smaller than that of the two segments of the support beam, the lower surfaces of the two support beams are provided with through grooves, the through grooves are open downward and communicate with the accommodating grooves, the sliding block is threadedly connected to the threaded rod and abuts against the inner wall of the accommodating groove, and the laser ranging sensor two is fixedly connected to the lower surface of the sliding block and located in the through groove, the detection end of the laser ranging sensor two is arranged vertically downward, and the laser ranging sensor two and the driving motor two are respectively electrically connected to the controller and configured to:

[0024] if the user-initiated detection instruction of the steel plate to be corrected is received, the driving motor two is controlled to act;

[0025] the real-time detection value fed back by the laser ranging sensor two is acquired and marked as a1;

[0026] a1 is compared with a preset standard distance value a2, and if the comparison result is a1

[0027] Optionally, the side walls of the positioning plates facing each other are horizontally fixed with a support plate, the support plate abuts against the support beam, the lower surface of the support plate is fixedly connected with a jacking unit two, the telescopic end of the jacking unit two is arranged vertically downward and fixedly connected with a pressing rod, the pressing rod extends perpendicularly to the length direction of the support beam, and the jacking unit two is electrically connected to the controller and configured to:

[0028] Obtaining the comparison result of a1 and a2, if the comparison result a1>a2, the jacking unit two is controlled to jacking.

[0029] In summary, the present application has the following beneficial technical effects: the jacking mechanism for jacking the steel plate to be corrected is distributed on both sides of the middle of the support part of the supporting mechanism, and the two correction mechanisms are located at both ends of the support part and can adjust the spacing through the driving assembly, so that the abutting part of the correction mechanism is located below the side edge of the steel plate to be corrected, and the jacking mechanism holds the steel plate to be corrected during the correction process, thereby improving the correction effect of the upwarping of the steel plate of the steel box girder. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 is the overall structure schematic diagram of the embodiment of the present application;

[0031] Figure 2 is the structure schematic diagram of the correction mechanism of the embodiment of the present application;

[0032] Figure 3 is the structure schematic diagram of the driving assembly of the embodiment of the present application;

[0033] Figure 4 is the structure schematic diagram of the correction assembly of the embodiment of the present application;

[0034] Figure 5 is the structure schematic diagram of the detection assembly and the jacking mechanism of the embodiment of the present application.

[0035] BRIEF DESCRIPTION OF DRAWINGS: 1, supporting mechanism; 11, support beam; 12, connecting beam; 13, limiting plate; 14, sliding groove; 2, traction rod; 3, jacking mechanism; 31, jacking unit one; 32, fixed shell; 33, baffle; 4, correction mechanism; 41, laser ranging sensor one; 42, positioning plate; 421, support plate; 422, jacking unit two; 423, pressing rod; 43, supporting plate; 5, driving assembly; 51, rack; 52, driving gear; 53, driving motor one; 6, correction assembly; 61, extension spring; 62, correction plate; 63, embedded groove; 7, detection assembly; 71, driving motor two; 72, threaded rod; 73, sliding block; 74, laser ranging sensor two; 75, containing groove. DETAILED DESCRIPTION

[0036] The following will be described in detail in combination with the accompanying drawings Figures 1-5 The present application will be further described in detail.

[0037] The embodiment of the present application discloses a convenient and movable steel plate constraint corrector in the steel box girder manufacturing process.

[0038] Reference Figure 1 With Figure 2, steel box girder manufacturing process convenient movable steel plate constraint corrector, including support mechanism 1 and connecting on support mechanism 1 traction rod 2, jacking mechanism 3, two sets of correction mechanism 4, drive assembly 5.

[0039] Wherein, support mechanism 1 has support part and is connected with each structure through support part, the length of support part needs to be greater than the width of steel box girder to meet the requirements of correcting steel plate.

[0040] Traction rod 2 is detachably mounted on the middle part of the support part of the support mechanism 1 and is used to be connected with the preset traction device, under the driving of the traction device, the support part of the support mechanism 1 can move along the length direction of the steel box girder.

[0041] Jacking mechanism 3 has multiple groups, which are arranged below the support mechanism 1 and distributed on both sides of the middle part of the support part, and the jacking direction of the jacking mechanism 3 is perpendicular to the cross beam, and the two sets of correction mechanism 4 are slidably connected to the two ends of the support part of the support mechanism 1, and the sliding direction is along the length direction of the support part, and the correction mechanism 4 has an abutting part and is located below the steel plate to be corrected, and the abutting part holds the side edge of the steel plate to be corrected.

[0042] It should be noted that the correction mechanism 4 and the jacking mechanism 3 are used in cooperation, the two sets of correction mechanism 4 are slid towards the steel plate to be corrected to position the steel plate, so that the abutting part of the correction mechanism 4 is located below the steel plate to be corrected and can hold the side edge of the steel plate to be corrected, and the jacking mechanism 3 vertically jacks up the steel plate to be corrected to complete the constraint correction of the steel plate.

[0043] Drive assembly 5 is installed above the support part and connected with the two sets of correction mechanism 4, the correction mechanism 4 is driven to slide on the support part by the drive assembly 5, so as to position the steel plate to be corrected according to the width of the steel box girder.

[0044] Since the support mechanism 1 needs to be pulled by the traction device to slide along the length direction of the steel box girder, the traction rod 2 needs to be provided with a roller support through bolts at the lower end of the support mechanism 1, and a roller set is installed on the roller support, and the roller set abuts against the steel plate to be corrected to facilitate the movement of the support mechanism 1 on the surface of the steel plate to be corrected (to ensure the stability of the support mechanism 1, at least two sets of roller sets are arranged on both sides of the middle part of the support part, and the rollers of the roller set are distributed in front of and behind the width direction of the support part).

[0045] The device also comprises a controller electrically connected to the driving assembly 5 and the jacking mechanism 3, in order to facilitate the sliding of the abutting portions of the two sets of correcting mechanisms 4 to the lower side of the side edges of the steel plate to be corrected, the correcting mechanism 4 has a connecting portion, and a laser ranging sensor one 41 is arranged on the connecting portion, and the detection end of the laser ranging sensor one 41 is arranged horizontally towards the other correcting mechanism 4, the distance between the two correcting mechanisms 4 is detected by the laser ranging sensor one 41, and compared with the standard width of the steel plate to be corrected, so as to judge whether the abutting portion of the correcting mechanism 4 can hold the side edge of the steel plate to be corrected.

[0046] The laser ranging sensor one 41 is electrically connected to the controller;

[0047] The controller is configured to:

[0048] L1 represents the width of the steel plate and obtains the standard width of the steel plate to be corrected and is defined as X1;

[0049] It can be understood that the standard width of the steel plate to be corrected can be inquired from the information recorded before the production of the steel plate, or can be obtained by measuring before the steel plate is corrected (it should be noted that the standard width is the width of the steel plate to be corrected in the plane).

[0050] If the user assigns a value to L1 and L1=X1, when the detection value of the laser ranging sensor one 41 is greater than X1, the two correcting mechanisms 4 are controlled to approach each other;

[0051] It can be understood that since the laser ranging sensor one 41 is installed on the connecting portion of the correcting mechanism 4 and the detection end faces the steel plate to be corrected, when the detection value of the laser ranging sensor one 41 is greater than the width of the steel plate, it indicates that the correcting mechanism 4 is located at the side edge of the steel plate to be corrected and has a gap with the steel plate to be corrected, and the correcting mechanism 4 is driven by the driving assembly 5 to approach each other towards the steel plate to be corrected to ensure that the abutting portion of the correcting mechanism 4 can hold the side edge of the steel plate during the correction of the steel plate.

[0052] If the detection value of the laser ranging sensor one 41 is X1, the jacking mechanism 3 is controlled to jack up.

[0053] It can be understood that when the detection value of the laser ranging sensor one 41 is equal to the standard width of the steel plate, that is, the two sets of correcting mechanisms 4 abut against the steel plate to be corrected and can hold the steel plate to be corrected.

[0054] Through the above setting, the two sets of correction mechanisms 4 cooperate with the jacking mechanism 3, the jacking mechanism 3 acts on the steel plate to be corrected, and the jacking mechanism 3 applies a longitudinal force to the steel plate to be corrected. The abutting portions of the two sets of correction mechanisms 4 hold the side edges of the steel plate to be corrected to cooperate with the jacking mechanism 3 to apply a longitudinal force to the steel plate to be corrected and support the steel plate to be corrected upward, thereby improving the correction effect of the upward deflection of the steel plate of the steel box girder. The two sets of correction mechanisms 4 can slide along the length direction of the support mechanism 1 to adapt to steel plates of different widths.

[0055] Referring to Figure 1 With Figure 2 The support mechanism 1 for supporting each structure includes two support beams 11 for connecting each structure and a connecting beam 12 for connecting the two support beams 11. The two support beams 11 are arranged transversely side by side, and a plurality of fixing holes for fixing the connecting beam 12 are formed in the side walls of the support beams 11. The traction rod 2 is longitudinally arranged and extends from below the support beams 11. The two ends of the connecting beam 12 are fixed to the support beams 11 by bolts, and the connecting beam 12 can be installed in different rows of fixing holes to adjust the total length between the connecting beam 12 and the two support beams 11, so as to adapt to steel plates of different lengths to be corrected.

[0056] To prevent the bolts from loosening and falling off and causing the two support beams 11 to collapse, limit plates 13 are fixed to the upper and lower sides of the two support beams 11 by bolts, and the limit plates 13 extend along the length direction of the support beams 11. The connecting beam 12 is located between the two limit plates 13 and the upper and lower ends of the connecting beam 12 abut against the limit plates 13. When the bolts between the connecting beam 12 and the support beams 11 loosen and fall off, the connecting beam 12 is still limited by the two limit plates 13, so that the two support beams 11 will not collapse in the middle due to the falling off of the connecting beam 12 in the middle (since the support beams 11 need to support each structure, they need to have strong strength. The support beams 11 in this embodiment can be I-beams, which have strong load-bearing capacity and high stability due to their unique shape).

[0057] Through the above setting, by forming a plurality of fixing holes in the side walls of the two support beams 11, when the connecting beam 12 connects the two support beams 11, different rows of fixing holes can be selected for fixation, so that the distance between the two support beams 11 and the connecting beam 12 is adjusted to change the length of the support part composed of the two support beams 11 and the connecting beam 12, so as to adapt to steel plates of different lengths to be corrected. At the same time, the limit plates 13 arranged on the upper and lower sides of the support beams 11 limit the connecting beam 12. When the bolts connecting the connecting beam 12 and the two support beams 11 fall off, the connecting beam 12 is still limited by the two limit plates 13 and can support the two support beams 11, thereby improving the stability of the device.

[0058] Referring to Figure 2 WithFigure 3 The correction mechanism 4 for holding the steel plate to be corrected includes a positioning plate 42 for clamping the steel plate to be corrected and a supporting plate 43 for holding the correction of the steel plate to be corrected. The positioning plate 42 is slidably sleeved on the support beam 11 and vertically downwardly extends. The supporting plate 43 is connected to the side wall of the positioning plate 42 on the side of the steel plate to be corrected by bolts and is located below the steel plate. When the jacking mechanism 3 jacks up the steel plate to be corrected, the supporting plate 43 is moved to the lower side of the steel plate to be corrected to achieve the lifting effect.

[0059] The laser ranging sensor one 41 is mounted on the side wall of the positioning plate 42 on the side of the steel plate to be corrected by bolts, and the longitudinal distance between the laser ranging sensor one 41 and the support beam 11 is less than the length of the lower end of the traction rod 2 extending out of the support beam 11 (since the roller set is connected to the lower end of the traction rod 2, and the roller set abuts against the steel plate to be corrected, at this time the laser ranging sensor one 41 is located above the steel plate to be corrected, avoiding being blocked by the steel plate to be corrected to affect the measurement of the distance between the two positioning plates 42 by the laser ranging sensor one 41).

[0060] The two positioning plates 42 are connected to the driving assembly 5 and slide along the length direction of the support beam 11 under the driving of the driving assembly 5. The driving assembly 5 includes two racks 51, a driving gear 52 and a driving motor one 53. The upper surface of the support beam 11 is provided with a support frame by bolts. The driving motor one 53 is arranged on the support frame and fixed by bolts. The output shaft of the driving motor one 53 is vertically downward. The driving gear 52 is coaxially fixedly connected to the output shaft of the driving motor one 53 and fixed by a key, so that the output shaft of the driving motor one 53 can synchronously drive the driving gear 52 to rotate when rotating.

[0061] Referring to Figure 3 The limiting plate 13 is provided with two sliding grooves 14 on the surface, and the sliding grooves 14 are transversely distributed on both sides of the driving gear 52 and extend along the length direction of the support beam 11. The two racks 51 are respectively slidably connected in the two sliding grooves 14, and the upper end of the rack 51 extends out of the sliding groove 14. The side of the rack 51 facing the driving gear 52 is provided with a tooth structure engaged with the driving gear 52. The positioning plate 42 is fixedly sleeved on the rack 51, so that the rack 51 is driven by the driving gear 52 to drive the positioning plate 42 to move along the length direction of the support beam 11.

[0062] With the above configuration, the rotation of the output shaft of the drive motor 53 drives the drive gear 52, which is coaxially fixed to it, to rotate. Since the tooth structure of the rack 51 meshes with the drive gear 52 and the rack 51 is located in the sliding groove 14, the rack 51 can slide along the length of the sliding groove 14 and drive the positioning plate 42, which is fixed to the rack 51, to slide. Thus, the positioning plate 42 is controlled to slide relative to the support beam 11 by the drive motor 53, so that the support plate 43 is located on the lower side of the side of the steel plate to be corrected and plays a supporting role (in order to improve the clamping strength of the two positioning plates during the correction process, the positioning plate in this embodiment can be made of channel steel).

[0063] Reference Figure 2 In order to clamp the steel plate to be straightened by the two positioning plates 42 and to position the support plate 43 below the side of the steel plate to be straightened, the two positioning plates 42 need to be moved toward the steel plate to be straightened until the distance between them is the same as the standard width of the steel plate to be straightened. If the device is currently on the upper surface of the steel plate to be straightened, the actual width of the steel plate to be straightened will be less than its standard width due to the upward deflection. Even if the distance between the two positioning plates 42 meets the standard width of the steel plate to be straightened, there may still be a gap between the two positioning plates 42 and the steel plate to be straightened. If the support beam 11 tilts laterally on the surface of the steel plate to be straightened at this time, it will affect the straightening effect. Therefore, a correction component 6 is provided on the side wall of the positioning plate 42.

[0064] Reference Figure 2 and Figure 4 The correction assembly 6 includes a correction plate 62 for adjusting the relative position of the support beam 11 and the steel plate to be corrected, and a telescopic spring 61. The positioning plate 42 has a groove 63 on its side wall facing the steel plate to be corrected. The telescopic spring 61 is fixed in the groove 63 and fixedly connected to the correction plate 62. The end of the correction plate 62 extends out of the groove 63 and abuts against the steel plate to be corrected.

[0065] When the output shaft of the drive motor 53 rotates and drives the positioning plate 42 to move toward the steel plate to be straightened, the straightening plate 62 abuts against the steel plate to be straightened, driving the positioning plate 42 to swing until it is parallel to the steel plate to be straightened, so as to adjust the relative position of the support beam 11 and the steel plate to be straightened. At the same time, the telescopic spring 61 contracts so that the straightening plate 62 can be inserted into the groove 63, so that the distance between the two positioning plates 42 can meet the standard width requirement of the steel plate to be straightened (it should be noted that the width of the groove 63 must be greater than the width of the straightening plate 62 to prevent the straightening plate 62 from getting stuck when it is pushed into the groove 63 by the steel plate to be straightened).

[0066] Reference Figure 2 and Figure 5The lifting mechanism 3 for lifting and correcting the steel plate to be corrected comprises a lifting unit one 31 of a lifting support beam 11 and a fixed shell 32 supporting the lifting unit one 31, the fixed shell 32 is bolted to the lower surface of the support beam 11, the lifting unit is located in the cavity of the fixed shell 32, and the telescopic end of the lifting unit is vertically upward, the lower surface of the fixed shell 32 is provided with a transfer port for the lifting unit to be lowered, so that the base of the lifting unit one 31 can be arranged to extend out of the transfer port and contact the surface of the steel plate to be corrected.

[0067] The fixed shell 32 is connected with a baffle 33 for limiting the extension of the lifting unit one 31 out of the transfer port, the baffle 33 is used to limit the transfer port, so that the lifting unit one 31 can be stored in the fixed shell 32 and transferred with the support beam 11, and the sidewall of the fixed shell 32 is provided with an opening for the baffle 33 to move out (the lifting unit in this embodiment can be an electric hydraulic jack).

[0068] When the lifting unit one 31 is needed to lift the upwardly curved surface of the steel plate to be corrected, the baffle 33 is removed from the transfer port by the on-site operator, so that the base of the lifting unit one 31 can be moved to the surface of the steel plate to be corrected through the transfer port, and the telescopic end of the lifting unit one 31 can be controlled to extend and abut against the inner wall of the fixed shell 32 to achieve the correction effect, and the lower side of the support beam 11 is slidably connected with a detection assembly 7 for detecting the deformation of the steel plate to be corrected along the length direction of the support beam 11.

[0069] Referring to Figure 5 The detection assembly 7 for detecting the deformation of the steel plate to be corrected comprises a laser ranging sensor two 74 for detecting the distance between the upper surface of the steel plate to be corrected and the support beam 11, a sliding block 73, a threaded rod 72 and a driving motor two 71 for driving the sliding block 73 to slide, wherein the opposite sidewalls of the two support beams 11 are provided with receiving grooves 75 along the length direction of the support beams 11, and the driving motor one 53 is bolted in the receiving grooves 75 and the output end of the driving motor one 53 faces the other support beam 11 horizontally.

[0070] The threaded rod 72 is coaxially fixedly connected to the output shaft of the support beam 11 through a shaft coupling, and a fixed plate is rotatably connected to the end portion of the threaded rod 72, the fixed plate is bolted in the receiving groove 75, the sliding block 73 is threadedly sleeved on the threaded rod 72, and the sliding block 73 is in close contact with the inner wall of the receiving groove 75, when the output shaft of the driving motor two 71 rotates and drives the threaded rod 72 to rotate, the sliding block 73 is limited by the inner wall of the receiving groove 75 and slides along the length direction of the threaded rod 72.

[0071] The lower surface of the support beam 11 is provided with a through groove, the opening of the through groove is downward and communicates with the accommodating groove 75, the laser ranging sensor two 74 is installed on the lower surface of the sliding block 73 by bolts and located in the through groove, and the detection end thereof is vertically downward (it should be noted that the length of the accommodating groove 75 and the through groove is less than the length of the two sections of the support beam 11), and the laser ranging sensor two 74 and the driving motor two 71 are respectively electrically connected to the controller and are configured as:

[0072] If the user initiates the steel plate to be corrected detection instruction is received, the driving motor two 71 is controlled to act;

[0073] It can be understood that the steel plate to be corrected detection instruction can be an instruction issued by the user pressing the start button preset on the surface of the support beam 11, and the start button needs to be electrically connected to the controller.

[0074] The real-time detection value fed back by the laser ranging sensor two 74 is obtained and marked as a1;

[0075] It can be understood that since the laser ranging sensor two 74 moves back and forth along the length direction of the support beam 11 under the driving of the driving motor two 71, when the steel plate to be corrected appears the upwarping phenomenon, the detection value a1 of the laser ranging sensor two 74 will change in the moving process.

[0076] a1 and a preset standard distance value a2 are compared, if the comparison result is a1 < a2, the jacking unit one 31 is controlled to jack;

[0077] It can be understood that the preset standard distance value a2 is the distance between the laser ranging sensor two 74 and the plane when the device is located on the plane, since the device is abutted to the surface of the steel plate by the roller group, the preset standard distance value a2 can also be the length of the traction rod 2 extending from the lower surface of the support beam 11, then the length of the traction rod 2 extending from the lower surface of the support beam 11 can be measured during the assembly of the device; by comparing the standard detection value a1 of the laser ranging sensor two 74 and the standard detection value a2 when the device is located on the plane, a1 < a2, it indicates that the upper surface of the steel plate to be corrected appears upwarping deformation, then the telescopic rod of the jacking unit one 31 needs to be controlled to jack and correct.

[0078] Through the above setting, when the support beam 11 is moved along the length direction of the steel plate to be corrected by the traction device, the output shaft of the driving motor two 71 drives the threaded rod 72 to rotate. Since the sliding block 73 is threadedly sleeved on the threaded rod 72 and abuts against the inner wall of the accommodating groove 75, when the threaded rod 72 rotates, the sliding block 73 will move along the length direction of the support beam 11, and the distance between the sliding block 73 and the surface of the steel plate to be corrected is detected by the laser ranging sensor two 74, and compared with the detection value when the laser ranging sensor two 74 is located on the plane to determine whether the surface of the steel plate to be corrected is deformed (it should be noted that, in the use process of the device, the laser ranging sensor two 74 needs to detect the surface of the steel plate to be corrected, and the laser ranging sensor two 74 needs to move back and forth along the length direction of the support beam 11, and the driving motor two 71 needs to meet the requirements of forward and reverse rotation. The driving motor two 71 in the embodiment can be an alternating current asynchronous motor).

[0079] With reference to Figure 2 In another embodiment of the present application, the steel plate of the steel box girder may also appear a downward bending phenomenon in the actual production process. To solve the above phenomenon, a support plate 421 is fixed on the facing side of the positioning plate 42 by bolts, and the support plate 421 is horizontally arranged and abuts against the support beam 11. A jacking unit two 422 is installed on the lower surface of the support plate 421, and the telescopic end of the jacking unit two 422 is vertically arranged downward and is fixed with a pressing rod 423 at the end by bolts, and the pressing rod 423 is vertically arranged in the vertical direction of the support beam 11. The jacking unit two 422 is electrically connected to the controller and is configured to:

[0080] Obtain the comparison result of a1 and a2. If the comparison result a1>a2, control the jacking unit two 422 to jacking;

[0081] It can be understood that when the surface of the steel plate to be corrected appears downward bending, the distance between the detection end of the laser ranging sensor two 74 and the steel plate to be corrected will increase. The jacking unit two 422 is connected to the two positioning plates 42, i.e. located on the two side edges of the steel plate to be corrected. The jacking unit two 422 is used to press the side edges of the steel plate downward to correct the downward bending of the steel plate.

[0082] When the steel plate to be corrected appears to be deflected downward, the distance between the detection end of the laser distance sensor two 74 and the steel plate to be corrected increases, so that the detection value of the laser distance sensor two 74 is greater than the standard detection value when the laser distance sensor two 74 is located on the plane. At this time, the extension end of the jacking unit two 422 is stretched by control, and since the jacking unit two 422 is arranged on the positioning plate 42, it acts on the side edge of the steel plate to be corrected to correct the upward deflection of the steel plate. The arrangement of the pressing rod 423 is used to limit the jacking of the jacking unit two 422 on the side edge of the steel plate, that is, when the pressing rod 423 abuts to the plane of the side edge of the steel plate to be corrected, the correction of the downward deflection surface of the steel plate to be corrected is completed at this time (the jacking unit two 422 in the embodiment can be an electric hydraulic jack).

[0083] The implementation principle of the embodiment is: the standard width of the steel plate to be corrected is obtained, and the output shaft of the driving motor one 53 is controlled to rotate according to the standard width, so that the driving gear 52 coaxially fixed connected with the output shaft of the driving motor one 53 rotates. Since the tooth structure of the rack 51 is engaged with the driving gear 52 and the rack 51 is located in the sliding groove 14, the driving gear 52 drives the rack 51 to slide along the sliding groove 14 and approach the steel plate to be corrected.

[0084] Since the positioning plate 42 is fixedly sleeved on the rack 51, the positioning plate 42 moves with the rack 51. The laser distance sensor one 41 is used to detect the distance between the two positioning plates 42. When the detection value of the laser distance sensor one 41 is the same as the standard width of the steel plate to be corrected, the two positioning plates 42 are close to the steel plate to be corrected, and the supporting plate 43 located below the side edge of the steel plate to be corrected plays a supporting role.

[0085] The traction device is connected with the traction rod 2, and the support beam 11 is moved along the width direction of the steel plate to be corrected by the traction device. During the movement, the output shaft of the driving motor two 71 is controlled to drive the threaded rod 72 to rotate forward and backward. Since the sliding block 73 is attached to the side wall of the accommodating groove 75, the sliding block 73 moves back and forth in the accommodating groove 75 along the length direction of the threaded rod 72, so that the laser distance sensor two 74 detects the steel plate to be corrected back and forth in the transverse direction. When the detection value of the laser distance sensor two 74 is less than the detection value when it is located above the plane, it indicates that the steel plate to be corrected appears to be deflected upward. The upward deflection surface of the steel plate to be corrected is jacked up by the jacking unit one 31, and the supporting plate 43 cooperates with the jacking of the jacking unit one 31 to support the side edge of the steel plate, so as to improve the correction effect of the upward deflection of the steel plate of the steel box girder.

[0086] The above are the preferred embodiments of the present application, which do not limit the protection scope of the present application. Therefore, any equivalent changes made according to the structure, shape and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A convenient and movable steel plate constraint straightener for the fabrication process of steel box girders, characterized in that: include: Support mechanism (1), which has a support part and its length is greater than the width of the steel box girder; The traction rod (2) is detachably connected to the support part of the support mechanism (1) and is used to connect with a preset traction device; The lifting mechanism (3) consists of multiple sets, which are located below the support mechanism (1) and distributed on both sides of the middle of the support section, with the lifting direction perpendicular to the crossbeam; Two sets of correction mechanisms (4) are slidably connected to both ends of the support part of the support mechanism (1) and the sliding direction is along the length of the support part, and there is an abutment part used to support the side of the steel plate to be corrected. A drive assembly (5) is connected to the correction mechanism (4) and is used to drive the correction mechanism to slide; The controller is electrically connected to the lifting mechanism (3) and the drive assembly (5). The traction rod (2) passes through the support and has a roller assembly at its lower end, with the roller assembly abutting against the surface of the steel plate to be corrected. The correction mechanism (4) has a connecting part and is equipped with a laser ranging sensor (41). The laser ranging sensor (41) is located above the steel plate to be corrected and its detection end is horizontally positioned facing another correction mechanism (4). The laser ranging sensor (41) is electrically connected to the controller and configured as follows: Let L1 represent the width of the steel plate and obtain the standard width of the steel plate to be straightened, which is defined as X1. If the user assigns a value to L1 and L1=X1, then when the detection value of the laser rangefinder sensor (41) is greater than X1, the two correction mechanisms (4) are controlled to move closer to each other. If the detection value of the laser rangefinder sensor (41) is X1, then the lifting mechanism (3) is controlled to lift.

2. The convenient and movable steel plate constraint corrector for the steel box girder fabrication process according to claim 1, characterized in that: The support mechanism (1) includes two support beams (11) for connecting the various structures and a connecting beam (12) for connecting the two support beams (11). The two support beams (11) are arranged side by side in the horizontal direction and have multiple rows of fixing holes on their side walls for fixing the connecting beam (12). Limiting plates (13) are fixed on the upper and lower sides of the side walls of the support beams (11). The connecting beam (12) is located between the two limiting plates (13) and its two ends are fixedly connected to the two support beams (11). Two sets of correction mechanisms (4) are slidably connected to the two support beams (11).

3. The convenient and movable steel plate constraint straightener for the steel box girder fabrication process according to claim 2, characterized in that: The correction mechanism (4) includes a positioning plate (42) for clamping the steel plate to be corrected and a support plate (43) for supporting the steel plate to be corrected. The positioning plate (42) is slidably sleeved on the end of the support beam (11) and is vertically arranged. The support plate (43) is fixedly connected to the side wall of the positioning plate (42) facing the steel plate to be corrected and is located below the steel plate to be corrected. The laser range sensor (41) is fixedly connected to the side of the positioning plate (42) facing the steel plate to be corrected. The side wall of the positioning plate (42) is provided with a correction component (6) for adjusting the relative position of the support beam (11) and the steel plate to be corrected.

4. The convenient and movable steel plate constraint corrector for the steel box girder fabrication process according to claim 3, characterized in that: The drive assembly (5) includes two racks (51), a drive gear (52), and a drive motor (53). A support frame is connected to the upper surface of the support beam (11). The drive motor (53) is fixedly connected to the support frame, and the output shaft of the drive motor (53) is vertically downward. The drive gear (52) is coaxially fixedly connected to the output shaft of the drive motor (53). The surface of the limiting plate (13) is provided with two sliding grooves (14) for the two racks (51) to slide. The two sliding grooves (14) are horizontally arranged on the front and rear sides of the drive gear (52). The side wall of the rack (51) facing the drive gear (52) is provided with a tooth structure that meshes with the drive gear (52). The positioning plate (42) is fixedly connected to the rack (51).

5. The convenient and movable steel plate constraint straightener for the steel box girder fabrication process according to claim 3, characterized in that: The correction component (6) includes a telescopic spring (61) and a correction plate (62). The positioning plate (42) has a groove (63) on its side wall facing the steel plate to be corrected. The telescopic spring (61) is fixedly connected in the groove (63) and connected to the correction plate (62). The end of the correction plate (62) extends out of the groove (63) and abuts against the steel plate to be corrected. The width of the groove (63) is greater than the width of the correction plate (62).

6. The convenient and movable steel plate constraint corrector for the steel box girder fabrication process according to claim 3, characterized in that: The lifting mechanism (3) includes a lifting unit (31) for lifting the support beam (11) and a fixed shell (32) for supporting the lifting unit (31). The fixed shell (32) is fixedly connected to the lower surface of the support beam (11). The lifting unit (31) is disposed inside the fixed shell (32). The telescopic end of the lifting unit (31) is vertically upward. The lower surface of the fixed shell (32) is provided with a transfer port through which the base of the lifting unit (31) can extend and contact the surface of the steel plate to be corrected. A baffle (33) for limiting the extension of the lifting unit (31) through the transfer port is slidably connected in the inner cavity of the fixed shell (32). An opening for the baffle (33) to move out is provided on one side of the fixed shell (32). A detection component (7) for detecting the deformation of the steel plate to be corrected is slidably connected below the support beam (11), and the sliding direction is the length direction of the support beam (11).

7. The convenient and movable steel plate constraint corrector for the steel box girder fabrication process according to claim 6, characterized in that: The detection component (7) includes a second drive motor (71), a threaded rod (72), a sliding block (73), and a second laser ranging sensor (74). Receiving grooves (75) are formed along the length of the opposing sidewalls of the two support beams (11). The second drive motor (71) is fixedly connected to the receiving groove (75) of any one section of the support beam (11), and the output shaft of the second drive motor (71) faces the other section of the support beam (11). The threaded rod (72) is coaxially fixedly connected to the output shaft of the second drive motor (71) and its length is less than that of the two support beam sections. The length of the support beam (11), the lower surface of the two support beams (11) is provided with a through groove, the through groove opening downward and communicating with the receiving groove (75), the sliding block (73) is threaded to the threaded rod (72) and fits against the inner wall of the receiving groove (75), the second laser ranging sensor (74) is fixedly connected to the lower surface of the sliding block (73) and located in the through groove, the detection end of the second laser ranging sensor (74) is set vertically downward, the second laser ranging sensor (74) and the second drive motor (71) are respectively electrically connected to the controller and configured as follows: If a user-initiated inspection command for the steel plate to be corrected is received, the drive motor 2 will be controlled to operate. Obtain the real-time detection value fed back by the laser rangefinder sensor 2 (74) and mark it as a1; Compare a1 with the preset standard distance value a2. If the comparison result is a1 < a2, then control the lifting unit (31) to lift.

8. The convenient and movable steel plate constraint straightener for the steel box girder fabrication process according to claim 7, characterized in that: A support plate (421) is horizontally fixed on the sidewalls of the positioning plates (42) facing each other, and the support plate (421) is in contact with the support beam (11). A lifting unit two (422) is fixedly connected to the lower surface of the support plate (421), and the telescopic end of the lifting unit two (422) is vertically downward and fixedly connected to a pressure rod (423). The pressure rod (423) extends perpendicular to the length direction of the support beam (11). The lifting unit two (422) is electrically connected to the controller and configured as follows: Obtain the comparison result between a1 and a2. If the comparison result a1 > a2, then control the lifting unit two (422) to lift.

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