Steel formwork welding and positioning device for bridge pier

Abstract

The invention relates to a steel formwork welding and positioning device for a bridge pier, and belongs to the technical field of steel formwork welding, the steel formwork welding and positioning device comprises a base used for placing a formwork, the formwork is buckled on the base, the base is provided with a positioning frame, the positioning frame is located on one side of the formwork, and the positioning frame is provided with a lineation piece; a supporting frame is arranged on the base, a grabbing piece and a coating piece are arranged on the supporting frame, and the grabbing piece is used for grabbing and hoisting a main beam to be fed into a lineation position and applying downward pressure to the main beam so that the main beam can be attached to the welding face of the formwork; the coating piece is used for coating solder paste on the surface, facing the template, of the main beam; a clamping piece is arranged on the positioning frame, the clamping piece is used for clamping the rib plate and feeding the rib plate between the main beams, and the grabbing piece downwards presses the main beams so that part of solder paste can be moved out of the binding face to fix the rib plate; a cooling water bag is arranged on the base, and the template is buckled on the cooling water bag and attached to the cooling water bag so as to cool the template and the hot-melted solder paste. The method has the advantage that the manufacturing precision and the machining efficiency of the steel formwork are improved.

Description

Technical Field

[0001] This application relates to the technical field of steel formwork welding, and particularly to a welding positioning device for steel formwork used in bridge piers. Background Art

[0002] Steel formwork, as a tool for concrete pouring and shaping, is mainly made of steel. Compared with other types of formwork such as wooden formwork and plywood formwork, steel formwork has been widely used in the field of construction engineering due to its excellent durability, precise concrete pouring and shaping effect, and good appearance aesthetics. In the pouring operation of bridge piers, steel formwork is an indispensable tool. Since bridge piers usually contain complex arc surfaces, it is required to use specially designed arc-shaped steel formwork during the pouring process. The arc-shaped steel formwork usually includes a plurality of main beams and rib plates arranged on the formwork surface. These main beams and rib plates are arranged vertically and are firmly connected to the formwork body through a welding process.

[0003] However, when performing welding operations, certain challenges are faced. First, it is necessary to ensure that the main beam or rib plate is closely attached to the formwork surface, then use spot welding technology to temporarily fix its position, and finally perform full welding. However, due to the special geometric shape of the arc-shaped formwork, when the main beam or rib plate is temporarily fixed, the welder holds the welding torch and holds the main beam and rib plate by hand for welding operations. During this process, the main beam and rib plate are prone to small displacements, resulting in relatively average welding accuracy of the main beam and rib plate; at the same time, during the formwork welding process, it is necessary to adjust the positions of the main beam and rib plate, resulting in low welding efficiency of the formwork. Summary of the Invention

[0004] To improve the manufacturing accuracy and welding efficiency of steel formwork, this application provides a welding positioning device for steel formwork used in bridge piers.

[0005] This application is achieved through the following technical solutions: A welding positioning device for steel formwork used in bridge piers includes a base for placing the formwork. The formwork is buckled on the base. A positioning frame is provided on the base. The positioning frame is located on one side of the formwork. A marking member is provided on the positioning frame. The marking member is used to mark the position of the main beam on the welding surface of the formwork;

[0006] A support frame is provided on the base. A gripping member and a coating member are provided on the support frame. The gripping member is used to grip and hoist the main beam to the marked position and apply a downward pressure to the main beam to make it fit on the welding surface of the formwork; The coating member is used to coat solder paste on the surface of the main beam facing the formwork;

[0007] A clamping member is provided on the positioning frame. The clamping member is used to clamp the rib plate and feed it between the main beams. The gripping member presses down the main beam to make part of the solder paste move out from the fitting surface to fix the rib plate;

[0008] The positioning device also includes a heating element, which is used to heat the bonding surfaces of the main beam, the rib plate and the template to melt the solder paste and fix the main beam and the rib plate on the template;

[0009] A cooling water bag is arranged on the base, and the template is buckled and attached to the cooling water bag to cool the template and the hot-melted solder paste.

[0010] Furthermore, the marking member includes a plurality of arc plates arranged on a positioning frame, the arc plates are parallel to the template and have a lateral length greater than the lateral length of the template, the marking member also includes an elastic cloth arranged on the arc plates, the elastic cloth is located on the concave surface of the arc plates, the elastic cloth is in a straight line in an initial state, one end of the arc plate is rotatably arranged on the positioning frame, the rotation axis of the arc plate is parallel to the length direction of the template, a first driving member is arranged on the positioning frame, the first driving member is used to drive the arc plate to rotate above the template and make the elastic cloth fit onto the surface of the template, the marking member also includes an identification member, the identification member is used to form an identification line on the surface of the template.

[0011] Furthermore, the identification member includes a first solder paste box arranged on the arc plate, solder paste is arranged in the first solder paste box, a first coating roller is rotatably arranged in the first solder paste box, the lower half of the first coating roller is immersed in the solder paste, one end of the elastic cloth passes through the first solder paste box and is supported on the first coating roller, the identification member also includes a winding shaft rotatably arranged in the first solder paste box, the elastic cloth is wound on the winding shaft, and when the elastic cloth is pulled out of the first solder paste box, the elastic cloth drives the first coating roller to rotate and coats the solder paste on the elastic cloth.

[0012] Furthermore, two first coating rollers are provided and are parallel to each other, the elastic cloth is clamped between the two first coating rollers, the lower half of the first coating roller located at the bottom is immersed in the solder paste, and a plurality of solder paste grooves are evenly opened on the first coating roller, and the first coating roller located at the top is evenly provided with a plurality of protrusions, which are adapted to the solder paste grooves, and the protrusions are used to press the elastic cloth into the solder paste grooves to apply the solder paste on the elastic cloth.

[0013] Furthermore, the grabbing member includes a grabbing rod arranged on a support frame, the grabbing rod is arranged vertically, a grabbing notch is opened at the bottom of the grabbing rod, two clamping plates are slidably arranged in the grabbing notch, the two clamping plates are arranged opposite to each other, and the grabbing member also includes a second driving member for driving the clamping plates to slide and clamp the fixed main beam.

[0014] Further, the coating member includes a sliding plate slidably disposed on the side wall of the grasping rod. The length direction and the sliding direction of the sliding plate are both parallel to the length direction of the grasping rod. A receiving groove is formed on the surface of the sliding plate facing the grasping rod. The coating member further includes a rotating rod and an extension rod disposed in the receiving groove. The extension rod is rotatably disposed on the bottom wall of the receiving groove and the extension rod is a telescopic structure. The rotating rod is fixedly disposed on the extension rod and perpendicular to the extension rod. The rotating rod is a telescopic structure. A second coating roller is rotatably disposed on the rotating rod. The second coating roller is used for coating solder paste on the fitting surface of the main beam. The coating member further includes a coating motor for driving the extension rod to rotate, driving the rotating rod to swing, and driving the second coating roller to run along the bottom of the main beam.

[0015] Further, a second solder paste box for placing solder paste is hinged on the rotating rod. The second coating roller is rotatably disposed in the second solder paste box and the lower half is located in the solder paste. A counterweight is disposed at the bottom of the second solder paste box. The counterweight is used to keep the opening of the second solder paste box in a horizontal state.

[0016] Further, the clamping member includes a clamping groove formed on the side surface of the arc-shaped plate and a fixed airbag disposed in the clamping groove. The clamping groove penetrates through the side surface of the arc-shaped plate. The fixed airbag is in a strip shape. The rib plate is fixed in the clamping groove through the fixed airbag and is placed on the main beam as the arc-shaped plate rotates, and then the rib plate is pushed into the space between adjacent main beams.

[0017] Further, a placement rack for placing the main beam is disposed on the base. The main beam is placed on the placement rack in a buckled state. A guiding rail is disposed on the base. A moving notch for the grasping rod to enter is formed on the guiding rail. The guiding rail is located above the main beam and at the midline of the main beam.

[0018] Further, the support frame includes a plurality of support rods and a rectangular frame. The support rods are fixedly disposed on the base. The rectangular frame is fixedly disposed at the end of the support rods. The grasping rod is disposed in the rectangular frame. The grasping rod is a telescopic structure. A two-axis slide is disposed in the rectangular frame. The grasping rod is disposed on the two-axis slide.

[0019] The technical solution of the present application has at least the following advantages and beneficial effects:

[0020] 1. When welding the template, first fasten the template on the base. At this time, the bottom of the template is attached to and supported on the cooling water bag. Subsequently, mark the position of the main beam on the template through the scribing piece, then grasp the main beam through the grasping piece, and then hoist the main beam to the scribed position. During the hoisting of the main beam, apply solder paste to the bottom of the main beam through the coating piece, and then press down the main beam through the grasping piece to make the main beam closely adhere to the template and cause some solder paste to overflow. Since the solder paste composition contains flux and thixotropic agent, after mixing, it forms a paste structure, making the solder paste have both fluidity and adhesion, thereby temporarily fixing the main beam on the template. Subsequently, clamp the rib plate through the clamping piece and send the rib plate between the main beams. At this time, the rib plate is clamped on the main beam. After all the rib plates are clamped on the main beam and adhered to the template, act on the main beam, rib plate and template through the heating piece to heat and melt the solder paste. Under the action of the cooling water bag, quickly cool the solder paste to fix the main beam, rib plate and template. The operation is simple and convenient; at the same time, under the action of the cooling water bag, cool the template, reducing the possibility of changes in the physical and chemical properties of the template due to temperature rise;

[0021] 2. Since the solder paste adheres the main beam and rib plate to the template and then fixes the main beam and rib plate through heating, there is no need to hold the main beam and rib plate by hand for welding, thereby reducing the possibility of movement of the main beam and rib plate, and thus improving the welding accuracy of the template; at the same time, after all the main beams and rib plates are arranged, then perform solder paste welding, and perform preliminary fixing of the main beam and rib plate, improving the preliminary fixing efficiency, thereby improving the welding efficiency of the template; when the solder paste cools down, then perform the welding operation of the main beam and rib plate. Brief Description of the Drawings

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings required to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present application, so it should not be regarded as a limitation of the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings.

[0023] Figure 1 is a structural schematic diagram of a steel formwork for bridge piers;

[0024] Figure 2 is an overall structural schematic diagram of a welding positioning device for a steel formwork for bridge piers according to an embodiment of the present application;

[0025] Figure 3 is a structural schematic diagram of the scribing piece in a welding positioning device for a steel formwork for bridge piers according to an embodiment of the present application;

[0026] Figure 4 is a structural schematic diagram of the scribing piece in a welding positioning device for a steel formwork for bridge piers according to an embodiment of the present application;

[0027] Figure 5 It is a schematic diagram of thermal fusion welding of the main beam, rib plate and formwork in a steel formwork welding positioning device for bridge piers in an embodiment of the present application;

[0028] Figure 6 It is Figure 4 an enlarged schematic diagram of part A in;

[0029] Figure 7 It is Figure 5 an enlarged schematic diagram of part B in;

[0030] Figure 8 It is a structural schematic diagram of a coating member in a steel formwork welding positioning device for bridge piers in an embodiment of the present application;

[0031] Figure 9 It is Figure 8 an enlarged schematic diagram of part C in;

[0032] Figure 10 It is Figure 4 an enlarged schematic diagram of part D in;

[0033] Figure 11 It is Figure 5 an enlarged schematic diagram of part E in.

[0034] Icon: 1. Formwork; 2. Main beam; 3. Rib plate; 4. Base;

[0035] 5. Positioning frame; 51. Mounting plate; 52. Positioning rod;

[0036] 6. Marking member; 61. Arc-shaped plate; 62. Elastic cloth; 63. First motor; 64. First solder paste box; 65. First coating roller; 66. Reel; 67. Solder paste groove; 68. Protrusion;

[0037] 7. Support frame; 71. Support rod; 72. Rectangular frame; 73. Lead screw; 74. Sliding seat; 75. Second motor;

[0038] 8. Gripping member; 81. Gripping rod; 82. Gripping notch; 83. Clamping plate; 84. Clamping push rod;

[0039] 9. Coating member; 91. Slide plate; 92. Pushing push rod; 93. Rotating rod; 94. Extension rod; 95. Rotating push rod; 96. Second coating roller; 97. Coating motor;

[0040] 10. Clamping member; 101. Clamping groove; 102. Fixed airbag;

[0041] 11. Cooling water bag;

[0042] 12. Accommodating groove; 13. Second solder paste box; 14. Counterweight; 15. Placing rack; 16. Guide rail; 17. Moving notch. Detailed implementation manners

[0043] To make the objectives, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Apparently, the described embodiments are some, but not all, of the embodiments of the present application. Usually, the components of the embodiments of the present application described and illustrated herein can be arranged and designed in various different configurations.

[0044] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but merely represents selected embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts shall fall within the scope of protection of the present application.

[0045] The following is further illustrated with specific embodiments. Referring to Figure 1 and Figure 2 , the steel formwork welding positioning device for a pier includes a base 4 for placing the formwork 1. The formwork 1 is buckled on the base 4. A positioning frame 5 is provided on the base 4. The positioning frame 5 is located on one side of the formwork 1. A marking member 6 is provided on the positioning frame 5. The marking member 6 is used to form a marking line on the welding surface of the formwork 1 to plan the position of the main beam 2 on the formwork 1;

[0046] Referring to Figure 2 and Figure 3 , a support frame 7 is provided on the base 4. A grasping member 8 and a coating member 9 are provided on the support frame 7. The grasping member 8 is used to grasp and hoist the main beam 2 to the marked position and apply a downward pressure to the main beam 2 to make the main beam 2 fit on the welding surface of the formwork 1; the coating member 9 is used to coat solder paste on the surface of the main beam 2 facing the formwork 1;

[0047] Referring to Figure 4 , a clamping member 10 is provided on the positioning frame 5. The clamping member 10 is used to clamp the rib plate 3 and feed it between the main beams 2. The grasping member 8 presses down the main beam 2 to make part of the solder paste move out from the fitting surface to fix the rib plate 3;

[0048] Referring to Figure 4 and Figure 5 , the positioning device further includes a heating member. The heating member is used to heat the fitting surfaces of the main beam 2, the rib plate 3 and the formwork 1 to melt the solder paste and fix the main beam 2 and the rib plate 3 on the formwork 1. In the embodiment of the present application, the heating member includes a gas tank and a blowtorch. The blowtorch is connected to the gas tank through a gas pipeline; when heating the solder paste, the blowtorch sprays a flame to heat the main beam 2 and the rib plate 3, so as to melt the solder paste, and the operation is simple and convenient;

[0049] Referring to Figure 4 andFigure 5 On the base 4, a cooling water bag 11 is provided. The cooling water bag 11 is filled with cooling water. The template 1 is buckled on the cooling water bag 11 and fits on the cooling water bag 11 to cool the template 1 and the melted solder paste.

[0050] When welding the template 1, first buckle the template 1 on the base 4. At this time, the bottom of the template 1 is attached to and rests on the cooling water bag 11. Subsequently, mark the position of the main beam 2 on the template 1 through the scribing member 6, then grasp the main beam 2 through the grasping member 8, and then hoist the main beam 2 to the scribed position. During the hoisting of the main beam 2, apply solder paste to the bottom of the main beam 2 through the applying member 9, and then press down the main beam 2 through the grasping member 8 to make the main beam 2 closely fit on the template 1 and cause some solder paste to overflow. Since the solder paste composition contains a flux and a thixotropic agent, after mixing, it forms a paste structure, making the solder paste have both fluidity and adhesion, and thus temporarily fixing the main beam 2 on the template 1. Subsequently, clamp the rib plate 3 through the clamping member 10 and send the rib plate 3 between the main beams 2. At this time, the rib plate 3 is clamped on the main beam 2. When all the rib plates 3 are clamped on the main beam 2 and fit on the template 1, act on the main beam 2, the rib plate 3 and the template 1 through the heating member to heat and melt the solder paste. Under the action of the cooling water bag 11, quickly cool the solder paste to fix the main beam 2, the rib plate 3 and the template 1, and the operation is simple and convenient; at the same time, under the action of the cooling water bag 11, cool the template 1, reducing the possibility of changes in the physical and chemical properties of the template 1 due to temperature rise.

[0051] Refer to Figure 3 and Figure 4 In the embodiment of the present application, the scribing member 6 includes a plurality of arc-shaped plates 61 provided on the positioning frame 5. The positioning frame 5 includes two mounting plates 51 and a positioning rod 52 provided between the two mounting plates 51. The arc-shaped plates 61 are provided on the positioning rod 52. The arc-shaped plates 61 are parallel to the template 1 and the transverse length is greater than the transverse length of the template 1. The scribing member 6 further includes an elastic cloth 62 provided on the arc-shaped plate 61. The elastic cloth 62 is located on the concave surface of the arc-shaped plate 61. The elastic cloth 62 is in a straight line state in the initial state. One end of the arc-shaped plate 61 is rotatably provided on the positioning frame 5, and the rotation axis of the arc-shaped plate 61 is parallel to the length direction of the template 1. A first driving member is provided on the positioning frame 5, and the first driving member is used to drive the arc-shaped plate 61 to rotate above the template 1 and make the elastic cloth 62 fit on the surface of the template 1. The first driving member includes a first motor 63 provided on one mounting plate 51. The positioning rod 52 is rotatably provided on the mounting plate 51 and coaxially arranged on the output shaft of the first motor 63. The scribing member 6 further includes a marking member for forming a marking line on the surface of the template 1;

[0052] Refer to Figure 4 and Figure 6The identification member includes a first solder paste box 64 arranged on the arc plate 61, the first solder paste box 64 is close to the end of the arc plate 61, solder paste is arranged in the first solder paste box 64, a first coating roller 65 is rotatably arranged in the first solder paste box 64, the lower half of the first coating roller 65 is immersed in the solder paste, one end of the elastic cloth 62 passes through the first solder paste box 64 and is supported on the first coating roller 65, the identification member also includes a winding shaft 66 rotatably arranged in the first solder paste box 64, the elastic cloth 62 is wound on the winding shaft 66, when the elastic cloth 62 is pulled out of the first solder paste box 64, the elastic cloth 62 drives the first coating roller 65 to rotate and the solder paste is coated on the elastic cloth 62.

[0053] When forming the marking line on the template 1, first pull the elastic cloth 62 to release the elastic cloth 62 from the winding shaft 66. After the elastic cloth 62 is separated from the winding shaft 66, it is connected to the first coating roller 65 and drives the first coating roller 65 to rotate. The first coating roller 65 rotates to coat the solder paste on the first coating roller 65. The first coating roller 65 then coats the solder paste on the elastic cloth 62. Then, the moving end of the elastic cloth 62 is fixed on the arc plate 61. At this time, the elastic cloth 62 crosses the arc. The arc plate 61 is rotated, and then the first motor 63 is started. The first motor 63 drives the positioning rod 52 to rotate. The rotation of the positioning rod 52 drives the arc plate 61 to rotate. The rotation of the arc plate 61 drives the elastic cloth 62 to move, so that the elastic cloth 62 is pressed against the template 1. During the rotation of the arc plate 61, the elastic cloth 62 gradually fits on the template 1, so that the solder paste is applied on the template 1. At this time, the continuous solder paste serves as a marking line and plays a role in subsequent solder paste welding.

[0054] Reference Figure 4 and Figure 6, in the embodiment of the present application, two first coating rollers 65 are provided and are parallel to each other. The elastic cloth 62 is clamped between the two first coating rollers 65. The lower half of the first coating roller 65 located below is immersed in the solder paste, and a plurality of solder paste grooves 67 are evenly formed in the first coating roller 65. The solder paste grooves 67 penetrate through the first coating roller 65 transversely. A plurality of protrusions 68 are evenly arranged on the first coating roller 65 located above. The protrusions 68 are strip-shaped, and the protrusions 68 are adapted to the solder paste grooves 67. The protrusions 68 are used to press the elastic cloth 62 into the solder paste grooves 67 to coat the solder paste on the elastic cloth 62. When the elastic cloth 62 is pulled to move, the elastic cloth 62 drives the two first coating rollers 65 on both sides to rotate. The first coating roller 65 located below receives the solder paste into the solder paste grooves 67 and rotates to the lower side of the elastic cloth 62. The first coating roller 65 located above rotates to drive the protrusions 68 to rotate into the solder paste grooves 67, and then presses the elastic cloth 62 into the solder paste grooves 67 to coat the solder paste on the elastic cloth 62. At this time, the solder paste on the elastic cloth 62 is continuous and the middle part bulges. When the elastic cloth 62 is stretched on the template 1, the bulging solder paste is smoothed on the template 1, so that the solder paste on the template 1 is evenly and flatly coated on the template 1, thereby improving the soldering effect of the main beam 2 and the rib plate 3.

[0055] Refer to Figure 4 , Figure 5 and Figure 7 , in the implementation of the present application, the support frame 7 includes a plurality of support rods 71 and a rectangular frame 72. The support rods 71 are fixedly arranged on the base 4, and the rectangular frame 72 is fixedly arranged at the ends of the support rods 71. The grasping rod 81 is arranged in the rectangular frame 72. The grasping rod 81 is a telescopic structure. A two-axis slide is arranged in the rectangular frame 72. The grasping rod 81 is arranged on the two-axis slide. The two-axis slide includes two mutually perpendicular lead screws 73. One of the lead screws 73 straddles the rectangular frame 72. Sliding seats 74 are threadedly connected to both lead screws 73. One of the lead screws 73 is rotatably arranged on the sliding seat 74. Further, the two-axis slide further includes a second motor 75 for driving the lead screw 73 to rotate.

[0056] Refer to Figure 4 , Figure 5 and Figure 7In the embodiment of the present application, the grabbing member 8 includes a grabbing rod 81 arranged on the support frame 7, the grabbing rod 81 is arranged vertically, and the top of the grabbing rod 81 is arranged on the sliding seat 74 spanning the rectangular frame 72, and a grabbing notch 82 is opened at the bottom of the grabbing rod 81, and two clamping plates 83 are slidably arranged in the grabbing notch 82, and the two clamping plates 83 are arranged opposite to each other. The grabbing member 8 also includes a second driving member for driving the clamping plate 83 to slide and clamp and fix the main beam 2, and the second driving member includes a clamping push rod 84 arranged on the grabbing rod 81, and the output shaft of the clamping push rod 84 enters the grabbing notch 82, and a clamping plate 83 is fixedly arranged on the output shaft of the clamping push rod 84; when clamping the main beam 2, the main beam 2 relatively enters the grabbing notch 82, and then the clamping push rod 84 is started, and the clamping push rod 84 pushes the clamping plate 83 to move, so that the clamping plate 83 clamps and fixes the main beam 2, and the operation is simple and convenient. Furthermore, the grabbing rod 81 is a multi-stage telescopic rod, the telescopic direction of the grabbing rod 81 is perpendicular to the sliding seat 74, and the grabbing rod 81 is provided with a grabbing push rod for driving the grabbing rod 81 to extend or shorten.

[0057] Reference Figure 4 , Figure 8 and Figure 9 In the embodiment of the present application, the coating member 9 includes a slide plate 91 slidably arranged on the side wall of the grabbing rod 81, the slide plate 91 is located on the surface away from the clamping push rod 84, the length direction and the sliding direction of the slide plate 91 are parallel to the length direction of the grabbing rod 81, further, the grabbing rod 81 is provided with a push rod 92, the length direction of the push rod 92 is parallel to the length direction of the grabbing rod 81, and the end of the slide plate 91 is fixedly arranged on the output shaft of the push rod 92;

[0058] Reference Figure 4 , Figure 8 and Figure 9 The surface of the slide plate 91 facing the grabbing rod 81 is provided with a receiving groove 12, and the coating member 9 further includes a rotating rod 93 and an extension rod 94 disposed in the receiving groove 12;

[0059] Reference Figure 4 , Figure 8 and Figure 9 The extension rod 94 is rotatably arranged on the bottom wall of the receiving groove 12 and is a retractable structure. Furthermore, the cross section of the extension rod 94 is rectangular, and an extension push rod is arranged on the extension rod 94 to push the extension rod 94 to extend or shorten.

[0060] Reference Figure 4 , Figure 8 and Figure 9 The rotating rod 93 is fixedly arranged on the extension rod 94 and is perpendicular to the extension rod 94. The rotating rod 93 is a telescopic structure, and a rotating push rod 95 for driving the rotating rod 93 to extend or shorten is arranged on the rotating rod 93;

[0061] Reference Figure 4 、 Figure 8 and Figure 9 On the rotating rod 93, a second coating roller 96 is rotatably arranged, and the second coating roller 96 is used to coat solder paste on the joint surface of the main beam 2;

[0062] Reference Figure 4 、 Figure 8 and Figure 9 The coating member 9 further includes a coating motor 97 for driving the extension rod 94 to rotate, driving the rotating rod 93 to swing, and driving the second coating roller 96 to run along the bottom of the main beam 2.

[0063] When coating the arc surface at the bottom of the main beam 2 with solder paste, first, the grasping rod 81 grasps the middle part of the main beam 2. Subsequently, the pushing rod 92 is started, and the pushing rod 92 pushes the sliding plate 91 to slide out from the side of the grasping rod 81 and be located below the grasping rod 81. Then, the extension rod 94 extends to drive the rotating rod 93 to move out of the accommodation groove 12, and the second coating roller 96 is located directly below the main beam 2. Then, the rotating rod 93 is driven to extend by rotating the pushing rod 95, so that the second coating roller 96 abuts against the arc surface of the main beam 2. Then, the coating motor 97 is started, and the coating motor 97 drives the extension rod 94 to rotate, driving the rotating rod 93 to rotate, and the rotating rod 93 rotates to drive the second coating roller 96 to run along the bottom of the main beam 2, with simple and convenient operation.

[0064] Reference Figure 4 、 Figure 8 and Figure 9 In the embodiment of the present application, a second solder paste box 13 for placing solder paste is hinged on the rotating rod 93. The second coating roller 96 is rotatably arranged in the second solder paste box 13 and the lower half is located in the solder paste. A counterweight 14 is arranged at the bottom of the second solder paste box 13, and the counterweight 14 is used to keep the opening of the second solder paste box 13 in a horizontal state; when the second coating roller 96 rotates, it drives the solder paste in the second solder paste box 13 to adhere to the second coating roller 96, so as to be coated on the bottom of the main beam 2; under the action of the counterweight 14, the second solder paste box 13 is in a horizontal state, reducing the possibility of solder paste overflow due to the inclination of the second solder paste box 13.

[0065] Reference Figure 4 、 Figure 5 、 Figure 10 as well as Figure 11, in the embodiment of the present application, the clamping member 10 includes a clamping groove 101 formed on the side surface of the arc-shaped plate 61 and a fixed airbag 102 arranged in the clamping groove 101. The fixed airbag 102 is in an inflated state. The clamping groove 101 penetrates through the side surface of the arc-shaped plate 61. The fixed airbag 102 is strip-shaped. The rib plate 3 is fixed in the clamping groove 101 through the fixed airbag 102 and is placed on the main beam 2 as the arc-shaped plate 61 rotates, and then the rib plate 3 is pushed into the space between adjacent main beams 2; after the main beam 2 is installed on the template 1, the rib plate 3 is clamped in the clamping groove 101 and fixed through the fixed airbag 102. Subsequently, the arc-shaped plate 61 is rotated, and the arc-shaped plate 61 rotates to fit on the main beam 2. Then, the rib plate 3 is pushed, and the rib plate 3 moves along the clamping groove 101 and enters the space between adjacent main beams 2 and is clamped between adjacent main beams 2. Subsequently, hot melting fixation is performed, and the operation is simple and convenient.

[0066] Referring to Figure 3 , in the implementation of the present application, to ensure the operation of the second coating roller 96 along the bottom of the main beam 2, the grasping rod 81 needs to act on the middle position of the main beam 2. Otherwise, the second coating roller 96 cannot operate along the bottom of the main beam 2 to perform solder paste coating. Therefore, a placement rack 15 for placing the main beam 2 is provided on the base 4. The main beam 2 is placed on the placement rack 15 in a buckled state. A guiding rail 16 is provided on the base 4, and a moving notch 17 for the grasping rod 81 to enter is formed on the guiding rail 16. The guiding rail 16 is located above the main beam 2 and at the midline of the main beam 2; when the grasping rod 81 picks up the main beam 2, the grasping rod 81 enters the moving notch 17 and advances along the moving notch 17, and then clamps the corresponding main beam 2, so as to ensure clamping the middle part of the main beam 2 to complete the material picking.

[0067] The implementation principle of a steel formwork welding positioning device for bridge piers in the embodiment of the present application is as follows:

[0068] When welding Template 1, first, Template 1 is buckled on the base 4. At this time, the bottom of Template 1 is attached to and rests on the cooling water bag 11. Subsequently, the position of the main beam 2 is marked on Template 1 by the marking part 6, and then the main beam 2 is grasped by the grasping part 8. Then, the main beam 2 is hoisted to the marked position. During the hoisting of the main beam 2, solder paste is applied to the bottom of the main beam 2 by the applying part 9. Then, the main beam 2 is pressed down by the grasping part 8 so that the main beam 2 is closely attached to Template 1 and part of the solder paste overflows. Since the solder paste composition contains a flux and a thixotropic agent, after mixing, it forms a paste structure, making the solder paste have both fluidity and adhesiveness, and thus temporarily fixing the main beam 2 on Template 1. Subsequently, the rib plate 3 is clamped by the clamping part 10 and the rib plate 3 is fed between the main beams 2. At this time, the rib plate 3 is clamped on the main beam 2. When all the rib plates 3 are clamped on the main beam 2 and attached to Template 1, the heating part acts on the main beam 2, the rib plate 3 and Template 1 to heat and melt the solder paste. Under the action of the cooling water bag 11, the solder paste is quickly cooled to fix the main beam 2, the rib plate 3 and Template 1, and the operation is simple and convenient. At the same time, under the action of the cooling water bag 11, Template 1 is cooled, reducing the possibility of changes in the physical and chemical properties of Template 1 due to temperature rise.

[0069] The above are only the preferred embodiments of the application and are not intended to limit the application. For those skilled in the art, various changes and modifications can be made to the application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the application shall be included in the protection scope of the application.

Claims

1. A steel formwork welding positioning device for a bridge pier, characterized in that: The invention comprises a base (4) for placing a template (1), the template (1) is buckled on the base (4), a positioning frame (5) is arranged on the base (4), the positioning frame (5) is located on one side of the template (1), a marking piece (6) is arranged on the positioning frame (5), and the marking piece (6) is used to plan the position of the main beam (2) on the welding surface of the template (1); The base (4) is provided with a support frame (7), and the support frame (7) is provided with a grabbing member (8) and a coating member (9), the grabbing member (8) is used to grab and hoist the main beam (2) to the marked position, and apply downward pressure to the main beam (2) so that the main beam (2) is attached to the welding surface of the template (1); the coating member (9) is used to coat solder paste on the surface of the main beam (2) facing the template (1); The positioning frame (5) is provided with a clamping member (10), and the clamping member (10) is used to clamp the rib plate (3) and send it between the main beams (2); the grabbing member (8) presses down the main beam (2) so that part of the solder paste is moved out from the bonding surface to fix the rib plate (3); The positioning device also includes a heating element, which is used to heat the contact surfaces of the main beam (2), the rib plate (3) and the template (1) so that the solder paste is melted and the main beam (2) and the rib plate (3) are fixed on the template (1); A cooling water bag (11) is arranged on the base (4), and the template (1) is buckled on the cooling water bag (11) and attached to the cooling water bag (11) to cool the template (1) and the hot-melted solder paste.

2. The welding positioning device for a steel formwork for a bridge pier according to claim 1 is characterized in that: The marking member (6) comprises a plurality of arcuate plates (61) arranged on a positioning frame (5), wherein the arcuate plates (61) are parallel to the template (1) and have a transverse length greater than the transverse length of the template (1); the marking member (6) further comprises an elastic cloth (62) arranged on the arcuate plates (61), wherein the elastic cloth (62) is located on a concave surface of the arcuate plates (61), and the elastic cloth (62) is in a straight line shape in an initial state; one end of the arcuate plates (61) is rotatably arranged on the positioning frame (5), and the rotation axis of the arcuate plates (61) is parallel to the length direction of the template (1); a first driving member is arranged on the positioning frame (5), and the first driving member is used to drive the arcuate plates (61) to rotate to above the template (1) and to make the elastic cloth (62) fit on the surface of the template (1); the marking member (6) further comprises an identification member, and the identification member is used to form an identification line on the surface of the template (1).

3. The welding positioning device for a steel formwork for a bridge pier according to claim 2 is characterized in that: The identification member comprises a first solder paste box (64) arranged on the arc plate (61), solder paste is arranged in the first solder paste box (64), a first coating roller (65) is rotatably arranged in the first solder paste box (64), the lower half of the first coating roller (65) is immersed in the solder paste, one end of the elastic cloth (62) passes through the first solder paste box (64) and is supported on the first coating roller (65), and the identification member also comprises a winding shaft (66) rotatably arranged in the first solder paste box (64), the elastic cloth (62) is wound on the winding shaft (66), and when the elastic cloth (62) is pulled out of the first solder paste box (64), the elastic cloth (62) drives the first coating roller (65) to rotate so as to coat the solder paste on the elastic cloth (62).

4. The welding positioning device for a bridge pier steel formwork according to claim 3 is characterized in that: Two first coating rollers (65) are provided and are parallel to each other. The elastic cloth (62) is clamped between the two first coating rollers (65). The lower half of the first coating roller (65) located at the bottom is immersed in the solder paste, and a plurality of solder paste grooves (67) are evenly provided on the first coating roller (65). The first coating roller (65) located at the top is evenly provided with a plurality of protrusions (68), which are adapted to the solder paste grooves (67). The protrusions (68) are used to press the elastic cloth (62) into the solder paste grooves (67) to apply the solder paste on the elastic cloth (62).

5. The welding positioning device for a bridge pier steel formwork according to claim 1 is characterized in that: The grabbing member (8) comprises a grabbing rod (81) arranged on a support frame (7), the grabbing rod (81) being arranged vertically, a grabbing notch (82) being provided at the bottom of the grabbing rod (81), two clamping plates (83) being slidably arranged in the grabbing notch (82), the two clamping plates (83) being arranged opposite to each other, and the grabbing member (8) further comprises a second driving member for driving the clamping plates (83) to slide and clamp the fixed main beam (2).

6. The welding positioning device for a steel formwork for a bridge pier according to claim 5 is characterized in that: The coating member (9) comprises a slide plate (91) slidably arranged on the side wall of the grabbing rod (81), the length direction and sliding direction of the slide plate (91) are both parallel to the length direction of the grabbing rod (81), the slide plate (91) is provided with a receiving groove (12) on the surface facing the grabbing rod (81), and the coating member (9) further comprises a rotating rod (93) and an extension rod (94) arranged in the receiving groove (12), the extension rod (94) being rotatably arranged on the bottom wall of the receiving groove (12) and the extension rod (94) being a retractable structure. The rotating rod (93) is fixedly arranged on the extension rod (94) and is perpendicular to the extension rod (94); the rotating rod (93) is a telescopic structure; a second coating roller (96) is rotatably arranged on the rotating rod (93); the second coating roller (96) is used to coat solder paste on the bonding surface of the main beam (2); the coating member (9) also includes a coating motor (97) for driving the extension rod (94) to rotate and drive the rotating rod (93) to swing and drive the second coating roller (96) to run along the bottom of the main beam (2).

7. The welding positioning device for a bridge pier steel formwork according to claim 6 is characterized in that: A second solder paste box (13) for placing solder paste is hingedly connected to the rotating rod (93); the second coating roller (96) is rotatably arranged in the second solder paste box (13) with its lower half located in the solder paste; a counterweight block (14) is arranged at the bottom of the second solder paste box (13); the counterweight block (14) is used to keep the opening of the second solder paste box (13) in a horizontal state.

8. The welding positioning device for a bridge pier steel formwork according to claim 2 is characterized in that: The clamping member (10) comprises a clamping groove (101) provided on the side of the arc-shaped plate (61) and a fixing airbag (102) arranged in the clamping groove (101); the clamping groove (101) penetrates the side of the arc-shaped plate (61); the fixing airbag (102) is in the shape of an elongated strip; the rib plate (3) is fixed in the clamping groove (101) by the fixing airbag (102) and is placed on the main beam (2) as the arc-shaped plate (61) rotates, and then the rib plate (3) is pushed into between adjacent main beams (2).

9. The welding positioning device for a bridge pier steel formwork according to claim 5 is characterized in that: The base (4) is provided with a placement frame (15) for placing the main beam (2), the main beam (2) is placed on the placement frame (15) in a buckled state, the base (4) is provided with a guide rail (16), the guide rail (16) is provided with a moving notch (17) for the grabbing rod (81) to enter, and the guide rail (16) is located above the main beam (2) and at the center line of the main beam (2).

10. The welding positioning device for a bridge pier steel formwork according to claim 5, characterized in that: The support frame (7) comprises a plurality of support rods (71) and a rectangular frame (72); the support rods (71) are fixedly arranged on the base (4); the rectangular frame (72) is fixedly arranged at the ends of the support rods (71); the grabbing rod (81) is arranged in the rectangular frame (72); the grabbing rod (81) is a telescopic structure; a two-axis slide is arranged in the rectangular frame (72); and the grabbing rod (81) is arranged on the two-axis slide.

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