A steel formwork welding positioning device for bridge piers

Abstract

The present application relates to a welding positioning device for a steel formwork of a pier, belonging to the technical field of steel formwork welding. It includes a base for placing the formwork, the formwork is buckled on the base, a positioning frame is arranged on the base, the positioning frame is located on one side of the formwork, and a scribing member is arranged on the positioning frame; a support frame is arranged on the base, and a gripping member and a coating member are arranged on the support frame. The gripping member is used to grip and hoist the main beam and send it to the scribing position, and apply a downward pressure to the main beam to make the main beam 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; a clamping member is arranged on the positioning frame, and the clamping member is used to clamp the rib plate and send 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; a cooling water bag is arranged on the base, and the formwork is buckled on the cooling water bag and fits on the cooling water bag to cool the formwork and the melted solder paste. The present application has the advantages of improving the manufacturing precision and processing efficiency of the steel formwork.

Description

Technical Field

[0001] This application relates to the technical field of steel formwork welding, and in particular 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 construction engineering field 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, during the welding operation, 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 general 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 realized through the following technical solutions: A welding positioning device for steel formwork used in bridge piers, including a base for placing the formwork, the formwork is buckled on the base, a positioning frame is arranged on the base, the positioning frame is located on one side of the formwork, a scribing member is arranged on the positioning frame, and the scribing member is used to plan the position of the main beam on the welding surface of the formwork;

[0006] A support frame is arranged on the base, a grasping member and a coating member are arranged on the support frame, the grasping member is used to grasp and hoist the main beam to the scribed position and apply a downward pressure to the main beam to make the main beam 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 arranged on the positioning frame, the clamping member is used to clamp the rib plate and feed it between the main beams, and the grasping 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 is 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 the side surface of the arc-shaped plate. The fixed airbag is strip-shaped. 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 member, then grasp the main beam through the grasping member, 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 member, and then press down the main beam through the grasping member so that the main beam fits tightly on the template and part of the solder paste overflows. Since the solder paste components include flux and thixotropic agent, after mixing, they form a paste structure, making the solder paste have both fluidity and adhesion, and thus temporarily fixing the main beam on the template. Subsequently, clamp the rib plate through the clamping member and send the rib plate between the main beams. At this time, the rib plate is clamped on the main beam. When all the rib plates are clamped on the main beam and attached to the template, act on the main beam, rib plate and template through the heating member 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, and 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, thus reducing the possibility of movement of the main beam and rib plate, and improving the welding accuracy of the template; at the same time, after all the main beams and rib plates are arranged, solder paste welding is carried out, and preliminary fixing of the main beam and rib plate is carried out, improving the preliminary fixing efficiency, and thus improving the welding efficiency of the template; when the solder paste cools down, then carry out 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 in the embodiments. It should be understood that the following drawings only show some embodiments of the present application, so they should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other relevant drawings can also be obtained based on these drawings.

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

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

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

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

[0027] Figure 5 It is a schematic diagram of the hot melt 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. Obviously, 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 present application claimed, 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. Refer to Figure 1 and Figure 2 , the steel formwork welding positioning device for bridge piers includes a base 4 for placing formwork 1. Formwork 1 is buckled on base 4. A positioning frame 5 is arranged on base 4. Positioning frame 5 is located on one side of formwork 1. A marking member 6 is arranged on positioning frame 5. Marking member 6 is used to form a marking line on the welding surface of formwork 1 to plan the position of main girder 2 on formwork 1;

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

[0047] Refer to Figure 4 , a clamping member 10 is arranged on positioning frame 5. Clamping member 10 is used to clamp rib plate 3 and feed it between main girders 2. Grasping member 8 presses down main girder 2 to make part of the solder paste move out from the fitting surface to fix rib plate 3;

[0048] Refer 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 main girder 2, rib plate 3 and formwork 1 to melt the solder paste to fix main girder 2 and rib plate 3 on formwork 1. In the embodiments 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 out flames to heat main girder 2 and rib plate 3, so that the solder paste melts, and the operation is simple and convenient;

[0049] Refer to Figure 4 andFigure 5 A cooling water bag 11 is provided on the base 4, and cooling water is filled in the cooling water bag 11. The template 1 is buckled and attached to the cooling water bag 11 to cool the template 1 and the hot-melted solder paste.

[0050] When welding the template 1, firstly, the template 1 is buckled on the base 4. At this time, the bottom of the template 1 is attached to and supported on the cooling water bag 11. Then, the position of the main beam 2 is marked on the template 1 by the marking piece 6, and then the main beam 2 is grabbed by the grabbing piece 8, and 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 coating piece 9, and then the main beam 2 is pressed down by the grabbing piece 8, so that the main beam 2 is closely attached to the template 1 and part of the solder paste overflows. Because the solder paste contains flux and thixotropic agent, a paste structure is formed after mixing, so that the solder paste has both fluidity and adhesion, thereby temporarily welding the main beam 2. The ribs 3 are fixed on the template 1, and then the ribs 3 are clamped by the clamping parts 10 and sent between the main beams 2. At this time, the ribs 3 are clamped on the main beams 2. When all the ribs 3 are clamped on the main beams 2 and attached to the template 1, the main beams 2, the ribs 3 and the template 1 are acted on by the heating parts 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 beams 2, the ribs 3 and the template 1. The operation is simple and convenient. At the same time, under the action of the cooling water bag 11, the template 1 is cooled, which reduces the possibility of changes in the physical and chemical properties of the template 1 due to the increase in temperature.

[0051] Reference Figure 3 and Figure 4 In the embodiment of the present application, the marking member 6 includes a plurality of arc plates 61 arranged on the positioning frame 5, the positioning frame 5 includes two mounting plates 51 and a positioning rod 52 arranged between the two mounting plates 51, the arc plate 61 is arranged on the positioning rod 52, the arc plate 61 is parallel to the template 1 and the lateral length is greater than the lateral length of the template 1, the marking member 6 also includes an elastic cloth 62 arranged on the arc plate 61, the elastic cloth 62 is located on the concave surface of the arc plate 61, the elastic cloth 62 is in a straight line in the initial state, one end of the arc plate 61 is rotatably arranged on the positioning frame 5, the rotation axis of the arc plate 61 is parallel to the length direction of the template 1, a first driving member is arranged on the positioning frame 5, the first driving member is used to drive the arc plate 61 to rotate to the top of 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 arranged on one side of the mounting plate 51, the positioning rod 52 is rotatably arranged on the mounting plate 51 and is coaxially arranged on the output shaft of the first motor 63, the marking member 6 also includes an identification member, the identification member is used to form an identification line on the surface of the template 1;

[0052] Reference 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 uniformly 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 uniformly arranged on the first coating roller 65 located above. The protrusions 68 are strip-shaped and 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 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 part 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 bulges in the middle. 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 smoothly 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 spans 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] Refer to Figure 4 , Figure 8 and Figure 9 , a second coating roller 96 is rotatably arranged on the rotating rod 93, and the second coating roller 96 is used for coating solder paste on the joint surface of the main beam 2;

[0062] Refer to 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 solder paste on the arc surface at the bottom of the main beam 2, first, the grasping rod 81 grasps the middle part of the main beam 2. Subsequently, the pushing rod 92 is started. 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. Subsequently, 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. The coating motor 97 drives the extension rod 94 to rotate, driving the rotating rod 93 to rotate. The rotating rod 93 rotates to drive the second coating roller 96 to run along the bottom of the main beam 2, and the operation is simple and convenient.

[0064] Refer to 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 caused by the inclination of the second solder paste box 13.

[0065] Refer to 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 disposed 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 by 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 snapped into the clamping groove 101 and fixed by 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. 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, and then 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. 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 picking up.

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

[0068] When welding Template 1, first fasten Template 1 onto the base 4. At this time, the bottom of Template 1 is attached to and rests on the cooling water bag 11. Subsequently, use the scribing part 6 to mark the position of the main beam 2 on Template 1, then use the gripping part 8 to grab the main beam 2, and then hoist the main beam 2 to the scribed position. During the hoisting of the main beam 2, use the coating part 9 to apply solder paste to the bottom of the main beam 2, and then use the gripping part 8 to press down the main beam 2 so that the main beam 2 closely adheres 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-like structure, making the solder paste have both fluidity and adhesiveness, thereby temporarily fixing the main beam 2 on Template 1. Subsequently, use the clamping part 10 to clamp the rib plate 3 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 adhered to Template 1, apply the heating part to the main beam 2, rib plate 3 and Template 1 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, rib plate 3 and Template 1. The operation is simple and convenient; at the same time, under the action of the cooling water bag 11, cool Template 1, 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 used 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 bridge piers, characterized in that: It includes a base (4) for placing the 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 scribing member (6) is arranged on the positioning frame (5), and the scribing member (6) is used to plan the position of the main beam (2) on the welding surface of the template (1); A support frame (7) is arranged on the base (4), a grasping member (8) and a coating member (9) are arranged on the support frame (7), the grasping member (8) is used to grasp and hoist the main beam (2) to the scribed position and apply a downward pressure to the main beam (2) to make the main beam (2) fit on 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 grasping member (8) includes a grasping rod (81) arranged on the support frame (7), the grasping rod (81) is arranged vertically, a grasping notch (82) is opened at the bottom of the grasping rod (81), two clamping plates (83) are slidably arranged in the grasping notch (82), the two clamping plates (83) are arranged opposite to each other, and the grasping member (8) further includes a second driving member for driving the clamping plates (83) to slide and clamp the main beam (2) fixedly; The coating member (9) includes a sliding plate (91) slidably arranged on the side wall of the grasping rod (81), the length direction and the sliding direction of the sliding plate (91) are both parallel to the length direction of the grasping rod (81), a receiving groove (12) is opened on the surface of the sliding plate (91) facing the grasping rod (81), the coating member (9) further includes a rotating rod (93) and an extension rod (94) arranged in the receiving groove (12), the extension rod (94) is rotatably arranged on the bottom wall of the receiving groove (12) and the extension rod (94) is a telescopic 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 fitting surface of the main beam (2), and the coating member (9) further includes a coating motor (97) for driving the extension rod (94) to rotate to drive the rotating rod (93) to swing to drive the second coating roller (96) to run along the bottom of the main beam (2); A clamping member (10) is arranged 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), and 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); The positioning device further includes a heating member, and the heating member is used to heat the fitting surfaces of the main beam (2), the rib plate (3) and the template (1) to melt the solder paste to fix the main beam (2) and the rib plate (3) 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 fits on the cooling water bag (11) to cool the template (1) and the melted solder paste; When the template (1) is welded, first, the template (1) is buckled on the base (4). At this time, the bottom of the template (1) is attached to and bears on the cooling water bag (11). Subsequently, the position of the main beam (2) is marked on the template (1) by the marking member (6). Then, the main beam (2) is grasped by the grasping member (8), and 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 member (9). Then, the main beam (2) is pressed down by the grasping member (8) so that the main beam (2) is closely attached to the 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 adhesion, thereby temporarily fixing the main beam (2) on the template (1). Subsequently, the rib plate (3) is clamped by the clamping member (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 the template (1), the heating member acts on the main beam (2), the rib plate (3) and the template (1) to heat and melt the solder paste. Under the action of the cooling water bag (11), the solder paste is rapidly cooled to fix the main beam (2), the rib plate (3) and the template (1).

2. The welding positioning device for the steel formwork of a pier according to claim 1, characterized in that: The marking member (6) includes a plurality of arc-shaped plates (61) arranged on the positioning frame (5). 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 marking member (6) further includes an elastic cloth (62) arranged on the arc-shaped plates (61). The elastic cloth (62) is located on the concave surface of the arc-shaped plates (61). The initial state of the elastic cloth (62) is linear. One end of the arc-shaped plate (61) is rotatably arranged on the positioning frame (5). The rotation axis of the arc-shaped plate (61) is parallel to the length direction of the template (1). A first driving member is arranged on the positioning frame (5). 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 marking member (6) further includes a marking component, and the marking component is used to form a marking line on the surface of the template (1).

3. A steel formwork welding positioning device for bridge piers according to claim 2, characterized in that: The marking component includes a first solder paste box (64) arranged on the arc-shaped 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 received on the first coating roller (65). The marking component further 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 from the first solder paste box (64), the elastic cloth (62) drives the first coating roller (65) to rotate and apply the solder paste on the elastic cloth (62).

4. A steel formwork welding positioning device for a bridge pier according to claim 3, characterized in that: There are two first coating rollers (65) which are arranged in parallel with 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 on the first coating roller (65). A plurality of protrusions (68) are evenly arranged on the first coating roller (65) located above. The protrusions (68) are adapted to the solder paste grooves (67), and 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).

5. A steel formwork welding positioning device for bridge piers according to claim 1, characterized in that: 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 its 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 make the opening of the second solder paste box (13) in a horizontal state.

6. The welding positioning device for the steel formwork of a pier according to claim 2, characterized in that: 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 clamping groove (101) penetrates through the side surface of the arc-shaped plate (61). The fixed airbag (102) is in a strip shape. 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).

7. A steel formwork welding positioning device for bridge piers according to claim 1, characterized in that: A placement rack (15) for placing the main beam (2) is arranged on the base (4). The main beam (2) is placed on the placement rack (15) in a buckled state. A guiding rail (16) is arranged on the base (4). 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).

8. A steel formwork welding positioning device for bridge piers according to claim 1, characterized in that: 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). The rectangular frame (72) is fixedly arranged at the end 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), and the grasping rod (81) is arranged on the two-axis slide.

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