Clamping device for rapid positioning of box girder steel formwork welding

Abstract

This utility model discloses a clamping device for quickly positioning and welding box girder steel molds, belonging to the technical field of box girder steel molds. It includes a base plate, with two mounting brackets on both sides of the top of the base plate, and a positioning mechanism located at the top of the mounting brackets. A clamping block is slidably connected to one side of the top of one mounting bracket, and an adjusting bolt is rotatably connected to the other side of the top of the other mounting bracket. One end of the adjusting bolt passes through one of the mounting brackets and is threadedly connected to the clamping block. A clamping assembly is located at the top of the base plate. Through this method, one mounting bracket, in conjunction with the clamping block and adjusting bolt, clamps and positions one end of the box girder steel mold. The other mounting bracket moves via a movable plate at one end in conjunction with an electric push rod, clamping both ends of the box girder steel mold in conjunction with one of the mounting brackets. This allows for positioning and clamping of the box girder steel mold, improving the clamping effect of the fixture.

Description

Technical Field

[0001] This utility model relates to the field of box girder steel mold technology, specifically to a clamping device for quickly positioning and welding box girder steel molds. Background Technology

[0002] Box girder steel formwork, with its box-shaped cross-section, is the best structural form for bridges with large spans. Its closed thin-walled section provides high torsional stiffness, making it particularly advantageous for curved bridges and bridges constructed using cantilever techniques. Both the top and bottom plates have large areas, effectively resisting positive and negative bending moments and meeting reinforcement requirements. They also exhibit good dynamic characteristics and low shrinkage deformation. During welding of the box girder steel formwork, clamping devices are required for positioning.

[0003] Currently, a Chinese patent discloses a workpiece positioning and fixing device for welding and processing steel box girder templates (authorization announcement number CN215393481U). The upper end of the limiting mechanism is moved out of the limiting hole, and the pressing shell is pushed according to the size of the steel box girder. Under the action of the rectangular block, the slider slides in the second shell to position each pressing shell. The limiting mechanism is used to fix the pressing shells with the adjusted spacing, and the second templates with different intervals are limited and fixed. The pushing mechanism pushes the second shell to move downward to clamp the second template on the first template. During the process of the pressing shell moving downward and contacting the top of the second template, the buffer mechanism is used to facilitate the clamping and fixing of the second templates of different sizes. This makes it convenient to weld the connection between the bottom of the second template and the top of the first template with the help of an external welding mechanism.

[0004] According to the aforementioned reference materials, in the above-mentioned device, the upper end of the limiting mechanism is moved out of the limiting hole, and the pressing shell is pushed according to the size of the steel box girder. The limiting mechanism is used to fix the pressing shell with the adjusted spacing position. The pushing mechanism pushes the second shell to move downward, thereby causing the pressing shell to clamp the second template on the first template. The buffer mechanism is used to facilitate the clamping and fixing of second templates of different sizes, which facilitates the welding of the connection between the lower part of the second template and the top of the first template by means of an external welding mechanism. However, when welding the box girder steel mold, the support effect of the second shell and the pressing shell on the box girder steel mold is not ideal. The box girder steel mold is prone to deviation when welding at different angles, which makes it inconvenient to position and clamp the box girder steel mold, thus reducing the effectiveness of the device.

[0005] Based on this, the present invention designs a clamping device for quickly positioning and welding box girder steel molds to solve the above problems. Utility Model Content

[0006] In view of the above-mentioned shortcomings of the existing technology, the present invention provides a clamping device for quickly positioning and welding box girder steel molds.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A clamping device for quickly positioning and welding box girder steel molds includes a base plate, two mounting brackets on both sides of the top of the base plate, and a positioning mechanism located at the top of the mounting brackets. A clamping block is slidably connected to one side of the top of one of the mounting brackets, and an adjusting bolt is rotatably connected to the other side of the top of the other mounting bracket. One end of the adjusting bolt passes through one of the mounting brackets and is threadedly connected to the clamping block. A clamping assembly is provided at the top of the base plate.

[0009] Furthermore, the positioning mechanism also includes a movable plate fixedly connected to one end of another mounting bracket, the movable plate being slidably connected to the inner wall of one of the mounting brackets, and an electric push rod being installed at one end of one of the mounting brackets, one end of the electric push rod passing through one of the mounting brackets and being fixedly connected to the movable plate.

[0010] Furthermore, a limiting plate is fixedly connected to the top of the inner wall of another mounting bracket.

[0011] Furthermore, a support rod is fixedly connected to the top of the mounting bracket, and a fixing plate is hinged to one side of the top of the support rod.

[0012] Furthermore, two spring telescopic rods are hinged between the other side of the fixing plate and the support rod.

[0013] Furthermore, the clamping assembly includes two sliders fixedly connected to the bottom end of one of the mounting brackets, and two grooves that engage with the sliders are provided on both sides of the top of the base plate.

[0014] Furthermore, a bidirectional screw is rotatably connected to one side of the base plate. One end of the bidirectional screw passes through the inner wall of two of the sliding grooves and is threadedly connected to two of the sliders. Protective sleeves are fitted on both ends of the bidirectional screw, and the two ends of the protective sleeves are fixedly connected to the slider and the base plate, respectively.

[0015] Furthermore, a guide rod is fixedly connected to the inner wall of the base plate, and the guide rod is disposed on the inner wall of the other two slide grooves, and the other two sliders are slidably connected to the guide rod. Beneficial effects

[0016] 1. The top of the mounting frame is L-shaped, which can fix both ends of the box girder steel mold. The top of one mounting frame, in conjunction with the clamping block and adjusting bolt, can clamp and position one end of the box girder steel mold. The other mounting frame, through the movable plate at one end, in conjunction with the electric push rod, can drive the other mounting frame to move on the base plate. In conjunction with one of the mounting frames, it can clamp and fix both ends of the box girder steel mold. The limiting plate can improve the clamping effect of the fixture. The fixing plate on the support rod can be adjusted at a certain angle according to the outer wall of the box girder steel mold through the spring telescopic rods at the upper and lower ends, to support the box girder steel mold and to position and clamp the box girder steel mold, thereby improving the clamping effect of the fixture on the box girder steel mold.

[0017] 2. One of the mounting brackets, through the cooperation of two sliders at the bottom and a sliding groove, can drive the two mounting brackets on both sides of the top to move towards the center to guide and align the box girder steel mold. The two sliders, through a bidirectional screw, can drive the mounting brackets on both sides of the bottom plate to move to one side simultaneously for welding the box girder steel mold. The guide rod and the other two sliders can guide the mounting brackets. The protective sleeve can extend and retract with the movement of two of the sliders, which can protect the bidirectional screw and position and clamp the box girder steel mold, improving the stability of the box girder steel mold during welding. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a perspective view of the main structure of the clamping device for welding the steel mold of the box girder of this utility model.

[0020] Figure 2 This is a perspective view of the positioning mechanism structure in the clamping device for welding the steel mold of the box girder of this utility model.

[0021] Figure 3 This is a perspective view of a partial structure of the positioning mechanism in the clamping device for welding the steel mold of a box girder according to the present invention.

[0022] Figure 4 This is a perspective view of the clamping component structure in the clamping device for welding the steel mold of the box girder of this utility model.

[0023] The labels in the diagram represent:

[0024] 100. Base plate; 200. Mounting bracket; 300. Positioning mechanism; 310. Clamping block; 320. Adjusting bolt; 330. Moving plate; 340. Electric push rod; 350. Limiting plate; 360. Support rod; 370. Fixing plate; 380. Spring telescopic rod; 390. Clamping assembly; 391. Slider; 392. Slide groove; 393. Bidirectional screw; 394. Protective sleeve; 395. Guide rod. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0026] The present invention will be further described below with reference to the embodiments.

[0027] In some embodiments, please refer to the appendix to the instruction manual. Figure 1-4 The clamping device for quickly positioning the welding of the box girder steel mold includes a base plate 100, two mounting brackets 200 are provided on both sides of the top of the base plate 100, and a positioning mechanism 300 is provided. The positioning mechanism 300 is located at the top of the mounting bracket 200. A clamping block 310 is slidably connected to one side of the top of one mounting bracket 200, and an adjusting bolt 320 is rotatably connected to the other side of the top of one mounting bracket 200. One end of the adjusting bolt 320 passes through one of the mounting brackets 200 and is threadedly connected to the clamping block 310. A clamping assembly 390 is provided at the top of the base plate 100.

[0028] It should be noted that the box girder steel formwork welding fixture consists of a base, positioning elements, clamping devices, supporting structures, guiding devices, adjusting mechanisms, and a control system. The positioning elements physically restrict the degrees of freedom of the box girder steel formwork to determine its position. The clamping devices and supporting structures work together to provide mechanical force to prevent the box girder steel formwork from moving during welding and to support its weight. The guiding devices help the box girder steel formwork and welding tools to be accurately aligned, reducing welding errors. The clamping blocks 310 and limiting plates 350 on the two mounting brackets 200 can clamp and fix the box girder steel formwork, and the fixing plate 370 supports and positions one side of the box girder steel formwork, which can clamp and position the box girder steel formwork for welding. The positioning mechanism 300 and the clamping components 390 work together to optimize the positioning fixture of the box girder steel formwork without affecting the normal use of the box girder steel formwork welding fixture.

[0029] The box girder steel mold is placed between two mounting brackets 200. The clamping block 310 cooperates with the top of one of the mounting brackets 200 to clamp one end of the box girder steel mold. Manually rotating the adjusting bolt 320, which is threadedly connected to the clamping block 310, moves the clamping block 310 to one side to clamp and fix the box girder steel mold. This clamping and positioning of one end of the box girder steel mold can improve the welding accuracy of the box girder steel mold.

[0030] In some embodiments, such as Figure 2 and Figure 3 As shown, in a preferred embodiment of the present invention, the positioning mechanism 300 further includes a movable plate 330 fixedly connected to one end of another mounting bracket 200. The movable plate 330 is slidably connected to the inner wall of one of the mounting brackets 200. An electric push rod 340 is installed at one end of one of the mounting brackets 200. One end of the electric push rod 340 passes through one of the mounting brackets 200 and is fixedly connected to the movable plate 330.

[0031] The control system drives one end of the electric push rod 340 to slide the moving plate 330 to one end, so that the other mounting bracket 200 can be adjusted according to the length of the box girder steel mold to clamp both ends of the box girder steel mold. Then, the electric push rod 340 drives the moving plate 330 and the other mounting bracket 200 to move closer to one of the mounting brackets 200 to squeeze and fix both ends of the box girder steel mold, thus clamping and fixing the box girder steel mold.

[0032] In this embodiment of the utility model, a limiting plate 350 is fixedly connected to the top of the inner wall of another mounting bracket 200.

[0033] The limiting plate 350 on the inner wall of the other mounting bracket 200 comes into contact with the box girder steel mold, increasing the friction coefficient between the other mounting bracket 200 and the box girder steel mold, which can improve the clamping effect of the fixture on the box girder steel mold.

[0034] In this embodiment of the utility model, a support rod 360 is fixedly connected to the top of the mounting bracket 200, and a fixing plate 370 is hinged to one side of the top of the support rod 360.

[0035] When the two mounting brackets 200 clamp the box girder steel mold, the support rod 360 on the mounting bracket 200 cooperates with the fixing plate 370 to fit one side of the box girder steel mold, thereby improving the support effect of the clamp on the box girder steel mold.

[0036] In this embodiment of the utility model, two spring telescopic rods 380 are hinged between the other side of the fixing plate 370 and the support rod 360.

[0037] When the two spring telescopic rods 380 between the fixed plate 370 and the support rod 360 are compressed, they will expand and contract to a certain extent, so that the fixed plate 370 can be adjusted according to the appearance of the box girder steel mold, thereby improving the support effect of the device on the box girder steel mold.

[0038] In some embodiments, such as Figure 4 As shown, in a preferred embodiment of the present invention, the clamping assembly 390 includes two sliders 391 fixedly connected to the bottom end of one of the mounting brackets 200, and two grooves 392 that fit into the sliders 391 are provided on both sides of the top of the base plate 100.

[0039] The two mounting brackets 200 on the top sides of the base plate 100 can move from the middle of the two sides along the slide groove 392 via the bottom slider 391, which can align the two box girder steel molds and facilitate the welding of the box girder steel molds.

[0040] In this embodiment of the utility model, a bidirectional screw 393 is rotatably connected to one side of the base plate 100. One end of the bidirectional screw 393 passes through the inner wall of two of the sliding grooves 392 and is threadedly connected to two of the sliders 391. Both ends of the bidirectional screw 393 are fitted with protective sleeves 394. The two ends of the protective sleeves 394 are fixedly connected to the sliders 391 and the base plate 100, respectively.

[0041] The bidirectional screw 393 is manually rotated and connected to two sliders 391 via external threads at both ends. This simultaneously moves two mounting brackets 200 on both sides of the top of the base plate 100 from one side to the middle, aligning the two box girder steel molds and improving the welding effect of the box girder steel molds. When two sliders 391 move to the sides, the protective sleeve 394 extends and retracts with the movement of the two sliders 391, which can protect the bidirectional screw 393.

[0042] In this embodiment of the utility model, a guide rod 395 is fixedly connected to the inner wall of the base plate 100. The guide rod 395 is disposed on the inner wall of the other two slide grooves 392, and the other two sliders 391 are slidably connected to the guide rod 395.

[0043] When the mounting bracket 200 moves to one side, the other two sliders 391 move to one side along the outer wall of the guide rod 395 in the other two slide grooves 392, driving the two box girder steel molds to align and weld, improving the stability of the fixture when guiding the box girder steel molds, and improving the welding effect of the box girder steel molds.

[0044] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A clamping device for quickly positioning and welding box girder steel molds, comprising a base plate (100), wherein two mounting brackets (200) are provided on both sides of the top of the base plate (100), characterized in that: It also includes a positioning mechanism (300), which is disposed at the top of the mounting bracket (200). A clamping block (310) is slidably connected to one side of the top of one of the mounting brackets (200), and an adjusting bolt (320) is rotatably connected to the other side of the top of one of the mounting brackets (200). One end of the adjusting bolt (320) passes through one of the mounting brackets (200) and is threadedly connected to the clamping block (310). A clamping assembly (390) is disposed at the top of the base plate (100).

2. The fixture device for rapid positioning of the steel mold welding of the box girder as claimed in claim 1, wherein, The positioning mechanism (300) further includes a movable plate (330) fixedly connected to one end of another mounting bracket (200). The movable plate (330) is slidably connected to the inner wall of one of the mounting brackets (200). One end of one of the mounting brackets (200) is equipped with an electric push rod (340). One end of the electric push rod (340) passes through one of the mounting brackets (200) and is fixedly connected to the movable plate (330).

3. The fixture device for rapid positioning of steel form welding of box girder as claimed in claim 1 wherein, A limiting plate (350) is fixedly connected to the top of the inner wall of another mounting bracket (200).

4. The fixture apparatus for rapid positioning of steel form welds for box girders as claimed in claim 1 wherein, The top of the mounting bracket (200) is fixedly connected to a support rod (360), and a fixing plate (370) is hinged to one side of the top of the support rod (360).

5. The fixture device for rapid positioning of the steel mold welding of the box girder according to claim 4, characterized in that, Two spring telescopic rods (380) are hinged between the other side of the fixed plate (370) and the support rod (360).

6. The fixture apparatus for rapid positioning of steel form welds for box girders as claimed in claim 1 wherein, The clamping assembly (390) includes two sliders (391) fixedly connected to the bottom end of one of the mounting brackets (200), and two grooves (392) that fit into the sliders (391) are provided on both sides of the top of the base plate (100).

7. The clamping device for rapid positioning of box girder steel mold welding according to claim 6, characterized in that, A bidirectional screw (393) is rotatably connected to one side of the base plate (100). One end of the bidirectional screw (393) passes through the inner wall of two of the slide grooves (392) and is threadedly connected to two of the sliders (391). Both ends of the bidirectional screw (393) are fitted with protective sleeves (394). The two ends of the protective sleeves (394) are fixedly connected to the sliders (391) and the base plate (100) respectively.

8. The fixture apparatus for rapid positioning of steel form welding of a box girder as claimed in claim 6 wherein, The inner wall of the base plate (100) is fixedly connected to a guide rod (395), the guide rod (395) is disposed on the inner wall of the other two slide grooves (392), and the other two sliders (391) are slidably connected to the guide rod (395).

Images