Multifunctional machining rack for prefabricated box girder toothed plate reinforcing steel bars
By designing a multi-functional processing bench and utilizing a combination of operating and mobile platforms for positioning, the problem of difficult positioning during welding of steel reinforcement in precast box girder toothed plates was solved, achieving efficient and precise welding results and improving construction quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GANSU ROAD & BRIDGE CONSTR GROUP
- Filing Date
- 2025-05-07
- Publication Date
- 2026-04-14
AI Technical Summary
The welding of steel reinforcement bars in precast box girder toothed plates requires measuring and positioning with a tape measure, which is time-consuming and easily affected by the operator, leading to deviations in welding dimensions and affecting construction quality.
A multifunctional processing table was designed, comprising a support, an operating platform, a moving platform, and a fixing device. The operating platform has a slot for limiting movement, and the moving platform is height-adjustable via the fixing device and positioned using a scale, simplifying the positioning process and improving welding accuracy.
By simplifying the positioning process, the accuracy and efficiency of welding were improved, the welding difficulty was reduced, and the construction quality was ensured.
Smart Images

Figure CN224115507U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of precast box girder toothed plate reinforcement processing, and in particular to a multi-functional processing table for precast box girder toothed plate reinforcement. Background Technology
[0002] Precast box girders are a type of precast component mainly used in bridge engineering. They are produced in a precast plant or on-site, where steel bars are processed and tied, concrete is poured to form a box-shaped beam, and then the beam is transported to the bridge construction site for installation and connection.
[0003] The welding of the precast box girder toothed plate reinforcement is mostly carried out on the ground or platform. The welding process requires measuring with a tape measure for positioning, which is time-consuming. Moreover, the welding process is easily affected by the operator's work attitude, and the dimensions of the welded toothed plate reinforcement are prone to deviation, which affects the construction quality. Utility Model Content
[0004] The technical problem to be solved by this utility model is to provide a multi-functional processing table for precast box girder toothed plate reinforcement that is simple to operate and improves welding quality.
[0005] To solve the above problems, the present invention provides a multi-functional processing table for precast box girder toothed plate reinforcement, characterized in that: the table includes a support, an operating platform fixed to the top of the support, and a storage platform; the bottom of the support is provided with a reserved hole; a set of moving slots are symmetrically provided on one side of the support on the same side as the operating platform, and the moving platform is connected to the moving slots by a fixing device; a scale is provided on the side of the moving slots; a tool rack is provided on one side of the support adjacent to the operating platform; and a slot is provided on the operating platform.
[0006] The bracket is welded from ∠50×50×5 angle steel.
[0007] The operating platform is made of ∠50×50×5 angle steel. One side of the angle steel is welded to the bracket, and the other side is chiseled with 6 slots according to the size of the toothed plate steel bar using an angle grinder.
[0008] The storage platform is formed by welding three ∠50×50×5 angle steels onto the bracket.
[0009] The tool rack is equipped with a platform for placing welding gun holders and welding rod cylinders.
[0010] The fixing device consists of a handle, a bolt rod, a limiting plate, and a pad; one end of the bolt rod is connected to the handle, and the other end is connected to the pad; the limiting plate is fixed on the bolt rod; the pad has threads; and the bolt rod is connected to the moving platform.
[0011] The mobile platform is made of ∠50×50×5 angle steel, and a set of bolt holes are symmetrically provided at both ends of the angle steel close to the support. The bolt rod passes through the bolt hole and the moving groove of the mobile platform and is rotatably connected to the thread in the pad plate.
[0012] The bolt rod is rotatably connected to the bolt hole of the moving platform; the bolt rod is slidably connected to the moving groove.
[0013] This utility model has the following advantages compared with the prior art:
[0014] 1. This utility model is equipped with an operating platform. The operating platform has 6 slots chiseled with an angle grinder according to the size of the toothed plate steel bar, which serve as the limiting slots for the welding platform of the toothed plate steel bar semi-finished product. Therefore, when using it, you only need to put the steel bar into the slot of the operating platform to weld it. There is no need to use a tape measure to measure and position it. The operation is simple and the construction efficiency is high.
[0015] 2. In this utility model, the reinforcing bars are limited by the slot of the operating platform, resulting in high precision of the finished product.
[0016] 3. This utility model provides a personnel operation platform, which reduces the difficulty of welding and improves the welding quality.
[0017] 4. The platform described in this utility model is easy to process, and can be processed using tools and equipment in the box girder prefabrication plant. Attached Figure Description
[0018] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings.
[0019] Figure 1 This is a perspective view of the present invention.
[0020] Figure 2 This is a partial three-dimensional structural diagram of the present invention.
[0021] In the diagram: 1-Bracket; 2-Operating platform; 3-Placement platform; 4-Moving platform; 5-Reserved hole; 6-Tool rack; 7-Welding rod tube; 8-Fixing device; 80-1 Handle; 802-Bolt rod; 803-Limiting plate; 804-Plate; 9-Scale; 10-Moving groove; 11-Welding gun holder. Detailed Implementation
[0022] like Figures 1-2As shown, a multi-functional processing table for precast box girder toothed plate reinforcement is provided. The table includes a support 1, an operating platform 2 fixed to the top of the support 1, and a storage platform 3. The bottom of the support 1 is provided with a reserved hole 5; a set of moving slots 10 are symmetrically provided on one side of the support 1 on the same side as the operating platform 2, and the moving platform 4 is connected to the moving slot 10 through a fixing device 8; a scale 9 is provided on the side of the moving slot 10; a tool rack 6 is provided on one side of the support 1 adjacent to the operating platform 2; and the operating platform 2 is provided with a slot.
[0023] Among them, support 1 is welded from ∠50×50×5 angle steel (200cm long, 45.2cm wide, and 120cm high; the size can be adjusted according to the size of the toothed plate steel bar), which serves as the main body of the platform.
[0024] The operating platform 2 is made of ∠50×50×5 angle steel. One side of the angle steel is welded to the bracket 1, and the other side is chiseled with 6 slots according to the size of the toothed plate steel bar using an angle grinder, which serve as the limiting slots for the welding platform of the toothed plate steel bar semi-finished product.
[0025] The storage platform 3 is formed by welding three ∠50×50×5 angle steels onto the support 1, and its size is adjusted according to the size of the toothed plate steel bars.
[0026] The tool rack 6 is equipped with a platform for placing the welding gun rack 11 and the welding rod cylinder 7.
[0027] The operating platform 2, the storage platform 3, and the tool rack 6 are connected and fixed to the support 1 by welding. The movable platform 4 moves and is fixed within the movable slot 10 of the support 1 by the fixing device 8.
[0028] The fixing device 8 consists of a handle 801, a bolt rod 802, a limiting piece 803, and a pad 804; one end of the bolt rod 802 is connected to the handle 801, and the other end is connected to the pad 804; the limiting piece 803 is fixed on the bolt rod 802; the pad 804 is provided with threads; the bolt rod 802 is connected to the moving platform 4.
[0029] The mobile platform 4 is made of ∠50×50×5 angle steel. A set of bolt holes are symmetrically provided at both ends of the angle steel close to the support 1. The bolt rod 802 passes through the bolt hole and the moving groove 10 of the mobile platform 4 and is rotatably connected to the thread in the pad plate 804.
[0030] Bolt rod 802 is rotatably connected to the bolt hole of the moving platform 4; bolt rod 802 is slidably connected to the moving groove 10.
[0031] In this invention, the handle 801 and the bolt rod 802 are fixedly connected by welding. The limiting piece 803 is welded and fixed to the bolt rod 802. The washer 804 has threads and acts as a nut. When the handle 801 rotates, the washer 804 is limited by the bracket 1 and does not rotate accordingly. Therefore, when the handle 801 rotates, the washer 804 moves axially along the bolt rod 802. The distance between the limiting piece 803 and the washer 804 is adjusted by the handle 801, thus limiting the relative displacement between the bracket 1 and the moving platform 4. The fixing device 8 is positioned by a scale 9.
[0032] In use, a processing platform is fabricated according to the dimensions of the toothed plate reinforcement. After fabrication, holes are drilled in the hardened ground of the plant corresponding to the reserved holes 5. Expansion bolts are used to connect and fix the platform to the ground through the reserved holes 5. Then, the fabricated semi-finished stirrups are placed in sections according to their model on the storage platform 3. The operator places the semi-finished stirrups on the storage platform 3 into the limiting grooves of the operating platform 2 in sequence according to their model. After adjusting the height of the moving platform 4 according to the stirrup dimensions and the scale 9, it is fixed by the fixing device 8 to support the bottom of the stirrups and stabilize them. Then, the operator completes the welding of the toothed plate reinforcement of the precast box girder.
Claims
1. A prefabricated box girder tooth plate steel bar multifunctional processing rack, characterized in that: The frame includes a support (1), an operating platform (2) fixed on the top of the support (1), and a storage platform (3); the bottom of the support (1) is provided with a reserved hole (5); a set of moving slots (10) are symmetrically provided on one side of the support (1) on the same side as the operating platform (2), and the moving platform (4) is connected to the moving slot (10) by a fixing device (8); a scale (9) is provided on the side of the moving slot (10); a tool rack (6) is provided on one side of the support (1) adjacent to the operating platform (2); the operating platform (2) is provided with a slot.
2. The prefabricated box girder tooth plate steel bar multifunctional processing rack according to claim 1, characterized in that: The bracket (1) is welded from ∠50×50×5 angle steel.
3. The multi-functional processing rack for precast box beam tooth plate steel bars of claim 1, wherein: The operating platform (2) is made of ∠50×50×5 angle steel. One side of the angle steel is welded to the bracket (1), and the other side is chiseled with 6 slots according to the size of the toothed plate steel bar using an angle grinder.
4. The multi-functional processing stand for precast box girder toothed plate reinforcement as described in claim 1, characterized in that: The storage platform (3) is formed by welding three ∠50×50×5 angle steels onto the bracket (1).
5. The multi-functional processing stand for precast box girder toothed plate reinforcement as described in claim 1, characterized in that: The tool rack (6) is provided with a platform for placing the welding gun rack (11) and the welding rod cylinder (7).
6. The multi-functional processing stand for precast box girder toothed plate reinforcement as described in claim 1, characterized in that: The fixing device (8) consists of a handle (801), a bolt rod (802), a limiting piece (803), and a pad (804); one end of the bolt rod (802) is connected to the handle (801), and the other end is connected to the pad (804); the limiting piece (803) is fixed on the bolt rod (802); the pad (804) is provided with threads; the bolt rod (802) is connected to the moving platform (4).
7. The multi-functional processing stand for precast box girder toothed plate reinforcement as described in claim 6, characterized in that: The mobile platform (4) is made of ∠50×50×5 angle steel. A set of bolt holes are symmetrically provided at both ends of the angle steel close to the support (1). The bolt rod (802) passes through the bolt hole and the moving groove (10) of the mobile platform (4) and is rotatably connected to the thread in the pad (804).
8. The multi-functional processing stand for precast box girder toothed plate reinforcement as described in claim 7, characterized in that: The bolt rod (802) is rotatably connected to the bolt hole of the moving platform (4); the bolt rod (802) is slidably connected to the moving groove (10).