Stair stringer and tread welding positioning tool

Abstract

The utility model provides a kind of stair beam and step plate welding positioning tool, comprising: welding platform;Positioning structure is set on the welding platform, for positioning to stair beam and step plate;Clamping mechanism is set on the welding platform, for the stair beam and step plate are pressed tightly fixed. By the above-mentioned mode, one-key type pressing and loosening of stair beam and step plate are realized, so that clamping is firm and reliable, and finally concentrated welding is carried out, effectively improving the welding efficiency and welding precision of stair.

Description

Technical Field

[0001] This utility model relates to the field of building component processing technology, and in particular to a welding and positioning fixture for stair beams and treads. Background Technology

[0002] In the production of prefabricated container houses, outdoor staircases are typically constructed using welded steel structures. Currently, the common practice for welding outdoor staircases is to first use simple positioning blocks to initially fix the stair beams at both ends, then manually mark the welding positions of the treads and other connecting parts before proceeding with the welding. This traditional method has significant drawbacks: First, because each step requires manual measurement and marking, the entire preparation process is time-consuming and inefficient; second, manual operation inevitably introduces errors, and the positioning errors of multiple treads accumulate, resulting in poor dimensional accuracy and consistency in the final welded staircase, affecting product quality and on-site installation. Utility Model Content

[0003] To address the aforementioned problems, this utility model proposes a welding positioning fixture for stair beams and treads that enables rapid and precise positioning.

[0004] The main components of this utility model include: a welding platform; A positioning structure, set on the welding platform, is used to position the stair beams and treads; A clamping mechanism, disposed on the welding platform, is used to press and fix the stair beam and the tread. The positioning structure includes: A shaft end positioning assembly is used to position the two ends of the stair beam along the axial direction. It includes a top positioning unit and a bottom positioning unit arranged opposite to each other along a first direction. The top positioning unit is used to position the top connecting plate at the top of the stair beam, and the bottom positioning unit is used to position the bottom connecting plate at the bottom of the stair beam. The top positioning unit and the bottom positioning unit form a positioning interval for accommodating the stair beam. The lateral positioning group includes two sets of lateral positioning units symmetrically arranged along the second direction, which are used to position the stair beams on both sides respectively. The second direction is perpendicular to the first direction. The pedal positioning assembly is used to position the step plate, and includes two sets of step positioning plates symmetrically arranged along a second direction. The step positioning plates are provided with a plurality of positioning slots spaced apart along a first direction.

[0005] Preferably, the bottom positioning unit includes two bottom positioning components symmetrically arranged along a second direction, and each bottom positioning component includes a first stop and a second stop arranged adjacent to each other along a first direction; The first stop block has a first inclined wall on the side near the second stop block, and the inclination angle of the first inclined wall is adapted to the inclination angle of the bottom connecting plate. The second stop has a second inclined wall on the side near the first stop, and the inclination angle of the second inclined wall is adapted to the bottom contour of the bottom connecting plate.

[0006] Preferably, the top positioning unit includes two top blocks symmetrically arranged along the second direction, and a third inclined wall is provided on the side of the top block near the positioning interval, the inclination angle of the third inclined wall being adapted to the inclination angle of the top connecting plate.

[0007] Preferably, the positioning slot on the step positioning plate is a V-shaped opening, which is used to position the step plate in an inclined posture.

[0008] Preferably, each group of the lateral positioning units includes a plurality of side baffles arranged at intervals along a first direction for abutting against the inner sidewall of the stair beam.

[0009] Preferably, the clamping mechanism includes two sets of quick-clamp units symmetrically arranged along a second direction, each set of quick-clamp units including multiple quick clamps spaced apart along a first direction, the quick clamps being used to press the stair beam against the side baffle.

[0010] Preferably, the quick-clamp unit further includes a support member for supporting the quick-clamp, the support member being fixed to the welding platform, and the quick-clamp being mounted on the support member.

[0011] Preferably, the first direction is the length direction of the stair beam, and the second direction is the width direction of the stair beam.

[0012] The beneficial effects of this utility model are as follows: By integrating the positioning structure and clamping mechanism, the positioning structure includes a shaft end positioning group, a lateral positioning group and a tread positioning group. The operator only needs to place the stair beam and tread into the preset multiple stops and V-shaped slots to complete the precise pre-alignment. Then, by using the quick clamp as the clamping mechanism, the stair beam and tread can be clamped and released with one click, making the clamping firm and reliable. Finally, centralized welding is carried out, which effectively improves the welding efficiency and welding accuracy of the staircase. Attached Figure Description

[0013] Figure 1 This is a preferred embodiment and a three-dimensional structural diagram of the staircase; Figure 2 This is a three-dimensional structural schematic diagram of a preferred embodiment; Figure label: 1. Welding platform; 21. Top positioning unit; 211. Top stop; 22. Bottom positioning unit; 221. First stop; 222. Second stop; 23. Lateral positioning unit; 231. Side baffle; 24. Step positioning plate; 241. Positioning groove; 31. Quick-clamp unit; 311. Quick-clamp; 312. Support component; 41. Stair beam; 42. Step tread; 43. Top connecting plate; 44. Bottom connecting plate. Detailed Implementation

[0014] The technical solution protected by this utility model will be described in detail below with reference to the accompanying drawings.

[0015] like Figure 1-2 As shown, this application proposes a welding positioning fixture for stair beams and treads, which includes a welding platform 1, a positioning structure set on the welding platform 1, and a clamping mechanism. It is mainly used to accurately position and quickly clamp the stair beams 41 and treads 42 during the welding process, which can effectively improve welding efficiency and dimensional accuracy.

[0016] like Figure 1-2 As shown, the positioning structure includes an axial end positioning group, a lateral positioning group, and a tread positioning group, which are used to position the two ends of the stair beam 41 in the axial direction, the lateral position, and the treads, respectively, so as to facilitate welding.

[0017] like Figure 1-2 As shown, the shaft end positioning group includes a top positioning unit 21 and a bottom positioning unit 22 arranged opposite to each other along a first direction (i.e., the axial / length direction of the stair beam). The top positioning unit 21 and the bottom positioning unit 22 form a positioning interval, and the stair beam 41 is placed within this positioning interval.

[0018] like Figure 1-2 As shown, the bottom positioning unit 22 is located at one end of the welding platform 1 and is used to position the bottom connecting plate 44 at the bottom of the stair beam 41. This unit includes two bottom positioning components symmetrically arranged along a second direction (i.e., the width direction of the stair beam), which is perpendicular to the first direction. Each bottom positioning component includes an adjacent first stop 221 and a second stop 222, with the second stop 222 positioned on the side of the first stop 221 closest to the positioning area. The side of the first stop 221 closest to the second stop 222 has a first inclined wall, the inclination angle of which matches the inclination angle of the bottom connecting plate 44, for precise fitting of the bottom connecting plate 44. The side of the second stop 222 closest to the first stop 221 has a second inclined wall, the inclination angle of which matches the bottom contour of the bottom connecting plate 44, for supporting and positioning the bottom edge of the bottom connecting plate 44. Through the cooperation of the first and second inclined walls, the placement position of the bottom connecting plate 44 is precisely positioned, improving the welding accuracy of the finished product.

[0019] like Figure 1-2 As shown, the top positioning unit 21 is located at the other end of the welding platform 1, opposite to the bottom positioning unit 22, and is used to position the top connecting plate 43 of the stair beam 41. This unit includes two top stops 211 symmetrically arranged along a second direction. Each top stop 211 has a third inclined wall on its side near the positioning area, the inclination angle of which matches the inclination angle of the top connecting plate 43, to accurately position the top connecting plate 43 and improve the welding accuracy of the finished product.

[0020] The first, second, and third inclined walls work together to guide the stair beam 41, which is welded with the top connecting plate 43 and the bottom connecting plate 44, to ensure that it can be accurately placed within the positioning range, thus guaranteeing the accuracy and consistency of subsequent welding.

[0021] like Figure 1-2 As shown, the lateral positioning group is used to position the stair beams on both sides. It includes two sets of lateral positioning units 23 symmetrically arranged along the second direction. Each set of lateral positioning units 23 includes multiple side baffles 231 spaced apart along the first direction. The side baffles 231 are vertically fixed on the welding platform 1 and are used to abut against the inner sidewall of the stair beam 41 to limit its placement position in the width direction.

[0022] Specifically, the width between the outer walls of the two sets of side baffles 231 (the sides in contact with the stair beams) opposite each other along the second direction is equal to the width of the tread, so as to ensure that the tread can be smoothly placed between the two stair beams and that the tread and the stair beam can be precisely welded.

[0023] like Figure 1-2 As shown, the pedal positioning assembly is used to position the step plate, and it includes at least two sets of step positioning plates 24 symmetrically arranged along the second direction. The step positioning plates 24 are fixed on the welding platform 1 and are located inside the lateral positioning assembly.

[0024] Each step positioning plate 24 has multiple positioning slots 241 evenly spaced along a first direction. These positioning slots 241 are V-shaped openings, designed to allow the step plate 42 to be placed in a preset tilt position within the slot, ensuring that the welding angle between the step plate 42 and the stair beam 41 meets design requirements. The V-shaped slot design allows the step plate 42 to be naturally and stably positioned at the required tilt angle without additional adjustment, greatly simplifying the operation and improving positioning speed and accuracy.

[0025] like Figure 1-2 As shown, the clamping mechanism includes two sets of quick-clamping units 31 symmetrically arranged along the second direction, which are used to press and fix the stair beam 41 and the step plate 42 onto the welding platform 1 to prevent movement during the welding process.

[0026] Quick-clamp units 31 are correspondingly disposed on the outside of the lateral positioning group. Each quick-clamp unit 31 includes multiple quick-clamps 311 spaced apart along a first direction and a support member 312. The support member 312 is fixed on the welding platform 1 and is used to install and support the quick-clamps. The quick-clamps 311 are disposed one-to-one with the side baffles 231. The clamps of the quick-clamps 311 act on the outer side wall of the stair beam 41, forming a clamping area together with the side baffles 231. In operation, pushing the quick-clamps 311 can press the stair beam 41 tightly onto the side baffles 231, while the step plate 42 is also clamped and fixed onto the step positioning plate 24 by the stair beams 41 on both sides.

[0027] By cooperating with the quick clamp 311 and the side baffle 231, the stair beam 41 and the step plate 42 are quickly clamped and released, reducing the adjustment time of traditional clamps and improving welding efficiency; at the same time, the clamping force is evenly distributed, avoiding local deformation and ensuring welding quality.

[0028] In actual use, operators should follow these steps: 1. Place the stair beam 41, which is welded with the top connecting plate 43 and the bottom connecting plate 44, in the positioning area, so that its two ends contact the top positioning unit 21 and the bottom positioning unit 22 respectively, and the side wall is in contact with the side baffle 231.

[0029] 2. Place each step plate 42 into the positioning slot 241 of the step positioning plate 24, allowing it to tilt and position itself naturally.

[0030] 3. After confirming that all components are in the correct position, push the quick clamp 311 to press and fix the stair beam 41 and the step plate 42.

[0031] 4. After initial positioning for spot welding, release quick clamp 311 and transfer the stair component to the full welding station to complete the welding.

[0032] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A welding and positioning fixture for stair beams and treads, characterized in that, Mainly includes: Welding platform (1); A positioning structure is provided on the welding platform (1) for positioning the stair beams and treads; A clamping mechanism is provided on the welding platform (1) for pressing and fixing the stair beam and the tread. The positioning structure includes: The axial end positioning group is used to position the two ends of the stair beam in the axial direction. It includes a top positioning unit (21) and a bottom positioning unit (22) arranged opposite to each other in the first direction. The top positioning unit (21) is used to position the top connecting plate at the top of the stair beam, and the bottom positioning unit (22) is used to position the bottom connecting plate at the bottom of the stair beam. The top positioning unit (21) and the bottom positioning unit (22) form a positioning interval for accommodating the stair beam. The lateral positioning group includes two sets of lateral positioning units (23) symmetrically arranged along the second direction, which are used to position the stair beams on both sides respectively. The second direction is perpendicular to the first direction. The pedal positioning group is used to position the step plate, including two sets of step positioning plates (24) symmetrically arranged along the second direction. The step positioning plates (24) are provided with a plurality of positioning slots (241) spaced apart along the first direction.

2. The welding positioning fixture for stair beams and treads according to claim 1, characterized in that, The bottom positioning unit (22) includes two bottom positioning components symmetrically arranged along the second direction. Each bottom positioning component includes a first stop (221) and a second stop (222) arranged adjacent to each other along the first direction. The first stop (221) has a first inclined wall on the side near the second stop (222), and the inclination angle of the first inclined wall is adapted to the inclination angle of the bottom connecting plate; The second stop (222) has a second inclined wall on the side near the first stop (221), and the inclination angle of the second inclined wall is adapted to the bottom end profile of the bottom connecting plate.

3. The welding positioning fixture for stair beams and treads according to claim 1, characterized in that, The top positioning unit (21) includes two top blocks (211) symmetrically arranged along the second direction. The top block (211) has a third inclined wall on the side near the positioning interval. The inclination angle of the third inclined wall is adapted to the inclination angle of the top connecting plate.

4. The welding positioning fixture for stair beams and treads according to claim 1, characterized in that, The positioning slot (241) on the step positioning plate (24) is a V-shaped opening, which is used to position the step plate in an inclined posture.

5. The welding positioning fixture for stair beams and treads according to claim 1, characterized in that, Each of the lateral positioning units (23) includes a plurality of side baffles (231) arranged at intervals along a first direction for abutting against the inner wall of the stair beam.

6. The welding positioning fixture for stair beams and treads according to claim 5, characterized in that, The clamping mechanism includes two sets of quick clamp units (31) symmetrically arranged along the second direction. Each set of quick clamp units (31) includes multiple quick clamps (311) spaced apart along the first direction. The quick clamps (311) are used to press the stair beam onto the side baffle (231).

7. The welding positioning fixture for stair beams and treads according to claim 6, characterized in that, The quick clamp unit (31) further includes a support member (312) for supporting the quick clamp (311), the support member (312) being fixed on the welding platform (1), and the quick clamp (311) being mounted on the support member (312).

8. The welding positioning fixture for stair beams and treads according to claim 1, characterized in that, The first direction is the length direction of the stair beam, and the second direction is the width direction of the stair beam.

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