Steel grating gantry welding device
By adding a limiting mechanism to the gantry welding device, the steel grating is clamped and positioned using the limiting block, thus solving the positional deviation problem caused by the three-axis moving mechanism and achieving accurate and rapid welding of the steel grating.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HEBEI GANHE STEEL GRATING MACHINERY CO LTD
- Filing Date
- 2025-08-14
- Publication Date
- 2026-07-14
AI Technical Summary
In existing gantry welding equipment, the three-axis moving mechanism causes the steel grating to deviate in position, affecting the welding quality.
A limiting mechanism is added to clamp and position the steel grating through limiting blocks, ensuring the accurate movement of the welding gun.
This enabled accurate and rapid welding of steel gratings, improving welding quality.
Smart Images
Figure CN224488179U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of steel grating manufacturing technology, specifically relating to a steel grating gantry welding device. Background Technology
[0002] Steel grating consists of horizontal and vertical partitions and a frame. In the manufacturing process, the horizontal and vertical partitions are usually spliced together to form a mesh, and then the splicing points are welded. Finally, steel plates are used to wrap around the partitions and weld them to form a frame.
[0003] The above welding process mostly uses manual welding, but manual welding is inefficient. To improve welding efficiency, a gantry welding device is currently used to weld steel gratings. The welding gun is suspended on the gantry by a three-axis moving mechanism. By pre-setting a program for the three-axis moving mechanism, the welding gun is driven to move quickly to the welding point of the steel grating and perform welding. However, since the three-axis moving mechanism can only move according to the preset program, the position of the steel grating often deviates, resulting in welding position deviation and affecting the welding quality of the steel grating. Utility Model Content
[0004] To address the problems existing in the prior art, this utility model provides a steel grating gantry welding device, which adds a limiting mechanism to clamp and position the steel grating through the limiting block, thereby achieving accurate and rapid positioning of the steel grating at the welding point with the welding gun.
[0005] The specific technical solution adopted in this utility model is as follows:
[0006] A steel grating gantry welding device includes a gantry frame, a welding gun, and a worktable located below the gantry frame. The welding gun is connected to the top of the gantry frame via a three-axis moving mechanism and is suspended above the worktable via the three-axis moving mechanism, having degrees of freedom to move along the x, y, and z axes of the worktable. A limiting mechanism is also provided on the surface of the worktable. The limiting mechanism is symmetrically arranged on both sides of the worktable and includes a limiting block and a sliding groove matching the limiting block. The limiting block has a degree of freedom to move along the sliding groove via the sliding groove. At least two sets of limiting blocks are provided, and the distance between adjacent limiting blocks is adjustable via the sliding groove. The steel grating is fixed by the limiting blocks on both sides.
[0007] The chute has a dovetail groove structure, and the bottom of the limiting block has a dovetail-shaped structure that matches the dovetail groove structure. The upper surface of the limiting block is provided with a U-shaped fixing groove, which matches the partition of the steel grating. The steel grating is placed above the limiting block and is fixed to the limiting block by clamping the partition with the fixing groove.
[0008] Multiple sets of the limiting blocks are arranged at equal intervals along the slide groove. The limiting mechanism also includes a comb plate and a sliding device. One end of the comb plate has the freedom to move back and forth along the x-axis direction with the help of the sliding device. The other end of the comb plate has a comb-shaped structure. The limiting blocks are clamped and fixed by the teeth of the comb plate. The distance between the limiting blocks is adjusted and fixed by the comb plate.
[0009] The slide grooves are arranged in multiple sets at equal intervals along the y-direction, and the distance between the limit blocks on both sides of the worktable is adjusted by means of the slide grooves.
[0010] The sliding device includes a U-shaped ring and a slip ring that fits into the U-shaped ring. The U-shaped ring is fixed to the worktable by means of fixing bolts and suspended above the worktable. The bottom of the groove of the U-shaped ring faces the x-axis direction. The slip ring is perpendicular to and fixedly connected to the fixed end of the comb plate. The slip ring has the freedom to move along the U-shaped ring. The comb plate has the freedom to move and flip along the horizontal direction of the U-shaped ring by means of the slip ring.
[0011] The slip ring has a downward-protruding fixing buckle at the top of its inner ring, and the U-shaped ring has a groove at the bottom of its inner ring that matches the fixing buckle. The grooves are arranged in multiple sets with their openings facing upwards and at equal intervals. The slip ring is fixed in position by means of the cooperation between the fixing buckle and the groove.
[0012] The U-shaped ring is provided with multiple sets of comb plates, and the height of the slip ring corresponding to each set of comb plates is arranged in an arithmetic progression.
[0013] The beneficial effects of this utility model are:
[0014] This invention incorporates a limiting mechanism that clamps and positions the steel grating using limiting blocks. The number of limiting blocks in each side groove is the same as the number of longitudinal partitions in the grating. During use, the limiting blocks are arranged at equal intervals, with one limiting block corresponding to each longitudinal partition. The steel grating is then fixed using the limiting blocks. Finally, the three-axis moving mechanism is preset according to the position of the steel grating. After welding and removing the previous steel grating, the position of the limiting block remains unchanged, and then the next steel grating is fixed to the limiting block. This ensures that the steel grating always matches the preset welding point of the three-axis moving mechanism, achieving accurate and rapid positioning of the steel grating with the welding point of the welding gun. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the structure of this utility model;
[0016] Figure 2 This is a side view of the limiting mechanism.
[0017] Figure 3 This is a top view of the limiting mechanism.
[0018] Figure 4 for Figure 1 An enlarged schematic diagram of part A in the middle;
[0019] In the attached diagram, 1 is the gantry frame, 2 is the welding gun, 3 is the worktable, 4 is the three-axis moving mechanism, 5 is the limit block, 6 is the slide, 7 is the fixing groove, 8 is the comb plate, 9 is the U-shaped ring, 10 is the slip ring, 11 is the fixing bolt, 12 is the fixing buckle, and 13 is the slot. Detailed Implementation
[0020] The present invention will be further described below with reference to the accompanying drawings and specific embodiments:
[0021] The three-axis moving mechanism 4 in this utility model is obtained by splicing an x-slide, a y-slide, and a z-slide. The top two sides of the gantry frame 1 are provided with first slide rails. The x-slide slides along the x-direction with the help of the first slide rails on the top of the gantry frame 1. The x-slide slides along the y-direction with the help of the second slide rails. The side wall of the y-slide slides along the z-direction with the help of the third slide rails.
[0022] Specific embodiments, such as Figure 1-4 As shown, this utility model provides a steel grating gantry welding device, including a gantry frame 1, a welding gun 2, and a worktable 3 located below the gantry frame 1. The welding gun 2 is connected to the top of the gantry frame 1 via a three-axis moving mechanism 4. The welding gun 2 is suspended above the worktable 3 via the three-axis moving mechanism 4 and has the freedom to move along the x, y, and z axes of the worktable 3. A limiting mechanism is also provided on the surface of the worktable 3. The limiting mechanism is symmetrically arranged on both sides of the worktable 3. The limiting mechanism includes a limiting block 5 and a sliding groove 6 that matches the limiting block 5. The limiting block 5 has the freedom to move along the sliding groove 6 via the sliding groove 6. At least two sets of limiting blocks 5 are provided. The distance between adjacent limiting blocks 5 is adjustable via the sliding groove 6. The steel grating is fixed by the limiting blocks 5 on both sides.
[0023] Currently, a gantry frame 1 welding device is used to weld steel gratings. The welding gun 2 is suspended on the gantry frame 1 by a three-axis moving mechanism 4. By pre-setting a program for the three-axis moving mechanism 4, the welding gun 2 is driven to move quickly to the welding point of the steel grating and perform welding. However, since the three-axis moving mechanism 4 can only move according to the preset program, the position of the steel grating often deviates, resulting in welding position deviation and affecting the welding quality of the steel grating.
[0024] Therefore, a limiting mechanism is added to this utility model. The steel grating is clamped and positioned by the limiting blocks 5. The number of limiting blocks 5 in each side groove 6 is the same as the number of longitudinal partitions of the grating. When in use, the limiting blocks 5 are arranged at equal intervals, and each longitudinal partition corresponds to one limiting block 5. The steel grating is fixed with the help of the limiting blocks 5. Finally, the three-axis moving mechanism 4 is preset according to the position of the steel grating. After the previous steel grating is welded and removed, the position of the limiting block 5 remains unchanged. Then the next steel grating is fixed with the limiting block 5, which can ensure that the steel grating always matches the preset welding point of the three-axis moving mechanism 4, so as to achieve accurate and fast positioning of the steel grating with the welding point of the welding gun 2.
[0025] like Figure 1 As shown, the slide 6 has a dovetail groove structure, and the bottom of the limiting block 5 has a dovetail-shaped structure that matches the dovetail groove structure. A U-shaped fixing groove 7 is provided on the upper surface of the limiting block 5. The fixing groove 7 matches the partition of the steel grating. The steel grating is placed above the limiting block 5, and the fixing groove 7 clamps and fixes the partition to the limiting block 5. The fixing groove 7 can clamp and fix the partition of the steel grating, and at the same time support the steel grating away from the workbench 3, preventing the steel grating from being accidentally welded to the workbench 3 during welding.
[0026] like Figure 2 As shown, multiple sets of limiting blocks 5 are arranged at equal intervals along the slide groove 6. The limiting mechanism also includes a comb plate 8 and a sliding device. One end of the comb plate 8 has the freedom to reciprocate along the x-axis direction with the help of the sliding device. The other end of the comb plate 8 has a comb-shaped structure. The limiting blocks 5 are clamped and fixed by the teeth of the comb plate 8. The distance between the limiting blocks 5 is adjusted and fixed by the comb plate 8. In order to ensure that the position of the limiting blocks 5 is fixed, the present invention also adds a comb plate 8. The comb teeth of the comb plate 8 are arranged at equal intervals. The number of teeth between adjacent limiting blocks 5 can be arbitrarily selected according to actual needs. In addition, in the traditional limiting mechanism, the displacement distance of the clamp cannot be accurately determined during the adjustment process. Each adjustment of the clamp requires re-measurement. However, in the present invention, since the width of the teeth and the comb teeth are constant, and the limiting blocks 5 are clamped by the comb teeth, the welding points of the three-axis moving mechanism 4 can be preset using the comb teeth as a coordinate system to avoid the welding points of the three-axis moving mechanism 4 from being offset.
[0027] like Figure 1 and Figure 3 As shown, multiple sets of slide grooves 6 are equally spaced along the y-direction. The distance between the limiting blocks 5 on both sides of the worktable 3 is adjusted by means of the slide grooves 6. Since the size of the steel grating is different, multiple sets of slide grooves 6 are set. When positioning the limiting blocks 5, the slide groove 6 that matches the size of the steel grating is selected. The width between the limiting blocks 5 can be adjusted arbitrarily, and then the movement program of the three-axis moving mechanism 4 can be modified accordingly.
[0028] like Figure 1-3 As shown, the sliding device includes a U-shaped ring 9 and a sliding ring 10 sleeved with the U-shaped ring 9. The U-shaped ring 9 is fixed to the worktable 3 by means of a fixing bolt 11 and suspended above the worktable 3. The bottom of the groove of the U-shaped ring 9 faces the x-axis direction. The sliding ring 10 is perpendicular to and fixedly connected to the fixed end of the comb plate 8. The sliding ring 10 has the freedom to move along the U-shaped ring 9. The comb plate 8 has the freedom to move and flip along the horizontal direction of the U-shaped ring 9 by means of the sliding ring 10. When the comb plate 8 needs to be used, the sliding ring 10 is slid to move the comb plate 8 horizontally and clamp the limiting block 5. When the comb plate 8 does not need to be used, the comb plate 8 can be moved away from the limiting block 5, or the comb plate 8 can continue to slide along the U-shaped ring 9 and flip. At this time, the comb teeth of the comb plate 8 face away from the limiting block 5, thereby avoiding the comb plate 8 from obstructing the adjustment or disassembly of the limiting block 5.
[0029] like Figure 4 As shown, the inner ring of the slip ring 10 has a downward-protruding fixing buckle 12 at the top, and the inner ring of the U-shaped ring 9 has a groove 13 that matches the fixing buckle 12 at the bottom. The groove 13 has an upward opening and multiple sets are equally spaced. The slip ring 10 is fixed in position by means of the cooperation between the fixing buckle 12 and the groove 13. In order to prevent the limiting block 5 from moving horizontally when the comb plate 8 clamps the limiting block 5, causing the limiting block 5 to disengage from the tooth gap, the present invention also provides a fixing buckle 12 and a groove 13. When the comb plate 8 needs to be moved, the slip ring 10 is slightly lifted. At this time, the fixing buckle 12 disengages from the groove 13, and the slip ring 10 can slide normally along the U-shaped ring 9. When the comb plate 8 finds a suitable position, the slip ring 10 is released. At this time, the fixing buckle 12 is inserted into the groove 13 and fixed in position, thereby preventing the comb plate 8 from moving horizontally.
[0030] like Figure 1-2 As shown, the U-shaped ring 9 is provided with multiple sets of comb plates 8, and the height of the slip rings 10 corresponding to each set of comb plates 8 is arranged in an arithmetic progression. Since the size of the steel grating is different, the required height of the limiting block 5 is also different. Therefore, the U-shaped ring 9 is provided with multiple sets of comb plates 8 of different heights to match the limiting blocks 5 of different heights. When a comb plate 8 of a certain height is needed, the comb plate 8 in front of it can be slid along the U-shaped ring 9 and flipped to the top of the U-shaped ring 9 for later use.
Claims
1. A steel grating gantry welding device, comprising a gantry frame (1), a welding gun (2), and a worktable (3) located below the gantry frame (1), wherein the welding gun (2) is connected to the top of the gantry frame (1) via a three-axis moving mechanism (4), and the welding gun (2) is suspended above the worktable (3) via the three-axis moving mechanism (4) and has degrees of freedom to move along the x, y, and z axes of the worktable, characterized in that, The workbench (3) is further provided with a limiting mechanism. The limiting mechanism is symmetrically arranged on both sides of the workbench (3). The limiting mechanism includes a limiting block (5) and a sliding groove (6) that matches the limiting block (5). The limiting block (5) has the freedom to move along the sliding groove (6) by means of the sliding groove (6). There are at least two sets of limiting blocks (5). The distance between adjacent limiting blocks (5) is adjustable by means of the sliding groove (6). The steel grating is fixed by means of the limiting blocks (5) on both sides.
2. The steel grating gantry welding device according to claim 1, characterized in that, The chute (6) has a dovetail groove structure, and the bottom of the limiting block (5) has a dovetail-shaped structure that matches the dovetail groove structure. The upper surface of the limiting block (5) is provided with a U-shaped fixing groove (7). The fixing groove (7) matches the partition of the steel grating. The steel grating is placed above the limiting block (5) and the fixing groove (7) clamps the partition and fixes the limiting block (5).
3. The steel grating gantry welding device according to claim 1, characterized in that, Multiple sets of the limiting blocks (5) are arranged at equal intervals along the slide groove (6). The limiting mechanism also includes a comb plate (8) and a sliding device. One end of the comb plate (8) has the freedom to move back and forth along the x-axis direction with the help of the sliding device. The other end of the comb plate (8) has a comb-shaped structure. The limiting blocks (5) are clamped and fixed by the teeth of the comb plate (8). The distance between the limiting blocks (5) is adjusted and fixed by the comb plate (8).
4. The steel grating gantry welding device according to claim 1, characterized in that, The slide (6) is provided with multiple sets of equal intervals along the y direction, and the distance between the limit blocks (5) on both sides of the worktable (3) is adjusted by means of the slide (6).
5. A steel grating gantry welding device according to claim 3, characterized in that, The sliding device includes a U-shaped ring (9) and a slip ring (10) sleeved with the U-shaped ring (9). The U-shaped ring (9) is fixed to the worktable (3) by means of a fixing bolt (11) and suspended above the worktable (3). The bottom of the groove of the U-shaped ring (9) faces the x-axis direction. The slip ring (10) is perpendicular to and fixedly connected to the fixed end of the comb plate (8). The slip ring (10) has the freedom to move along the U-shaped ring (9). The comb plate (8) has the freedom to move and flip along the horizontal direction of the U-shaped ring (9) by means of the slip ring (10).
6. The steel grating gantry welding device according to claim 5, characterized in that, The inner ring (10) has a downward protruding fixing buckle (12) at the top, and the inner ring (9) has a groove (13) matching the fixing buckle (12) at the bottom. The groove (13) is open upward and has multiple sets at equal intervals. The slip ring (10) is fixed in position by means of the cooperation between the fixing buckle (12) and the groove (13).
7. A steel grating gantry welding device according to claim 5, characterized in that, The U-shaped ring (9) is provided with multiple sets of comb plates (8), and the heights of the slip rings (10) corresponding to each set of comb plates (8) are arranged in equal arithmetic order.