A full-position welding tool for hydraulic support bridge

By designing a hydraulic support bridge-crossing all-position welding fixture and using a positioner to achieve multi-angle rotation, the problem that welding robots cannot cover the bevel weld seam was solved, reducing welding difficulty and improving welding accuracy and efficiency.

CN224359632UActive Publication Date: 2026-06-16ZHENGZHOU COAL MINING MACHINERY (GRP) CO LTD +1

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHENGZHOU COAL MINING MACHINERY (GRP) CO LTD
Filing Date
2025-05-29
Publication Date
2026-06-16

AI Technical Summary

Technical Problem

During the welding process of existing hydraulic support bridge components, welding robots can only cover fillet welds and cannot weld bevel welds, which easily leads to defects such as excessive weld height and incomplete weld edges.

Method used

Design a welding fixture for all positions of hydraulic support bridges, including a connecting square plate, a T-shaped connecting plate, a support block and a holding block. A positioner enables 360° planar rotation and 180° lateral rotation to ensure that the welding robot covers all weld seams. Adjusting bolts and locking blocks can be used to adapt to hydraulic supports of different sizes.

🎯Benefits of technology

It enables multi-angle and multi-directional rotation of the hydraulic support over the bridge, reducing welding difficulty, reducing weld defects, and improving welding accuracy and efficiency.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224359632U_ABST
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Abstract

The utility model provides a kind of for hydraulic support bridge all position welding tool, detachably installed on positioner, including connecting square plate, a pair of T-shaped connecting plate, a pair of support block, several holding blocks and the connecting turntable for connecting the positioner;The connecting square plate is detachably connected with the connecting turntable, for supporting a pair of the T-shaped connecting plate;A pair of the T-shaped connecting plate is adjustably set on the connecting square plate, for installing a pair of the support block and several the holding block;A pair of the support block and several the holding block are adjustably installed on the T-shaped connecting plate, for holding hydraulic support bridge on a pair of the T-shaped connecting plate. The for hydraulic support bridge all position welding tool can be in the process of using robot welding, so that hydraulic support bridge can be multi-angle multidirectional rotation, thereby reduce the welding difficulty.
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Description

Technical Field

[0001] This utility model relates to the field of welding fixtures for hydraulic supports, specifically, it relates to a welding fixture for all positions of hydraulic supports crossing bridges. Background Technology

[0002] During robotic welding, the welding torch should be pointed at an angle that is evenly bisected. However, due to structural limitations, existing hydraulic support bridge components can only cover the fillet weld area during welding, while the bevel weld cannot be welded due to the robot's torch posture. Furthermore, when welding bevel welds, defects such as excessive weld excess and incomplete edge coverage are prone to occur.

[0003] Utility model patent CN218051045U discloses a clamping structure for a welding device. The clamping structure is positioned between two circumferential rotating devices, with each end fixedly connected to one of the rotating devices. The clamping structure can rotate with the rotating devices. A welding robot is positioned on the outside of the clamping structure and can weld hydraulic supports clamped on it. The clamping structure includes a transverse clamping device and a longitudinal clamping device. The transverse clamping device is used to position and clamp the hydraulic support in the width direction, and the longitudinal clamping device is used to position and clamp the hydraulic support in the length direction. Two transverse clamping devices are provided, positioned on both sides of the hydraulic support. Under the action of a linkage structure, the two transverse clamping devices can synchronously move closer or further apart. This clamping structure of the welding device provides welding without dead angles and eliminates the need for secondary clamping, improving processing accuracy, providing space for loading and unloading hydraulic supports, and increasing production efficiency. However, this clamping structure cannot achieve multi-angle and multi-directional rotation. Utility Model Content

[0004] In order to reduce the welding difficulty by enabling the hydraulic support bridge to rotate in multiple angles and directions during the robotic welding process, the technical solution adopted by this utility model is: a welding fixture for all positions of the hydraulic support bridge, which can be detachably installed on the positioner, including a connecting square plate, a pair of T-shaped connecting plates, a pair of support blocks, several holding blocks, and a connecting turntable for connecting the positioner.

[0005] The connecting square plate is detachably connected to the connecting turntable and is used to support a pair of T-shaped connecting plates;

[0006] A pair of T-shaped connecting plates are adjustablely disposed on the connecting square plate for mounting a pair of support blocks and a plurality of holding blocks;

[0007] A pair of support blocks and a plurality of holding blocks are adjustablely mounted on the T-shaped connecting plate for holding the hydraulic support bridge on the pair of T-shaped connecting plates.

[0008] Based on the above, in order to facilitate gripping and fixing from four directions (up, down, left, and right), the T-shaped connecting plate includes a straight handle and a side handle. The side handle is perpendicular to the straight handle, and a pair of T-shaped connecting plates are symmetrically arranged with the side handles facing outwards.

[0009] Based on the above, in order to facilitate the adjustment of the installation position of the T-shaped connecting plate and make the tooling applicable to hydraulic support bridges of different sizes, a pair of sliding grooves are provided on the connecting plate. A pad and a locking block for connecting the T-shaped connecting plate are adjustablely arranged in the sliding grooves. The pad and the locking block are connected to the T-shaped connecting plate by fasteners.

[0010] Based on the above, the upper and lower sides of the connecting square plate are provided with U-shaped grooves, and bolts for connecting the connecting turntable are provided in the U-shaped grooves.

[0011] Based on the above, in order to facilitate disassembly and assembly, the width of the connecting square plate is smaller than the width of the hydraulic support bridge, and the length of the connecting square plate is smaller than the length of the hydraulic support bridge.

[0012] Based on the above, the diameter of the connecting turntable is greater than the width of the connecting square plate.

[0013] Based on the above, the end of the side handle extends out of the side of the hydraulic support bridge.

[0014] Based on the above, the upper and lower ends of the straight handle are respectively extended from the upper and lower sides of the hydraulic support bridge.

[0015] This utility model has substantial features and advancements compared to existing technologies. Specifically, it provides a welding fixture for all positions of a hydraulic support bridge. Based on the shape of the hydraulic support bridge, it designs a connecting square plate, a pair of T-shaped connecting plates, and multiple holding blocks and support blocks mounted on the T-shaped connecting plates. The holding blocks and support blocks stably clamp the hydraulic support bridge onto the pair of T-shaped connecting plates. Bolts are used to mount the connecting square plate and connecting turntable onto a positioner. The positioner allows for 360° rotation in a planar position and ±180° rotation in a lateral position. This enables multi-angle and multi-directional rotation of the hydraulic support bridge during robotic welding, ensuring the welding robot's gun posture is always optimal and allowing the welding robot to cover all weld seams of the hydraulic support bridge. Furthermore, the lateral rotation allows for planar welding of the bevel, reducing welding difficulty and weld defects.

[0016] Furthermore, by opening multiple threaded holes on the T-shaped connecting plate, the installation position of the holding block can be changed. By opening a sliding groove on the connecting square plate, the T-shaped connecting plate can be slidably connected in the sliding groove by the locking block, thereby realizing the function of clamping hydraulic supports of different sizes on a set of tooling. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the back structure of a welding fixture for all positions of a hydraulic support bridge provided by this utility model.

[0018] Figure 2 This utility model provides a front structural diagram of a welding fixture for all positions of a hydraulic support bridge.

[0019] Figure 3 This utility model provides a schematic diagram of a T-shaped connecting plate structure used in a full-position welding fixture for hydraulic support bridges.

[0020] Figure 4 This utility model provides a schematic diagram of a connecting square plate structure used in a full-position welding fixture for hydraulic support bridges.

[0021] In the diagram: 1. Connecting turntable; 2. Hydraulic support bridge; 3. T-shaped connecting plate; 4. Connecting square plate; 5. Locking block; 6. First gripping block; 7. Support block; 8. Slide groove; 9. Pad block; 10. Second gripping block; 11. Straight handle; 12. First threaded hole; 13. Side handle; 14. Second threaded hole; 15. U-shaped groove. Detailed Implementation

[0022] The technical solution of this utility model will be further described in detail below through specific embodiments.

[0023] Example 1

[0024] This embodiment provides a welding fixture for all positions of a hydraulic support bridge, such as... Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the component is detachably mounted on the positioner and includes a connecting square plate 4, a pair of T-shaped connecting plates 3, a pair of support blocks 7, several gripping blocks, and a connecting turntable 1 for connecting the positioner. Depending on the installation position, the gripping blocks can be divided into a pair of first gripping blocks 6 and a pair of second gripping blocks 10.

[0025] The connecting square plate 4 is detachably connected to the connecting turntable 1 and is used to support a pair of T-shaped connecting plates 3. The pair of T-shaped connecting plates 3 are adjustablely mounted on the connecting square plate 4 and are used to install a pair of support blocks 7 and several holding blocks. The pair of support blocks 7 and several holding blocks are adjustablely mounted on the T-shaped connecting plates 3 and are used to hold the hydraulic support bridge 2 onto the pair of T-shaped connecting plates 3.

[0026] Specifically, such as Figure 3 As shown, to facilitate gripping and fixing from four directions (up, down, left, and right), the T-shaped connecting plate 3 includes a straight handle portion 11 and a side handle portion 13. The side handle portion 13 is arranged perpendicularly to the straight handle portion 11, and a pair of T-shaped connecting plates 3 are symmetrically arranged with the side handle portions 13 facing outwards. The straight handle portion 11 and the side handle portion 13 are each provided with a plurality of first threaded holes 12. Four second threaded holes 14 for connecting locking blocks are provided at the junction of the straight handle portion and the side handle portion.

[0027] To facilitate adjustment of the installation position of the T-shaped connecting plate and enable the fixture to be used with hydraulic support bridges of different sizes, a pair of sliding grooves 8 are provided on the connecting square plate 4. A pad 9 and a locking block 5 for connecting the T-shaped connecting plate 3 are adjustablely installed within the sliding grooves 8. The pad 9 and the locking block 5 are connected to the T-shaped connecting plate 3 by fasteners.

[0028] Example 2

[0029] This embodiment provides a welding fixture for all positions of a hydraulic support bridge. The main difference from Embodiment 1 is that in this embodiment, the upper and lower sides of the connecting square plate 4 are provided with U-shaped grooves 15, and bolts for connecting the connecting turntable are provided in the U-shaped grooves 15.

[0030] Example 3

[0031] This embodiment provides a welding fixture for all positions of a hydraulic support bridge. The main difference from Embodiment 1 is that, in this embodiment, for ease of disassembly and assembly, the width of the connecting square plate 4 is smaller than the width of the hydraulic support bridge 2, and the length of the connecting square plate 4 is smaller than the length of the hydraulic support bridge 2. The diameter of the connecting turntable 1 is larger than the width of the connecting square plate 4.

[0032] Example 4

[0033] This embodiment provides a welding fixture for all positions of a hydraulic support bridge. The main difference from Embodiment 1 is that, in this embodiment, the end of the side handle 13 extends out of the side of the hydraulic support bridge 2. The upper and lower ends of the straight handle 11 extend out of the upper and lower sides of the hydraulic support bridge 2, respectively.

[0034] In order to improve the gripping force, the gripping block is also provided with a tightening screw for tightening the edge of the hydraulic support bridge.

[0035] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and not to limit it; although the utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications can still be made to the specific implementation of this utility model or equivalent substitutions can be made to some technical features without departing from the spirit of the technical solution of this utility model, and all such modifications and substitutions should be covered within the scope of the technical solution claimed by this utility model.

Claims

1. A welding fixture for all positions of a hydraulic support bridge, detachably mounted on a positioner, characterized in that: It includes a connecting square plate, a pair of T-shaped connecting plates, a pair of support blocks, several holding blocks, and a connecting turntable for connecting the positioner; The connecting square plate is detachably connected to the connecting turntable and is used to support a pair of T-shaped connecting plates; A pair of T-shaped connecting plates are adjustablely disposed on the connecting square plate for mounting a pair of support blocks and a plurality of holding blocks; A pair of support blocks and a plurality of holding blocks are adjustablely mounted on the T-shaped connecting plate for holding the hydraulic support bridge on the pair of T-shaped connecting plates.

2. The all-position welding fixture for hydraulic support bridges according to claim 1, characterized in that: The T-shaped connecting plate includes a straight handle and a side handle, the side handle being perpendicular to the straight handle, and a pair of T-shaped connecting plates being symmetrically arranged with the side handles facing outwards.

3. The all-position welding fixture for hydraulic support bridges according to claim 1, characterized in that: The connecting plate has a pair of sliding grooves, and a pad and a locking block for connecting the T-shaped connecting plate are adjustablely arranged in the sliding grooves. The pad and the locking block are connected to the T-shaped connecting plate by fasteners.

4. A welding fixture for all positions of a hydraulic support bridge according to claim 1, 2, or 3, characterized in that: The upper and lower sides of the connecting square plate are provided with U-shaped grooves, and bolts for connecting the connecting turntable are provided in the U-shaped grooves.

5. The all-position welding fixture for hydraulic support bridges according to claim 1, characterized in that: The width of the connecting square plate is less than the width of the hydraulic support bridge, and the length of the connecting square plate is less than the length of the hydraulic support bridge.

6. A welding fixture for all-position welding of hydraulic support bridges according to claim 1, 2, 3, or 5, characterized in that: The diameter of the connecting turntable is greater than the width of the connecting square plate.

7. The all-position welding fixture for hydraulic support bridges according to claim 2, characterized in that: The end of the side handle extends out of the side of the hydraulic support bridge.

8. A welding fixture for all positions of a hydraulic support bridge according to claim 2 or 7, characterized in that: The upper and lower ends of the straight handle extend out of the upper and lower sides of the hydraulic support bridge, respectively.