A high-altitude operation platform guardrail assembly welding tool
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JINDA HEAVY IND (TIANJIN) CO LTD
- Filing Date
- 2025-04-30
- Publication Date
- 2026-05-29
AI Technical Summary
The existing welding of guardrails for aerial work platforms suffers from problems such as difficulty in ensuring welding precision, low production efficiency, and insufficient versatility.
The design employs a welding fixture that includes a base plate, transverse and longitudinal slides, combined with a channel steel frame, pneumatic grippers, and height-adjustable positioning seats to achieve precise positioning and efficient clamping of the guardrail.
It improves welding precision, increases production efficiency, and can adapt to the welding needs of various specifications of guardrails, while reducing preparation and disassembly time.
Smart Images

Figure CN224295061U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of aerial work platforms, and in particular to a welding fixture for assembling guardrails of aerial work platforms. Background Technology
[0002] The guardrails of aerial work platforms are crucial components for ensuring the safety of workers, and their welding quality directly affects the safety and reliability of the entire platform. However, existing guardrail welding processes have several problems:
[0003] Welding precision is difficult to guarantee: Traditional welding methods rely heavily on manual operation. During the welding process, the positioning of guardrail components is not precise enough, which can easily lead to welding deformation and dimensional deviation, affecting the overall structural strength and stability of the guardrail.
[0004] Low production efficiency: Manual welding requires frequent adjustments to the position of parts and requires multiple people to work together, which is time-consuming and labor-intensive, making it difficult to meet the needs of large-scale production.
[0005] Insufficient versatility: Some existing welding fixtures are often only applicable to specific models of guardrails and cannot meet the welding needs of guardrails of various specifications, resulting in increased production costs. Summary of the Invention
[0006] This utility model aims to address the shortcomings of existing technologies by providing a welding fixture for guardrail assembly on aerial work platforms.
[0007] To achieve the above objectives, the present invention adopts the following technical solution: a welding fixture for a guardrail of an aerial work platform, comprising a base plate, the top of which is provided with several transverse and longitudinal sliding grooves, and a channel steel frame is slidably mounted on the transverse and longitudinal sliding grooves respectively. A fixing mechanism is provided between the channel steel frame and the base plate. A pneumatic gripper is installed on one side of the top of the channel steel frame, and a height-adjustable positioning seat is detachably installed on the other side. The horizontal and vertical railings of the guardrail are placed in the positioning seat and clamped and fixed by the pneumatic gripper.
[0008] In particular, the inner walls of the channel steel frame are reinforced with reinforcing plates on both sides.
[0009] Specifically, the fixing mechanism includes a locking bolt threaded onto the lower side plate of the channel steel frame, a threaded hole corresponding to the locking bolt on the top of the base plate, the locking bolt being screwed into the threaded hole, and an anti-slip handwheel on the outside of the nut of the locking bolt.
[0010] In particular, the pneumatic gripper has a rubber anti-slip block at the end of the inner wall of the gripper, and an arc-shaped groove is provided on the inner side of the rubber anti-slip block.
[0011] Specifically, the positioning seat is U-shaped, with an adjusting rod rotatably connected to the bottom, and a threaded sleeve is fixedly fitted on the top of the upper side plate of the channel steel frame, with the adjusting rod threadedly connected inside the threaded sleeve.
[0012] The beneficial effects of this utility model are:
[0013] Improving welding precision: By setting transverse and longitudinal sliding grooves on the base plate, and in conjunction with a channel steel frame, pneumatic grippers, and height-adjustable positioning seats, the horizontal and vertical railings of the guardrail can be precisely positioned. The high-precision clamping capability of the pneumatic grippers ensures the stability of the railings during welding, avoiding positioning deviations caused by manual operation.
[0014] Improved production efficiency: There is no need to frequently adjust the position of components during welding. It is only necessary to pre-adjust the position of the channel steel frame and positioning seat according to the specifications of the guardrail. Moreover, the pneumatic gripper has the characteristics of fast response and high usage frequency, which can quickly clamp and release the guardrail, greatly shortening the preparation time before welding and the disassembly time after welding.
[0015] Adaptable to various specifications: The channel steel frame can slide on the transverse and longitudinal slides, and the height of the positioning seat is adjustable and easy to replace. This design allows the tooling to adapt to guardrails of different sizes and models, and can meet the welding needs of guardrails of various specifications without the need to change the tooling for each model of guardrail. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the structure of this utility model;
[0017] Figure 2 This is a schematic diagram showing the connection between the pneumatic gripper, positioning seat, and channel steel frame of this utility model.
[0018] Figure 3 This is a schematic diagram of the rubber anti-slip block structure of this utility model;
[0019] In the diagram: 1-Base plate; 2-Transverse slide rail; 3-Longitudinal slide rail; 4-Steel channel frame; 5-Pneumatic gripper; 6-Positioning seat; 7-Reinforcing plate; 8-Locking bolt; 9-Rubber anti-slip block; 10-Arc groove; 11-Adjusting rod; 12-Threaded sleeve; 13-Anti-slip handwheel;
[0020] The following will describe in detail the embodiments of this utility model with reference to the accompanying drawings. Detailed Implementation
[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments:
[0022] like Figures 1-3As shown, a welding fixture for guardrails of an aerial work platform includes a base plate 1. The top of the base plate 1 has several transverse grooves 2 and longitudinal grooves 3. Channel steel frames 4 are slidably mounted on the transverse grooves 2 and longitudinal grooves 3 respectively. Reinforcing plates 7 are provided on both sides of the inner wall of the channel steel frames 4. A fixing mechanism is provided between the channel steel frames 4 and the base plate 1. The fixing mechanism includes locking bolts 8 threadedly connected to the lower side plate of the channel steel frames 4. The top of the base plate 1 has threaded holes corresponding to the locking bolts 8. The locking bolts 8 are screwed into the threaded holes. An anti-slip handwheel 13 is provided on the outside of the nut of the locking bolts 8. The transverse grooves 2, longitudinal grooves 3, and threaded holes are set according to the specifications of the guardrail to be welded, facilitating the welding of guardrails of various specifications on a single fixture.
[0023] A pneumatic gripper 5 is installed on one side of the top of the channel steel frame 4. The inner wall end of the pneumatic gripper 5 is provided with a rubber anti-slip block 9. The inner side of the rubber anti-slip block 9 is provided with an arc groove 10. A height-adjustable positioning seat 6 is detachably installed on the other side. The positioning seat 6 is U-shaped and has an adjusting rod 11 rotatably connected to the bottom. A threaded sleeve 12 is fitted and fixed on the top of the upper side plate of the channel steel frame 4. The adjusting rod 11 is threadedly connected to the threaded sleeve 12. The horizontal and vertical railings of the guardrail are placed in the positioning seat 6 and clamped and fixed by the pneumatic gripper 5.
[0024] The channel steel frame 4 can slide on the transverse slide 2 and the longitudinal slide 3. The height of the positioning seat 6 is adjustable and easy to replace. This design allows the tooling to adapt to guardrails of different sizes and models, meeting the welding needs of various guardrail specifications without the need to change the tooling for each guardrail model. During welding, frequent adjustments to component positions are not required; the positions of the channel steel frame 4 and the positioning seat 6 only need to be pre-adjusted according to the guardrail specifications. Furthermore, the pneumatic gripper 6 features rapid response and high usage frequency, enabling quick clamping and release of the guardrail, significantly shortening preparation time before welding and disassembly time after welding.
[0025] In operation, this invention adjusts the position of the channel steel frame 4 according to the specifications of the guardrail to be welded, and tightens the locking bolt 8 into the threaded hole by rotating the anti-slip handwheel 13. The appropriate positioning seat 6 is rotated and adjusted to the appropriate height according to the specifications of the guardrail. Then, the longitudinal and transverse guardrails are placed in the positioning seat 6 and clamped and fixed by the pneumatic gripper 5. The joints of the longitudinal and transverse guardrails are then welded. Since there are no obstructions below the welding area, all joints can be welded directly without flipping them. After welding, the pneumatic gripper 5 is released, and the guardrail can be removed. This invention, by setting transverse sliding grooves 2 and longitudinal sliding grooves 3 on the base plate 1, and in conjunction with the channel steel frame 4, pneumatic gripper 5, and height-adjustable positioning seat 6, can accurately position the horizontal and vertical guardrails. The high-precision clamping capability of the pneumatic gripper 5 ensures the stability of the guardrail during welding, avoiding positioning deviations caused by manual operation.
[0026] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0027] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0028] The present invention has been described above with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any improvements made using the inventive concept and technical solution of the present invention, or direct application to other situations without modification, are all within the protection scope of the present invention.
Claims
1. A welding fixture for the guardrail of an aerial work platform, comprising a base plate (1), characterized in that, The top of the base plate (1) is provided with several transverse sliding grooves (2) and longitudinal sliding grooves (3). Channel steel frames (4) are slidably provided on the transverse sliding grooves (2) and longitudinal sliding grooves (3). A fixing mechanism is provided between the channel steel frame (4) and the base plate (1). A pneumatic gripper (5) is installed on one side of the top of the channel steel frame (4), and a height-adjustable positioning seat (6) is detachably installed on the other side. The horizontal and vertical railings of the guardrail are placed in the positioning seat (6) and clamped and fixed by the pneumatic gripper (5).
2. The welding fixture for the guardrail assembly of an aerial work platform according to claim 1, characterized in that, The inner walls of the channel steel frame (4) are reinforced with reinforcing plates (7) on both sides.
3. The welding fixture for the guardrail assembly of an aerial work platform according to claim 1, characterized in that, The fixing mechanism includes a locking bolt (8) threadedly connected to the lower side plate of the channel steel frame (4). The top of the base plate (1) is provided with a threaded hole corresponding to the locking bolt (8). The locking bolt (8) is screwed into the threaded hole. The outer side of the nut of the locking bolt (8) is provided with an anti-slip handwheel (13).
4. The welding fixture for the guardrail assembly of an aerial work platform according to claim 1, characterized in that, The pneumatic gripper (5) has a rubber anti-slip block (9) at the end of the inner wall of the gripper, and an arc groove (10) is provided on the inner side of the rubber anti-slip block (9).
5. The welding fixture for the guardrail assembly of an aerial work platform according to claim 1, characterized in that, The positioning seat (6) is U-shaped, with an adjusting rod (11) rotatably connected to the bottom. A threaded sleeve (12) is fixedly fitted on the top of the upper side plate of the channel steel frame (4), and the adjusting rod (11) is threadedly connected inside the threaded sleeve (12).