Intelligent wrench for aerospace assembly
Patent Information
- Application Number
- CN202521609366.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-30
- Publication Date
- 2026-08-21
- Estimated Expiration
- 2035-07-30
AI Technical Summary
在面对结构复杂、空间受限的作业环境时,难以精准施力或触及目标螺栓,导致作业效率低下,甚至可能因施力角度或空间不足而无法完成操作,影响装配进度与质量
[0015] 1. By setting an adjustable adjustment rod and fixing components, the length of the wrench can be flexibly adjusted according to the working space, and after adjustment, it can be reliably locked by tightening the knob, effectively preventing loosening or torque deviation caused by length changes during force application, improving the stability of operation and assembly accuracy, and is particularly suitable for aerospace assembly environments with complex structures or confined spaces.
Smart Images

Figure CN224659294U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of mechanical processing technology, and specifically relates to an intelligent wrench for aerospace assembly. Background Technology
[0002] Currently, in high-precision work environments such as aerospace assembly, the tightening of bolts and screws is a crucial step in ensuring structural connection strength, overall stability, and assembly quality. Traditional wrenches are widely used in such operations and, while they can generally complete the tightening task, still have many shortcomings in practical applications, especially in areas with confined spaces or complex assembly positions.
[0003] First, traditional wrenches typically have a fixed length and lack flexible adjustment capabilities. In complex work environments with limited space, it is difficult to apply force accurately or reach the target bolt, resulting in low work efficiency. In some cases, the operation may not be completed due to insufficient angle of force application or insufficient space, affecting assembly progress and quality.
[0004] Secondly, regarding wrench length adjustment, some existing adjustable wrenches suffer from unstable adjustment structures and poor locking performance. During use, if the position of the adjusting rod cannot be reliably fixed, it may slip or misalign when force is applied, resulting in inaccurate torque output, affecting bolt preload control, and consequently impacting connection reliability and safety.
[0005] Furthermore, most traditional wrenches lack torque detection and recording capabilities, making it impossible to acquire and record actual torque data during operation in real time. In the aerospace field, where strict assembly quality requirements exist, the lack of torque data monitoring and traceability can cause inconvenience for quality tracking and subsequent maintenance.
[0006] Therefore, there is an urgent need for an intelligent wrench with an adjustable structure, reliable locking, torque detection and recording functions, and the ability to operate efficiently in confined spaces, in order to meet the high-precision requirements of applications such as aerospace assembly. Utility Model Content
[0007] Based on the above problems, the purpose of this utility model is to provide an intelligent wrench for aerospace assembly.
[0008] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0009] A smart wrench for aerospace assembly includes a handle (1) and an adjusting rod (4). One end of the adjusting rod (4) is threaded to one end of the handle (1), and the other end of the adjusting rod (4) is fixedly connected to a wrench head (10). The lower end of the wrench head (10) is provided with a square head for installing a socket, and the upper end of the wrench head (10) is provided with a torque sensor (14). The handle (1) is provided with a data recording module (15) electrically connected to the torque sensor (14). A fixing mechanism for the position of the adjusting rod (4) is provided between the handle (1) and the adjusting rod (4). The fixing assembly includes two mounting plates (8) mounted on the handle rod (1), each mounting plate (8) is provided with a telescopic rod (7), and a fixing plate (5) is fixedly connected between the telescopic ends of the two telescopic rods (7). The fixing plate (5) is provided with a fastening knob (6) for locking the position of the adjusting rod (4). The outer side of the adjusting rod (4) is provided with a plurality of insertion holes (11) that cooperate with the fastening knob (6). The side wall of the adjusting rod (4) is provided with a slide rail (12), and the telescopic end of the telescopic rod (7) is provided with a slider (9) that slides with the slide rail (12).
[0010] As a preferred embodiment, the other end of the handle (1) is provided with an anti-slip sleeve (2).
[0011] As a preferred embodiment, the torque sensor (14) is coaxially arranged with the square head.
[0012] As a preferred embodiment, the slider (9) includes a semi-circular plate and an arc plate, the arc plate and the slide rail (12) both having a T-shaped cross-section, and the arc plate is located inside the slide rail (12).
[0013] As a preferred embodiment, the fastening knob (6) includes an upper knob cap and a lower screw. The lower end of the screw is unthreaded. The fixing plate (5) is a semi-arc plate with a threaded hole (13) on its upper surface that mates with the screw.
[0014] The beneficial effects of this utility model are as follows:
[0015] 1. By setting an adjustable adjustment rod and fixing components, the length of the wrench can be flexibly adjusted according to the working space, and after adjustment, it can be reliably locked by tightening the knob, effectively preventing loosening or torque deviation caused by length changes during force application, improving the stability of operation and assembly accuracy, and is particularly suitable for aerospace assembly environments with complex structures or confined spaces.
[0016] 2. The wrench has a compact overall design. The tightening knob adopts a knob cap structure, which makes it easy to quickly tighten or unlock the adjustment lever with one hand. Combined with the anti-slip sleeve on the outside of the handle, it improves the grip and comfort during use, so that it can be operated smoothly in confined spaces or irregular postures, which significantly improves work efficiency and safety.
[0017] 3. By integrating a torque sensor into the wrench head and setting a data recording module at the handle, the torque value during bolt tightening can be detected and automatically recorded in real time. The tightening quantity can also be statistically managed, which helps in the digital monitoring and data traceability of the assembly process and provides data support for subsequent quality analysis, defect tracking and maintenance.
[0018] This utility model optimizes structural stability, ease of operation, and intelligent functions, effectively solving the technical problem that existing wrenches cannot meet the high-precision and high-reliability tightening operations in the aerospace field. It has good practicality and promotion value. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the aerospace assembly intelligent wrench structure of this utility model;
[0020] Figure 2 This is a schematic diagram of the intelligent wrench adjustment rod structure for aerospace assembly according to this utility model;
[0021] Figure 3 This is a schematic diagram of the aerospace assembly intelligent wrench fixing component of this utility model;
[0022] Figure 4 This utility model provides an intelligent wrench for aerospace applications. Figure 1 Enlarged diagram.
[0023] Among them, 1 is the handle rod, 2 is the anti-slip sleeve, 3 is the threaded part, 4 is the adjusting rod, 5 is the fixing plate, 6 is the fastening knob, 7 is the telescopic rod, 8 is the mounting plate, 9 is the slider, 10 is the wrench head, 11 is the insertion hole, 12 is the slide rail, 13 is the threaded hole, 14 is the torque sensor, and 15 is the data recording module. Detailed Implementation
[0024] The present invention will now be described in further detail with reference to the accompanying drawings.
[0025] Example 1:
[0026] like Figures 1-4As shown, an aerospace assembly smart wrench includes a handle (1) and an adjusting rod (4). One end of the adjusting rod (4) is threaded to one end of the handle (1), and the other end of the adjusting rod (4) is fixedly connected to a wrench head (10). The lower end of the wrench head (10) is provided with a square head for installing a socket, and the upper end of the wrench head (10) is provided with a torque sensor (14). The handle (1) is provided with a data recording module (15) electrically connected to the torque sensor (14). The user presets the required torque value through the controller, and the applied torque value and the number of bolts / screws are automatically recorded during the tightening process. After the operation is completed, the user only needs to connect the wrench to the data cable to import the data into the computer for subsequent analysis and processing. A fixing device is provided between the handle (1) and the adjusting rod (4) for fixing... A fixing assembly for fixing the position of the adjusting rod (4) includes two mounting plates (8) mounted on the handle rod (1), each mounting plate (8) having a telescopic rod (7), and a fixing plate (5) fixedly connected between the telescopic ends of the two telescopic rods (7). The fixing plate (5) has a fastening knob (6) for locking the position of the adjusting rod (4). The outer side of the adjusting rod (4) has multiple insertion holes (11) that cooperate with the fastening knob (6). The side wall of the adjusting rod (4) has a slide rail (12), and the telescopic end of the telescopic rod (7) has a slider (9) that slides with the slide rail (12). The design of the fixing assembly not only makes it easy for users to quickly lock and unlock the adjusting rod (4), but also ensures that the wrench remains stable when operating in a confined space and will not be accidentally loosened or changed in length due to external force.
[0027] The other end of the handle (1) is provided with an anti-slip sleeve (2).
[0028] The torque sensor (14) is coaxially arranged with the square head.
[0029] The slider (9) includes a semi-circular plate and an arc plate. The arc plate and the slide rail (12) both have a T-shaped cross-section, and the arc plate is located inside the slide rail (12).
[0030] The fastening knob (6) includes an upper knob cap and a lower screw. The lower end of the screw is unthreaded. The design of the fastening knob (6) allows the user to easily lock the adjusting rod (4) in the required position. At the same time, the design of its knob cap facilitates one-handed operation and improves work efficiency. The fixing plate (5) is a semi-arc plate, and its upper end surface is provided with a threaded hole (13) that cooperates with the screw.
[0031] Example 2:
[0032] like Figures 1-4As shown, first, confirm the size of the bolt or nut to be operated, and select a suitable socket to install on the square head below the wrench head (10). Depending on the workspace or the position of the bolt / nut, rotate the adjusting rod (4) relative to the handle rod (1) to adjust the overall length of the wrench. When the adjusting rod (4) reaches the desired position, use the fixing assembly to lock it. Rotate the tightening knob (6) so that its lower screw is inserted into any of the insertion holes (11) on the side wall of the adjusting rod (4), and continue to rotate until the threaded part of the screw is screwed into the threaded hole (13) of the fixing plate (5). Ensure that the tightening knob (6) is tightened to achieve a stable lock of the adjusting rod (4). Hold the anti-slip sleeve (2) and align the wrench head (10) and socket with the bolt / nut to be tightened or loosened. Apply appropriate force and tighten or loosen the bolt / nut by rotating the handle rod (1).
[0033] The above embodiments of this utility model are merely illustrative examples and are not intended to limit the implementation of this utility model. Those skilled in the art can make other variations and modifications based on the above description. It is impossible to exhaustively list all possible implementations here. All obvious variations or modifications derived from the technical solutions of this utility model are still within the protection scope of this utility model.
Claims
1. A smart wrench for aerospace assembly, characterized in that: The device includes a handle (1) and an adjusting rod (4). One end of the adjusting rod (4) is threaded to one end of the handle (1), and the other end of the adjusting rod (4) is fixedly connected to a wrench head (10). The lower end of the wrench head (10) is provided with a square head for installing a socket, and the upper end of the wrench head (10) is provided with a torque sensor (14). The handle (1) is provided with a data recording module (15) electrically connected to the torque sensor (14). A fixing component for fixing the position of the adjusting rod (4) is provided between the handle (1) and the adjusting rod (4). The fixing assembly includes two mounting plates (8) mounted on the handle rod (1), each mounting plate (8) is provided with a telescopic rod (7), and a fixing plate (5) is fixedly connected between the telescopic ends of the two telescopic rods (7). The fixing plate (5) is provided with a fastening knob (6) for locking the position of the adjusting rod (4). The outer side of the adjusting rod (4) is provided with a plurality of insertion holes (11) that cooperate with the fastening knob (6). The side wall of the adjusting rod (4) is provided with a slide rail (12), and the telescopic end of the telescopic rod (7) is provided with a slider (9) that slides with the slide rail (12).
2. The aerospace assembly intelligent wrench according to claim 1, characterized in that: The other end of the handle (1) is provided with an anti-slip sleeve (2).
3. The aerospace assembly intelligent wrench according to claim 1, characterized in that: The torque sensor (14) is coaxially arranged with the square head.
4. The aerospace assembly intelligent wrench according to claim 1, characterized in that: The slider (9) includes a semi-circular plate and an arc plate. The arc plate and the slide rail (12) both have a T-shaped cross-section, and the arc plate is located inside the slide rail (12).
5. The aerospace assembly intelligent wrench according to claim 1, characterized in that: The fastening knob (6) includes an upper knob cap and a lower screw. The lower end of the screw is unthreaded. The fixing plate (5) is a semi-arc plate with a threaded hole (13) on its upper surface that mates with the screw.