Anti-loose mechanical connection system and construction method

Abstract

This invention provides an anti-loosening mechanical connection system and construction method. The system includes: an embedded part with a receiving cavity, a grooved rivet, a fastening clamp, an image acquisition device, and a processor. The grooved rivet is used to connect and fix the fastener to the receiving cavity of the embedded part. The fastening clamp is configured to drive the grooved rivet to rivet and lock the embedded part and the fastener. The image acquisition device is configured to acquire images. The processor is configured to: determine the actual position of the embedded part based on the image and a BIM model; determine multiple riveting points based on the actual position of the embedded part; for each riveting point: control an intelligent operating device to grab the grooved rivet and place it at the riveting point; control the fastening clamp to rivet and lock the grooved rivet. This solution can achieve dynamic and precise positioning riveting, improving connection strength.

Description

Technical Field

[0001] This invention relates to the field of construction technology, and in particular to an anti-loosening mechanical connection system and construction method. Background Technology

[0002] With the accelerated construction of infrastructure such as high-speed railways, utility tunnels, and nuclear power plants, the application of embedded parts in structural fixing is becoming increasingly widespread. However, existing embedded parts mainly rely on pre-drilled holes for positioning, which often leads to physical conflicts between anchor rods and structural steel bars, forcing the cutting of steel bars or anchor rods and severely compromising structural integrity. At the same time, traditional manual riveting is inefficient, and existing ring groove rivets have defects such as insufficient tightening force, easy slippage of the chucks, stress concentration leading to tooth damage, and difficulties in processing and inspection, making it difficult to meet the requirements of high reliability conditions.

[0003] Therefore, it is necessary to propose an anti-loosening mechanical connection system and construction method to achieve non-dynamic precise positioning riveting while improving connection strength. Summary of the Invention

[0004] This invention provides an anti-loosening mechanical connection system, comprising: an embedded part with a receiving cavity, a grooved rivet, a fastening clamp, an image acquisition device, and a processor. The grooved rivet is used to connect fasteners and fix them to the receiving cavity of the embedded part. The fastening clamp is configured to drive the grooved rivet to rivet and lock the embedded part and the fastener. The image acquisition device is configured to acquire image information. The processor is configured to: determine the actual position of the embedded part based on the image information and a BIM model; determine multiple riveting points based on the actual position of the embedded part; for each riveting point: control an intelligent operating device to grasp the grooved rivet and place it at the riveting point; and control the fastening clamp to rivet and lock the grooved rivet.

[0005] In some embodiments, the grooved rivet includes a rivet and a sleeve; the rivet includes a rivet head, a rivet shank, a locking section and a tail section arranged sequentially along a first direction, the tail section including a groove and a tail tooth section, the groove being a continuous smooth arc surface; the sleeve includes a flange and a connecting section arranged sequentially along the first direction, the connecting section being fitted onto the locking section; the flange and the rivet head of the sleeve are located on opposite sides of the fastener; when the sleeve is compressed, the inner wall of the connecting section deforms and is riveted and locked to the locking section.

[0006] In some embodiments, the processor is further configured to: control the annular groove rivet to pass through the mounting hole of the fastener in a first direction, compress the sleeve to move the sleeve in a direction opposite to the first direction on the locking section until the fastener abuts; control the riveting jaws of the fastening fixture to engage with the tail section, and control the jaw contouring portion and the pull groove of the fastening fixture to engage and clamp; control the fastening fixture to apply an axial force to the fastener, the sleeve presses against the fastener and the sleeve deforms to lock on the locking section; control the fastening fixture to retract, completing the riveting.

[0007] In some embodiments, the groove includes a first arc, a second arc, and a third arc arranged sequentially along a first direction, wherein the radius of the second arc is greater than the radius of the first arc, and the radius of the second arc is greater than the radius of the third arc.

[0008] In some embodiments, the locking section includes a threaded section near the tail tooth section and a toothed section away from the tail tooth section. When the sleeve is compressed and moves from the threaded section to the toothed section, the inner wall of the sleeve deforms to complete the riveting and locking.

[0009] In some embodiments, the inner wall of the sleeve is provided with an internal thread, which matches the thread segment.

[0010] In some embodiments, the rivet head has a T-shaped dovetail structure, and the angle between the side wall of the rivet head near the tail section and the first direction is 60°-90°.

[0011] In some embodiments, a spring is provided on the inner wall of the sleeve near the flange, and the spring is inclined toward the side away from the flange.

[0012] In some embodiments, the spring includes two lateral springs and a middle spring. The toothed section of the locking segment is provided with a spring groove, and the springs cooperate with the spring groove. The spring groove is a concave trapezoid. When the two lateral springs are located in the concave trapezoid, the two lateral springs are compressed.

[0013] In some embodiments, the size of the spring slot decreases along the first direction.

[0014] In some embodiments, a hot melt adhesive block is provided in the spring slot. After the ring groove rivet is riveted and locked, the sleeve is heated, and the hot melt adhesive block melts and fills the gap between the toothed section and the spring slot.

[0015] In some embodiments, an adhesive layer and a sealing film are provided in the spring slot; before the sleeve is installed, the adhesive layer is in a sealed state. When the spring is inserted into the spring slot, the spring breaks the sealing film, and the adhesive in the adhesive layer flows and spreads to the toothed section.

[0016] This invention provides a construction method for anti-loosening mechanical connections, which is processor-based and includes: determining the actual position of the embedded part based on image information and BIM model obtained by an image acquisition device; determining multiple riveting points based on the actual position of the embedded part; for each riveting point: controlling an intelligent operation device to grab the grooved rivet and place it into the riveting point in sequence; and controlling a fastening clamp to rivet and lock the grooved rivet. Attached Figure Description

[0017] The present invention will be further described by way of exemplary embodiments, which will be described in detail with reference to the accompanying drawings. These embodiments are not limiting, and in these embodiments, the same reference numerals denote the same structures, wherein:

[0018] Figure 1 This is a schematic diagram of an anti-loosening mechanical connection system according to some embodiments of this specification;

[0019] Figure 2 This is a schematic diagram of a fastener being riveted into a receiving cavity according to some embodiments of this specification;

[0020] Figure 3 This is a side view of a grooved rivet according to some embodiments of this specification;

[0021] Figure 4 This is a top view schematic diagram of the ring groove rivet shown in some embodiments of this specification;

[0022] Figure 5 This is a schematic diagram of the sleeve structure according to some embodiments of this specification;

[0023] Figure 6 This is a schematic diagram of the groove structure shown in some embodiments of this specification;

[0024] Figure 7 This is a schematic diagram showing the installation position of the spring clip according to some embodiments of this specification;

[0025] Figure 8 This is a cross-sectional structural schematic diagram of the sleeve according to some embodiments of this specification;

[0026] Figure 9 This is a schematic diagram of the spring sheet structure according to some embodiments of this specification;

[0027] Figure 10 This is a cross-sectional structural diagram of the toothed segment according to some embodiments of this specification;

[0028] Figure 11 This is an exemplary flowchart of a construction method for anti-loosening mechanical connections according to some embodiments of this specification.

[0029] Figure reference numerals: 1-Groove rivet; 11-Rivet; 111-Rivet head; 112-Rivet shank; 113-Locking section; 1131-Threaded section; 1132-Groove section; 1133-Spring groove; 114-Tail section; 1141-Groove; a-First arc; b-Second arc; c-Third arc; 1142-Tail tooth section; 12-Sleeve; 121-Flange; 122-Socket section; 123-Textured groove; 124-Spring; 1241-Side spring; 1242-Intermediate spring; 2-Embedded part; 21-Receiving cavity; 3-Fastener; 4-Fastening fixture; 5-Image acquisition device; 6-Processor. Detailed Implementation

[0030] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are merely some examples or embodiments of the present invention. For those skilled in the art, these drawings can be applied to other similar scenarios without creative effort. Unless obvious from the context or otherwise specified, the same reference numerals in the drawings represent the same structures or operations.

[0031] It should be understood that the terms “system,” “device,” “unit,” and / or “module” used herein are one way to distinguish different components, elements, parts, sections, or assemblies at different levels. However, if other terms can achieve the same purpose, they may be replaced by other expressions.

[0032] As indicated in this invention and the claims, unless the context clearly indicates otherwise, the words "a," "an," "an," and / or "the" do not specifically refer to the singular and may also include the plural. Generally speaking, the terms "comprising" and "including" only indicate the inclusion of explicitly identified steps and elements, which do not constitute an exclusive list, and the method or apparatus may also include other steps or elements.

[0033] This invention uses flowcharts to illustrate the operations performed by the system according to embodiments of the invention. It should be understood that the preceding or following operations are not necessarily performed precisely in sequence. Instead, the steps can be processed in reverse order or simultaneously. Furthermore, other operations can be added to these processes, or one or more steps can be removed from them.

[0034] Figure 1 This is a schematic diagram of an anti-loosening mechanical connection system according to some embodiments of this specification. Figure 2 This is a schematic diagram of a fastener being riveted into a receiving cavity according to some embodiments of this specification.

[0035] In some embodiments, such as Figures 1-2 As shown, the anti-loosening mechanical connection system 100 (hereinafter referred to as system 100) includes: an embedded part 2 with a receiving cavity 21, a grooved rivet 1, a fastening clamp 4, an image acquisition device 5, and a processor 6. The grooved rivet 1 is used to connect the fastener 3 and fix the fastener 3 to the receiving cavity 21 of the embedded part 2. The fastening clamp 4 is configured to drive the grooved rivet to rivet and lock the embedded part and the fastener. The image acquisition device 5 is configured to acquire image information. The processor 6 is configured to: determine the actual position of the embedded part 2 based on the image information and the BIM model; determine multiple riveting points based on the actual position of the embedded part 2; for each riveting point: control the intelligent operation equipment to grab the grooved rivet 1 and place it into the riveting point; control the fastening clamp 4 to rivet and lock the grooved rivet 1.

[0036] The grooved rivet 1 is used to fix the fastener 3 to the embedded part 2.

[0037] In some embodiments, the number of grooved rivets 1 can be one or more. In some embodiments, there is a one-to-one correspondence between the grooved rivets 1 and the fasteners 3. In some embodiments, multiple grooved rivets 1 can be used to fix a single fastener 3.

[0038] In some embodiments, the grooved rivet 1 further includes a rivet 11 and a sleeve 12. For more information on the grooved rivet 1, see [link to relevant documentation]. Figures 2-4 And related descriptions.

[0039] Fastener 3 refers to the workpiece that needs to be riveted by the grooved rivet 1 to achieve a fastening effect. For example, fastener 3 can be a cable bracket, contact wire support, pipe hanger, curtain wall bracket, or other workpieces that need to be fastened.

[0040] Embedded part 2 is a structural component used to rivet fastener 3. Embedded part 2 supports and carries the annular groove rivet 1 and fastener 3. For example, embedded part 2 can be channel steel, T-shaped steel, C-shaped steel, etc. Receiving cavity 21 is a cavity opened inside embedded part 2. Receiving cavity 21 is used to receive and fix annular groove rivet 1.

[0041] In some embodiments, the embedded part 2 can be disposed inside the concrete of a predetermined construction scenario. For example, the embedded part 2 is embedded in a tunnel. Another example is in a utility tunnel project, where the embedded part 2 is pre-fixed to other utility tunnels. In some embodiments, before concrete pouring and vibration, the embedded part 2 is filled with polyethylene foam strips, groove adhesive, or EV foam tape to prevent concrete penetration.

[0042] In some embodiments, the embedded part 2 and the fastener 3 are provided with openings, and the annular groove rivet 1 passes through the openings of the embedded part 2 and the fastener 3.

[0043] The fastening clamp 4 is used to perform riveting operations. The fastening clamp 4 may include a drive mechanism, jaws, an anvil, etc. The drive mechanism can be an electric, pneumatic, or hydraulic drive. The jaws are used to clamp and deform the grooved rivet 1. The jaws include a contouring part, the shape of which can be designed according to the shape of the grooved rivet 1 or the embedded part 2. For example, the contouring part can be an arc-shaped or irregularly shaped structure that matches the edge of the embedded part 2 or the contour of the fastener 3. The anvil is used to press the sleeve 12.

[0044] In some embodiments, the fastener 3 can be locked to the grooved rivet 1 and the embedded part 2 by the grooved rivet 1 and the fastening clamp 4, thereby achieving the riveting and locking of the fastener 3. Before riveting, the fastener 3 can be clamped by the workpiece clamping device so that the fastener 3 abuts against the opening of the embedded part 2 to prevent displacement during the riveting process.

[0045] The image acquisition device 5 may include at least one of LiDAR, industrial camera, depth camera, laser scanner, etc.

[0046] Image information refers to image information containing embedded part 2. Image information includes point cloud data. Point cloud data is a collection of discrete points with three-dimensional coordinates and reflection intensity information. Point cloud data includes the three-dimensional coordinates of multiple sampling points of embedded part 2. Sampling points can be randomly selected.

[0047] The processor 6 is configured to process data related to the system 100. In some embodiments, the processor 6 communicates with the image acquisition device 5 and the fastening fixture 4.

[0048] In some embodiments, processor 6 may include one or more combinations of microcontrollers (MCUs), embedded processors, graphics processing units (GPUs), etc.

[0049] In some embodiments, the processor can acquire point cloud data through the image acquisition device 5.

[0050] Building Information Modeling (BIM) is an integrated digital model that contains relevant information about the entire lifecycle of a building project, from design and construction to operation and maintenance. A BIM model includes at least the geometric model and location of embedded parts (2) constructed based on the design drawings. The location can be represented by the three-dimensional coordinates of multiple points.

[0051] In some embodiments, the processor can obtain BIM model files from local storage devices (e.g., hard drives, memory) or user terminals. For example, BIM model files can be pre-imported into local storage devices or uploaded to user terminals by users. User terminals can be personal computers, mobile phones, tablets, etc. BIM models can be constructed based on design drawings using 3D modeling software.

[0052] The actual position of the embedded part 2 refers to its actual position in three-dimensional space. The actual position of the embedded part 2 can be represented by its edge line, central axis, surface normal vector, etc., or by the three-dimensional coordinates of multiple sampling points of the embedded part 2.

[0053] In some embodiments, the processor 6 can determine the actual location of the embedded part 2 using a point cloud data processing algorithm. For example, the processor 6 can register the point cloud data and the BIM model to a unified coordinate system based on a point cloud registration algorithm; perform feature extraction and segmentation on the registered point cloud data to obtain segmented point cloud data; perform geometric reconstruction on the segmented point cloud data to determine the embedded part 2; and match and fuse the geometric model of the embedded part 2 with the BIM model to determine the actual location of the embedded part 2.

[0054] Point cloud registration algorithms can be ICP (Iterative Closest Point), NDT (Normal Distributions Transform), or feature-based registration algorithms.

[0055] In some embodiments, the processor performs feature extraction and segmentation on the registered point cloud data, including: identifying and extracting the contour surface where the embedded part 2 is located from the registered point cloud data using a surface extraction algorithm (such as URRANSAC (Random Sample Consensus algorithm); and identifying the edge line, center line, or surface normal vector of the embedded part in the point cloud as the actual position of the embedded part 2 using deep learning (such as PointNet, PointCNN) or traditional machine learning.

[0056] The riveting point refers to the riveting position of the grooved rivet 1. For example, the riveting point can be represented by the three-dimensional coordinates of the center point of the cross-section of the grooved rivet 1 on the surface of the embedded part 2.

[0057] In some embodiments, the processor 6 can determine multiple riveting points based on the actual location of the embedded part 2 using a preset algorithm. For example, the processor 6 can obtain the riveting strength requirement; determine the target number of riveting points (e.g., minimize the number of riveting points) while meeting the strength requirement; and generate a set of riveting points based on an optimization algorithm. The riveting strength requirement includes rivet spacing, edge distance, etc. The riveting strength requirement can be obtained through a user terminal. The optimization algorithm includes heuristic algorithms (such as genetic algorithms, simulated annealing), mathematical programming algorithms (linear programming, integer programming), etc.

[0058] In some embodiments, the processor may also determine multiple riveting points using other suitable methods.

[0059] In some embodiments, the processor 6 can also obtain the embedded part error through a total station and correct the BIM model based on the embedded part error.

[0060] A total station is a high-precision measuring instrument used to measure the errors of embedded parts. A total station can be used to measure three-dimensional coordinates. It also includes angle measurement systems and distance measurement systems (EDM).

[0061] For more information on BIM models, please see [link / reference]. Figures 1-2 Related content.

[0062] Embedded part error refers to the deviation between the actual position of embedded part 2 on the construction site and the ideal position in the BIM model or design drawings.

[0063] In some embodiments, the processor 6 can control the total station to detect the actual three-dimensional coordinates of key points of the embedded part 2 in real time, compare the actual three-dimensional coordinates of the key points with the three-dimensional coordinates of the key points in the BIM model, and use the vector difference of the three-dimensional coordinates of each key point as the embedded part error; and adjust the three-dimensional coordinates of the key points in the BIM model based on the embedded part error. Key points may include corner points, endpoints, turning points, etc.

[0064] In some embodiments, the processor 6 can control the total station to measure the positional and angular deviations between the actual center axis of the embedded part 2 and the center axis of the embedded part 2 in the BIM model as embedded part errors; and adjust the position of the embedded part 2 in the BIM model based on the embedded part errors so that the center axis of the embedded part 2 coincides with the actual center axis.

[0065] In some embodiments, by using a total station to measure and correct the BIM model, construction space deviations can be eliminated, achieving a high degree of synchronization between design and site conditions. This allows for precise installation of subsequent supports and pipework based on real coordinates, effectively avoiding interference and significantly improving construction efficiency and assembly accuracy.

[0066] The intelligent work device is a functional component used to grasp the ring groove rivet 1 and move it to the riveting point. In some embodiments, the intelligent work device is communicatively connected to the processor 6. The intelligent work device can be a robotic arm, etc.

[0067] In some embodiments, the intelligent operating equipment can pick up one or more annular groove rivets and place them at the riveting point based on the target path.

[0068] In some embodiments, the processor 6 can plan multiple candidate paths based on the three-dimensional coordinates of the riveting point and the actual position of the embedded part, using a path planning algorithm (such as an improved RRT algorithm); and select the shortest candidate path as the target path.

[0069] In some embodiments, through dynamic positioning and algorithm analysis, automatic obstacle avoidance and high-precision placement of riveting points can be achieved. Combined with automated and intelligent operating equipment, this greatly improves construction efficiency and standardization, ensuring that the fastener 3 is firmly and reliably connected.

[0070] Figure 3 This is a side view of a grooved rivet according to some embodiments of this specification. Figure 4This is a top view of the ring groove rivet according to some embodiments of this specification. Figure 5 This is a schematic diagram of the sleeve structure according to some embodiments of this specification.

[0071] In some embodiments, such as Figures 2-5 As shown, the annular groove rivet 1 includes a rivet 11 and a sleeve 12. The rivet 11 includes a rivet head 111, a rivet shank 112, a locking section 113, and a tail section 114 arranged sequentially along a first direction. The tail section 114 includes a groove 1141 and a tail tooth section 1142. The groove 1141 is a continuous and smooth arc surface. The sleeve 12 includes a flange 121 and a connecting section 122 arranged sequentially along the first direction. The connecting section 122 is fitted onto the locking section 113. The flange 121 and the rivet head 111 of the sleeve 12 are located on both sides of the fastener 3, respectively. When the sleeve 12 is compressed, the inner wall of the connecting section 122 deforms and is riveted and locked to the locking section 113.

[0072] The rivet 11 is used to engage with the sleeve 12 to achieve a fastening connection. In some embodiments, the rivet 11 is made of metal.

[0073] When the annular groove rivet 1 is being riveted, the first direction is perpendicular to the surface of the embedded part 2 and away from the embedded part 2. When not being riveted, the first direction is the direction of the central axis of the annular groove rivet 1.

[0074] Some embodiments in this specification use "front" and "back" to describe direction; "front" and "back" are relative concepts. For example, as shown... Figure 2 As shown, "front" indicates the direction opposite to the first direction, and "back" indicates the first direction.

[0075] The rivet head 111 is used to engage with the embedded part 2, forming a fixing surface after riveting to withstand axial loads and prevent the rivet 11 from being pulled out of the fastener 3. The rivet head 111 and the sleeve 12 together clamp the fastener, locking and fixing the fastener 3 and the embedded part 2.

[0076] In some embodiments, such as Figures 2-4 As shown, the rivet head 111 has a T-shaped dovetail structure, and the angle between the side wall of the rivet head 111 near the tail section 114 and the first direction ranges from 60° to 90°.

[0077] In some embodiments, the rivet head 111 has a T-shaped structure. For example... Figures 3-4As shown, along a projection plane perpendicular to the first direction, the rivet head 111 has a long side L1 and a short side L2. In some embodiments, the opening of the embedded part 2 is elongated, and the opening of the embedded part 2 includes a long side and a short side. The short side L2 of the rivet head 111 is smaller than the short side of the opening of the embedded part 2, and the long side L1 of the rivet head 111 is larger than the short side of the opening of the embedded part 2 and smaller than the long side of the opening of the embedded part 2. During riveting, the intelligent operating equipment can control the grooved rivet 1 so that the long side of the rivet head 111 is parallel to the long side of the opening of the embedded part 2, and place the grooved rivet 1 into the receiving cavity 21 along the opening of the embedded part 2; control the grooved rivet 1 to rotate 90° around the first direction so that the long side L2 of the rivet head 111 is parallel to the short side of the opening of the embedded part 2, thereby preventing the grooved rivet 1 from coming loose from the receiving cavity 21.

[0078] In some embodiments, such as Figure 3 As shown, the two sidewalls of the rivet head 111 near the tail section 114 are inclined cut surfaces (dovetails), and the angle between the sidewall of the rivet head 111 near the tail section 114 and the first direction is α. The value of α ranges from 60° to 90°.

[0079] In some embodiments, the inner wall of the receiving cavity 21 near the opening has an inclined section, and the inclined section of the rivet head 111 wedges with the inclined section of the inner wall of the receiving cavity 21 to form a dovetail interlock, resisting pulling and rotation.

[0080] In some embodiments, the included angle α can be set to 60°~70°, and the inclination of the sidewall of the rivet head 111 is relatively large, so that it can form a stronger wedging effect and barb effect with the inner wall of the receiving cavity 21 during riveting.

[0081] In some embodiments, the included angle α can be set to 80°~90°, and the sidewall of the rivet head 111 is perpendicular or nearly perpendicular to the rivet axial direction (first direction), forming a structure closer to a traditional T-shaped head. This configuration offers greater manufacturing convenience while still providing good shearing and pull-out resistance through its overall T-shaped dovetail structure.

[0082] In some embodiments of this specification, by designing the rivet head as a T-shaped dovetail structure, the mechanical interlocking capability between the rivet and the connected parts is significantly enhanced, effectively resisting axial pull-out force and torsional force. Combined with the rivet head sidewall's angle with the axial direction controlled between 60° and 90°, high pull-out resistance is ensured while also taking into account the ease of manufacturing and installation of the rivet.

[0083] The rivet shank 112 is used to connect the rivet head 111 and the locking section 113 and to transmit stress. The cross-section of the rivet shank 112 can be circular or square. In some embodiments, the connection between the rivet head 111 and the rivet shank 112 can be designed with a rounded corner transition, thereby improving the fatigue strength of the rivet 11.

[0084] The locking section 113 is used to cooperate with the sleeve 12 to undergo plastic deformation in order to achieve locking and fixation.

[0085] In some embodiments, the surface of the locking section 113 is provided with threads or grooves.

[0086] The tail section 114 is used to provide force support for intelligent operating equipment or fastening clamps 4, etc.

[0087] In some embodiments, the rivet head 111, rivet shank 112, locking section 113 and tail section 114 may be integrally formed or obtained by machining (turning / milling, rolling, etc.).

[0088] The tail section 114 includes a groove 1141 and a tail tooth section 1142 connected along a first direction.

[0089] The groove 1141 is used to provide a support position or gripping point for the fastening clamp 4 during the riveting process. The groove 1141 can be a portion of the tail section 114 with an annular groove or cutout.

[0090] In some embodiments, the surface of the groove 1141 is a continuous, smooth, concave arc surface.

[0091] In some embodiments, the groove 1141 may match the appearance of the claws in the fastening clamp 4 to avoid the problem of slippage and instability of the fastening clamp 4.

[0092] The tail tooth section 1142 is used to increase the friction between the fastening clamp 4 and the rivet 11, or to provide additional locking function during riveting. In some embodiments, the surface of the tail tooth section 1142 is provided with protrusions or textures, for example, the tail tooth section 1142 may be designed to be serrated, spiral, or dotted to optimize its gripping and locking effect.

[0093] The sleeve 12 is used to cover or support the rivet 11 during the riveting process, and deforms under force to achieve locking. The sleeve 12 can be made of rubber, engineering plastics, etc.

[0094] Sleeve 12 is a hollow tubular structure.

[0095] Flange 121 is used to provide a support surface during riveting, distributing stress to avoid stress concentration. In some embodiments, the diameter of flange 121 is larger than the diameter of sleeve section 122.

[0096] With the annular groove rivets installed, flange 121 is tightly attached to the outer surface of fastener 3.

[0097] In some embodiments, such as Figure 2As shown, when the rivet 11 passes through the hole of the connected part and engages with the sleeve 12, the rivet head 111 of the rivet 11 is located on the side of the fastener 3 facing the embedded part 2, and the flange 121 of the sleeve 12 is located on the side surface of the fastener 3 away from the embedded part 2.

[0098] The socket section 122 is used to undergo plastic deformation when subjected to compression and to achieve mechanical interlocking with the locking section 113 of the rivet 11.

[0099] The inner diameter of the socket section 122 is larger than the diameter of the locking section 113. The difference between the inner diameter of the socket section 122 and the diameter of the locking section 113 does not exceed the gap threshold. The gap threshold is preset by technicians based on experience. For example, the gap threshold can be 0.5 mm, etc.

[0100] In some embodiments, the front end face of the flange 121 is provided with a textured groove 123.

[0101] The textured groove 123 is used to increase the friction between the flange 121 and the fastener 3.

[0102] In some embodiments, the textured grooves include corrugated grooves, wave grooves, arc-shaped grooves, etc.

[0103] By setting textured grooves 123 on the surface of flange 121, the interlocking force and frictional resistance between the contact surfaces of flange 121 and fastener 3 are increased, thereby improving the compressive strength of flange 121 and enhancing the fastening effect.

[0104] In some embodiments, by optimizing the segmented structural design of the rivet 11 and the sleeve 12, precise fit and positioning of the rivet and sleeve before riveting are ensured. The smooth arc surface of the groove 1141 ensures precise and stable gripping by the fastening clamp 4 and reduces stress concentration. When the sleeve is compressed, the inner wall of the sleeve section deforms and is riveted and locked with the locking section, significantly improving the strength and stability of the riveted connection and effectively resisting axial and radial pull-out forces.

[0105] In some embodiments, the working principle of riveting and locking is as follows: The fastening clamp 4 applies axial tension to the rivet 11 through the groove 1141, causing the rivet head 111 and the flange 121 of the sleeve 12 to generate opposing clamping forces, thus locking the fastener 3 to the embedded part 2. At the same time, the anvil of the fastening clamp 4 compresses the sleeve section 122, causing the material of the sleeve section 122 to undergo plastic flow and forcibly embed into the locking section 113 of the rivet 11. Since the inner wall of the sleeve section 122 and the locking section 113 form a deep and irreversible mechanical interlock, the risk of loosening due to vibration in traditional threaded connections is eliminated, achieving high-strength and permanent rigid locking.

[0106] In some embodiments, the processor 6 is further configured to: control the annular groove rivet 1 to pass through the mounting hole of the fastener 3 in a first direction, compress the sleeve 12 to deform the sleeve 12 and move it in the locking section 113 in the opposite direction to the first direction until it abuts against the fastener 3; control the jaws of the fastening clamp 4 to engage with the tail section, and control the jaw contour portion of the fastening clamp 4 to mesh and clamp with the pull groove 1141; control the fastening clamp 4 to apply an axial force to the fastener 3, the sleeve 12 presses against the fastener and the sleeve 12 deforms to lock onto the locking section 113; control the fastening clamp 4 to retract, completing the riveting.

[0107] The mounting hole of the fastener 3 refers to the opening that penetrates the fastener. In some embodiments, the processor 6 is configured to control the intelligent operating device to pass the grooved rivet 1 through the mounting hole of the fastener 3 in a first direction, and then control the grooved rivet 1 to rotate 90° along the central axis. If the grooved rivet 1 is pulled further, the rivet head 111 on the side facing the sleeve 12 will at least partially fit against the inner wall of the embedded part 2, thereby locking the grooved rivet 1 in the embedded part 2 and preventing it from being pulled out.

[0108] In some embodiments, the processor 6 is configured to control the anvil of the fastening clamp 4 to press the sleeve 12 forward, causing the sleeve 12 to deform under pressure and move forward on the locking section 113 until the flange 121 of the sleeve 12 is in contact with the surface of the fastener 3.

[0109] In some embodiments, the processor 6 can send instructions to the drive mechanism of the fastening clamp 4 to drive the jaws to move and engage the tail section 114 of the rivet 11; control the drive mechanism of the fastening clamp 4 to retract the jaws so that the jaw contour part matches the groove 1141 and clamps the arc surface of the groove 1141, thereby achieving meshing and clamping.

[0110] Axial force refers to the force along the central axis of fastener 3.

[0111] In some embodiments, the processor 6 controls the anvil of the fastening clamp 4 to press the sleeve 12 forward, while simultaneously driving the jaws to pull the rivet 11 backward until the fastener 3 is clamped by axial forces from both sides. The jaws continue to pull the rivet 11 backward until the pressure of the fastening clamp 4 reaches a preset pressure threshold, causing the sleeve 12 to deform and lock onto the locking section 113, thus riveting and locking the fastener. The preset pressure threshold can be set empirically. The preset pressure threshold is greater than the yield strength pressure of the sleeve 12. The yield strength pressure refers to the minimum pressure that causes the sleeve 12 to undergo permanent plastic deformation.

[0112] In some embodiments, after riveting is completed, the processor 6 sends a command to the fastening fixture to release the clamped rivet tail and drive the fastening fixture 4 to move out in the first direction; and controls the intelligent operation equipment to exit the field.

[0113] In some embodiments, when the fastening clamp 4 is withdrawn, the stress generated by the deformation of the sleeve 12 keeps the sleeve 12 in a constant high clamping force state, thereby achieving long-term clamping of the fastener 3.

[0114] The system of some embodiments in this specification significantly improves the level of riveting automation and quality by controlling key riveting steps such as insertion of ring groove rivets, sleeve deformation, clamping of chucks and application of axial force through processor control, forming riveted joints with high strength and good stability, thereby significantly improving product quality and production efficiency.

[0115] Figure 6 This is a schematic diagram of the groove structure shown in some embodiments of this specification.

[0116] In some embodiments, such as Figure 6 As shown, the groove 1141 includes a first arc a, a second arc b and a third arc c arranged sequentially along a first direction. The radius of the second arc b is greater than the radius of the first arc a, and the radius of the second arc b is greater than the radius of the third arc c.

[0117] The first arc a, the second arc b, and the third arc c are continuous arcs with different radii. Together, they form the continuous and smooth arc surface of the groove 1141.

[0118] The first arc a is located on the side of the groove 1141 near the locking section 113. The second arc b is located in the middle of the groove 1141. The second arc b is the force-bearing area of ​​the clamping jaws of the fastening fixture 4 after clamping. The third arc c is the side of the groove 1141 near the tail tooth section 1142.

[0119] During riveting, the jaws enter the pull groove 1141 from the third arc c. The smaller radii of the first arc a and the third arc c limit the jaws, preventing them from sliding out from either side of the pull groove 1141. Since the jaws tend to move towards and slide out of the third arc c when pulled, setting the radius of the third arc c to a smaller value better prevents the jaws from sliding out. The larger radius of the second arc b helps to disperse the high-strength tensile force, preventing stress concentration that could cause the tail section 114 of the rivet 11 to break. The third arc c corresponds to the first arc a, forming a closed arc-shaped chamber to prevent the jaws from slipping axially backward during the stretching process.

[0120] In some embodiments, by setting arcs of different radii to form a continuous and smooth arc surface of the groove 1141, stress concentration can be eliminated, and automatic alignment and precise engagement of the rivet 11 and the jaws of the fastening clamp 4 can be achieved.

[0121] In some embodiments, such as Figures 3-4As shown, the locking section 113 includes a threaded section 1131 near the tail tooth section 1142 and a toothed section 1132 away from the tail tooth section 1142. When the sleeve 12 is squeezed and moves from the threaded section 1131 to the toothed section 1132, the inner wall of the sleeve 12 deforms to complete the riveting and locking.

[0122] The threaded section 1131 is used to provide axial guidance and preload positioning when the sleeve 12 undergoes initial deformation. The surface of the threaded section 1131 has a threaded structure.

[0123] The toothed section 1132 is used to engage with the sleeve 12 to achieve a locking fixation. The toothed section 1132 has a toothed groove structure, which provides a more stable mechanical lock after the sleeve 12 deforms. The toothed groove structure of the sleeve 12 effectively prevents the sleeve from retracting. The toothed groove structure accommodates the plastic flow of the extruded metal from the sleeve 12, forming a multi-stage shear-resistant rigid interlocking interface, thereby providing the annular groove rivet 1 with durable axial load-bearing capacity and efficient anti-vibration and anti-loosening performance.

[0124] In some embodiments, the processor 6 can control the jaws of the fastening clamp 4 to pull the groove 1141, while simultaneously controlling the anvil to press the sleeve 12 forward, so that the sleeve 12 moves along the threaded section 1131 of the locking section 113 to the toothed section 1132; the groove 1141 continues to be pulled until the pulling force of the fastening clamp 4 is greater than a preset threshold, and the inner sidewall of the sleeve 12 undergoes plastic deformation and engages with the toothed section 1132, thereby completing the riveting and locking.

[0125] In some embodiments, the locking section 113 is designed in sections, the threaded section 1131 guides the movement of the sleeve 12, and the toothed section 1132 achieves deep plastic interlocking. This segmented transition mechanism reduces the installation load fluctuation of the grooved rivet 1 and significantly improves the connection strength and reliability of the grooved rivet 1.

[0126] In some embodiments, the inner sidewall of the sleeve 12 is provided with an internal thread, which matches the thread segment 1131.

[0127] In some embodiments, the internal threads of the inner sidewall of the sleeve 12 can be machined by turning, milling, rolling or grinding.

[0128] In some embodiments, the size and shape of the internal thread precisely match the size and shape of the thread segment 1131. The inner wall of the sleeve 12 rotates relative to the thread segment 1131. In some embodiments, the processor 6 can control the jaws of the fastening clamp 4 to pull the groove 1141, while simultaneously controlling the anvil to press the sleeve 12 forward, causing the sleeve 12 to move along the thread segment 1131 of the locking section 113 to the tooth groove section 1132 by rotation.

[0129] In some embodiments described in this specification, a secure connection between the sleeve and the locking section can be achieved by providing an internal thread on the inner wall of the sleeve that matches the thread section. Precise thread matching guides the axial movement of the sleeve and can withstand axial forces and torques, significantly improving the overall stability and service life of the mechanical structure or equipment.

[0130] Figure 7 8 is a schematic diagram showing the installation position of the spring according to some embodiments of this specification. 8 is a schematic cross-sectional view of the sleeve according to some embodiments of this specification.

[0131] In some embodiments, such as Figure 7 Figure 8 As shown, a spring piece 124 is provided on the inner side wall of the sleeve 12 near the flange 121, and the spring piece 124 is inclined toward the side away from the flange 121.

[0132] The inner wall of sleeve 12 refers to the inner wall surface of sleeve 12 on the side closest to rivet 11.

[0133] The spring piece 124 is used to assist in the fixing and locking of the sleeve 12 and the rivet 11. The spring piece 124 is a thin sheet structure with elastic deformation capability. The spring piece 124 is set to protrude from the inner wall of the sleeve 12.

[0134] In some embodiments, when the sleeve 12 is inserted in the first direction, the spring piece 124 is squeezed and deformed in the inclined direction, resulting in less resistance; if the sleeve 12 is dislodged in the opposite direction, the spring piece 124 deforms and engages with the teeth of the toothed section 1132 to prevent the sleeve from loosening.

[0135] In some embodiments, one or more spring pieces 124 may be provided. If multiple spring pieces 124 are provided, they are evenly and equally distributed along the circumferential direction of the sleeve 12, thereby ensuring uniform force distribution.

[0136] In some embodiments, the tilt angle of the spring 124 can be preset based on experience or requirements.

[0137] In some embodiments, by setting the spring piece 124 to tilt unidirectionally away from the flange 121, the sleeve 12 and the rivet 11 can be self-locking. When the sleeve 12 moves on the toothed section 1132, even if it is vibrated, the spring piece 124 will still be locked in the toothed section 1132, effectively preventing the sleeve 12 from loosening and falling, thereby ensuring a stable connection between the sleeve 12 and the rivet 11.

[0138] Figure 9 This is a schematic diagram of the spring sheet structure according to some embodiments of this specification. Figure 10 This is a cross-sectional structural diagram of the tooth groove segment according to some embodiments of this specification.

[0139] In some embodiments, such as Figures 9-10 As shown, the spring 124 includes two lateral springs 1241 and a middle spring 1242. The toothed section 1132 of the locking section 113 is provided with a spring groove 1133, and the spring 124 engages with the spring groove 1133. The spring groove 1133 is a concave trapezoid, and when the two lateral springs 1241 are located within the concave trapezoid, the two lateral springs 1241 are compressed.

[0140] The lateral spring 1241 is used to generate deformation and cooperates with the spring groove 1133. The intermediate spring 1242 is used to support the lateral spring 1241.

[0141] In some embodiments, two lateral springs 1241 are respectively connected to both sides of the intermediate spring 1242. The lateral springs 1241 and the intermediate spring 1242 can be integrally formed or connected by welding, hot melting, or other methods. For example, the lateral springs 1241 and the intermediate spring 1242 can be manufactured from forged alloy steel sheets.

[0142] The spring groove 1133 is used to accommodate the spring 124 and guide the movement direction of the sleeve 12.

[0143] A concave trapezoidal shape refers to the cross-section of the spring groove 1133 having a trapezoidal shape with a wide bottom and a narrow opening, such as... Figure 10 As shown.

[0144] In some embodiments, when the sleeve 12 moves on the threaded section 1131 of the locking section and is about to enter the toothed section 1132, the processor 6 can control the intelligent operating device to rotate the sleeve 12, aligning the spring piece 124 with the spring piece groove 1133; continuing to control the anvil to press the sleeve 12 forward, the two lateral spring pieces are pressed together by the wall of the spring piece groove 1133, thereby causing the spring piece 124 to slide into the spring piece groove 1133 and move along the spring piece groove 1133. During the movement, the wall of the spring piece groove 1133 will block the circumferential rotational movement of the spring piece 124, thereby playing a guiding and limiting role and preventing the sleeve 12 from rotating.

[0145] In some embodiments, the size of the spring slot 1133 decreases along the first direction.

[0146] In some embodiments, such as Figure 10 As shown, the cross-section of the spring slot 1133 is trapezoidal, and the dimensions of the spring slot 1133 can be represented by the height and base of the trapezoid. Along the first direction, the height and base of the trapezoid decrease proportionally, making the spring slot 1133 shrink uniformly as a whole, thereby ensuring that the force change of the spring 124 is linear when it moves in the spring slot 1133.

[0147] In some embodiments, the spring slots 1133 with decreasing dimensions are provided, so that when the thickness of the fastener 3 increases, the compression degree of the spring 124 after riveting is higher, thereby increasing the support force of the spring 124 and improving the anti-rotation effect.

[0148] The synergistic effect of the lateral spring 1241, the intermediate spring 1242 and the spring groove 1133 can improve the anti-rotation loosening performance of the sleeve 12.

[0149] In some embodiments, since the spring 124 is a thin sheet structure, there is a gap between the riveted toothed section 1132 and the spring groove 1133, thereby generating additional stress.

[0150] In some embodiments, a hot melt adhesive block is provided in the spring groove 1133. After the ring groove rivet 1 is riveted and locked, the sleeve 12 is heated, and the hot melt adhesive block melts and fills the gap between the toothed section 1132 and the spring groove 1133.

[0151] Hot melt adhesive is a solid adhesive that melts and flows when heated and solidifies rapidly upon cooling. It is used to fill the gap between the toothed section 1132 and the spring groove 1133.

[0152] In some embodiments, the hot melt adhesive block may be composed of polymer materials such as polyamide, polyolefin, and polyurethane. The hot melt adhesive block may be bonded to the inner wall of the spring groove 1133.

[0153] In some embodiments, the processor 6 can control the intelligent operating equipment to hold the heating device to heat the sleeve 12. The heating device may include a high-frequency induction heating element, a resistance wire, a hot air gun, etc.

[0154] In some embodiments, heating the hot melt adhesive block to melt it and fill the structural gaps can serve to reinforce and seal the structure, preventing additional radial or axial compression, thereby preventing the sleeve 12 from loosening, enhancing the riveting reliability and fatigue resistance between the rivet 11 and the sleeve 12, and extending the service life of the annular groove rivet 1.

[0155] In some embodiments, an adhesive layer and a sealing film are provided in the spring slot 1133. Before the sleeve 12 is installed, the adhesive layer is in a sealed state. When the spring 124 is inserted into the spring slot 1133, the spring 124 breaks the sealing film, and the adhesive in the adhesive layer flows and spreads to the toothed section 1132.

[0156] The adhesive layer is the area that contains the adhesive. The adhesive can be epoxy resin, polyurethane, etc.

[0157] A sealing film is a thin film that seals the adhesive layer. Sealing films can be made of plastic film, metal foil, or composite materials.

[0158] In some embodiments, the adhesive layer and the sealing film may be disposed along the length direction of the spring groove 1133 (such as the first direction). In some embodiments, the adhesive layer and the sealing film may be disposed on the side of the spring groove 1133 near the rivet head 111 of the fastener 3, thereby preventing the sealing film from being damaged prematurely and the adhesive from solidifying prematurely.

[0159] In some embodiments, before the sleeve 12 is installed, the adhesive layer is sealed by a sealing film. When the spring piece 124 is inserted into the spring piece groove 1133 and moves to contact the sealing film, the spring piece 124 breaks the sealing film, and the adhesive in the adhesive layer flows and spreads to the gap between the toothed section 1132 and the spring piece groove 1133.

[0160] In some embodiments, when the spring clip 124 is engaged in the spring clip groove 1133, it automatically punctures the sealing membrane, enabling precise release of adhesive and automatic diffusion to the interface gaps. This chemical bonding enhances the fixing strength of the ring groove rivet. This method requires no heating and is more convenient to operate.

[0161] Figure 11 This is an exemplary flowchart illustrating the construction method for anti-loosening mechanical connections according to some embodiments of this specification. Figure 11 As shown, process 1100 is an exemplary process of a construction method for an anti-loosening mechanical connection, and process 1100 includes steps 1110-1140. In some embodiments, steps 1110-1140 are executed by processor 6.

[0162] Step 1110: Determine the actual location of the embedded parts based on the image information and BIM model obtained by the image acquisition device.

[0163] Step 1120: Determine multiple riveting points based on the actual location of the embedded parts.

[0164] Step 1130, for each riveting point: control the intelligent operation equipment to grab the ring groove rivet and place it into the riveting point in sequence.

[0165] Step 1140: Control the fastening fixture to rivet and lock the annular groove rivet.

[0166] For further explanation of the above content, please refer to Figures 1-2 And related explanations.

[0167] In some embodiments, the fusion of point cloud data and BIM model enables non-contact, precise obstacle avoidance positioning of the embedded part 2. Automated riveting using intelligent equipment significantly improves the accuracy of riveting point selection and construction consistency under complex working conditions.

[0168] The basic concepts have been described above. It is clear that the detailed disclosure above is merely illustrative and does not constitute a limitation of the present invention. Although not explicitly stated herein, various modifications, improvements, and corrections may be made to the present invention by those skilled in the art. Such modifications, improvements, and corrections are suggested in this invention and therefore remain within the spirit and scope of the exemplary embodiments of the present invention.

[0169] Meanwhile, specific terms are used to describe embodiments of the invention. For example, "an embodiment," "one embodiment," and / or "some embodiments" refer to a particular feature, structure, or characteristic related to at least one embodiment of the invention. Therefore, it should be emphasized and noted that "an embodiment," "one embodiment," or "an alternative embodiment" mentioned twice or more in different locations in this invention do not necessarily refer to the same embodiment. Furthermore, certain features, structures, or characteristics in one or more embodiments of the invention can be appropriately combined.

[0170] Furthermore, unless expressly stated in the claims, the order of processing elements and sequences, the use of numbers and letters, or other names described in this invention are not intended to limit the order of the processes and methods of this invention. Although the foregoing disclosure has discussed some currently considered useful embodiments of the invention through various examples, it should be understood that such details are for illustrative purposes only, and the appended claims are not limited to the disclosed embodiments; rather, the claims are intended to cover all modifications and equivalent combinations that conform to the spirit and scope of the embodiments of this invention. For example, while the system components described above can be implemented by hardware devices, they can also be implemented solely by software solutions, such as installing the described system on existing servers or mobile devices.

[0171] Similarly, it should be noted that, in order to simplify the description of this invention and thus aid in the understanding of one or more embodiments, the foregoing description of the embodiments of this invention sometimes combines multiple features into a single embodiment, drawing, or description thereof. However, this disclosure method does not imply that the subject matter of the invention requires more features than those mentioned in the claims. In fact, the embodiments contain fewer features than all the features of the single embodiment disclosed above.

[0172] In some embodiments, numbers describing the quantity of components and attributes are used. It should be understood that such numbers used in the description of embodiments are modified in some examples with the terms "approximately," "approximately," or "generally." Unless otherwise stated, "approximately," "approximately," or "generally" indicates that the numbers are allowed to vary by ±20%. Accordingly, in some embodiments, the numerical parameters used in the invention and claims are approximate values, which may be changed depending on the characteristics required by individual embodiments. In some embodiments, numerical parameters should take into account specified significant digits and employ a general method of digit preservation. Although the numerical ranges and parameters used to confirm their breadth of range in some embodiments of the invention are approximate values, in specific embodiments, such values ​​are set as precisely as feasible.

[0173] Finally, it should be understood that the embodiments described in this invention are merely illustrative of the principles of the invention. Other variations may also fall within the scope of this invention. Therefore, alternative configurations of the embodiments of this invention are considered as examples and not limitations, and are regarded as consistent with the teachings of this invention. Accordingly, the embodiments of this invention are not limited to those explicitly described and illustrated herein.

Claims

1. A system of anti-loosening mechanical connection embedded parts, characterized in that, include: Embedded parts with receiving cavities, ring groove rivets, fastening clamps, image acquisition devices, and processors; The grooved rivet is used to connect fasteners and fix the fasteners to the receiving cavity of the embedded part; the grooved rivet includes a rivet and a sleeve; The rivet includes a rivet head, a rivet shank, a locking section and a tail section arranged sequentially along a first direction. The tail section includes a groove and a tail tooth section. The groove is a continuous and smooth arc surface. The sleeve includes a flange and a connecting section arranged sequentially along the first direction, the connecting section being sleeved on the locking section; the flange and the rivet head of the sleeve are respectively located on both sides of the fastener; the locking section includes a threaded section near the tail tooth section and a toothed section away from the tail tooth section, when the sleeve is squeezed and moves from the threaded section to the toothed section, the inner wall of the sleeve deforms to complete the riveting and locking; The fastening clamp is configured to drive the annular groove rivet to rivet and lock the embedded part and the fastener; The image acquisition device is configured to acquire image information; The processor is configured to: Based on the image information and BIM model, the actual location of the embedded part is determined; Based on the actual location of the embedded parts, multiple riveting points are determined; For each riveting point: The intelligent operating equipment is controlled to pick up the annular groove rivet and place it into the riveting point; The fastening fixture is controlled to rivet and lock the annular groove rivet.

2. The anti-loosening mechanical connection embedded part system according to claim 1, characterized in that, The control of the fastening fixture to rivet and lock the annular rivet includes: Control the annular groove rivet to pass through the mounting hole of the fastener along the first direction, and squeeze the sleeve to move the sleeve on the locking section in a direction opposite to the first direction until the fastener abuts; Control the jaws of the fastening clamp to engage with the tail section, and control the jaw contour part of the fastening clamp to mesh and clamp with the groove; The fastening clamp is controlled to apply an axial force to the fastener, the sleeve presses against the fastener and deforms to lock it onto the locking section; Control the fastening fixture to retract, completing the riveting process.

3. The anti-loosening mechanical connection embedded part system according to claim 1, characterized in that: The groove includes a first arc, a second arc, and a third arc arranged sequentially along the first direction, wherein the radius of the second arc is greater than the radius of the first arc, and the radius of the second arc is greater than the radius of the third arc.

4. The anti-loosening mechanical connection embedded part system according to claim 1, characterized in that: The inner wall of the sleeve is provided with an internal thread, which matches the thread segment.

5. The anti-loosening mechanical connection embedded part system according to claim 1, characterized in that: The rivet head has a T-shaped dovetail structure, and the angle between the side wall of the rivet head near the tail section and the first direction is 60°-90°.

6. The anti-loosening mechanical connection embedded part system according to claim 4, characterized in that: A spring is provided on the inner wall of the sleeve near the flange, and the spring is inclined toward the side away from the flange.

7. The anti-loosening mechanical connection embedded part system according to claim 6, characterized in that: The spring includes two lateral springs and a middle spring, and the toothed section of the locking section is provided with a spring groove, and the spring cooperates with the spring groove; The spring slot is a concave trapezoid, and when the two lateral springs are located within the concave trapezoid, the two lateral springs are compressed.

8. The anti-loosening mechanical connection embedded part system according to claim 7, characterized in that: Along the first direction, the size of the spring slot decreases.

9. The anti-loosening mechanical connection embedded part system according to claim 7, characterized in that: A hot melt adhesive block is provided in the spring groove. After the ring groove rivet is riveted and locked, the sleeve is heated, and the hot melt adhesive block melts and fills the gap between the toothed section and the spring groove.

10. The anti-loosening mechanical connection embedded part system according to claim 7, characterized in that: The spring groove is provided with an adhesive layer and a sealing film; Before the sleeve is installed, the adhesive layer is in a sealed state. When the spring is inserted into the spring groove, the spring breaks the sealing film, and the adhesive in the adhesive layer flows and spreads to the toothed section.

11. A construction method for an anti-loosening mechanical connection, applied to the anti-loosening mechanical connection embedded part system as described in claim 1, characterized in that, The method is processor-based and includes: Based on the image information and BIM model acquired by the image acquisition device, the actual location of the embedded part is determined. Based on the actual position of the embedded part, multiple riveting points are determined; For each riveting point: The intelligent operating equipment is controlled to grab the annular groove rivets and place them sequentially into the riveting points; The fastening fixture is controlled to rivet and lock the annular groove rivet.

12. The construction method for anti-loosening mechanical connections according to claim 11, characterized in that, The method further includes: The error of the embedded parts is obtained by using a total station, and the BIM model is corrected based on the error of the embedded parts.

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