A double thread bolt assembly device and method thereof

Abstract

This application discloses a double-wire bolt assembly device and method, including a support assembly and a fixing assembly. The support assembly is used to clamp a slotted bolt. The slotted bolt includes a sleeve with one end open. A receiving cavity communicating with the opening is formed inside the sleeve. A press-in groove and a retaining groove are respectively formed on the side wall of the sleeve along the axial direction of the sleeve. A rotating groove is perpendicularly connected between the press-in groove and the retaining groove. The press-in groove, retaining groove, and rotating groove are all connected to the receiving cavity. A shaped spring is provided in the receiving cavity, and one end of the shaped spring protrudes out of the press-in groove. The fixing assembly is used to clamp a retaining ring. One end of the fixing assembly has an assembly hole that mates with the sleeve, and the retaining ring is located in the assembly hole. The inner wall of the retaining ring has an inner protrusion. The fixing assembly is also used to align the inner protrusion with the press-in groove to fit the retaining ring onto the sleeve. The fixing assembly is also used to rotate the retaining ring so that the inner protrusion passes through the rotating groove and enters the retaining groove. This application has the advantages of improved assembly efficiency and high assembly quality.

Description

Technical Field

[0001] This application relates to the field of aircraft parts assembly technology, and in particular to a double-bolt assembly device and method. Background Technology

[0002] In the field of aerospace manufacturing, tens of thousands of small crown-head double-strand bolts are used in the installation and connection of movable covers, skins, and aircraft frames during the aircraft structural assembly process. These small crown-head double-strand bolts mainly include slotted bolts, retaining rings, and irregularly shaped springs. Due to the small shape and volume of retaining rings, manual installation is difficult and inefficient. During installation, uneven force when the retaining ring compresses the spring often damages the retaining ring itself, leading to breakage during use. Therefore, the current assembly of double-strand bolts suffers from low efficiency and poor quality, making it difficult to meet the high-efficiency assembly requirements of large quantities of double-strand bolts. Summary of the Invention

[0003] The main objective of this application is to provide a double-wire bolt assembly device and method, which aims to solve the technical problem of low efficiency in existing double-wire bolt assembly.

[0004] To achieve the above objectives, this application provides a double-wire bolt assembly device, including a support assembly and a fixing assembly. The support assembly is used to clamp a slotted bolt. The slotted bolt includes a sleeve with one open end. A receiving cavity communicating with the opening is provided inside the sleeve. A strip-shaped press-in groove and a retaining groove are respectively formed along the axial direction of the sleeve sidewall. The press-in groove communicates with the opening. A rotating groove is perpendicularly connected between the press-in groove and the retaining groove. The press-in groove, retaining groove, and rotating groove are all connected to the receiving cavity. A shaped spring is provided inside the receiving cavity, with one end of the shaped spring protruding out of the press-in groove. The fixing assembly is used to clamp a retaining ring. One end of the fixing assembly has an assembly hole that mates with the sleeve, and the retaining ring is located within the assembly hole. The retaining ring has an inner protrusion on its inner wall. The fixing assembly is also used to align the inner protrusion with the press-in groove to fit the retaining ring onto the sleeve. The fixing assembly is also used to rotate the retaining ring so that the inner protrusion passes through the rotating groove and enters the retaining groove.

[0005] Optionally, it also includes a support beam and a rotating handle. The support beam includes a connecting rod, with a first support rod and a second support rod vertically connected to its two ends respectively. The support assembly is detachably connected to the side wall of the first support rod near the second support rod. The rotating handle is threaded through the second support rod and movably connected to one end of the fixing assembly. The rotating handle is used to apply vertical pressure to the fixing assembly.

[0006] Optionally, the fixing component includes a limiting plate, a clamping mechanism, and a positioning plate, with the mounting hole penetrating the limiting plate; the clamping mechanism is disposed on the end face of the limiting plate and is used to press the retaining ring into the mounting hole; one end of the positioning plate has a movable hole that cooperates with the rotating handle, and the other end of the positioning plate is connected to a positioning post, which is used to extend from the end of the limiting plate away from the clamping mechanism into the mounting hole to press the retaining ring, and the positioning post has a clearance hole that cooperates with the open end of the sleeve.

[0007] Optionally, the end face of the limiting plate is provided with a shaped protrusion, and a clamping mechanism is disposed on the shaped protrusion. The clamping mechanism includes a limiting strip and a clamping plate. The limiting strip is rotatably connected to the side wall of the shaped protrusion and is used to press the inner protrusion of the retaining ring. The limiting strip can rotate around a first central axis and can extend into the pressing groove. The first central axis is an axis perpendicular to the central axis of the limiting plate. The clamping plate is rotatably connected to the end face of the shaped protrusion, and one end of the clamping plate is used to press the limiting strip. The clamping plate can rotate around a second central axis. The second central axis is an axis parallel to the central axis of the limiting plate.

[0008] Optionally, the sidewalls and end faces of the irregularly shaped boss are threaded with positioning bolts, which respectively movably pass through the limiting strip and the retaining plate.

[0009] Optionally, the end of the positioning post is provided with a limiting protrusion, which is used to cooperate with the inner groove of the retaining ring.

[0010] Optionally, the end face of the limiting plate near the positioning plate is provided with a fan-shaped boss, and the end face of the positioning plate near the limiting plate is provided with a fan-shaped groove that cooperates with the fan-shaped boss. The fan-shaped area of ​​the fan-shaped groove is larger than the fan-shaped area of ​​the fan-shaped boss.

[0011] Optionally, the support assembly includes a countersunk screw and a support plate. The countersunk screw is disposed on the side wall of the first support rod. One end of the support plate has an internal threaded hole that mates with the countersunk screw, and the other end of the support plate is provided with a polygonal prism for mates with the polygonal inner cavity of the sleeve. The polygonal inner cavity is located at the end of the sleeve away from the open end of the sleeve.

[0012] Optionally, the rotating handle includes a threaded rod, a movable rod, a connector, and an operating rod. The threaded rod is threaded through the second support rod. The movable rod is connected to one end of the threaded rod and is used to movably engage with the movable hole. The connector is connected to the other end of the threaded rod. The operating rod is vertically connected to the connector.

[0013] Optionally, weight-reducing holes are provided on the connecting rod, the first support rod, and the second support rod.

[0014] A method for assembling double-wire bolts, based on the aforementioned double-wire bolt assembly device, includes the following steps:

[0015] Install the slotted bolt at one end of the support assembly;

[0016] Insert the retaining ring into the mounting hole of the fixing component, and press one end face of the retaining ring with the clamping mechanism;

[0017] Align the mounting hole of the retaining component with the retaining ring with the open end of the sleeve and insert it, and make the limit strip and the inner protrusion of the retaining ring slide into the pressing groove of the sleeve at the same time.

[0018] Rotate the handle to move the fixing component in a straight line toward the slotted bolt, so that the inner protrusion of the limit strip and the retaining ring continues to penetrate deeper into the sleeve's press-in groove and squeeze the irregular spring until the inner protrusion of the retaining ring slides into the sleeve's rotation groove position.

[0019] Manually rotate the fixing component so that the inner protrusion of the retaining ring rotates and passes through the rotating groove of the sleeve until the inner protrusion of the retaining ring switches into the retaining groove of the sleeve.

[0020] Rotate the handle in the opposite direction to remove the fixing component from the slotted bolt, so that the retaining ring slides along the retaining groove of the sleeve to the assembly position under the spring action of the profiled spring, thus completing the assembly of the profiled spring on the slotted bolt to obtain a double-wire bolt.

[0021] Remove the double-strut bolts from the support assembly.

[0022] Optionally, removing the fixing component from the slotted bolt includes:

[0023] Rotate the card plate to one side along the end face of the irregular protrusion to release the card plate from the restriction of the limiting strip;

[0024] Rotate the limiting strip along the side wall of the irregular boss to one side to release the limiting strip from restricting the retaining ring;

[0025] Pull out the slotted bolts from the entire retaining assembly that has been released from the clasp.

[0026] The beneficial effects that this application can achieve are as follows:

[0027] This application uses a support component to clamp and fix the slotted bolt, and then uses a fixing component to clamp the retaining ring in the assembly hole. During assembly, the assembly hole of the fixing component is fitted onto the sleeve, and the fixing component is moved forward along the length of the sleeve to align the inner protrusion of the retaining ring with the pressing groove and embed it. The fixing component continues to move forward along the sleeve, while the shaped spring is compressed until the inner protrusion of the retaining ring slides along the pressing groove to the position of the rotating groove. Then, the fixing component is rotated, thereby rotating the retaining ring so that the inner protrusion of the retaining ring passes through the rotating groove and enters the retaining groove. At this time, the fixing component is removed to release the clamping restriction on the retaining ring. Under the spring's rebound and reset action, the retaining ring slides along the corresponding direction of the retaining groove to the assembly position, thus completing the assembly of the shaped spring on the slotted bolt, resulting in a finished double-wire bolt. Finally, the double-wire bolt can be removed from the support component. This application uses a support component and a fixing component for assisted assembly. During assembly, the retaining ring is subjected to uniform force, which can quickly and accurately position it. Compared with pure manual assembly, it greatly improves assembly efficiency while ensuring assembly quality, and has high practicality. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the specific embodiments of this application or the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0029] Figure 1 This is a schematic diagram of the structure of a double-wire bolt assembly device according to an embodiment of this application;

[0030] Figure 2 This is a schematic diagram of the slotted bolt structure in an embodiment of this application;

[0031] Figure 3 This is a schematic diagram of the internal structure of the slotted bolt in an embodiment of this application;

[0032] Figure 4 This is a schematic diagram of the top view of the slotted bolt in an embodiment of this application;

[0033] Figure 5 This is a schematic diagram of the retaining ring structure in an embodiment of this application;

[0034] Figure 6 This is a schematic diagram of the structure of the fixing component in an embodiment of this application;

[0035] Figure 7 This is a structural schematic diagram of the main view of the fixed component in an embodiment of this application;

[0036] Figure 8 This is a structural schematic diagram of the side view of the fixed component in an embodiment of this application;

[0037] Figure 9 This is a schematic diagram of the limiting disk structure in an embodiment of this application;

[0038] Figure 10 This is a schematic diagram of the structure of the limiting disk as shown in the top view of an embodiment of this application;

[0039] Figure 11 This is a structural schematic diagram of the limiting plate from a bottom view in an embodiment of this application;

[0040] Figure 12 for Figure 10 A structural schematic diagram of the right view;

[0041] Figure 13 This is a schematic diagram of the positioning disk structure in an embodiment of this application;

[0042] Figure 14 This is a schematic diagram of the internal structure of the positioning disk in an embodiment of this application;

[0043] Figure 15 This is a schematic diagram of the front structure of the positioning disk in an embodiment of this application;

[0044] Figure 16 This is a schematic diagram of the structure of the limiting strip in an embodiment of this application;

[0045] Figure 17 This is a schematic diagram of the card plate structure in an embodiment of this application;

[0046] Figure 18 This is a schematic diagram of the supporting beam in an embodiment of this application;

[0047] Figure 19 This is a schematic diagram of the countersunk screw in an embodiment of this application;

[0048] Figure 20 This is a schematic diagram of the support disk structure in an embodiment of this application;

[0049] Figure 21 This is a schematic diagram of the internal structure of the support disk in an embodiment of this application;

[0050] Figure 22 This is a partial structural diagram of the rotating handle in an embodiment of this application.

[0051] Figure label:

[0052] 100-Support assembly, 110-Countersunk screw, 120-Support plate, 121-Internal threaded hole, 122-Polygonal prism, 200-Fixing assembly, 210-Limiting plate, 211-Assembly hole, 212-Irregular boss, 213-Fan-shaped boss, 220-Clamping mechanism, 221-Limiting strip, 222-Clamping plate, 223-Positioning bolt, 230-Positioning plate, 231-Modible hole, 232-Positioning pin, 233-Allowing hole, 234-Limiting protrusion, 235-Fan-shaped groove, 3 00-Support beam, 310-Connecting rod, 320-First support rod, 330-Second support rod, 340-Weight reduction hole, 400-Rotating handle, 410-Threaded rod, 420-Modible rod, 430-Connector, 440-Operating rod, 500-Slotted bolt, 510-Sleeve, 511-Receiving cavity, 512-Press-in groove, 513-Rotating groove, 514-Slot, 515-Multi-faceted inner cavity, 520-Irregular spring, 600-Snap ring, 610-Inner protrusion, 620-Inner groove.

[0053] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0054] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0055] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of this application are only used to explain the relative positional relationship and movement of each component in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0056] In this application, unless otherwise expressly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0057] Furthermore, if the embodiments of this application involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text includes three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed in this application.

[0058] Example 1

[0059] Reference Figures 1-22 This embodiment provides a double-wire bolt assembly device, including a support assembly 100 and a fixing assembly 200. The support assembly 100 is used to clamp a slotted bolt 500. The slotted bolt 500 includes a sleeve 510 with one open end. A receiving cavity 511 communicating with the opening is formed inside the sleeve 510. A strip-shaped press-in groove 512 and a retaining groove 514 are respectively formed on the side wall of the sleeve 510 along its axial direction. The press-in groove 512 communicates with the opening. A rotating groove 513 is perpendicularly connected between the press-in groove 512 and the retaining groove 514. The press-in groove 512, the retaining groove 514, and the rotating groove 513 are all connected to the receiving cavity 511. A shaped spring 520 is provided inside the receiving cavity 511, with one end of the shaped spring 520 protruding out of the pressing groove 512; a fixing component 200 is used to clamp the retaining ring 600, and one end of the fixing component 200 is provided with an assembly hole 211 that mates with the sleeve 510, and the retaining ring 600 is located in the assembly hole 211; wherein, the inner wall of the retaining ring 600 is provided with an inner protrusion 610; the fixing component 200 is also used to align the inner protrusion 610 with the pressing groove 512 so as to fit the retaining ring 600 onto the sleeve 510; the fixing component 200 is also used to rotate the retaining ring 600 so that the inner protrusion 610 passes through the rotation groove 513 and enters the retaining groove 514.

[0060] Currently, there is no definitive and applicable installation process for double-strut bolts when installing retaining rings. During installation, uneven force distribution when the spring is compressed during insertion often damages the retaining ring, leading to breakage during use. Until the issue of retaining ring installation quality is resolved, increasing the retaining ring thickness is currently the most effective way to reduce breakage. However, increasing the thickness also increases the weight of the retaining ring, which contradicts the aircraft's goal of reducing weight while maintaining quality.

[0061] Therefore, in this embodiment, the support component 100 can clamp and fix the slotted bolt 500, and the fixing component 200 can clamp the retaining ring 600 in the assembly hole 211. During assembly, the assembly hole 211 of the fixing component 200 is fitted onto the sleeve 510, and the fixing component 200 is moved forward along the length of the sleeve 510 to align the inner protrusion 610 of the retaining ring 600 with the pressing groove 512 and embed it. The fixing component 200 continues to move forward along the sleeve 510, while the irregular spring 520 is compressed until the inner protrusion 610 of the retaining ring 600 slides along the pressing groove 512 to the position of the rotating groove 513. Then, the fixing component 200 is rotated to rotate the retaining ring 600 so that the inner protrusion 610 of the retaining ring 600 is aligned with the pressing groove 512 and embedded. 10 passes through the rotating groove 513 and enters the slot 514. At this time, the fixing component 200 is removed to release the clamping restriction on the retaining ring 600. Under the spring return action of the irregular spring 520, the retaining ring 600 slides along the corresponding direction of the slot 514 to the assembly position (i.e., the end of the slot 514 near the opening end of the sleeve 510). Finally, the irregular spring 520 is assembled on the slotted bolt 500, and the finished double-wire bolt is obtained. Finally, the double-wire bolt can be removed from the support component 100. In this embodiment, the support component 100 and the fixing component 200 are used for auxiliary assembly. During assembly, the retaining ring 600 is subjected to uniform force, which can be quickly and accurately positioned. Compared with pure manual assembly, the assembly efficiency is greatly improved, while ensuring the assembly quality. It is highly practical.

[0062] It should be noted that the insertion trajectory of the inner protrusion 610 of the retaining ring 600 is: pressing groove 512 → rotating groove 513 → retaining groove 514. When pressing into the groove 512, it is necessary to overcome the elasticity limitation of the irregular spring 520, and then accurately position the rotating groove 513. The retaining ring 600 is driven to rotate unidirectionally by external force and finally reaches the retaining groove 514, achieving the installation target of the retaining ring 600. Finally, the inner protrusion 610 of the retaining ring 600 stays in the retaining groove 514. The irregular spring 520 includes a first U-shaped segment and a second U-shaped segment. The first U-shaped segment is located in the receiving cavity 511, and the second U-shaped segment extends out of the pressing groove 512 in an inverted U-shape. The second U-shaped segment is used to provide pressure to the retaining ring 600 so that the inner protrusion 610 of the retaining ring 600 abuts against the end of the retaining groove 514, thereby stably assembling the retaining ring 600 onto the slotted bolt 500.

[0063] As an optional implementation, it also includes a support beam 300 and a rotating handle 400. The support beam 300 includes a connecting rod 310, with a first support rod 320 and a second support rod 330 vertically connected to its two ends respectively. The support assembly 100 is detachably connected to the side wall of the first support rod 320 near the second support rod 330. The rotating handle 400 is threaded through the second support rod 330 and movably connected to one end of the fixing assembly 200. The rotating handle 400 is used to apply vertical pressure to the fixing assembly 200.

[0064] In this embodiment, to further improve operational efficiency and convenience, a support beam 300 and a rotating handle 400 are added. During operation, the support assembly 100 is assembled on one side wall of the first support rod 320. Then, the support beam 300 is aligned on the workbench (not shown in the figure) so that the connecting rod 310 is placed vertically, and the first support rod 320 is placed horizontally on the workbench, while the second support rod 330 is suspended above the first support rod 320. At this time, the support assembly 100 is also arranged vertically. Then, the slotted bolt 500 is installed on the top of the support assembly 100, with the open end of the slotted bolt 500 facing upwards. Then, the fixing assembly 200 with the retaining ring 600 is aligned with the slotted bolt 500 and installed. The rotating handle 400 is installed on the second support rod 330. During assembly, the rotating handle 400 is rotated. The handle 400 is movably connected to the fixed component 200, which does not rotate. Rotating the handle 400 applies vertical pressure to the fixed component 200, causing it to move linearly toward the slotted bolt 500. This presses the retaining ring 600 inside the fixed component 200 into the sleeve 510 of the slotted bolt 500. Therefore, the support beam 300 forms the frame structure for the assembly of the double-line bolt. Its structure mainly provides support for the installation of the retaining ring 600, ensuring the stability of the installation process. Rotating the handle 400 provides the pressure required for assembly, and the pressure can be applied stably and evenly, ensuring uniform force distribution when assembling the retaining ring 600, reducing the risk of damage to the retaining ring 600, resulting in high assembly quality and successful assembly in one attempt, reducing repetitive assembly work and further improving assembly efficiency.

[0065] As an optional implementation, the fixing component 200 includes a limiting plate 210, a clamping mechanism 220, and a positioning plate 230, with an assembly hole 211 penetrating the limiting plate 210; the clamping mechanism 220 is disposed on the end face of the limiting plate 210 and is used to press the retaining ring 600 into the assembly hole 211; one end of the positioning plate 230 has an movable hole 231 that cooperates with the rotating handle 400, and the other end of the positioning plate 230 is connected to a positioning post 232, which is used to extend from the end of the limiting plate 210 away from the clamping mechanism 220 into the assembly hole 211 to press the retaining ring 600, and the positioning post 232 has an clearance hole 233 that cooperates with the open end of the sleeve 510.

[0066] In this embodiment, the positioning disk 230 can be assembled by the positioning post 232 and the assembly hole 211 of the limiting disk 210. During assembly, when the retaining ring 600 is placed in the assembly hole 211 of the limiting disk 210, one side of the retaining ring 600 is in contact with the positioning post 232. Then, the clamping mechanism 220 presses the retaining ring 600 against the end face of the positioning post 232, thereby achieving the clamping and positioning function of the retaining ring 600. When the fixing component 200 is sleeved onto the sleeve 510, the sleeve 510 can pass through the assembly hole 211 and extend into the clearance hole 233 to avoid structural conflict and ensure the retaining ring 600 is securely fastened. Ring 600 can be smoothly fitted onto sleeve 510. Through the positioning plate 230, it can move and cooperate with the rotating handle 400 through the movable hole 231. When the rotating handle 400 is rotated, vertical pressure can be applied to the positioning plate 230 and the limiting plate 210 as a whole. The structure of the fixing component 200 is compact and reasonable. It can pre-fix the retaining ring 600 before assembly. At the same time, it avoids unnecessary cleaning caused by the small size of the retaining ring 600 when it is installed on the aircraft, thus providing reliable auxiliary conditions for the efficient and high-quality assembly of the retaining ring 600.

[0067] Since the inner protrusion 610 of the retaining ring 600 is a relatively weak part, direct force can easily cause the inner protrusion 610 to break, resulting in assembly failure. Therefore, as an optional implementation, the end face of the limiting plate 210 is provided with a shaped protrusion 212, and the clamping mechanism 220 is disposed on the shaped protrusion 212. The clamping mechanism 220 includes a limiting strip 221 and a clamping plate 222. The limiting strip 221 is rotatably connected to the side wall of the shaped protrusion 212. The limiting strip 221 is used to press the inner protrusion 610 of the retaining ring 600. The limiting strip 221 can rotate around the first central axis and can extend into the pressing groove 512. The first central axis is an axis perpendicular to the central axis of the limiting plate 210. The clamping plate 222 is rotatably connected to the end face of the shaped protrusion 212. One end of the clamping plate 222 is used to press the limiting strip 221. The clamping plate 222 can rotate around the second central axis. The second central axis is an axis parallel to the central axis of the limiting plate 210.

[0068] In this embodiment, the clamping mechanism 220 is specially designed and mainly consists of two core components: a limiting strip 221 and a clamping plate 222. The limiting strip 221 is specifically used to press the inner protrusion 610 of the retaining ring 600, while the clamping plate 222 can press the limiting strip 221, thereby achieving the clamping and limiting effect on the retaining ring 600, ensuring a secure clamping that is not easily loosened. The limiting strip 221 can be inserted into the pressing groove 512 simultaneously with the retaining ring 600. During the sliding process of the limiting strip 221 and the retaining ring 600 along the pressing groove 512, the limiting strip 221 serves as the contact point with the irregular spring 520, preventing the inner protrusion 610 from directly contacting the irregular spring 520. At this time, the inner protrusion 610 will not be subjected to force, thus playing a protective role for the inner protrusion 610 and preventing it from breaking. At the same time, it does not affect the sliding of the inner protrusion 610 in the pressing groove 512. The structural design is flexible and ingenious, which not only meets the clamping requirements but also plays a protective role, achieving two goals at once. When the assembly is complete and the fixing component 200 needs to be removed, first rotate the clamping plate 222 around the second central axis to one side to release the restriction on the limiting strip 221. Then rotate the limiting strip 221 around the first central axis to one side to release the restriction on the retaining ring 600. At this time, the entire fixing component 200 can be directly pulled out of the slotted bolt 500, which has a quick-release function. It is also convenient and quick to hold the retaining ring 600, and the operation efficiency is high.

[0069] It should be noted that the inner protrusion 610 of the retaining ring 600 generally has two sets, so the clamping mechanism 220 can also be set with two sets accordingly, and the other related components can also be set with two sets accordingly.

[0070] As an optional implementation, the sidewall and end face of the irregular boss 212 are threaded with positioning bolts 223, which respectively movably pass through the limiting strip 221 and the clamping plate 222.

[0071] In this embodiment, the limiting strip 221 or the clamping plate 222 can be fixed by screwing in the corresponding positioning bolt 223. When disassembly is required, the positioning bolt 223 is loosened to allow a certain amount of space to move, so that the limiting strip 221 or the clamping plate 222 can be rotated freely, thereby realizing the restriction and loosening of the limiting strip 221 and the clamping plate 222 and meeting the requirements for quick disassembly.

[0072] As an optional implementation, the end of the positioning post 232 is provided with a limiting protrusion 234, which is used to cooperate with the inner groove 620 of the retaining ring 600.

[0073] In this embodiment, the end of the positioning post 232 can be engaged with the inner groove 620 of the retaining ring 600 by the limiting protrusion 234. When it is necessary to rotate the inner protrusion 610 of the retaining ring 600 from the pressing groove 512 into the rotating groove 513, and finally into the retaining groove 514, the positioning disk 230 can be manually rotated separately (at this time, the limiting disk 210 remains stationary). The limiting protrusion 234 of the positioning post 232 at one end of the positioning disk 230 applies radial force to the inner groove 620, thereby driving the retaining ring 600 to rotate. The inner protrusion 610 of the retaining ring 600 then smoothly passes through the rotating groove 513 and enters the retaining groove 514, realizing the smooth switching of the inner protrusion 610 of the retaining ring 600 from the pressing groove 512 to the retaining groove 514. The structure is ingeniously designed and meets the assembly requirements.

[0074] As an optional implementation, the end face of the limiting plate 210 near the positioning plate 230 is provided with a fan-shaped boss 213, and the end face of the positioning plate 230 near the limiting plate 210 is provided with a fan-shaped groove 235 that cooperates with the fan-shaped boss 213. The fan-shaped area of ​​the fan-shaped groove 235 is larger than the fan-shaped area of ​​the fan-shaped boss 213.

[0075] In this embodiment, the fan-shaped boss 213 can be a 90° fan shape, and the fan-shaped groove 235 can be a 180° fan shape, so that the limiting plate 210 and the positioning plate 230 form a contact limit. Through the unilateral limit of the fan-shaped boss 213 and the fan-shaped groove 235, the initial position of the retaining ring 600 is determined when it is inserted, so that the inner protrusion 610 of the retaining ring 600 is accurately aligned with the pressing groove 512. When it is necessary to switch the inner protrusion 610 of the retaining ring 600 from the pressing groove 512 to the retaining groove 514, the positioning plate 230 can be rotated independently. Since the fan-shaped area of ​​the fan-shaped groove 235 is larger than the fan-shaped area of ​​the fan-shaped boss 213, it has a certain amount of room for movement and will not drive the limiting plate 210 to rotate. Only the positioning plate 230 rotates independently, thereby realizing the rotation of the retaining ring 600 through the positioning plate 230. The structure is ingeniously designed and can meet the requirements of precise assembly.

[0076] As an optional implementation, the support assembly 100 includes a countersunk screw 110 and a support plate 120. The countersunk screw 110 is disposed on the side wall of the first support rod 320. One end of the support plate 120 is provided with an internal threaded hole 121 that mates with the countersunk screw 110. The other end of the support plate 120 is provided with a polygonal prism 122, which is used to mate with the polygonal inner cavity 515 of the sleeve 510. The polygonal inner cavity 515 is located at the end of the sleeve 510 away from the opening end of the sleeve 510.

[0077] In this embodiment, during assembly, the countersunk screw 110 is threaded onto the side wall of the first support rod 320. The first support rod 320 has a countersunk hole that mates with the countersunk screw 110. After installation, the stud of the countersunk screw 110 extends a portion of the first support rod 320 towards the support plate 120, and the extended portion is threaded into the internal threaded hole 121 of the support plate 120. This allows the support assembly 100 to be assembled and fixed on the first support rod 320. The other end of the support plate 120 engages with the polygonal inner cavity 515 at the end of the sleeve 510 via a polygonal prism 122, providing radial limiting and restricting the rotation of the sleeve 510. Here, the polygonal prism 122 can be a hexagonal prism, ensuring reliable limiting.

[0078] As an optional implementation, the rotating handle 400 includes a threaded rod 410, a movable rod 420, a connector 430, and an operating rod 440. The threaded rod 410 is threaded through the second support rod 330. The movable rod 420 is connected to one end of the threaded rod 410 and is used to movably engage with the movable hole 231. The connector 430 is connected to the other end of the threaded rod 410. The operating rod 440 is vertically connected to the connector 430.

[0079] In this embodiment, when operating the rotating handle 400, the threaded rod 410 is rotated by holding the operating rod 440 and screwed into the second support rod 330, so that the movable rod 420 is in active engagement with the movable hole 231 of the positioning plate 230, and pressure is applied to the positioning plate 230 through the movable rod 420, thereby causing the positioning plate 230 and the front limiting plate 210 to move synchronously in a straight line. The operation is convenient and quick, and it is easy to apply force.

[0080] It should be noted that a ball bearing that mates with the movable rod 420 can be installed in the movable hole 231 for movable connection. When the handle 400 is rotated in the reverse direction to remove the fixed component 200, the fixed component 200 and the handle 400 remain connected for future use. When the handle 400 is screwed in to press the fixed component 200 in, the entire fixed component 200 can be held, preventing the fixed component 200 from rotating due to friction when the movable rod 420 rotates. This ensures that the fixed component 200 can move axially linearly when the movable rod 420 rotates, thus ensuring assembly accuracy.

[0081] As an optional implementation, weight-reducing holes 340 are provided on the connecting rod 310, the first support rod 320 and the second support rod 330, which can reduce the overall weight of the support beam 300 and improve the ease of installation of the retaining ring 600.

[0082] Example 2

[0083] Reference Figures 1-22This embodiment provides a double-wire bolt assembly method, based on the above-described double-wire bolt assembly device, including the following steps:

[0084] Install the slotted bolt 500 at one end of the support assembly 100;

[0085] Insert the retaining ring 600 into the mounting hole 211 of the fixing component 200, and press one end face of the retaining ring 600 by the clamping mechanism 220;

[0086] Align the mounting hole 211 of the fixing component 200 with the retaining ring 600 with the open end of the sleeve 510 and insert it, and make the limiting strip 221 and the inner protrusion 610 of the retaining ring 600 slide into the pressing groove 512 of the sleeve 510 at the same time.

[0087] Rotate the handle 400 to move the fixing assembly 200 in a straight line toward the slotted bolt 500, so that the inner protrusion 610 of the limiting strip 221 and the retaining ring 600 continues to penetrate along the pressing groove 512 of the sleeve 510 and squeeze the irregular spring 520 until the inner protrusion 610 of the retaining ring 600 slides to the position of the rotating groove 513 of the sleeve 510.

[0088] Manually rotate the fixing assembly 200 so that the inner protrusion 610 of the retaining ring 600 rotates and passes through the rotating groove 513 of the sleeve 510 until the inner protrusion 610 of the retaining ring 600 switches into the retaining groove 514 of the sleeve 510.

[0089] Rotate the handle 400 in the opposite direction to remove the fixing component 200 from the slotted bolt 500, so that the retaining ring 600 slides along the retaining groove 514 of the sleeve 510 to the assembly position under the spring action of the shaped spring 520, thus completing the assembly of the shaped spring 520 on the slotted bolt 500 to obtain a double-wire bolt.

[0090] Remove the double-wire bolts from the support assembly 100.

[0091] In this embodiment, the support component 100 can clamp and fix the slotted bolt 500, and then the fixing component 200 clamps the retaining ring 600 in the assembly hole 211. During assembly, the assembly hole 211 of the fixing component 200 is fitted onto the sleeve 510, and the fixing component 200 moves forward along the length of the sleeve 510 to align the inner protrusion 610 of the retaining ring 600 with the pressing groove 512 and embed it. The fixing component 200 continues to move forward along the sleeve 510, while the irregular spring 520 is compressed. During this process, the limiting... The positioning bar 221 can be inserted into the pressing groove 512 simultaneously with the retaining ring 600. During the sliding process of the positioning bar 221 and the retaining ring 600 along the pressing groove 512, the positioning bar 221 serves as the contact point with the shaped spring 520, preventing the inner protrusion 610 from directly contacting the shaped spring 520. At this time, the inner protrusion 610 will not be subjected to force, thus playing a protective role for the inner protrusion 610 and preventing it from breaking. At the same time, it does not affect the sliding of the inner protrusion 610 in the pressing groove 512, which satisfies the clamping requirements and plays a protective role, achieving two goals at once. After the inner protrusion 610 of the retaining ring 600 slides along the pressing groove 512 to the position of the rotating groove 513, the fixing component 200 is rotated, thereby rotating the retaining ring 600 so that the inner protrusion 610 of the retaining ring 600 passes through the rotating groove 513 and enters the retaining groove 514. At this time, the fixing component 200 is removed to release the clamping restriction on the retaining ring 600. Under the spring return action of the profiled spring 520, the retaining ring 600 slides along the corresponding direction of the retaining groove 514 to the assembly position (i.e., the retaining groove 514 is close to the opening of the sleeve 510). (At the end of the end direction), the inner protrusion 610 of the retaining ring 600 finally stops in the retaining groove 514, completing the assembly of the irregular spring 520 on the slotted bolt 500, and obtaining the finished double-wire bolt. Finally, the double-wire bolt can be removed from the support assembly 100. In this embodiment, the support assembly 100 and the fixing assembly 200 are used for auxiliary assembly. During assembly, the retaining ring 600 is subjected to uniform force, which can be quickly and accurately positioned. Compared with pure manual assembly, the assembly efficiency is greatly improved, while ensuring the assembly quality.

[0092] As an optional implementation, removing the fixing component 200 from the slotted bolt 500 includes:

[0093] Rotate the card plate 222 to one side along the end face of the irregular protrusion 212 to release the card plate 222 from the restriction of the limiting strip 221;

[0094] Rotate the limiting strip 221 to one side along the side wall of the irregular boss 212 to release the limiting strip 221 from restricting the retaining ring 600;

[0095] The slotted bolt 500 is removed from the entire fixing assembly 200 that releases the circlip 600.

[0096] In this embodiment, when the assembly is completed and the fixing component 200 needs to be removed from the slotted bolt 500, the clamping plate 222 is first rotated to one side around the second central axis to release the restriction on the limiting strip 221. Then, the limiting strip 221 is rotated to one side around the first central axis to release the restriction on the retaining ring 600. At this time, the entire fixing component 200 can be directly pulled out of the slotted bolt 500, thus achieving a quick disassembly function and high operating efficiency.

[0097] The above are merely preferred embodiments of this application and do not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. A double-bolt assembly device, characterized in that, include: A support assembly for clamping a slotted bolt; wherein the slotted bolt includes a sleeve with one open end, a receiving cavity communicating with the opening, strip-shaped press-in groove and retaining groove respectively formed on the side wall of the sleeve along the axial direction of the sleeve, the press-in groove communicating with the opening, a rotating groove perpendicularly communicating between the press-in groove and the retaining groove, the press-in groove, the retaining groove and the rotating groove all communicating with the receiving cavity, and a shaped spring provided in the receiving cavity, one end of the shaped spring protruding out of the press-in groove; A fixing component is provided for clamping a retaining ring. One end of the fixing component has a mounting hole that mates with the sleeve, and the retaining ring is located within the mounting hole. The retaining ring has an inner protrusion on its inner wall. The fixing component is also used to align the inner protrusion with the pressing groove to fit the retaining ring onto the sleeve. Furthermore, the fixing component is used to rotate the retaining ring so that the inner protrusion passes through the rotating groove and enters the retaining groove. A support beam, the support beam including a connecting rod, the two ends of the connecting rod being vertically connected to a first support rod and a second support rod respectively, and the support assembly being detachably connected to the side wall of the first support rod near the second support rod; The handle is threaded through the second support rod and movably connected to one end of the fixing component. The handle is used to apply vertical pressure to the fixing component. The fixing component includes: a limiting plate, with the mounting hole penetrating the limiting plate; a clamping mechanism disposed on the end face of the limiting plate, the clamping mechanism being used to press the retaining ring into the mounting hole; a positioning plate, one end of the positioning plate having a movable hole that mates with the rotating handle, and the other end of the positioning plate being connected to a positioning post, the positioning post being used to extend from the end of the limiting plate away from the clamping mechanism into the mounting hole to press the retaining ring, the positioning post having an clearance hole that mates with the open end of the sleeve; the end face of the limiting plate is provided with a shaped boss, and the clamping mechanism is provided with... On the irregularly shaped protrusion, the clamping mechanism includes: a limiting strip, which is rotatably connected to the side wall of the irregularly shaped protrusion and is used to press against the inner protrusion of the retaining ring. The limiting strip is rotatable about a first central axis and can extend into the pressing groove; wherein, the first central axis is an axis perpendicular to the central axis of the limiting plate; and a clamping plate, which is rotatably connected to the end face of the irregularly shaped protrusion and is used to press against the limiting strip at one end. The clamping plate is rotatable about a second central axis; wherein, the second central axis is an axis parallel to the central axis of the limiting plate. The support assembly includes: a countersunk screw disposed on the side wall of the first support rod; a support plate having an internal threaded hole at one end that mates with the countersunk screw, and a polygonal prism at the other end of the support plate for mates with the polygonal inner cavity of the sleeve; wherein the polygonal inner cavity is located at the end of the sleeve away from the opening end of the sleeve.

2. The double-bolt assembly device as described in claim 1, characterized in that, The sidewall and end face of the irregularly shaped boss are both threaded with positioning bolts, which respectively movably pass through the limiting strip and the clamping plate.

3. The double-line bolt assembly device as described in claim 1, characterized in that, The end of the positioning post is provided with a limiting protrusion, which is used to cooperate with the inner groove of the retaining ring.

4. The double-line bolt assembly device as described in claim 3, characterized in that, The end face of the limiting plate near the positioning plate is provided with a fan-shaped protrusion, and the end face of the positioning plate near the limiting plate is provided with a fan-shaped groove that cooperates with the fan-shaped protrusion. The fan-shaped area of ​​the fan-shaped groove is larger than the fan-shaped area of ​​the fan-shaped protrusion.

5. The double-bolt assembly device as described in claim 1, characterized in that, The rotating handle includes: A threaded rod, wherein the threaded rod is threaded through the second support rod; A movable rod is connected to one end of the threaded rod and is used to movably engage with the movable hole. A connector, which is connected to the other end of the threaded rod; An operating lever, which is vertically connected to the connector.

6. The double-line bolt assembly device as described in claim 1, characterized in that, The connecting rod, the first support rod, and the second support rod are all provided with weight-reducing holes.

7. A method for assembling double-wire bolts, characterized in that, A double-bolt assembly device according to any one of claims 1-6 includes the following steps: Install the slotted bolt at one end of the support assembly; Insert the retaining ring into the mounting hole of the fixing component, and press one end face of the retaining ring with the clamping mechanism; Align the mounting hole of the fixing component with the retaining ring with the open end of the sleeve and insert it, and simultaneously slide the limiting strip and the inner protrusion of the retaining ring into the pressing groove of the sleeve. Rotate the rotating handle to move the fixing component in a straight line toward the slotted bolt, so that the inner protrusion of the limiting strip and the retaining ring continues to penetrate along the pressing groove of the sleeve and squeezes the irregular spring until the inner protrusion of the retaining ring slides to the position of the rotating groove of the sleeve. Manually rotate the fixing assembly so that the inner protrusion of the retaining ring rotates and passes through the rotating groove of the sleeve until the inner protrusion of the retaining ring switches into the retaining groove of the sleeve; Rotate the rotating handle in the opposite direction to remove the fixing component from the slotted bolt, so that the retaining ring slides along the retaining groove of the sleeve to the assembly position under the rebound action of the shaped spring, thereby completing the assembly of the shaped spring on the slotted bolt to obtain a double-wire bolt; Remove the double-wire bolt from the support assembly.

8. The double-bolt assembly method as described in claim 7, characterized in that, Removing the fixing component from the slotted bolt includes: Rotate the card plate to one side along the end face of the irregular protrusion to release the card plate from the restriction of the limiting strip; Rotate the limiting strip along the side wall of the irregular boss to one side to release the limiting strip from restricting the retaining ring; The slotted bolt is removed from the entire fixing assembly that has released the retaining ring.

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