Convex-head rivet disassembling device with limiting function
Through the design of limit adjustment mechanism and rivet positioning block, the problem of the protruding rivet decomposition device relies on the operator's experience, and the precise control of the drilling depth and debris discharge is achieved, which improves the quality and efficiency of rivet decomposition.
Patent Information
- Application Number
- CN202421932941.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-09
- Publication Date
- 2025-08-19
- Estimated Expiration
- 2034-08-09
AI Technical Summary
The existing convex rivet decomposition devices rely on the experience of operators, making it difficult to accurately control the drilling depth and central position, and easily damage the peripheral structure and hole wall of the rivet head.
A convex rivet decomposition device with limit function is designed, and the expansion and contraction length of the drill bit is adjusted through the limit adjustment mechanism, combining the rivet positioning block and the variable diameter drill bit hole to achieve precise control of the drill bit depth and effective discharge of debris.
Accurate control of the rivet decomposition process is achieved, damage to the axial structure of the rivet is reduced, the quality and efficiency of decomposition are improved, and the dependence on operator skills is reduced.
Smart Images
Figure CN223234992U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of aircraft manufacturing, in particular to a protruding head rivet disassembly device with a limiting function. Background Art
[0002] Existing devices for disassembling protruding head rivets typically use a drill bit selected based on the rivet diameter. The drill bit then pokes a dot at the center of the rivet head. The operator then drills from the rivet head toward the push rod, based on their individual skill level. Drilling stops around the upper surface of the rivet interlayer, and the operator then taps the rivet head area to separate the rivet head and shank, completing the rivet disassembly process. Conventional operations rely heavily on the operator's experience and proficiency, and poor control of the drilling depth and centering can easily damage the surrounding structure of the rivet head and the rivet hole wall, causing irreversible damage to the structure. Therefore, designing a rivet disassembly device that can simultaneously control the rivet disassembly drilling depth and ensure the drilling center is particularly important. Utility Model Content
[0003] The main purpose of the utility model is to provide a protruding head rivet disassembly device with a limiting function to control the depth of the drill bit of the disassembly device when disassembling the rivet, so as not to damage the structural components in the axial direction of the rivet.
[0004] To achieve the above-mentioned purpose, the present invention provides a protruding head rivet disassembly device with a limiting function, comprising:
[0005] The main body of the cylinder wall structure is a hollow cylindrical structure with a threaded outer wall, a drill bit holder through hole at one end and a drill bit holder limiting boss at the other end;
[0006] The drill bit holder is movably mounted in the cylinder wall structure. A tool handle is provided at one end of the drill bit holder, and a drill bit connection hole structure is provided at the other end. The bottom surface of the drill bit connection hole has a boss facing outward along the hole diameter direction, which is used to limit the position of the drill bit holder during the up and down adjustment process;
[0007] The clamp compression spring is fitted to the inner wall of the cylinder wall structure and is movably installed between the drill bit holder and the cylinder wall structure;
[0008] a limit adjustment mechanism mounted on the outer wall of the cylinder, the limit adjustment mechanism being capable of adjusting the telescopic length of the drill bit relative to the limit adjustment mechanism to control the depth of the drill bit when disassembling the rivet;
[0009] A drill bit, with a cutter head at one end and a boss and thread at the other end, connected to the drill bit connection structure of the drill bit holder by screw connection;
[0010] The rivet positioning block is a solid cylindrical structure with a convex rivet head placement hole in the middle.
[0011] In some possible implementations, an adjusting ring is provided on one end of the limit adjustment mechanism, and a thread is provided on the inner wall; a sliding sleeve is provided at the middle end of the limit adjustment mechanism, and a sleeve compression spring is provided between the adjusting ring and the sliding sleeve; a limit sleeve is provided at the end of the limit adjustment mechanism, and a thread is provided on the inner wall.
[0012] In some possible implementations, the adjusting ring is threadedly mounted on the outer wall of the cylindrical wall structure and is a sleeve with a T-shaped cross-section.
[0013] In some possible implementations, one end of the sliding sleeve is a smooth circular surface, which is sleeved on the outer wall of the adjusting rotary ring, and the other end is a circumferential serrated structure, the diameter of which shrinks toward the center of the circle, which is sleeved on the outer wall of the cylindrical wall structure. The sleeve compression spring can be movably compressed between the adjusting rotary ring and the circumferential serrated structure end of the sliding sleeve.
[0014] In some possible implementation methods, the limiting sleeve is sleeved on the outer wall of the cylindrical wall structure by means of a threaded connection, one end of which is a circumferential serrated structure and the other end is a smooth round surface. Two slots are provided in the middle section of the structure. When the limit adjustment mechanism adjusts the limit position, the serrated end of the sliding sleeve engages with the serrated end of the limiting sleeve.
[0015] In some possible implementations, after the installation position of the limiting sleeve is adjusted into place, the adjusting rotary ring can drive the sliding sleeve to press the position of the limiting sleeve.
[0016] In some possible implementations, the rivet positioning block is screwed into the bottom of the limiting sleeve by a threaded connection, and the rivet head placement hole is a variable diameter structure, with a small hole diameter at the end close to the rivet head and a large hole diameter at the end away from the rivet head.
[0017] In some possible implementations, the rivet positioning block is provided with two slots at the bottom to facilitate installation of the rivet positioning block in the limiting sleeve.
[0018] Compared to the prior art, the present invention has the following beneficial effects: a protruding head rivet disassembly device with a position-limiting function uses an adjustment mechanism to adjust the telescopic length of a drill bit relative to the bottom surface of the position-limiting mechanism to control the depth of the drill bit carried by the disassembly device when disassembling the rivet, thereby reducing the risk of damaging structural components in the axial direction of the rivet and providing overall simple and convenient operation. Furthermore, the position-limiting mechanism is provided with a protruding head rivet positioning block having a variable-diameter drill hole therein, which reduces the risk of damaging structural components in the axial direction of the rivet. Furthermore, debris generated during rivet disassembly can be discharged through the variable-diameter drill hole and the slot provided on the position-limiting mechanism, without relying on the operator's experience and proficiency. Ultimately, the problem of accidental structural damage that is prone to occurring when disassembling protruding head rivets with a drill bit is eliminated, thereby improving assembly efficiency and rivet disassembly quality. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.
[0020] Figure 1 A schematic diagram of the main structure of a protruding head rivet disassembly device with a limiting function provided by an embodiment of the utility model;
[0021] Figure 2 A side view of a protruding head rivet disassembly device with a limiting function provided by an embodiment of the present utility model;
[0022] Figure 3 A cross-sectional structural diagram of a protruding head rivet disassembly device with a limiting function provided by an embodiment of the present utility model;
[0023] Figure 4 This is a structural schematic diagram of a protruding head rivet disassembly device with a limiting function provided by another embodiment of the present invention.
[0024] Among them, there are drill bit holder 1, cylinder wall structure 2, adjusting ring 3, sliding sleeve 4, sleeve compression spring 5, holder compression spring 6, limit sleeve 7, drill bit 8, rivet limit block 9, slide groove 10, drill bit mounting hole 11, limit sleeve slot 12, rivet positioning block slot 13, rivet positioning hole 14, interlayer 15, and protruding head rivet 16. DETAILED DESCRIPTION
[0025] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention. In the following, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present invention, unless otherwise specified, "multiple" means two or more.
[0026] Reference Figures 1 to 3As shown, the present application provides a convex head rivet disassembly device with a limiting function, including a cylindrical wall structure 2, a drill bit holder 1, an adjusting ring 3, a sliding sleeve 4, a sleeve compression spring 5, a holder compression spring 6, a limiting sleeve 7, a drill bit 8, and a rivet limiting block 9; the drill bit holder 1 and the holder compression spring 6 move inside the cylindrical wall structure 2, the holder 1 presses the holder compression spring 6, and the compression spring is close to the inner wall of the cylindrical wall structure 2 and pressed on the bottom of the cylindrical wall structure 2; the limiting boss on the cylindrical wall structure 2 and the boss on the drill bit holder 1 limit the drill bit holder 1 to move inside the cylindrical wall structure.
[0027] Reference Figures 1 to 3 As shown, the limit adjustment mechanism includes an adjusting ring 3, a sliding sleeve 4, a sleeve compression spring 5, and a limit sleeve 7; the adjusting ring 3 is sleeved on the outer wall of the cylindrical wall structure 2 and is connected to it by a thread, the sliding sleeve 4 is sleeved on the outer wall side of the adjusting ring 3, and a sleeve compression spring 5 is provided between the adjusting ring 3 and the sliding sleeve 4, which moves in the slide groove 10, and the limit sleeve 7 is sleeved on the other end of the outer wall of the cylindrical wall structure 2 and is connected to it by a thread.
[0028] Reference Figures 1 to 4 As shown, the drill bit 8 is fixed to the drill bit holder 1 by a threaded connection and installed in the drill bit mounting hole 11. The rivet limit block 9 is connected to the limit sleeve 7 by a threaded connection. The rivet limit block 9 is provided with two rivet positioning block slots 13. The installation of the rivet limit block 9 and the limit sleeve 7 is completed by manually turning the knob.
[0029] Specifically, in the above-mentioned embodiment, the rivet positioning hole 14 provided in the rivet limiting block 9 is a variable diameter through hole, one end of which is basically the same size as the rivet head, and the aperture of the other end is larger than the diameter of the rivet head. Its main purpose is to locate the position of the rivet head, limit the shaking of the drill bit, and discharge debris at the same time. Two limiting sleeve slots 12 are provided on the limiting sleeve 7. Its main purpose is to discharge the debris discharged from the rivet positioning hole 14 out of the entire rivet disassembly device, to ensure that the decomposed debris will not cause secondary damage to the structure, and to improve the quality of rivet disassembly.
[0030] The convex head rivet disassembly device with a limiting function provided by the utility model adjusts the telescopic length of the drill bit relative to the bottom surface of the limiting mechanism through the limit adjustment mechanism to control the depth of the drill bit carried by the disassembly device when disassembling the rivet; the telescopic length of the limit sleeve 7 relative to the drill bit is adjusted according to the height of the rivet head, the position of the limit sleeve 7 is determined, the sliding sleeve 4 and the limit sleeve 7 are engaged through the serrations, the adjusting ring 3 is rotated, and the sleeve compression spring 5 is slowly pressed to lock the entire set of limit adjustment mechanisms. Here, the sliding sleeve 4 and the limit sleeve 7 are engaged through the serrations and the sleeve compression spring 5 is compressed to better limit the rotation of the limit sleeve when the rivet is disassembled, thereby ensuring that the telescopic length of the drill bit relative to the bottom surface of the limit mechanism does not change.
[0031] See also Figure 4 In actual use, after adjusting the rotating ring 3, the sliding sleeve 4 and the limiting sleeve 7 to determine the telescopic length of the drill bit 8 relative to the bottom surface of the limiting mechanism, the rivet disassembly device can be placed on the rivet limiting block 9 and put on the structural rivet 16 to complete the positioning and limiting of the rivet, and then the rivet disassembly work can be carried out.
[0032] The above structural design is relatively simple in structure and easy to operate. The limit adjustment process can achieve infinite adjustment with a wide adjustment range. At the same time, it can discharge debris, and ultimately eliminate the problem of accidental structural damage that is easy to occur when using a drill to decompose the protruding head rivet.
[0033] The above specific implementation methods or cases are only used to explain the technical solutions of the present invention, and are not intended to limit the present invention. Any parts not described in detail are regarded as conventional technical means in the field. Those skilled in the art should understand that based on the design concept of this application, the technical solutions described in the aforementioned implementation methods can be adaptively modified, or some or all of the technical features therein can be replaced by equivalents. These modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the various embodiments of the present invention.
Claims
1. A convex head rivet disassembly device with a limiting function, characterized in that: include: The main body of the cylinder wall structure is a hollow cylindrical structure with a threaded outer wall, a drill bit holder through hole at one end and a drill bit holder limiting boss at the other end; A drill bit holder is movably mounted in the cylinder wall structure. A tool handle is provided at one end of the drill bit holder, and a drill bit connection hole structure is provided at the other end. The bottom surface of the drill bit connection hole has a boss facing outward along the hole diameter direction, which is used to limit the position of the drill bit holder during the up and down adjustment process; The clamp compression spring is fitted to the inner wall of the cylinder wall structure and is movably installed between the drill bit holder and the cylinder wall structure; a limit adjustment mechanism mounted on the outer wall of the cylinder, the limit adjustment mechanism being capable of adjusting the telescopic length of the drill bit relative to the limit adjustment mechanism to control the depth of the drill bit when disassembling the rivet; A drill bit, with a cutter head at one end and a boss and thread at the other end, connected to the drill bit connection structure of the drill bit holder by screw connection; The rivet positioning block is a solid cylindrical structure with a convex rivet head placement hole in the middle.
2. The device for disassembling a convex rivet with a limiting function according to claim 1, characterized in that: An adjusting rotary ring is provided on one end of the limit adjustment mechanism, and a thread is provided on the inner wall; a sliding sleeve is provided at the middle end of the limit adjustment mechanism, and a sleeve compression spring is provided between the adjusting rotary ring and the sliding sleeve; a limit sleeve is provided at the end of the limit adjustment mechanism, and a thread is provided on the inner wall. After the installation position of the limit sleeve is adjusted into place, the adjusting rotary ring can drive the sliding sleeve to press the position of the limit sleeve.
3. The device for disassembling a convex rivet with a limiting function according to claim 2, characterized in that: The adjusting rotary ring is sleeved on the outer wall of the cylinder wall structure by means of a threaded connection, and has a T-shaped cross-section.
4. The device for disassembling a convex rivet with a limiting function according to claim 2, characterized in that: One end of the sliding sleeve is a smooth circular surface, which is sleeved on the outer wall of the adjusting rotary ring, and the other end is a circumferential serrated structure, the diameter of which shrinks toward the center of the circle, and is sleeved on the outer wall of the cylindrical wall structure. The sleeve compression spring can be movably compressed between the adjusting rotary ring and the circumferential serrated structure end of the sliding sleeve.
5. The device for disassembling a convex rivet with a limiting function according to claim 2, characterized in that: The limiting sleeve is sleeved on the outer wall of the cylindrical wall structure by means of a threaded connection. One end is a circumferential serrated structure and the other end is a smooth round surface. Two slots are provided in the middle section of the structure. When the limit adjustment mechanism adjusts the limit position, the serrated end of the sliding sleeve and the serrated end of the limiting sleeve are constantly engaged.
6. The device for disassembling a convex rivet with a limiting function according to claim 1, characterized in that: The rivet positioning block is screwed into the bottom of the limiting sleeve by means of a threaded connection. The rivet head placement hole is a variable diameter structure, with a small hole diameter at one end close to the rivet head and a large hole diameter at one end away from the rivet head.
7. The device for disassembling a convex rivet with a limiting function according to claim 6, characterized in that: The bottom of the rivet positioning block is provided with two slots to facilitate the installation of the rivet positioning block in the limiting sleeve.