Blind rivet removing equipment

Abstract

The utility model discloses self-plugging rivet removing equipment, and relates to the technical field of machining equipment. The self-plugging rivet removing equipment comprises a multi-stage decomposition drill bit, wherein the multi-stage decomposition drill bit comprises a central drill rod section and a reaming drill rod section; the tail end of the reaming drill rod section is used for being inserted into a drilling tool, and the tail end of the center drill rod section is fixedly connected to the head end of the reaming drill rod section. The center line of the center drill rod section coincides with the center line of the reaming drill rod section, the diameter of the center drill rod section is smaller than that of the reaming drill rod section, the center drill rod section is used for drilling a center hole in the center of the drill rod, and the reaming drill rod section is used for removing a locking ring and decomposing a nail rod and a nail sleeve. By using the self-plugging rivet removing equipment, the repairing efficiency of a riveted joint is effectively improved.

Description

Technical Field

[0001] This application relates to the field of processing equipment technology, and more specifically, to a device for removing blind rivets. Background Technology

[0002] Because blind rivets with locking rings are easy to use and can be installed and riveted on one side only, they offer high reliability. Composite material vehicles often use blind rivets extensively for connections, especially in the connection of roof, chassis, side walls, and end walls to form a hexahedron, and for the installation of parts and the assembly of internal functional components after the hexahedron is assembled.

[0003] Blind rivets typically include two types: countersunk rivets and convex rivets. The basic structures of the two types of blind rivets are similar. Countersunk rivets are used when the surface after riveting requires flatness, such as the outer side surface of a vehicle; convex rivets are used when the surface after riveting does not require flatness, such as the installation of parts inside and under the vehicle and the connection of large components.

[0004] In actual construction, it is inevitable that substandard riveted joints will occur after riveting is completed. For poorly riveted areas, it is usually necessary to repair the riveted joint, that is, replace it with a new blind rivet for reinstallation. Before repair, it is always necessary to remove the substandard blind rivet. Removing the blind rivet is the most critical step in the entire repair process. The blind rivet structure mainly consists of a rivet shank, a rivet sleeve, a rivet head, and a locking structure. The entire removal process has six steps: drilling the center hole, drilling the rivet shank, drilling the rivet shank, drilling the rivet head, removing the rivet head, and removing the rivet sleeve. It is necessary to use three different types of drill bits to drill the center hole, drill the rivet shank, and drill the rivet sleeve three times, and use two types of punches to remove the rivet shank and rivet sleeve twice. The blind rivet removal process is cumbersome and the repair efficiency is low.

[0005] In conclusion, how to improve the efficiency of riveted joint repair is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0006] In view of this, the purpose of this application is to provide a blind rivet removal device, which can effectively improve the repair efficiency of riveted joints.

[0007] To achieve the above objectives, this application provides the following technical solution:

[0008] A core-pulling rivet removal device includes: a multi-stage decomposition drill bit, wherein the multi-stage decomposition drill bit includes a central drill rod section and a reaming drill rod section;

[0009] The tail end of the reaming drill rod section is used to be inserted into the drilling tool, and the tail end of the center drill rod section is fixedly connected to the head end of the reaming drill rod section.

[0010] The centerline of the central drill rod section coincides with the centerline of the reaming drill rod section, and the diameter of the central drill rod section is smaller than the diameter of the reaming drill rod section. The central drill rod section is used to drill a central hole at the center of the drill rod, and the reaming drill rod section is used to remove the locking ring and disassemble the nail rod and nail sleeve.

[0011] Preferably, the reaming drill rod section includes a primary reaming drill rod section and a secondary reaming drill rod section;

[0012] The tail end of the secondary reaming drill rod section is used to be inserted into the drill bit, the tail end of the primary reaming drill rod section is fixedly connected to the head end of the secondary reaming drill rod section, and the tail end of the center drill rod section is fixedly connected to the head end of the primary reaming drill rod section.

[0013] Furthermore, the diameter of the secondary reaming drill rod section is larger than the diameter of the primary reaming drill rod section, and the diameter of the primary reaming drill rod section is larger than the diameter of the central drill rod section.

[0014] Preferably, the multi-stage decomposition drill bit is an integral structural component;

[0015] Alternatively, the central drill rod section, the primary reaming drill rod section, and the secondary reaming drill rod section may be welded sequentially.

[0016] Preferably, the core-pulling rivet removal device further includes a handheld drill, which includes a mounting housing, a positioning base, a drive assembly, and a handle;

[0017] The drive assembly is located inside the mounting housing shown, and a handle is provided on the outer side of the mounting housing;

[0018] The positioning base is located at the bottom of the mounting housing. The positioning base has a processing channel. The multi-stage decomposition drill bit is connected to the output end of the drive assembly and is movably inserted into the processing channel. The mounting housing is movably located on the positioning base, and the moving direction of the mounting housing is parallel to the centerline direction of the multi-stage decomposition drill bit.

[0019] Furthermore, the bottom surface of the positioning base is a contoured surface, used to fit against the surface of the workpiece being connected in the riveting joint, so that the multi-stage decomposition drill bit extends along the center line direction of the core-pulling rivet.

[0020] Preferably, the positioning base includes a base body and a plurality of positioning supports. The base body is connected to the bottom of the mounting housing, and the bottom surfaces of the plurality of positioning supports are all the contoured surfaces. The plurality of positioning supports can be selectively connected to the bottom of the base body.

[0021] Preferably, the handheld drill further includes a damping assembly and a connector. The base body and the connector are connected by the damping assembly. The processing channel extends vertically through the base body. The bottom of the mounting housing has a guide post. The guide post is fixedly connected to the connector and slidably fitted to the base body. The damping assembly is used to drive the connector to move toward the side away from the base body.

[0022] Preferably, the damping assembly includes two damping compression rods, two damping springs, and two limiting nuts;

[0023] The connector has a through-hole, and the guide post passes through the through-hole;

[0024] The base body has two limiting channels, which are distributed on both sides of the guide post;

[0025] The bottom ends of the two damping compression rods are inserted into the corresponding limiting channels, and the middle section of the length of the damping compression rod passes through the connector;

[0026] The two limiting nuts are threadedly connected to the top of the corresponding damping compression rod;

[0027] Two damping springs are inserted into the corresponding limiting channels, with the bottom end of the damping spring connected to the base body and the top end connected to the corresponding damping compression rod.

[0028] Preferably, the handheld drill bit further includes a positioning laser generator, which is located on the side wall of the processing channel and is used to generate a cross laser whose center point coincides with the center line of the multi-stage decomposition drill bit.

[0029] Preferably, the handheld drill further includes a controller, which is signal-connected to the drive assembly and the positioning laser generator, for receiving the positioning result from the positioning laser generator and controlling the operation of the drive assembly.

[0030] Preferably, the handle is equipped with a gear control button, a touch screen, and a power switch;

[0031] The gear control key signal is connected to the controller and is used to control the speed of the drive component;

[0032] The touchscreen is connected to the controller and is used to input control signals into the controller;

[0033] The switch is electrically connected to the drive assembly and the controller, and is used to control the power on or off.

[0034] In this application, the multi-stage decomposition drill bit adopts a variable diameter drill bit. The upper end of the reaming drill rod section is used to cooperate with the drilling tool to drive the multi-stage decomposition drill bit to rotate. The upper end of the center drill rod section is fixedly connected to the lower end of the reaming drill rod section. The center line of the center drill rod section coincides with the center line of the reaming drill rod section, and the diameter of the center drill rod section is smaller than the diameter of the reaming drill rod section. Under the drive of the drilling tool, the drilling of the center hole and the reaming can be completed by a single continuous feed of the multi-stage decomposition drill bit.

[0035] When using a multi-stage split drill bit, the core-pulling rivet can be disassembled in one feed and retraction operation, and the rivet shank and sleeve can be completely ejected in one ejection and retraction operation. In summary, when using a multi-stage split drill bit to remove core-pulling rivets, the removal process only involves two steps: rivet disassembly and rivet ejection, effectively simplifying the core-pulling rivet removal process. Compared with related technologies, the efficiency of using a multi-stage split drill bit for riveted joint repair is higher. Attached Figure Description

[0036] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this application. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0037] Figure 1 This is a schematic diagram of the process for removing blind rivets in the prior art;

[0038] Figure 2 This is a structural diagram of a countersunk rivet in the prior art;

[0039] Figure 3 This is a schematic diagram of the structure of a convex head rivet in the prior art;

[0040] Figure 4 An exploded view of a three-stage decomposition drill bit according to a specific embodiment provided in this application;

[0041] Figure 5 A schematic diagram of the structure of a three-stage decomposition drill bit according to a specific embodiment provided in this application;

[0042] Figure 6 A schematic diagram illustrating the process of removing countersunk rivets using a three-stage decomposition drill bit, as provided in the specific embodiments of this application;

[0043] Figure 7 A schematic diagram illustrating the process of removing a convex rivet using a three-stage decomposition drill bit, as provided in a specific embodiment of this application;

[0044] Figure 8 An exploded view of a second-order decomposition drill bit according to a specific embodiment provided in this application;

[0045] Figure 9 A schematic diagram of the structure of a second-order decomposition drill bit according to a specific embodiment provided in this application;

[0046] Figure 10 A schematic diagram illustrating the process of removing countersunk rivets using a second-order decomposition drill bit, as provided in a specific embodiment of this application;

[0047] Figure 11 A schematic diagram illustrating the usage structure of a handheld drilling tool according to a specific embodiment provided in this application;

[0048] Figure 12 A forward oblique projection view of the overall structure of the handheld drilling tool provided in the specific embodiments of this application;

[0049] Figure 13 A reverse oblique projection view of the overall structure of the handheld drilling tool provided in the specific embodiments of this application;

[0050] Figure 14 A cross-sectional view of a handheld drill bit according to a specific embodiment provided in this application;

[0051] Figure 15 A schematic diagram of laser positioning for a handheld drill bit provided in a specific embodiment of this application;

[0052] Figure 16 A schematic diagram of the support base for a handheld drill bit according to a specific embodiment provided in this application;

[0053] Figure 17 Another structural schematic diagram of the support base for the handheld drill bit provided in the specific embodiments of this application;

[0054] Figure 18 Another structural schematic diagram of the support base of the handheld drill bit provided in the specific embodiments of this application;

[0055] Figure 19 A flowchart illustrating the control method of a handheld drill bit according to a specific embodiment provided in this application.

[0056] Figure label:

[0057] 1-Pull rivet; 11-Locking ring; 12-Rivet sleeve; 13-Rivet rod; 2-Multi-stage decomposition drill bit; 21-Center drill rod section; 22-Reamer drill rod section; 221-Primary reamer drill rod section; 222-Secondary reamer drill rod section; 3-Handheld drill tool; 31-Mounting housing; 311-Guide post; 32-Positioning base; 321-Base body; 3211-Machining channel; 322-Positioning support; 323-Observation window; 3231-Suction tube interface; 33-Handle; 34-Damping assembly; 341-Damping compression rod; 342-Damping spring; 343-Limit nut; 35-Positioning laser generator; 36-Gear control key; 37-Touch screen; 38-Machine switch; 39-Connector. Detailed Implementation

[0058] 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 some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0059] It should be noted that, currently, Figure 2 The image shows the countersunk rivet mentioned above. Figure 3 The above-mentioned convex head rivet is shown. Both types of blind rivets include a locking ring 11, a rivet sleeve 12, and a rivet shank 13. The rivet sleeve 12 consists of its own head and a rivet sleeve body, and the rivet sleeve 12 and the rivet shank 13 are connected by the locking ring 11. To remove the blind rivet 1, as shown... Figure 1 As shown, the current removal process includes six steps: drilling the center hole, drilling the nail rod, drilling the nail rod, drilling the nail head, removing the nail head, and removing the nail sleeve.

[0060] The core of this application is to provide a device for removing blind rivets, which effectively improves the repair efficiency of riveted joints.

[0061] This application provides a core-pulling rivet removal device, including a multi-stage disassembly drill bit 2, which includes a central drill rod section 21 and a reaming drill rod section 22. The tail end of the reaming drill rod section 22 is used to be inserted into the drill bit, and the tail end of the central drill rod section 21 is fixedly connected to the head end of the reaming drill rod section 22. The center line of the central drill rod section 21 coincides with the center line of the reaming drill rod section 22, and the diameter of the central drill rod section 21 is smaller than the diameter of the reaming drill rod section 22. The central drill rod section 21 is used to drill a central hole at the center of the drill rod, and the reaming drill rod section 22 is used to remove the locking ring 11 and disassemble the rivet rod 13 and the rivet sleeve 12.

[0062] refer to Figure 4 , Figure 5 , Figure 8 and Figure 9 As explained, the multi-stage decomposition drill bit 2 is a variable diameter drill bit. The upper end of the reaming drill rod section 22 is used to cooperate with the drilling tool to drive the multi-stage decomposition drill bit 2 to rotate. The upper end of the center drill rod section 21 is fixedly connected to the lower end of the reaming drill rod section 22. The center line of the center drill rod section 21 coincides with the center line of the reaming drill rod section 22, and the diameter of the center drill rod section 21 is smaller than the diameter of the reaming drill rod section 22. Therefore, under the drive of the drilling tool, the drilling of the center hole and the reaming of the hole can be completed by the continuous one-time feed of the multi-stage decomposition drill bit 2.

[0063] When using the multi-stage disassembly drill bit 2, the disassembly of the core-pulling rivet 1 can be completed with a single feed and retraction operation, and the rivet shank 13 and rivet sleeve 12 can be completely punched out with a single punching and retraction operation. Figure 6 , Figure 7 and Figure 10 As shown in A5 and A6, in summary, when using the multi-stage disassembly drill bit 2 to remove the core-pulling rivet 1, the removal process only involves two steps: rivet disassembly and rivet ejection, effectively simplifying the process of removing the core-pulling rivet 1. Compared with related technologies, the multi-stage disassembly drill bit 2 has a higher efficiency in repairing riveted joints.

[0064] Based on the above embodiments, the reaming drill rod section 22 includes a primary reaming drill rod section 221 and a secondary reaming drill rod section 222; the tail end of the secondary reaming drill rod section 222 is used to be inserted into the drill bit, the tail end of the primary reaming drill rod section 221 is fixedly connected to the head end of the secondary reaming drill rod section 222, and the tail end of the center drill rod section 21 is fixedly connected to the head end of the primary reaming drill rod section 221; and the diameter of the secondary reaming drill rod section 222 is larger than the diameter of the primary reaming drill rod section 221, and the diameter of the primary reaming drill rod section 221 is larger than the diameter of the center drill rod section 21.

[0065] refer to Figure 4 and Figure 5 As explained, the multi-stage decomposition drill bit 2 adopts a three-stage decomposition drill bit, that is, the reaming drill rod section 22 adopts a two-section structure, namely, the reaming drill rod section 222 includes a primary reaming drill rod section 221 and a secondary reaming drill rod section 222. The secondary reaming drill rod section 222, the primary reaming drill rod section 221 and the center drill rod section 21 are connected sequentially from top to bottom, and the center lines of the secondary reaming drill rod section 222, the primary reaming drill rod section 221 and the center drill rod section 21 all coincide. The diameters of the secondary reaming drill rod section 222, the primary reaming drill rod section 221 and the center drill rod section 21 decrease sequentially.

[0066] When using, such as Figure 6 and Figure 7 As shown, the process of removing the drill to disassemble the pop rivet 1 is divided into four stages:

[0067] The first stage involves placing the lower end of the center drill rod section 21 against the center of the drill rod of the core-pulling rivet 1 to complete the drilling of the center hole, thus preparing for the positioning using the reaming drill rod section 22. Figure 6 and Figure 7 As shown in A1;

[0068] The second stage involves continuing to drive the multi-stage decomposition drill bit 2 to rotate, pushing it deeper until the primary reaming drill rod section 221 abuts against the head of the nail rod 13. During this process, the central drill rod section 21 and the primary reaming drill rod section 221 feed simultaneously to break the locking ring 11 against the head of the nail rod 13, thus achieving the decomposition of the nail rod 13. Figure 6 and Figure 7 As shown in A2;

[0069] The third stage involves continuing to drive the multi-stage decomposition drill bit 2 to rotate, allowing it to penetrate deeper until the secondary reaming drill rod section 222 contacts the remaining portion of the rivet sleeve 12 and locking ring 11, until the connection between the head of the rivet sleeve 12 and the rivet sleeve body is broken, thus achieving the decomposition of the rivet sleeve 12. Figure 6 and Figure 7 As shown in A3;

[0070] The fourth stage involves finally pulling out the multi-stage disassembly drill bit 2, along with the rivet head, thus completing the disassembly of the entire rivet sleeve 12. Figure 6 and Figure 7 As shown in A4.

[0071] Furthermore, in some specific embodiments, please refer to Figure 5 The diameter d1 of the central drill rod section 21 is approximately equal to the diameter of the nail rod 13. And the diameter d1 of the central drill rod section 21 satisfies The size range, and The diameter d2 of the primary reaming drill rod section 221 is equal to the diameter of the shank 13 of the pop rivet 1. The diameter d3 of the secondary reaming drill rod section 222 is equal to the outer diameter D of the sleeve 12 of the pop rivet 1; the length ratio of the center drill rod section 21, the primary reaming drill rod section 221, and the secondary reaming drill rod section 222 is approximately... And the length L1 of the central drill pipe section 21 satisfies The size range, the length L2 of the primary reaming drill rod section 221 meets the requirements. The size range, the length L3 of the secondary reaming drill rod section 222 meets the requirements. Size range.

[0072] Of course, the multi-stage decomposition drill bit 2 is not limited to the three-stage decomposition drill bit embodiment described above; the drill bit can also be used in other ways. Figure 8 and Figure 9The second-order decomposition drill bit shown is used as follows: Figure 10 As shown, the process of removing the drill to disassemble the pop rivet 1 is divided into four stages:

[0073] The first stage involves placing the lower end of the center drill rod section 21 against the center of the drill rod of the core-pulling rivet 1 to complete the drilling of the center hole, thus preparing for the positioning using the reaming drill rod section 22. Figure 10 As shown in A1;

[0074] The second stage involves continuing to drive the multi-stage decomposition drill bit 2 to rotate, pushing it deeper so that the reaming drill rod section 22 connects to the head of the nail rod 13. During this process, the central drill rod section 21 and the reaming drill rod section 22 feed simultaneously to break the locking ring 11 from the head of the nail rod 13, thus achieving the decomposition of the nail rod 13. Figure 10 As shown in A2;

[0075] The third stage involves continuing to drive the multi-stage decomposition drill bit 2 to rotate, allowing it to penetrate deeper until the reaming drill rod section 22 contacts the remaining portion of the rivet sleeve 12 and locking ring 11, until the connection between the head of the rivet sleeve 12 and the main body is broken, thus achieving the decomposition of the rivet sleeve 12. Figure 10 As shown in A3;

[0076] The fourth stage involves finally pulling out the multi-stage disassembly drill bit 2, along with the rivet head, thus completing the disassembly of the entire rivet sleeve 12. Figure 10 As shown in A4.

[0077] Furthermore, the reaming drill rod section 22 can even be set with more sections, as long as the core-pulling rivet 1 can be disassembled by the removal drilling work of the multi-stage disassembly drill bit 2.

[0078] Furthermore, in some specific embodiments, please refer to Figure 9 The diameter d1 of the central drill rod section 21 is approximately equal to the diameter of the nail rod 13. And the diameter d1 of the central drill rod section 21 satisfies The size range, and The diameter d2 of the reaming drill rod section 22 is equal to the outer diameter D of the sleeve 12 of the pop rivet 1; the length ratio of the center drill rod section 21 to the reaming drill rod section 22 is approximately... And the length L1 of the central drill pipe section 21 satisfies The size range, the length L2 of the reaming drill rod section 22 meets the requirements Size range.

[0079] Furthermore, when using a three-stage or two-stage decomposition drill bit, the rotational speed in the first stage is... The feed rate is To enable rapid drilling of the center hole in the steel nail rod 13, the rotation speed in the second stage is... The feed rate is To quickly remove the steel locking ring 11, the rotation speed in the third stage is... This allows the carbon fiber hole wall used for inserting the pop rivet 1 to be protected while the steel rivet sleeve 12 is removed.

[0080] Based on the above embodiments, optionally, the multi-stage decomposition drill bit 2 adopts an integral structural component of the same material to reduce manufacturing difficulty. Alternatively, optionally, the multi-stage decomposition drill bit 2 adopts a heterogeneous combination drill bit, with the central drill rod section 21, the primary reaming drill rod section 221, and the secondary reaming drill rod section 222 sequentially fixedly connected, preferably by welding. Of course, any type of fixed connection method such as threaded connection can also be used. This configuration can reduce costs while ensuring the function of the decomposition core-pulling rivet 1.

[0081] Based on the above embodiments, the core-pulling rivet removal device further includes a handheld drill 3, which includes a mounting housing 31, a positioning base 32, a drive assembly, and a handle 33. The drive assembly is located inside the mounting housing 31, and the handle 33 is provided on the outer side of the mounting housing 31. The positioning base 32 is located at the bottom of the mounting housing 31 and has a processing channel 3211. The multi-stage decomposition drill bit 2 is connected to the output end of the drive assembly and is movably inserted into the processing channel 3211. The mounting housing 31 is movably located on the positioning base 32, and the moving direction of the mounting housing 31 is parallel to the centerline direction of the multi-stage decomposition drill bit 2. The bottom surface of the positioning base 32 is a contoured surface, which is used to fit against the surface of the workpiece to be connected in the riveting joint, so that the multi-stage decomposition drill bit 2 extends along the centerline direction of the core-pulling rivet 1.

[0082] refer to Figure 1 As explained, the mounting housing 31 is used to install and support the drive assembly and the multi-stage decomposition drill bit 2, etc. It can adopt a housing structure with a square or elliptical shape. The drive assembly is located inside the mounting housing 31 and has an opening at the bottom of the mounting housing 31 for the multi-stage decomposition drill bit 2 to pass through. The output end of the drive assembly is connected to the upper end of the multi-stage decomposition drill bit 2 and is used to drive the multi-stage decomposition drill bit 2 to perform rotary motion.

[0083] The positioning base 32 is fixedly connected to the bottom of the mounting housing 31, and the positioning base 32 has a vertically extending and penetrating machining channel 3211. The multi-stage disassembly drill bit 2, connected to the output end of the drive assembly, can be vertically moved and inserted into the positioning channel. In use, such as... Figure 14As shown, the bottom surface of the positioning base 32 abuts against and fits against the surface of the workpiece to be connected in the riveting joint. The positioning base 32 is the point of force of the core-pulling rivet removal device, so that the multi-stage decomposition drill bit 2 is perpendicular to the surface of the workpiece to be connected, and the multi-stage decomposition drill bit 2 extends along the center line direction of the core-pulling rivet 1.

[0084] refer to Figure 14 As explained, the mounting housing 31 is height-adjustable and is mounted on top of the positioning base 32. A handle 33 is provided on the outer periphery of the mounting housing 31. In use, the operator can hold the handle 33 to push the mounting housing 31 to rise or fall, which will drive the multi-stage decomposition drill bit 2 to move vertically and realize the feeding of the multi-stage decomposition drill bit 2. With the help of the drive component, the drilling of the multi-stage decomposition drill bit 2 can be realized.

[0085] Based on the above embodiments, the positioning base 32 includes a base body 321 and a plurality of positioning support seats 322. The base body 321 is connected to the bottom of the mounting housing 31, and the bottom surfaces of the plurality of positioning support seats 322 are all contoured surfaces. The plurality of positioning support seats 322 can be selectively connected to the bottom of the base body 321.

[0086] refer to Figure 16 , Figure 17 and Figure 18 As explained, the positioning base 32 consists of a detachable base body 321 and a positioning support 322. The bottom surface of the support is a contoured surface of the outer surface of the workpiece to which the core-pulling rivet 1 is connected. The core-pulling rivet removal device is equipped with several support seats with different contoured surfaces. The contoured surfaces can be flat, convex, or concave, etc. When in use, different support seats can be selected as needed and replaced on the base body 321 to stably support the multi-stage disassembly drill bit 2, so as to ensure that the center line of the multi-stage disassembly drill bit 2 coincides with the center line of the core-pulling rivet 1.

[0087] Based on the above embodiments, the handheld drill 3 also includes a damping component 34 and a connector 39. The base body 321 and the connector 39 are connected by the damping component 34. The processing channel 3211 extends vertically through the base body 321. The bottom of the mounting housing 31 has a guide post 311. The guide post 311 is fixedly connected to the connector 39 and slidably fitted to the base body 321. The damping component 34 is used to drive the connector 39 to move toward the side away from the base body 321.

[0088] refer to Figures 11 to 14As explained, a guide post 311 is located at the bottom of the mounting housing 31. The guide post 311 is fixedly connected to the connector 39. The connector 39 can be a flat plate or frame structure, etc., and the connector 39 is connected to the base body 321 through a damping component 34. The damping component 34 acts as a buffer and can be an electromagnetic damping mechanism, etc., so that the multi-stage decomposition drill bit 2 can be fed stably. Correspondingly, the output end of the drive component is inserted into the inner cavity of the positioning post, and the center line of the output end of the drive component is collinear with the center line of the positioning post. After the multi-stage decomposition drill bit 2 is connected to the output end of the drive component, the center line of the multi-stage decomposition drill bit 2 is collinear with the center line of the positioning post. The positioning post is inserted from top to bottom into the processing channel 3211 of the base body 321, and the positioning post slides against the top wall of the base body 321 to guide the multi-stage decomposition drill bit 2.

[0089] Based on the above embodiments, the damping assembly 34 includes two damping compression rods 341, two damping springs 342, and two limiting nuts 343; the connector 39 has a plug-in through hole, through which the guide post 311 passes; the base body 321 has two limiting channels, which are distributed on both sides of the guide post 311; the bottom ends of the two damping compression rods 341 are inserted into the corresponding limiting channels, and the middle section of the length of the damping compression rod 341 passes through the connector 39; the two limiting nuts 343 are threaded to the top ends of the corresponding damping compression rods 341; the two damping springs 342 are inserted into the corresponding limiting channels, and the bottom ends of the damping springs 342 are connected to the base body 321, and the top ends are connected to the corresponding damping compression rods 341.

[0090] refer to Figure 14 As explained, a damping compression rod 341 is distributed on both the left and right sides of the guide post 311. Specifically, two vertically extending limiting channels are provided on the base body 321, one of which is located on the left side of the machining channel 3211 of the base body 321, and the other is located on the right side of the machining channel 3211 of the base body 321. Correspondingly, a damping spring 342 is inserted at the bottom of each of the two limiting channels. The lower end of the damping spring 342 is fixedly connected to the base body 321, and the upper end is fixedly connected to the bottom end of the damping compression rod 341 inserted in the upper part of the limiting channel. The damping compression rod 341 extends upward and passes through the connector 39. A limiting nut 343 is fitted on the external thread of the upper end of the damping compression rod 341, so that the limiting nut 343 can be adjusted to meet the feed stroke requirements.

[0091] When using, refer to Figure 14As explained, when the rivet removal device is not subjected to external force, i.e., in a non-working state, the tension of the damping spring 342 ensures that the multi-stage disassembly drill bit 2 and the rivet 1 are in a non-contact state, preventing damage to the rivet 1 due to misoperation. When the rivet removal device is subjected to external force to disassemble the rivet 1, i.e. in a working state, when the operator applies downward pressure through the handle 33, the damping compression rod 341 is compressed along with the feed damping spring 342, so that the multi-stage disassembly drill bit 2 is fed stably and slowly, which can prevent the multi-stage disassembly drill bit 2 from causing a violent impact on the rivet 1 due to excessive force.

[0092] Based on the above embodiments, the handheld drill 3 also includes a positioning laser generator 35, which is located on the side wall of the processing channel 3211 and is used to generate a cross laser whose center point coincides with the center line of the multi-stage decomposition drill bit 2.

[0093] refer to Figure 11 and Figure 14 As explained, the positioning laser generator 35 is embedded inside the base body 321 to provide positioning for... Figure 15 The cross laser shown aligns its center with the center of the core-pulling rivet 1 during operation, providing a positioning reference for the drilling operation of the multi-stage decomposition drill bit 2 and improving the accuracy of the drilling operation.

[0094] Furthermore, a camera can be installed on the side wall of the processing channel 3211 to monitor and record the drilling process.

[0095] Based on the above embodiments, the handheld drill 3 also includes a controller, which is signal-connected to the drive assembly and the positioning laser generator 35, for receiving the positioning result from the positioning laser generator 35 and controlling the operation of the drive assembly.

[0096] In use, after the positioning laser generator 35 performs detection, it transmits the detection result to the controller. The controller determines whether the positioning is accurate. If the positioning is accurate, it controls the drive component to start and controls the drive component's direction and / or speed and / or acceleration parameters according to the controller's internal logic to control the operation of the drive component.

[0097] Based on the above embodiment, the handle 33 is provided with a gear control key 36, a touch screen 37 and a power switch 38; the gear control key 36 is connected to the controller for controlling the speed of the drive component; the touch screen 37 is connected to the controller for inputting control signals into the controller; the power switch 38 is electrically connected to the drive component and the controller for controlling the power on or off.

[0098] refer to Figure 11 , Figure 12 and Figure 14 As explained, the gear control key 36 is used to control the rotation speed of the multi-stage decomposition drill bit 2. The rotation speed can be adjusted by pressing the control key. The touch screen 37 is exposed outside the handle 33 to input control signals to the controller to smoothly realize the drilling operation, such as inputting the rotation speed strategy and selecting the control mode. A movable switch 38 is set on the handle 33 to control the start or stop of the core-pulling rivet removal equipment.

[0099] Preferably, the main switch 38 is located on the side of the handle 33 near the positioning base 32, and the gear control button is located on the side of the handle 33 away from the positioning base 32. The main switch 38 is located at the bottom of the handle 33, and the gear control button is located at the top of the handle 33. When in use, the index finger presses the drill switch, and the thumb switches the speed control button at the same time, which can realize single-handed drilling speed adjustment.

[0100] In some specific embodiments, the control method selectable via touchscreen 37 includes options for not requiring a rotational speed strategy and requiring a rotational speed strategy. Optionally, when no rotational speed strategy is required, the drilling speed of the drill bit increases with the force applied to the drill bit switch manually. Specifically, the drilling speed range is from 0 to the maximum output speed of the drive component; releasing the switch stops the multi-stage decomposition drill bit 2 from rotation. Alternatively, when a rotational speed strategy is required, the rotational speed strategy is input into the controller via touchscreen 37. The drilling speed of the multi-stage decomposition drill bit 2 increases with the force applied to the gear control key 36 by the operator, and the drilling speed range of the multi-stage decomposition drill bit 2 is controlled within the input rotational speed strategy. For example, the rotational speed strategy includes the drill bit rotational speed range. As the pressure applied to the gear control key 36 increases, the drilling speed of the multi-stage decomposition drill bit 2 increases from 600 to... And stop rotating after releasing the gear control button 36.

[0101] In summary, please refer to the following: Figure 19 Alternatively, a method for disassembling blind rivets applicable to the aforementioned blind rivet removal equipment can be provided. The method for disassembling blind rivets includes the following steps:

[0102] Step S1: Select the multi-stage decomposition drill bit type 2;

[0103] Step S2: Determine the rotational speed at each stage of the decomposition process based on the type of multi-stage decomposition drill bit 2;

[0104] Step S3: Place the handheld drill bit 3 at the riveting joint and calibrate it using the positioning laser generator 35;

[0105] Step S4: After the machine is turned on by switch 38, press the gear control key 36 at the beginning of each stage to complete the drilling operation stage by stage. For example, using... Figure 4 and Figure 5 When performing the three-stage decomposition drilling as shown, at the start of the center hole drilling operation, press the first gear control key 36, and the rotation speed of the multi-stage decomposition drill bit 2 matches the drilling speed of the center drill rod section 21, i.e., it rotates within the first rotation speed range; after completion, it enters the second stage of the locking ring 11 removal stage, and immediately press the second gear control key 36, and the drilling speed of the multi-stage decomposition drill bit 2 is adjusted to the drilling speed of the primary reaming drill rod section 221, i.e., it rotates within the second rotation speed range; after completion, it enters the third stage of the nail sleeve 12 decomposition, and immediately press the third gear control key 36, and the drilling speed of the multi-stage decomposition drill bit 2 is adjusted to the drilling speed of the secondary reaming drill rod section 222, i.e., it rotates within the third rotation speed range;

[0106] Step S5: After disassembling the pop rivet 1, release the gear control key 36 to stop the operation.

[0107] The above-mentioned method for disassembling the core-pulling rivet is implemented under a control method based on a speed strategy.

[0108] Alternatively, another method for disassembling blind rivets applicable to the above-mentioned blind rivet removal equipment can be provided. The blind rivet disassembly method includes the following steps: Step S1: Select the multi-stage disassembly drill bit type 2;

[0109] Step S2: Determine the rotational speed at each stage of the decomposition process based on the type of multi-stage decomposition drill bit 2;

[0110] Step S3: Place the handheld drill bit 3 at the riveting joint and calibrate it using the positioning laser generator 35;

[0111] Step S4: After the machine is turned on by switch 38, adjust the force of pulling the drill bit switch according to the working conditions;

[0112] Step S5: After disassembling the pop rivet 1, release the gear control key 36 to stop the operation.

[0113] Based on the above embodiments, the base body 321 is provided with an observation window 323. The observation window 323 can adopt a window structure of V-shaped window or round window, etc. The window plate of the observation window 323 is made of transparent plate so that the operator can observe the drilling operation. Preferably, the extension direction of the observation window 323 is parallel to the extension direction of the handle to avoid the handle affecting the observation effect. Furthermore, there are two observation windows 323, and the two identical observation windows 323 are arranged opposite each other. A suction pipe interface 3231 is provided in one observation window 323. Before drilling, a vacuum cleaner is connected to the suction pipe interface 3231, so that the drill cuttings can be sucked out from the processing channel 3211 at the same time as the drilling operation to ensure that the riveting joint is clean and tidy.

[0114] It should be noted that the relational terms such as "first" and "second" mentioned above are only used to distinguish one entity from several other entities, and do not necessarily require or imply any such actual relationship or order between these entities; the terms "upper surface," "lower surface," "top," and "bottom" and the directional terms "upper," "lower," "left," and "right" mentioned above are defined based on the accompanying drawings in the specification.

[0115] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0116] The above provides a detailed description of the core-pulling rivet removal device provided in this application. Specific examples have been used to illustrate the principles and implementation methods of this application. The descriptions of the embodiments above are merely for the purpose of helping to understand the method and core ideas of this application. It should be noted that those skilled in the art can make various improvements and modifications to this application without departing from its principles, and these improvements and modifications also fall within the protection scope of this application.

Claims

1. A device for removing blind rivets, characterized in that, include: A multi-stage decomposition drill bit (2) includes a central drill rod section (21) and a reaming drill rod section (22). The tail end of the reaming drill rod section (22) is used to be inserted into the drill bit, and the tail end of the center drill rod section (21) is fixedly connected to the head end of the reaming drill rod section (22). The centerline of the central drill rod section (21) coincides with the centerline of the reaming drill rod section (22), and the diameter of the central drill rod section (21) is smaller than the diameter of the reaming drill rod section (22). The central drill rod section (21) is used to drill a central hole at the center of the drill rod, and the reaming drill rod section (22) is used to remove the locking ring (11) and disassemble the nail rod (13) and the nail sleeve (12).

2. The core-pulling rivet removal device according to claim 1, characterized in that, The reaming drill rod section (22) includes a primary reaming drill rod section (221) and a secondary reaming drill rod section (222). The tail end of the secondary reaming drill rod section (222) is used to be inserted into the drill bit, the tail end of the primary reaming drill rod section (221) is fixedly connected to the head end of the secondary reaming drill rod section (222), and the tail end of the center drill rod section (21) is fixedly connected to the head end of the primary reaming drill rod section (221). Furthermore, the diameter of the secondary reaming drill rod section (222) is greater than the diameter of the primary reaming drill rod section (221), and the diameter of the primary reaming drill rod section (221) is greater than the diameter of the central drill rod section (21).

3. The core-pulling rivet removal device according to claim 2, characterized in that, The multi-stage decomposition drill bit (2) is an integral structural component; Alternatively, the central drill rod section (21), the primary reaming drill rod section (221), and the secondary reaming drill rod section (222) may be welded sequentially.

4. The core-pulling rivet removal device according to any one of claims 1-3, characterized in that, The core-pulling rivet removal device also includes a handheld drill (3), which includes a mounting housing (31), a positioning base (32), a drive assembly, and a handle (33). The drive assembly is located inside the mounting housing (31) shown, and the outer side of the mounting housing (31) is provided with a handle (33). The positioning base (32) is located at the bottom of the mounting housing (31). The positioning base (32) has a processing channel (3211). The multi-stage decomposition drill bit (2) is connected to the output end of the drive assembly. The multi-stage decomposition drill bit (2) is movably inserted into the processing channel (3211). The mounting housing (31) is movably located on the positioning base (32). The moving direction of the mounting housing (31) is parallel to the centerline direction of the multi-stage decomposition drill bit (2). Furthermore, the bottom surface of the positioning base (32) is a contour surface, which is used to fit the surface of the workpiece to be connected in the riveting joint, so that the multi-stage decomposition drill bit (2) extends along the center line direction of the core-pulling rivet (1).

5. The core-pulling rivet removal device according to claim 4, characterized in that, The positioning base (32) includes a base body (321) and a plurality of positioning support seats (322). The base body (321) is connected to the bottom of the mounting housing (31). The bottom surfaces of the plurality of positioning support seats (322) are all the contoured surfaces. The plurality of positioning support seats (322) can be selectively connected to the bottom of the base body (321).

6. The core-pulling rivet removal device according to claim 5, characterized in that, The handheld drill (3) also includes a damping assembly (34) and a connector (39). The base body (321) and the connector (39) are connected by the damping assembly (34). The processing channel (3211) runs vertically through the base body (321). The bottom of the mounting housing (31) has a guide post (311). The guide post (311) is fixedly connected to the connector (39) and slidably fitted to the base body (321). The damping assembly (34) is used to drive the connector (39) to move toward the side away from the base body (321).

7. The core-pulling rivet removal device according to claim 6, characterized in that, The damping assembly (34) includes two damping compression rods (341), two damping springs (342), and two limiting nuts (343). The connector (39) has a through-hole, through which the guide post (311) passes; The base body (321) has two limiting channels, which are distributed on both sides of the guide post (311); The bottom ends of the two damping compression rods (341) are inserted into the corresponding limiting channels, and the middle section of the length of the damping compression rod (341) passes through the connector (39). The two limiting nuts (343) are threaded to the top of the corresponding damping compression rod (341); Two damping springs (342) are inserted into the corresponding limiting channels, and the bottom end of the damping spring (342) is connected to the base body (321), and the top end is connected to the corresponding damping compression rod (341).

8. The core-pulling rivet removal device according to claim 4, characterized in that, The handheld drill (3) also includes a positioning laser generator (35), which is located on the side wall of the processing channel (3211) and is used to generate a cross laser whose center point coincides with the center line of the multi-stage decomposition drill bit (2).

9. The core-pulling rivet removal device according to claim 8, characterized in that, The handheld drill (3) also includes a controller, which is signal-connected to the drive assembly and the positioning laser generator (35) to receive the positioning result of the positioning laser generator (35) and control the operation of the drive assembly.

10. The core-pulling rivet removal device according to claim 9, characterized in that, The handle (33) is equipped with a gear control button (36), a touch screen (37) and a power switch (38). The gear control key (36) is connected to the controller and is used to control the speed of the drive component; The touch screen (37) is connected to the controller and is used to input control signals into the controller; The switch (38) is electrically connected to the drive assembly and the controller, and is used to control the power on or off.

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