Riveting device

Abstract

The utility model discloses a riveting device which comprises a seat body, a movable seat, a rivet pulling structure and a core-pulling rivet assembly. The seat body is provided with a stop piece, and the stop piece is provided with a first through hole; the movable seat is movably arranged on the seat body in the hole axis direction of the first through hole and is located on one side of the stop piece, and the movable seat is opposite to the first through hole; the pull riveting structure can be assembled and disassembled on the movable seat, the pull riveting structure is provided with a pull riveting stud part, and when the pull riveting structure is installed on the movable seat, the pull riveting stud part is arranged in the first through hole in a penetrating mode and extends out of the seat body; the core-pulling rivet assembly can be assembled and disassembled on the moving seat and is provided with a rivet core clamping position; wherein the riveting device has a rivet pulling state and a core pulling state, and in the rivet pulling state, the rivet pulling structure is installed on the movable base; and in the core-pulling state, the core-pulling rivet assembly is mounted on the movable seat.

Description

Technical Field

[0001] The utility model relates to the field of riveting, and particularly relates to a riveting device. Background Art

[0002] During the assembly process of the battery lower box body of new energy, it is necessary to use blind rivet nuts and blind rivets. Usually, when riveting blind rivet nuts, a blind rivet gun applicable to blind rivet nuts is required for riveting. The blind rivet gun includes a seat body and a riveting mechanism. The riveting mechanism is provided with a riveting stud, and the seat body is provided with a stopper. When in use, the riveting stud is threadedly connected to the blind rivet nut, and one end of the blind rivet nut is restricted by the stopper. Subsequently, the riveting mechanism moves relative to the seat body, causing the blind rivet nut to deform to complete the riveting. Riveting blind rivets requires a blind rivet gun applicable to blind rivets for riveting. The blind rivet gun includes a seat body and a blind riveting mechanism. The seat body is provided with a stopper, and the blind riveting mechanism has a core clamping position. When in use, the core of the blind rivet is clamped by the blind riveting mechanism, and one end of the sleeve of the blind rivet is blocked by the stopper. When the blind riveting mechanism moves relative to the seat body, the sleeve is pulled and deformed through the core to complete the riveting. Both the blind rivet nut and the blind rivet are riveted by the way of pulling and deforming, but currently, the blind rivet nut and the blind rivet need two different riveting devices for riveting, and the versatility of the riveting device is insufficient. Content of the Utility Model

[0003] The utility model aims to at least solve one of the technical problems existing in the prior art. For this purpose, the utility model provides a riveting device, which can improve the versatility of the riveting device.

[0004] The riveting device according to an embodiment of the utility model includes a seat body, a moving seat, a riveting structure and a blind riveting assembly. The seat body is provided with a stopper, and the stopper is provided with a first through hole; the moving seat is movably arranged on the seat body along the axis direction of the first through hole and is located on one side of the stopper, and the moving seat is opposite to the first through hole; the riveting structure can be assembled and disassembled on the moving seat, the riveting structure is provided with a riveting stud part, and when the riveting structure is installed on the moving seat, the riveting stud part penetrates through the first through hole and extends out of the seat body; the blind riveting assembly can be assembled and disassembled on the moving seat, and the blind riveting assembly is provided with a core clamping position; wherein, the riveting device has a blind riveting state and a blind riveting state. In the blind riveting state, the riveting structure is installed on the moving seat; in the blind riveting state, the blind riveting assembly is installed on the moving seat.

[0005] The riveting device according to the embodiments of the present utility model has at least the following beneficial effects: When it is necessary to rivet a blind rivet nut, the riveting structure can be installed on the moving seat, and the blind rivet stud portion extends out through the first through hole, so that the riveting device is in a blind riveting state. Subsequently, the blind rivet nut is threadedly connected to the blind rivet stud portion, and the moving seat moves relative to the stopper to complete the riveting of the blind rivet nut; when it is necessary to rivet a blind rivet, the blind rivet assembly can be installed on the moving seat, so that the riveting device is in a blind riveting state. The core of the blind rivet is inserted into the core clamping position through the first through hole, the blind rivet assembly clamps the core of the blind rivet, and the moving seat moves relative to the stopper to complete the riveting of the blind rivet; for the above-mentioned riveting device, by installing the riveting structure or the blind rivet assembly, it can be applicable to riveting blind rivet nuts or blind rivet, thereby improving the versatility of the riveting device.

[0006] According to some embodiments of the present utility model, the moving seat includes a main body and a limiting block. The main body is provided with a mounting hole, the mounting hole is coaxially arranged with the first through hole, a narrowing section is arranged at one end of the mounting hole close to the first through hole, the limiting block is detachably arranged at the other end of the mounting hole, the mounting hole is used for mounting the riveting structure and the blind rivet assembly, and the limiting block and the narrowing section can limit the positions of the riveting structure and the blind rivet assembly.

[0007] According to some embodiments of the present utility model, the riveting structure is a bolt, the bolt includes the blind rivet stud portion and a screw head, the screw head is connected to one end of the blind rivet stud portion. In the blind riveting state, the bolt passes through the mounting hole, and the screw head is limited between the narrowing section and the limiting block.

[0008] According to some embodiments of the present utility model, the blind rivet assembly includes at least two clamping jaws. In the blind riveting state, all the clamping jaws are arranged in the mounting hole around the axis of the first through hole, a core clamping position is formed between the clamping jaws, the clamping jaws can approach or move away from each other, and the moving seat is provided with an elastic member. The elastic member is located between the limiting block and the clamping jaws and can apply a force to the clamping jaws towards the narrowing section. The narrowing section is conical and the small end is close to the first through hole.

[0009] According to some embodiments of the present utility model, the blind rivet assembly further includes a sliding ring, the sliding ring is slidably connected in the mounting hole, one end of the elastic member abuts against the limiting block, the other end of the elastic member abuts against one side of the sliding ring, and the other side of the sliding ring abuts against all the clamping jaws.

[0010] According to some embodiments of the present utility model, one side of the clamping jaw close to the core clamping position is uneven.

[0011] According to some embodiments of the present utility model, a guiding surface is provided at one end of the clamping jaw close to the first through hole, and the distance between one end of the guiding surface close to the first through hole and the axis of the first through hole is greater than the distance between the other end of the guiding surface and the axis of the first through hole.

[0012] According to some embodiments of the present utility model, a second through hole is provided in the middle of the limiting block.

[0013] According to some embodiments of the present utility model, the seat body includes a main frame body and a rotating sleeve. The rotating sleeve is rotatably arranged on the main frame body. The rotating sleeve is provided with a first threaded hole, and the first threaded hole is coaxially arranged with the first through hole. The moving seat is provided with an external threaded portion, and the moving seat is threadedly connected to the first threaded hole through the external threaded portion. The moving seat is slidably connected to the main frame body.

[0014] According to some embodiments of the present utility model, the stop member is detachably connected to the main frame body.

[0015] The additional aspects and advantages of the present utility model will be partly given in the following description, partly will become obvious from the following description, or be understood through the practice of the present utility model. Description of the Drawings

[0016] The above and / or additional aspects and advantages of the present utility model will become obvious and easy to understand from the description of the embodiments in conjunction with the following drawings, wherein:

[0017] Figure 1 is a front view schematic diagram of the riveting device according to the embodiment of the present utility model in the core-pulling state;

[0018] Figure 2 is a cross-sectional view schematic diagram of the riveting device according to the embodiment of the present utility model in the core-pulling state;

[0019] Figure 3 is a front view schematic diagram of the riveting device according to the embodiment of the present utility model in the blind riveting state;

[0020] Figure 4 is a cross-sectional view schematic diagram of the riveting device according to the embodiment of the present utility model in the blind riveting state;

[0021] Figure 5 is a three-dimensional schematic diagram of the riveting device according to the embodiment of the present utility model in the core-pulling state.

[0022] Reference Signs:

[0023] Seat body 100, stop member 110, first through hole 111, main frame body 120, rotating sleeve 130, first threaded hole 131, planar thrust bearing 140, cantilever 150;

[0024] Moving seat 200, main body 210, mounting hole 211, narrowing section 212, limiting block 220, second through hole 221, elastic member 230;

[0025] Riveting structure 300, riveting stud portion 310, screw head portion 320;

[0026] Core-pulling rivet assembly 400, nail core clamping position 401, clamping jaw 410, guiding surface 411, sliding ring 420. Specific embodiments

[0027] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present invention and should not be construed as a limitation of the present invention.

[0028] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by terms such as up and down, etc., is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0029] In the description of the present invention, "a plurality of" refers to more than two. If there is a description of first and second, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence of the indicated technical features.

[0030] In the description of the present invention, unless otherwise clearly defined, words such as "set", "installed", "connected", etc. should be understood in a broad sense. Those skilled in the art can reasonably determine the specific meanings of the above words in the present invention in combination with the specific content of the technical solution.

[0031] Refer to Figures 1 to 5, which is the riveting device of the embodiment of the present utility model, includes a base body 100, a moving base 200, a riveting structure 300 and a blind rivet assembly 400. The base body 100 is provided with a stopper 110, and the stopper 110 is provided with a first through hole 111; the moving base 200 is movably arranged on the base body 100 along the axis direction of the first through hole 111 and is located on one side of the stopper 110, and the moving base 200 is opposite to the first through hole 111; the riveting structure 300 can be installed and disassembled on the moving base 200, and the riveting structure 300 is provided with a riveting stud part 310. When the riveting structure 300 is installed on the moving base 200, the riveting stud part 310 passes through the first through hole 111 and extends out of the base body 100; the blind rivet assembly 400 can be installed and disassembled on the moving base 200, and the blind rivet assembly 400 is provided with a mandrel clamping position 401; wherein the riveting device has a riveting state and a blind riveting state. In the riveting state, the riveting structure 300 is installed on the moving base 200; in the blind riveting state, the blind rivet assembly 400 is installed on the moving base 200.

[0032] When it is necessary to rivet a blind rivet nut, the riveting structure 300 can be installed on the moving base 200, and the riveting stud part 310 extends out through the first through hole 111, so that the riveting device is in the riveting state. Subsequently, the blind rivet nut is threadedly connected with the riveting stud part 310, and the moving base 200 moves relative to the stopper 110 to complete the riveting of the blind rivet nut; when it is necessary to rivet a blind rivet, the blind rivet assembly 400 can be installed on the moving base 200, so that the riveting device is in the blind riveting state. The mandrel of the blind rivet is inserted into the mandrel clamping position 401 through the first through hole 111, the blind rivet assembly 400 clamps the mandrel of the blind rivet, and the moving base 200 moves relative to the stopper 110 to complete the riveting of the blind rivet; for the above-mentioned riveting device, by installing the riveting structure 300 or the blind rivet assembly 400, it can be applicable to rivet a blind rivet nut or a blind rivet, thereby improving the versatility of the riveting device; moreover, there is no need to separately equip a blind riveting gun and a riveting gun, reducing the equipment cost.

[0033] In an embodiment, the moving seat 200 includes a main body 210 and a limiting block 220. The main body 210 is provided with a mounting hole 211, and the mounting hole 211 is coaxially arranged with the first through hole 111. A narrowing section 212 is provided at one end of the mounting hole 211 close to the first through hole 111. The limiting block 220 is detachably arranged at the other end of the mounting hole 211. The mounting hole 211 is used for mounting a riveting structure 300 and a blind rivet assembly 400. The limiting block 220 and the narrowing section 212 can limit the positions of the riveting structure 300 and the blind rivet assembly 400. For the above-mentioned moving seat 200, the positions of the riveting structure 300 and the blind rivet assembly 400 are limited by the limiting block 220 and the narrowing section 212, so that the riveting structure 300 and the blind rivet assembly 400 can be limited within the mounting hole 211. When selecting to install the riveting structure 300 or the blind rivet assembly 400, both can be stably installed on the moving seat 200; when it is necessary to install the riveting structure 300 or the blind rivet assembly 400, the limiting block 220 is disassembled from the main body 210, so that the riveting structure 300 or the blind rivet assembly 400 can penetrate into the mounting hole 211, and then the limiting block 220 is reinstalled to limit the position of the riveting structure 300 or the blind rivet assembly 400, thereby completing the installation of the riveting structure 300 or the blind rivet assembly 400.

[0034] In an embodiment, the riveting structure 300 is a bolt. The bolt includes a riveting stud portion 310 and a bolt head portion 320. The bolt head portion 320 is connected to one end of the riveting stud portion 310. In the riveting state, the bolt penetrates through the mounting hole 211, and the bolt head is limited between the narrowing section 212 and the limiting block 220. For the above-mentioned riveting structure 300, when the bolt head is located within the mounting hole 211, the position of the bolt head can be restricted by the limiting block 220 and the narrowing section 212, so that the bolt is stably installed on the moving seat 200. The structure is simple, and the riveting stud portion 310 can extend out of the seat body 100 through the narrowing section 212, which is convenient for threaded connection with a riveting nut.

[0035] It can be imagined that the riveting structure 300 can also be other structures. For example, the riveting structure 300 includes a mounting head and a riveting stud portion 310. The mounting head is inserted into the moving seat 200 in a direction perpendicular to the axis of the first through hole 111 to realize the assembly and disassembly of the riveting structure 300 and the moving seat 200.

[0036] In the embodiment, the blind rivet assembly 400 includes two jaws 410. In the core pulling state, all the jaws 410 are arranged in the mounting hole 211 around the hole axis of the first through hole 111, and a nail core clamping position 401 is formed between the jaws 410. The jaws 410 can move closer to each other or move away from each other. The movable seat 200 is provided with an elastic member 230, which is located between the limit block 220 and the jaws 410 and can apply a force to the jaws 410 toward the narrowing section 212. The narrowing section 212 is conical and the small end is close to the first through hole 111. When the nail core of the blind rivet extends into the nail core clamping position 401, the elastic member 230 applies a force to the clamping jaws 410 toward the narrowing section 212, and the narrowing section 212 is conical, so that the clamping jaws 410 will move closer to each other and clamp the nail core; when the movable seat 200 moves to pull the nail core, the nail core will apply a force to the clamping jaws 410 in the direction of the first through hole 111, so that the clamping jaws 410 can firmly clamp the nail core, and finally the blind rivet is riveted.

[0037] Specifically, the blind rivet assembly 400 has two clamps 410. When the two clamps 410 are close to each other, the nail core can be clamped relatively stably. It is conceivable that the blind rivet assembly 400 can also have three, four or more clamps 410, and those skilled in the art can configure it according to actual needs.

[0038] Specifically, the different clamping jaws 410 of the blind rivet assembly 400 may be independent parts that are processed separately, or a plurality of elastic cantilevers 150 may be processed from one part, and the elastic cantilever 150 forms the clamping jaw 410 .

[0039] In the embodiment, the blind rivet assembly 400 further includes a slip ring 420, which is slidably connected in the mounting hole 211, one end of the elastic member 230 abuts against the limit block 220, the other end of the elastic member 230 abuts against one side of the slip ring 420, and the other side of the slip ring 420 abuts against all the clamping jaws 410. The elastic member 230 abuts against all the clamping jaws 410 through the slip ring 420, so that all the clamping jaws 410 can be subjected to the same elastic force of the elastic member 230, and the moving distance of each clamping jaw 410 along the hole axis of the first through hole 111 is basically the same, so that when each clamping jaw 410 clamps the nail core, the clamping force of each clamping jaw 410 is basically the same, and the clamping effect on the nail core is relatively stable. The hole in the middle of the slip ring 420 can also allow the nail core to pass through, so that after the riveting is completed, the cut nail core can pass through the slip ring 420 and escape from the blind rivet assembly 400.

[0040] Specifically, the elastic member 230 is a spring, and the hole in the middle can also allow the nail core to pass through, with a simple structure and good durability. It is conceivable that the elastic member 230 can also be a spring, a silicone block, etc., and those skilled in the art can make specific choices according to actual needs.

[0041] In the embodiment, the side of the clamping jaw 410 close to the nail core clamping position 401 is uneven. After the nail core is inserted into the nail core clamping position 401, the clamping jaw 410 can cooperate to clamp the nail core. If the side of the clamping jaw 410 close to the nail core is uneven, the friction between the clamping jaw 410 and the nail core can be increased, so that the nail core is clamped more firmly, which facilitates pulling the blind rivet to deform it.

[0042] Specifically, a side of the clamping jaw 410 close to the mandrel clamping position 401 is provided with a plurality of convex teeth arranged along the axis direction of the first through hole 111, and the plurality of convex teeth make one side of the clamping jaw 410 uneven. It is understandable that the clamping jaw 410 can also be provided with other structures to achieve unevenness on the side of the clamping jaw 410 close to the mandrel clamping position 401, for example, the clamping jaw 410 is provided with irregularly arranged concave and convex structures.

[0043] In the embodiment, a guide surface 411 is provided at one end of the clamping jaw 410 close to the first through hole 111, and the distance between the end of the guide surface 411 close to the first through hole 111 and the hole axis of the first through hole 111 is greater than the distance between the other end of the guide surface 411 and the hole axis of the first through hole 111. When the mandrel of the blind rivet passes through the first through hole 111 and moves toward the clamping jaw 410, the mandrel first abuts against the guide surface 411, so that the mandrel pushes the clamping jaw 410 away from the first through hole 111 and causes the different clamping jaws 410 to be stretched apart, and then the mandrel enters the mandrel clamping position 401, and the clamping jaw 410 resets the clamping mandrel under the action of the elastic member 230 and the narrowing section 212. When it is necessary to remove the clamped cut mandrel, another mandrel can be inserted through the first through hole 111, and the clamping jaw 410 can be slightly pushed to cause the different clamping jaws 410 to be stretched apart, so that the cut mandrel can be removed.

[0044] In the embodiment, a second through hole 221 is provided in the middle of the limit block 220. The second through hole 221 is provided so that when the movable seat 200 is installed with the blind rivet assembly 400, it is convenient to take out the cut nail core through the second through hole 221, and when the movable seat 200 is installed with the rivet assembly, it is convenient to insert a screwdriver through the second through hole 221 to screw the bolt, so that the bolt can be threadedly connected or separated from the rivet nut.

[0045] In an embodiment, the seat body 100 includes a main frame body 120 and a rotating sleeve 130. The rotating sleeve 130 is rotatably arranged on the main frame body 120. The rotating sleeve 130 is provided with a first threaded hole 131, and the first threaded hole 131 is coaxially arranged with the first through hole 111. The moving seat 200 is provided with an external threaded portion, and the moving seat 200 is threadedly connected to the first threaded hole 131 through the external threaded portion. The moving seat 200 is slidably connected to the main frame body 120. When it is necessary to move the moving seat 200 relative to the stopper 110, by driving the rotation of the rotating sleeve 130, the rotating sleeve 130 drives the moving seat 200 through a threaded cooperation manner, and a relatively large force can be applied to the moving seat 200 to drive the moving seat 200 to move relative to the seat body 100, completing the riveting process, and the use effect is better.

[0046] Specifically, the main frame body 120 is provided with a non-circular hole, and the outer periphery of the moving seat 200 is adapted to the non-circular hole and slidably connected to the non-circular hole to limit the rotation of the moving seat 200 and realize the slidable connection of the moving seat 200 to the main frame body 120. It can be imagined that the moving seat 200 can also be slidably connected to the main frame body 120 through a slide rail and slider structure to limit the rotation of the moving seat 200 and realize the slidable connection of the moving seat 200 to the main frame body 120.

[0047] Specifically, the rotation of the rotating sleeve 130 can be driven by a motor drive manner to make the moving seat 200 move relative to the stopper 110. It can be imagined that in some other embodiments, the moving seat 200 can also be slidably connected to the seat body 100 along the hole axis direction of the first through hole 111. At this time, a linear actuator can be used to drive the movement of the moving seat 200, such as a cylinder, an electric cylinder, etc.

[0048] Specifically, the main body 210 is provided with a second threaded hole, and the outer periphery of the limiting block 220 is provided with an external thread. The limiting block 220 is threadedly connected to the second threaded hole to realize the detachable connection with the main body 210. It can be imagined that the limiting block 220 can also be detachably connected to the main body 210 by means of magnetic attraction cooperation or clamping, etc.

[0049] Specifically, a flat thrust bearing 140 is arranged between the rotating sleeve 130 and the main frame body 120 to facilitate the rotation of the rotating sleeve 130 relative to the main frame body 120.

[0050] In an embodiment, the stopper 110 is detachably connected to the main frame body 120. Considering that the bolt diameter of the riveting structure 300 is different from the core diameter of the blind rivet, the stopper 110 is detachable, and the stopper 110 with different diameters of the first through hole 111 can be replaced, which is convenient for the smooth progress of the two kinds of riveting.

[0051] Specifically, the stopper 110 is detachably connected to the main frame 120 by means of a threaded connection. It can be imagined that the stopper 110 can also be detachably connected to the main frame 120 by means of magnetic attraction or snap connection, etc.

[0052] Specifically, the base 100 further includes a flat cantilever 150, and the main frame 120 is installed at one end of the cantilever 150, so that the riveting device can extend into a position with a small gap for riveting.

[0053] Specifically, when the riveting device is in the blind riveting state, an elastic member 230 is also installed in the mounting hole 211. One end of the elastic member 230 abuts against the narrowing section 212, and the other end of the elastic member 230 abuts against the screw head portion 320 of the bolt. The elastic member 230 applies a force to the bolt towards the limiting block 220. The elastic member 230 can assist in positioning the position of the limiting bolt in the blind riveting state, prevent the limiting bolt from shaking randomly, and is beneficial to screwing the bolt through the second through hole 221 with a screwdriver.

[0054] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples", etc. means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0055] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the claims and their equivalents.

Claims

1. A riveting device, characterized in that, Comprising: A seat body (100) is provided with a stopper (110), and the stopper (110) is provided with a first through hole (111); A moving seat (200) is movably arranged on the seat body (100) along the hole axis direction of the first through hole (111) and is located on one side of the stopper (110), and the moving seat (200) is opposite to the first through hole (111); A riveting structure (300) can be assembled and disassembled on the moving seat (200), the riveting structure (300) is provided with a riveting stud portion (310), and when the riveting structure (300) is installed on the moving seat (200), the riveting stud portion (310) passes through the first through hole (111) and extends out of the seat body (100); A blind rivet assembly (400) can be assembled and disassembled on the moving seat (200), and the blind rivet assembly (400) is provided with a mandrel clamping position (401); Wherein, the riveting device has a riveting state and a blind riveting state. In the riveting state, the riveting structure (300) is installed on the moving seat (200); in the blind riveting state, the blind rivet assembly (400) is installed on the moving seat (200).

2. The riveting device according to claim 1, characterized in that: The moving seat (200) includes a main body (210) and a limiting block (220). The main body (210) is provided with an installation hole (211), the installation hole (211) is coaxially arranged with the first through hole (111), a narrowing section (212) is arranged at one end of the installation hole (211) close to the first through hole (111), the limiting block (220) is detachably arranged at the other end of the installation hole (211), the installation hole (211) is used for installing the riveting structure (300) and the blind rivet assembly (400), and the limiting block (220) and the narrowing section (212) can limit the positions of the riveting structure (300) and the blind rivet assembly (400).

3. The riveting device according to claim 2, wherein: The riveting structure (300) is a bolt, and the bolt includes the riveting stud portion (310) and a bolt head portion (320). The bolt head portion (320) is connected to one end of the riveting stud portion (310). In the riveting state, the bolt passes through the installation hole (211), and the bolt head is limited between the narrowing section (212) and the limiting block (220).

4. The riveting device according to claim 2, characterized in that: The blind rivet assembly (400) includes at least two clamping jaws (410). In the blind riveting state, all the clamping jaws (410) are arranged in the installation hole (211) around the hole axis of the first through hole (111), a mandrel clamping position (401) is formed between the clamping jaws (410), the clamping jaws (410) can approach or separate from each other, the moving seat (200) is provided with an elastic member (230), the elastic member (230) is located between the limiting block (220) and the clamping jaws (410) and can apply a force to the clamping jaws (410) towards the narrowing section (212), and the narrowing section (212) is conical and the small end is close to the first through hole (111).

5. The riveting device according to claim 4, characterized in that: The core-pulling rivet assembly (400) further includes a slip ring (420). The slip ring (420) is slidably connected within the mounting hole (211). One end of the elastic member (230) abuts against the limiting block (220), and the other end of the elastic member (230) abuts against one side of the slip ring (420). The other side of the slip ring (420) abuts against all of the jaws (410).

6. The riveting device according to claim 4, characterized in that: One side of the jaw (410) close to the nail core clamping position (401) is uneven.

7. The riveting device according to claim 4, wherein: One end of the jaw (410) close to the first through hole (111) is provided with a guiding surface (411). The distance between the end of the guiding surface (411) close to the first through hole (111) and the axis of the first through hole (111) is greater than the distance between the other end of the guiding surface (411) and the axis of the first through hole (111).

8. The riveting device according to claim 2, wherein: A second through hole (221) is provided in the middle of the limiting block (220).

9. The riveting device according to claim 1, characterized in that: The base body (100) includes a main frame body (120) and a rotating sleeve (130). The rotating sleeve (130) is rotatably arranged on the main frame body (120). The rotating sleeve (130) is provided with a first threaded hole (131), and the first threaded hole (131) is coaxially arranged with the first through hole (111). The moving seat (200) is provided with an external threaded portion, and the moving seat (200) is threadedly connected to the first threaded hole (131) through the external threaded portion. The moving seat (200) is slidably connected to the main frame body (120).

10. The riveting device according to claim 9, characterized in that: The stopper (110) is detachably connected to the main frame body (120).

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