Electric rivet gun

Abstract

An electric rivet gun, used to drive a rivet member to perform a riveting operation, and comprising: a gun body assembly; a riveting mechanism, disposed within the gun body assembly and used to perform rivet insertion, riveting, and rivet removal on the rivet member; a driving mechanism, disposed within the gun body assembly and used to drive the riveting mechanism to operate; and a control mechanism, disposed at an end of the gun body assembly and used to control the driving mechanism to turn on and off. The riveting mechanism comprises a rivet insertion transmission shaft and a transmission head, one end of the rivet insertion transmission shaft is connected to an output end of the driving mechanism, the other end of the rivet insertion transmission shaft is provided with a damping member and is connected to the transmission head by means of the damping member, and the damping member is used to enable the rivet insertion transmission shaft and the transmission head to synchronously rotate during rivet insertion or rivet removal. According to the electric rivet gun, a drawing threaded rod can be prevented from fracturing and the thread thereof can be prevented from being damaged, thereby reducing maintenance costs of the rivet gun and prolonging the service life of the rivet gun.

Description

An electric rivet gun Technical Field

[0001] The utility model relates to the technical field of rivet guns, in particular to an electric rivet gun. Background Art

[0002] A rivet nut is a nail-like object used to connect two parts or components with a through-hole and a cap at one end. In riveting, it uses its own deformation or interference fit to connect the riveted parts, making it a common riveted component. Traditional manual riveting tools have been eliminated due to their laborious operation. Most pneumatic or electric rivet guns are used. However, pneumatic rivet guns use compressed air as a power source, which limits their scope of use. Electric rivet guns have become the mainstream in the market. Most electric rivet guns currently on the market use a motor to drive a pull screw, which screws the rivet nut onto the pull screw. The motor continuously drives the pull screw, which, through the threaded connection, rivets the nut. This method of riveting is very damaging to the pull screw, and prolonged use can easily lead to breakage of the pull screw and damage to the threads. Summary of the Invention

[0003] The utility model aims to solve the problem that the pulling screw rod is easily broken and the thread is damaged due to the pulling riveting method of the electric riveting gun in the prior art.

[0004] In order to achieve the above-mentioned object, the utility model provides an electric rivet gun for driving riveted parts to perform riveting work, comprising:

[0005] handle assembly;

[0006] A power supply assembly is provided below the handle assembly;

[0007] A gun body assembly is provided above the handle assembly;

[0008] A riveting mechanism is provided in the gun body assembly and is used for riveting, riveting and unriveting the riveted parts;

[0009] A driving mechanism, disposed in the gun body assembly, for driving the riveting mechanism to work;

[0010] A control mechanism is provided at one end of the gun body assembly and is used to control the opening and closing of the drive mechanism.

[0011] Among them, the riveting mechanism includes a riveting transmission shaft and a transmission head. One end of the riveting transmission shaft is connected to the output end of the driving mechanism, and the other end of the riveting transmission shaft is provided with a damping member and is connected to the transmission head through the damping member. The damping member is used to enable the riveting transmission shaft and the transmission head to rotate synchronously during riveting or unriveting.

[0012] According to another specific embodiment of the present invention, a through hole is opened on the riveting transmission shaft corresponding to the damping member, and a damping spring is provided in the through hole. The damping spring is used to ensure that the damping member generates sufficient damping torque.

[0013] According to another specific embodiment of the present invention, a rivet sliding core is provided on the outer side of the riveting transmission shaft, and one end of the rivet sliding core is threadedly connected to the output end of the driving mechanism for radially moving the rivet sliding core during riveting.

[0014] According to another specific embodiment of the present utility model, one end of the rivet sliding core is connected to a connecting shaft, the connecting shaft is threadedly connected to the transmission head, one end of the connecting shaft is connected to a rivet head, one end of the rivet head is provided with a drawing screw, and the drawing screw is provided with a thread for connecting with the rivet part.

[0015] According to another specific embodiment of the present invention, the rivet sliding core outer shell is provided with a sliding core seat, and a first spring is provided between the rivet sliding core and the sliding core seat, and the first spring is used to maintain a threaded connection between the transmission head and the connecting shaft.

[0016] According to another specific embodiment of the present utility model, a second spring is provided between the rivet sliding core and the driving mechanism, and the second spring is used to maintain a threaded connection between the rivet sliding core and the output end of the driving mechanism.

[0017] According to another specific embodiment of the present utility model, the driving mechanism includes a driving member and a reduction mechanism, the output end of the driving member is connected to the reduction mechanism, the driving member is used to drive the reduction mechanism, the reduction mechanism is provided with a push-pull shaft, and the push-pull shaft is provided with a thread connected to the riveting mechanism.

[0018] According to another specific embodiment of the present invention, the cross-section of one end of the riveting drive shaft is triangular, and one end of the push-pull shaft is provided with a triangular connecting hole that cooperates with the riveting drive shaft and is used to transmit the rotation of the riveting drive shaft.

[0019] According to another specific embodiment of the present utility model, the control mechanism includes a display screen and a control button, the display is used to display the riveting distance of the riveting mechanism, and the control button is used to adjust the driving mechanism, thereby adjusting the riveting distance of the riveting mechanism.

[0020] According to another specific embodiment of the present invention, the power supply assembly is connected to the control mechanism for providing power to the control mechanism, and a switch trigger is provided on the gun body assembly, and the switch trigger is used to turn on or off the electric rivet gun. Beneficial effects

[0021] The utility model provides an electric rivet gun, which has the following beneficial effects:

[0022] 1. The utility model opens the driving mechanism through the control mechanism, so that the driving mechanism drives the rivet pulling mechanism to rotate, and the rivet gun performs the movements of advancing, riveting and unriveting. The rivet feeding transmission shaft is connected to the transmission head through the damping member, so that when the rivet pulling mechanism is advancing or unriveting, the rivet feeding transmission shaft can drive the transmission head to rotate, thereby enabling the rivet gun to advance and unrivet. When the rivet pulling mechanism is riveting, the rivet feeding transmission shaft rotates in the transmission head, thereby stopping the rotation of the pulling screw, and riveting the riveted parts through the threaded connection between the pulling core and the push-pull shaft, thereby avoiding the breakage of the pulling screw and the damage of the thread, reducing the maintenance cost of the rivet gun, and improving the service life of the rivet gun.

[0023] 2. The utility model adjusts the rivet stroke of the rivet gun through the control button on the control mechanism, so that the rivet gun can be suitable for riveted parts of different models and lengths, avoiding the problem of loose riveting due to too long rivet stroke and excessive riveting force due to too short rivet stroke, which may cause damage to the rivet gun and riveted parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The drawings constituting part of this application are provided to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are provided to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0025] FIG1 schematically shows a first perspective view of an electric rivet gun according to the present invention;

[0026] FIG2 schematically shows a second perspective view of an electric rivet gun according to the present invention;

[0027] FIG3 schematically shows a perspective view of a riveting mechanism of an electric riveting gun according to the present invention;

[0028] FIG4 schematically shows a schematic structural diagram of a riveting mechanism and a driving mechanism of an electric riveting gun according to the present invention;

[0029] FIG5 schematically shows a cross-sectional view of the interior of an electric rivet gun according to the present invention;

[0030] FIG6 schematically shows a perspective view of a rivet feed drive shaft and a connector of an electric rivet gun according to the present invention;

[0031] FIG7 schematically shows a perspective view of a rivet feed drive shaft of an electric rivet gun according to the present invention;

[0032] FIG8 schematically shows a three-dimensional diagram of a deceleration mechanism of an electric rivet gun according to the present invention.

[0033] The reference numerals in the figure are: 1 is the handle assembly, 2 is the power supply assembly, 3 is the gun body assembly, 4 is the rivet mechanism, 41 is the rivet feed transmission shaft, 411 is the damping member, 412 is the damping spring, 42 is the transmission head, 43 is the rivet sliding core, 44 is the connecting shaft, 45 is the rivet head, 46 is the pulling screw, 47 is the sliding core seat, 48 is the first spring, 49 is the second spring, 5 is the driving mechanism, 51 is the driving member, 52 is the speed reduction mechanism, 53 is the push-pull shaft, and 6 is the control mechanism. DETAILED DESCRIPTION

[0034] The following is an explanation of the implementation of the present invention by means of specific specific embodiments. Those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. Although the description of the present invention will be introduced in conjunction with the preferred embodiment, this does not mean that the features of this utility model are limited to this implementation. On the contrary, the purpose of introducing the utility model in conjunction with the implementation is to cover other options or modifications that may be extended based on the claims of the present invention. In order to provide an in-depth understanding of the present invention, the following description will contain many specific details. The present invention can also be implemented without using these details. In addition, in order to avoid confusion or blurring the focus of the present invention, some specific details will be omitted in the description. It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0035] In the description of this embodiment, it should be noted that the terms "upper", "lower", "inner", "bottom", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as a limitation on the utility model.

[0036] The terms “first”, “second”, etc. are only used for distinguishing descriptions and should not be understood as indicating or implying relative importance.

[0037] In the description of this embodiment, it should be noted that, unless otherwise expressly specified or limited, the terms "provided with," "disposed," "connected," and "connected" should be understood broadly. For example, they may refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this embodiment based on the specific circumstances.

[0038] As shown in Figures 1 to 7, an electric rivet gun is used to drive riveted parts for riveting work, including: a handle assembly 1; a power supply assembly 2, located below the handle assembly 1; a gun body assembly 3, located above the handle assembly 1; a riveting mechanism 4, located in the gun body assembly 3, for riveting, riveting and unriveting the riveted parts; a driving mechanism 5, located in the gun body assembly 3, for driving the riveting mechanism 4 to work; a control mechanism 6, located at one end of the gun body assembly 3, for controlling the opening and closing of the driving mechanism 5, wherein the riveting mechanism 4 includes a riveting drive shaft 41 and a transmission head 42, one end of the riveting drive shaft 41 is connected to the output end of the driving mechanism 5, and the other end of the riveting drive shaft 41 is provided with a damping member 411, and is connected to the transmission head 42 through the damping member 411, and the damping member 411 is used to enable the riveting drive shaft 41 and the transmission head 42 to rotate synchronously when riveting or unriveting.

[0039] That is, the electric rivet gun mainly consists of a handle assembly 1, a power supply assembly 2, a gun body assembly 3, a riveting mechanism 4, a driving mechanism 5 and a control mechanism 6. Among them, the handle assembly 1, the power supply assembly 2 and the gun body assembly 3 together constitute the main structure of the electric rivet gun. The gun body assembly 3 is installed above the handle assembly 1, and the power supply assembly 2 is installed below the handle assembly 1. The power supply assembly 2 is connected to the handle assembly 1 through a quick-release structure, which is convenient for replacement when the power supply assembly 2 is low on power. In addition, a switch trigger is provided on the handle assembly 1, and the switch trigger is used to turn the electric rivet gun on or off.

[0040] Referring to Figures 1 to 4, in this embodiment, the riveting mechanism 4, the driving mechanism 5 and the control mechanism 6 are all arranged on the gun body assembly 3, wherein the riveting mechanism 4 and the driving mechanism 5 are arranged inside the gun body assembly 3, and the riveting mechanism 4 extends from one end of the gun body assembly 3 for operating the riveted parts, and the control mechanism 6 is arranged at the other end of the gun body assembly 3.

[0041] Further, referring to Figures 1 to 6, in the present application, the riveting mechanism 4 includes a riveting transmission shaft 41 and a transmission head 42. One end of the riveting transmission shaft 41 is connected to the driving mechanism 5 and the other end is provided with a damping member 411. The riveting transmission shaft 41 is connected to the transmission head 42 through the damping member 411, so that when the riveting transmission shaft 41 rotates, the transmission head 42 rotates synchronously due to the damping force. The transmission head 42 is cylindrical and has an external thread on the outside. A connecting hole is provided at one end of the transmission head 42 to be connected to the riveting transmission shaft 41.

[0042] That is, the control mechanism 6 turns on the driving mechanism 5, causing the driving mechanism 5 to drive the riveting mechanism 4 to rotate, causing the riveting gun to perform riveting, riveting, and unriveting movements. Specifically, the riveting drive shaft 41 is connected to the transmission head 42 via the damping member 411, so that when the riveting mechanism 4 is riveting or unriveting, the riveting drive shaft 41 can drive the transmission head 42 to rotate, thereby causing the riveting gun to perform riveting or unriveting. When the riveting mechanism 4 is riveting, the riveting drive shaft 41 rotates within the transmission head 42, thereby stopping the riveting gun from rotating and performing riveting.

[0043] It should be noted that the present application does not limit the specific structure of the damping member 411, and a reasonable selection can be made according to actual conditions. Specifically, the damping member 411 can be a damper, a damping plate or a rubber ring, as long as it can increase the damping force between the riveting drive shaft 41 and the drive head 42.

[0044] Specifically, as shown in Figures 6 and 7, in this embodiment, a through hole is opened on the riveting transmission shaft 41 corresponding to the damping member 411, and a damping spring 412 is provided in the through hole. The damping spring 412 is used to ensure that the damping member 411 generates sufficient damping torque.

[0045] That is to say, the surface of one end of the riveting transmission shaft 41 is a concave-convex structure, and a through hole is opened at the concave part of the riveting transmission shaft 41. The through hole penetrates the riveting transmission shaft 41 along the radial direction of the riveting transmission shaft 41. A damping spring 412 is provided in the through hole, and a damping member 411 is provided at the concave part of the riveting transmission shaft 41. The damping member 411 is a rubber ring. The damping spring 412 provides tension to maintain the damping force between the damping member 411 and the transmission head 42, so as to avoid wear of the damping member 411, which leads to a reduction in the damping force and an inability to drive the transmission head 42.

[0046] As shown in Figures 3 to 5, in this embodiment, a rivet slide core 43 is sleeved on the outer side of the rivet feed transmission shaft 41. One end of the rivet slide core 43 is threadedly connected to the output end of the drive mechanism 5, which is used to move the rivet slide core 43 radially during rivet drawing. One end of the rivet slide core 43 is connected to a connecting shaft 44, which is threadedly connected to the transmission head 42. One end of the connecting shaft 44 is connected to a rivet head 45, and one end of the rivet head 45 is provided with a pulling screw 46, which is provided with threads for connecting to the rivet member.

[0047] Specifically, the rivet sliding core 43 is a hollow structure, and an installation port is provided on the side wall of the rivet sliding core 43. The installation port is used to install the transmission head 42 into the rivet sliding core 43, so that the transmission head 42 cannot leave the rivet sliding core 43 after being connected to the rivet driving shaft 41. One end of the rivet driving shaft 41 extends into the rivet sliding core 43, and the transmission head 42 is threadedly connected to one end of the connecting shaft 44 in the rivet sliding core 43; the driving mechanism 5 drives the rivet driving shaft 41 to rotate, thereby causing the transmission head 42 to drive the connecting shaft 44 to rotate, and then the pulling screw 46 to rotate to perform riveting. When the moving head 42 and the connecting shaft 44 are threadedly connected to the bottom, the rivet is riveted onto the pulling screw 46, and the bottom of the rivet presses against the rivet gun to provide a certain resistance, so that the damping force provided by the damping member 411 can no longer drive the transmission head 42 to rotate. The output shaft of the driving mechanism 5 rotates to thread the rivet sliding core 43 to it, so that the rivet sliding core 43 moves radially to rivet the rivet. When unriveting, the driving mechanism 5 reverses to make the rivet drive shaft 41 drive the transmission head 42 to reverse, thereby reversing the pulling screw 46 and unriveting the rivet from the pulling screw 46.

[0048] It should be noted that in this embodiment, the rivet member is a rivet nut. The electric rivet gun can drive the pull screw 46 to rotate through the driving mechanism 5, so that the rivet nut is screwed onto the pull screw 46. The driving mechanism 5 drives the pull screw 46 to rotate, and the rivet nut is riveted through the threaded connection. In other embodiments, the rivet member can also have other structures, and this application is not limited to this.

[0049] As shown in Figures 3 to 5, in this embodiment, a core seat 47 is provided on the outer cover of the rivet sliding core 43, and a first spring 48 is provided between the rivet sliding core 43 and the core seat 47. The first spring 48 is used to keep the transmission head 42 and the connecting shaft 44 in threaded connection. A second spring 49 is provided between the rivet sliding core 43 and the driving mechanism 5, and the second spring 49 is used to keep the rivet sliding core 43 in threaded connection with the output end of the driving mechanism 5.

[0050] That is to say, a first retaining ring is provided on the outside of the rivet sliding core 43, a second retaining ring is provided on the inside of the sliding core seat 47, and a first spring 48 is provided between the first retaining ring and the second retaining ring, so that the transmission head 42 and the connecting shaft 44 maintain a threaded connection state, and a second spring 49 is provided between the first retaining ring and the driving mechanism 5, so that the rivet sliding core 43 and the output end of the driving mechanism 5 maintain a threaded connection state.

[0051] It should be noted that the present application does not limit the specific function of the driving mechanism 5, and a reasonable selection can be made according to actual conditions. It only needs to ensure that the driving mechanism 5 can drive the riveting transmission shaft 41 to rotate.

[0052] Specifically, as shown in Figures 4 and 5, in this embodiment, the driving mechanism 5 includes a driving member 51 and a reduction mechanism 52. The output end of the driving member 51 is connected to the reduction mechanism 52. The driving member 51 is used to drive the reduction mechanism 52. The reduction mechanism 52 is provided with a push-pull shaft 53. The push-pull shaft 53 is provided with a thread connected to the riveting mechanism 4.

[0053] That is, the driving mechanism 5 is composed of a driving member 51 and a reduction mechanism 52. Preferably, the driving member 51 is a motor for driving the reduction mechanism 52, and the output end of the driving member 51 is connected to the input end of the reduction mechanism 52. Preferably, the reduction mechanism 52 is a reduction box, which is used to reduce the high speed transmitted by the driving member 51 and increase the rotational torque, and outputs it to the riveting mechanism 4 through the push-pull shaft 53.

[0054] It should be noted that the present application does not limit the specific result of the connection between the push-pull shaft 53 and the riveting drive shaft 41, and a reasonable choice can be made according to actual conditions. Specifically, the push-pull shaft 53 and the riveting drive shaft 41 can be connected by a coupling, a key sleeve or a triangular rod, etc., and it is only necessary to ensure the transmission of the push-pull shaft 53 and the riveting drive shaft 41.

[0055] Specifically, as shown in Figures 3 to 7, in this embodiment, the cross-section of one end of the riveting drive shaft 41 is triangular, and one end of the push-pull shaft 53 is provided with a triangular connecting hole that cooperates with the riveting drive shaft 41 for transmitting the rotation of the riveting drive shaft 41.

[0056] That is to say, a triangular connecting rod is provided at one end of the riveting transmission shaft 41, and a triangular connecting hole is opened on one end face of the push-pull shaft 53 to cooperate with the connecting rod. The push-pull shaft 53 and the riveting transmission shaft 41 are transmitted in cooperation through the cooperation between the connecting rod and the connecting hole.

[0057] In other embodiments, the riveting transmission shaft 41 may also have other structures, for example, its cross section may also be a polygonal structure such as a hexagon or a quadrilateral. Accordingly, the push-pull shaft 53 and the riveting transmission shaft 41 may also be connected by pin connection, snap connection, etc. This application does not limit this, as long as the connection and transmission between the push-pull shaft 53 and the riveting transmission shaft 41 can be achieved.

[0058] As shown in FIG5 , in this embodiment, the control mechanism 6 includes a display screen and control buttons. The display screen is used to display the riveting distance of the riveting mechanism 4 , and the control buttons are used to adjust the driving mechanism 5 , thereby adjusting the riveting distance of the riveting mechanism 4 .

[0059] That is to say, the display screen can display the riveting distance of the rivet gun, and the riveting distance of the rivet gun can be adjusted through the control button, so that the rivet gun can rivet riveted parts of different models and lengths, ensuring the riveting effect of the rivet gun on the riveted parts.

[0060] In other embodiments, the display screen can also display other riveting parameters of the rivet gun, such as the movement time of the driving member 51, the rotation speed of the driving member 51 and the rotation stroke of the driving member 51. The present application does not limit this, as long as the relevant parameters for adjusting the riveting distance can be displayed.

[0061] As shown in Figures 2 to 5, in this embodiment, the power supply assembly 2 is connected to the control mechanism 6 to provide power to the control mechanism 6. A switch trigger is provided on the handle assembly 1, and the switch trigger is used to turn on or off the electric rivet gun.

[0062] That is to say, by pressing the switch trigger, the control mechanism 6 controls the movement of the driving mechanism 5, so that the driving mechanism 5 drives the riveting mechanism 4 to perform riveting, riveting and unriveting on the riveted parts at one time, and automatically closes the driving mechanism 5 after completion.

[0063] In general, the present application provides an electric rivet gun, which opens the driving mechanism 5 through the control mechanism 6, and the output end of the driving member 51 is connected to the input end of the speed reduction mechanism 52. The speed reduction mechanism 52 is used to reduce the high speed transmitted by the driving member 51 and increase the rotational torque, and is output to the rivet drive shaft 41 by the push-pull shaft 53. Since the damping member 411 provides a damping force between the transmission head 42 and the rivet drive shaft 41, the rivet drive shaft 41 drives the transmission head 42 to rotate, thereby causing the transmission head 42 to drive the connecting shaft 44 to rotate, and then the pulling screw 46 is rotated to perform riveting. When the transmission head 42 is threaded with the connecting shaft 44, the rivet drive shaft 41 drives the transmission head 42 to rotate. When connected to the bottom, the rivet is riveted onto the pulling screw 46, and the bottom of the rivet presses against the rivet gun to provide a certain resistance, so that the damping force provided by the damping member 411 can no longer drive the transmission head 42 to rotate, and the push-pull shaft 53 rotates to make the rivet sliding core 43 and the threaded connection therebetween, so that the rivet sliding core 43 drives the pulling screw 46 to move radially to rivet the rivet. When unriveting, the driving mechanism 5 reverses to make the rivet drive shaft 41 drive the transmission head 42 to reverse, so that the pulling screw 46 reverses, and the rivet is unriveted from the pulling screw 46. After the unriveting is completed, the driving mechanism 5 stops automatically, completing the riveting of the rivet.

[0064] In summary, the above embodiments of the present invention are merely illustrative of the principles and effects of the present invention and are not intended to limit the present invention. Anyone skilled in the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by persons skilled in the art without departing from the spirit and technical concepts disclosed herein shall be covered by the claims of the present invention.

Claims

1. An electric rivet gun, used to drive riveted parts to perform riveting work, characterized in that: include: Handle assembly; A power supply assembly is disposed below the handle assembly; A gun body assembly, disposed above the handle assembly; A riveting mechanism is provided in the gun body assembly and is used for riveting, riveting and unriveting the riveted parts; A driving mechanism, disposed in the gun body assembly, for driving the riveting mechanism to work; A control mechanism, disposed at one end of the gun body assembly, for controlling the opening and closing of the drive mechanism; Among them, the riveting mechanism includes a riveting transmission shaft and a transmission head, one end of the riveting transmission shaft is connected to the output end of the driving mechanism, and the other end of the riveting transmission shaft is provided with a damping member and is connected to the transmission head through the damping member, and the damping member is used to enable the riveting transmission shaft and the transmission head to rotate synchronously when the rivet gun is riveting or unriveting.

2. The electric rivet gun according to claim 1, characterized in that: A through hole is provided on the riveting transmission shaft at a position corresponding to the damping member, a damping spring is provided in the through hole, and the damping spring is used to ensure that the damping member generates sufficient damping torque.

3. The electric rivet gun according to claim 1, characterized in that: A rivet sliding core is sleeved on the outer side of the riveting transmission shaft, and one end of the rivet sliding core is threadedly connected to the output end of the driving mechanism, so as to enable the rivet sliding core to move radially when the rivet gun is riveting.

4. The electric rivet gun according to claim 3, characterized in that: One end of the rivet sliding core is connected to a connecting shaft, which is threadedly connected to the transmission head. One end of the connecting shaft is connected to a rivet head, and one end of the rivet head is provided with a drawing screw, which is provided with threads for connecting with the rivet piece.

5. The electric rivet gun according to claim 4, characterized in that: The rivet sliding core outer shell is provided with a sliding core seat, and a first spring is provided between the rivet sliding core and the sliding core seat. The first spring is used to keep the transmission head in threaded connection with the connecting shaft.

6. The electric rivet gun according to claim 5, characterized in that: A second spring is provided between the rivet sliding core and the driving mechanism, and the second spring is used to keep the rivet sliding core in threaded connection with the output end of the driving mechanism.

7. The electric rivet gun according to claim 1, characterized in that: The driving mechanism comprises a driving member and a reduction mechanism, wherein the output end of the driving member is connected to the reduction mechanism, the driving member is used to drive the reduction mechanism, a push-pull shaft is provided on the reduction mechanism, and the push-pull shaft is connected to the riveting mechanism via a thread.

8. The electric rivet gun according to claim 7, characterized in that: The cross section of one end of the advance riveting transmission shaft is triangular, and one end of the push-pull shaft is provided with a triangular connecting hole matched with the advance riveting transmission shaft for transmitting and rotating the advance riveting transmission shaft.

9. The electric rivet gun according to claim 1, characterized in that: The control mechanism comprises a display screen and a control button, wherein the display screen is used to display the riveting distance of the riveting mechanism, and the control button is used to adjust the driving mechanism, thereby adjusting the riveting distance of the riveting mechanism.

10. The electric rivet gun according to claim 1, characterized in that: The power supply assembly is connected to the control mechanism and is used to provide power to the control mechanism. A switch trigger is provided on the gun body assembly and is used to turn on or off the rivet gun.

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