Handheld nut riveting device

Abstract

The utility model belongs to the field of nut installation, and particularly relates to a handheld nut riveting device. The handheld nut riveting device comprises a first motor, a first movement assembly, a second motor, a second movement assembly and a shell. The first motor is fixed in the middle of the interior of the shell, and the first motor drives the first movement assembly to rotate through a rotating mechanism of the first motor; the first movement assembly is rotationally connected with the second movement assembly; the second motor is fixed to the tail end in the shell, and the second motor drives the second movement assembly to rotate through a rotating mechanism of the second motor so as to drive the second movement assembly to move in the axial direction; the second movement assembly drives the first movement assembly to move in the axial direction when moving in the axial direction. The nut rivet pulling device solves the problem that the nut rivet pulling device cannot be used for handheld operation to install rivet pulling nuts with different angles and different structures.

Description

Technical Field

[0001] The utility model belongs to the field of nut installation, and in particular relates to a handheld nut riveting device. Background Art

[0002] The nut riveting device is a device used for fastening metal sheets, thin tubes and other materials. It fixes the nut on the material by riveting without welding or tapping. This device is widely used in the assembly of electromechanical and light industrial products such as automobiles, aviation, instruments, furniture, and decoration.

[0003] At present, the installation method of the rivet nut is usually: put the rivet nut into the installation hole, use the nut rivet device to screw in the rivet nut, then rivet, and finally screw the nut rivet device out of the rivet nut to achieve the purpose of installation. Therefore, the nut rivet device has the rotation function of screwing in the rivet nut and the displacement function of rivet.

[0004] The motor structure of the current nut riveting device is externally mounted on the outside of the motion structure and installed on a large riveting device, resulting in a large size and volume. Such a nut riveting device cannot be used for handheld operation to install rivet nuts at different angles and structures. Utility Model Content

[0005] The purpose of the embodiment of the utility model is to provide a handheld nut riveting device, aiming to solve the problem that the nut riveting device cannot be used for handheld operation to install rivet nuts at different angles and different structures.

[0006] The embodiment of the utility model is implemented as follows: a handheld nut riveting device, the handheld nut riveting device comprising: a first motor, a first motion assembly, a second motor, a second motion assembly and a housing;

[0007] The first motor is fixed in the middle of the housing, the rotating mechanism is fixed to the first moving component, and the first motor drives the first moving component to rotate through the rotating mechanism of the first motor to realize the rotation function of the handheld nut riveting device;

[0008] The first motion component passes through the first motor, penetrates into the second motion component, and is rotationally connected with the second motion component, and one end of the first motion component that penetrates into the second motion component is in contact with the second motion component;

[0009] The second motor is fixed at the end of the housing, the rotating mechanism is fixed to the second motion component, and the second motor drives the second motion component to rotate through the rotating mechanism of the second motor to drive the axial movement of the second motion component;

[0010] One end of the second motion component away from the second motor contacts the middle of the first motion component, and when the second motion component moves axially, it drives the first motion component to move axially to realize the displacement function of the handheld nut riveting device.

[0011] Preferably, the first motor is a frameless torque hollow motor.

[0012] Preferably, the first motion assembly includes a first pull rod, a second pull rod, a third pull rod and a fourth pull rod;

[0013] One end of the first pull rod is provided with a thread for screwing into a nut, passing through the housing and extending outside the housing;

[0014] The second pull rod is configured as a sleeve structure, one end of the second pull rod is fixed to the end of the first pull rod without threads, and the other end of the second pull rod is fixed to one end of the third pull rod;

[0015] The third pull rod is configured as a square cylinder;

[0016] The fourth pull rod is configured as a cylinder, one end of the fourth pull rod is fixed to the end of the third pull rod away from the second pull rod, and the other end is provided with a first protrusion. The fourth pull rod passes through the first motor, penetrates into the second motion component, and is rotationally connected to the second motion component, and the first protrusion is in contact with the second motion component.

[0017] Preferably, the first motion assembly and the first motor are fixed via a flange;

[0018] A square through hole matched with the third pull rod is provided in the middle of the flange, and the flange is fixed to the rotating mechanism of the first motor. When the first motor rotates, it drives the flange to rotate and then drives the third pull rod to rotate, thereby driving the first motion component to rotate.

[0019] Preferably, the second motor is a servo motor.

[0020] Preferably, the second motion assembly includes a rotating assembly and a screw rod;

[0021] One end of the rotating assembly is fixed to the rotating structure of the second motor, and the inner side is rotationally connected to the screw rod. The second motor rotates to drive the rotating assembly to rotate, thereby causing the screw rod to move axially.

[0022] The screw rod is a sleeve structure, and the screw rod passes through the rotating component and is rotationally connected to the rotating component. The fourth pull rod passes through the inside of the screw rod, and the screw rod is rotationally connected to the fourth pull rod. The end of the screw rod that does not pass through the rotating component contacts the middle part of the fourth pull rod, and the end of the screw rod that passes through the rotating component contacts the first protrusion.

[0023] Preferably, a second protrusion in contact with the screw rod is provided at the middle of the fourth pull rod;

[0024] The second protrusion is configured as a hollow cylinder adapted to the fourth pull rod.

[0025] Preferably, the housing is provided with a handle.

[0026] Preferably, the handheld nut riveting device further includes a switch;

[0027] The switch is arranged in the handle, and the switch is electrically connected to the first motor and the second motor, and is used to control the on and off of the first motor and the second motor.

[0028] Preferably, the handheld nut riveting device further comprises a battery;

[0029] The battery is arranged in the handle and is electrically connected to the switch for providing electrical energy.

[0030] The handheld nut riveting device provided by the embodiment of the utility model has the following beneficial effects:

[0031] The first moving component passes through the first motor, eliminating the problem of increased size caused by the motor being mounted externally. At the same time, the first moving component passes through the second moving component, reducing the axial size of a handheld nut riveting device. This achieves a reduction in size and volume, and also reduces weight, so that the nut riveting device can be handheld, solving the problem that the nut riveting device cannot be used for handheld operation to install rivet nuts at different angles and structures. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 A three-dimensional structural diagram of a handheld nut riveting device provided in an embodiment of the utility model;

[0033] Figure 2 for Figure 1 The internal structure diagram with part of the shell removed;

[0034] Figure 3 A structural diagram of a first motor and a part of a first motion assembly and a second motion assembly provided in an embodiment of the utility model;

[0035] Figure 4 A structural diagram of a first moving assembly and a second protruding member provided in an embodiment of the utility model;

[0036] Figure 5 A structural diagram of a flange provided in an embodiment of the utility model.

[0037] In the accompanying drawings: 1. first motor; 2. first moving component; 21. first pull rod; 22. second pull rod; 23. third pull rod; 24. fourth pull rod; 25. first protrusion; 3. second motor; 4. second moving component; 41. rotating component; 42. screw; 5. housing; 51. handle; 6. flange; 61. square through hole; 7. second protrusion; 8. switch; 9. battery. DETAILED DESCRIPTION

[0038] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0039] The specific implementation of the present utility model is described in detail below in conjunction with specific embodiments.

[0040] like Figure 1-2 As shown, it is a structural diagram of a handheld nut riveting device provided by an embodiment of the utility model, comprising: a first motor 1, a first motion component 2, a second motor 3, a second motion component 4 and a housing 5;

[0041] The first motor 1 is fixed in the middle of the housing 5, and the rotating mechanism is fixed to the first motion component 2. The first motor 1 drives the first motion component 2 to rotate through the rotating mechanism of the first motor 1 to realize the rotation function of the handheld nut riveting device;

[0042] The first motion component 2 passes through the first motor 1, penetrates into the second motion component 4, and is rotationally connected with the second motion component 4. One end of the first motion component 2 that penetrates into the second motion component 4 is in contact with the second motion component 4.

[0043] The second motor 3 is fixed at the end of the housing 5, and the rotating mechanism is fixed to the second motion component 4. The second motor 3 drives the second motion component 4 to rotate through the rotating mechanism of the second motor 3 to drive the axial movement of the second motion component 4;

[0044] One end of the second motion component 4 away from the second motor 3 contacts the middle of the first motion component 2. When the second motion component 4 moves axially, it drives the first motion component 2 to move axially to realize the displacement function of the handheld nut riveting device.

[0045] In the embodiment of the utility model, the first motor 1 can be used in conjunction with a reducer, which changes the speed and output torque, and provides a large torque and a low speed. For a handheld nut riveting device, a large torque and a low speed can better ensure the safety and smoothness during the installation process. The same is true for the second motor 3. If the driving motor of the first motor 1 can provide a large torque, then the first motor 1 may not be used with a reducer. If the first motor 1 is not used with a reducer, then the rotating mechanism of the first motor 1 is the rotating mechanism of the driving motor. If the first motor 1 is used with a reducer, then the rotating mechanism of the first motor 1 is the rotating mechanism of the reducer. The same is true for the second motor 3.

[0046] In the embodiment of the utility model, the first motor 1 and the first motion component 2 are fixed only in the direction of rotation of the first motor 1. On the rotation axis of the first motor 1, the first motor 1 and the first motion component 2 are not fixed, and the first motion component 2 can perform axial translational motion along the rotation axis of the first motor 1.

[0047] In the embodiment of the utility model, the function of the second motion component 4 is to convert the rotational motion of the second motor 3 into the linear motion of the second motion component 4, so the second motion component 4 is a transmission component that can convert rotational motion into linear motion, such as a ball screw.

[0048] In the embodiment of the utility model, although the first motion component 2 is rotationally connected with the second motion component 4, the rotational movement of the second motion component 4 will not drive the first motion component 2 to rotate, and the rotational movement of the first motion component 2 will not affect the rotational movement of the second motion component. There is a rolling bearing between the first motion component 2 and the second motion component 4. The first motion component 2 does not completely pass through the second motion component 4, similar to being embedded in the second motion component 4. The rotation axis of the first motion component 2 is the same as the rotation axis of the second motion component 4. The rotation axis here refers to the geometric straight line on which the rotational symmetric action is performed, not a specific structure.

[0049] In the embodiment of the utility model, axial movement refers to the movement of the first motion component 2 or the second motion component 4 along the length direction of the rotating shaft, and the positive axial movement refers to the movement direction of the first motion component 2 toward the outside of the shell 5; the reverse axial movement refers to the movement direction of the first motion component 2 toward the inside of the shell 5.

[0050] In the embodiment of the utility model, the specific process during operation is that the first motor 1 rotates to drive the first motion component 2 to rotate, the second motor 3 rotates to make the second motion component 4 make a positive axial movement, and the first motion component 2 is screwed into the nut and the nut is riveted in cooperation with the rotation of the first motion component 2, the first motor 1 reverses to drive the first motion component 2 to reversely rotate, the second motor 3 reverses to make the second motion component 4 make a reverse axial movement, and the first motion component 2 is screwed out of the nut in cooperation with the reverse rotation of the first motion component 2.

[0051] In one example of the utility model, the first motion component 2 passes through the first motor 1, eliminating the problem of increased size caused by the motor being mounted externally. At the same time, the first motion component 2 passes through the second motion component 4, reducing the axial size of a handheld nut riveting device. This achieves a reduction in size and volume, and also reduces weight, so that the nut riveting device can be handheld, solving the problem that it cannot be used for handheld operation to install rivet nuts at different angles and structures.

[0052] like Figure 3 As shown, as a preferred embodiment of the utility model, the first motor 1 is a frameless torque hollow motor.

[0053] In the embodiment of the utility model, if the first motor 1 is matched with a reducer, the reducer is also a hollow structure, and the rotating mechanism of the first motor 1 is connected to the rotating input mechanism of the reducer.

[0054] like Figure 3-4 As shown, as a preferred embodiment of the utility model, the first motion assembly 2 includes a first pull rod 21, a second pull rod 22, a third pull rod 23 and a fourth pull rod 24;

[0055] One end of the first pull rod 21 is provided with a thread for screwing into a nut, passing through the housing 5 and extending outside the housing 5;

[0056] The second pull rod 22 is configured as a sleeve structure, one end of the second pull rod 22 is fixed to the end of the first pull rod 21 without threads, and the other end is fixed to one end of the third pull rod 23;

[0057] The third pull rod 23 is configured as a square cylinder;

[0058] The fourth pull rod 24 is configured as a cylinder, one end of the fourth pull rod 24 is fixed to the end of the third pull rod 23 away from the second pull rod 22, and the other end is provided with a first protrusion 25. The fourth pull rod 24 passes through the first motor 1, penetrates into the second motion component 4, and is rotationally connected to the second motion component 4. The first protrusion 25 is in contact with the second motion component 4.

[0059] In the embodiment of the present utility model, the first pull rod 21 is the core shaft.

[0060] In the embodiment of the utility model, the first pull rod 21 and the second pull rod 22 are fixed by a pin, and the side wall of the second pull rod 22 is provided with two waist-shaped holes along the length direction of the second pull rod 22, and the two waist-shaped holes are arranged opposite to each other. A circular through hole for the pin to pass through is provided on the first pull rod 21. The first pull rod 21 and the second pull rod 22 can also be fixedly connected by a thread.

[0061] In the embodiment of the utility model, the second pull rod 22 and the third pull rod 23 are fixedly connected by welding or the like, and the third pull rod 23 and the fourth pull rod 24 are fixedly connected by welding or the like. The second pull rod 22, the third pull rod 23 and the fourth pull rod 24 can be regarded as one pull rod and act synchronously.

[0062] In the embodiment of the utility model, the third pull rod 23 is configured as a square cylinder so that it can rotate along with the rotation of the first motor 1 and can move axially along the rotation axis of the first motion component 2 .

[0063] In the embodiment of the utility model, since the first motor 1 is a hollow motor, the hollow part of the hollow motor is generally circular, so the fourth pull rod 24 is set as a cylinder.

[0064] In the embodiment of the utility model, the first protruding member 25 may be a nut, and the first protruding member 25 is screwed onto the fourth pull rod 24 .

[0065] like Figure 5 As shown, as a preferred embodiment of the utility model, the first motion component 2 and the first motor 1 are fixed via a flange 6;

[0066] A square through hole 61 adapted to the third pull rod 23 is provided in the middle of the flange 6. The flange 6 is fixed to the rotating mechanism of the first motor 1. When the first motor 1 rotates, it drives the flange 6 to rotate and then drives the third pull rod 23 to rotate, thereby driving the first motion component 2 to rotate.

[0067] In the embodiment of the utility model, the first motion component 2 and the first motor 1 have no direct contact and are fixed via the flange 6 .

[0068] In the embodiment of the utility model, the third pull rod 23 only performs axial movement on the rotation axis of the first motion component 2 in the flange 6 and does not enter the hollow part of the first motor 1 .

[0069] In the embodiment of the utility model, the flange 6 and the housing are connected via a bearing.

[0070] In the embodiment of the utility model, the first motor 1 rotates to drive the flange 6 to rotate. The third pull rod 23 is passed through the directional through hole in the middle of the flange 6. When the flange 6 rotates, the third pull rod 23 rotates accordingly to drive the first motion component 2 to rotate.

[0071] like Figure 2 As shown, as a preferred embodiment of the present utility model, the second motor 3 is a servo motor.

[0072] In the embodiment of the present utility model, if the first motor 1 is matched with a reducer, the rotation mechanism of the first motor 1 is connected to the rotation input mechanism of the reducer.

[0073] like Figure 3 As shown, as a preferred embodiment of the present utility model, the second motion component 4 includes a rotating component 41 and a screw rod 42;

[0074] One end of the rotating assembly 41 is fixed to the rotating structure of the second motor 3, and the inner side is rotatably connected to the screw rod 42. The second motor 3 rotates to drive the rotating assembly 41 to rotate, thereby causing the screw rod 42 to move axially.

[0075] The screw rod 42 is a sleeve structure, and the screw rod 42 passes through the rotating component 41 and is rotationally connected to the rotating component 41. The fourth pull rod 24 passes through the inside of the screw rod 42, and the screw rod 42 is rotationally connected to the fourth pull rod 24. The end of the screw rod 42 that does not pass through the rotating component 41 contacts the middle of the fourth pull rod 24, and the end of the screw rod 42 that passes through the rotating component 41 contacts the first protrusion 25.

[0076] In the embodiment of the utility model, the second motion component 4 is essentially a ball screw. The rotating component 41 is equivalent to the nut and the ball in the ball screw, and the screw rod 42 is equivalent to the screw rod in the ball screw.

[0077] In the embodiment of the present utility model, combined with Figure 3 and Figure 4 As shown, the screw rod 42 is hollow inside. The fourth pull rod 24 penetrates the screw rod 42 and is rotatably connected to the screw rod 42 through a bearing. The fourth pull rod 24 passes through one end of the pull rod 21 and is provided with a first protrusion 25. The first protrusion 25 and the screw rod 42 are in contact through the bearing. When the second motor 3 reverses, the screw rod 42 moves axially in the opposite direction along the rotation axis of the second motion component 4, and the screw rod 42 pushes the first protrusion 25 through the bearing so that the fourth pull rod 24 follows the screw rod 42 to move axially in the opposite direction to reset.

[0078] In the embodiment of the utility model, since the screw rod 42 and the fourth pull rod 24 are connected via a bearing, the rotations of the two do not interfere with each other.

[0079] like Figure 4 As shown, as a preferred embodiment of the present utility model, a second protrusion 7 in contact with the screw rod 42 is provided at the middle of the fourth pull rod 24;

[0080] The second protrusion 7 is configured as a hollow cylinder adapted to the fourth pull rod 24 .

[0081] In the embodiment of the utility model, a bearing is arranged between the second protruding member 7 and the screw rod 42 .

[0082] In the embodiment of the utility model, when the screw rod 42 makes a positive axial movement, since the screw rod 42 contacts the second protrusion 7 through the bearing, the second protrusion 7 and the fourth pull rod 24 are fixed, so the fourth pull rod 24 makes a positive axial movement with the positive axial movement of the screw rod 42, thereby causing the first motion component 2 to make a positive axial movement.

[0083] In the embodiment of the utility model, the axial distance between the first protrusion 25 and the second protrusion 7 is matched with the axial length of the screw rod 42, that is, the screw rod 42 is clamped between the first protrusion 25 and the second protrusion 7. Therefore, when the screw rod 42 makes a positive axial movement, the fourth pull rod 24 makes a positive axial movement, and when the screw rod 42 makes a reverse axial movement, the fourth pull rod 24 makes a reverse axial movement.

[0084] like Figure 1 As shown, as a preferred embodiment of the present utility model, the housing 5 is provided with a handle 51 .

[0085] In the embodiment of the utility model, the handle 51 can be arranged in the middle of the housing 5 or close to the second motor 3 .

[0086] like Figure 2-3 As shown, as a preferred embodiment of the utility model, the handheld nut riveting device further includes a switch 8;

[0087] The switch 8 is disposed in the handle 51 , and the switch 8 is electrically connected to the first motor 1 and the second motor 3 , and is used to control the on and off of the first motor 1 and the second motor 3 .

[0088] In the embodiment of the present utility model, the switch 8 can be understood as a trigger.

[0089] like Figure 2-3 As shown, as a preferred embodiment of the utility model, the handheld nut riveting device further includes a battery 9;

[0090] The battery 9 is disposed in the handle 51 , and the battery 9 is electrically connected to the switch 8 for providing electrical energy.

[0091] In the embodiment of the utility model, the battery 9 is essentially electrically connected to the first motor 1 and the second motor 3, but a switch 8 is needed in the middle to control the on and off of power.

[0092] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A handheld nut riveting device, characterized in that: The handheld nut riveting device comprises: a first motor, a first moving assembly, a second motor, a second moving assembly and a housing; The first motor is fixed in the middle of the housing, the rotating mechanism is fixed to the first moving component, and the first motor drives the first moving component to rotate through the rotating mechanism of the first motor to realize the rotation function of the handheld nut riveting device; The first motion component passes through the first motor, penetrates into the second motion component, and is rotationally connected with the second motion component, and one end of the first motion component that penetrates into the second motion component is in contact with the second motion component; The second motor is fixed at the end of the housing, the rotating mechanism is fixed to the second motion component, and the second motor drives the second motion component to rotate through the rotating mechanism of the second motor to drive the axial movement of the second motion component; One end of the second motion component away from the second motor contacts the middle of the first motion component, and when the second motion component moves axially, it drives the first motion component to move axially to realize the displacement function of the handheld nut riveting device.

2. The handheld nut riveting device according to claim 1, characterized in that: The first motor is a frameless torque hollow motor.

3. The handheld nut riveting device according to claim 1, characterized in that: The first motion assembly includes a first pull rod, a second pull rod, a third pull rod and a fourth pull rod; One end of the first pull rod is provided with a thread for screwing into a nut, passing through the housing and extending outside the housing; The second pull rod is configured as a sleeve structure, one end of the second pull rod is fixed to the end of the first pull rod without threads, and the other end of the second pull rod is fixed to one end of the third pull rod; The third pull rod is configured as a square column; The fourth pull rod is configured as a cylinder, one end of the fourth pull rod is fixed to the end of the third pull rod away from the second pull rod, and the other end is provided with a first protrusion. The fourth pull rod passes through the first motor, penetrates into the second motion component, and is rotationally connected to the second motion component, and the first protrusion is in contact with the second motion component.

4. The handheld nut riveting device according to claim 3, characterized in that: The first motion component is fixed to the first motor via a flange; A square through hole matched with the third pull rod is provided in the middle of the flange, and the flange is fixed to the rotating mechanism of the first motor. When the first motor rotates, it drives the flange to rotate and then drives the third pull rod to rotate, thereby driving the first motion component to rotate.

5. The handheld nut riveting device according to claim 4, characterized in that: The second motor is a servo motor.

6. The handheld nut riveting device according to claim 4, characterized in that: The second motion assembly includes a rotating assembly and a screw rod; One end of the rotating assembly is fixed to the rotating structure of the second motor, and the inner side is rotationally connected to the screw rod. The second motor rotates to drive the rotating assembly to rotate, thereby causing the screw rod to move axially. The screw rod is a sleeve structure, the screw rod passes through the rotating component and is rotationally connected to the rotating component, the fourth pull rod passes through the inside of the screw rod, the screw rod is rotationally connected to the fourth pull rod, the end of the screw rod that does not pass through the rotating component contacts the middle of the fourth pull rod, and the end of the screw rod that passes through the rotating component contacts the first protrusion.

7. The handheld nut riveting device according to claim 6, characterized in that: A second protrusion in contact with the screw rod is provided at the middle of the fourth pull rod; The second protrusion is configured as a hollow cylinder adapted to the fourth pull rod.

8. The handheld nut riveting device according to claim 1, characterized in that: The housing is provided with a handle.

9. The handheld nut riveting device according to claim 8, characterized in that: The handheld nut riveting device also includes a switch; The switch is arranged in the handle, and the switch is electrically connected to the first motor and the second motor, and is used to control the on and off of the first motor and the second motor.

10. The handheld nut riveting device according to claim 9, characterized in that: The handheld nut riveting device also includes a battery; The battery is arranged in the handle and is electrically connected to the switch for providing electrical energy.

Images