Nut riveting device and system

Abstract

The utility model is applicable to the technical field of nut installation equipment, and provides a nut rivet pulling device and system.The nut rivet pulling device comprises a driving part and a gyroscope, the output end of the driving part is in transmission connection with a movement assembly, the driving part is used for driving the movement assembly to rotate, and the gyroscope is connected with the driving part and used for controlling the movement assembly to rotate. And the gyroscope is used for detecting the change of the inclination angle of the nut riveting device and outputting an electric signal. According to the nut rivet pulling device, the driving piece is arranged to drive the movement assembly to rotate, the movement assembly provides power, and the movement assembly is used for being connected with the nut and driving the nut to move so that the rivet pulling function of the nut rivet pulling device can be achieved; the gyroscope is used for detecting the dip angle change of the nut riveting device when the driving part drives the moving assembly to rotate and outputting an electric signal, so that the dip angle change is detected when the nut riveting device drives the nut to rotate, and the situation that the overall riveting accuracy is affected due to angle deviation when the nut is screwed into a material mounting position is avoided.

Description

A nut riveting device and system Technical Field

[0001] This utility model belongs to the technical field of nut installation equipment, and in particular relates to a nut riveting device and system. Background Technology

[0002] A nut riveting device is a fastening device used for connecting thin metal sheets, tubes, and other materials. It fixes the nut to the material by riveting, eliminating the need for 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] The installation method for rivet nuts is usually as follows: place the rivet nut into the mounting hole, use a rivet nut rivet device to screw the rivet nut in, then rivet it, and finally unscrew the rivet nut rivet device to remove the rivet nut, thereby achieving the purpose of installation.

[0004] In the existing technology, most nut riveting devices first screw the nut into a preset hole in the material, and then use the riveting device to apply axial tension to the nut. The nut moves a certain distance and is fixed on the material. Screwing the nut into the material is the first step, which drives the movement of the nut located in the preset hole. If the connection angle between the nut riveting device and the nut is incorrect or there is a deviation, it will affect the overall riveting accuracy. Summary of the Invention

[0005] The purpose of this utility model embodiment is to provide a nut riveting device, which aims to solve the problem that in most existing nut riveting devices, the first step is to screw the nut into a preset hole in the material, and then use the riveting device to apply axial tension to the nut, which moves the nut a certain distance and fixes it on the material. Screwing the nut into the material is the first step. If the angle of screwing the nut into the preset hole in the material is incorrect or there is a deviation, it will affect the overall riveting accuracy.

[0006] This utility model embodiment is implemented as follows: a nut riveting device, the nut riveting device comprising:

[0007] A driving component, the output end of which is connected to the motion component for transmission, the driving component is used to drive the motion component to rotate, and the motion component is used to connect with the nut on the mounting position so as to drive the nut to move so that the nut is installed on the product;

[0008] A gyroscope, connected to a drive component, is used to detect changes in the tilt angle of the nut rivet device and output an electrical signal.

[0009] Preferably, the gyroscope includes a vibrating element and a detection element, the vibrating element vibrates at a fixed frequency by electrostatic drive, and the vibrating element is electrically connected to the detection element.

[0010] Preferably, the detection element is attached to the drive component, and the detection element detects the displacement change of the vibrating component and outputs an electrical signal.

[0011] Preferably, the gyroscope further includes a driving electrode and a control module. The driving electrode is used to drive the vibrating element to vibrate. The driving electrode is electrically connected to the control module. The control module is electrically connected to the detection element. The control module is provided with an integrated circuit unit and a communication unit.

[0012] Preferably, the nut riveting device further includes a housing, which is composed of two half-shell structures joined together. The driving component is located in the internal cavity of the housing, and the moving component is located in the internal cavity of the housing and extends out of the housing at its end to drive the nut to rotate.

[0013] Preferably, the nut riveting device further includes a power module and a switch, the power module and the switch being located in the internal cavity of the housing, the power module being electrically connected to the drive component, and the switch being electrically connected to the power module.

[0014] Preferably, the outer wall of the outer casing is provided with a handle and a positioning ring, the two ends of the handle are respectively inserted into the opposite two sides of the outer casing, and the positioning ring is sleeved on the outer casing.

[0015] Preferably, the motion component includes a transmission component and a connecting member. The transmission component is connected to the output end of the drive component. The transmission component is used to drive the connecting member to rotate and / or move, and the connecting member is used to connect with a nut.

[0016] Another objective of this utility model embodiment is to provide a nut riveting system, the nut riveting system comprising a moving device, a control device, and the nut riveting device, the moving device being used to move the nut riveting device to the mounting position of the nut, and the control device being used to control the operation of the nut riveting device.

[0017] This utility model provides a nut riveting device. The device includes a drive component that rotates a motion assembly. The motion assembly is connected to a nut and moves the nut to achieve the moving function of the nut riveting device and fix the nut to the product. A gyroscope is attached to the housing of the drive component. The gyroscope detects the change in the tilt angle of the nut riveting device when the drive component moves the motion assembly and outputs an electrical signal to ensure the accuracy of the angle at which the nut riveting device is connected to and moves the nut. This guarantees the precision of assembly and installation, avoiding any impact on the overall riveting accuracy. Attached Figure Description

[0018] Figure 1 is an internal structural diagram of a nut riveting device provided in an embodiment of the present invention;

[0019] Figure 2 is a three-dimensional structural schematic diagram of a nut riveting device provided in an embodiment of the present utility model;

[0020] Figure 3 is a schematic diagram of the structure of a gyroscope in a nut riveting device provided in an embodiment of this utility model;

[0021] Figure 4 is a schematic diagram of the working principle of the gyroscope in a nut riveting device provided in an embodiment of this utility model.

[0022] Figure 5 is a schematic diagram of the working principle of a nut riveting system provided in an embodiment of this utility model.

[0023] In the attached diagram: 1. Drive component; 2. Gyroscope; 21. Vibrating component; 22. Detection element; 23. Drive electrode; 3. Motion component; 31. Transmission component; 32. Connector; 4. Housing; 41. Handle; 42. Positioning ring. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0025] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.

[0026] Figure 1 shows a structural diagram of a nut riveting device provided in an embodiment of the present utility model, including: a driving component 1, the output end of the driving component 1 being connected to a motion component 3 for transmission, the driving component 1 being used to drive the motion component 3 to rotate, and the motion component 3 being used to connect to a nut at the mounting position so as to drive the nut to move so that the nut is installed on the product;

[0027] Gyroscope 2 is connected to drive component 1 and is used to detect changes in the tilt angle of drive component 1 and output electrical signals.

[0028] In this embodiment of the invention, preferably, the nut riveting device mainly fixes the nut to the material by riveting. The output end of the drive component 1 is connected to the motion component 3, which is connected to the nut. The drive component 1 drives the motion component 3 to rotate, causing the nut riveting device to connect with the nut in the mounting hole. The motion component 3 then rivets the nut to fix it to the product. Simultaneously, a gyroscope 2 is connected to the drive component 1. The gyroscope 2 detects the tilt angle change of the nut riveting device and outputs an electrical signal, ensuring the tilt angle of the nut riveting device aligns with the nut. Detecting the tilt angle change of the nut riveting device and outputting an electrical signal can be done by outputting an analog signal and then converting it to a digital signal to output the detected tilt angle change of the drive component 1, ensuring the nut can be correctly installed on the material, thereby guaranteeing assembly accuracy. The gyroscope 2 can be optional. The gyroscope 2 chip uses the electrical signal converted from the tilt angle change of the detected drive component 1 to feed back to the control system. The control system compares these data with preset values ​​to determine whether the tilt angle position of the nut riveting device is consistent with the nut riveting position. Using the gyroscope 2 chip can reduce the size of the entire nut riveting device. Furthermore, the gyroscope 2 chip has a short start-up time during use and does not require a preheating start-up time. It is directly connected to the drive component 1 and can clearly detect the tilt angle position and its changes of the entire nut riveting device. When the drive component 1 drives the motion component 3 connected to the nut to rotate, the gyroscope 2 chip can synchronously detect the tilt angle change of the entire nut riveting device and output an electrical signal, so that the screw-in angle of the nut corresponds to the installation position, avoiding the impact of incorrect nut rotation angle or deviation on the riveting accuracy of the entire nut riveting device.

[0029] In one embodiment of this utility model, the utility model is provided with a driving component 1 driving the motion component 3 to rotate. The motion component 3 is connected to the nut and drives the nut to move, so as to realize the moving function of the nut riveting device and fix the nut to the product. A gyroscope 2 is attached to the outer shell 4 of the driving component 1. The gyroscope 2 is used to detect the change of the tilt angle of the nut riveting device when the driving component 1 drives the motion component 3 and outputs an electrical signal to ensure that the angle of the nut riveting device connected to and driving the nut to move is accurate, thereby ensuring the accuracy of assembly and installation and avoiding affecting the overall riveting accuracy.

[0030] As shown in Figures 1-3, in a preferred embodiment of the present invention, the gyroscope 2 includes a vibrating element 21 and a detection element 22. The vibrating element 21 vibrates at a fixed frequency by electrostatic drive, and the vibrating element 21 is electrically connected to the detection element 22.

[0031] In this embodiment of the present invention, preferably, the gyroscope 2 is a gyroscope 2 chip. The gyroscope 2 chip includes a vibrating element 21 and a detection element 22. The vibrating element 21 can be a vibrating mass block, which is connected to the detection element 22 through an elastic beam or spring. The vibrating element 21 is driven by electrostatics to always form a stable resonant state, allowing it to generate a small displacement in a specific direction to avoid interference in other directions. The vibrating element 21 will perform linear resonant motion at a fixed frequency in the plane. Under the action of alternating voltage, the frequency of the vibrating element 21 can be at the kilohertz level. As an inertial element, the vibrating element 21 can drive adjacent vibrating elements 21 to generate high-speed vibration by setting two driving electrodes 23 in the gyroscope 2, similar to the vibration mode of a "tuning fork". When the tilt angle of the nut riveting device changes, causing the gyroscope 2 to be affected by the in-plane angular velocity on the drive component 1, this high-speed vibration will generate a Coriolis force in the vertical direction, resulting in structural deformation. This causes the vibrating component 21 to move closer to or further away from the sensing electrode, causing a change in the electrode charge, thereby realizing the detection of the tilt angle of the nut riveting device. By responding to the angular velocity of the rotation of the drive component 1 through the Coriolis effect, when the drive component 1 rotates and drives the moving component connected to the nut to move, the detection element 22 detects the change in vibration displacement of the vibrating component 21 and the change in capacitance value between the fixed motor and outputs an electrical signal to obtain the numerical output of the tilt angle of the nut riveting device.

[0032] As shown in Figures 1-4, in a preferred embodiment of the present invention, the detection element 22 is attached to the drive component 1, and the detection element 22 detects the displacement change of the vibrating component 21 and outputs an electrical signal.

[0033] In this embodiment of the present invention, preferably, the detection element 22 attached to the back of the housing 4 of the drive component 1 can be a plate-shaped structure, similar to the structure of a chip. The detection element 22 is directly attached to the back of the housing 4 of the drive component 1, which can directly detect the rotation angle of the drive component 1 and provide stable feedback, indirectly reflecting the rotation state of the nut, and avoiding the vibration generated in the transmission system from affecting the detection results.

[0034] As shown in Figures 1-4, in a preferred embodiment of the present invention, the gyroscope 2 further includes a driving electrode 23 and a control module. The driving electrode 23 is used to drive the vibrating element 21 to vibrate. The driving electrode 23 is electrically connected to the control module. The control module is electrically connected to the detection element 22. The control module is provided with an integrated circuit unit and a communication unit.

[0035] In this embodiment of the present invention, preferably, the gyroscope 2 further includes a control module electrically connected to the detection element 22. The detection element 22 detects the displacement change of the vibrating element 21 when the driving element 1 rotates, and the resulting Coriolis force. By utilizing the principle of capacitance change, when the vibrating element 21 undergoes a displacement change, the detection element 22 detects the change and converts it into an electrical signal. This can be capacitance change detection. In the control module electrically connected to the detection element 22, an integrated circuit unit controls the operation of the gyroscope 2 chip, including its start, stop, and calibration functions. The conversion unit can perform analog-to-digital signal conversion, converting analog signals into digital signals to output the value of the electrical signal that detects capacitance change. The capacitance-to-voltage conversion circuit can also be equipped with a charge amplifier to convert small capacitance changes into voltage signals and increase their gain. The control module can also include a temperature compensation module to monitor the temperature of the gyroscope 2 chip and avoid the temperature affecting the detection accuracy of the detection element 22. The entire gyroscope 2 chip, through the cooperation of the vibrating element 21, the detection element 22, and the control module, can realize the detection of the angular velocity of the driving element 1, i.e., the tilt angle of the entire nut riveting device.

[0036] As shown in Figures 1-2, in a preferred embodiment of the present invention, the nut riveting device further includes a housing 4, which is composed of two half-shell structures joined together. The driving component 1 is located in the internal cavity of the housing 4, and the moving component 3 is located in the internal cavity of the housing 4 and extends out of the housing 4 at its end to drive the nut to rotate.

[0037] In a preferred embodiment of this utility model, the nut riveting device further includes a housing 4 for mounting the drive component 1 and the motion component 3. The housing 4 is mainly composed of two symmetrical half-shells joined together. The drive component 1 is connected to the motion component 3 and is located in the internal cavity of the housing 4. The end of the motion component 3 connected to the nut can extend out of the housing 4 so that the motion component 3 can drive the nut to rotate.

[0038] As shown in Figures 1-2, in a preferred embodiment of the present invention, the outer wall of the outer shell 4 is provided with a handle 41 and a positioning ring 42. The two ends of the handle 41 are respectively inserted into the opposite two sides of the outer shell 4, and the positioning ring 42 is sleeved on the outer shell 4.

[0039] In this embodiment of the present invention, preferably, a handle 41 and a positioning ring 42 are also provided on the outer wall surface of the outer shell 4. The arched handle 41 can be inserted into two opposite sides of the outer shell 4. The handle 41 facilitates carrying or installing the nut rivet device. The positioning ring 42 is sleeved on the outer shell 4. The annular positioning ring 42 can have a certain elasticity. The positioning ring 42 sleeved on the outer shell 4 can play a certain role in stabilizing and preventing the outer shell 4 from being not securely installed due to rotation during the transmission process of the drive component 1 and the motion component 3 installed inside the outer shell 4.

[0040] As shown in Figures 1-4, in a preferred embodiment of the present invention, the nut riveting device further includes a power module and a switch. The power module and the switch are located in the internal cavity of the housing 4. The power module is electrically connected to the drive component 1, and the switch is electrically connected to the power module.

[0041] In a preferred embodiment of this utility model, the nut riveting device further includes a power module and a switch. The power module can be a battery and the battery is electrically connected to the switch. The battery of the power module provides power to the nut riveting device, and the switch controls the opening and closing of the nut riveting device.

[0042] As shown in Figures 1-4, in a preferred embodiment of the present invention, the motion component 3 includes a transmission component 31 and a connecting member 32. The transmission component 31 is connected to the output end of the drive component 1. The transmission component 31 is used to drive the connecting member 32 to rotate and / or move, and the connecting member 32 is used to connect with a nut.

[0043] In this embodiment of the present invention, preferably, the motion component 3 connected to the driving component 1 includes a transmission component 31 and a connecting component 32. The transmission component 31, which is connected to the driving component 1, may also include two transmission components. The first transmission component is connected to the driving component 1 to drive the second transmission component and the connecting component 32 to rotate so that the nut is screwed into the material. The second transmission component may drive the connecting component 32 to move so that the nut screwed into the material is riveted, thereby completing the rotation and movement functions of the nut riveting device. The rod-shaped connecting component 32 is connected to the nut by rotation and then the nut is pulled to install the nut on the material.

[0044] Figure 5 shows a schematic diagram of the working principle of a nut riveting system provided in an embodiment of the present invention. The nut riveting system includes a moving device, a control device, and a nut riveting device. The moving device is used to move the nut riveting device to the mounting position of the nut, and the control device is used to control the operation of the nut riveting device.

[0045] In this embodiment of the utility model, preferably, the nut riveting system mainly includes a control device and a nut riveting device. The operator can hold the nut riveting device by hand, and use the driving component 1 of the nut riveting device to drive the motion component 3 connected to the nut to rotate. The gyroscope 2 chip attached to the driving component 1 detects the tilt angle change of the nut riveting device and outputs a signal to the control device of the nut riveting system. The control device then controls the operation of the nut riveting device based on the detected tilt angle change information. If the tilt angle is accurate, the nut riveting device will operate. If the tilt angle is different from the set value, the nut riveting device will not operate until the tilt angle of the nut riveting device is adjusted to be accurate. The nut riveting device screws the nut into the preset material installation position to avoid the tilt angle deviation when the nut riveting device is connected to the nut from affecting the nut riveting effect.

[0046] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A nut riveting device, characterized in that, The nut riveting device includes: a driving component, the output end of which is connected to a motion component for transmission, the driving component being used to drive the motion component to rotate, the motion component being used to connect to the nut at the mounting position so as to drive the nut to move so that the nut is installed on the product; and a gyroscope, which is connected to the driving component and is used to detect changes in the tilt angle of the nut riveting device and output an electrical signal.

2. The nut riveting device according to claim 1, characterized in that, The gyroscope includes a vibrating element and a detection element. The vibrating element vibrates at a fixed frequency by electrostatic drive, and the vibrating element is electrically connected to the detection element.

3. The nut riveting device according to claim 2, characterized in that, The detection element is attached to the drive component, and the detection element detects the displacement change of the vibrating component and outputs an electrical signal.

4. The nut riveting device according to claim 1, characterized in that, The gyroscope also includes a drive electrode and a control module. The drive electrode is used to drive the vibrating element to vibrate. The drive electrode is electrically connected to the control module. The control module is electrically connected to the detection element. The control module is equipped with an integrated circuit unit and a communication unit.

5. The nut riveting device according to claim 1, characterized in that, The nut riveting device also includes a housing, which is composed of two half-shell structures joined together. The driving component is located in the internal cavity of the housing, and the moving component is located in the internal cavity of the housing and extends out of the housing at its end to drive the nut to rotate.

6. The nut riveting device according to claim 5, characterized in that, The nut riveting device also includes a power module and a switch. The power module and the switch are located in the internal cavity of the housing. The power module is electrically connected to the drive component, and the switch is electrically connected to the power module.

7. The nut riveting device according to claim 5, characterized in that, The outer wall of the housing is provided with a handle and a positioning ring. The two ends of the handle are respectively inserted into the opposite two sides of the housing, and the positioning ring is sleeved on the housing.

8. The nut riveting device according to claim 1, characterized in that, The motion component includes a transmission component and a connecting member. The transmission component is connected to the output end of the drive component. The transmission component is used to drive the connecting member to rotate and / or move. The connecting member is used to connect with a nut.

9. A nut riveting system, characterized in that, The nut riveting system includes a moving device, a control device, and a nut riveting device as described in any one of claims 1-8. The moving device is used to move the nut riveting device to the mounting position of the nut, and the control device is used to control the operation of the nut riveting device.

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