CN-122007320-A - Riveting tool integrating stroke detection module and stroke detection method thereof

Abstract

The application relates to a riveting tool integrating a stroke detection module and a stroke detection method thereof, and relates to the technical field of electric tools, wherein the riveting tool comprises a riveting tool body, a controller module and a control module, wherein the riveting tool body is used for completing the riveting action of rivets; the riveting tool comprises a riveting tool body, a stroke detection module, a controller module, a control module, a motion execution module, a multi-mode cooperative scheduling and correction calculation module and a multi-mode cooperative scheduling and correction calculation module, wherein the stroke detection module is arranged on the inner wall of the riveting tool body and is electrically connected with the controller module and is used for detecting and transmitting magnetic field change signals of a synchronous magnetic stripe arranged on the motor cylinder, the controller module is arranged at the bottom of a holding position of the riveting tool body and is used for receiving and converting the magnetic field change signals into motor cylinder displacement and correcting the pressing quantity and/or the air supply quantity by combining a preset critical displacement threshold value, the control module is used for controlling the on-off of the motion execution module, the motor cylinder is monitored in real time based on magnetic field sensing and displacement conversion algorithm, and the accurate control of an air circuit and a switch is realized through the multi-mode cooperative scheduling and correction calculation, and the automation precision and the cooperative efficiency of the riveting process are remarkably improved.

Inventors

• GAO MIN

Assignees

• 瑞萨铆接紧固系统(苏州)有限公司

Dates

Publication Date

20260512

Application Date

20260323

Claims (5)

1. 1. A staking tool incorporating a stroke detection module, comprising: The riveting tool body is used for completing the riveting action of rivets and comprises a motor cylinder, an action execution module, a controller module and a stroke detection module; The stroke detection module is arranged on the inner wall of the riveting tool body, is electrically connected with the controller module, comprises a synchronous magnetic stripe and a displacement sensor, and is used for detecting and transmitting a magnetic field change signal of the synchronous magnetic stripe arranged at one end of the motor cylinder through the displacement sensor; The controller module is arranged at the bottom of the holding position of the riveting tool body and is used for receiving and converting the magnetic field change signal, generating a motor cylinder displacement, generating a stroke stop signal by combining a preset critical displacement threshold value and controlling the on-off of the action execution module; The action execution module comprises a gas supply unit and/or a switch unit.
2. 2. The integrated stroke detection module riveting tool as recited in claim 1 wherein the riveting tool body further comprises: The driving module is connected with the signal output end and the power module, and comprises a transmission shaft and a pneumatic motor, wherein the transmission module is used for changing the running state of the pneumatic motor according to a travel stop signal; One end of the motor cylinder, which is far away from the transmission module, is connected with a synchronous magnetic stripe; and the switch unit is used for changing the on-off state of the air supply unit.
3. 3. A stroke detection method for a riveting tool, applied to the riveting tool of the integrated stroke detection module of any one of claims 1 to 2, characterized by comprising: initializing a stroke detection module, and establishing a movement limit reference of the power module according to the working state of the riveting tool; the stroke detection module detects a magnetic field generated by a synchronous magnetic stripe which moves synchronously with the power module, and collects and transmits a magnetic field change signal to the controller module; The controller module converts the magnetic field change signals into motor cylinder displacement after cleaning, and calculates displacement change vectors at adjacent moments; The controller module combines the displacement change vector according to a preset critical displacement threshold value to generate a stroke stop signal; And the controller module distributes the travel stop signal to the action execution module to complete the riveting action of the rivet.
4. 4. The stroke detection method for a riveting tool as claimed in claim 3 wherein the operational flow of the controller module comprises: Distributing and regulating a travel stop signal according to a preset part cooperative mode, and constructing a signal column to be implemented; sequencing the signal columns to be implemented according to the movement limiting reference and the time stamp, and determining a signal transmission time sequence; according to the signal transmission time sequence and the component type, transmitting the stroke stop signal to a ventilation rate detection module and a pressure detection module in stages, and calculating the pressing amount and the air supply amount; calculating a corresponding correction amount according to the pressing amount and/or the air supply amount in combination with a preset global travel threshold, and calculating component operation delay according to the component operation speed; and controlling the on-off of the air supply unit and the switch unit according to the operation delay of the component until reaching a critical termination position.
5. 5. The method of claim 4, wherein the allocating and controlling the stroke stop signal according to the preset part cooperative mode, constructing the signal sequence to be implemented, comprises: analyzing a preset part cooperation mode, and extracting the part cooperation number and the part communication protocol; analyzing the riveting tool according to the type of the part, identifying a ventilation detection module and a pressure detection module, and determining the signal acting speed of the module; performing stepwise division on the travel stop signal according to the cooperative number of the components to form a stage signal column; according to the component communication protocol, according to the phase signal sequence, signal distribution is carried out on the ventilation quantity detection module and the pressure detection module, and module feedback data are obtained; the module feedback data are arranged in time sequence according to the module signal acting speed, and a signal feedback time sequence is obtained; And correcting the stage signal sequence according to the signal feedback time sequence to construct a signal sequence to be implemented.

Description

Riveting tool integrating stroke detection module and stroke detection method thereof Technical Field The application relates to the technical field of electric tools, in particular to a riveting tool integrated with a stroke detection module and a stroke detection method thereof. Background Blind rivet guns, also known as riveting tools, are a type of tool ‌ for fastening rivets for use in the manufacturing industry of ‌ sheet metal, pipe, etc., which are widely used in the riveting of products in various industries. Currently, riveting tools are generally classified into four types according to the type of power source, namely, an electric riveting tool, a hydraulic riveting tool, a pneumatic riveting tool and a manual riveting tool, wherein the electric riveting tool is widely used because of rapid and efficient riveting. Since power riveting tools typically employ a stretching process to rivet a product, they require the use of special rivet joints, typically, blind rivets, which are the most commonly used at present. In general, an electric riveting tool generally comprises a housing, a grabbing unit and a power unit are arranged in the housing, a rivet rod of a blind rivet is grabbed by the grabbing unit in operation, and then the power unit drives the grabbing unit to move so as to stretch the rivet rod, so that riveting is completed. The riveting stroke generally depends on the change of motor sound through hearing and the change of handle vibration frequency through touch feeling, simultaneously combines the flexible displacement volume of experience observation rifle head piston rod, loosens the trigger immediately at the moment of hearing "click" fracture sound, if meet the riveting unusual then need to check whether the rivet reaches the preset breaking position with the help of spacing sleeve mechanical limit or the operation of repeatedly inching. The prior patent discloses a displacement measuring device and a method of a straight-travel intelligent valve positioner, wherein the device comprises a control module, a detection module and a motion module, a straight-travel magnetic strip is positioned above a straight-travel Cheng Famen displacement module, a straight-travel Cheng Citiao is parallel to a screw rod, the detection module comprises a magnetizer and a magnetic detection device, and the detection module is kept fixed in the working process. Through control module, the motion to straight Cheng Famen displacement module is controlled in the device working process, and in the straight Cheng Famen displacement module motion process, the magnetizer in the detection module will carry out magnetic signal's feedback to control module, and control module receives and to the host computer feedback magnetic detection signal, the host computer is used for confirming the displacement volume of straight journey intelligent valve positioner based on magnetic detection signal. Said invention provides important detection component for non-contact type straight-travel intelligent positioner valve position feedback accuracy, and its non-contact type installation is convenient and reliability is high. The prior art scheme has the following defects that 1, the traditional riveting tool only depends on the experience of an operator to judge the breaking position of the rivet, the severe requirement of the modern industry on the assembly consistency cannot be met, and particularly on an automatic production line, the forming quality and the connection reliability of a rivet joint are directly determined by the piston stroke length at the moment of breaking the rivet. Disclosure of Invention Aiming at the defects of the prior art, the application aims to provide a riveting tool integrating a stroke detection module and a stroke detection method thereof, and the displacement curve and the end position of the whole riveting process are accurately monitored through an integrated stroke sensing and stroke control algorithm, so that the technical defects of unstable riveting or thread damage caused by excessive stroke due to insufficient stroke are effectively avoided, and the digital control and quality tracing of the riveting process are realized. The method is realized by the following technical scheme: in a first aspect, the present application provides a riveting tool incorporating a stroke detection module, comprising: The riveting tool body is used for completing the riveting action of rivets and comprises a power module and an action execution module, wherein the power module comprises a motor cylinder; The stroke detection module is arranged on the inner wall of the riveting tool body and is electrically connected with the controller module, and the stroke detection module comprises a synchronous magnetic stripe and a displacement sensor and is used for detecting and transmitting a magnetic field change signal of the synchronous magnetic stripe arranged at one end of the power module through the displac