Method and device for checking and evaluating the quality of a plug connection

Abstract

In a method for checking and evaluating the quality of a connector connection (100), wherein a first signal is acquired and evaluated, the first signal (S) is continuously A ) from a first detection device (12) and at least a second signal (S B , S G ) is detected by at least one second detection device (17, 114, 115) and recorded in at least one recording device (14), triggers at least one trigger signal (S T ) the opening of a measuring window (20) and the presence of at least two signals characteristic of a proper plugging-in process (S K , S BC , S GC ) within the measurement window (20) is checked by at least one evaluation unit (15), wherein the at least one trigger signal (S T ) is in time before the measurement window (20), within the measurement window (20) or in time after the measurement window (20).

Claims

[1] Method for checking and evaluating the quality of a plug connection of a connector (100), wherein a first signal is detected and evaluated, characterized by , that the first signal (S A ) from a first detection device (12) and at least a second signal (S B , S G ) are continuously detected by at least one second detection device (17, 114, 115) and recorded in at least one recording device (14), at least one trigger signal (S T ) triggers the opening of a measuring window (20) and the presence of at least two signals characteristic of a proper insertion process (S K , S BC , S GC ) within the measurement window (20) is checked by at least one evaluation unit (15), wherein the at least one trigger signal (S T ) is in time before the measurement window (20), within the measurement window (20) or in time after the measurement window (20). [2] Method according to claim 1, characterized by , that at least a third signal, in particular a third and a fourth signal, is detected and recorded in the at least one recording device (14) and evaluated by the at least one evaluation unit (15). [3] Method according to claim 1 or 2, characterized by that at least one of the signals to be detected or detected is an acoustic signal (S A ) is and / or that at least one of the signals to be detected or detected is a speed signal, acceleration signal (S B ), movement signal or position or attitude signal (S G ) is. [4] Method according to claim 3, characterized by , that a detection device (17) for detecting an acceleration signal detects it at a high sampling rate, in particular at a sampling rate in the range of 43 kHz to 46 kHz, in particular at a sampling rate of 44.1 kHz. [5] Method according to any of the foregoing claims, characterized by that this is at least a trigger signal (S T ) a position signal of the position of a hand (111, 112) of an operator (110) performing a plugging operation, in particular the position signal is determined by geofencing and / or at least an optical device, in particular a camera (114, 115), and / or at least a gyroscopic device and / or at least a radio-based tracking device. [6] Method according to any of the foregoing claims, characterized by that this is at least a trigger signal (S T ) a predefinable sequence of movements of a hand (111, 112) of an operator (110) performing a plugging operation. [7] Method according to any of the foregoing claims, characterized by that this is at least a trigger signal (S T) a movement direction signal to indicate the direction of movement of a hand (111, 112) of an operator (110) performing a plugging operation. [8] Method according to any of the foregoing claims, characterized by , that the hand movement of an operator (110) is tracked continuously or at predefinable time intervals. [9] Method according to claim 8, characterized by , that the tracking is carried out using at least one optical device, in particular a camera (114, 115), and / or at least one gyroscopic device and / or at least one radio-based tracking device. [10] Method according to any of the preceding claims, characterized by that this is at least a trigger signal (S T ) is an acknowledgment signal or acknowledgment gesture signal after completion of a plugging operation. [11] Method according to any of the foregoing claims, characterized by that this is at least a trigger signal (S T) a signal emanating from the connector parts (101, 102) to be joined before they meet or before they latch, in particular a characteristic acceleration signal (S BC ) and / or movement profile signal (S GC ) is. [12] Method according to any of the foregoing claims, characterized by , that to locate the source of the detected signals (S A , S B , S G ) via transit time differences the at least two detection devices (12, 17, 114, 115) for detecting the first signal (S A ) and at least one second signal (S B , S G ) are arranged at a predetermined fixed spatial distance from each other. [13] Method according to any of the preceding claims, characterized by, that when checking a connector (100) equipped with at least two locking stages, the acoustic and / or vibration signal triggered by the locking of the first locking stage (107) constitutes at least one trigger signal (S T ) to open the measuring window (20). [14] Method according to any one of claims 1 to 12, characterized by , that when inspecting a connector (100) provided with at least one plug-in barrier that can be overcome by force or at least one area with increased roughness, the acoustic and / or vibration signal and / or the force signal of the force to be applied to overcome the plug-in barrier is the at least one trigger signal (S ) triggered by overcoming the plug-in barrier or the area with increased roughness T ) to open the measuring window (20). [15] Method according to any of the preceding claims, characterized by, that at least one signal to close the measurement window (20) is output, which is time-based and / or event-based. [16] Method according to any of the foregoing claims, characterized by , that the measurement window (20) has a predetermined time length. [17] Method according to any of the preceding claims, characterized by , that the time length of the measurement window (20) is 10 to 50 ms, in particular 12 to 50 ms, in particular 15 ms. [18] Method according to any of the foregoing claims, characterized by that the method is used for checking plug connections in the manufacturing assembly of products in the automotive, aerospace, consumer electronics, medical technology, maintenance of plants, machines and vehicles and in medical services. [19] Device (1) for carrying out the method according to any one of the preceding claims, characterized by, that the device (1) includes at least a first detection device (12) for detecting a first signal (S A ), at least a second detection device (17, 114, 115) for detecting at least a second signal (S B , S G ), at least a recording device (14) for recording the detected signals (S A , S B , S G ), at least one trigger signal detection device (10) for detecting at least one trigger signal (S T ), at least a device (11) for opening a measurement window (20) when at least one trigger signal (S) is present T ) and at least one evaluation unit (15) for evaluating the presence of at least two signals characteristic of a proper mating process (S K , S B , S G ) within the measurement window (20).

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