Wire harness binding belt detection device and method

Abstract

The invention discloses a wire harness binding belt detection device which comprises a detection box, a detection circuit is arranged in the detection box, the upper end face of the detection box is a box cover, a plurality of detection columns are arranged on the box cover, each detection column is provided with a number, detection ports of the detection circuit are located in the detection columns, and the numbers of the detection ports correspond to the numbers of the detection columns. The top of each detection column is provided with an open hole, the cable tie is inserted into the detection port through the open hole, the box cover is further provided with a display screen, and the display screen is communicated with the detection circuit. Therefore, a worker can conveniently know the position of which detection column is not normally detected, so that the quality of the wire harness is ensured.

Description

Technical Field

[0001] The present invention relates to the field of wire harness detection, and in particular to a wire harness tie detection device and method. Background Art

[0002] The wiring harness is a group of metal wires and cables tied together to carry signals and power between devices. It is a wiring component that connects various electrical devices in the automotive circuit and consists of an insulating sheath, wiring terminals, wires, and insulating wrapping materials.

[0003] The wire harness needs to be tied with cable ties. After the wire harness is made, the cable ties need to be inspected to see if they are tied at the corresponding positions of the wire harness. Some longer wire harnesses have more cable ties, such as more than 20 cable ties on a wire harness. If a cable tie is missed during the inspection of the wire harness, it is troublesome to find the missed position, and it is often necessary to conduct another inspection, which reduces the inspection efficiency. In response to the above problems, a solution is proposed below. Summary of the invention

[0004] The object of the present invention is to provide a wire harness tie detection device and method, which have the advantage of being able to clearly indicate the position of a tie that has been missed, thereby improving the detection efficiency.

[0005] The above technical objectives of the present invention are achieved through the following technical solutions: A wire harness tie detection device comprises a detection box, wherein a detection circuit is arranged in the detection box, the upper end surface of the detection box is a box cover, a plurality of detection columns are arranged on the box cover, each of the detection columns is provided with a number, a detection port of the detection circuit is located in the detection column, and the number of the detection port corresponds to the number of the detection column, an opening is arranged on the top of the detection column, a tie is inserted into the detection port through the opening, and a display screen is also arranged on the box cover, and the display screen is connected to the detection circuit.

[0006] Preferably, the detection column is a hollow structure, and a contact piece is provided on the top of the inner cavity of the detection column, the contact piece is a metal piece, one end of the contact piece is fixed to the upper end surface of the inner cavity of the detection column, and the other side of the contact piece is suspended in the air, and the metal piece is pressed down by a cable tie to contact the detection port.

[0007] A detection circuit for a wire harness tie detection device, the detection circuit is controlled by an STM32 single-chip microcomputer, the detection circuit comprises a main circuit, a power supply circuit, a clock circuit, a reset circuit and a debugging circuit, the detection interface on the main circuit is connected to a plurality of detection columns in sequence, the power supply circuit, the clock circuit, the reset circuit and the debugging circuit are all connected to the main circuit, and the display screen is connected to the main circuit.

[0008] Preferably, the clock circuit includes a first clock circuit and a second clock circuit, the input and output ends of the first clock circuit are respectively connected to the OSC_IN pin and OSC_OUT pin of the STM32, the input and output ends of the second clock circuit are respectively connected to the OSC32_IN pin and OSC32_OUT pin of the STM32, the first clock circuit receives signals sent by the detection interface in sequence and adds 1 to the numbers on the display screen, and the second clock circuit makes the display screen repeat the current number.

[0009] A wire harness tie detection method comprises the following steps: S1: Place the product on the box cover and press the cable ties on the harness to the top of the detection column in order until all the cable ties have been detected; S2: During the cable tie detection process, observe the number displayed on the display screen. If the number is consistent with the detection column number corresponding to the current cable tie, continue to detect the next cable tie; if the number stays on the previously displayed number, start from the cable tie with the next number displayed and re-detect.

[0010] The beneficial effect of the present invention is that if one of the cable ties is missed during detection, the display screen will always stay on the previous number corresponding to the missed cable tie, so that employees can know at a glance which cable tie position is missed, without having to start detection from the beginning, reducing the time for employees to repeat actions and improving product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a structural schematic diagram of an embodiment; Figure 2 A circuit diagram of the main circuit of the embodiment; Figure 3 It is a connection circuit diagram of the main circuit detection port of the embodiment; Figure 4 is a circuit diagram of a power supply circuit of an embodiment; Figure 5 is a circuit diagram of two clock circuits of the embodiment; Figure 6 is a circuit diagram of a reset circuit of an embodiment; Figure 7 FIG. 4 is a circuit diagram of a debugging circuit of an embodiment.

[0012] Figure numerals: 1. detection box; 2. box cover; 3. detection column; 4. display screen; 5. detection position. DETAILED DESCRIPTION

[0013] The following is only a preferred embodiment of the present invention, and the protection scope is not limited to this embodiment. All technical solutions under the concept of the present invention should belong to the protection scope of the present invention. The same parts are represented by the same reference numerals.

[0014] like Figures 1 to 7 As shown, a wire harness tie detection device includes a detection box 1, the upper end surface of the detection box 1 is a box cover 2, one side of the box cover 2 is hinged to the detection box 1, and can be opened around the hinge. A plurality of detection columns 3 are arranged on the box cover 2, and a detection position 5 for the connector on the wire harness to be plugged and fixed is arranged on the box cover 2. Each detection box 1 can only be adapted to detect one type of wire harness, and the same type of wire harness will be fixed into a similar shape because of the same installation environment. Therefore, when the detection position 5 fixes the connector, the position of the tie on this wire harness is also fixed, and a plurality of detection columns 3 are arranged at the position where the tie should be tied on the wire harness.

[0015] Each detection column 3 is provided with a number, which corresponds to the number of the cable tie arrangement on the harness. The number can be directly attached to the detection column 3 by a sticker, or attached to a box near the detection column 3. An opening is provided at the top of the detection column 3, and the protruding part of the cable tie can be inserted into the opening.

[0016] The detection column 3 is a hollow structure, and a contact piece is provided at the top of the inner cavity of the detection column 3. The contact piece is a metal piece that can conduct the circuit. One end of the contact piece is fixed to the upper end surface of the inner cavity of the detection column 3, and the other side of the contact piece is suspended. When the cable tie is inserted into the opening, the suspended end of the contact piece is pressed downward, so that one end of the contact piece is connected to the detection circuit located in the box.

[0017] A display screen 4 is also provided on the box cover 2. The display screen 4 is connected to the detection circuit and is used to display numbers.

[0018] The detection circuit in the detection box 1 uses an STM32F103C8T6 single-chip microcomputer as a controller, with the location of the single-chip microcomputer as the main circuit, and also includes a power circuit, a clock circuit, a reset circuit and a debugging circuit. The power circuit provides power for all components connected to the detection circuit. The debugging circuit can be used to test the sensitivity of the detection circuit and detect whether the error-proofing function of each module meets the requirements. After completing the detection of a wiring harness, the reset circuit resets the number on the display screen 4 and also resets the count in the main circuit to zero.

[0019] The clock circuit is the main solution for implementing the scheme of the present application. The clock circuit in the present application includes a first clock circuit and a second clock circuit. The input end and the output end of the first clock circuit are respectively connected to the OSC_IN pin and the OSC_OUT pin of the STM32; the input end and the output end of the second clock circuit are respectively connected to the OSC32_IN pin and the OSC32_OUT pin of the STM32. Each detection column 3 is provided with a circuit connected to a connection interface on the main circuit. When the contact piece is pressed, the connection interface corresponding to the circuit is connected, and the single-chip microcomputer generates a crystal oscillator signal.

[0020] When a crystal oscillator signal is generated, the first clock circuit receives the signal sent by the detection interface in sequence, and displays the number of the location where the crystal oscillator signal is generated on the display screen 4. When the crystal oscillator signal is generated in sequence, the numbers will be displayed in sequence on the display screen 4; if there is a crystal oscillator signal that is not generated in the middle, at this time, the first clock circuit no longer receives the subsequent crystal oscillator signal, and the number of the last normally generated crystal oscillator signal is displayed on the display screen 4, and the second clock circuit makes the display screen 4 repeat the current number.

[0021] A wire harness tie detection method comprises the following steps: S1: Place the product on the box cover and press the cable ties on the harness to the top of the detection column in order until all the cable ties have been detected; S2: During the cable tie detection process, observe the number displayed on the display screen. If the number is consistent with the detection column number corresponding to the current cable tie, continue to detect the next cable tie; if the number stays on the previously displayed number, start from the cable tie with the next number displayed and re-detect.

[0022] The specific embodiments described above further illustrate the technical problems, technical solutions and beneficial effects solved by the present invention. It should be understood that the above are only specific embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A wire harness tie detection device, comprising a detection box (1), wherein a detection circuit is provided in the detection box (1), characterized in that: The upper end surface of the detection box (1) is a box cover (2), and a plurality of detection columns (3) are arranged on the box cover (2), each of the detection columns (3) is provided with a number, the detection port of the detection circuit is located in the detection column (3), and the number of the detection port corresponds to the number of the detection column (3), the top of the detection column (3) is provided with an opening, and the cable tie is inserted into the detection port through the opening, and the box cover (2) is also provided with a display screen (4), and the display screen (4) is connected to the detection circuit.

2. A wire harness tie detection device according to claim 1, characterized in that: The detection column (3) is a hollow structure. A contact sheet is provided at the top of the inner cavity of the detection column (3). The contact sheet is a metal sheet. One end of the contact sheet is fixed to the upper end surface of the inner cavity of the detection column (3), and the other side of the contact sheet is suspended. The metal sheet is pressed down by a cable tie to contact the detection port.

3. A detection circuit for a wire harness tie detection device according to claim 2, characterized in that: The detection circuit is controlled by an STM32 single-chip microcomputer, and comprises a main circuit, a power circuit, a clock circuit, a reset circuit and a debugging circuit. The detection interface on the main circuit is sequentially connected to a plurality of detection columns (3), the power circuit, the clock circuit, the reset circuit and the debugging circuit are all connected to the main circuit, and the display screen (4) is connected to the main circuit.

4. A detection circuit for a wire harness tie detection device according to claim 3, characterized in that: The clock circuit comprises a first clock circuit and a second clock circuit, wherein the input end and the output end of the first clock circuit are respectively connected to the OSC_IN pin and the OSC_OUT pin of the STM32, and the input end and the output end of the second clock circuit are respectively connected to the OSC32_IN pin and the OSC32_OUT pin of the STM32, wherein the first clock circuit receives signals sent by the detection interface in sequence and increases the number on the display screen (4) by 1, and the second clock circuit causes the display screen (4) to repeat the current number.

5. A wire harness tie detection method according to claim 1, characterized in that: The following steps are involved: S1: Place the product on the box cover and press the cable ties on the harness to the top of the detection column in order until all the cable ties have been detected; S2: During the cable tie detection process, observe the number displayed on the display screen. If the number is consistent with the detection column number corresponding to the current cable tie, continue to detect the next cable tie; if the number stays on the previously displayed number, start from the cable tie with the next number displayed and re-detect.

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