Kiepe switch German Kiepe model Kiepe price

The Kiepe switch is the direct source of information for the entire machine vision system, mainly composed of one or two image sensors, sometimes accompanied by light projectors and other auxiliary equipment. The main function of the vision sensor is to acquire the raw images that the machine vision system needs to process. Image sensors can use laser scanners, line-scan and area-scan CCD cameras or TV cameras, as well as the latest digital cameras.

Kiepe switch classification

1) Linear displacement switch: The function of the linear displacement switch is to convert linear mechanical displacement into electrical signals. To achieve this, a variable resistor track is usually fixed at the stationary part of the switch, and different resistance values are measured by the displacement of the wiper on the track. The switch track is connected to a stable DC voltage, allowing a small current in microamperes to flow. The voltage between the wiper and the start terminal is proportional to the length of the wiper's movement. Using the switch as a voltage divider minimizes the requirement for the accuracy of the total resistance of the track, because resistance changes caused by temperature variations do not affect the measurement result. 2) Angular displacement switch: Angular displacement switches are used for obstacle handling: using an angle switch to control your wheels can indirectly detect obstacles. The principle is very simple: if the motor with the angle switch is running but the gear does not turn, it means your machine is blocked by an obstacle. This technology is very simple and effective to use; the only requirement is that the moving wheel must not slip on the floor (or slip too frequently), otherwise you will not be able to detect obstacles. Connecting an idler gear to the motor can avoid this problem; this wheel is not driven by the motor but by the movement of the device: during the rotation of the drive wheel, if the idler wheel stops, it means you have hit an obstacle.

Kiepe switch precautions for use

1) If the electronic scale has been used for a long time, and the seal has aged, mixing in many impurities, and water mixtures and oil will seriously affect the contact resistance of the brush, causing the displayed numbers to jump continuously. At this point, it can be said that the electronic scale of the linear displacement switch is damaged and needs to be replaced. 2) If the power supply capacity is too small, many issues will arise, so the power supply needs to have sufficient capacity. Insufficient capacity will cause the following situations: the movement of the melting glue will cause fluctuations in the display of the mold clamping electronic scale, or the mold clamping movement will cause fluctuations in the display of the injection molding electronic scale, resulting in large measurement errors. If the solenoid valve drive power supply and the linear displacement switch power supply are together, the above situations are more likely to occur; in severe cases, voltage fluctuations can even be measured using the voltage range of a multimeter. If the situation is not caused by high-frequency interference, static interference, or poor neutral grounding, it may be due to insufficient power supply capacity. 3) Frequency modulation interference and static interference can both cause the display numbers of the linear displacement switch's electronic scale to jump. The signal lines of the electronic scale must be separated from the high-voltage lines of the equipment in separate cable trays. The electronic scale must mandatorily use a grounding bracket, and ensure good contact between the electronic scale housing and the ground. Signal lines must use shielded cables, and one end of the shielded cable should be grounded at the electrical box. If there is high-frequency interference, the voltage measurement with a multimeter usually shows normal, but the displayed numbers keep jumping; when static interference occurs, the situation is similar to high-frequency interference. To verify if it is static interference, you can short-circuit the cover screw of the electronic scale to some metal part of the machine using a power cord; once short-circuited, the static interference will be eliminated immediately. However, it is difficult to eliminate high-frequency interference using the above method. Variable frequency drives and robotic arms often generate high-frequency interference, so you can try stopping the high-frequency drive or robotic arm to verify if it is high-frequency interference. 4) If the display data of the linear displacement switch's electronic scale jumps regularly at a certain point during operation, or if there is no display data, check if the insulation of the connection wire is damaged and causing a regular short circuit to ground due to contact with the machine housing. 5) The supply voltage must be stable; industrial voltage needs to meet a stability of ±0.1[%]. For example, if the reference voltage is 10V, a fluctuation of ±0.01V is allowed; otherwise, it will cause continuous fluctuations in the display. However, if the amplitude of the display fluctuation does not exceed the amplitude of the voltage fluctuation, the electronic scale is normal. 6) The alignment of the linear displacement switch installation needs to be good, but parallelism allows an error of ±0.5mm, and angle allows an error of ±12°. However, if both parallelism and angle errors are too large, the displayed numbers will jump. In such cases, the parallelism and angle must be adjusted. 7) During the connection process, pay close attention; the three wires of the electronic scale must not be connected incorrectly, and the power line and output line must not be swapped. If the wires are connected incorrectly, it will result in large linear errors, making control difficult and reducing control precision, while the display is prone to jumping phenomena.

Kiepe switch applications

The geometric state parameters of train wheel flanges affect the speed and smoothness of train operation and are crucial for safe train operation. Traditional detection methods are relatively complex, usually involving manual measurements with specialized calipers, leading to significant measurement errors due to manual data reading, and failing to achieve digital management of detection data. With the development of China's railway industry, train speeds are increasing, making precise and rapid inspection and digital management of train wheel flange state parameters increasingly important. The flange detector adopts modern switch technology, microcontroller processing systems, and a concise and stable mechanical structure, enabling convenient and precise continuous rapid measurement of geometric state parameters, achieving digitization of parameters such as flange height and rim thickness. Many switches are used for detecting flange height, width, rim thickness, etc., with displacement switches being the most concerned. There are many types of displacement switches; the current new switch technology used for train wheel flange detection is called laser displacement switch. Currently, the laser triangulation method is used for train wheel flange detection, offering high precision for short-distance measurements. The displacement switch can be directly installed on the track for detection, or a laser reflective displacement switch can be used as the measuring device, scanning the flange shape along a straight line while recording the entire flange data. The entire flange contour curve can be derived through a microprocessor, thereby calculating flange width, flange height, 70mm wear amount, and wear area. The measured data can be uploaded to a computer to generate a database, utilizing advanced post-processing software for digital management of train wheel flanges. It can not only measure wheel pair wear on operating trains but also sort wheel pairs for dimensional compliance on production lines. The development of transportation relies on detection technology, with instruments and switch technology being the core of detection technology. In today's era of high-speed power development, people not only hope to experience comfort and enjoyment but also desire safety. The development of switch technology will bring more safety to people's lives and transportation, and the development of China's switch technology will also drive the development of world-class advanced technologies in transportation internationally.

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