Heidenhain grating ruler LS487C ML220MM in stock

Heidenhain grating ruler LS487C ML220MM in stockThe position should be as close as possible to the drive axis and as far away as possible from the heat source of the machine tool (such as the screw pair), which depends on the machine tool designer's ability to balance and consider various factors, including the selection, design, installation, and testing of the grating ruler, in order to obtain a reasonable cost-effectiveness and achieve good control and detection results. Through the above steps of debugging, a CNC machine tool can generally achieve good position accuracy (positioning accuracy, repeat positioning accuracy), meet the design requirements of the machine tool, and easily meet the needs of users. After the installation of the grating line displacement sensor is completed, the digital display meter can be connected, the workbench can be moved, and the counting of the digital display meter can be observed to see if it is normal. Select a reference position on the machine tool and move the working point back and forth to the selected position. The reading of the digital display should be the same (or return to zero). In addition, a dial gauge (or dial indicator) can also be used to adjust the dial gauge and digital display to zero simultaneously (or memorize the starting data), and after multiple repetitions, return to the initial position to observe whether the data from the digital display and dial gauge are consistent. Through the above work, the installation of the grating ruler displacement sensor is completed. But for general machine tool processing environments, there are more iron filings, cutting fluids, and oil stains. Therefore, sensors should be equipped with protective covers. The design of the protective cover is determined by enlarging the cross-sectional area of the sensor to leave a certain space size. The protective cover is usually sealed with rubber to provide it with certain waterproof and oil resistant capabilities.
Precautions for use
(1) When plugging and unplugging the grating ruler sensor and digital display meter plug socket, the power should be turned off before proceeding.
(2) As much as possible, add a protective cover and promptly clean up the chips and oil splashed on the ruler to strictly prevent any foreign objects from entering the sensor housing of the grating ruler.
(3) Regularly check whether the connecting screws of each installation are loose.
(4) To extend the lifespan of the dust-proof sealing strip, a thin layer of silicone oil can be evenly applied to the sealing strip, taking care not to splash onto the engraved surface of the glass grating.
(5) To ensure the reliability of the grating scale sensor, the grating scale surface and indicator grating surface can be cleaned and wiped with a mixture of ethanol (50% each) at regular intervals to keep the glass grating scale surface clean.
(6) The grating ruler sensor must not be subjected to severe vibrations or falls to avoid damaging the grating ruler. If the grating ruler breaks, the grating ruler sensor will become ineffective.
(7) Do not disassemble the grating ruler sensor by yourself, and do not arbitrarily change the relative distance between the main grating ruler and the auxiliary grating ruler, otherwise it may damage the accuracy of the grating ruler sensor on the one hand; On the other hand, it may also cause relative friction between the main grating ruler and the auxiliary grating ruler, damaging the chromium layer and the grating line, resulting in the scrapping of the grating ruler.
(8) Attention should be paid to preventing oil and water pollution of the grating surface to avoid damaging the distribution of grating line stripes and causing measurement errors.
(9) Grating ruler sensors should avoid working in environments with severe corrosion to prevent corrosion of the grating chromium layer and grating ruler surface, which can damage the quality of the grating ruler.
Heidenhain's enclosed linear grating ruler can effectively prevent dust, chips, and splashes of cutting fluid, making it an ideal choice for machine tools.

Accuracy level ± 2 μ m
Measure step distance to 0001 μ m
Measure the length up to 30 meters
Easy and fast installation
Large installation tolerance
Capable of withstanding high acceleration loads
Strong anti pollution ability
Enclosed linear grating ruler has
Standard grating ruler housing
- Used for applications with strong vibrations
- Large measurement length of 30 meters
Compact grating ruler housing
- Used for applications with limited installation space
- Large measurement length 1240 mm, if using mounting plates or fasteners, large measurement length 2040 mm
Heidenhain grating ruler LS487C ML220MM in stock
The aluminum casing of the Heidenhain enclosed linear grating ruler effectively protects the grating ruler, reading head, and guide rail from dust, chips, and cutting fluid. The elastic sealing strip that automatically presses downwards keeps the shell sealed.
The reading head moves along the small friction rail of the grating ruler. The reading head is connected to the external mounting bracket through a coupling, which can compensate for the inevitable alignment error between the grating ruler and the machine tool guide rail.
Grating rulers are often used in closed-loop servo systems of CNC machine tools, and can be used for detecting linear or angular displacement. The measured output signal is a digital pulse, which has the characteristics of large detection range, high detection accuracy, and fast response speed. For example, in CNC machine tools, it is commonly used to detect the coordinates of cutting tools and workpieces to observe and track cutting errors, in order to compensate for tool motion errors. Taking a transmission grating as an example, when a small angle θ is formed between the lines on the indicator grating and the lines on the scale grating, and the two grating scale facets are placed relatively parallel to each other, under the illumination of the light source, they are located on almost vertical grating lines, forming alternating light and dark stripes. This type of stripe is called a "Moir é stripe".