Installation of lathe grating ruler

Installation of lathe grating rulerisRefers to the installation of grating rulers and digital displays on ordinary lathes (6140, 6136, 6132, 6125, etc.), vertical lathes, and other machine tools to provide positioning and display detection devices for machine tool processing. There are multiple brands of grating rulers for customers to choose from: Wanhao, Xinhe, Xintian, Qihai, Changguang, Suoxin, Shuoxin, Nantian, Ouxin, Bijia, Duoer, Linze, etc. The travel of the grating ruler ranges from 50mm to 3000mm, with accuracies of 0.005mm and 0.001mm. We also provide installation and maintenance services for milling machines, grinders, spark machines, wire cutting machines, punch grinders, and other digital, electronic, and digital rulers.

linear scaleApplication scope:

1. Displacement measurement of various measuring institutions and instruments: optical imaging measuring instrument Optical projectors and microscopes.
2. Digital display systems for various types of machine tools: lathes, milling machines, grinders, boring machines, drilling machines, wire cutting machines, spark machines Longmen milling machine, etc.
3. Can be connected to PC and PLC for displacement measurement of various automation mechanisms.

Bed grating rulerFeatures:

1. Advanced optical measurement system, the sliding part adopts a high-precision five bearing system design that has been verified to be reliable and durable, ensuring the stability of the optical mechanical system, excellent repeatability and high-level measurement accuracy.
2. The sensor adopts a sealed structure, super thick type, reliable performance, and easy installation, maintenance, and upkeep.
3. The signal line adopts a multi-layer isolation wire mesh with four covers and a metal shell to protect it from water and rust.
4. The light source adopts imported infrared light-emitting diodes, which are small in size and have a long lifespan.
5. The grating ruler body is made of aluminum profile, which has undergone extreme treatment, and the ruler head is made of zinc alloy die-casting for corrosion resistance.
6. It adopts special oil resistant, corrosion resistant, high elastic and anti-aging plastic for waterproofing, excellent dust prevention and long service life.
7. Has a high level of anti-interference ability, high stability, high speed, and shock resistance.
8. The sensor uses a glass precision measuring grating as the measuring reference, which can produce high-precision grating glass rulers of various specifications.
9. The power outage memory adopts E2PROM, which is battery free, maintenance free, and has a ten-year memory;
10. Vibration filtering function: For high-precision machine tools, the display resolution is 1um (0.001mm). For example, the vibration generated by grinding machines during processing often exceeds 1um, causing the display value to bounce back and forth, making the operator's eyes dizzy and confused. DELOS adopts a vibration filter function, which uses precise mathematical operations to filter out the jumping caused by machine tool processing after real-time position sampling on the optical ruler, and displays the average position value, making the operator more comfortable in processing while reducing human judgment errors during processing.
11. Nonlinear error correction function: Due to the fact that machine tools or instruments usually require precision machining or measurement, they are limited by the structure of the machine tool or instrument bed, the level of production technology of the bed, and the influence of environmental temperature, humidity, etc., and often cannot meet the requirements of machining or measurement. Therefore, it is necessary to use an optical ruler to improve the accuracy of the grinder to the highest possible limit. DELOS products have built-in non-linear error correction commonly used in CNC machinery, elevating users' machine tools or instruments to the highest possible limits.

linear scaleparameter
Measurement range: 50mm to 3000mm
Dimensions: 2003150mm
Resolution divided into: 5um (0.005mm)
Unidirectional repeatability accuracy: 2um (0.002mm)
Reverse repeatability accuracy 3um (0.003mm)
Grid spacing: 0.02mm Grid line: 50 pairs/mm
Reaction speed: 120m/min (0.005mm) 20m/min (0.001mm)
Working temperature: 0-45 ℃
Storage temperature: -20 ℃ -70 ℃
Output signal: TTL, EIA-422-A
Supply voltage: 5V ± 5%, 24V
Cable length: 3m-10m (extendable)
Optical measurement system: transmissive infrared light measurement system, infrared wavelength 880nm

Installation of lathe grating rulerSteps as follows‌：

1. ‌preparation‌：

o Ensure that the lathe is in a stopped state and cut off the power supply.

o Prepare the necessary tools: Allen wrench, screwdriver, electrical tape, multimeter, etc.

o Check if the grating ruler and its accessories are intact, including the grating ruler, reading head, connecting wires, etc.‌1

2. ‌Install grating ruler‌：

o Select the appropriate installation position on the lathe bed and mark the installation position of the grating ruler with a marker pen.

o Use an Allen wrench to remove the screws on the lathe bed and fix the grating ruler on the bed, paying attention to maintaining the straightness of the grating ruler.

o Adjust the position of the grating ruler to be parallel to the guide rail of the lathe and fix it with screws.

o Use electrical tape to fix the connecting wire of the grating ruler on the bed to avoid pulling the wire during operation.

3. ‌Install reading head‌：

o Select a suitable installation position on the headstock of the lathe and fix the reading head with screws.

o Connect the connecting wire of the grating ruler to the reading head to ensure reliable connection.

o Adjust the position of the reading head to be parallel to the grating ruler, and ensure that the distance between the reading head and the grating ruler is appropriate.

4. ‌Debugging and Calibration‌：

o Connect the power, start the lathe, perform preliminary operation, and observe whether the data displayed on the reading head is stable.

o If the reading is unstable, the grating ruler needs to be calibrated. The calibration method includes using a multimeter to measure the output signal of the grating ruler, adjusting the potentiometer inside the reading head to achieve the optimal output signal.

o During the calibration process, pay attention to observing the operating status of the lathe to ensure the synchronization between the grating ruler and the lathe.

5. ‌Complete installation‌：

o After confirming that the grating ruler and reading head are working properly, tighten all screws to ensure that the grating ruler and reading head are securely fixed.

o Check if the connecting wires of the grating ruler are fixed properly to avoid detachment during operation.

o After installation, restart the lathe for trial machining to verify the actual effect of the grating ruler.

‌Precautions‌：

· The installation position of the grating ruler and reading head should avoid the splashing direction of chips, cutting coolant, and oil to prevent the grating ruler from being dirty or damaged.‌

· The installation base of the grating ruler cannot be directly installed on rough and uneven machine tools, let alone on machine tools that have been coated with primer. The grating ruler and reading head are installed on two components of the machine tool that move relative to each other.‌

· After installation, a limit device should be installed on the machine tool guide rail to prevent the sliding ruler from colliding with both ends of the fixed ruler during the machining process, thereby damaging the grating ruler.‌