Radian laser tracker Application of Inspection and Adjustment for Four Roll Reversible Finishing Mill in Steel Mill

About the finishing mill

The finishing mill is an instrument used in the fields of power and electrical engineering. The main function is to use cold rolling technology for precision processing of aluminum foil. The finishing mill requires equipment to complete the entire process of rolling production, including main equipment, auxiliary equipment, lifting and transportation equipment, and auxiliary equipment. For single base rolling mills, there are reversible and irreversible working systems. In this case, a reversible four high rolling mill is used, and the main transmission mode is through the transmission of the support roller. To prevent phenomena such as the fracture of the support roller and the twisting of the work roller square head, the method of reducing diameter rolling and single roller drive is generally used, making the mechanical structure more complex.

The steel rolling machine is the main equipment for realizing the metal rolling process, mainly composed of upper and lower support balance roller devices, rollers, roller bearings, racks, rail seats, roller adjustment devices, and roller changing devices.

Among them, the upper and lower support rollers ensure that the working rollers are on the centerline of the entire machine, providing stability and balance, and providing rolling force;

The intermediate roller is a working roller, which moves back and forth in both directions to ensure that the steel is repeatedly rolled and undergoes plastic deformation, making the strip meet the size requirements and improving work efficiency.
Our customers

Liugang has issued a notice on the establishment of the First Steel Rolling Plant, which explicitly optimizes and merges the bar and wire profile plant and the medium plate plant, and names them as the "First Steel Rolling Plant". Our main products include: carbon structural plates, low alloy high-strength steel plates, bridge plates, ship plates, steel for high-rise buildings, steel for boilers and pressure vessels, steel for mechanical engineering and high-quality carbon steel, mold steel, and more than 60 varieties in multiple series. The products are widely used in the manufacturing, logistics, and automotive industries of engineering machinery, mold processing, bridges, ships, high-rise buildings, pipeline transportation, automotive beams, boilers, and pressure vessels. The main specifications of medium thick plates are 6.0-180mm in thickness and 1500-2700mm in width.

Customer needs
In the production of steel rolling, the normal operation of various equipment is necessary to ensure the company's output. Therefore, regular Maintenance of various production equipment is essential. In order to achieve timely and accurate problem detection during maintenance, it is necessary to simultaneously use many detection equipment, among which our Radian series Laser Tracker plays an indispensable role. Mainly used for the following applications:

1. Balance the diameter, wear degree, and installation surface size of the support roller;
2. The diameter of the work roller, the degree of wear, and the gap between the square head sliding plate and the installation window of the base;
3. The fitting size of the front and rear ends of the work roll with different diameters;
4. Is the installation adjustment consistent with the drawing requirements.

Above, the customer adopts the latest generation Radian Core Laser Tracker from API company, combined with high-precision reflective target ball SMR. The operator only needs to hold the target ball and collect data from the support roll, window end face, and work roll on the rolling mill to quickly analyze the desired results in the software, providing reliable improvement data for quality and production process.

This method mainly has the following advantages:
1. High precision measurement and installation
API brand Radian series laser trackers can achieve micron level accuracy in any harsh and complex on-site environment( μ m. 0.001mm), fully meeting the on-site measurement and debugging requirements of large-scale production equipment; Cooperating with Autolock automatic lighting system to provide users with more flexible and friendly measurement methods.
2. Unrestricted measurement environment
The Radian Core, with a highly integrated design and a measuring range of 100 meters in diameter, only needs to set up the equipment stably regardless of whether it is measured at the measuring station or directly on the high temperature rolling mill, without worrying about the measurement problem problem caused by the limited distance or too large workpiece. The operator only needs to hold the high-precision reflective target ball to collect data at the rate of 1000 points per second.
3. Autolock automatic lighting system
Once positioned, all required dimensions can be measured. The Radian laser tracker is integrated with an intelligent camera, and through its Autolock function, it can automatically search for and quickly lock the target ball when it moves to the next hole position, keeping the measurement operation smooth and allowing the operator to focus on the measurement operation itself.
conclusion
The Radian series laser tracker from API brand has ultra-high accuracy, large measurement range, rich usage functions, and flexible application methods, which can fully meet the measurement needs of the complex production inspection and assembly processes in the steel industry. Accurate and efficient, since its introduction into the field of steel engineering measurement, it has been fully recognized by many production departments and quality control units of steel groups, becoming an excellent solution for measurement and installation in the production field of the steel industry.

About API
The American Automatic Precision Engineering Company (API Company) was founded by Dr. Liu Jinchao in 1987 based on independent patented technology, and is headquartered in Rockwell City, Maryland, USA. Since its establishment, API Company has always been committed to the research and development and production of precision measurement instruments and high-performance sensors in the field of mechanical manufacturing. Its products have been widely used in advanced manufacturing fields around the world, and it is in a leading position in high-precision standards for coordinate measurement and machine tool performance testing. API Company has an experienced and capable team that continuously develops advanced and innovative products to meet the needs of rapidly developing industrial technology. API company is an active participant and key technology partner in many international cooperation projects and key national projects. The achievements of API company enjoy a high reputation in the international precision measurement field.