Engineering Machinery

PMT Meets the Various Inspection Needs of Large Workpieces and Effectively Improves the Overall Product Quality.

The comprehensive development of modern urbanization road reform has been facilitated by city’s infrastructure, which lies in the reliable support provided by engineering machinery. During the process of accelerating construction, a substantial demand market has emerged, driving the rapid growth of domestic engineering machinery and fostering a group of excellent enterprises such as China Railway Construction Heavy Industry Co., Ltd, Sany Group, Zoomlion Heavy Industry Science&Technology Co., Ltd., and XCMG Construction Machinery. The field of engineering machinery finds extensive applications in industries such as construction, mining, railways, highways, water conservancy, etc. These machines are subjected to highly challenging environments during operation, which poses a huge test to the quality of it. In order to ensure the competitiveness of engineering machinery products, it is crucial to establish a perfect quality management system that continuously enhances the control over equipment quality, thus leads to production optimization, cost reduction, and efficiency increase.

It’s hard for engineers to carry the large and heavy parts of machinery products. To cope with inspection tasks in various stages, it fails to fulfill the requirement by using traditional measurement method that attributes to its poor accuracy and difficulty in inspecting large-sized workpieces. For this reason, PMT portable arm serves as a 3D dimensional measurement tool that offers on-site solution, simple operation, and digital reporting capabilities. The portability and other outstanding features of the PMT Portable CMM make it play an essential role in daily production quality management.

Parts Verification

During the design and development of new products, it is always challenging to measure such large sized samples with traditional methods and certain dimensions can not even be inspected. Instead, the PMT ALPHA Portable Measurement Arm allows us to verify consistency between design drawings and physical samples. This machine can detect geometric dimensions and tolerances (also known as GD&T) easily. Additionally, the PMT ALPHA 7-axis portable coordinate measurement machine with SD scanning head provides a non-contact measurement solution for reverse verification of samples.

Easy to Install: The PMT portable arm can be installed on the site where large workpieces are placed, with no need to hoisting;

Quick Point Selection: Evenly select points in the measurement of the installation plane, at least only 4 points are needed to calculate the flatness of the installation plane and analyze the height and deformation of the plane;

Simple Measurement: In coaxial measurement, only the cylindrical features on the inner wall of the bearing hole are required, eliminating the need for additional tools. The PMT portable CMM can work with software to provide a construction function based on the common axis method to quickly calculate the coaxiality of the bearing hole. For instance, during reverse verification of large workpieces with complex curved surfaces like buckets, scanning can commence immediately after equipment installation. The scanning range can be expanded using transfer functions without requiring cloud point data splicing, ensuring overall data accuracy.

Production Process Monitoring

Engineering machinery parts are usually made of large steel or steel castings spliced together using welding technology. The precision of finished parts is affected by their own weight and welding thermal deformation, resulting in uncontrollable deformation after cooling. Therefore, it is crucial to conduct regular inspections on these parts by portable measurement arms.

  • Multi-workpiece Inspection Function: The PMT measuring arm is capable of efficiently measuring batches of identical model parts with a single click through this function. Once the portable CMM captures data points guided by the software, the report can be generated promptly;
  • Intelligent Storage of Report Data: The program can be saved directly for a large volume of batch part reports, and it can be opened whenever needed to export or print the individual part reports separately.

Products Certification

The logistics time cycle for parts products sent overseas for assembly is often lengthy, resulting in difficulties with after-sales service when product issues arise. By utilizing a measuring arm for inspection, the occurrence of defective product outflow can be prevented, thereby reducing waste. Additionally, the PMT portable arm can provide customers with real measurement data reports to verify and validate the product’s qualification, thus avoiding unnecessary liabilities and earning customer trust.

  • The measuring force is minimal and does not cause any surface damage to the workpiece. The zircon probe of PMT measuring arm enables point selection by simply making contact with the workpiece surface, without causing any harm to the paint or affecting the appearance of the workpiece.
  • The PMT portable coordinate measurement machine is equipped with WiFi wireless transmission function, and the low-power circuit design of the measuring arm ensures a working time of about 12 hours, eliminating the need for on-site electricity or wiring connections.

After-sales Fault Analysis

The portable arm can be utilized by after-sales service team to inspect and verify suspected faulty parts in case of quality issues arising during on-site product usage. This enables the identification of the root cause of the fault, expediting after-sales service, identifying design or manufacturing defects, and providing improvement suggestions for optimizing production.

The logistics box equipped with PMT arm is anti-fall and shockproof, which provides very good protection and is convenient to carry when going out;

PMT portable CMM is light in weight and easy to install, making it an ideal choice for outdoor field applications.

Improve Assembly Accuracy

 

The clearance often exists in the assembly of various parts of engineering machinery, which results in qualified parts with unsatisfactory equipment operation. When using traditional inspection tools for assembly assistance, it is necessary to rely on additional references such as reference planes or rotation axes, which may indirectly lead to uncertainty in error.

 

  • Flexibility to Establish Coordinate System: PMT portable arm can use the installation surface of the assembly to establish a coordinate system, and then measure and verify the position of the assembled parts after assembly.
  • Real-time Coordinate Function: When using PMT measuring arm, the coordinates of the probe sphere center are fed back in real time. This function of the portable CMM enables fine-tuning of assembly parts within the current coordinate system to enhance assembly precision and efficiency.
  • Wide Applications: By combining the PMT measuring arm with the CMM, along with other intelligent manufacturing technologies, it is possible to achieve automated production and inspection so as to enhance the whole assembly precision.
Improve Assembly Accuracy

FAQ

Manufacturing and Assembly

In manufacturing and assembly, precise measurement solutions ensure components meet design specifications. Tools like CMMs and portable measurement arms verify dimensions, alignment, and tolerances, ensuring quality control and efficiency during production and assembly processes.

Engineering Machinery Measurement Solutions

Engineering machinery measurement solutions include tools like CMMs, laser scanners, and portable measurement arms to assess critical machine components. These solutions ensure precise measurements of dimensions, alignment, and geometric tolerances, improving manufacturing accuracy and efficiency.

Measurement Data Analysis

Measurement data analysis involves processing collected data to evaluate dimensions, tolerances, and quality. Tools like CMM software provide visualizations, statistical analysis, and reports to identify deviations and improve production processes effectively.

How to Measure Key Dimensions of Structural Parts?

Critical dimensions like hole diameter, flatness and perpendicularity can be captured using CMMs or portable measurement arms. The PMT portable arm offers flexibility for on-site inspection with its features of high accuracy and ease of use, becoming an ideal tool when measuring large complex structural parts.

What are the significant advantages of PMT Arm？

PMT Portable Measurement Arm has shown significant advantages in the field of tooling inspection and adjustment. Its high-precision measurement capability and excellent stability ensure the accurate positioning and adjustment of tooling equipment, effectively enhancing production efficiency and product quality. Therefore, it has become an indispensable and efficient tool in such field.

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