With the rapid development of the new energy industry, the production quality of new energy vehicle batteries has been continuously improved, 

and the requirements for product performance, safety, and reliability of battery packs have become stricter; At this point, an automated testing 

equipment is needed to meet its accuracy requirements. Therefore, quality control, as an important link in the production and manufacturing 

process, is an important condition to ensure that major manufacturers complete high-quality delivery.

o how do we ensure the assembly accuracy of new energy vehicle batteries and how do we conduct inspections?

During the series connection process of the battery pack, if there are issues with poor assembly such as warping, bulging, and inability to install 

the battery cover, it will directly affect the safety performance of the entire vehicle;

So, every battery shell requires strict size control. In addition to controlling the size well, it is also necessary to ensure a flatness between the 

battery and the surface of the shell, which is convenient for later assembly. This requires maintaining small errors in product quality testing and 

data analysis.

Detection method

New energy battery shell detection method: using a joint arm coordinate measuring machine for detection;

For the detection of large-scale battery shells, using a measuring arm is more convenient and can save a lot of manpower and equipment costs. 

Data collection and accuracy verification of workpieces can be carried out, and combined with the tolerance requirements of production inspection

 tools, data can be quickly adjusted.

Characteristics of articulated arm measuring machine

The joint arm measuring machine is not affected by the environment and temperature, and can move freely. Its biggest advantage is that it can 

be placed and tested as needed.

1) On site measurement: The articulated arm measuring machine has no special requirements for the environment and can be used in the production 

workshop. Accompanying the production line can timely detect product quality issues and reduce scrap rates.

2) Measurement of complex workpiece parts: Various fixtures, gauges, and other small and large products can be measured on-site.

3) Online detection: Traditional detection methods cannot be used for online detection, and joint arm measuring machines can be used for real-time 

detection of workpieces during product processing.

By conducting on-site measurements on products, problems such as deformation and wear can be detected in a timely manner, and molds and production 

processes can be adjusted in a timely manner to reduce the occurrence of subsequent assembly problems.

Integrating the joint arm measuring machine into the battery testing workflow of new energy vehicles ensures that each battery is accurately processed in

 its assembly position, enabling seamless installation of battery modules; It can greatly improve production efficiency and reduce labor and production costs.

So, regardless of the industry, as long as you want to know its size and tolerance, you can use a portable articulated arm to complete testing. Moreover, 

Huashengda is a manufacturer specializing in testing services. Nowadays, articulated arms have become increasingly popular and convenient to operate, 

and have become one of the preferred tools in the measurement industry.

With the continuous development of the construction industry, the use of excavators in heavy industry machinery is increasing day by day. Firstly, it

 is required that excavator manufacturing enterprises must increase production scale, and secondly, it is required to improve the production capacity

 of production lines in excavator products；The production can be significantly increased, while also ensuring effective control of excavator product quality, which is an important link in the early

 inspection of excavators.

The structural design of each link of the excavator is very complex, and in order to produce qualified products, it is crucial and essential to control 

the quality of each link in the early stage.

But how do we detect it? What kind of testing tool can be used to solve such problems, which is both efficient and accurate?

Solution:

The use of portable joint arm measuring machines can effectively control product tolerances. At the same time, Huashengda is a manufacturer 

specializing in measurement services with a range of up to 9 meters. For some large-sized and difficult to move products, they can be positioned 

to complete the full size inspection in one go. To ensure the production of qualified products, online testing can be 

achieved at any time.

In order to use excavators more flexibly during the working process, there must be deviations between the longitudinal height values and lateral

 distances (or other parts) of certain components, which can cause friction and damage to the parts due to prolonged operation. In order to 

reduce this error, the articulated arm measuring machine plays an important detection role, which can quickly collect and accurately measure, 

and determine whether the product is within normal tolerances through this inspection method, Thus improving the detection efficiency of the 

product.

By using a joint arm measuring machine, specific positional deviations of components can be obtained and corrected at any time, greatly shortening

 the detection cycle and improving overall productivity.

Advantages of the plan:

1. Efficient: Measuring excavator components in minutes per hour greatly improves detection efficiency and productivity;

2. Speed: Quickly collect data, generate point cloud patterns, and combine them with mathematical models to analyze tolerances;

3. Portable and precise: Convenient to carry and move, capable of precise measurement in extremely harsh environments, suitable for various detection 

scenarios;

4. Large scale inspection: For some large workpieces, it can be easily completed while ensuring its accuracy;

5. Ultra long standby: Use wireless Bluetooth connection, low energy consumption, and hard test for up to 8 hours;

The car body is composed of many components that are welded together, and welding fixture inspection is an important step to ensure that the dimensions of the car body and other components can be accurately combined together. Our ultimate goal is to produce qualified car shells.

The errors in the manufacturing and installation process of welding fixtures are inevitable, and the accumulation of errors may cause difficulties in later product assembly or batch deviations. Only by formulating solutions and adjusting the error accumulation to a controllable range, can the accuracy of product positioning be ensured. It is very important to choose a flexible and convenient measurement system. Usually, an intelligent detection device, a portable articulated arm measuring machine, is used to detect it, To ensure the accuracy of the product.

The following are the photos taken by Huashengda technical engineers during on-site workpiece inspection, assisting customers in solving a series of inspection problems in welding fixtures and component testing; 

Measurement accuracy using CNA7 axis articulated arm measuring machine

Measurement accuracy using CNA7 axis articulated arm measuring machine

Measurement accuracy using CNA7 axis articulated arm measuring machine

The above data tests are all qualified.

By detecting online fixtures, reliable data analysis is provided for production quality issues such as vehicle consistency and assembly difficulties. The actual 

and theoretical deviation values and adjustment plans of the fixtures are provided to ensure that the positioning dimensions of the fixtures are consistent 

with the mathematical model;

When assembling the qualified fixture with the vehicle body, there is no significant deviation and it does not affect the normal progress of the next process, 

indicating that the product has been verified to be qualified.

The CNA series articulated arm measuring machine has good flexibility and is not limited by any environmental temperature (built-in temperature 

compensation). It can detect and scan any installation hole position and surface on the vehicle body;

Since Huashengda's technical engineers conducted real-time monitoring of production components, major enterprises and automotive OEMs have made 

qualitative improvements in measurement efficiency; Greatly improve work efficiency.

Measuring large components, molds, etc. used to be a difficult and time-consuming process that typically required special inspection areas.

Huashengda technical engineers have provided a set of measurement solutions to effectively control product quality for customers.

The portable wireless laser tracker can easily and quickly measure on-site workpieces, greatly shortening the detection cycle; By tracking the target that the user moves from one point to another on the measurement object to measure three-dimensional coordinates, these measurement results can be easily compared with CAD digital models in just a few seconds, and the data can be adjusted at any time.

Here are the on-site photos taken