Application

Tool Verification

With the rapid development of the automobile industry, customers pay more attention on the safety, power performance and body shape, and all the demands are down to the strict quality requirements for stamping, welding, final assembly and coating.

Because of the high quality control requirements of the factory and the non-standard tooling of the production line, there are extremely strict parameter requirements for the precision control and quality inspection of each component during assembly. Portable measuring equipment has been used for quality control of automobile production line, including welding fixture inspection, production line quality control, etc. The automobile welding production line means to assemble all the stamping parts and then weld to the formers including the production line of engine parts, side body, car floor and roof.

The engineer is inspecting the tooling with PMTARM

According to the different needs of customers, portable measuring equipment can easily complete the point-to-point contact measurement as well as measurement task for all angles. The extremely flexible measuring arm enables customers to complete multi-stage and complex detection tasks. Magnetic mount can be installed in any workshop to establish basic data of location hole and locating surface. Besides, PMTARMS fully meet the measurement requirements of accuracy within 0.1mm for positioning fixture while the accuracy within 0.2mm for the auxiliary positioning fixture. The caliper, height gauge are the common tools before the use of measuring arm. The disadvantages of those kind of manual measurement methods are not only waste time, cannot meet the accuracy requirement, but also cause human errors. It’s impossible to measure even more complex parts.

There are three periods for the PMTARMS applied in the production. Firstly, parts measurement before assembling. It is necessary to detect the tolerance of precision and hole distance to ensure the assembly process will not be affected by the defects of the tooling itself. Secondly, inspection of equipment integration. When the equipment is integrated, the location accuracy is needed to be detected including the welding fixture and the whole production line. The quality control of finished products is helpful to keep consistent with data from location points and model parameter to avoid the influence of welding accuracy caused by equipment. Thirdly, measurement at customer site. Before welding we will assist customer to adjust deviation values between finished products and models.

Measurement report shows as below.