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How to improve the accuracy of SMT mounting

时间:2022-02-28 10:15:00      来源:      浏览次数:11

The accuracy of SMT placement includes placement accuracy of the placement machine, repetition accuracy of the placement machine, and resolution of the placement machine. After load balancing, in order to improve the power of the patch, some measures have been taken to pick up as many equipment as possible at the head. Below, the editor will provide a specific introduction to the relevant content.

1、 Accuracy of SMT patches

1. Positioning accuracy of the SMT machine

Positioning accuracy refers to the size of errors in the orientation of practical placement components and the orientation of components set by the placement machine. There are two factors that affect placement accuracy: translation error and rotation error. Translation error mainly comes from the X-Y axis positioning system, while rotation error refers to the poor accuracy of the alignment organization of components.

2. Repeated accuracy of SMT machine

Repetitive accuracy refers to the error that occurs when the SMT mounting machine repeatedly installs a specific coordinate orientation. Therefore, the sample accuracy provided by the SMT mounting machine is reflected by the repeated accuracy of the mounting machine.

3. Resolution of SMT machine

After the mounting head receives the pulse command signal, the resolution of the R-axis is the resolution of the mounting machine. The R-axis of the mounting head will rotate by degrees, and the current good mounting machine resolution reaches 0.0024/pulse. Resolution can also be simply understood as measuring the minimum increment of machine operation, and measuring the motion accuracy of the machine itself is an important performance indicator.

2、 Improve the power of SMT patches

1. Load balancing. To ensure that the number of patch components for two SMT mounting machines is reasonably allocated while the mounting time is the same.

2. SMT mounting machine itself. The SMT mounting machine itself has a maximum speed value, but it is usually difficult to achieve this point, which is related to the X/Y structure mounting machine. In terms of mounting speed, it is necessary to take as many equipment measures as possible to pick up the head. In addition, during the placement process, components of the same type are placed together to reduce the number of assembly times and save placement time.

The entire production process of SMT mounting machine production line involves many equipment in practice, but if any equipment runs too slowly during the processing process, it will delay the entire mounting process and affect the implementation of practical processes. Therefore, it is necessary to have scientific and systematic theoretical guidance, as well as experienced personnel operating on-site, in order to maximize our expectations.


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