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Why do we need to open a pallet for SMD welding when the PCB is assembled? [Copy link]

Author: Wang Huidong, a member of Yibo Technology Expressway Mr. We-media
If I use one sentence to describe Maomao's recent life, it is half bad luck and half dealing with bad luck.


As soon as I arrived at the company early in the morning, I was called into the office by Manager Xie, who is known as the Golden Lion King in the office.


"Maomao, your project has reached the mounting stage. The factory said that you need to open a pallet for this board. And the number of pallets is not small."


"Manager Xie, why, do you need to open a pallet?" Maomao stuttered.


The picture below is the legendary patch pallet.




Lion King glared and said, "Factory E said the board size is too small."


"I assembled the boards and added process edges. Did they make a mistake?"


"Are you sure?" Lion King narrowed his eyes again.


"Supervisor, I am sure I assembled the boards." Mao Mao said firmly. He couldn't help but imagine what the PCB looked like after he assembled the boards.




Although the board is small, the board is well assembled. The production details must be considered in every aspect. When Maomao thought of this, a smile appeared on his face.


The supervisor glanced at Maomao and smiled slightly. This smile made Maomao's hair stand up all of a sudden.


"How did you assemble the board? What is the size after your assembly?"


"The design unit size is 25*20mm. I assembled the board with 1*2 zero spacing, added process edges on the top and bottom, and the width of the process edge is 5mm. The size of the finished product is 35*40mm."


"Well, it's well assembled. You can go to E Company's production line tomorrow to follow the line, and go to the production line to learn more about the production capacity. In addition, you can help change the pallet on the production line, and summarize the experience of tomorrow's follow-up, and come back to share it with other colleagues. Okay, go and get ready, go to the factory early tomorrow." After saying this, the lion king started to work, and Maomao returned to his seat silently.


On the first day when Lin Ruyan and Zhao Ligong came to the PCBA factory production line to learn, they saw a familiar figure. Although everyone was wearing anti-static clothing, some obvious features could not be hidden, such as the acne on Maomao's face and the depressed expression.


When Zhao Ligong saw Maomao, he shouted from a distance: "Maomao, you are doing well recently. You come to our factory production line again. High-yield big farmer, high-yield big farmer."


Lin Ruyan also smiled and greeted Maomao with a pair of beautiful eyes.


When Maomao saw these two old classmates, his face suddenly turned red. Several large acnes were like the small tips on the ripe strawberries, delicate and tempting.


Especially when Maomao saw the goddess he secretly loved, he panicked. His hand slipped, and the tray fell and hit his feet, causing Maomao to grimace in pain.


Engineer Zhao ran over and said, "Maomao, is it because of my brilliance that you bump around everywhere? Look, the tray is broken."


Lin Ruyan also ran up and asked, "Maomao, are you okay?"


Maomao said, "It's okay, Ruyan, I'm far from dead, but Engineer Zhao, will you treat me to a meal tonight to make up for it?"


"Make up for it, I'll make it up for you, it's a piece of cake, just sprinkle some water." Engineer Zhao looked at Maomao and said with a smile.


"Maomao, you are here to follow the line, why are you still studying the tray here, you are too serious," Engineer Zhao added.


"I..." Maomao was about to say something but stopped, but his face turned even redder.


"Hey, Maomao, why is the size of this board so small? You even need a tray, you are really rich." Engineer Zhao said in surprise.


Engineer Zhao's words hit Maomao's sore spot.


Maomao said embarrassedly: "At that time, I was afraid that the number of boards would be too large. I was worried that there would be crossed boards during factory production, which would affect production efficiency. So I assembled fewer units at that time. Who knew that I would have to open a pallet?"


"Haha, Maomao, you are too concerned. The size of the panel is too small, less than 55*55mm. The track of the placement machine cannot adjust to such a small size. It cannot clamp the PCB board and cannot paste SMT components. You have been running in the field of hope, but you were tripped by the disappointment. But you have so many boards, it will take a long time to change the pallet, just in time for the midnight snack, and then I will make up for it for you."


The figure below shows the track of the PCB placement machine. The minimum adjustable width is 50*50mm. The recommended designed PCB board or the minimum panel size is 55*55mm.




Maomao said deliberately while gritting his teeth. "Ligong Zhao, you really enjoy making fun of others. Just curl up and leave the earth in a round shape."


Looking at Ligong Zhao's squinting eyes, Lin Ruyan glared at him, crossed her hands on her waist, snorted, and then said softly: "Ligong Zhao, instead of sighing, you might as well change. Now you help Maomao change the tray, and I will take Maomao to visit the production line. If you don't finish these tasks, you will stand aside in the evening and watch Maomao and I eat and drink delicious food."


Maomao quickly handed the tray in his hand to Ligong Zhao's arms, gave him a meaningful look, and then happily followed Lin Ruyan to visit the production line, leaving Ligong Zhao disheveled in the wind.

This post is from PCB Design

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Bullshit, right? The factory usually reassembles the panels, unless the customer requests that the paneling method not be changed.  Details Published on 2021-5-26 11:15
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深圳市一博科技股份有限公司

 

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If you can't assemble it yourself, you can ask a cardboard factory to assemble it.

They can assemble for free and make reasonable use of the boards.

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Good article

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The small boards were sent to him and he assembled them himself.

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射频【放大器】

 
 
 

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The author's novels can be seen often.

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加油!在电子行业默默贡献自己的力量!:)

 
 
 

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It's a waste to leave a 10*20mm board edge for a board the size of a fingernail. The hair is really worrying.

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Bullshit, right? The factory usually reassembles the panels, unless the customer requests that the paneling method not be changed.

This post is from PCB Design
 
 
 

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