Pick & Place Machine for PCB Assembly: A Brief Guide

Pick & place machines (P&PS) are a common type of component placement machine called surface mount technology (SMT).
pick-and-place machine

When it comes to the assembly of PCBs, some technologies are indispensable to the operation. One of these is the pick-and-place machines. Pick & place machines (P&PS) are a common type of component placement machine called surface mount technology (SMT).

Pick and place machines are robotic systems that are used for placing SMDs or surface mount devices onto PCBs (printed circuit boards).

Pick and place machines are very useful in PCB assembly because of their high speed and high precision. They are also used to place a wide spectrum of electronic components onto PCBs.

These electronic components can be integrated circuits, resistors, capacitors, and so on.

When the electronic components are fully inserted, the PCBs are used in a wide range of applications. They are used in computers, home electronics and appliances. They also have industrial applications like medical, telecommunications, military, automotive, and space equipment. Similar equipment can be used for the through-hole components.

The pick and place machine can sometimes be used for packaging microchips by using the flip-flop technique.

Humans versus machines in PCB assembly

When it comes to PCB assembly, you undergo a lot of phases to get the complete product. The paste is applied to the board, and as soon as this is done, you place the components on the top.

The individual components can be placed by hand. It can also be placed by a machine – the pick and place machine. Some PCB manufacturers make use of tweezers to place the components.

A lot of people are usually under the illusion that you need expensive and large machines for making electronics. This is not usually true!

Humans are sufficient when it comes to the effective placement of components on a board. Humans can be relatively fast when it comes to placing the components of a PCB.

Also, the liquid metal comes with the right surface tension which makes it easy for a lot of components to shift eventually into the correct location during the process of reflow.

However, humans are usually limited in terms of stamina. After working for several hours, they find it difficult to insert the components effectively. In addition to this, the components come in small sizes that can attain the eyes.

The importance of pick-and-place machines

A pick-and-place machine is not used to produce electronic products. However, a pick-and-place machine can be used to make a great number of electronics.

Some manufacturing companies prefer to place the components of their PCBs by hand. There is a certain element of authenticity and pride that many PCB assembly companies get by placing their components by hand.

However, pick-and-place machines are effective when you have hundreds of PCB units to build. In this case, you can get a pick-and-place machine to help you build as many boards as possible.

An overview of a pick-and-place machine

A pick and place machine (PNP) is robotic equipment that makes use of a vacuum for lifting components during a PCB assembly.

The PNP machine lifts the components away from their storage locations, adjust them the right way, and places them on the PCB. When it comes to using the PNP machine for PCB assembly, setting up this machine can take some hours. However, as soon as the machine is in full operation, it can be pretty fast.

In large PCB assembly facilities, you can use a conveyor belt to directly convey the PCB from the paste dispensing machine to the pick and place machine. This is where all the components get placed onto the PCBs.

Some other PCB assembly facilities prefer to manually move their PCBs through the different stations on the production floor.

The different uses for pick and place robots

When it comes to PCB assembly, pick and place machines can be used for various operations. They are primarily used in the process of manufacturing products. They can also be used for inspection, bin picking, and packaging.

When it comes to the common applications of pick-and-place robots, there could be several. Pick and place machines can be used in the following areas:

Assembly: When it comes to the assembly of products, pick and place machines can be used to grab incoming product parts from one place of the station, like the conveyor, and can be affixed or placed onto a different location or item. The parts are joined together, and when they do, they are then moved to the next station on the production floor.

Packaging: Packaging is an important production phase that involves the use of smart equipment like pick and place machines. A pick and place machine is applied in the process of packaging products to receive items from one part of the station and place them onto a packaging system.

Bin picking: Bin picking is a very important process when it comes to selecting components for PCB assembly. It involves the process of grabbing items and parts from bins and transferring them to the right station on the production floor where they are needed. The pick and place machines are equipped with sophisticated vision systems that enable them to distinguish sizes, shapes, and colours to easily pick up the right items. Pick and place machines come with very high precision that they have the automatic intelligence to pick the right component from a bin that contains randomly mixed materials. After selecting the right components from the bin, they are then transferred to a different station for packaging and assembly.

Inspection: Inspection is an essential process in the assembly of PCBs. During this process, it is important to make use of high-precision systems like the pick and place machines. Pick and place machines are used to effectively inspect products before they are shipped off to be sold. Pick and place machines are built with sophisticated vision systems that enable them to perform a range of functions effectively. Due to their advanced level of sophistication, the pick and place machines can perform various functions as a part of their inspection process. It can:

  • Identify and pick up objects.
  • Detect anomalies and errors.
  • Remove defective items or parts.

JHYPCB is a reliable PCB assembly company in China, providing one-stop PCB assembly services: Component Procurement, PCB Prototype Assembly, PCB Manufacturing, Manual Soldering, PCB Assembly Repair, Surface Mount Technology, Through Hole Technology, and Mixed Assembly Technology. If you are looking for a PCB assembly company near you, we are the right choice for you. We provide a detailed order guide and PCB assembly files; please send your requirements to sales@pcbjhy.com, and we will reply in time.

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