How to distinguish the nozzle of the placement machine, and how to choose the nozzle of the SMT plac

According to the different nozzles and different materials, the suction nozzles of the placement machine are very different.

For example, the nozzle of some chip components may be more than 100 yuan a piece, and some of the nozzles that absorb special-shaped parts may be nearly a thousand yuan, I am taking the siemens placement machine as an example to illustrate, in fact, such as panasonic, yamaha, fuji these machines are similar, and now the imitation on the market is very cheap, and some can achieve the effect of being fake, but there is still a difference in use, and experienced engineers can find the problem as long as they look at it. The main thing is that it is different from the material.

The number of nozzles of each manufacturer's placement machine is different, but they are all divided into high-speed head and general-purpose head. 1. The high-speed head mainly absorbs relatively small components, such as 0201 and 0402. 2. The general-purpose head mainly absorbs relatively large components or some special-shaped components.

The placement speed of the general-purpose head is relatively slow.

A1 502 nozzle is commonly used for 0402 0603 and other small size devices, A2 503 nozzle is commonly used for 0603 0805 and other size devices, A3 504 nozzle is commonly used for 1206 4148 SOT23 1210 3528 2835 3030 devices, lamp beads, etc.

A4 505 nozzle is commonly used in S0P-8, 5050, 3528, etc., and is common with 504 nozzle.

A5 506 is commonly used for larger devices such as 5050 SO-4 SOT-223, and 507 508 is commonly used for larger chips such as QFP and LQFP.

It may be due to the wear of the suction nozzle, insufficient vacuum negative pressure, the influence of the feeder, etc.

Nozzle wear: due to the wear of the nozzle of the placement machine, the nozzle is deformed, blocked, and damaged, resulting in insufficient air pressure, resulting in the inability to suction the components.

Insufficient vacuum negative pressure: when the suction nozzle of the placement machine takes the component, a certain negative pressure is generated at the nozzle, and the component is adsorbed on the nozzle, and the negative pressure detection method is generally used to determine whether the nozzle picks up the element, and if the vacuum negative pressure is insufficient, it will not be able to provide enough suction power to suction the element.

Influence of feeder: Poor feeding of feeder leads to deformation and rust of the belt cover, spring and other running mechanisms, resulting in deviation of components, vertical pieces or inability to absorb devices.

Solution: 1. Pay attention to the wear and tear of the nozzle regularly, and replace it in serious cases.

2. During use, the vacuum negative pressure should be checked frequently, and the suction nozzle should be cleaned regularly. In addition, attention should be paid to contamination of the vacuum filter element on each mounting head. If the contamination is found to be blackened, it should be replaced.

Hello,,Placement machine nozzle setting steps: 1. Prepare the placement machine nozzle, install the placement machine nozzle according to the requirements of the operation manual, and put the material into the material tray; 2. Open the console of the placement machine, enter the parameter setting interface, and set the moving distance of the nozzle and the pressure of the suction nozzle according to the size of the material; 3. Adjust the pressure of the nozzle so that it can easily absorb the material base with the material, but not too large, so as not to damage the material; 4. Enter the size of the material and the position of the nozzle on the console, and determine the moving distance of the nozzle; 5. Set the pressure of the nozzle on the console to make the material not easy to fall off, but it will not damage the material; 6. When the setting is completed, you can use the placement machine to test the pasting machine to see if the nozzle can work normally; 7. Check whether the suction nozzle of the placement machine is working normally, if it is normal, the setting is completed, if it is not normal, then readjust the parameters until the nozzle of the placement machine works normally.

The suction nozzle of the placement machine is not only the key part of the placement machine to absorb the components for pasting and putting action, but also the background of the camera of the optical vision system when taking pictures, it mainly uses the vacuum adsorption principle to absorb the components, and uses the blowing to put the components adsorbed in the nozzle to the coordinate position of the circuit board. Guangshengde will introduce the working principle and characteristics of the placement machine nozzle in detail in the form of **.

Different nozzles should be used for different components. In order to have a good background during image acquisition, so that the target information can be highlighted smoothly during image processing, almost every nozzle has its reflection background, when extracting the image, the nozzle is used as the background, so that the image of the element is stronger than the Zen content digging degree, and it is clearer When the nozzle of the placement machine sucks the element, in an ideal situation, the center of the element, the center of the nozzle and the spatial center of the obtained image should coincide, and the adjustment of the optical vision system is actually to compensate for the actual work of the old empty should not be heavy.

When people design the nozzle, considering the above nozzle function, people usually design the surface of the nozzle contact element as a central symmetrical shape, and the nozzle background plane as the background of the photo is designed as a matte surface and the surface is not mixed, of course, this background is usually designed as a single color, such as black and green.

This is because the air source of the placement machine is caused by the presence of moisture in Sun Xiao, and the air source required by the placement machine is clean and cannot contain oil and water. An air filter and dryer should be installed between the air compressor and the placement machine. Gas storage tanks.

The harm of moisture in the air source of the sticker and the tablet: 1. Abnormal loss and damage of machine parts; 2. Patch throwing; 3. It may pollute the components during placement and cause quality accidents.

Placement machine.

Pro, I'm glad to confirm the wrong adjustment method for your placement machine nozzle: First, the nozzle itself is defective and needs to be replaced with a new nozzle. The second is that the assembly of the nozzle is incorrect, at this time, the nozzle can be correctly assembled by referring to the manual, and re-search for confirmation.

Third, the gap between the nozzle and the machine hardware is too large, and the machine clamping device can be adjusted at this time to make the gap between the machine and the nozzle become a normal gap. Fourth, the rotation speed of the machine is wrong, and it can be adjusted by adjusting the controller until the appropriate speed is reached. Finally, after the adjustment, the nozzle action should be confirmed again, and a detailed record book of the world should be made, so as to find any abnormal conditions and problems that often stop in time, and deal with them in time.

Hello dear, I'm glad to answer for you. The following methods can be used to adjust the position of the suction nozzle of the placement machine:1

Check the nozzle for damage or wear, and if there is a problem, replace the nozzle. 2.Adjust the nozzle drain height to ensure that the distance between the nozzle and the element is appropriate.

3.Adjust the vacuum level of the nozzle to ensure sufficient suction power to firmly attach the element. 4.

Check the condition of the component, if the surface of the component is damaged or deformed, it may cause the nozzle to be unable to adsorb or accurately locate by the non-destructive pure method after adsorption.