Classification of laser welding machinesLaser welding machine is also often called laser welding machine, energy negative feedback laser welding machine, laser welding machine, laser welding machine, laser cold welding machine, laser argon welding machine, laser welding equipment, etc.1. According to its working mode, it can be divided into: laser mold welding machine: it is mainly used for mold repair in mold manufacturing and molding industries such as mobile phones, digital products, automobiles and motorcycles, as well as manual welding.

Automatic laser welding machine: it is suitable for automatic welding of straight line and circumference of metal workpieces. It is commonly used in mobile phone battery, jewelry, electronic components, sensors, clocks and watches, precision machinery, communication, handicrafts and other industries. Resistance laser welding machine: it is more suitable for welding two positions at the same time, such as resistance, capacitance and other electrodes. Laser spot welding machine: it is mainly designed for some irregular objects such as gold and silver jewelry, micro and small parts. It can be used for repairing holes in gold and silver jewelry, electronic components, spot welding sand holes, welding inserts, etc.

Optical fiber transmission laser welding machine: better beam quality, finer spot, stronger energy, more stable output and higher welding accuracy. It is mainly applicable to the welding of buttons, battery lugs and other products and materials with small and high precision requirements.. Sensor welding machine: it is specially used for sealing welding of various underwater sensors, temperature sensors and special sensors. Fiber laser continuous welding machine: fiber laser continuous welding machine is a machine that realizes welding through a continuous light emitted by fiber laser. The light output mode is continuous. Because of its continuity, it has stronger energy and greater heat, which can instantly melt the product welding point and realize welding. It is mainly used in medical treatment, mobile phone, battery, electronics, hardware, instrument, optical communication, aluminum and other industries.

Galvanometer laser welding machine: compared with the traditional automatic welding machine, galvanometer welding controls the direction of laser through galvanometer to form round, square and other patterns. So what moves is the laser, not the previous workbench or fixture. So it's faster and more accurate. It greatly saves time cost and labor cost. Mainly used in: toys, mobile phones, electronic products, automobiles and other industries.2. According to the laser, it can be divided into: YAG laser welding machine, semiconductor laser welding machine, fiber laser welding, etc.Characteristics of laser welding machine

Laser processing is to irradiate the surface of the workpiece with the laser beam, and use the high energy of the laser to operate, melt materials and change the surface properties of the object. Because laser has the characteristics of high brightness, high directivity, high monochromaticity and high coherence, it brings the following rare characteristics to laser processing: because it is processing without knowledge, there is no necessary impact on the workpiece, so there is no mechanical deformation; there is no "tool" wear and no "cutting force" acting on the workpiece during laser processing;

during laser processing, the laser beam has high energy density, fast processing speed and local processing, which has no or minimal impact on non laser sunlight parts. Therefore, the heat affected zone is small, the thermal deformation of the workpiece is small, and the previous machining is greater than; because the laser beam is easier to guide, discuss and construct direction conversion, it is not easy to correspond with the NC system and process simple workpieces, so it is an extremely flexible processing method; high production efficiency, stable and reliable processing quality, good economic and social benefits, and advantages of laser processing

With the development of laser welding machine getting better and better, it is faster and more convenient to repair mold with mold laser welding machine than ever before, but it is still a technical activity, which requires a lot of experience accumulation to control it. So, what precautions do we usually have when operating the mold laser welding machine to repair the mold?1. When repairing the mold with the mold laser welding machine, observe the mold and repair welding with a microscope, and observe with both eyes at the same time, so that the specific situation of the mold can be observed during observation.2. The welding wire should also be selected correctly during operation, because only the welding wire is selected correctly can the mold be repaired (the diameter of 0.2-0.8 can be melted). If it is not used correctly, the repair effect of the mold will be affected, and even the mold cannot be repaired.

3. The materials of different molds are different, including galvanized, beryllium copper and aluminum. Only by understanding the material of the mold can we set the corresponding parameters to achieve the repair welding effect.4. The mold laser welding machine must be protected by argon, and the program should be set to output argon first and then laser to prevent oxidation of the first pulse laser during continuous processing.5. When the mold is laser welded, the most common is that there are bite marks around the welding part. The welding part shall be covered by laser empty beating to prevent the occurrence of bite marks. The spot exceeds the welding position (0.1mm).

6. Parameters that can be set for the power supply of the mold laser welding machine: current 50-400a, pulse chamber 0.1-20ms, frequency car 0-50. When welding the mold normally, the processing parameters are as follows: current: 90-120, pulse width: 4-6; The frequency is 5-10. When welding beryllium copper and aluminum, the current increases by 30-50a7. CCD system (camera system) can be used for monitoring. The function is that in addition to the operator's observation from the microscope, non operators can watch the whole burning process through the display screen of the camera system.

LED lamp is an electroluminescent semiconductor material chip, which can directly convert electricity into light. Use silver glue or white glue to cure it on the support, then connect the chip and circuit board with silver wire or gold wire, seal it with epoxy resin around to protect the internal core wire, and finally install the shell, so the seismic performance of LED lamp is good.

The structure of existing LED lamps is usually that the substrate loaded with LED semiconductor chip is vertically contained in the lamp tube. The semiconductor chip is composed of two parts. One part is p-type semiconductor, in which holes are dominant, and the other end is n-type semiconductor, mainly electrons. But when the two semiconductors are connected, a p-n junction is formed between them. When the current acts on the chip through the wire, the electrons will be pushed to the p region, where the electrons and holes compound, and then emit energy in the form of photons. This is the principle of LED light emission. The wavelength of light, that is, the color of light, is determined by the material forming the p-n junction.

characteristic:1. Energy saving: the energy consumption of white LED is only 1 / 10 of that of incandescent lamp and 1 / 4 of that of energy-saving lamp.2. Longevity: the service life can reach more than 100000 hours, which can be described as "once and for all" for ordinary family lighting.

3. It can work at high speed: if the energy-saving lamp is started or turned off frequently, the filament will turn black and break down quickly, so it is safer.4. Solid state package, belonging to the type of cold light source. Therefore, it is easy to transport and install, and can be installed in any micro and closed equipment, not afraid of vibration.5. LED technology is progressing with each passing day. Its luminous efficiency is making an amazing breakthrough, and the price is also decreasing. An era of white LED entering the family is coming rapidly.

6. Environmental protection, no harmful substances of mercury. The assembly parts of LED bulbs can be easily disassembled and assembled. They can be recycled by others without being recycled by the manufacturer.Solder manufacturing process of LED lamps:

Because the semiconductor chip main control circuit board in the LED lamp is flake, and the annular base strip is circular, it is difficult to locate when welding the main control circuit board and the annular base strip, and there is no corresponding automatic welding equipment. At present, it is manual welding, the labor efficiency is low, and the work efficiency cannot be improved, Even if some special automatic welding equipment can complete solder treatment, the equipment production cost is very high. Therefore, Shenzhen Zichen laser equipment Co., Ltd. has improved the welding process of this product to enable it to realize the purpose of automatic welding after manual loading.

The laser automatic soldering machine for LED light plate includes a laser automatic soldering system, a 4-station rotating workbench, and several fixed fixtures for placing the LED light plate to be soldered. The welding process has the functions of CCD intelligent positioning, digital temperature control, pre welding tin spot welding and post welding detection. Nowadays, the laser soldering machine produced by Zichen is widely used in the automatic welding of LED lamp industry.fqj

1. Difference in working principleThe laser welding machine uses high-energy laser pulses to locally heat the material in a small range. The energy radiated by the laser diffuses into the material through heat conduction, so as to melt the material and form a specific molten pool.

The ultrasonic welding machine uses an ultrasonic generator to convert a current of 50 / 60Hz into electric energy of 15, 20, 30 or 40KHz. The converted high-frequency electric energy is again converted into mechanical motion of the same frequency by the transducer, and then the mechanical motion is transmitted to the welding joint through a group of horn devices that can change the amplitude. The welding joint transmits the received vibration energy to the joint part of the workpiece to be welded, and in this area, the vibration energy is converted into heat energy by friction, so as to melt the plastic.

2. Respective advantagesUltrasonic welding machine has the advantages of high speed, energy saving, high fusion strength, good conductivity, no spark, near cold machining, etc. It adopts electronic program control, high power, high efficiency, automatic control, easy operation, built-in electronic protection circuit, safe use, stable and reliable operation. The weldment has the characteristics of firm welding surface, high strength, subjective and environmental protection.Laser welding machine is a new welding method, which is mainly used for the welding of thin-walled materials and precision parts. It can realize spot welding, butt welding, lap welding, seal welding, etc. It has high width ratio, small welding width, small heat affected zone, small deformation, fast welding speed and smooth and beautiful welding. Treatment or simple treatment is required after welding, with high welding quality, no pores, accurate control, small focus, high positioning accuracy and easy automation.

3. Applicable products

Ultrasonic metal welder is suitable for welding thin products. It can be used for the welding of the same metal, and can also be used for single point and multi-point short strip welding of thin non-ferrous metals (such as copper, silver, aluminum and nickel). It can be widely used for welding of various shapes, such as the connector of fuse type lithium battery. Ultrasonic metal welding machine is used for similar welding of metals, and can carry out single point and multi-point short strip welding for fine and thin materials of copper, silver, aluminum and nickel non-ferrous metals. It can be widely used for welding of fuse links, lugs of lithium batteries and other shapes.

Ultrasonic welding machineUltrasonic welding machine can be divided into automatic welding machine, semi-automatic ultrasonic welding machine and manual welding machine according to the automation level. For modern enterprises, the higher the automation level, the more conducive to the enterprise assembly line production. Therefore, the use of automatic welding machine is a trend in the future.Laser welding machine

Laser welding machine, also known as laser welding machine and laser welding machine, is a machine for laser material processing. According to its working mode, it is divided into laser mold welding machine, automatic laser welding machine, laser spot welding machine and optical fiber transmission laser welding machine. Laser welding uses high-energy laser pulse to heat materials locally in small areas, The energy radiated by laser is diffused inside the material through heat transfer, and the material is melted to form a specific molten pool to achieve the purpose of welding.