17
Jun
What causes bad contact of wire crimping machine? For machines, poor contact has always been one of the main causes of failure, from small mobile phones, large computers, larger end-to-end sub-machines or aviation equipment. Since this problem is so important, we must pay attention to it. Let Fortune Sky wire crimping machine manufacturer analyze the bad contact problem of wire crimping machine today.
For a computer, the most common malfunction is the memory chip. For a wire crimping machine, the most common malfunction is the metal conductor inside the terminal. This part is the core part of the terminal. It transmits the voltage, current or signal from external wires or cables to the contacts corresponding to its matching connectors.
Because of its importance, the wire crimping machine is required to have stable and reliable contact and good conductivity. So what factors will cause poor contact of wire crimping machine contact structure?
In fact, this is a common factor, such as excessive processing size, unreasonable surface treatment technology such as heat treatment and plating, poor storage environment, poor and improper use and operation, etc., may make contact parts and coordination parts of automatic wire crimping machine poor contact.
Common fatal faults at terminals?
1. Poor contact
The metal conductor inside the terminal is the core part of the terminal. It transmits the voltage, current or signal from the external wire or cable to the contacts corresponding to its matching connector. Therefore, the contact parts must have excellent structure, stable and reliable contact retention and good conductivity. Due to the unreasonable structure design, wrong material selection, unstable die, excessive processing size, rough surface, unreasonable surface treatment process such as heat treatment and electroplating, improper assembly, poor storage and use environment and improper operation, all of these will cause poor contact at the contact and coordination parts of the contact parts.
2. Poor insulation
The function of insulator is to keep the contacts in the correct position, and to protect the contacts from the contacts and the shells from each other by insulating the conveyor. Therefore, insulators must have excellent electrical performance, conveyor protection mechanical performance and process forming performance. Especially with the wide use of high density and miniaturized terminals, the effective wall thickness of insulators becomes thinner and thinner. This puts forward more stringent requirements for insulation materials, precision of injection moulds and moulding technology. Due to the existence of metal redundancy, surface dust, flux and other contaminations on the surface or inside of insulators, the amalgamation of organic material precipitates and harmful gas adsorption film with surface water film to form ionic conductive channels, moisture absorption, long mold, aging of insulating materials and other reasons, will cause short circuit, leakage, breakdown, low insulation resistance and other bad insulation phenomena.
3. Poor fixation
Insulators not only play an insulating role, but also provide precise centering and protection for extended contacts. They also have the functions of installation, positioning and locking and fixing on equipment. Poor fixing, light impact on contact reliability, resulting in instantaneous power failure, the serious is product disintegration. Disintegration refers to the abnormal separation between plugs and sockets and between pins and sockets caused by unreliable structure due to material, design, process and other reasons, which will result in serious consequences of power transmission and signal control interruption of computer stripper in control system. Due to unreliable design, wrong material selection, improper selection of forming process, poor quality of heat treatment, die, assembly, welding and other processes, inadequate assembly will cause poor fixation.
In addition, due to coating peeling, corrosion, bruising, plastic shell flying edge, rupture, rough contact parts processing, deformation and other reasons caused by poor appearance, due to positioning and locking with poor size, poor consistency of processing quality, total separation force and other reasons caused by poor interchange, is also a common disease, frequently occurring. These kinds of faults can be found and eliminated in time in the process of inspection and use.
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17
Jun
The fully automatic double-ends wire crimping machine consists of three parts: the motion part, the control part and the execution part. wire crimping machine manufacturer said the wiring harness processing equipments on the market can be divided into three categories according to the accessories used at present.
1. Mechanical fully automatic double-ends wire crimping machine:
The main working principle is to drive the movement of the machine by belt and cam. The advantage is that the price is cheap, but the disadvantage is that the mechanical parts are easy to wear and age after using for a period of time, and the maintenance and debugging are troublesome. Short service life.
2. Stepping fully automatic double-ends wire crimping machine:
It mainly drives the movement of the machine through stepper motor.
The advantage is that the price is relatively low and the appearance is close to the servo motor. Compared with the mechanical design, it is more exquisite. The disadvantage is that the domestic ordinary step motor is easy to lose step and affects the precision of the product. The service life is short. The price difference between domestic stepper motor and imported famous brand servo motor is about 10 times. At present, more small companies use stepper motors as servo motors, declare that they are all servo products, or use some unknown servo plus some cam mechanical parts to deceive consumers.
3. Full-servo fully automatic double-ends wire crimping machine:
mainly through the PLC servo drive signal to control the movement of the servo motor, the advantages are high accuracy, long service life, high cost-effective, the disadvantage is that the price is more expensive, the use of motion modules together, greatly ensuring the accuracy and service life of the product.
The main functions of the reducer are as follows:
1. The reducer can reduce the moment of inertia. Generally, the square of speed ratio is reduced. It can control start-stop and speed change in time.
2. Increasing the torque through the reducer is equivalent to increasing the input power, which can reduce the power required by the input motor.
3. Reducer has the function of protecting motor in transmission. Reducer bears large torque in operation.fully enclosed gear reducer motor transmits only the value of overload divided by deceleration ratio when overload occurs. If it is directly borne by motor, it may cause motor damage.
4. When the motor is directly connected to the load at low speed, in order to meet the output torque current, the motor will increase a lot, which will inevitably have higher requirements for the heat dissipation and insulation of the motor. It is also undesirable from the point of view of energy saving. If the reducer is used, the impact of these problems can be reduced.
The role of the motor module:
1. Flexible movement without gap
2. Easy to obtain high walking accuracy
3. High positioning accuracy
4. High rigidity in all directions
5. High allowable load
6. Can maintain high accuracy for a long time
7. Excellent speed.
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06
May
Automatic wire terminal crimping machine is an indispensable equipment for processing all kinds of wires and cables.It is a high-end technical product of multi-function machine for cutting aggregates and feeding materials,stripping,pressing together,humanization and intellectualization. There is hardly any manual work in the operation process,but there... read more
22
Jun
The improved mute wire crimping machine is based on the server belt, the server does not transmit information to the motor, the motor is static. His operating principle is different from that above, which has the advantages of low noise and power saving. It just gives the server a message, which is then passed to the motor and acts as an action.
Mute wire crimping machine is improved with the conventional wire crimping machine. There is an internal wrapped a circuit breaker with a clutch . Every crimping produces a standard “O” , which is the most common. Mute wire crimping machine is usually used to connect wire more conveniently. Mute wire crimping machine referred to a kind of machine which is mainly used for wire processing. Without welding, two wires can be connected stably. It can crimp metal terminal to the wire end, and then make conduction. When disassembling, just pull it out. It’s convenient and fast.
Mute wire crimping machines are applied to various electrical appliances in our life, electronic products including automobiles and aerospace, wiring harness is an important part of product success, every product research and development should consider the application of wiring harness in products; as a wiring harness processing equipment, computer strippers and mute wire crimping machines are particularly important in the production of wiring harness, want to understand the processing technology of wiring harness. Be sure to understand the performance of computerized wire stripping machines and... read more
07
Mar
The emergence of fully automatic wire stripper terminator machine has greatly promoted the development of wiring harness processing industry. The use of fully automatic wire crimping machine is not only more efficient, but also better quality of stripped wires. In addition, there are many unexpected advantages in the... read more
18
Jun
Generally, there are many reasons for overheating of bearings in automatic wire crimping machines. Among them, there are several common reasons. The wire crimping machine manufacturer introduce several reasons as below:
1. Friction between bearing cover and shaft.
Because the axis of the axle and the axis of the mechanical equipment driven by the terminal machine are not on the same line, or because of the inaccurate processing, the inner circle of the bearing cap is eccentric, so that the bearing cap and the axle are friction with each other. Light bearings heat, serious smoke, large high-speed motors will soon rub red. At this time, the machine should be stopped immediately, otherwise the automatic terminal machine will be burnt down.
2. If the belt is too tight or the axle center of the fully automatic wire crimping machine is not in the same straight line as that of the driven machine, that is to say, the bearing load will increase and the bearing will heat up.
3. The unbalance of inner and outer rings of steel ball bearings is one of the causes of heating.
The unbalance of inner and outer rings of terminal machine may be caused by machining. Because the seat and cover of automatic terminal machine are processed separately, sometimes the bearing holes on the two end caps are not coaxial (that is, the center line is not on one line). In addition, poor assembly, uneven tightness of the screw on the end cover, dust and dirt on the stop, etc., may also make the inner and outer rings unbalanced. If the inner and outer rings of the bearing are unbalanced, the steel beads and the inner and outer rings will be scraped, and the friction will increase and heat up. If there is no other reason, wipe the nose clean and reinstall, screw tighten one by one in diagonal order. A small amount of errors in processing can be improved by gradual automatic adjustment.
4. Too much or too little lubricating oil is also the cause of heating.
Bearing is used for a long time, the internal lubricant gradually reduces, resulting in insufficient lubrication, increased friction loss, so that the bearing heating, long-term oil shortage operation will cause bearing damage. Too much oil or too thick oil can also cause bearing overheating. In addition, if the lubricating oil is mixed with hard impurities, the bearings are not cleaned, or the bearings are cleaned with dirty oil, so that there are sand particles and iron chips in the bearings, the mechanical friction of the bearings will be increased and the bearings will be heated, and the bearings will be easily damaged due to the role of impurities.
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09
Apr
What are the common fatal faults of the lug/terminal/ferrule?
1, poor insulation
The function of the insulator is to keep the contact part in the correct position, and make the contact between the contact part and the complex part. Therefore, the insulation must have excellent electrical... read more
04
Apr
Failure 1: Stripping front opening length varies.
Reason a: Feeding wire wheel is too tight or relaxed;
Solution: use wheel trimming bar to adjust two wheels gap so as not to press the wire firmly or too relaxed to slip the wire.
Reason b: cutting and stripping... read more
07
Apr
Full Automatic Terminal Crimping Machine Operation Procedure
3.1 Automatic Terminal machine examation before switch on:
3.1.1 check each switch is unwounded.
3.1.2 Check the electrical installations are normal (power supply: 220V, Pressure :3.5-6.5 Pure)
3.1.3 Inject lubricating oil to sliding parts, clean the machine and make the maintenance... read more
12
Jun
All kinds of electrical appliances used in our life include cars and aerospace, wiring harness is the main part of the success of commodities, and different wiring harness will be used in the development of each commodity. As the wiring harness processing equipment, computerized wire... read more
