2023-06-19

Hydrostatic guideway of CNC machining lathe

The static pressure slide rail (TTW guide) of the CNC machining lathe transfers the oil with a certain pressure through the throttle to the oil cavity between the sliding surfaces of the slide rail (TTW guide) to form a pressure oil film to float the moving parts , Make the sliding rail (TTW guide) surface in a pure liquid friction state.

CNC machining General CNC machining usually refers to computer digital control precision machining, CNC machining lathe, CNC machining milling machine, CNC machining c17200 beryllium copper and milling machine, etc. The feed route of finishing is basically carried out along the part contour sequence. Therefore, the focus of determining the feed route is to determine the feed route of rough machining and idle stroke. In the numerical control processing, the control system issues instructions to make the tool perform various motions that meet the requirements, and the shape and size of the workpiece are expressed in the form of numbers and letters, and the processing required by the processing technology. It generally refers to the process of processing parts on CNC machine tools. In order to improve the degree of production automation, shorten the programming time and reduce the cost of CNC machining, a series of advanced CNC machining technologies have been developed and used in the aerospace industry.

According to different load requirements, the static pressure guide rails of CNC machining lathes are divided into two types: open type and closed type.

The open hydrostatic guide rail can only bear the load in the vertical direction, and the ability to withstand the subversion moment is poor; the closed hydrostatic guide rail has the ability to withstand all aspects of the load and the subversion moment.

The sliding rail (TTW guide) of the hydrostatic slide rail (TTW guide) is in a pure liquid friction state, so there is no wear (a basic type of component failure), precision (precision) retention, and life ( Long lifetime), and the friction coefficient of the slide rail (TTW guide) is small (typically 0.0005 to 0.001), and the mechanical efficiency (efficiency) is high, which can maintain the guiding accuracy (precision) of the slide rail (TTW guide) for a long time.

CNC machining General CNC machining usually refers to computer digital control precision machining, CNC machining lathe, CNC machining c14500 copper machine, CNC machining boring and milling machine, etc. The feed route of finishing is basically carried out along the part contour sequence. Therefore, the focus of determining the feed route is to determine the feed route of rough machining and idle stroke. The pressure oil film has large bearing capacity, good rigidity, and good vibration absorption. The sliding rail (TTW guide) runs smoothly and is not easy to crawl at low speeds. However, the structure of the static pressure guide rail is relatively complicated, and an oil supply system with a good filtering effect is required, and the manufacturing cost is also high. This guide rail is mostly used in heavy-duty CNC machining machine tools.

2023-06-19

Elimination of Gear Backlash in CNC Machining Feed System

The transmission gear in the feed system of the CNC machining machine tool must eliminate the transmission gap between the meshing gears as much as possible, otherwise the motion will lag behind the command signal after each reversal of the feed system, which will affect the machining accuracy (accuracy) ). There are the following two common methods for CNC machining machine tools to eliminate the transmission gear gap.

Rigidity adjustment method

The rigid adjustment method is an adjustment method that cannot be automatically compensated for the tooth side clearance after adjustment. Therefore, the pitch tolerance and tooth thickness of the gear must be strictly controlled, otherwise the flexibility of the transmission will be affected. This adjustment method has a relatively simple structure and a better transmission rigidity.

(1) Eccentric shaft adjustment method

As shown in Figure 610, the gear 1 is mounted on the eccentric sleeve 2. Adjusting the eccentric sleeve 2 can change the center distance between the gear 1 and the gear 3, thereby eliminating the gap. In the numerical control processing, the control system issues instructions to make the tool perform various motions that meet the requirements, and the shape and size of the workpiece are expressed in the form of numbers and letters, and the processing required by the processing technology. It generally refers to the process of processing parts on CNC machine tools. In order to improve the degree of production automation, shorten the programming time and reduce the cost of CNC machining, a series of advanced CNC machining c17500 beryllium copper technologies have been developed and used in the aerospace industry.

(2) Axial gasket adjustment method

For a pair of meshing cylindrical gears, if their pitch circle diameter is made into a smaller taper along the gear axial direction, changing the thickness of the gasket 3 can change the axial relative position of the gear 2 and the gear 1, thereby eliminating the tooth flanks. gap. In the numerical control processing, the control system issues instructions to make the tool perform various motions that meet the requirements, and the shape and size of the workpiece are expressed in the form of numbers and letters, and the processing required by the processing technology. It generally refers to the process of processing parts on CNC machine tools. In order to improve the degree of production automation, shorten the programming time and reduce the cost of CNC machining c11000 copper, a series of advanced CNC machining technologies have been developed and used in the aerospace industry.

Add a shim 2 between the two thin helical gears 3 and 4, change the thickness t of the shim, and the helix of the thin gears 3 and 4 will be misaligned, so that the thin gears 3 and 4 are respectively aligned with the teeth of the wide helical gear 1. The left and right sides of the groove are tightly attached to each other, thereby eliminating the tooth side clearance.

Flexible adjustment method

The flexible adjustment method is an adjustment method in which the tooth flank gap can still be automatically compensated after adjustment. This method generally adopts adjusting the pressure of the pressure spring (Spring) to eliminate the tooth side clearance, and in the case of changes in the tooth thickness and circumferential section of the gear, it can also maintain a gapless meshing, but the structure of this adjustment method is relatively more. Complex, large axial size, low transmission rigidity, and poor transmission stability.

(1) Axial compression spring adjustment method

The two thin helical gears 1 and 2 are sleeved on the shaft 6 with the key 4, and the nut 5 is used to adjust the axial pressure of the pressure spring 3. The left and right tooth surfaces of the groove are tightly attached to each other, thereby eliminating the tooth side clearance. The spring force needs to be adjusted properly, too loose can not eliminate the gap, too tight will accelerate the wear of the gear (a basic type of component failure).

(2) Circumferential spring adjustment method

Two thin gears 1 and 2 with the same number of teeth mesh with another wide gear, and the gear 1 is idler on the gear 2 and can rotate relatively. CNC machining General CNC machining c17300 beryllium copper usually refers to computer digital control precision machining, CNC machining lathe, CNC machining milling machine, CNC machining boring and milling machine, etc. The feed route of finishing is basically carried out along the part contour sequence. Therefore, the focus of determining the feed route is to determine the feed route of rough machining and idle stroke. The end face of each gear is evenly equipped with four threaded lugs 3 and 8 respectively. There are four through holes on the end face of the gear 1 through which the lug 8 can pass. The spring 4 is hooked on the adjusting screw 7 and 9 lug 3 respectively. . Turning the nuts 5 and 6 can adjust the tension of the spring 4. The tension of the spring displaces the sheet gears 1 and 2 with each other, and respectively adhere to the left and right tooth surfaces of the wide gear grooves to eliminate the tooth side clearance.

2023-06-19

Classification of CNC Machining Occupation Levels

Blue-collar layer:

That is, CNC machining operation technicians, proficient in machining and CNC machining process knowledge, proficient in the operation and manual programming of CNC machine tools (attributes: automated machine tools), understand automatic programming and simple maintenance of CNC machine tools (attributes: automated machine tools), such There is a large market demand for personnel, and they are suitable for operating workers of CNC machine tools (attributes: automated machine tools) in the workshop, but due to their single knowledge, their wages will not be much higher.

Gray collar layer:

One, CNC machining programmer:

Master the knowledge of 5 Axis CNC machining Aluminum technology and the operation of CNC machine tools (attributes: automated machine tools), be familiar with the design and manufacturing expertise of complex molds (title: mother of industry), and be proficient in 3D CAD/CAM software, such as UG, GOOGLE PRO/E, etc. ; Familiar with CNC automatic programming and manual programming technology. CNC machining is a process method for parts processing on CNC machine tools. The process regulations of CNC machine tool processing and traditional machine tool processing are generally the same, but significant changes have also taken place. A machining method that uses digital information to control the displacement of parts and tools. It is an effective way to solve the problems of variable parts, small batches, complex shapes, and high precision, and to achieve high-efficiency and automated processing. In the numerical control processing, the control system issues instructions to make the tool perform various motions that meet the requirements, and the shape and size of the workpiece are expressed in the form of numbers and letters, and the processing required by the processing technology. It generally refers to the process of processing parts on CNC machine tools. In order to improve the degree of production automation, shorten the programming time and reduce the cost of CNC machining, a series of advanced CNC machining technologies have been developed and used in the aerospace industry. This kind of personnel is in high demand, especially in the mold (title: mother of industry) industry is very popular, and the treatment is also very high.

Second, the maintenance and repair personnel of CNC machine tools (attribute: automated machine tools):

Master the mechanical structure and electromechanical joint adjustment of CNC machine tools, master the operation and programming of CNC machine tools, and be familiar with the characteristics of various CNC systems, software and hardware structures, PLC and parameter settings. Proficient in the mechanical and electrical debugging and maintenance of CNC machine tools. The demand for such personnel is relatively small, but it is very difficult to train such personnel and requires a large amount of practical experience (experience) accumulation, which is currently very scarce, and their remuneration is also high.

Gold collar layer:

A generalist in CNC machining, possesses and is proficient in the comprehensive knowledge required by CNC machining operators, CNC programmers, and CNC maintenance and repair personnel, and has accumulated a lot of practical experience in actual work, and has a wide range of knowledge. CNC machining CNC is also called computer gong, CNCCH or numerical control machine tool. It is actually a kind of name in Hong Kong, which greatly reduces the number of tooling. CNC machining beryllium copperwith complex shapes does not require complex tooling. CNC machining is a new type of processing technology, the main work It is to compile the processing program, that is, to convert the original manual work to computer programming. If you want to change the shape and size of the part, you only need to modify the part processing program, which is suitable for new product development and modification. Proficient in the mechanical structure design of CNC machine tools (attribute: automated machine tool) and electrical design of CNC system, master the electromechanical joint debugging of CNC machine tools (attribute: automated machine tool). Can complete the selection of CNC system, the design, installation, debugging and maintenance of the electrical system of CNC machine tools. Can independently complete the CNC transformation of machine tools. They are the sought-after talents of enterprises (especially private enterprises), and their remuneration is very high.

2022-09-22

Several factors affecting the embrittlement of speed-regulated cooling fans

The embrittlement of the speed-adjustable cooling fan means that it is easy to break. If the equipment frame or fan blade is broken, the fan is basically scrapped. It is prone to accidents when it is broken during work, and it has to be taken seriously. The embrittlement of the speed-regulated DC cooling fan is caused by the following factors: long-term operating temperature, fan speed ratio, power switching frequency, rotor dynamic balance of the fan motor rotor, fan structure direction and dust or dirt in the natural environment.

The brittleness of the speed-adjustable cooling fan means that it is easy to break. If the equipment frame or fan blade is broken, the fan is basically scrapped. It is prone to accidents when it is broken at work, and it has to be taken seriously. The embrittlement of the speed-regulated cooling fan is caused by the following factors: long-term operating temperature, fan speed ratio, power switching frequency, rotor dynamic balance of the fan motor rotor, fan structure direction and dust or dirt in the natural environment.

Working temperature: The temperature of the fan office environment will endanger the evaporation and viscosity of the grease, thus endangering the service life of the power cooling fan.

Fan speed ratio: The AC coling fan speed ratio is inversely proportional to the service life. The higher the speed ratio, the higher the temperature caused by the friction of the grease liquid, which will accelerate the evaporation of the grease and reduce the service life of the bearing.

Power switching frequency: When the oil bearing starts, no oil wedge is produced, and the shaft core and bearing are still in contact with metal materials, which will cause slight damage. Therefore, frequent power switching can also endanger bearing life.

The rotor dynamic balance of the fan motor rotor: the better the rotor dynamic balance of the fan Blower motor rotor, the smaller the centripetal force caused by the same speed ratio, the less damage to the bearing, and then the service life of the bearing will increase.

Fan structure direction: Due to the difference in the fan structure field, the influence of force on the bearing will also be different. In the basic theory, the force of the motor rotor on the bearing has minimal ground stress when the direction of the deceived gravity is parallel to the bearing.

Dust or dirt from the outside: After entering the bearing, the dust in the air will block the air intake system of the bearing, destroy the original dynamic pressure oil film and lubrication of the oil bearing, and cause failure. If the external dirt is chemical fibers or insects, it will also hinder the rotation of the centrifugal impeller.

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2022-09-22

What should you pay attention to when buying LED high bay lights?

LED high bay lights are LED lamps used in many factories and mines in production areas. Generally, lamps and lanterns will be evenly arranged above or on the side walls of the work site to illuminate the entire work surface. Therefore, it is necessary to use higher power incandescent lamps, tungsten halogen lamps, high intensity gas discharge lamps or a higher number of fluorescent lamps. Most of the high bay lights also belong to this category. General lighting has higher requirements on the distribution of light, and two types of light distribution, direct lighting type and semi-direct lighting type, are widely used.

Of course, there are many things to pay attention to when purchasing LED lights. Today, Zhongshan Xinpengda Lighting Factory will explain to you.

First, look at the heat dissipation structure

Generally, the materials used for lamps are aluminum profiles, metal sheets and copper columns. When we turn on the lamps, we can observe whether there is a temperature rise. It is impossible to have no temperature. It means that heat cannot be dissipated, but the temperature rise should not be too high. Degree is appropriate.

Second, look at the actual needs

Different occasions have different requirements for lamps. Industries such as coal, petroleum, chemical and other industries need to consider not only whether the lighting needs can meet the requirements, but also the factors of dustproof and waterproof lamps, and even the explosion-proof requirements. Such enterprises need to consider whether the product meets the requirements of national quality standards, whether it has passed the explosion-proof certification and other factors when choosing lamps and lanterns.

Look at the light source part

The light source part mainly depends on whether genuine chips are used, such as Purui, Epistar, Cree, etc. At the same time, the light source part and the power supply part should have good waterproof function.

Fourth, look at power, illumination and color temperature

This is particularly professional. When purchasing LED high bay lights, the power should be selected according to the actual lighting area. High power will cause waste of electricity resources, and low power will not meet the lighting needs. At the same time, conditions such as illumination and color temperature are also very important. The production line requires high resolution, such as the textile industry, which requires high resolution lamps. It is recommended to clearly inform the shopping guide of your actual needs when purchasing.

Of course, the most important thing to choose LED lights is to choose a guaranteed business. Zhongshan Xinpengda Lighting Factory was established in 2014. It is located in the economically developed Pearl River Delta Forte, an ancient town in Zhongshan known as the Lighting Capital of China. The main products are various power LED wall washers, flood lights, flood lights, digital tubes, point light sources, street lamp heads, tunnel lights, high bay lights, underwater lights, buried lights, etc.

our services include: led-high-bay-light, led-explosion-proof-lights, led-spot-light, led-street-light, led-tunnel-light, led-flood-light, led-wall-light, led-underground-light, led-garden-light.

2022-09-22

What are explosion-proof lamps and how to choose explosion-proof lamps?

What are explosion-proof lamps?

As the name suggests, this type of lamp not only has a certain lighting effect, but also has a certain explosion-proof function. It is widely used in inflammable and explosive places such as construction sites, chemicals, gas stations, oil fields, mines, various military sites, transfer stations, etc. Explosion-proof lamps are special industrial lamps, which can ensure the safety of users on the premise of ensuring the quality of lighting. The explosion-proof lamp shell has strong corrosion resistance and good sealing performance, and is a new type of LED energy-saving lamp source product. The shell of the explosion-proof lamp is made of lightweight aluminum alloy die-casting, and the surface is treated with high-voltage electrostatic spraying, which can be used as a lighting emergency lamp.

How to choose explosion-proof lamps

Color temperature selection

When we buy, we should choose the appropriate color temperature according to its use place. The color temperature mentioned here actually refers to the color of its light. Generally speaking, the color temperature of explosion-proof lamps needs to be selected according to the season and environment. Its color temperature scale is 2700-6500K. If the value is smaller, it means that it is more inclined to yellow light, and vice versa, it is inclined to blue and white light. Yellow light is usually used in living rooms, bedrooms, dining rooms or in low-light situations, and can play a role in creating a warm and comfortable feeling. The white light is brighter and clearer, which is suitable for use in summer, study, kitchen and other places.

Color rendering options

It actually refers to the original color of the object under the illumination of the lamp. Its value is between 0 and 100. Now the color rendering specification of the explosion-proof LED bulbs on the market is greater than 75. For the sake of safety, it is recommended to We still choose more than 80, which can help reflect the authenticity of the color.

Luminous flux selection

Even if the same lamp is used in different environments, the lighting effects presented by them are different. In order to ensure the safety of our use, it is recommended that you should pay attention to its luminous flux when purchasing explosion-proof lights. The luminous flux refers to its brightness. If the place of use is large and the light is dark, we need to install a few more explosion-proof lights; if the place of use is small and the light is sufficient, 1-2 explosion-proof lights are needed.

What are explosion-proof lamps? As a special product, it is good to use explosion-proof lamps, but its appearance design is not so exquisite, which may affect the beauty of interior decoration. How to choose explosion-proof lamps? If you want to choose explosion-proof lamps, it is better to decide according to its practicality and matching style.

our services include: led-high-bay-light, led-explosion-proof-lights, led-spot-light, led-street-light, led-tunnel-light, led-flood-light, led-wall-light, led-underground-light, led-garden-light.

2022-09-22

What are explosion-proof lamps and how to choose explosion-proof lamps?

What are explosion-proof lamps?

How to choose explosion-proof lamps

Color temperature selection

Color rendering options

Luminous flux selection

our services include: led-high-bay-light, led-explosion-proof-lights, led-spot-light, led-street-light, led-tunnel-light, led-flood-light, led-wall-light, led-underground-light, led-garden-light.