2020年1月20日星期一

Application Of Spring Types

Springs are widely used in our lives and are everywhere. Wherever we can see and cannot see, there are shadows of springs. For example, we use springs in ballpoint pens and automatic pens; springs are also used in door handles and roller shutter doors; springs are also used in mobile phones and computers we use. With the development of industrial technology, the application fields of springs are becoming more and more extensive. Then, different types of springs are needed for different products. The classification of springs is roughly as follows:

According to the nature of the force, springs can be divided into compression springstensile springs, torsion springs and flexural springs. According to their shape, they can be divided into disc springs, ring springs, leaf springs, coil springs, truncated cone scroll springs and torsion bar springs. According to the production process, it can be divided into cold coil spring and hot coil spring. The following are common spring types:

1. COMPRESSION SPRING

Compression spring is a helical spring that withstands axial pressure. Its material cross section is mostly circular, and it is also rolled with rectangular and multi-strand steel reeds. The spring is generally of equal pitch. The shape of the compression spring is: cylindrical Shape, conical shape, middle convex shape, middle concave shape and a small number of non-circular shapes, there will be a certain gap between the coils of the compression spring, and when the external load is applied, the spring shrinks and deforms, and stores deformation energy.
To produce high-quality compression springs, springs need accurate intercept control and stable, high-speed wire feed speeds. Luoyang Xian Heng Spring Machinery focuses on the research and development and production of spring machines, focusing on the problems of spring accuracy and wire feeding stability, and has a good reputation in the Chinese spring machine market. Luoyang Xian Heng Spring Machinery Compression Spring Machine can produce springs with a wire diameter ranging from 1-30mm, which is easy to operate and flexible to adjust. It is the best choice for spring production.

2. TENSION SPRING

Tension springs are helical springs that support axial tension. Tension springs are generally made of circular cross-section materials. When no load is applied, the coils of the tension spring are usually tight and without gaps. It uses the rebound force (tension) after stretching to control the movement of the parts, store energy, and measure the force. It is widely used in machines and meters. The hook forms include side hook tension springs, long hook tension springs, British hook tension springs, German hook tension springs, semicircular hook tension springs, duckbill hook tension springs, etc. The materials are stainless steel, piano steel, high carbon Steel, phosphor copper, beryllium copper, oil tempered alloy spring steel, etc.
Tension springs are used in a wide range of applications, garage doors and other well-known extension springs are all used. The tension spring is mainly made by the eight-claw machine, and the compression spring machine can also make the simpler tension spring. The eight-claw machine has a wire diameter range of 0.02-14mm when making tension springs, but the harder the spring material is, the stronger the abrasion of the eight-claw machine is.

3.TORSION SPRING

The torsion spring uses the principle of the lever to make it have great mechanical energy by twisting or rotating the elastic material with soft and tough material. It is a spring that withstands torsional deformation. Its working part is also surrounded by coils or tightly separated. The end structure of the torsion spring is a torsion arm processed into various shapes, from single to double torsion, and even the deformation of various torsion bars, which can be shaped according to design. Torsion springs are often used in balancing mechanisms in machinery, and are widely used in industrial production of automobiles, machine tools, and electrical appliances.
The torsion spring has a small volume and a large torsion, and can be used as a shock absorbing tool for transportation tools. The torsion spring can be made by the compression spring machine or the eight-claw machine. Comparatively speaking, compression spring machines can produce torsion springs with larger wire diameters, while eight-claw machines can produce more types of torsion springs. Most torsion springs on the market are produced by eight-claw machines.

4. LINEAR SPRING

The thickness and density of linear springs are unchanged, and the elastic coefficient is a fixed value. This design of the spring can make the vehicle obtain a more stable and linear dynamic response, which helps the driver to better control the vehicle. It is mostly used for performance-oriented modified cars and competitive vehicles. Of course, the disadvantage is that comfort is affected.

5.LEAF SPRING

The leaf spring leaf spring is an oblong spring steel with a rectangular cross section. In the most common configuration, the center of the arc provides the position of the shaft, while a ring formed at either end is attached to the vehicle chassis. For very heavy vehicles, a leaf spring can be made from multiple leaves stacked on top of each other, usually with gradually shorter leaves.


Our company is dedicated to the sales and communication of springs and spring machines. If you have any intention, please contact us.
Name:Luoyang Xian Heng Spring Machinery Co., Ltd.
Email: marketing@springcoiling.com
Tel: 0086-379-62265677
Fax: 0086-379-67878852
Whatsapp: 0086-13526986923
Wechat: 0086-13526986923

2020年1月13日星期一

Maintenance regulations for CNC electrical systems

1. Strictly abide by the operating regulations and routine maintenance system

2. Open the doors of CNC cabinets and strong electrical cabinets as little as possible Oil mist and dust can easily cause the insulation resistance of components to decrease, and even cause damage to circuit boards or electrical components
(1) In the summer, in order to make the CNC system work overtime for a long time, it is necessary to open the door of the CNC cabinet to dissipate heat, which will eventually lead to the accelerated damage of the CNC system.
(2) The correct method is to reduce the external ambient temperature of the CNC system.
Note: Unless necessary adjustments and repairs are performed, the doors of CNC cabinets and high-voltage cabinets are not allowed to be opened at will.
(3) Some circuit boards and connectors that have been contaminated by external dust and oil mist can be sprayed with special electronic cleaners.
Note: The naturally dry liquid spray table forms an insulating layer on the non-contact surface to make it well insulated.

3. Regularly clean the cooling and ventilation system of the CNC cabinet
(1) Check whether the fan on the CNC cabinet works normally every day.
(2) Check the air duct filter for blockage every six months or quarter.
Note: The temperature in the CNC cabinet is too high (generally not allowed to exceed 55 ° C), causing an overheating alarm or the CNC system: the operation is unreliable.
(3) Cleaning method
1) Unscrew and remove the air filter;
2) While gently vibrating the filter, use compressed air to blow away the dust in the air filter from the inside out;
3) When the filter is too dirty, it can be washed with a neutral detergent (detergent and water formula is 5/95) (but not rubbed), and then placed in a cool place to dry.

4. Pay attention to the regular maintenance of the input / output devices of the CNC system (such as magnetic heads)

5. Frequently monitor the grid voltage of the CNC system (85% ~ 110%) check frequently

6. Periodically replace the battery for storage (lithium battery, nickel-chromium battery rechargeable)
(1) Regularly check the battery voltage and replace it once a year (in general, even if it has not expired, it should be replaced once a year to ensure that the system works properly).
(2) The battery replacement should be performed under the power supply of the CNC system, so as not to lose the parameters in the RAM.

7. Maintenance of CNC system when not in use for a long time
(1) Power on the CNC system often:
a. Check whether the battery voltage is too low and whether there is an alarm; if so, replace the backup battery in time.
b. Dry running and dehumidification to prevent moisture or short circuit of electrical components or printed boards: power on more than twice a week; power on every day in the rainy season
(2) For DC motors, take out the brushes to prevent corrosion of the commutator ensure commutation performance.

8. Maintenance of spare circuit boards
The spare circuit board is regularly installed on the CNC to be powered on to avoid damage.

9.Maintenance and maintenance of common relay and contactor control systems
Take measures to prevent strong electromagnetic interference from contactors and relays in the strong electrical cabinet.
The AC motor starts and stops frequently. The electromagnetic induction phenomenon causes the CNC system control circuit to generate noise such as spikes or surges, which interferes with the system's operation. For example, the RC network is connected in parallel at both ends of the AC contactor or the three-phase input end of the motor.
Prevent oxidation and poor contact of contactors and relay contacts.

10. Make preparations before repairs
Spring machine failure occurs Emergency stop, protect the site Prepare for maintenance (technical preparation \ tool preparation \ spare parts preparation)
Our company is dedicated to the sales and communication of springs and spring machines. If you have any intention, please contact us.
Name:Luoyang Xian Heng Spring Machinery Co., Ltd.
Email: marketing@springcoiling.com
Tel: 0086-379-62265677
Fax: 0086-379-67878852
Whatsapp: 0086-1833 8852 671
Wechat: 0086-1833 8852 671

2020年1月7日星期二

Simple Classification of Spring Materials

Spring materials can be roughly divided into the following categories:

Spring materials can be divided into two categories, metal and non-metal according to their materials. Metal elastic materials are widely used in mechanical engineering. Metal elastic materials are divided into several different types according to the main metal element composition of the material. Among them, spring steel is the spring material with the largest amount of use and the widest range of use. In spring steel, carbon spring steel and alloy spring steel both use iron as the main component. Alloy spring steel also appropriately adds alloy elements such as manganese, silicon, chromium, vanadium, tungsten, molybdenum, niobium, and boron to obtain Desired performance.





1.Carbon spring steel
Carbon spring steel and alloy spring steel are currently the most widely used spring materials, and both account for more than 90% of the amount of spring material used.
2.Alloy spring steel
According to the different alloy elements contained in steel, alloy spring steel can be divided into four series.
(1) Silicon-manganese alloy spring steel
The hardenability of silicon-manganese alloy spring steel is higher than that of carbon steel, and silicon can improve the strength and tempering stability of spring steel, so that it can be tempered at higher temperatures to obtain better comprehensive mechanical properties.
(2) Chrome vanadium alloy spring steel
Chromium vanadium alloy spring steel is a commonly used high quality spring steel, the typical grade is 50CrVA.
(3) Cr-Mn alloy spring steel
Chromium-manganese steel is not widely used in China. It is also an excellent alloy spring steel.
(4) Silicon chromium spring steel
In addition to 55Cr Si, the grades of silicon chromium spring steel and silicon chromium spring steel with vanadium are 65Si2CrA and 60Si2CrVA. Due to the action of chromium and vanadium in the steel, the steel has a low overheating sensitivity, is not prone to decarburization and graphitization, and has relatively stable mechanical properties at high temperatures and good hardenability.

3. Quenching and tempering spring steel wire

Our company is dedicated to the sales and communication of springs and spring machines. If you have any intention, please contact us.
Name:Luoyang Xian Heng Spring Machinery Co., Ltd.
Email: marketing@springcoiling.com
Tel: 0086-379-62265677
Fax: 0086-379-67878852
Whatsapp: 0086-1833 8852 671
Wechat: 0086-13526986923

2020年1月6日星期一

How Beautiful are They!!!



Springs are very common in our lives, but the more common things, the easier it is to be ignored. Therefore, these beautiful springs can only be appreciated by a small number of people. What do you think?

2020年1月4日星期六

MOLD SPRING, NOT AS HARD AS YOU THINK

With the development of die industry in recent years, the number and varieties of die spring especially steel wire die spring with profiled section, are increasing. The spring of special-shaped section mould has the characteristics of large rigidity, long life and small volume. But its design theory development is relatively slow. At present, in addition to the square section of the spring design method is relatively mature, the other section of the spring design method, basically according to the specific section through the test, find out the correction coefficient to obtain the specific section of the empirical design formula, is to this kind of spring characteristics and design problems to make a brief introduction.


This is a question of great concern to the user of the spring and must be clarified. A square cross section is compared with a circular cross section helical spring.

In the same space, the bearing capacity of square section steel spring is 43-48% higher than that of circular section spring. Obviously, the rectangular spring is more than 50%.

From the analysis of the main reason of spring failure, under the same condition, the service life of steel spring with special section is increased by 13-14% than that of steel spring with circular section.

Profiled section steel wire spring can produce large deformation.

The weight of profiled wire spring is large.

Linearity is better than the circular section spring, that is, stiffness tends to be constant. In particular, a spring with a long side wound parallel to the axis.

The application scope is restricted: from the analysis, it can be seen that if the special-shaped section material spring cannot fully use its advantages, it will not produce economic benefits.


(1) the design load cannot be achieved with circular section materials.

(2) replace circular section compound spring.

(3) when the spring of circular material cannot reach the required amount of deformation.

(4) where the spring installation space is small.

(5) where strict spring characteristics are required.

Second, the mold spring design principle

1. Spring material allowable stress (tau) choice, should be in place to ensure that the spring fatigue life is given priority to consider. The dynamic life of springs is generally divided into three categories:

Ⅰ class: carry alternating load number is 106;

Ⅱ classes: carry alternating load number is 103-105;

Ⅲ class: carry alternating load number less than 103;

2. Material ratio (a/b) should not be too large, and the spring winding should not be too small.

3. Design of rectangular profiled spring, be sure to derivation and draw in different ratio, different kind than the (tau) and the shear stress and deformation correction coefficient correction factor (beta) curve or formula.

4. According to the given and restricted conditions, the design method with simple calculation and reasonable parameter selection should be selected.


Our company is dedicated to the sales and communication of springs and spring machines. If you have any intention, please contact us.
Name:Luoyang Xian Heng Spring Machinery Co., Ltd.
Email: marketing@springcoiling.com
Tel: 0086-13526986923
Fax: 0086-379-67878852
Whatsapp: 0086-1833 8852 671
Wechat: 0086-1833 8852 671

Main Factors Affecting Spring Fatigue Strength

1. Yield strength     There is a certain relationship between the material's yield strength and fatigue limit. Generally speaking, t...