The cushioning effect of the cylinder buffer sleeve is crucial to the smooth operation of the cylinder and the service life of the equipment. By adjusting its parameters reasonably, the cushioning effect can be effectively changed.
First, the hardness of the cylinder buffer sleeve is a key parameter. The hardness of the cylinder buffer sleeve is mainly determined by the material it is made of. For example, materials such as rubber have different hardness grades. A harder cylinder buffer sleeve has a smaller degree of deformation when impacted by the piston and can provide a larger reaction force. It is suitable for cylinders with high-speed movement or heavy loads. For example, in automated stamping equipment, due to the fast movement speed and large impact force of the piston, the use of a cylinder buffer sleeve with a higher hardness can effectively consume energy in a short time, stop the piston quickly, and reduce rebound. On the contrary, a softer cylinder buffer sleeve can produce a softer cushion when the piston moves. It is suitable for cylinders with high requirements for cushioning accuracy and slow movement. For example, in the assembly line of precision electronic equipment, a soft cylinder buffer sleeve can avoid damage to precision parts due to excessive cushioning force.
Secondly, the thickness of the cylinder buffer sleeve also has a significant impact on the cushioning effect. Increasing the thickness of the cylinder buffer sleeve means that when the piston squeezes the cylinder buffer sleeve, the buffer material has more space to deform, thereby extending the buffer time and making the buffer process smoother. For example, in some large pneumatic equipment, in order to cope with the larger momentum of the piston, a thicker cylinder buffer sleeve is used to gradually decelerate the piston in a longer stroke and reduce the instantaneous impact force. On the contrary, reducing the thickness of the cylinder buffer sleeve will shorten the buffer process, and the buffer force will act on the piston in a shorter time, which is suitable for occasions with a shorter buffer stroke requirement.
Furthermore, the pore or flow channel structure inside the cylinder buffer sleeve is an important factor in adjusting the buffer effect. These structures can control the flow of gas during the buffer process. If the pores or flow channels are small and limited in number, the gas discharge speed will slow down, and when the cylinder buffer sleeve is compressed, the internal pressure will rise rapidly, generating a larger buffer force. Properly increasing the size and number of pores or flow channels can make the gas discharge more smoothly, and the change of buffer force is more linear, which is conducive to more precise buffer control. For example, in some automated equipment that requires precise control of the piston position, by optimizing the pore structure of the cylinder buffer sleeve, the piston can be made to stop smoothly when it reaches the target position.
Finally, the installation preload of the cylinder buffer sleeve is also an adjustable parameter. Properly increasing the preload can make the cylinder buffer sleeve produce a certain resistance to the piston in the initial stage, consume some energy in advance, and change the starting part of the buffer curve. However, excessive preload may increase the friction when the piston starts and affect the normal operation of the cylinder. Therefore, it is necessary to reasonably adjust the installation preload of the cylinder buffer sleeve according to the specific working requirements and load conditions of the cylinder to achieve an ideal buffering effect.
