The role of the cylinder
The cylinder is a commonly used power element in mechanical equipment. It converts the pressure energy of compressed air into mechanical energy, and the driving mechanism realizes reciprocating linear motion, swinging, or rotary motion.
Types, characteristics, and uses of commonly used cylinders
1. Pen cylinder
Pen-shaped cylinder, also known as a mini cylinder (or micro cylinder, micro cylinder), is made of stainless steel and aluminum alloy;
Features of mini cylinder: cheap price, compact structure, beautiful appearance, front and rear thread installation, and fixation, can effectively save installation space, suitable for high-frequency use requirements, application industries include electronics, medical, packaging machinery, etc.
Precautions for use:
A magnetic switch mounting bracket is required, and the installation methods of the magnetic switch are divided into steel belt installation and rail installation.
It is necessary to connect the cylinder piston rod and the moving parts through the floating joint so that the moving parts can move smoothly and smoothly, and prevent jamming.
It is best to leave a margin for the selection of the cylinder stroke.
2. Thin cylinder
Features of thin cylinder:
It has the advantages of compact structure, lightweight, and small space occupation; the cylinder body is square, and can be directly installed on various fixtures and special equipment without installing accessories; the cylinder output connecting rod is divided into inner and outer teeth; it needs to be used with guiding elements.
3. Free installation cylinder
The characteristics of the free installation type cylinder: the stroke is short, the cylinder body is rectangular; the cylinder output connecting rod is divided into inner teeth and outer teeth; the cylinder can be fixed from four directions of the body, and there are various installation methods.
4. Double shaft cylinder
The dual-axis cylinder is a parallel connection of two single-rod thin cylinders. The characteristics of the dual-axis cylinder are:
The embedded body is installed and fixed, saving installation space; it has certain guiding, anti-bending, and anti-torsion performance, and can withstand a certain side load; the front end of the body can adjust the stroke of the cylinder and relieve the impact, which is better than the single-axis cylinder. Make more effort.
5. Guide rod cylinder
The guide rod cylinder is divided into the linear bearing type and copper sleeve type. The linear bearing type is suitable for pushing action, suitable for low friction motion occasions, and the copper sleeve type is suitable for radial load and high load occasions.
Features of the guide rod cylinder: compact structure, can effectively save installation space, has its own guiding function, can withstand a certain lateral load, and can be installed in a variety of ways. It can be used for blocking, feeding, pushing, punching, clamping, and other occasions.
6. Slide the cylinder
The sliding table cylinder is guided by cross ball guide rails, with low friction force, which can achieve smooth movement without loosening.
The characteristics of the sliding table cylinder: compact structure, saving installation space; high guiding accuracy, torque resistance, strong load capacity; relatively expensive.
7. Rodless cylinder
The rodless gas rod does not have the rigid piston rod of the ordinary cylinder, and it uses the piston to directly or indirectly realize the reciprocating motion. Divided into: mechanical coupling and magnetic coupling, the biggest advantage of this type of cylinder is that it saves installation space, and is especially suitable for occasions with small cylinder diameter and long strokes.
Precautions for use:
It cannot be used to fix the middle slider, it must be used to fix the front and rear seats at both ends.
The cylinder avoids direct force, causing the cylinder tube to bend, and finally uses a floating link.
8. Air claw
A pneumatic gripper is a key component of modern pneumatic manipulators, which can realize various grasping functions.
Divided into: parallel gripper, swing gripper, rotary gripper, three-point gripper, and four-point gripper.
The characteristics of this cylinder: all functions are double-acting, can achieve bidirectional grasping, can be automatically centered, and have high repeatability; the grasping torque is constant.
9. Swing cylinder
The swing cylinder is divided into two types: rack and pinion type and vane type. The rack and pinion type is used more, which is used for object rotation, turning over, and classification.
10. Rotary pressing cylinder
The rotary pressing cylinder realizes the function of rotary pressing. The rotation direction is divided into left and right. It is usually used for the structure with compact space to realize the rotary pressing action.
