Installation, use and new structure of SMC cylinder

Installation, use and new structure of SMC cylinder

1. The SMC cylinder is made of high-quality aluminum alloy material, and the inner surface is treated with hard anodizing. So, what are the installation, use, and new structures of cylinders? Let's take a look at the installation and usage of the cylinder below.

The surface of the SMC cylinder piston rod is pre treated with rolling quenching technology, and through hard chrome plating and precision grinding, the sealing component above the cylinder has a novel structure and good quality. It can provide normal operation without lubricating oil during operation, and the initial pressure of the cylinder is small. Start time, extend service life. The two end caps of the cylinder are equipped with spare ventilation screws, making it convenient for users to choose the direction.

The installation form is determined by the installation location and the purpose of use. In general, fixed installation methods are commonly used: axial support (MS1 type), front flange (MF1 type), rear flange (MF2 type); When the piston is required to move back and forth in a straight line while the cylinder body needs to swing in a large arc, the installation method of the tail ear shaft (MP4 or MP2 type) and the intermediate shaft pin (MT4 type) can be selected; If it is necessary to output linear reciprocating motion during rotation, a rotary cylinder can be used. When there are special requirements, special cylinders can be used.

2. The magnitude of the applied force

The selection of cylinder diameter. Determine the thrust and tension output of the cylinder based on the magnitude of the load force. Generally, the required cylinder force is balanced according to the external load theory, and different load rates are selected based on different speeds to provide a slight margin for the cylinder output force. The cylinder diameter is too small, resulting in insufficient output force, but the cylinder diameter is too large, making the equipment bulky, increasing costs, and also increasing gas consumption, wasting energy. When designing fixtures, expansion mechanisms should be used as much as possible to reduce the external dimensions of the cylinder.

3. Cylinder stroke

The stroke of the cylinder (piston) is related to its usage and the stroke ratio of the working mechanism. In most cases, full stroke should not be used to avoid collision between the piston and cylinder head, especially for clamping mechanisms. To achieve clamping effect, an additional stroke allowance of 10-20mm must be added according to the calculated stroke.

4. The movement speed of the piston

It mainly depends on the input compressed air flow rate of the cylinder, the size of the cylinder inlet and outlet ports, and the size of the inner diameter of the conduit. High speed movement should be taken as the maximum value. The speed of cylinder movement is generally 50-800 mm/s. For high-speed cylinders, a large inner diameter intake pipe should be selected; For situations where the load changes, in order to achieve a slow and smooth movement speed, a throttling device or a pneumatic hydraulic damping cylinder can be used, which makes speed control easier to achieve. When selecting a throttle valve to control cylinder speed, it is important to note that when a horizontally installed cylinder is pushing a load, exhaust throttle should be used for speed regulation; When lifting a load with a vertically installed cylinder, use intake throttle to adjust the speed; When it is required to move smoothly at the end of the stroke to avoid impact, a cylinder with a buffering device should be selected.

5. Cylinder selection

Method 1: Select the cylinder type based on the operation mode: there are three cylinder operation modes: double action, single action spring pressing in, and single action spring pressing out;

Method 2: Select other parameters:

(1) The size of the SMC cylinder diameter is determined based on the relevant load, air pressure used, and direction of action;

(2) Select the displacement distance of the cylinder stroke workpiece;

(3) Select cylinder series;

(4) There are different installation methods for different series of selected cylinder installation types, mainly including basic type, foot seat type, flange type, U-shaped hook, and shaft ear type;

(5) Select buffer without buffer, rubber buffer, air buffer, hydraulic shock absorber;

(6) The selected magnetic switch is mainly used for position detection, and it is required that the cylinder has a built-in magnetic ring.

6. Precautions for cylinder use

(1) The normal working conditions of a general cylinder are: ambient temperature of -35~80 ℃, working pressure of 0.4~0.6MPa;

(2) Before installation, a test should be conducted under 1.5 times the working pressure, and there should be no air leakage;

(3) During assembly, the relative motion working surfaces of all sealing components should be coated with lubricating grease;

Installation, use and new structure of SMC cylinder

Installation and use of SMC cylinder

1. If the load changes during work, a cylinder with sufficient output force should be selected.

2. Under high temperature conditions, corresponding high-temperature resistant cylinders should be selected.

3. The cylinder medium should pass through a filter element with a diameter of 40 μ m or more, and can be used after filtration.

4. In low-temperature environments, anti freezing measures should be taken to prevent moisture from freezing and cleaning in the system.

5. Before using the gas cylinder, a no-load test should be conducted. Before operation, the buffer should be adjusted small and gradually increased to prevent excessive impact from damaging the gas cylinder.

6. During the operation of the cylinder, lateral loads should be avoided as much as possible to maintain the normal working life of the cylinder.

7. Remove the cylinder and do not use it for a long time. Pay attention to surface rust prevention.