China Naming Network - Ziwei knowledge - What is the accuracy of a 90-degree inclined cylinder?

What is the accuracy of a 90-degree inclined cylinder?

The stroke accuracy of ordinary cylinders is generally below 1mm, and it is better to use other power modes for high-precision equipment. If you have to use a cylinder, you'd better choose a cylinder with a slightly larger stroke than the one you want to use. For example, to use a stroke of 200mm, it is best to choose 2 10mm, and then add a rigid and flexible limit at 5mm and 205mm, that is, a hydraulic buffer and a limit bolt. Lz determines the standard cylinder of smc. How to operate a 2000mm cylinder and how to adjust the angle when the cylinder rotates 90 degrees? Various angle problems often occur in the use of the rotating drum, such as how to control the rotating drum at 90 degrees or 180 degrees to a set angle, such as program control? Rotation angle, how to adjust the angle you want? Let's analyze it in detail.

Angle adjustment steps of 90-degree rotating cylinder

The rotation angle of the universal rotary cylinder can be adjusted internally, such as plus or minus 15 degrees, plus or minus 90 degrees, etc. The specific adjustable angle depends on the model. Among them, gear angle cylinders are all adjustable, but vane type is not.

1, if the rotary cylinder that can be directly adjusted is selected, the screw on the rotary cylinder can be directly adjusted.

2. Linear cylinder can be used for indirect angle control, and two cylinders can realize two angle control.

3. The specific implementation method is: install a cylinder at a certain radius outside the center of the circle that needs to be rotated. When the cylinder moves in a straight line, the mechanical part can rotate at a certain angle around the center of the circle. Two rotation angles can be achieved by installing two cylinders in different directions. .

4. This method has been used before controlling the rotary ironing machine, which requires two hydraulic cylinders to work alternately.

How to use a 90-degree rotary cylinder?

1, type selection

According to the working requirements and conditions, correctly select the type of cylinder. The buffer cylinder should be selected when the cylinder reaches the end of the stroke without impact phenomenon and impact noise; Light weight is required, and light cylinders should be selected; Require narrow installation space and short stroke, and select thin cylinder; With transverse load, optional cylinder with guide rod; Require high braking accuracy and cylinder locking; The piston rod is not allowed to rotate, and a cylinder with the function of not rotating the piston rod can be selected; Heat-resistant cylinder should be selected in high temperature environment; In corrosive environment, corrosion-resistant gas cylinders should be selected. In the harsh environment such as dust, it is necessary to install a dust cover at the extended end of the piston rod. When pollution is needed, choose oil-free or oil-lubricated cylinders.

2, the installation form

According to the installation location, use and other factors. In general, a fixed cylinder is used. When it is necessary to rotate continuously with the working mechanism (such as lathe, grinder, etc.). ), the rotary cylinder should be selected. When the piston rod needs to swing in an arc besides linear motion, the pin cylinder is selected. When there are special requirements, the corresponding special cylinder should be selected.

3, the size of the force

That is, the choice of cylinder diameter. According to the load force, determine the thrust and tension output by the cylinder. Generally speaking, according to the external load theory, the cylinder force required by conditions is balanced, and different load rates are selected according to different speeds, so that the cylinder output force has a slight margin. The cylinder diameter is too small and the output force is not enough, but the cylinder diameter is too large and the equipment is bulky, which increases the cost, gas consumption and energy waste. When designing the fixture, the force amplifier should be used as much as possible to reduce the overall size of the cylinder.