簡述SMC滑臺式氣缸技術文章,優質品牌SMC滑臺式氣缸

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An “allowable stationary mass” is the allowable amount of stationary mass that can be applied vertically to the workpiece mounting surface of the table while the table is at the stroke end.

A highly rigid and highly accurate slide table integrated with an actuator.

Guide of high rigidity

Two styles of guide rod bearings to accommodate your application Slide bearing 

— For heavy loads Ball bushing bearing — For highly accurate and smooth operation

Can be mounted on two sides.

Setting Conditions

Confirmation of sum of load ratio to the guide unit Σαn ≤ 1

Selection of bearing type 

CXTM (Slide bearing) CXTL (Ball bushing bearing)

0.015 0.019 0.044 0.180 0.123 0.109

60 70 125 125 140 170

Adjusting bolt with bumper is standard.

A shock absorber can be installed (option).

Auto switch can be mounted

0.002 0.004 0.007 0.030 0.032 0.025

350 500 900 900 1100 1900

CXTM (Slide bearing) CXTL (Ball bushing bearing)

0.015 0.019 0.044 0.180 0.123 0.109

60 70 125 125 140 170

Adjusting bolt with bumper is standard.

A shock absorber can be installed (option).

Auto switch can be mounted

Horizontal mounting: f = μ x W Inclined mounting: f = μ x Wcosθ + Wsinθ 

(Refer to the figure on the right.) Vertical mounting: f = W μ = 0.3 (Slide bearing) μ = 0.1 (Ball bushing bearing)

Σαn ≤  ———— 1 (L/GP) 2 (Provided that L > GP)

1. Mounting (Horizontal, Inclined, Vertical) 2. Load mass W (kg) 3. Operating pressure P (MPa) P ≤ 0.7 MPa 4. Speed V (mm/s) V ≤ 500 mm/s

Refer to “Theoretical Output” on page  525.

Model selected Without shock absorber

Series CXT Model Selection Selection Step

Provisional selection of cylinder bore size

Calculation of resistance force f

Calculation of theoretical output F

Calculation of load ratio β to the theoretical output of cylinder β = f/F

Confirmation of adjusting bolt capacity W ≤ WA

Model selected With shock absorber

Σαn  = —————————————— + ——————————— Load mass [W] Maximum load mass [Wmax] Moment [mn] Allowable moment [Mn]

Maximum load mass (kg) 3 7 12 20 30 50

Maximum load mass (kg) 3 7 12 20 30 50

0.002 0.004 0.007 0.030 0.032 0.025

350 500 900 900 1100 1900

The moment load rate must be calculated in accordance with the above formula for all types, M1 to M3. As for Wmax and Mn, 

refer to the maximum load mass and allowable moment table in the next section. The moment for the inclined mounting must be calculated taking the moment caused by the load into consideration. Note)

 Make sure that the distance between the guide shaft center to the center of gravity of the load does not exceed the distance GP between the guide shafts given in the table below. 

If the distance must be exceeded due to unavoidable circumstances, decrease the load rate that is applied to the guide as indicated below in order to determine the distance.

Load mass [W] are as follows in compliance to the mounting way. Horizontal mounting: W Inclined mounting: Wcosθ 

(θ: Angle of inclination, refer to the figure below.) Vertical mounting: 0 (None)

CXT12 CXT16 CXT20 CXT25 CXT32 CXT40

簡述SMC滑臺式氣缸技術文章,優質品牌SMC滑臺式氣缸