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SMC Networks MWB 100 Series, Руководство по эксплуатации

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- 9 - 

 

 

2-2. Design 

The compatibility of the product is the responsibility of the person who designs the equipment or decides its 
specifications

   

 

！

 

 

W a r n i n g

 

- Refer to section 1-3 Precautions on model selection. 

- Refer to the table below for the recommended rod dimensions. 

Lock unit model 

MWB

∗

32 

MWB

∗

40 

MWB

∗

50 

MWB

∗

63 

MWB

∗

80 

MWB

∗

100 

Applicable rod size * 

Ø12 

f8

 

Ø16 

f8

 

Ø20 

f8

 

Ø25 

f8

 

Ø30 

f8

 

Material 

Carbon steel / Stainless 

Surface treatment 

Hard chrome alloy 

10μm

 

Surface roughness 

Max. roughness Rz1.6 or less 

∗

If a larger diameter rod is used; it may lead to the breakage of the inner parts of the  lock unit, mounting 
failure of lock unit, operation failure or a decrease in lock holding force. 

 

！

 

 

C a u t i o n

 

- The shape of the rod end to be inserted into the lock unit should be like those shown below so that 
the lock unit seal and inner surfaces are not damaged. 

 

 
 
 
 
 
 
 

      

(1) For male thread

    

 

              

 

      

(2) For female thread 

                                  

  

Fig. 2 Rod end style 

 

- Do not apply excessive lateral load or external force to the lock unit. They may break the lock unit. 
- Do not use the product in applications where the rod rotates. 
-  Do not apply loads with impact, strong vibration or rotational forces while the lock mechanism is 
activated. 

 

External impact loads, strong vibrations or rotating forces may break or reduce the life of the lock unit. 

- If the piping between the lock release port and the solenoid valve for locking is long or the piping 
diameter is small, the stopping accuracy of the lock unit will be decreased. 
- The rod will move suddenly if the lock unit is unlocked whilst the rod is under load or if the piston 
is  pressurised  incorrectly. If the sudden movements frequently occur in the application, make 
adjustment to the air circuit or control system to prevent short life or breakage of the lock unit. 
- Do not operate the product outside of the specified rod speed. 
- The base oil component of grease may seep out. 

The base oil of grease in the lock unit may seep out from the holding plate or cap depending on the operating 

conditions (ambient temperature of 40

o

 

C or more, pressurized condition, low frequency operation etc.). If the lock 

unit is required for use in a clean room consult with SMC.

 

 
 
 
 
 
 
 
 

φD

φD

-

2

30°

面取部

φD

30°

φD

-

2

面取部

Chamfer 

Chamfer 

Содержание MWB 100 Series

Страница 1: ...Doc no MWB OM0078Q PRODUCT NAME Lock unit MODEL Series Product Number MWB 32 100 UT MWB 32 100TN UT MWB 32 100TF UT ...

Страница 2: ...selection 2 Installation and Handing P 8 2 1 Air supply 2 2 Design 2 3 Mounting 2 4 Operating environment 2 5 Pneumatic circuit 2 6 Adjustment and Operation 3 How to use P 15 3 1 Usage 3 2 Lock release mechanism 4 Maintenance P 18 4 1 Checks 4 1 1 Inspection points 4 1 2 Inspection interval 5 Troubleshooting P 19 6 Construction P 24 1 ...

Страница 3: ... failure when configuring the equipment 2 Only personnel with appropriate training should operate machinery and equipment The product specified here may become unsafe if handled incorrectly The assembly operation and maintenance of machines or equipment including our products must be performed by an operator who is appropriately trained and experienced 3 Do not service or attempt to remove product...

Страница 4: ...of the product 3 Prior to using SMC products please read and understand the warranty terms and disclaimers noted in the specified catalog for the particular products 2 Vacuum pads are excluded from this 1 year warranty A vacuum pad is a consumable part so it is warranted for a year after it is delivered Also even within the warranty period the wear of a product due to the use of the vacuum pad or ...

Страница 5: ...d size affects holding force Ensure the rod used is the appropriate size as shown in the table above For the shape of the inserted rod refer to Fig 2 Rod end style 1 2 Stop accuracy Lock unit model MWB 32 MWB 40 MWB 50 MWB 63 MWB 80 MWB 100 Stop accuracy 1 0mm Conditions Used with air cylinder Mounting orientation Horizontal Supply pressure 0 5MPa Piston speed 300mm s Load condition Upper limit of...

Страница 6: ... not exceed the load for the maximum speed V 100mm s Used with air cylinder Load weight m 50kg Travel distance st 500mm Positioning time t 2s Load Vertically downwards Operating pressure P 0 4MPa Calculate the maximum speed of the load V mm from travel time of the load t s and stroke st mm Graph 1 Step 1 Calculate the maximum speed of the load V Example Step 2 Find the lock unit size Fig 1 Double ...

Страница 7: ... 7 Selection graph ...

Страница 8: ...e fluid degradation of the lubrication properties inside the equipment may occur resulting in reduced reliability or reduced service life of the equipment Please consult with SMC Install an air filter Install an air filter upstream near the valve Select an air filter with a filtration size of 5μm or smaller Therefore take appropriate measures to ensure air quality by providing an after cooler or w...

Страница 9: ...k the lock unit Do not use the product in applications where the rod rotates Do not apply loads with impact strong vibration or rotational forces while the lock mechanism is activated External impact loads strong vibrations or rotating forces may break or reduce the life of the lock unit If the piping between the lock release port and the solenoid valve for locking is long or the piping diameter i...

Страница 10: ... sufficiently rigid mounting base taking this force into consideration There is a risk of personal injury or damage to equipment Power failure may cause the circuit pressure to decrease Consider a possible loss of power source Measures should be taken to prevent personal injury and damage to equipment in the event that there is a power malfunction to equipment controlled by air pressure electricit...

Страница 11: ...least 0 3MPa or release the lock by using the lock release bolt Page 16 Do not apply loads with impact strong vibration or rotational force while the lock mechanism is activated External impact load strong vibration or rotating force may break or reduce the life of lock part Do not use the product until you have verified that the equipment can operate properly After installation or repair apply co...

Страница 12: ...oid humidity in order to prevent generation of rust Preparation before piping Before piping perform air blow flushing or cleaning to remove any cutting chips cutting oil dust etc from the piping and fittings Winding of sealant tape When screwing together pipes and fittings etc be certain that chips from the pipe threads and sealant do not get inside the pipe Also when the sealant tape is used leav...

Страница 13: ...rk piece may fall temporarily depending on the timing of the load Back flow of the exhaust pressure from the common exhaust type valve manifold is not allowed If exhaust pressure for lock release flows backwards locking may not be performed correctly Use an individual exhaust type manifold or single unit valve Time between locking and lock release shall be 0 5 seconds or longer If locking time is ...

Страница 14: ...tion Use with air cylinder C a u t i o n Adjust the air balance of the cylinder Adjust the air pressure of the cylinder rod side and head side with the cylinder with load unlocked With balanced air the cylinder will not shoot out when unlocked Adjust the position for detection part of auto switch etc For intermediate stop adjust the auto switch detection position taking the overrun into considerat...

Страница 15: ... switches which posses self holding function of the output signal to the outside of the cylinder in order to adjust the overrun In order to reduce overrun and improve the stop accuracy reduce the time between the generation of the stop signal and stopping by locking as short as possible a Use an electric circuit for control and solenoid valve with high response b Keep the lock release solenoid val...

Страница 16: ...ti clockwise by hand with a hexagon wrench until resistance is felt Once that position is reached rotate it an additional 1 6th of a turn to securely tighten the release bolt Please do not use an electric driver or pneumatic driver Pressurize the lock release port with 0 3MPa or more of air pressure and check that there is no air leakage from the release bolt and lock correctly functions Unlocked ...

Страница 17: ...when the lock is manually unlocked 3 Take action to prevent the load from falling when unlocked a Place the load at the end of the downward stroke b Place guides etc to stop the load from falling c When the lock unit is used together with an air cylinder confirm that forces at both ends of the piston are balanced C a u t i o n When releasing the locked state with the release bolt for the purpose o...

Страница 18: ... countermeasures such as retightening screws or replacement of the lock unit Contact SMC Sales if the lock unit needs to be repaired 4 1 2 Inspection interval To ensure the MWB series with lock unit is kept in the best possible condition inspections need to be performed once or twice a year W a r n i n g Maintenance should be performed according to the items above Perform additional inspections as...

Страница 19: ...s energised Air leakage from the manual lock release bolt Return the manual lock release bolt to the locking status Air leakage may occur if the manual lock release bolt is not returned to the correct lock position and status No problems are confirmed in to above but lock is not released even when air is supplied to the lock unit It is possible that the inside of the lock unit is broken Release th...

Страница 20: ...ed from the solenoid valve Check the solenoid valve type if it is normal open type Change it to normal close type which supplies air while the valve is energized No problems are confirmed in to above but locking is not possible even when air is supplied to the lock unit It is possible that the inside of the lock unit is broken Replace the unit Do not disassemble or repair Contact SMC Sales office ...

Страница 21: ... or directly connect them Install a rapid exhaust valve close to the lock unit piping port Poor response of the solenoid valve for locking Replace the solenoid valve to the one with better response Poor response of the solenoid valve for locking to the auto switch for signal detection Replace the switch with the auto switch with better response Proximity switch for locking is installed outside of ...

Страница 22: ...ng a speed controller to keep the minimum operation speed or higher Remove the factor of load fluctuation Solenoid valve connected to the cylinder does not operate Check the power supply to the solenoid valve Check that the wiring of the solenoid valve is correct Check that the piping of the solenoid valve is correct Check if air is supplied to the solenoid valve Make sure that the solenoid valve ...

Страница 23: ... load rate of the cylinder c Stopping interval pitch is short d Stopping in the middle of cushioning process or immediately after the cushioning process When air cushion type is used e Line pressure fluctuates a Adjust the alignment of the piston rod and guide or use the floating joint b Use a larger cylinder c Set the stop interval to 40mm or wider d Change the cylinder to rubber cushion type c I...

Страница 24: ...ent 9 NEEDLE ROLLER Carbon steel 2 Heat treatment 10 PISTON SPRING Spring steel 1 Zinc chromated 11 ROLLER SPRING Spring steel 1 Zinc chromated 12 BUSHING Bearing alloy 2 13 HEXAGON SOCKET CAP BOLT Alloy steel 4 14 HEXAGON SOCKET CAP BOLT Alloy steel 2 15 WEAR RING Resin 2 16 PISTON SEAL NBR 1 17 ROD SEAL NBR 2 18 GASKET NBR 1 19 ELEMENT Bronze 1 20 RELEASE BOLT Alloy steel 1 21 SEAL WASHER NBR St...

Страница 25: ... ku Tokyo 101 0021 JAPAN Tel 81 3 5207 8249 Fax 81 3 5298 5362 URL http www smcworld com Note Specifications are subject to change without prior notice and any obligation on the part of the manufacturer 2011 SMC Corporation All Rights Reserved ...

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