Festo DFM-50-B Manual

Festo Ikke kategoriseret DFM-50-B

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Side 1/1

Assembly instructions (Original instructions)

8063354

2017-04e

[8065800]

†‡

Guide unit

DFM-...-B

Festo SE & Co. KG

Ruiter Straße 82

73734 Esslingen

Germany

+49 711 347-0

www.festo.com

1. Applicable documents

All available documents for the product  www.f

esto.com/pk

2. Safety

Swi

ch off compressed air before mounting work.

Protect the positioning range from access.

Keep foreign objects out of the positioning range.

3. Intended use

Stop, stopper cylinder or a single-axis feeding unit with larger loads on the

yoke plate.

4. Further information

Characteristic curves and permissible limits  www.festo.com/catalogue

Accessories (e.g., slot cover ABP)  www.festo.com/catalogue

5. Scope of delivery

1322

5d_2

1 DFM-...-B

2 DFM-...-B-...-EJ

3 DFM-...-B-...-AJ-EJ

4 DFM-...-B-...-AJ

5 DFM-...-B-YSRW

6 Centring sleeve

(1x)

(4x)

6. Not in scope of delivery

1322

5d_2

7 Screw (2x)

1)2)3)4

Required surface (I) evenness precision only in case of the GF variants:

DFM-12 ... 20-B = 0.02

DFM-25 ... 63-B = 0.05

In case of non-observance of the evenness precision, guide rods can become jammed.

The usage of centring sleeves is not possible for DFM-20 … 40-B and mounting variant d).

In the case of DFM-…-B-…-EJ, the mounting variant d) is possible only to a limited extent,

since the fastening holes are largely covered.

Additional, required dimensions of the guide units 1 through 5 can be found in the

catalogue ( www.festo.com/catalogue)-

7. Mounting, general

Note

In order to avoid operative malfunctions and increased wear:

Observe the characteristic curves and permissible limits.

Handle the guide units 1 5 through in such a way that the guide rods and

piston rod are not damaged.

Ensure that the mounting surfaces (H) and (I) are flat.

Install guide units 1 5 through without distortion.

13225d_11

13225d_19

13225d_24

13225d_25

Mounting variants:

a) Flat from on top

13225d_7

b) Flat from underneath

13225d_8

c) Lateral from underneath

1322

5d_9

d) On front end

2)3)

13225d_10

Use the following screws 7 6 and centring sleeves , depending on the

mounting variant:

DFM-...-B a) b) c) + d) Yoke plate (J)

12 M4 ZBH-9 M5 ZBH-9 M4 ZBH-5 M4 ZBH-5

16 M5 M5

20 M5 M6 ZBH-7

ZBH-9

25 M6 M6

32 M6 ZBH-12 M8 ZBH-12 ZBH-9

40 M8

50 ZBH-12 M8 ZBH-12

63 M8 M10 M10

Provide mounting holes for the centring sleeves 5 on the

surfaces (H) and (I)

ZBH 5 7 9 12 15

@ @ D1

[mm] 5 7 9 12 15

min.

[mm] 1.4 1.4 1.9 2.4 2.9

Information

To mount guide units 1 through 5:

If possible, use screws 7 with a screw-in length of 1.5 x d

Fasten the guide unit according to load, size and stroke length, but with

at least 2 screws 7.

X  1.5

Note

To mount the variant d):

With protruding guide rods in the retracted state:

Ensure there is clear passage of the guide and stop rods, e.g. through

grooves in the mounting surface (H).

8. Mounting the proximity sensors

When intermediate strokes are being sensed, the proximity sensor can be

at the level of a fastening hole (K) and not fastened.

Take the following assembly alternatives e) through g) into consideration:

1322

5d_1

e) Offset the proximity

sensor 8 within its

operating path (b) by 6 mm.

13225d_18

f) Rotate the proximity

sensor 8 by 180°.

g) Select another perm

issible p

roximity sensor

(www.festo.com/catalogue)

As required, cover the sensor slots with a slot cover ABP 9 and use them to

fix the cables into place ( More detailed information).

9. Stroke adjustment

9a. For guide units 2

22 through 4

4 4 (no metallic stop)

13225d_16

Vent th

e guide units 2 through 4.

Note

To avoid the unintentional loosening of the piston rod:

When loosening and tightening the lock nut (F), counterhold the stop nut (G).

Retracted end position (EJ) Extended end position (AJ)

 Loosen the lock nut (D). Loosen the lock nut (F).

Adjust the stop rod (Y) with

the internal hexagon socket (E).

Shorten the stroke by a maximum

of 10 mm.

Adjust the stop nut (G).

Shorten the stroke by a maximum

of 10 mm.

Tighten the lock nut (D). Observe

the tightening torque M

( Table).

Tighten the lock nut (F). Observe

the tightening torque M

( Table).

Vent the guide units 2 4 through .

Start the test run. Check the set stroke.

Tolerance for tightening torques M

with no indication of tolerance: ± 20 %

9b. For guide unit 5

55 (metallic stop)

DFM-...-B-YSRW DFM-40-B-YSRW

5d_15

13225d_14

Vent the guide unit 5.

Note

To reduce the shortening of the stroke dimension a by a maximum of 10 mm

and enlarge it by dimension l by a maximum of 10 mm ( Section 11).

Do not exceed fall short of dimension a/l since the shock absorber

performance is otherwise strongly reduced.

Adjust the shock absorber (B) to dimension a/l as follows:

Retracted end position Extended end position

 Loosen the lock nut (A)/screw (C). Loosen the lock nut (A)

Adjust the shock absorber (B).

Observe dimension a. Shortened

the factory-set stroke by

a maximum of 10 mm ( Table).

Adjust the shock absorber (B).

Observe dimension l. Increase the

factory-set stroke by a maximum

of 10 mm ( Table).

Tighten the lock nut (A)/screw (C).

Observe the tightening torque M

( Table).

Tighten the lock nut (A). Observe

the tightening torque M

( Table).

Vent the guide unit 5.

Start the test run. Check the set stroke.

10. Maintenance and care

10a. In case of guide unit 5

During o

peration, the viscosity of the hydraulic oil reduces due to friction

heat.

 Shock absorber reset times become shorter (hard knocking).

At low temperatures around 0°C, the viscosity of the h

draulic oil rises.

 Shock absorber reset times become longer.

The moving mass should always reach the end

position safely, but

not knock

hard against it.

The shock absorbers should be replaced when their functioning / shock-

absorbing performance is no longer ensured due to excessive wear.

Check the cushioning regularly for the following signs of wear:

– Oil leakage

– Hard knocking

– Stop rod remains in retracted end position / moves slowly from end

position

The following environmental conditions shorten the test intervals:

– High thermal stress

– Severe accumulation of dirt

– Proximity of grease-dissolving liquids or vapours.

Exchange the shock absorber (B) after 10 million strokes ( Section 9b).

11. Dimensions, w

dths across flats and tightening torques M

DFM-...-B 12/16 20 25 32 40 50 63

D ß − 8 13 13 13 17 17

EJ M

[Nm] − 3 7 10 10 24 24

E ß − 2.5 4 4 4 5 5

F ß 10 13 17 17 17 19 19

AJ M

[Nm] 1.7 3 6 10 10 16.5 19

G ß 17 19 24 30 30 36 36

A ß − 15 17 19 27 27 32

[Nm] − 5 8 20 35 35 55

YSRW B ß −11 13 15 20 20 24

C ß −4 −

[Nm] −10 −

a [mm] − 34

-10

37.1

-10

48.1

-10

56.5

-10

58.5

-10

l [mm] − 4.9

+10

5.2

+10

4.7

+10

3.2

+10

10.4

+10

11.2

+10

Wire-mesh bo

)

Wire-mesh box

Produkt Specifikationer

Mærke:	Festo
Kategori:	Ikke kategoriseret
Model:	DFM-50-B

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