clamping technology - putzin maschinenbau hydraulic fixture ... turning/grinding of the bore and...

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CLAMPING TECHNOLOGYIndividual special clamping tools

2 Putzin Maschinenbau GmbH • www.putzin.de • [email protected] • +49 9241 4994-0

Know-how, the highest quality and first class engineering.

We see ourselves as a „system supplier“ and offer our customers a full service, covering design & development, production of various individual components, prototypes and small series as well as the assembly of component parts and complete machines and installations.

Putzin Maschinenbau GmbH was formed in 1958 as a one-man operation in Pegnitz, Germany. Under the leadership of company founder Herbert Putzin, the company has grown rapidly and substantially. Today, more than 50 years since its formation, the internationally operating company is managed by the third generation of the family.

We produce quality products for nearly all industries on an area of more than 4,500m2 at two sites in the easily accessible (via motorway A9) town of Pegnitz.

Q U A L I T Y S I N C E 1 9 5 8

3Putzin Maschinenbau GmbH • www.putzin.de • [email protected] • +49 9241 4994-0

The ever-growing quality requirements on man, machine and production require increasingly precise clamping devices.

Putzin Maschinenbau GmbH has taken this into account and expanded the clamping technology sector to include „individual special clamping tools“.The range covers all clamping tools for all processing modes.

Our experienced and highly qualified employees design and develop, in close cooperation with your production team, optimal solutions for your requirements and problems.

Clamping devices from Putzin can be adapted and used on all machine tools.

All clamping devices from Putzin are protected against overload of the clamping element.

All products are, of course, compliant with the new machine guidelines.

We offer:• Specification analysis• Preparation of engineering designs• Creation of the approval drawing and the production documentation• Quality assured production and assembly• Documented in-house acceptance• Technical documentation according to the new machine guidelines• Commissioning

Let us know your requirements.We will draw up a solution that is tailored to meet your requirements.We are flexible and systematically address your individual needs.

Challenge us, we will convince you!

C L A M P I N G T E C H N O L O G Y


Chucks• Diaphragm chuck ............................................ page 6 / 7

• Bolt chuck ........................................................... page 8

• Pivoting jaw chuck .......................................... page 9

• Collet chuck ........................................................ page 10

• Face clamping chuck ...................................... page 11

Clamping mandrels• Mandrel with special threads .................... page 12

• Taper mandrel ................................................... page 13

P R O D U C T O V E R V I E W

Fixtures• Hydraulic fixture ................................................. page 14

• Manual fixture ..................................................... page 14


Workpiece Description of workpiece Process Clamping range Suitable clamping system Page

„Clamping at the tooth profile; turning/grinding of the bore and plane surface“

„Clamping at the tooth profile; turning/grinding of the bore and plane surface“

25 - 100 mm Diaphragm chuck GR175

6/750 - 175 mm Diaphragm chuck GR250

175 - 275 mm Diaphragm chuck GR320

„Cylindrical cast blanks / steel components, high clamping force assumed“

„Clamping on the outside diameter; heavy-duty turning and drilling“

10 - 60 mm Bolt chuck GR160



„Cylindrical cast blanks / steelcomponents, smallinstallation space“

„Clamping on the outside diameter; heavy-duty turning and drilling“

80 - 130 mm Pivoting jaw chuck GR250

9130 - 200 mm Pivoting jaw chuck GR320

„Shafts and shaft-like workpieces; chucked components“

„Clamping on the outside diameter; turning/grinding of diameters; milling/grinding of external tooth profiles“

12 - 35 mm Collet chuck GR01



„Symmetrical and asymmetricalworkpieces; additional centringpossible“

„Clamping with pivoting clamping fingers; turning and drilling processes“

„depending on the componentgeometry“

Face clamping chuck 11

„Gears made from steel/cast iron;high precision requirements“

„Clamping inside the bore/internal diameter; milling/grinding of external tooth profiles“

25 - 38 mm Mandrel with special thread GR03






”Cylindrical workpieces;high precision requirements“

“Clamping inside the bore/internal diameter;turning/drilling/grinding of the workpiece”







“Cylindrical workpieces“

“Clamping inside the bore/internal diameter;turning/drilling/grinding of the workpiece”

25 - 38 mm Taper mandrel GR03






„Cast components““Clamping with hydraulic clamps; complete machining on horizontal and vertical machine tools”

500x500x500 mm Hydraulic clamping device 14

„Cast components“„Manual clamping of the workpiece; complete machining on horizontal and vertical machine tools”

500x500x500 mm Manual clamping device 14

P U T Z I N „ C L A M P I N G F I N D E R “


Function:The clamping element of this chuck is a diaphragm, which works in a similar fashion to a disc spring. When the diaphragm is pushed forward by the power clamping of the machine, the jaws open and the workpiece is released and can be inserted or removed. As soon as the release force is withdrawn, the diaphragm springs back, the jaws close and the workpiece is clamped and can be machined. The diaphragm works practically wear-free in its elastic area - which guarantees a long life span. The chuck jaws can be quickly replaced to suit various workpieces and dimensions - this gives a high level of flexibility. The chuck jaws can also be configured to suit automatic workpiece changes - this increases your productivity. Like all clamping devices from Putzin, the diaphragm chuck is protected against overload when clamping / releasing.

Features:• High concentric accuracy < 0.005 mm• Radial and axial clamping• Low-maintenance• Ease changeover to similar workpieces using change parts• No overloading the diaphragm due to mechanical safety stops• Absolutely wear-free

Application:• Clamping of spur and helical gears• Clamping within the gear pitch circle in order to machine the bore and end faces• Suitable for all rotating mechanical machining processes

Size GR 175 GR 250 GR 320

Clamping range 25 - 100 mm 50 - 175 mm 175 - 275 mm

Diaphragm chuck

Workpiece (example)

unclamped clamped


Function:The diaphragm chuck may also be used with master jaws, which are directly fitted to the diaphragm. Various workpiece-specific change jaws can be screwed onto the master jaws to cater for components of different geometries.

Features:• High concentric accuracy < 0.005 mm• Radial and axial clamping• Low-maintenance• Ease changeover to similar workpieces by means of change parts• No overloading the diaphragm due to mechanical safety stops• Absolutely wear-free

Application:• Clamping of cylindrical workpieces in order to machine the bore and end faces• Suitable for all rotating mechanical machining processes



Diaphragm chuck

Workpiece (example)

unclamped clamped


Function:The bolt chuck features diagonally arranged clamp bolts, which are operated via a draw-flange through the machine. This exerts a large clamping stroke movement in the axial and radial direction. The workpiece is clamped and at the same time pushed axially against the stopper. The bolt chuck stands out due to its high radial clamping force.

Features:• Very high clamping force• Radial and axial clamping• Large clamping stroke• Ease changeover to similar workpieces

Application:• Suitable for heavy-duty machining• Especially suitable for castings



Bolt chuck

Workpiece (example)

unclamped clamped


Function:The pivoting jaw chuck is characterised by the three supported, pivoting jaws. They are operated via a draw-flange through the machine. A radial and an axial clamping force are exerted onto the workpiece via the lever action.

Features:• High clamping force• Radial and axial clamping• Compact and short design• Ease changeover to similar workpieces

Application:• Suitable for heavy-duty machining• Especially suitable for castings

Size GR 250 GR 320

Clamping range 80 - 130 mm 130 - 200 mm

Pivoting jaw chuck

Workpiece (example)

unclamped clamped


Function:The collet chuck contains a slotted taper collet. The application of the axial clamping force through the machine compresses the collet radially via the taper and clamps the workpiece. At the same time, the axial movement of the collet ensures that the workpiece is pulled against the stopper. A mechanical safety stop prevents overloading of the collet.

Features:• Radial and axial clamping force• Bridgeable workpiece tolerance IT13• Easy collet changes e.g. with bayonet fitting• Quick changeover to similar workpieces• Safety stop in the chuck prevents overloading of the collet• Internal and external machining possible

Application:• Turning / grinding of shafts and shaft-like workpieces (optionally with tip centre)• Milling and grinding of tooth profiles



Collet chuck

Workpiece (example)

unclamped clamped


Function:The face clamping chuck has face clamping fingers that can be arranged as required. This versatility also allows you to accurately clamp asymmetric workpieces. The application of the axial clamping force through the machine moves the face clamping fingers into position and the workpiece is clamped with a high axial clamping force. Centring of the component is also possible.

Features:• High axial clamping force• Easy loading by moving of the clamping fingers• Clamping of asymmetric workpieces• Versatile

Application:• Suitable for all rotating mechanical machining processes• Chuck size is determined by the workpiece

Face clamping chuck

Workpiece (example)

unclamped clamped

60°


Function:These clamping mandrels have a slotted clamping sleeve with a special thread, which is simply screwed on and secured on the base mandrel. When the force is applied onto the clamping sleeve in an axial direction, it expands in the radial direction. The workpiece is clamped. At the same time, the axial movement of the sleeve ensures that the workpiece is pushed against the stopper. A mechanical safety stop prevents overloading of the clamping sleeve.

Features:• Transmission of large torques• High radial clamping force• High concentric accuracy• Absolute centric expansion• Radial and axial clamping force• Bridgeable workpiece tolerance IT13• Easy collet changes• Quick changeover to similar workpieces

Application:• Especially suitable for high precision requirements• Flange or pointed centring mandrels can be used

Size GR 03 GR 04 GR 05 GR 06 GR 07 GR 08

Clamping range 25 - 38 mm 38 - 52 mm 52 - 62 mm 63 - 82 mm 82 - 100 mm 100 - 122 mm

Mandrels with special threads

Workpiece (example)

unclamped

Workpiece (example)

clamped


Function:This clamping mandrel has a slotted taper collet, which is simply pushed onto the base mandrel. When the force is applied onto the collet in an axial direction, it expands over the taper in the radial direction and clamps the workpiece. At the same time, the axial movement of the collet ensures that the workpiece is pushed against the stopper. A mechanical safety stop prevents overloading of the collet.

Features:• Transmission of large torques• High radial clamping force• Absolute centric expansion• Radial and axial clamping force• Bridgeable workpiece tolerance IT13• Easy collet changes• Quick changeover to similar workpieces• Two independent clamping positions possible

Application:• Turning and grinding of cylindrical parts• Flange design or pointed centring mandrels can be used

Size GR 03 GR 04 GR 05 GR 06 GR 07 GR 08

Clamping range 25 - 38 mm 38 - 52 mm 52 - 62 mm 63 - 82 mm 82 - 100 mm 100 - 122 mm

Taper mandrel

Workpiece (example)

clamped


Function:Clamping devices can be provided for any workpiece geometries and machining modes. This may include a manual, hydraulic or pneumatic clamping mode. Hydraulic clamping can be achieved through the machine or an external unit.

Features:• Manual, pneumatic or hydraulic clamping mode• External hydraulic unit optionally possible

Application:• Complete machining of castings on horizontal or vertical machine tools

Hydraulic clamping device

Workpiece (example)

Manual clamping device

Workpiece (example)


ENQUIRY FORM FOR SPECIAL CLAMPING TECHNOLOGY:Clampingmandrel Chuck Clamping device

Customer: Project name/-no.:

For further information please contact: Telephone: Email:

C O M P O N E N T D A T A:

Design data: Finished component drawing(minimum requirement)

Raw part drawing(minimum requiremenet)

3D-model (optional) (essential for castings!)

Where should/can beclamped:Where should/can beattached:

Machining operation: Turning Grinding Milling Drilling

Direction of spindle rotation:

right left

Machining data: Speed: [rpm] Cutting speed: [m/min.]

Feed rate: [mm/rev] Cutting depth: [mm]

M A C H I N E D A T A:

Machine type anddescription:

Clamping method: Clamping via machine Clamping manually

Machine connection: Drawing Data (short-taper size, cylinder seat, ...):

Clamping cylinder: Type: hydraulic pneumatic

Force: [N]Optional:Lagest clamping force: [N]Max./min. clamping pressure: [bar]

Stroke: [mm]

Processing area: Drawing Data: (interfering contours?)

Additional details:

G E N E R A L I N F O R M A T I O N:

How many clamping tools should be included in the offer?

Deadline: (When is the offer required?)

FAX: +49 9241 4994-99

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Wilhelm-Busch-Strasse 3-5D-91257 Pegnitz

Tel.: +49 9241 4994 - 0Fax: +49 9241 4994 - 99Email: [email protected]: www.putzin.de

Subject to technical modifications and error. Dimensions are non-binding. Version 1.0

clamping technology - putzin maschinenbau hydraulic fixture ... turning/grinding of the bore and...

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