DE10055591A1 - Workpiece clamp has two bodies to form the workpiece holder, and a third body pressed against them, to give a firm clamping action with easy release, and which withstands loading forces - Google Patents

Abstract

The clamp assembly (10), to secure a workpiece (12), has two bodies (14,16) mounted together in a release fitting to form a workpiece holder (18) between them. The second body has a clamping surface (20) against the workpiece, pressed by a second clamping surface (22) at a third body (24), with an angled surface (26) against the clamping direction (K), to be brought against a complementary angled surface (28) at the first body, to slide along it on a defined path. The third body is pressed laterally across the clamping direction by a setting unit (30), against the first body, which presses against the workpiece. The workpiece clamp assembly has a setting unit as a threaded bolt through the first body to engage a threaded drilling (32) at the third body. The bolt passes through the first body with limited play in the clamping direction, at least in sections. The first and second bodies are held together by a bolt fastener (34), which passes through the first body to engage a threaded drilling (36) at the second body. At least one of the three bodies has a flat or plate shape, or is in a circular ring. At least one of the three bodies is of metal, plastics, or a compound material and the like. At least one of the three bodies has a cladding at least at the clamping surfaces. The second body can be bonded additionally to the workpiece by an adhesive. The second body and the workpiece are coated with a cladding of plastics, rubber, a compound material and the like.

Description

The invention relates to a clamping device for fixing a work tee.

The aim of the invention is to provide an improved clamping device at the beginning to create the type mentioned above, which is used to transmit external forces a practically arbitrarily shaped workpiece is suitable.

According to the invention, a clamping device is used to achieve this object proposed for fixing a workpiece, the first and one includes second body part, which are releasably connected together and form a workpiece holder between them, the second body part has a clamping surface against which the workpiece by Beauf Impact can be pressed by means of a further clamping surface, which on a third body part of the device is provided, which also a ge has inclined surface with respect to the clamping direction with which it is transverse to the clamping direction with a complementary inclined inclined surface of the first body part can be brought into contact, along which it is at least is displaceable over a limited distance, and the third Body part generally by means of an adjusting device transversely to the clamping direction tion can be pressed against the first part of the body, so that the Slope surfaces generated movement component in the clamping direction the same to be pressed against the workpiece in good time.  

Because of this training is the manufacture of a frictional, be often detachable connection for transmitting external loads possible. Additional loads on the workpiece to be clamped for example by welding, shrinking, gluing or screwing are avoided. In addition, there is in particular a detachable connection possible when using composite materials that were previously glued were.

The actuating device preferably comprises at least one of the first bodies penetrating part into an internal thread of the third body part gripping fastening screw that at least off the first body part in sections with play at least in the clamping device interspersed.

The first and the second body part can in particular have at least a fastening screw can be connected to each other. This fastener screw can penetrate the first part of the body and into an interior engage the thread of the second part of the body.

At least one of the three body parts is advantageously generally flat or plate-shaped.

In certain cases it can also be advantageous if at least one nes of the three body parts is annular.

It is also advantageous if at least one of the three body parts made of Me tall, plastic, composite or the like.  

In an expedient embodiment of the invention Clamping device is at least the second and / or the third body part Provide a coating in the area of the respective clamping surface. This can be made of plastic, rubber, composite material or, for example the like exist.

The particular workpiece can also be plate-shaped or circular his.

In the dependent claims, further advantageous embodiments of the specified clamping device according to the invention.

The clamping device is particularly advantageous between a flange and a roller tube of a paper machine roller can be used.

The invention is un based on an embodiment ter explained in more detail with reference to the drawing.

In the drawing, the single figure shows a schematic partial representation of a clamping device 10 for fixing a workpiece 12 .

The clamping device 10 comprises a first and a second body part 14 or 16 , which are detachably connected to one another and form a workpiece holder 18 between them, into which a relevant section of the workpiece 12 can be inserted.

The second body part 16 has a clamping surface 20 against which the workpiece 12 can be pressed by acting on it by means of a further clamping surface 22 . This further clamping surface 22 is provided on a third body part 24 of the clamping device 10 .

As can be seen from the single figure, the third body part 24 also has an inclined surface 26 relative to the clamping direction K, with which it can be brought transversely to the clamping direction K with a complementary inclined surface 28 of the first body part 14 into contact. The third body part 24 is at least over a limited distance along the inclined surface 28 of the first body part 14 can be pushed ver.

The third body part 24 can be pressed against the first body part 14 generally transversely to the clamping direction K by means of an adjusting device 30 . The third body part 24 also experiences a movement component in the clamping direction K via the two inclined surfaces 26 , 28 , so that this third body part 24 is simultaneously pressed against the workpiece 12 , which results in a non-positive connection for transmitting external loads.

In the present embodiment the adjusting means comprises we nigstens a first body part 14 passing through and engaging in an internal thread 32 of the third body portion 24 fastening screw 30th This fastening screw 30 passes through the first body portion 14 at least in sections with at least present in the clamping direction K game, so that 30, the third Kör perteil 24 as a result of by the two inclined surfaces bewe 26, 28 motion component produced in the clamping direction K to the workpiece 12 side upon tightening of the fastening screw can.

The first and second body parts 14 and 16 can be connected to one another via at least one fastening screw 34 . This fastening screw 34 passes through the first body part 14 and engages in an inner thread 36 of the second body part 16 . The two body parts 14 , 16 are pressed against each other via parallel, in the clamping direction H erstrec kende surfaces 38 , 40 .

The three body parts 14 , 16 , 24 can be generally flat or plate-shaped or also annular.

You can for example made of metal, plastic, composite or the like exist.

The second and third body parts 14 and 24 can be seen ver at least in the loading area of the respective clamping surface 20 or 22 with a coating. Such a coating can consist, for example, of plastic, rubber, composite material or the like.

This clamping device 10 can advantageously be used between a flange and a roller tube of a paper machine roller. The workpiece 12 can thus be, for example, a roller tube that is connected to a flange via the clamping device according to the invention, which can be identical to the first body part 14 , for example.

LIST OF REFERENCE NUMBERS

10

clamping device

12

workpiece

14

first body part

16

second part of the body

18

Workpiece holder

20

clamping surface

22

further clamping surface

24

third part of the body

26

sloping surface

28

sloping surface

30

Actuator, fastening screw

32

inner thread

34

fixing screw

36

inner thread

38

area

40

area
K clamping direction

Claims (12)

1. Clamping device ( 10 ) for fixing a workpiece ( 12 ), with a first and a second body part ( 14 or 16 ), which are detachably connected to one another and between them form a workpiece holder ( 18 ), the second body part ( 16 ) has a clamping surface ( 20 ) against which the workpiece ( 12 ) can be pressed by means of a further clamping surface ( 22 ), which is provided on a third body part ( 24 ) of the device ( 10 ), which is also opposite of the clamping direction (K) has an inclined surface ( 26 ) with which it can be brought into contact transversely to the clamping direction (K) with a complementary inclined surface ( 28 ) of the first body part ( 14 ), along which it extends at least over a limited distance is slidable, and wherein said third body portion (24) generally transverse to the clamping direction (K) against the first body part (14) can be pressed by means of an adjusting device (30) to pass through the case over the sloping surfaces (28, 28) movement component generated in the clamping direction (K) to be simultaneously pressed Ge Gen the workpiece (12). 2. Clamping device according to claim 1, characterized in that the actuating device comprises at least one fastening screw ( 30 ) which penetrates the first body part ( 14 ) and engages in an internal thread ( 32 ) of the third body part ( 24 ) and which the first body part ( 14 ) interspersed at least in sections with at least in the clamping direction (K) existing game. 3. Clamping device according to one of the preceding claims, characterized in that the first and the second body part ( 14 and 16 ) via little least a fastening screw ( 34 ) can be connected to one another. 4. Clamping device according to claim 3, characterized in that the fastening screw ( 34 ) sets the first body part ( 14 ) through and engages in an internal thread ( 36 ) of the second body part ( 16 ). 5. Clamping device according to one of the preceding claims, characterized in that at least one of the three body parts ( 14 , 16 , 24 ) is generally flat or plate-shaped. 6. Clamping device according to one of the preceding claims, characterized in that at least one of the three body parts ( 14 , 16 , 24 ) is annular. 7. Clamping device according to one of the preceding claims, characterized in that at least one of the three body parts ( 14 , 16 , 24 ) consists of metal, plastic, composite material or the like. 8. Clamping device according to one of the preceding claims, characterized in that the second and / or the third body part ( 14 or 24 ) at least in the region of the respective clamping surface ( 20 or 22 ) is provided with a coating. 9. Clamping device according to one of the preceding claims, characterized in that the second body part ( 16 ) with the workpiece ( 12 ) on the clamping surface ( 20 ) is additionally glued. 10. Clamping device according to one of the preceding claims, characterized in that the second body part ( 16 ) and the workpiece ( 12 ) is provided with a coating. 11. Clamping device according to one of claims 8 to 10, characterized, that the coating of plastic, rubber, composite material or the like.   12. Use of the clamping device according to one of the preceding Claims between a flange and a roller tube Paper machine roll.