Radial press

Abstract

A radial press is provided with a base structure, a pressing tool accommodated therein and a drive unit. The pressing tool comprises a number of base jaws which are arranged about a press axis and can be moved by the drive unit towards or away from the press axis in a synchronous manner and radially in relation to said press axis, and substantially wedge-shaped press-jaw heads can be exchangeably attached to the base jaws. A plurality of press-jaw head sets is stored in an associated magazine, the press-jaw head sets being for different press diameters. The press-jaw heads have two markings on at least one axial end side directly adjacent to both wedge surfaces. In addition, the two respective opposing markings of two neighboring press-jaw heads are aligned with one another. Markings that are different from one another are provided for different press-jaw head sets.

Claims

1. A plurality of sets of press-jaw heads for a radial press comprising: a first set of several substantially wedge-shaped press-jaw heads; and a second set of several substantially wedge-shaved press-jaw heads, wherein, when used in a press die, several substantially wedge-shaped press-jaw heads of a set of press-jaw heads are disposed around a press axis (1), and wherein, each set of the plurality of sets of press-jaw heads are matched to different press diameters, wherein, when used in a press die, each of the press-jaw heads (2) of the first set have two markings (8) on at least one substantially wedge-shaped end face (7) directly adjoining two wedge faces (6) of neighboring press-jaw heads, wherein two oppositely disposed markings (8) of neighboring press jaw heads (2) are respectively aligned with one another, and wherein, furthermore, markings (8) that are different from those of the first set are provided for the second set of press-jaw heads.

2. The plurality of sets of press-jaw heads of claim 1, wherein the markings (8) of each of the press-jaw heads (2) of the first set of several substantially wedge-shaped press-jaw heads are constructed identically to one another.

3. The plurality of sets of press-jaw heads of claim 2, wherein the markings (8) of the first set of press-jaw heads differ from the markings of the second set of press-jaw heads, at least with respect to a radial distance to a contact face (3) at an outer circumference of the set of press jaws when used in a press die.

4. The plurality of sets of press-jaw heads of claim 2, wherein the two markings (8) of each press-jaw head are respectively part of a linear or curvilinear marking (11) that extends at least substantially between the two wedge faces (6).

5. The plurality of sets of press-jaw heads of claim 4, wherein the linear or curvilinear markings (11) respectively extend continuously from one wedge face (6) to the other, and so, when in use in a press die, the set of press-jaw heads are compressed together and a continuously closed marking line is visible at the end faces of the respective press-jaw heads.

6. The plurality of sets of press-jaw heads of claim 4, wherein the linear or curvilinear markings (11) comprise groove-like depressions machined into the end faces (7) of the respective press-jaw heads (2).

7. The plurality of sets of press-jaw heads of claim 4, wherein the linear or curvilinear markings (11) comprise raised ridges disposed on the end faces (7) of the respective press-jaw heads (2).

8. The plurality of sets of press-jaw heads of claim 4, wherein the linear or curvilinear markings (11) are constructed substantially as curvilinear circular-arc segments.

9. The plurality of sets of press-jaw heads of claim 2, wherein the markings (8) of the individual sets of press-jaw heads respectively have a substantially similar radial distance (x) to a press face (10).

10. The plurality of sets of press-jaw heads of claim 2, wherein the markings (8) of the first set of press jaw heads (2) for a first press diameter have a larger radial distance (a) to a press face (10) than the markings of the second set of press-jaw heads (2) for a second press diameter smaller than the first press diameter.

11. The plurality of sets of press-jaw heads of claim 1, wherein the markings (8) of the a first press-jaw head (2) of the first set of press-jaw heads is constructed or located differently from the markings of a second press-jaw head of the first set of press jaw heads.

12. The plurality of sets of press-jaw heads of claim 11, wherein the markings (8) of each press-jaw head (2) are respectively part of a curvilinear marking (11) extending continuously from one wedge face (6) of one press-jaw head to a wedge face of a second press-jaw head, and so, when in use in a press die, the set of press-jaw heads are compressed together and a marking line extending over all press-jaw heads (2) is visible in the end faces.

13. The plurality of sets of press-jaw heads of claim 1, wherein the press-jaw heads (2) have two markings (8) on each of two wedge shaped end faces (7) immediately adjacent both wedge faces, wherein the corresponding markings (8) of neighboring press-jaw heads (2) are respectively aligned with one another on each of the two corresponding end faces.

14. The plurality of sets of press-jaw heads of claim 11, wherein the markings (8) of the press-jaw heads are respectively constructed or located differently at the two end faces.

15. The plurality of sets of press-jaw heads of claim 1, wherein the markings (8) of the individual sets of press-jaw heads are distinguished from one another by color.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) The present invention will be explained in more detail hereinafter on the basis of several preferred exemplary embodiments. In this connection

(2) FIG. 1 shows, in an overhead view of the end face, a set of press-jaw heads according to a first embodiment of the invention, erroneously set up with one undersized press-jaw head,

(3) FIG. 2 shows, in an overhead view of the end face, a set of press-jaw heads according to a second embodiment of the invention, likewise erroneously set up with one undersized press-jaw head,

(4) FIG. 3 shows, in an overhead view of the end face, a set of press-jaw heads according to a third embodiment of the invention, erroneously set up with one undersized press-jaw head as well as with one oversized press-jaw head, and

(5) FIG. 4 shows, in an overhead view of the end face of a correctly set-up set of press-jaw heads according to a fourth embodiment of the invention, in compliance with a specified arrangement of the press-jaw heads.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

(6) Because, depending on their type, radial presses on which the present invention can be implemented have long been knownat least to the persons skilled in this particular artthe illustration of the exemplary embodiments will be limited to the respective set of press-jaw heads erroneously set-up in FIGS. 1 to 3 respectively.

(7) FIG. 1 illustrates eight wedge-shaped press-jaw heads 2, which are disposed around press axis 1, and which, for their exchangeable attachment to the eight base jaws of the respective radial press, are respectively equipped on their radial outer face 4forming the face of contact 3 with the associated base jawwith a snap-in pin 5. These press-jaw heads 2 are illustrated in that configuration that they occupy with maximally closed press die, in which, in particular, the wedge faces 6, respectively disposed opposite one another, of two neighboring press-jaw heads are in contact with one another.

(8) At the illustrated axial end faces 7, press-jaw heads 2 respectively have, on the two wedge faces 6, two directly adjoining markings 8. These markings 8 have the same distance x to each edge 9, at which wedge faces 6 in question and press face 10 of press-jaw 2 in question respectively abut against one another. In this way the oppositely disposed markings 8 of two identically constructed press-jaw heads 2 belonging to the same set of press-jaw heads are respectively in alignment. However, an offset V exists between markings 8 of two press-jaw heads 2 that do not belong to the same set of press-jaw heads. This corresponds to difference U in specified press radius, but is more obvious.

(9) According to FIG. 2, the two adjoining markings 8 of each press-jaw head 2 on the wedge faces in question are respectively part of a linear marking 11 that extends continuously between the two wedge faces 6. This marking line 11 is constructed as a circular-arc segment and, in fact, is concentric with press axis 1. For particularly marked obviousness of an erroneous setup, markings 8 (and accordingly marking lines 11) of press-jaw heads 2 for a larger press diameter have a larger distance a to press face 10 here than press-jaw heads 2 for a smaller press diameter. Thus offset V of marking lines 11 of two neighboring press-jaw heads 2, which do not belong to the same set of press-jaw heads, is correspondingly larger and more obvious than the difference U of press faces 10 relative to one another.

(10) FIG. 3 illustrates the possibility that marking lines 11 of press-jaw heads 2 that belong to different sets of press-jaw heads differ obviously from one another in terms of shape.

(11) In the embodiment illustrated in FIG. 4, the two markings 8 provided at the end face on all press-jaw heads 2 are again part of a linear marking 11 respectively extending continuously from one edge face 6 to the other. However, linear markings 11 of the individual press-jaw heads 2 are not identical here, but to the contrary are constructed differently from one another. It is only in the correct arrangement of the eight press-jaw heads 2 shown in FIG. 4 that linear markings 11 of press-jaw heads 2 together form (when the press die is completely closed) a continuous marking line that extends over all press-jaw heads 2. In contrast, in each of the assemblies of press-jaw heads 2 differing from the specified arrangement, the marking line is discontinuous, as in the case of an erroneous setup.

(12) Obviously it is possible, in all illustrated and explained improvements, to achieve additional obvious differentiability, either by different coloration of the marking lines of different press-jaw heads and/or by constructing the marking lines as depressed grooves or raised ridges.