WO2021008850A1

WO2021008850A1 - Die cutting tool having processing module, stop clamp and connection clamp

Info

Publication number: WO2021008850A1
Application number: PCT/EP2020/067852
Authority: WO
Inventors: Heiko Schütze; Dietmar Roth; Alexander Seibold; Wilfried DANNENHAUER
Original assignee: Erni International Ag
Priority date: 2019-07-16
Filing date: 2020-06-25
Publication date: 2021-01-21
Also published as: DE102019119288A1

Abstract

The invention relates to a die cutting tool having a plurality of processing modules, which are arranged one behind the other on a base plate (31) in a first direction (x). The processing modules each have a die plate (12c–12e) having two longitudinal sides, which is arranged on a lower pressure plate (11c–11e), and at least one marking pin (17c–17e), which is arranged in an opening, which passes through the die plate (12c–12e) and the lower pressure plate (11c–11e). The two longitudinal sides each have at least one engaging recess on at least one of the ends thereof, which engaging recess is designed to receive an engaging element of a connection clamp (40). A tool pressure plate (32c) is arranged between every lower pressure plate (11c–11e) and the base plate (31). A processing module is fixed by the marking pin (17d) thereof in a cylinder hole of a tool pressure plate. Each additional processing module is fixed by the marking pin (17d, 17e) thereof in an elongate hole of a different tool pressure plate. The processing modules are connected to each other by connection clamps (40a–40d) in that in each case an engaging element of a connection clamp (40a–40d) engages in each engaging recess of a die plate (12c–12e).

Description

Punching tool with processing module, stop bracket and connecting bracket

The present invention relates to a processing module for a punching tool. The present invention also relates to a stop bracket and a connecting bracket, each of which can interact with the machining module. Finally, the present invention relates to a punching tool which has the processing module.

State of the art

Punching tools are used to make a punching strip from a metal strip using punching punches and cutting punches. For this purpose, they have several processing modules that are arranged in a superstructure. The metal strip or the punched strip is guided in the processing modules.

A processing module usually has an upper pressure plate, a stamp holding plate for receiving the pressure stamp and cutting stamp, a guide plate for guiding the metal strip or punching strip, a die frame or a die plate and a lower pressure plate. The die plate has a locking pin. By means of the locking pin that goes through the lower pressure plate, each processing module can be plugged abge on a base plate of the upper frame.

The position of the processing modules is therefore given by the base plate. However, this can lead to problems if the base plate has not been manufactured to the correct dimensions or has changed dimensionally in the course of the life cycle of the punching tool. In addition, it is necessary to stiffen the processing module with the base plate with additional screw connections. This process can lead to grid errors or other complications in production.

A processing module which is arranged between an upper frame part and a lower part Ge is described in DE 10 2018 001 438 A1.

DE 197 20 753 A1 describes a punching tool with modular elements that are inserted into a frame.

It is an object of the present invention to provide a punching tool that enables simple and accurate positioning of its processing modules. Another object of the present invention is to provide a processing module and elements for attaching the processing module for the punching tool.

Disclosure of the invention

This object is achieved in a first aspect of the invention by a processing module for a punching tool. This has a die plate with two long sides. The longitudinal sides are in particular longer than the transverse sides of the die plate. The die plate is on a lower pressure arranged plate of the processing module. Furthermore, the processing module has at least one locking pin. The locking pin is designed so that it is arranged in an opening that passes through the die plate and the lower pressure plate. Its length corresponds at most to the sum of the thickness of the die plate and the thickness of the lower pressure plate. It is slidably arranged in the through opening. This is preferably realized in that a further opening in the form of an elongated hole is seen orthogonally to this opening in the die plate. An operating element on the locking pin then extends into the slot-shaped opening and thus enables the locking pin to be moved in the opening in which it is guided. By moving the operating element towards the lower pressure plate, it is then possible to let a part of the locking pin protrude from the lower pressure plate so that it engages in another opening below the lower plate to position the processing module.

Both longitudinal axes each have at least one engagement recess at at least one of their ends. This is set up to receive an engagement element of a connecting bracket. Die plates of different processing modules can be connected to one another at their respective ends by means of connecting clips.

In one embodiment of the processing module, the two longitudinal sides each have two consecutive engagement recesses at one of their ends. This enables the connecting clip per die plate not only to engage in one engagement recess, but also in two engagement recesses, thus ensuring a particularly secure connection of the Matrizenplat th that withstands the loads during a standing process si cher. In this embodiment, it is preferred that a threaded hole extends orthogonally to the respective longitudinal side in the die plate between the two engagement recesses located one behind the other. If the connecting clip has been inserted into the engagement recesses of two adjacent die plates in order to connect them to one another, it can then be fixed to one of the die plates by screwing a screw through the connecting clip into the threaded hole.

In another embodiment of the processing module, the two longitudinal axes each have at least one engagement recess at their two ends, which is designed to receive an engagement element of a connecting clip. This makes it possible to connect the processing module to another processing module at two opposite ends.

In this embodiment of the processing module, it is preferred that both longitudinal sides each have two engagement recesses located one behind the other at their two ends, with a threaded hole running orthogonally to the respective longitudinal side in the die plate at one of the ends between the two engagement recesses. As already described for the embodiment of the processing module described above, two engagement recesses enable a particularly secure connection between the die plates and thus between the processing modules. By having a threaded hole at one end, a connecting bracket that connects the die plate at one end to a die plate of a first further processing module can be attached to this die plate by means of a screw, while a connecting bracket that connects the die plate to a die a second further processing module connects, is preferably screwed to this second further processing module. In all embodiments in which both longitudinal sides each have two intervening recesses located one behind the other or at their two ends, it is preferred that the respective terminal engaging recess has a rectangular cross section and the other engaging recess each have a trapezoidal cross section, in particular a right-angled one. Has trapezoidal cross-section.

A longitudinal side of the die plate preferably has at least one stop recess. This is set up to accommodate at least one stop element of a stop bracket. This enables the machining module to be positioned orthogonally to its long side by moving it towards a stop bracket until its stop element strikes the stop recess.

In a second aspect of the invention, the object is achieved by a stop clip for a punching tool. This has a base body through which several parallel openings pass along a first direction. These are each set up to accommodate a screw. This device can for example comprise an internal thread. Alternatively, however, an internal thread can also be dispensed with and the thread of the screw only engages in a base plate onto which the stop bracket is screwed. Furthermore, the device can include, for example, a recess for receiving a screw head. Alternatively, however, such a recess can also be dispensed with so that the screw head rests on top of the stop bracket. A securing area protrudes from the base body in a second direction orthogonal to the first direction. If the first direction is a vertical direction, along which a screw is screwed through the stop bracket into a base plate, so the fuse area jumps out horizontally. A security area is understood to mean an area that is designed to hold a plate, in particular a lower pressure plate, nes processing module to secure against movement in the direction of the security area. At least one stop element protrudes from the securing area in the second direction. This is set up to engage in a stop recess of the machining module according to the first aspect of the invention. In a dual function, the stop clamp enables the precise positioning of a machining module orthogonally to the longitudinal direction of its die plate by moving it towards the stop clamp in that direction until the stop element strikes in a stop recess and, on the other hand, securing the machining module in vertical direction by limiting movement of its lower pressure plate in the first direction. The stop bracket should not necessarily clamp the pressure plate in this case, but in particular only realize a backup in the first direction with a tolerance.

The stop bracket preferably has two stop elements. These can then in particular have an arcuate contour so that they have no stop surfaces, but only a single tangential stop point. If both stop elements strike with their stop points in a stop recess, precise positioning has been achieved.

In a third aspect of the invention, the object is achieved by a connec tion clip for a punching tool. This has three engagement elements which are set up to each engage in an engagement recess of a machining module according to the first aspect of the invention. They make it possible to connect two processing modules with each other when the ends of their die plates touch each other and a connection is made on both longitudinal sides by means of a connecting clip by engaging with their engagement elements in engagement recesses of the Matrizenplat th. Between two of the engagement elements an opening extends through the connec tion clip. This is set up to accommodate a screw. This device can comprise a recess for countersinking a screw head. While the connecting clip engages with engagement elements in engagement recesses of two neighboring die plates on the left and right in front of the opening, a screw can be screwed through the opening into a threaded hole in one of the die plates to secure the connecting clip in this position. The middle engaging element can, in particular, simultaneously engage in an engaging recess of both die plates. When these two engagement recesses are arranged at the end of the longitudinal side of the respective die plate and touch one another, they together form a larger engagement recess which can be filled by the central engagement element of the connecting bracket. The two outer engagement elements, however, engage in a gripping recesses, which are assigned to only one of the die plates.

It is particularly preferred that the middle engagement element has a rectangular cross-section and the outer engagement elements each have a trapezoidal cross-section, in particular a right-angled trapezoidal cross-section.

In a fourth aspect of the invention, the object is achieved by a punching tool. This has several processing modules according to the first aspect of the invention. These are arranged one behind the other along a first direction on a base plate of the punching tool. The first direction is the direction along which a metal strip or punched strip is passed through the punching tool. Between that lower pressure plate of a processing module and the base plate, which forms part of the frame of the punching tool, a tool pressure plate is arranged depending Weil. The tool pressure plates are designed so that one of the tool pressure plates, which can be arranged as the first several successive tool pressure plates, has a circular cylinder-shaped hole and each subsequent tool pressure plate has an elongated hole whose longitudinal direction corresponds to the first direction. The first machining module is fastened in the cylinder hole with its locking pin. This enables it to be positioned exactly in the first direction. Each additional processing module is fastened with its locking pin each Weil in the elongated hole of its associated tool pressure plate. This prevents a shift orthogonally to the first direction, while the respective machining module remains movable along the longitudinal direction of the elongated hole in the first direction.

The processing modules are connected to one another with connecting brackets, which have at least two engagement elements that are set up to each engage in an engagement recess of the processing module. For this purpose, one engaging element of a connecting bracket engages in each engaging recess of a die plate. This leads to a floating mounting of the processing modules, in which only the first processing module is precisely fixed in its position along the first direction. This makes it possible for the other processing modules to be able to adapt their position to tolerances of the base plate. Any positional errors can be compensated for by replacing individual connecting brackets with differently dimensioned connecting brackets that change the position of the other processing modules along the first direction.

If the punching tool is to have at least three processing modules, then it is preferred that it contains three different embodiments of the processing module according to the first aspect of the invention.

A first processing module has a die plate that only one end of its long sides each has two consecutive A gripping recesses, with a threaded hole between them running orthogonally to the respective long side. At least one two-th processing module has two consecutive engagement recesses at both ends of the long sides of its die plate, with a threaded hole extending orthogonally to the respective longitudinal side in the die plate at one of the ends between these. A third processing module again has engagement recesses only at one end of the longitudinal sides of its die plate, whereby threaded holes can be dispensed with. The first machining module is connected to a second machining module by connecting clips according to the third aspect of the invention in such a way that a screw passes through each connecting clip into the first machining module. The third processing module is connected to a second processing module by connecting brackets according to the third aspect of the invention in such a way that a screw goes through each connecting bracket into every second processing module. If the punching tool has more than three processing modules, several second processing modules follow one another and are connected to one another with connecting brackets according to the third aspect of the invention that a screw in one of the second processing modules passes through each connecting bracket.

In order to enable the processing modules to be positioned precisely in the punching tool, it is preferred that the processing modules are arranged such that all stop recesses are located on a first side of the punching tool. This first side runs parallel to the first direction. Stop clips according to the second aspect of the invention are arranged on the base plate in such a way that at least one stop element of a stop clip strikes in each stop recess. Each securing area of a stop bracket limits a movement of the lower pressure plate of a machining module from the tool pressure plate of the respective machining module in the direction of the securing area. So it is possible to assemble the punching tool by aligning the processing modules with their stop recesses on the stop clamps of a punching tool in which the stop clamps and the tool pressure plates have already been attached to the base plate and then pushing them orthogonally to the first direction into a punching tool until the Hit stop elements in stop recesses. A movement of the lower pressure plates of the processing modules in the direction of the securing areas of the stop clamps is limited. By now moving the locking pin of the first machining module into the cylinder hole and moving the locking pins of all other machining modules into their respective elongated hole, the machining modules are defined orthogonally to the first direction.

To further secure the processing modules in the punching tool, it is preferable that it has fastening clips which are arranged on a second side opposite the first side. Each fastening bracket is attached to the base plate and limits a movement of a lower pressure plate of a machining module from the respective tool pressure plate in the direction of a securing section of the fastening clip mer. After the processing modules have been introduced into the punching tool in the manner described above, the fastening brackets can be attached to the base plate. While the first machining module is so precisely defined by inserting its locking pin into the cylinder hole that a mounting bracket can be dispensed with, it is preferred that each additional floating mounting module whose locking pin engages in an elongated hole is at least by means of is secured with a mounting bracket. The first processing module is screwed on its front side in particular with several cylinder screws on the base plate.

Each elongated hole has two first areas with a semicircular cross section and a second area with a rectangular cross section, the connects the first two areas. In order, on the one hand, to enable floating mounting of the processing modules and, on the other hand, to prevent undesirably high tolerances in the first direction, it is preferred that a length of the first areas in the first direction is greater than the length of the second area in the first direction.

Brief description of the drawings

Exemplary embodiments of the invention are shown in the drawings and are explained in more detail in the following description.

FIG. 1 shows an isometric representation of a processing module according to the prior art.

FIG. 2 shows an isometric view of a die plate and a lower pressure plate of a processing module according to the prior art.

FIG. 3 shows in a plan view how two die plates and two lower pressure plates of two processing modules of the prior art are arranged on a base plate of a punching tool.

FIG. 4 shows an isometric illustration of a processing module according to an exemplary embodiment of the invention.

Figure 5a shows an isometric view of a connecting clip according to an embodiment of the invention.

Figure 5b shows a side view of the connecting clip according to Figure 5a.

Figure 6 shows an isometric view of a stop bracket according to an embodiment of the invention. Figure 7 shows an isometric view of a mounting bracket used in an embodiment of the invention.

FIG. 8 shows a plan view of the die plates and lower pressure plates of several processing modules which, in one embodiment of the invention, are arranged on a base plate of a punching tool. This view also shows the lower part of the module with the lower part of the superstructure.

FIG. 9 shows an isometric illustration of a punching tool according to an exemplary embodiment of the invention.

FIG. 10 shows a plan view of an elongated hole in a tool pressure plate which is used in a punching tool according to an exemplary embodiment of the invention.

Embodiments of the invention

A conventional processing module 10, which is provided for use in a punching tool, is shown in FIG. It has a lower pressure plate 11 on its underside. A die plate 12, which can also be referred to as a die frame, is arranged on this. It is just as long as the lower pressure plate 11, but narrower so that the lower pressure plate 11 protrudes beyond the die plate 12 on its long sides. A guide plate 13, a punch holding plate 14 and an upper pressure plate 15 are arranged one after the other on the die plate 12. While the length and width of the guide plate 13 and the punch holding plate 14 each correspond to the corresponding dimensions of the die plate 12, the upper pressure plate 15 corresponds in length and width to the lower pressure plate 11. The guide plate 13 and the punch holding plate 14 are connected to one another by means of holding clips 16a, 16b. A locking pin 17 is arranged in a circular cylinder-shaped opening, wel surface through the lower holding plate 1 1 and the die plate 12 passes. A slot-shaped opening extends from a longitudinal side of the Matri zenplatte 12 into the cylindrical opening and makes it possible from this longitudinal side to move the locking pin vertically. To this end, an operating element of the locking pin 17 extends into the elongated hole, which can be manipulated with a hexagon wrench, for example.

FIG. 2 shows how the processing module 10 is positioned in a conventional manner on a base plate of a punching tool. Here, only the lower pressure plate 1 1 and the die frame 12 of the processing module 10 are shown. The processing module 10 is orthogonal to the longitudinal sides of the die plate 12, which are longer than their transverse sides, pushed into an over frame of the punching tool until it strikes two stop pins 20 which are attached to the base plate. For this purpose, recesses are provided in the lower pressure plate 11 and the die plate 12. As soon as the processing module 10 has been positioned in this way, its locking pin 17 is extended vertically into a cylindrical hole (not shown) in the base plate, so that the processing module can no longer be moved in the plane of the base plate. Then it is screwed to the base plate by means of six screws, which are rotated in the areas of the lower pressure plate 11 through these surfaces, which protrude beyond the die plate 12.

As shown in FIG. 3, the punching tool has several processing modules, which are arranged with their lower pressure plates 11a, 11b and die plates 12a, 12b on the base plate 31 of the punching tool. They are positioned by means of stop pins 20 and they are secured in their respective positions by means of their locking pins 17a, 17b. Each of the lower pressure plates 11 a, 11 b is then screwed tightly to the base plate 31 by means of screws 21, there being no possibility of compensating for tolerances. A processing module according to an exemplary embodiment of the invention is shown in FIG. This differs from the conventional processing module 10 according to FIG. 1 in that engagement recesses 121 to 124 are provided in the longitudinal sides of its matrix plate 12. At that end of a longitudinal side there are two engagement recesses 121, 122 and 123, 124 one behind the other. The end engagement recess 121, 124 closes with the end of the die plate 12 and has a rectangular cross section. If two such processing modules 10 are arranged side by side, the end recess 121 of a processing module 10 forms with the end recess 124 of the adjacent processing module 10 a larger engaging recess which continues to have a rectangular cross section. The further engagement recesses 122, 123 each have a right-angle lig trapezoidal cross-section. The side of each engagement recesses 122, 123 forms the engagement recesses 121,

124 is turned away, with the longitudinal side of the die plate 12 in each case a right angle, while its opposite side is beveled relative to the longitudinal side. Between the two engagement recesses 121, 122 and 123, 124 at each end of the processing module 10 ver each has a threaded hole 125, 126 orthogonally to the longitudinal direction of the die plate 12 into this. The machining module 10 according to this exemplary embodiment of the invention has four engagement recesses 121 to 124 both on the longitudinal side shown in FIG. 4 and on the opposite longitudinal side, which is not visible. The opposite longitudinal side, which is not visible, also has a stop recess with a rectangular cross section, which is located between the engagement recesses 121, 122 at one end of the longitudinal side and the engagement recesses 123, 124 at the other end of the longitudinal side. This is described in more detail below. A connecting clip 40, which is provided to connect two processing modules 10, as shown in FIG. 4, to one another, is shown in FIGS. 5a and 5b. It has a cuboid base body 41, on one side of which a handle 42 is arranged. On the opposite side, it has three engagement elements 43, 44, 45. These protrude from the base body 41 so that recesses 46, 47 remain free between them. These each have a right-angled trapezoidal cross-section. The two outer engagement elements 43, 45 each also have a right-angled trapezoidal cross-section. Their dimensions are complementary to the rectangular-trapezoidal engaging recesses 122, 123 of the machining module 10. The middle engaging element 44 has a width a which corresponds to the sum of the widths of the two end-standing engaging recesses 121, 124 of the machining module 10 and in this case, for example, 16, 00 mm. The distance b of the points at which the two horizontally extending edges of the recesses 146, 147 in FIG. 5b merge into the respective inclined side of the outer engagement elements 43, 45 is, for example, 35.88 mm. The angle a of these inclined sides is in the present case, for example, 30 °. Between an outer engaging element 43 and the central engaging element 44, an opening 48 runs through the base body 41 and ends in one of the recesses 46. It is designed to receive a screw and for this purpose has an area for receiving a screw head.

Figure 6 shows a stop bracket 50 according to an embodiment of the invention. This has a base body 51 through which three parallel openings 52-54 for receiving screws and / or cylinder pins pass along a z-direction. The central opening 54 has a widening for receiving the screw head. A securing area 55 projects in a y-direction. From this, in turn, two stop elements 56, 57 project in the y direction, each of which has a circular arc-shaped contour. Figure 7 shows a mounting bracket 60 for use in a punching tool according to an embodiment of the invention. This has a main body 61 with three parallel openings 62 - 64, which are provided for receiving screws and / or cylinder pins. A hedging section 65 projects orthogonally to the longitudinal axis of the parallel openings from the base body 61. It corresponds in its function to the hedging area 55 of the stop bracket 50. The distance between the underside of the base body 61 and the underside of the securing portion 65 has the same length as the distance between the underside of the base body 51 of the stop bracket 50 and the underside of their safety device Reichs 55. The stop bracket 50 and the fastening bracket 60 make it possible to secure a plate of constant thickness from different sides.

FIG. 8 shows how three processing modules 10c-10f are arranged on a base plate 31 of a punching tool 30 according to an exemplary embodiment of the invention. As in FIG. 3, only the lower pressure plates 11c-11e and the die plates 12c-12e of the processing modules 10c-10f are shown for the sake of simplicity. A tool pressure plate 32c-32e is screwed onto the base plate 31 between the base plate 31 and each lower pressure plate 11c-11e. The processing modules 10c-10e are first pushed in the y-direction against stop clamps 50a-50d already screwed to the base plate 31 such that the stop elements 56, 57 of the stop clamps 50a-50d each strike in stop recesses in the die plates 12c-12e. The first die plate 12c has two stop recesses 127c, 128c, while the further die plates 12d, 12e each have only one stop recess 127d, 127e. As soon as the machining modules 10c-10e have been positioned in this way, their stop pins 17c-17e are extended into openings in the tool pressure plates 32c-32e. The first tool pressure plate 32c has an opening in the form of a cylinder hole, while the white direct tool pressure plates 32d, 32e openings in the form of elongated holes exhibit. These elongated holes enable all further processing modules 10d, 10e to be moved in the x direction. The die plates 12c-12e are now connected to one another by means of connecting clips 40a-40d. End engagement recesses 121, 124 of the die plates 12c-12e each jointly form a large engagement recess into which a central engagement element 44 of one of the connecting brackets 40a-40d engages. Further engagement elements 43, 45 of the connecting brackets 40a-40d each engage in the further engagement recesses 122, 123. The connecting brackets 40a, 40c, which connect the first die plate 12c to the second die plate 12d, are each fastened to the first die plate 12c by means of screws. The connecting brackets 40b, 40d, which connect the second die plate 12d to the third die plate 12e, are each secured in the second die plate 12d by means of screws.

The securing areas 55 of the stop clamps 50a - 50d each limit a movement of the respective lower pressure plate 11c - 1 1e from its respective tool pressure plate 32c - 32e in the direction of the securing areas 55. On the side of the processing modules 10c - opposite the stop clamps 50a - 50d. 10e, a fastening bracket 60a, 60b is now attached to the respective lower pressure plate 11d, 11e of the second and third processing module 10d, 10e in order to limit movement away from its respective tool pressure plate 32d, 32e on that side as well. Here, the tolerance between the lower pressure plates 11 c-11 e and the securing areas 55 of the stop clamps is 0.02 mm each. As shown in FIG. 9, the complete punching tool 30 can be closed after the processing modules 10c-10e have been inserted, in that connecting elements 34 are fastened to the pressure plate 31 on the side facing the fastening clips 60a, 60b. A metal strip 70 can now be introduced into the punching tool 30 in order to leave it as a processed punched strip. Even when the processing modules 10c-10e are installed, any subsequent tolerances can be compensated for by replacing individual connecting brackets 40a-40d with connecting brackets with slightly different dimensions. For example, it can be replaced by a connecting bracket in which the distances a and b differ by 0.01 millimeters in each case from the replaced connecting bracket. This makes use of the fact that, with the exception of the first processing module 10c, all further processing modules 10d, 10e are movable in the x direction through the elongated holes in their tool pressure plates 32d, 32e. Such an elongated hole 33 is shown in FIG. 10. It has two areas 331, 332 with a semicircular cross section, the length of which in the x direction has a radius of 6.00 mm in the value c. They are connected by a region 333 with a rectangular cross section, the length d of which is 0.05 mm.

Claims

Expectations

1. Processing module (10, 10d - 10e) for a punching tool (30), having a die plate (12) with two long sides, which is arranged on egg ner lower pressure plate (1 1), and at least one locking pin (17), the is arranged in an opening which passes through the die plate (12) and the lower pressure plate (1 1), characterized in that both longitudinal sides each have at least one engagement recess (121-124) at at least one of their ends, which are intended to receive an engagement element (43-45) a connecting bracket (40) is set up.

2. processing module (1 Oc, 10e) according to claim 1, characterized

shows that both longitudinal sides each have two engagement recesses (121-124) lying one behind the other at one of their ends.

3. processing module (10c, 10e) according to claim 2, characterized

shows that between the two one behind the other gripping recesses (121-124) a threaded hole (125, 126) runs orthogonally to the respective longitudinal side in the die plate (12).

4. Processing module (10, 10d) according to claim 1, characterized in that both longitudinal axes each have at least one engagement recess (121-124) at their two ends, which is used to receive an engagement element (43-45) of a connecting clip (40 ) is set up.

5. machining module (10, 10d) according to claim 4, characterized in that both longitudinal sides each have two engagement recesses (121-124) lying one behind the other at their two ends, wherein at one of the ends between the two engagement recesses, a threaded hole (125, 126) runs orthogonally to the respective longitudinal side in the die plate (12).

6. machining module (10, 10c - 10e) according to one of claims 1 to 5, characterized in that one longitudinal side has at least one stop recess (127c - 127e, 128c) which is designed to at least one stop element (56, 57) a stop clip (50).

7. Stop clamp (50) for a punching tool (30), having a base body (51) through which several parallel openings (52 - 54) pass along a first direction (z), each of which is designed to receive a screw, a securing area ( 55), which projects in a second direction (y) orthogonal to the first direction (z) from the base body (51), and at least one stop element (56, 57) which extends from the securing area (55) in the second direction (y ) protrudes and is set up to engage in a stop recess (127c-127e, 128c) of a machining module (10) according to one of claims 1 to 5.

8. stop clip (50) according to claim 7, characterized in that it has two stop elements (55, 56).

9. Connecting clip (40) for a punching tool (30), comprising three engagement elements (43-45) which are designed to each grip into a recess (121-124) of a processing module (10) according to one of claims 1 to 5 to intervene, between two of the gripping elements (43, 44) an opening (48) through the connecting clamp mer (40) which is directed to receive a screw is.

10. punching tool (30) having a plurality of processing modules (10c - 10e) according to one of claims 1 to 6, which are arranged along a first direction (x) one behind the other on a base plate (31), where between each lower pressure plate (1 1 ) of a processing module (10c-10e) and the base plate (31) each have a tool pressure plate (32c-32e) arranged, a machining module (1 Od) is fastened with its locking pin (17d) in a cylinder hole of a tool pressure plate (32c) and each further machining module (10d , 10e) is fastened with its locking pin (17d, 17e) each in an elongated hole (33) on the tool pressure plate (32d, 32e) thereof, and the processing modules (10c-10e) are connected to one another with connecting clamps (40) which have at least two engaging elements (43 - 45) which are designed to each engage in an engaging recess (121-124) of the machining module (10) by inserting a die plate (12) into each engaging recess (121-124) in each case one engaging element (43-45) of a connecting bracket (40) engages.

1 1. Punching tool (30) according to claim 10, characterized in that it has a first processing module (10c) according to claim 3, at least one second processing module (10d) according to claim 5 and a third processing module (10e) according to claim 1 or 2, the first Processing module (10c) with a second processing module (10d) is connected by connecting brackets (40) according to claim 9 that a screw passes through each connecting bracket (40) into the first processing module (10c) and the third processing module (10e) with it a second processing module (10d) is connected by connecting brackets (40) according to claim 9, that a screw passes through each connecting bracket (40) into that second processing module (10c).

12. punching tool (30) according to claim 10 or 1 1, characterized in that it has processing modules (10c-10e) according to claim 6, which are arranged so that all stop recesses (127c-127e, 128c) on a first Side of the punching tool (30) are located, wherein stop clips (50) according to claim 7 or 8 are arranged on the base plate (31) that in each stop recess (127c-127e, 128c) at least one stop element (56, 57) of a stop clip (50) strikes.

13. Punching tool (30) according to claim 12, characterized in that it has fastening clips (60) which are arranged on a second side opposite the first side, each fastening clip (60) being fastened to the base plate (31) and one Be movement of a lower pressure plate (1 1 c - 1 1 e) of a processing module (1 Oc - 10e) limited by the respective tool pressure plate (32c - 32e) in the direction of a securing section (65) of the mounting bracket (60).

14. Punching tool (30) according to one of claims 10 to 13, characterized in that each elongated hole (33) has two first areas (331, 332) with a semicircular cross-section and a second area (333) with a rectangular cross-section, one length (c) the first areas (331, 332) is in each case greater than the length (d) of the second area (333).