DE102011108987A1 - Method for cupping work piece by tool, particularly hand tool, involves providing opening in cupping step with work piece, where cup die-plate is arranged on side of work piece in another cupping step - Google Patents

Abstract

The method involves providing an opening (3) in a cupping step with a work piece (2). A cup die-plate (4) is arranged on a side (10) of the work piece in another cupping step. A processing tool (5) is provided on another side (20) of the work piece opposite to the former side in an area of the opening (3) in a third cupping step. An operating cylinder (6) of the processing tool is fastened on the cup die-plate. Independent claims are included for the following: (1) a method for pressing a riveting fastener; (2) a tool, particularly a hand tool; and (3) a work piece with a cupping area.

Description

State of the art

The present invention is based on a method for cupping a workpiece according to the preamble of claim 1. Furthermore, the invention proceeds from a method for pressing in a rivet element according to the preamble of claim 6. The invention further relates to a tool and a workpiece.

It is generally known to press in press-in nuts in openings of workpieces. For example, such a press-in nut from the document DE 33 27 751 C2 known. In this case, first the press-in nut is inserted into an opening of the workpiece and then a tool with a rotating threaded mandrel is threaded into the internal thread of the press-in nut. As soon as the outer nose portion of the tool comes into contact with the press-in nut, the permanent rotation of the threaded mandrel exerts an axial force on the press-fit nut body in the direction of the nose portion, thereby deforming the press-fit nut body and thus compressing the press-fit nut in the opening of the workpiece. The disadvantage here is the risk that the press-in nut starts to rotate together with the threaded mandrel and thus no axial force is exerted on the Einpressmutterkörper.

Alternatively, from the document EP 0 539 793 B1 known to first gag the workpiece in the region of the opening by means of a forming die and then press the press-in nut by means of a pneumatic press into the opening. For the cupping, the workpiece is clamped in the region of the opening between a cup punch and a cup chamfer and then the cup punch and the cup chamfer are pressed against one another in the axial direction (cf. 1a to 1c ). For pressing in the press-fit nut, the press-in nut is arranged on a press-in die and the workpiece is clamped in the region of the opening between the press-fit die fitted with the press-in nut and an insert press, whereby the press-fit die and the press-in punch are subsequently pressed against one another in the axial direction (cf. 1d to 1f ). The disadvantage of this is that the workpiece must be accessible from both sides in the axial direction for the tools, so that a sufficient cup or press-in pressure can be achieved in the axial direction. In the case of hollow profiles, for example, an access opening in the workpiece must be produced on an opposite side of the opening, through which the cup die or the press-in die is fed in the axial direction.

Disclosure of the invention

It is an object of the present invention to provide a method for cupping a workpiece that is simpler, faster and less expensive to perform compared to the prior art.

This object is achieved with a method for gobbling a workpiece with the method steps: providing a workpiece having an opening in a first gobping step; Arranging a cup die on a first side of the workpiece in a second cupping step; Providing a machining tool on a second side of the workpiece opposite the first side in the region of the opening in a third seeding step; Attaching a working cylinder of the machining tool to the chalice die or to an adapter element located in contact with the chalice mold in the region of the opening until a chalice punch of the machining tool comes into contact with the second side or a defined clamping force between the chalice punch and the chalice mold is achieved in a fourth chaling step ; and generating a translational relative movement between the working cylinder and the cup punch extending along an axial direction of the working cylinder for cupping the workpiece by means of the cup die in a fifth cupping step.

In the method according to the invention for cupping the workpiece, advantageously only one-sided access in the axial direction to the opening formed in the workpiece is necessary. In contrast to the prior art, therefore, no two-sided access is required in each case in the axial direction, so that a method step for forming an additional access opening in a workpiece designed as a hollow body can be completely eliminated. As a result, the method according to the invention can be carried out considerably more quickly and cost-effectively compared with the prior art. In addition, the stability of the workpiece is not affected by an additional access opening. Furthermore, a Vorelchen such workpieces is possible, where no access opening can be formed in the axial direction, for example, if on the opposite side a weld extends or necessary stiffening elements are arranged in the interior of the workpiece. The attachment of the working cylinder to the cup die or the adapter element is done for example by writing the cylinder through the opening in a recording of the cup die and by attaching by means of a latching and / or clamping closure (eg locking by a bayonet lock or terminals by Festzeihen a laterally introduced grub screw on the goblet or on the adapter element). It is also conceivable, of course, that in the opposite way an extension of the cup die or the adapter element protrudes through the opening and is fixed in a similar manner in a receptacle of the working cylinder. It is preferably provided that for fastening in the fourth seeding step, a first thread of the working cylinder is spindled into a second thread of the cup die or of the adapter element until the cup punch comes into contact with the second side or a defined clamping force is achieved between the cup punch and the cup die. The goblet is preferably introduced laterally on the first side in the region of the opening, wherein due to the unwinding of the working cylinder in the goblet still a comparatively large force can be exerted in the axial direction. Since the working cylinder performs only a translatory relative movement in the axial direction during the cupping operation relative to the cup punch, there is also no risk that is affected by a rotation of the cup die of the cupping or the workpiece undergoes damage.

Advantageous embodiments and modifications of the invention are the dependent claims, as well as the description with reference to the drawings.

According to a preferred embodiment, it is provided that in the second seeding step, a sewer provided with an internal thread is arranged on the first side, wherein in the third seeding step designed as a threaded spindle working cylinder is inserted from the second side into the opening and wherein in the fourth seeding step, the threaded spindle is spindled into an internal thread of the goblet or the adapter element. Advantageously, engages in the third seeding step, the threaded spindle in the internal thread of the cup die, so that in the fifth cup step of the threaded spindle an axially aligned force can be exerted on the cup die. The internal thread of the chalice mold can also be easily arranged under the opening, for example by a lateral insertion (parallel to the main extension plane) of the chalice mold. Alternatively, it is conceivable that the cup die only has a through hole arranged below the opening and that on a side facing away from the workpiece of the cup die (in particular below the cup die) is provided with an internal threaded adapter element, wherein the threaded spindle through the opening and the through hole is guided to the adapter element and there is spindled into the internal thread. In this configuration, the cup die is then subjected to force during the fifth cupping step by the adapter element in the direction of the workpiece.

According to an alternative preferred embodiment, it is provided that in the second seeding step, a pull cylinder of the cup die provided with an external thread is introduced into the opening from the first side and wherein in the third seeding step a working cylinder designed as a hollow cylinder provided with an internal thread is arranged on the second side and wherein in the fourth seeding step, the hollow cylinder is spindled onto the draw cylinder. In this configuration, the power cylinder has no threaded spindle with an external thread, but instead a hollow cylinder with an internal thread. On the other side, the chalice die has a pull cylinder provided with an external thread, wherein the hollow cylinder is spindled onto the external thread of the pull cylinder in the third chalice step. In the second seeding step, the cup die is preferably first inserted laterally (parallel to the main extension plane) under the region of the opening, so that the pull cylinder is arranged below the opening, and then moved in the direction of the workpiece, so that the pull cylinder from the first side through the Opening is performed.

According to an alternative preferred embodiment, it is provided that the cup die is arranged by moving the cup die along a direction parallel to the main extension plane of the workpiece in the region of the opening on the first side of the workpiece. Advantageously, therefore, the gobbling of a hollow workpiece, for example in the form of a hollow cylinder or a profile strand, allows, since the goblet is simply inserted laterally. In this way, in contrast to the prior art in particular also such workpieces to kelchen on which no access opening can be formed in the axial direction, for example, if on the opposite side a weld runs or necessary stiffening elements are arranged inside the workpiece.

According to an alternative preferred embodiment, it is provided that in the fifth seeding step of the working cylinder relative to the cup punch exclusively a translational movement along the axial direction and in particular no rotational movement about an axis parallel to the axial axis of rotation is performed and wherein the cup of the working cylinder relative to the cup die or Adapter nut is held in particular in a rest position. In an advantageous manner, therefore, no torque is exerted both on the cup die and on the punch-in punch during the fifth cupping step. In contrast to the prior art is thus not the Danger that the cupping operation is affected by a rotation of the cup die or the press-in punch or that the surface of the workpiece is damaged by a rotation of the cup die or of the press-in punch relative to the workpiece.

A further subject of the present invention is furthermore a method for pressing in a rivet element into a workpiece, in particular by means of a method according to one of the preceding claims, comprising the pressing steps: providing a workpiece having an opening in a first pressing step; Arranging the rivet element on a first side of the workpiece in the region of the opening in a second pressing step; Providing a machining tool on a second side of the workpiece opposite the first side in the region of the opening in a third pressing step; Attaching a working cylinder of the machining tool to the rivet element or to an adapter element located in contact with the rivet element in the region of the opening until an insertion punch of the machining tool comes into contact with the second side or a defined clamping force between the press-in punch and the rivet element is achieved in a fourth pressing step; and generating a translational relative movement between the working cylinder and the press-in punch extending along an axial direction of the working cylinder for press-fitting the rivet element into the workpiece in a fifth pressing step.

The method according to the invention for pressing in a rivet element has the advantage over the prior art that - similar to the cupping process described above - only one-sided access in the axial direction to the opening formed in the workpiece is necessary. In contrast to the prior art, therefore, no two-sided access is required in each case in the axial direction, so that a method step for forming an additional access opening in a workpiece designed as a hollow body can be completely eliminated. As a result, this method is considerably faster and less expensive to carry out compared with the prior art. In addition, the stability of the workpiece is not affected by an additional access opening, so that it can be dispensed with the introduction of additional stiffening elements. Furthermore, a pressing of rivet elements in openings of such workpieces is possible, where no access opening can be formed in the axial direction, for example, if on the opposite side a weld runs or necessary stiffening elements are arranged inside the workpiece. The attachment of the working cylinder on the rivet or on the adapter element is done for example by writing the cylinder through the opening in a receptacle of the rivet or the adapter element and by attaching by means of a locking and / or clamping closure (eg locking by a bayonet lock or terminals by Festzeihen a laterally introduced grub screw on the rivet or adapter element). It is also conceivable, of course, that in a reverse manner, an extension of the rivet element or the adapter element protrudes through the opening and is fastened analogously in a receptacle of the working cylinder. Preferably, it is provided that for fastening in the fourth pressing step, a first thread of the working cylinder is spindled into a second thread of the rivet element or the adapter element until the press-in punch comes into contact with the second side or the defined clamping force between the press-in ram and the rivet element is achieved. The press-in element is preferably introduced laterally on the first side in the region of the opening, wherein due to the unwinding of the working cylinder in the rivet element nevertheless a comparatively large force in the axial direction for pressing the rivet element can be applied in the opening. Since the working cylinder performs only a translational relative movement in the axial direction during the fifth pressing step relative to the press-in, there is also no risk that by a rotation of the press-in the workpiece undergoes damage or that a rotation of the rivet element relative to the workpiece is generated, whereby the Strength of the press connection between the rivet and the workpiece would be significantly impaired. After pressing in the rivet element in the fifth pressing step, the working cylinder is preferably re-spindled in a sixth pressing step. Alternatively, it is conceivable that the working cylinder is not spindled directly into the rivet, but that the working cylinder is instead spindled into an adapter element. The rivet element is preferably located between the adapter element and the machining tool, so that in the fifth pressing step, the rivet element is pressed by a force applied to the adapter element in the direction of the workpiece by means of the working cylinder, without the working cylinder acts directly on the rivet. Preferably, the rivet element has a through hole through which the working cylinder is guided to the adapter element.

According to a preferred embodiment it is provided that in the second pressing step, a rivet nut is arranged on the first side, wherein in the third pressing step designed as a threaded spindle working cylinder is inserted from the second side into the opening, wherein in the fourth pressing step, the threaded spindle in a thread of Rivet nut or the adapter nut is spindled and wherein in the fifth pressing step by the relative movement between the threaded spindle and the press-in punch along the axial direction of the threaded spindle, the rivet nut is pressed into the workpiece by means of the press-in punch. Advantageously, a press-in nut can thus be pressed completely into the workpiece from the first side, even if the workpiece is a hollow body whose first side is difficult to access in the region of the opening. The rivet nut must be arranged only in the region of the opening on the first side, wherein the force is exerted to press in the nut exclusively through the opening of the threaded spindle. It is also conceivable, for example, that the press-in nut is only provisionally fixed on the first side, for example by means of an adhesive or the like, then the workpiece is processed further, for example in further welding and / or forming processes, and only finally the inventive method for pressing the Rivet nut is performed from the second side.

According to a preferred embodiment, it is provided that in the fifth pressing step an edge region of the workpiece adjacent to the opening is pressed at least partially into an outer groove of the rivet nut by means of the press-in die, wherein preferably a flank of the groove facing the machining tool is pressed onto the edge region by means of the press-in stamp , The edge region of the workpiece is thus advantageously clamped positively and positively in the outer groove, so that a comparatively stable fixation of the press-in nut in the opening of the workpiece can be achieved.

According to an alternative preferred embodiment, it is provided that in the second pressing step, a rivet screw is arranged on the first side is introduced from the first side into the opening, wherein in the third pressing step as provided with an internal thread hollow cylinder working cylinder is arranged on the second side wherein in the fourth pressing step, the hollow cylinder is spindled on the rivet screw and wherein in the fifth pressing step by the relative movement between the hollow cylinder and the Einpresstempel along the axial direction of the hollow cylinder, the rivet screw is pressed into the workpiece. Advantageously, the method according to the invention thus allows not only the pressing of rivet nuts, but alternatively also the pressing of rivet screws. For this purpose, instead of designed as a threaded spindle working cylinder designed as a hollow cylinder cylinder must be used.

According to a preferred embodiment it is provided that the rivet nut or the rivet screw is arranged on the first side of the workpiece and in the region of the opening by means of a die, wherein the rivet nut or the rivet screw is arranged on the die and wherein subsequently the die, in particular along a to the main extension plane of the workpiece parallel direction, is moved into the region of the opening. Advantageously, therefore, the pressing of the rivet element is also possible in such workpieces, which are formed as a hollow body, for example in the form of a hollow cylinder or a profile strand, since the rivet element is simply inserted laterally. In this way, in contrast to the prior art, rivet elements can in particular also be pressed into such workpieces on which no access opening can be formed in the axial direction, for example if a weld extends on the opposite side or necessary stiffening elements are arranged inside the workpiece. Further, since an access opening does not need to be formed on an opposite side of the opening, the stability of the workpiece is not impaired by the press-fitting operation, and the incorporation of reinforcing elements to compensate for such stability deterioration is then unnecessary.

According to a preferred embodiment, it is provided that in the fifth pressing step only a translational movement of the working cylinder relative to the Einpresstempel along the axial direction and in particular no rotational movement of the working cylinder with respect to the Einpresstempel or against the rivet element is executed about an axis parallel to the axial axis of rotation. Preferably, in the fifth pressing step, the working cylinder is held in a rest position relative to the rivet element and / or the adapter element. In this way, the risk is eliminated that the workpiece undergoes damage by rotation of the press-in punch or that unwanted rotation of the rivet element or the adapter element relative to the workpiece is generated, whereby the strength of the press connection between the rivet and the workpiece would be significantly impaired ,

According to a preferred embodiment, it is provided that prior to the third pressing step on the machining tool, the cup die is exchanged for the press-in punch and / or wherein the threaded spindle is exchanged against the hollow cylinder or the hollow cylinder against the threaded spindle before the fifth pressing step on the machining tool. In an advantageous manner, both the cupping process and the pressing-in process are therefore to be carried out with the same processing tool. For this purpose, only the punch element and / or the working cylinder must be exchanged.

A further subject of the present invention is a tool, in particular a hand tool, for cupping a workpiece according to the inventive method for cupping a tool and / or for pressing a rivet element into a workpiece according to the method of the invention for inserting a rivet element into a workpiece, wherein the tool a working cylinder and a punch element in the form of a cup and / or a Einpresstempels, wherein the working cylinder is to be attached to a chalice mold and / or on a rivet and wherein the working cylinder for chaling the workpiece and / or for pressing the rivet in the workpiece opposite the punch element is translationally displaceable along an axial direction of the working cylinder. The tool according to the invention has the advantage over the prior art that a one-sided access in the axial direction to the opening in the workpiece is sufficient to press the workpiece into the cup and / or the rivet element. In contrast to the presses known from the prior art, no counterpressure punch is required on the first side of the workpiece against which a press acting on the workpiece in the axial direction from the second side is pressed. Furthermore, both the cupping process and the pressing-in process can be carried out with the same tool. The tool is relatively quick and easy to convert. The working cylinder is fastened, for example by means of a quick release, for example via a drill chuck, a bayonet lock, a screw connection, a plug connection or the like, on the machining tool, so that the changeover times are comparatively short. Advantageously, fall the required high axial forces in the tool according to the invention only within the tool, ie between the punch member and the working cylinder or between the punch member and the rivet, so that no high axial forces must be introduced from the outside. The tool according to the invention can therefore preferably be designed as a hand tool, so that a mobile and flexibly usable tool for gobbling and / or press-fitting is provided. It is preferably provided that for fastening the working cylinder has a thread for single-spindle in a mating thread of the cup die, the rivet element and / or the adapter element.

According to a preferred embodiment it is provided that the punch element is releasably connected to the machining tool and / or wherein the punch element is displaceably mounted in a guide bore extending along the axial direction through the punch element. In this way, a comparatively compact and stable design of the tool is achieved.

According to a preferred embodiment, it is provided that the tool has a first drive for translationally moving the working cylinder along the axial direction in relation to the stamp element for chamfering the workpiece and / or for pressing the rivet element into the workpiece, and wherein the tool has a second drive for rotational movement the working cylinder has about its longitudinal axis, in particular relative to the punch member, for uni spindling the thread in the mating thread of the cup die and / or the rivet element. The second drive is preferably operated in an opposite direction of rotation in order to uncoil the working cylinder from the rivet element in a sixth pressing step.

A further subject of the present invention is a workpiece having a cup region produced by means of a method according to the invention for cupping a tool and / or a rivet element pressed in by means of a method according to the invention for pressing in a rivet element.

Further details, features and advantages of the invention will become apparent from the drawings, as well as from the following description of preferred embodiments with reference to the drawings. The drawings illustrate only exemplary embodiments of the invention, which do not limit the essential inventive idea.

Brief description of the drawings

1a to 1f show a method for chaling a workpiece and for pressing a rivet nut in the flared workpiece according to the prior art.

2a to 2c 10 shows a schematic view of a method and a tool for cupping a workpiece according to an exemplary first embodiment of the present invention.

3a to 3c 12 shows a schematic view of a method and a tool for press-fitting a rivet element into a workpiece according to an exemplary second embodiment of the present invention.

4a to 4c 10 shows a schematic view of a method and a tool for pressing a rivet element into a workpiece according to an exemplary third embodiment of the present invention.

Embodiments of the invention

In the various figures, the same parts are always provided with the same reference numerals and are therefore usually named or mentioned only once in each case.

In 1a to 1f is schematically a method for cupping a workpiece 2 and for pressing a rivet nut 8th into the preshaped workpiece 2 represented according to the prior art. The joining process is done by means of a fixed pneumatic press 200 , the design in the axial direction 100 a two-sided access to the workpiece 2 requires, implemented. The whole process is shown in the shingles, in 1a and 1b , and in the pressing (also called riveting), shown in 1c . 1d . 1e and 1f , divided up.

In the 1a and 1b is in each case a side view (left) and a sectional image view (right) of the known method for Vorelchen formed as a hollow body workpiece 2 shown. First, the workpiece 2 with an opening 3 in which later the rivet nut 8th' is to be pressed. Subsequently, in one of the opening 3 opposite side of the workpiece 2 an access opening 202 generated ( 1a ). To Vorpelchen is from above a Vorkelchstempel 201 against a second page 20 and from below through the access opening 202 a pre-dicing die 203 against the first page 10 of the workpiece 2 pressed ( 1b ). The knock-down stamp 201 has a goblet tip, which in an indentation of the Vorkelchmatrize 203 moves, leaving a peripheral area of the workpiece 2 in the area of the opening 3 is transformed (see detail view 204 ).

In the 1c to 1f is a side view (left) and a sectional view (right) of the known method for pressing a rivet nut 8th' into the workpiece 2 shown. After the workpiece 2 (as described above), the workpiece becomes 2 between another pneumatic press 300 arranged. This further press 300 includes a press-in punch 301 and a press-in die 302 ( 1c ). On the press-in die 302 becomes the rivet nut 8th' arranged ( 1d ) and then the Einpressmatrize 302 in the axial direction 100 through the access opening 202 in the area of the opening 3 on the first page 10 of the workpiece 2 procedure ( 1e ). Finally, the press-in punch 301 in the axial direction 100 in the area of the opening 3 on the first page 10 opposite second side 20 of the workpiece 2 procedure ( 1f ) and against the Einpressmatrize 302 pressed. As a result, a collar portion of the rivet nut 8th' on the edge area of the workpiece 2 pressed and it is a positive and positive connection between the workpiece 2 and the rivet nut 8th' achieved.

In 2a to 2c is a schematic view of a method and a tool 1 to chalice a workpiece 2 according to an exemplary first embodiment of the present invention. In the figures, a side view (left) and a sectional image view (right) are respectively illustrated. In the first step, the workpiece becomes 2 , here by way of example a hollow profile, provided which has an opening 3 has, whose edge region is to be gekelcht and in the later, in particular a rivet element 8th to be pressed. In a second step becomes laterally, ie parallel to a main extension plane 100 of the workpiece 1 , a chalice mold 4 inserted into the hollow profile, so that the goblet 4 on a first page 10 of the workpiece 2 in the area of the opening 3 is arranged (see 2a ). The goblet 4 preferably has a geometry which depends on the wall thickness of the workpiece 2 in the area of the opening 3 depends. In a third step will be on one of the first page 10 perpendicular to the main plane of extension 100 opposite second side 20 in the area of the opening 3 a machining tool 5 provided. The editing tool 5 includes a working cylinder 5 , which is perpendicular to the main plane of extension 100 extends and which in a guide bore 17 a stamp element 16 is movably guided. The stamp element 16 is as a goblet 7 formed and attached to an annular mounting arrangement 18 attached. At his the goblet 4 facing the end, the working cylinder 5 in the present example, a threaded spindle 6 ' on which in the third step from the second page 20 to the first page 10 through the opening 3 is guided and thus in contact with the chalice die 4 arrives. The goblet 4 points to the threaded spindle 6 ' corresponding internal thread 4 ' on. The fourth step is the threaded spindle 6 ' offset in rotation about its longitudinal axis, so that the external thread of the threaded spindle 6 ' in the internal thread 4 ' the goblet dies ( 2 B ). If that is the workpiece 2 facing outer end of the goblet temple 7 the surface of the workpiece 2 on his second page 20 touches, the rotation of the threaded spindle 6 ' stopped. Preferably, the rotation is stopped only when a certain biasing force is reached, so that the goblet 7 against the second page 20 is pressed. The fifth step is now the working cylinder 6 to a purely translational relative movement relative to the goblet 7 along the axial direction 100 driven. This relative movement (also known as setting stroke) causes the sep 7 in the direction of the chalice matrix 4 is pressed, causing the workpiece 2 in its edge region of the opening 3 is gekelcht ( 2c ). In a final sixth step becomes the working cylinder 6 offset in a relation to the fourth step opposite rotation, so that the threaded spindle 6 ' from the goblet 4 ausspindelt. The editing tool integrates with the goblet 5 three movements: one-spindle set stroke unwinding. The end of Einspindelvorgangs is preferably force-tied and is about the biasing force, which from the plant of the chalice punch 7 on the workpiece 2 results, determined. The threaded spindle 6 ' can - as shown - directly into the chalice 4 be spindled or through the goblet 4 through into an adapter element (not shown). When setting stroke, the threaded spindle 6 retracted and thus the workpiece 2 against the calyx stamp 7 drawn. After the setting stroke, the machining tool spindles 5 preferably automatically off. Subsequently, the goblet is 4 from the hollow body and the machining tool 5 away.

In 3a to 3c are a schematic view of a method and a tool 1 for pressing in a rivet element 8th in a workpiece according to an exemplary second embodiment of the present invention. In the figures, a side view (left) and a sectional image view (right) are respectively illustrated. The tool 1 preferably comprises the in 2a to 2c illustrated machining tool 5 , wherein the stamp element 16 was exchanged so that the editing tool 5 instead of the goblet 7 now a Einpresstempel 9 having. In the first step, this is done by means of the 2a to 2c illustrated chalice flared workpiece 2 that with the press-in stamp 9 providing editing tool 5 and a die 19 provided ( 3a ). In a second step, a rivet element 8th in the form of a rivet nut 8th' on a predefined recording 19 ' the matrix 19 arranged and the die 19 then laterally, ie parallel to the main extension plane 100 , inserted into the hollow body so far that the rivet nut 8th' in the area of the opening 3 on the first page 10 of the workpiece 2 is arranged. Subsequently, in a third step with the threaded spindle 6 ' providing working cylinder 6 of the machining tool 5 from the second page 20 to the first page 10 through the opening 3 guided so that the threaded spindle 6 ' in contact with the rivet nut 8th' arrives. The fourth step is the threaded spindle 6 ' offset in rotation about its longitudinal axis, whereby the external thread of the threaded spindle 6 ' in the internal thread 14 the rivet nut 8th' einspindelt. Alternatively, it is also conceivable that the threaded spindle 6 ' through the rivet nut 8th' through into one below the rivet nut 8th' arranged adapter element is spindled (not shown). The single-spindle process is carried out until the press-in punch 9 in contact with the second page 20 passes and in particular a defined bias between the rivet nut 8th' and the press-in stamp 9 is reached. Subsequently, in the fifth step, a translational relative movement between the threaded spindle 6 ' and the press-in stamp 9 along the axial direction 100 generated to the rivet nut 8th' in the opening 3 press in (set stroke). Due to the geometry of the press-in punch 9 becomes the rivet section of the rivet nut 8th' plastically deformed and pressed together when fully planted. This is a to the opening 3 bordering area 2 ' of the workpiece 2 (especially the flared area) by means of the press-in punch 9 at least partially in an outer groove 11 the rivet nut 8th' pressed. An impressed stamp 9 facing flank 12 the groove 11 is then through the Einpresstempel 9 on the edge area 2 ' pressed. As a result, a stable non-positive and positive connection between the rivet nut 8th' and the edge area 2 ' achieved. In a sixth step, the threaded spindle spindles 6 ' automatically from the rivet nut 8th' or from the adapter element and the die 19 is removed from the hollow body.

In 4a to 4c are a schematic view of a method and a tool 1 for pressing in a rivet element 8th into a workpiece 2 according to an exemplary third embodiment of the present invention. The third embodiment corresponds essentially to the reference to FIG 3a to 3c illustrated second embodiment, wherein instead of the rivet nut 8th' the rivet element 8th however, in the third embodiment, a rivet screw 8th'' includes. In the second step, the riveting screw 8th'' therefore not only in the area of the opening 3 on the first page 10 arranged but also from the first page 10 to the second page 20 through the opening 3 guided. The working cylinder 6 Accordingly, no threaded spindle 6 ' but one with an internal thread instead 13 ' providing hollow cylinder 13 , The fourth step is the hollow cylinder 13 on the rivet screw 8th'' arranged hollow cylinder 13 turned so that the internal thread 13 ' of the hollow cylinder 13 on that through the opening 13 protruding external thread of the rivet screw 8th'' unwind until the press-in punch 9 in contact with the second page 20 passes and in particular the defined bias between the rivet nut 8th' and the press-in stamp 9 is reached. In the fifth step, as described above, the setting stroke is carried out so that the head of the riveting screw 8th'' in the opening 13 is pressed. In the final sixth step, the hollow cylinder 13 automatically spindled. Before pressing in the rivet screw 8th'' into the workpiece 2 becomes the workpiece 2 preferably only with the opening 3 provided and not gekelcht.

The editing tool 5 preferably comprises a portable hand tool, so that the cup method and / or the pressing of the Rivet elements at different locations and in poorly accessible places are executable. The working cylinder is fastened, for example by means of a quick release, for example via a drill chuck, a bayonet lock, a screw connection, a plug connection or the like, on the machining tool, so that the changeover times between the threaded spindle 6 ' and the hollow cylinder comparatively short. In the same way, the stamp element 16 preferably by means of a quick release on the machining tool 5 attached, so that the changeover times between the goblet 7 and the press-in stamp 9 comparatively short. The matrix 19 preferably at the same time includes a goblet 4 trained area, one as a reception 19 ' for the rivet nut 8th' trained area and / or as a recording 19 ' for the rivet screw 8th'' trained area, so with only a single die 19 a goblet of the workpiece 2 , a press-fitting of rivet screws 8th'' and a press-fitting of rivet nuts 8th' is possible.

LIST OF REFERENCE NUMBERS

1

Tool

2

workpiece

2 '

Edge area of the workpiece

3

opening

4

Kelchmatrize

4 '

inner thread

5

processing tool

6

working cylinder

6

screw

7

chalice temple

8th

riveting

8th'

Rivet nut

8th''

Clinching stud

9

Top tool

10

First page

11

Groove of the rivet nut

12

flank

13 '

inner thread

13

hollow cylinder

14

Internal thread of the rivet nut

16

stamp element

17

guide bore

18

mounting assembly

19

die

19 '

admission

20

Second page

100

Axial direction

101

Main plane

200

Press

201

Vorkelchstempel

202

access opening

203

Vorkelchmatrize

204

neckline

300

Further press

301

Top tool

302

Insert die

QUOTES INCLUDE IN THE DESCRIPTION

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Cited patent literature

• DE 3327751 C2 [0002]
• EP 0539793 B1 [0003]

Claims (20)

Method for gobing a workpiece ( 2 ) comprising the method steps: - providing an opening ( 3 ) having workpiece ( 2 ) in a first cupping step, - arranging a cupping die ( 4 ) on a first page ( 10 ) of the workpiece ( 2 ) in a second seeding step, - providing a processing tool ( 5 ) on one of the first page ( 10 ) opposite second side ( 20 ) of the workpiece ( 2 ) in the region of the opening ( 3 ) in a third cupping step, - fixing a working cylinder ( 6 ) of the machining tool ( 5 ) on the goblet ( 4 ) or at one in contact with the chalice die ( 4 ) located in the region of the opening ( 3 ) to a goblet ( 7 ) of the machining tool ( 5 ) in contact with the second page ( 20 ) or a defined clamping force between the gob temple ( 7 ) and the goblet ( 4 ) is achieved in a fourth cupping step and - generating one along an axial direction ( 100 ) of the working cylinder ( 6 ) extending translational relative movement between the working cylinder ( 6 ) and the goblet ( 7 ) to chalice the workpiece ( 2 ) in a fifth cupping step. Method according to claim 1, wherein in the fourth seeding step a first thread of the working cylinder ( 6 ) in a second thread of the cup die ( 4 ) or the adapter element is screwed until the goblet ( 7 ) in contact with the second page ( 20 ) or a defined clamping force between the gob temple ( 7 ) and the goblet ( 4 ) is achieved. Method according to one of the preceding claims, wherein in the second seeding step one with an internal thread ( 4 ' ) goblet ( 4 ) on the first page ( 10 ) is arranged, wherein in the third seeding step as a threaded spindle ( 6 ' ) trained working cylinder ( 6 ) from the second page ( 20 ) out into the opening ( 3 ) is introduced and wherein in the fourth seeding step, the threaded spindle ( 6 ' ) in the internal thread ( 4 ' ) of the goblet ( 4 ) or the adapter element is spindled. Method according to one of claims 1 or 2, wherein in the second seeding step, an externally threaded draw cylinder of the goblet ( 4 ) from the first page ( 10 ) out into the opening ( 3 ) is introduced and wherein in the third seeding step, a working cylinder provided as an inner threaded hollow cylinder ( 6 ) on the second page ( 20 ) is arranged and wherein in the fourth seeding step, the hollow cylinder is spindled on the pull cylinder. Method according to one of the preceding claims, wherein the cup die ( 7 ) by moving the goblet ( 7 ) along a to the main extension plane ( 101 ) of the workpiece ( 2 ) parallel direction in the region of the opening ( 3 ) on the first page ( 10 ) of the workpiece ( 2 ) is arranged. Method according to one of the preceding claims, wherein in the fifth seeding step the working cylinder ( 6 ) opposite the goblet ( 4 ) only a translational movement along the axial direction ( 100 ) and in particular no rotational movement about one to the axial direction ( 100 ) parallel axis of rotation is carried out and wherein the cup of the working cylinder ( 6 ) in relation to the goblet ( 4 ) or the adapter nut is held in particular in a rest position. Method for pressing in a rivet element ( 8th ) in a, in particular by means of a method according to one of the preceding claims, gekelchtes workpiece ( 2 ) comprising the pressing steps: - providing an opening ( 3 ) having workpiece ( 2 ) in a first pressing step, - arranging the rivet element ( 8th ) on a first page ( 10 ) of the workpiece ( 2 ) in the region of the opening ( 3 ) in a second pressing step, - providing a processing tool ( 5 ) on one of the first page ( 10 ) opposite second side ( 20 ) of the workpiece ( 2 ) in the region of the opening ( 3 ) in a third pressing step, - fixing a working cylinder ( 6 ) of the machining tool ( 5 ) on the rivet element ( 8th ) or on an abutment with the rivet element ( 8th ) located in the region of the opening ( 3 ) to a press-in punch ( 9 ) of the machining tool ( 5 ) in contact with the second page ( 20 ) or a defined clamping force between the press-in punch ( 9 ) and the rivet element ( 8th ) is achieved in a fourth pressing step and - generating along an axial direction ( 100 ) of the working cylinder ( 6 ) extending translational relative movement between the working cylinder ( 6 ) and the press-in punch ( 9 ) for pressing in the rivet element ( 8th ) in the workpiece ( 2 ) in a fifth pressing step. The method of claim 7, wherein in the fourth pressing step, a first thread of the working cylinder ( 6 ) in a second thread of the rivet element ( 8th ) or the adapter element is screwed until the press-in punch ( 9 ) in contact with the second page ( 20 ) or the defined clamping force between the press-in punches ( 9 ) and the rivet element ( 8th ) is achieved. The method of claim 8, wherein in the second pressing step, a rivet nut ( 8th' ) on the first page ( 10 ) is arranged, wherein in the third pressing step as a threaded spindle ( 6 ' ) trained Working cylinder ( 6 ) from the second page ( 20 ) out into the opening ( 3 ) is introduced, wherein in the fourth pressing step, the threaded spindle ( 6 ' ) in an internal thread ( 14 ) of the rivet nut ( 8th' ) or the adapter nut is spindled and wherein in the fifth pressing step by the relative movement between the threaded spindle ( 6 ' ) and the press-in punch ( 9 ) along the axial direction ( 100 ) of the threaded spindle ( 6 ' ) the rivet nut ( 8th' ) in the workpiece ( 2 ) is pressed. A method according to claim 9, wherein in the fifth pressing step a to the opening ( 3 ) bordering edge area ( 2 ' ) of the workpiece ( 2 ) by means of the press-in punch ( 9 ) at least partially in an outer groove ( 11 ) of the rivet nut ( 8th' ) is pressed, preferably a the processing tool ( 5 ) facing flank ( 12 ) of the groove ( 11 ) by means of the Einpresstempels ( 9 ) on the edge area ( 2 ' ) is pressed. Method according to claim 8, wherein in the second pressing step a riveting screw ( 8th'' ) on the first page ( 10 ) and from the first page ( 10 ) out into the opening ( 3 ), wherein in the third pressing step as with an internal thread ( 13 ' ) providing hollow cylinder ( 13 ) trained working cylinder ( 6 ) on the second page ( 20 ), wherein in the fourth pressing step the hollow cylinder ( 13 ) on the rivet screw ( 8th'' ) is spindled and wherein in the fifth pressing step by the relative movement between the hollow cylinder ( 13 ) and the Einpresstempel ( 9 ) along the axial direction ( 100 ) of the hollow cylinder ( 13 ) the rivet screw ( 8th'' ) in the workpiece ( 2 ) is pressed. Method according to one of claims 7 to 11, wherein the rivet nut ( 8th' ) or the rivet screw ( 8th'' ) on the first page ( 10 ) and in the area of the opening ( 3 ) by means of a die ( 19 ) is arranged, wherein the rivet nut ( 8th' ) or the rivet screw ( 8th'' ) in a recording ( 19 ' ) on the die ( 19 ) and then the die ( 19 ), in particular along a to the main extension plane ( 101 ) parallel direction, in the area of the opening ( 3 ) is moved. Method according to one of claims 7 to 12, wherein in the fifth pressing step exclusively a translational movement of the working cylinder ( 6 ) opposite the stamp ( 9 ) along the axial direction ( 100 ) and in particular no rotational movement of the working cylinder ( 6 ) opposite the stamp ( 9 ) or against the rivet element ( 8th ) about one to the axial direction ( 100 ) parallel axis of rotation is executed. Method according to one of the preceding claims, wherein before the third pressing step on the machining tool ( 5 ) the goblet ( 7 ) against the Einpresstempel ( 9 ) and / or wherein before the fifth pressing step on the machining tool ( 5 ) the threaded spindle ( 6 ' ) against the hollow cylinder ( 13 ) or the hollow cylinder ( 13 ) against the threaded spindle ( 6 ' ) is exchanged. Tool ( 1 ), in particular hand tools, for gobbling a workpiece ( 2 ) according to a method according to one of claims 1 to 6 and / or for pressing in a rivet element ( 8th ) in a workpiece ( 2 ) according to a method according to one of claims 7 to 14, wherein the tool ( 5 ) a working cylinder ( 6 ) and a stamp element ( 16 ) in the form of a goblet temple ( 7 ) and / or a Einpresstempels ( 9 ), wherein the working cylinder ( 6 ) on a chalice die ( 4 ), on a rivet element ( 8th ) and / or to be attached to an adapter element and wherein the working cylinder ( 6 ) to chalice the workpiece ( 2 ) and / or for pressing in the rivet element ( 8th ) in the workpiece ( 2 ) in relation to the stamp element ( 16 ) along an axial direction ( 100 ) of the working cylinder ( 6 ) is translationally displaceable. Tool ( 1 ) according to claim 15, wherein the working cylinder ( 6 ) a thread for unwinding in a mating thread of the cup die ( 4 ), the rivet element ( 8th ) and / or the adapter element. Tool ( 1 ) according to one of claims 15 or 16, wherein the tool ( 1 ) a die ( 19 ) for placing on a stamp element ( 16 ) opposite side of the workpiece ( 2 ), wherein the die ( 19 ) preferably a goblet ( 4 ) and / or a recording ( 19 ' ) for the rivet element ( 8th ) having. Tool according to one of claims 15 or 17, wherein the stamp element ( 16 ) detachable with the machining tool ( 5 ) and / or wherein the working cylinder ( 6 ) in a direction along the axial direction ( 100 ) by the stamp element ( 16 ) extending guide bore ( 17 ) is slidably mounted. Tool ( 1 ) according to one of claims 15 to 18, wherein the tool ( 5 ) a first drive for translational movement of the working cylinder ( 6 ) along the axial direction ( 100 ) in relation to the stamp element ( 16 ) to chalice the workpiece ( 2 ) and / or for pressing in the rivet element ( 8th ) in the workpiece ( 2 ) and wherein the tool ( 5 ) a second drive for rotationally moving the working cylinder ( 6 ) about its longitudinal axis, in particular relative to the punch element ( 16 ), for unwinding the thread into the mating thread of the cup die ( 4 ) and / or the rivet element ( 8th ) having. Workpiece ( 2 ) comprising one by means of a method according to one of claims 1 to 6 produced cup region and / or a by means of a method according to any one of claims 7 to 14 pressed rivet element ( 8th ).

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