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EP3110578B1 - Outil servant à fixer un élément d'assemblage ou fonctionnel sur une section de pièce - Google Patents

Outil servant à fixer un élément d'assemblage ou fonctionnel sur une section de pièce Download PDF

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Publication number
EP3110578B1
EP3110578B1 EP14815725.8A EP14815725A EP3110578B1 EP 3110578 B1 EP3110578 B1 EP 3110578B1 EP 14815725 A EP14815725 A EP 14815725A EP 3110578 B1 EP3110578 B1 EP 3110578B1
Authority
EP
European Patent Office
Prior art keywords
joining
positioning strips
functional element
guide line
strips
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP14815725.8A
Other languages
German (de)
English (en)
Other versions
EP3110578A1 (fr
Inventor
Michael Badent
Roland Wendt
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tox Pressotechnik GmbH and Co KG
Original Assignee
Tox Pressotechnik GmbH and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Tox Pressotechnik GmbH and Co KG filed Critical Tox Pressotechnik GmbH and Co KG
Publication of EP3110578A1 publication Critical patent/EP3110578A1/fr
Application granted granted Critical
Publication of EP3110578B1 publication Critical patent/EP3110578B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J15/00—Riveting
    • B21J15/10—Riveting machines
    • B21J15/30—Particular elements, e.g. supports; Suspension equipment specially adapted for portable riveters
    • B21J15/32—Devices for inserting or holding rivets in position with or without feeding arrangements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J15/00—Riveting
    • B21J15/02—Riveting procedures
    • B21J15/025—Setting self-piercing rivets

Definitions

  • the joining elements or functional elements provided for a joining point on the component are moved from a template position of the device to the component with a linearly movable punch before they are attached to the component and attached there under the action of force.
  • Joining elements are elements which are attached to at least one material or sheet metal layer or which are used to connect in particular two or more material layers such as metal or sheet metal layers, with a joining process taking place when the joining element is attached. All types of rivet elements are considered joining elements.
  • Functional elements are viewed as elements that are attached to at least one material layer in order to provide a function and / or shape on the material layer, e.g. B. a pin, thread and / or a spherical section or another functionality and / or shape.
  • a combination of a joining element and a functional element in one element is possible.
  • the WO 01/97999 A2 and the EP 0 922 538 A2 relate to known riveting devices.
  • the U.S. 5,733,089 A relates to a device for attaching a joining element according to the preamble of claim 1.
  • the object of the present invention is to improve the devices or tools mentioned in the introduction with regard to a long service life, in particular to avoid disruptions due to tilting or tilting of joining or functional elements that are presented in the device or in the tool and moved on .
  • the invention is based on a tool for attaching a joining element or functional element to a component section with a stamp that can be moved linearly forwards from a position moved back on the tool and moved back again, with a joining element or functional element being connected to a
  • the template position can be brought into a template area on the front side in front of the retracted stamp, so that the stamp takes a joining element or functional element with it from the template area and pushes it into a guide line during its forward movement.
  • the guide line connects in particular to the template position or is adjacent to the template position and leads from the template position z.
  • B. transversely to the feed line in the direction of a die unit of the tool on which the component section is supported for an attachment process.
  • At least two positioning strips that run along the guide line and are designed to position a joining element or a functional element during the sliding movement through the guide line, the at least two positioning strips extending from the guide line into the template area, so that the positioning strips are positioned laterally next to one in the Template position located joining element or functional element are available. This creates a compact, reliable and non-interference-critical device. A jamming or jamming of a joining or functional element in the template area and adjacent areas is avoided.
  • the invention is characterized in that the at least two positioning strips can be pivoted about a pivot axis, which is resiliently mounted, in the template area.
  • the storage is accordingly carried out in the region of the ends of the at least two positioning strips on the punch side.
  • the resilient mounting is advantageously supplemented or superimposed by a pivotable mounting.
  • an ideal and safe holding effect is advantageously implemented in a space-saving and simple manner, taking into account the lowest possible friction on the joining or functional element over the entire length of the guide line.
  • a cylindrical pin can be provided as a bearing element of the pivot bearing, which engages through a suitable round opening or hole in the positioning strip, so that the positioning strip around the longitudinal axis of the pin in particular a few degrees of angle is pivotable or adjustable.
  • the pivot axis that can be provided with the pin is in particular aligned transversely to the longitudinal direction of the guide line, for example in the direction of the transport through the supply line.
  • the pivot axis is resiliently mounted in particular radially to the longitudinal axis of the guide line or radially to the axis of movement of the stamp.
  • the pin of the pivot bearing is on a backdrop such. B. a groove, a recess or an elongated hole into which a protruding portion of the pin extends from the positioning bar, so that the alignment and / or a length of the spring travel in one direction is determined by the backdrop.
  • a radial path of movement of the pin is in particular limited to the inside and thus the radial path of movement of the positioning bar inward z. B. predetermined by one end of the backdrop.
  • each positioning strip is in one piece.
  • the positioning strips extend into the guide line over almost the entire or substantial length thereof and extend into or onto the presentation area.
  • the ends of the positioning strips extending in the direction of the ram are advantageously somewhat laterally spaced from the joining or functional element by, for example, a few fractions of a millimeter in the template position of the joining or functional element.
  • the at least two positioning strips extend over a substantial portion of the guide line, received in this, and with an upper portion protrude over a lower edge of a feed channel of the feed line. From At the lower edge of the feed channel, the projection of the positioning strips, based on the height of the feed channel, is advantageously in particular 50, 60, 70, 80, 90 or 100 percent.
  • the positioning strips protrude comparatively far beyond the lower edge of the feed line, in particular over the entire height of the feed area, the positioning strips being present on the side of a joining or functional element presented in the feed position.
  • the positioning strips extending upwards to the presentation area are provided laterally in an extension of the feed channel in such a way that a joining or functional element arriving from the feed channel cannot hit the positioning strips or tilt on them. Since differently dimensioned joining or functional elements can be processed by the device, the positioning strips are appropriately matched to the supply line for each dimension of the joining or functional elements to be processed.
  • the positioning strips extend in the direction of displacement of the punch at least almost into an area somewhat below an end face of the retracted punch that acts on a joining or functional element.
  • the positioning strips or their inner sides are provided, radially offset to the side in relation to the slide direction of the punch, to a volume that can be taken up by the punch when the retracted punch moves forward.
  • the feed line is present below the feed area or in front of the feed area in the pushing direction of the stamp.
  • the guide line adjoins a joining or functional element presented in the presentation position in the presentation area below or in the advancing direction of the stamp.
  • the device according to the invention comprises, in particular, a guide line with a component surrounding it, for example a hold-down device with the positioning strips, a feed section via which joining or functional elements are received by the feed line and arrive at the template position, and components in the area of the template position, for example a stop component to which the joining element or functional element docks in the template position.
  • the device can, for example, as an attachment to a tool.
  • a riveting tool can be designed for an attachment, so that the device according to the invention is integrated on a rivet setting head of the tool.
  • the invention has hitherto been used to counteract regularly critical operating phases when a joining or functional element is moved further out of the template position into the guide line.
  • the moving joining or functional element cannot, in particular, jam or tilt in an undefined manner or slip or fall forward in the tool due to a missing holding contact.
  • a holding contact for the joining or functional element with the positioning strips is set up shortly or immediately after leaving the template position.
  • a joining or functional element held in a defined or aligned position in the template position can already be acted upon or held and positioned by the positioning strips after moving a few tenths of a millimeter out of the template position.
  • the joining or functional element is moved in a defined manner into and along the guide line by the further punch movement.
  • the joining or functional element is in particular continuously moved or guided in a defined manner along the positioning strips without interrupting the contact situation.
  • the positioning strips are positioned over the Guide line extend out into the template area in such a way that a joining element or functional element comes into contact with the positioning strips when moving out of the template position on the way into the guide line and is held in a defined manner between the positioning strips.
  • the defined holding of the joining or functional element by the positioning strips takes place in particular at every point or continuously on the path of the joining or functional element from the template position further through the guide line.
  • a joining or functional element held between the positioning strips is centered directly in the guide line over the entire length of the sliding movement.
  • the positioning strips act as mechanical holding means for joining or functional elements without a critical interfering contour along the movement path of the joining element.
  • the positioning strips not only provide a holding force to hold the joining or functional element in place, but also, if necessary, urge the joining or functional element into the correct alignment together with the driving and aligning effect of the punch.
  • the positioning strips protruding in the direction of the presentation position on the guide line exercise a guiding and / or alignment function on a joining or functional element which emerges from the supply line on the last partial path when it is fed into the presentation position.
  • the relevant end section of the positioning strips can stand up on the side in the direction transverse to the feed line and form a boundary wall on the outside for a joining or functional element, so that it is functionally correct in the presentation position and is held there by retaining mechanisms in the presentation position.
  • the corresponding end sections of the positioning strips can be matched to the outer shape of the relevant section of the joining or functional element.
  • a front end of the stamp acting on the joining or functional element advantageously has a maximum external dimension that is equal to or slightly smaller than a maximum external dimension or a maximum diameter of the joining or functional element.
  • the joining or functional element generally has a head section which has a larger diameter than a shaft section of the joining or functional element, the head section or its head top facing the punch in the template position.
  • the positioning strips which for example act opposite to the joining or functional element longitudinal axis or symmetrically on the outside of the joining or functional element, hold the joining or functional element between the positioning strips in a clamped manner, but only to the extent that the Joining or functional element can be pushed through between the positioning strips.
  • the positioning strips are pushed outwards a little. Accordingly, the positioning strips are advantageously supported somewhat against a spring force radially to the longitudinal axis of the guide line or are pretensioned.
  • the at least two positioning strips are preferably designed to be identical to one another. It is also advantageous if there are exactly two positioning strips, in particular opposite one another with a hollow volume of a guide channel of the guide line between them.
  • the guide line comprises sections of a bore wall of a guide bore in a guide base body and at least two positioning strips present along the guide line, which are designed for positioning a joining or functional element during its sliding movement through the guide line.
  • Positioning strips on the bore wall like this are coordinated so that a joining or functional element can reach the sections of the bore wall during the sliding movement through the guide line.
  • the positioning strips are in particular received or supported on the basic guide body and protrude somewhat radially inwards beyond the wall of the bore.
  • a joining or functional element can touch the bore wall with its outside in particular when the bore wall and inner sides of the positioning strips are circumferentially aligned with one another, with the inner sides of the positioning strips being in holding contact with the joining or functional element or somewhat pushed outwards.
  • the inner sides of the positioning strips which are designed to rest on the joining or functional element, protrude slightly or, for example, a few tenths of a millimeter radially inward beyond the bore wall.
  • a joining or functional element held between these in this position of the positioning strips generally remains at a distance when being pushed through the guide line from sections of the bore wall which are circumferentially adjacent to the positioning strips.
  • the wall of the bore is matched in particular to a maximum diameter of the joining or functional elements, wherein a large number of joining or functional elements, possibly with different dimensions in the maximum diameter, can be processed with the device.
  • the maximum diameter of the joining or functional elements only has to be within a diameter range permissible for the device, the different maximum diameters of the joining or functional elements e.g. B. are caused by tolerances.
  • the positioning strips are preferably accommodated in receiving volumes or recesses in the bore wall that are appropriately matched to the positioning strips, e.g. B. in that the bore wall is circumferentially interrupted over its substantial length via at least two recesses.
  • the recesses can, for example, by longitudinal grooves running parallel to the bore with, for example, angled sides in the bore wall be educated.
  • the recesses allow a comparatively small adjustment movement radial to the longitudinal axis of the guide line and a slight adjustment of the positioning strips obliquely to the longitudinal axis of the guide line.
  • a joining or functional element will be in contact with the positioning strips when it is pushed through the guide line, in particular brief contact of the joining or functional element with sections of the bore wall that are circumferentially present between the positioning strips .
  • the positioning strips give way radially outwards.
  • the relevant sections of the bore wall can advantageously take on positioning and / or guiding tasks for the joining or functional element when it is pushed through the guiding line.
  • the punch diameter is advantageously somewhat smaller than the diameter of the joining or functional element head.
  • a comparatively very small air annular gap remains with a radial extent of z. B. a few tenths of a millimeter.
  • the joining or functional element can also touch the relevant sections of the bore wall for a short time.
  • the passage or the hollow volume provided by the guide line, into which the punch dips when moving forward and through which the joining or functional element is pushed, is delimited by the sections of the bore wall and the insides of the at least two guide strips.
  • At least one of the at least two positioning strips can be pivoted about a pivot axis in the region of the template area.
  • the pivotability or longitudinal adjustment of the positioning strips is possible in particular by a maximum of a few degrees of angle, for example by a maximum of 1, 2, 3 or 4 degrees.
  • the pivot axes are in particular transverse or oblique to Pushing direction through the guide line or transversely to the longitudinal axis of the positioning strips.
  • the pivot axes of the, for example, two positioning bars are preferably at the level of the template area, laterally offset to a volume that the punch moving forward from the retracted position occupies, somewhat spaced from the end face of the retracted punch or on both sides of a volume that is supported by a joining or Functional element can be taken in the template position.
  • the pivot axes are parallel to the feed direction as an extension of the respective opposite walls of the feed line.
  • the positioning strips are preferably designed in the same way or are pivotable.
  • the at least two positioning strips can each be pivoted about a pivot axis which are aligned parallel to one another and are at the level of a cross section to the direction of movement of the punch.
  • the positioning strips can advantageously assume an orientation that converges in the manner of a funnel or at an angle in the sliding direction through the conveying line. This ensures that a joining or functional element is held between the positioning strips during the entire sliding process and cannot occur due to the constriction formed in the sliding direction.
  • a pivot mounting of the positioning bars can alternatively or additionally be provided in an end region of the positioning bars facing away from the template position or at another point.
  • the at least two positioning strips are resiliently mounted in the template area.
  • the resilient storage takes place in radial direction to the direction of movement of the punch or to the longitudinal axis of the guide line.
  • precisely one of the at least two positioning strips is resilient or all of the positioning strips are, in particular, resiliently mounted in each case in the same way.
  • the spring loading is advantageous in such a way that the positioning strips are pretensioned in the basic state without a joining or functional element, in particular aligned at least almost parallel to the punch axis, with a, if possibly comparatively low, pretensioning force acting on the positioning strips through the spring force of corresponding spring bearing means of the spring bearing arrangement.
  • the type or design of the resilient mounting of the positioning strips in the area of the template position can be set up in the most varied of ways, for example by means of screw, spiral, leaf, ring or other springs.
  • the force acting on the joining or functional element via the positioning strips due to the spring force of the resilient mounting is coordinated in such a way that, on the one hand, there is no excessive friction between the joining or functional element and the inside of the positioning strips when it is pushed through the guide line to prevent heat generation
  • there is always sufficient holding force acting on the joining or functional element so that the joining or functional element is held between the positioning strips in all possible spatial positions of the device or tool, even with a Overhead application, for example if the punch is withdrawn in a special or malfunction operating state before the joining or functional element has left the guide line and is attached to the component section.
  • the joining or functional element when operation is restarted after the malfunction, it can be safely assumed that the joining or functional element is present in a functionally correct alignment within the guide line.
  • the holding function of the positioning strips on a joining or functional element acts purely mechanically and over the entire possible path of movement of the joining or functional element directly after that of a joining or functional element within the device after leaving the original position.
  • other holding mechanisms usually act on the joining or functional element, for example a holding force through suction with a negative or differential pressure acting on the joining or functional element.
  • the longitudinal ends of the at least two positioning strips, which are opposite the longitudinal ends in the template area are resiliently received in the radial direction to the longitudinal axis of the guide line. With this measure, a holding force is reliably and compactly applied to a joining or functional element pushed through along the guide line, in particular over the entire movement path through the guide line.
  • At least one resilient receptacle can also be provided at one point or at several points over the length of the positioning strips.
  • the ends of the positioning strips which are assigned to a free end of the guide line, at which a joining or functional element leaves the guide line and can be attached to the component section, via an elastic element that acts radially on the outside of the positioning strips, for example, a ring-shaped surrounding elastic element such.
  • an elastic element that acts radially on the outside of the positioning strips, for example, a ring-shaped surrounding elastic element such.
  • B. a closed annular coil spring, a toroidal spring, a rubber or O-ring is resiliently applied.
  • the elastic element can bear directly on the outside of the positioning strips or act indirectly on the positioning strips through an intermediate element located in between.
  • the positioning strips are resiliently mounted or preloaded in particular in the region of the longitudinal ends which are assigned to the end of the guide line.
  • the positioning strips can accordingly yield outwardly in the radial direction to the longitudinal axis of the guide line when a pushed-through joining or functional element pushes the positioning strips apart at the bottom.
  • the positioning strips extend over at least a substantial length of the guide line.
  • a defined positioning of a joining or functional element is possible over the essential or possibly entire length of the guide line set up, which is pushed through the guide line with the punch.
  • the positioning strips protrude, in particular, on the punch side over the guide line, in particular over the entire height of the transversely arriving feed line, and can extend as far as a free end of the guide line facing a die unit of the tool.
  • the positioning strips and the basic guide body are matched to one another in such a way that, based on a total circumference of a cross section of the guide line, the at least two positioning strips make up approx. 30%, in particular approx. 50%, in particular approx. 60% or more.
  • the 100% additional portion of the total circumference of approx. 70%, in particular approx. 50%, in particular approx. 40% or less is formed by sections of the bore wall of the guide bore lying circumferentially between the positioning strips.
  • the at least two positioning strips are present in such a way that they are coordinated to provide a holding force on the joining or functional element as soon as a joining or functional element moved out of the template position comes into contact with the positioning strips, wherein a holding force acts on the joining or functional element with the positioning strips on the entire path that can subsequently be covered by the joining or functional element along the positioning strips.
  • the positioning strips can be coordinated so that a joining or functional element held in the template position, for example by suction, is not in contact with the positioning strips, which applies to all dimensions of the joining or functional elements that can be processed by the device.
  • the distance between the joining or functional element in the template position and the However, the positioning bar is comparatively very small or is, for example, approx.
  • the joining or functional element After a correspondingly short disengaging movement of the joining or functional element from the template position by lowering the punch and pressing a stamp face against a particularly flat top of a head of the joining or functional element in the template position, after a brief disengaging movement of the joining or functional element Outer section of the joining or functional element in abutment contact with the positioning strips and is held in a clamped manner when the positioning strips are reached. Even at this point in time, the holding position of the joining or functional element is retained in a defined manner.
  • the joining or functional element remains securely held in the guide line even in the event of a malfunction, for example if the advancing punch suddenly moves back again before reaching an extension end point, i.e. the joining or functional element remains in the guide line.
  • the positioning strips are designed accordingly, in particular via the preload or spring mounting.
  • the holding force is in particular significantly less than a punch force that acts on the joining or functional element from the punch, so that a joining or functional element can be pushed through the guide line by the driven punch without any problems, but at the same time held clamped between the positioning strips .
  • the contact side is formed by an inside of the positioning strip, the inside being adjacent to a passage volume provided by the guide line for the joining or functional elements to be pushed through.
  • the contact side is, for example, on an outer shape of an area of the largest diameter of the joining or functional element matched, for example, to a head section of the joining or functional element.
  • a large number of commercially available joining or functional elements have a cylindrical basic shape, especially in the area of the largest outer or radial dimension, so that the contact side is correspondingly concave in the same radius or corresponding to a section of a hollow cylinder.
  • the contact side can advantageously rest flat on the outside of the joining or functional element or press on the outside of the joining or functional element via a line contact or at least over several contact points in the contact.
  • the positioning strips can advantageously each be formed as a strip-shaped half-shell with a concave inner side shaped in a radius.
  • the two or more positioning strips are advantageously positioned circumferentially uniformly relative to one another in relation to cross-sections of the guide line, for example according to two positioning strips lying opposite in the guide line or according to three positioning strips each circumferentially offset by 120 degrees.
  • leaf spring arrangement for the resilient mounting of the at least two positioning strips is present in the template area.
  • Leaf springs can be designed in a simple and space-saving manner and also function reliably.
  • a differential pressure arrangement with which a pressure difference can be generated in the area of a joining or functional element presented in the presentation position, so that the joining or Functional element is held in position in the template position with the acting differential pressure.
  • a negative pressure arrangement for applying a negative pressure in the area of the template position for holding a joining or functional element located in the template position in a fixed position is advantageously designed. If the joining or functional element is held in the template position by the negative pressure or suction and is moved slightly out of the template position by the punch, the negative pressure effect on the joining or functional element is torn off, at which point the joining or functional element is already in Holding contact is with the positioning strips resting on the outside of the joining or functional element.
  • the invention also relates to a tool for attaching a joining or functional element to a component section with a punch that can be moved linearly forwards from a moved back position on the tool and moved back again, a device according to one of the above-mentioned variants being present.
  • the tool can, for example, be designed as a semi-hollow punch rivet, solid punch rivet or clinch rivet tool or as a tool with which other joining elements and / or functional elements can be introduced into a sheet metal layer or several sheet metal layers.
  • the tool particularly advantageously also comprises sensor means and a control unit, in particular with a computer unit for processing sensor data from the sensor means or for controlling the operating processes, for example a drive unit also assigned to the tool, such as a hydraulic, pneumatic, hydropneumatic and / or electric drive for linear movement of the stamp or for other driven functional parts.
  • a control unit for processing sensor data from the sensor means or for controlling the operating processes, for example a drive unit also assigned to the tool, such as a hydraulic, pneumatic, hydropneumatic and / or electric drive for linear movement of the stamp or for other driven functional parts.
  • part of a tool according to the invention designed as a riveting tool 1 with a feed 6 for joining elements, for attaching a joining element to a component section B indicated by dashed lines is shown in section and schematically.
  • the component section B consists, for example, of two or more sheet metal material layers to be connected to one another. Should as an alternative to Joining element a functional element are processed, this is usually attached to exactly one sheet metal. However, the functional element can also be designed to be able to be attached to several sheet metal layers, possibly with the additional function of connecting several sheet metal layers.
  • FIG. 1 to 3 is a joining element presented individually in the riveting tool 1, here as an example a semi-tubular punch rivet 2, which can be processed by the riveting tool 1 or can be pressed into component section B under the action of force and partial deformation of semi-tubular punch rivet 2 and component section B.
  • the semi-hollow punch rivet 2 is in the Figures 1 to 3 held in a fixed position in a waiting or presentation position 3 in the riveting tool 1. In the template position 3, the semi-hollow punch rivet 2 is present in a template area 3a or occupies the template area 3a.
  • the semi-tubular punch rivet 2 comes from a memory (not visible) remote from the riveting tool 1 for a large number of semi-tubular punch rivets via, for example, a feed tube (not shown), which guides the semi-tubular punch rivets to a feed channel 7 of the feed 6.
  • the semi-tubular punch rivets are conveyed in the direction P3 through the feed channel 7 into a rivet setting head 4 of the riveting tool 1.
  • a punch of the riveting tool 1 designed as a rivet setting pin 5 and designed as a rivet setting pin 5 via a drive unit of the riveting tool 1, which cannot be seen according to the arrows P1 and P2, is located in the Figures 1 and 3 in a position fully retracted in direction P2.
  • Figure 4 shows the rivet setting pin 5 in a partially extended and Figure 5 in a fully extended position with the semi-tubular punch rivet 2 in front of it.
  • the semi-hollow punch rivet 2 is not fed from the memory in the axial direction or in the direction of the longitudinal axis L of the semi-hollow punch rivet 2 in the rivet setting head 4, but in the transverse direction to the longitudinal axis L of the semi-hollow punch rivet 2 through the feed 6
  • the semi-tubular punch rivet 2 can be shot directly under the rivet setting pin 5, whereby an otherwise necessary mechanism, for example a slide mechanism, can be dispensed with, which must turn the semi-tubular punch rivet by 90 degrees before the punch pushes the semi-tubular punch rivet in the direction P4 according to the in Figure 1 alignment shown with one rivet bottom first.
  • the semi-hollow punch rivet 2 is conveyed, for example, by means of an air stream 8 or pneumatically in the direction P3 and shot directly under the rivet setting pin 5 or its end face 5a and held there aligned in the template position 3 or in the template area 3a.
  • the semi-hollow punch rivet 2 is sucked in by applying a negative pressure p in a low-pressure bore 10 to a stop 11 or to a contact contour 14 configured thereon and is held in a fixed position in the template position 3.
  • the semi-hollow punch rivet 2 which has been sucked in closes an opening 10a of the low-pressure bore 10.
  • the rivet setting pin 5 moves backward, it takes a single semi-tubular punch rivet with it from the template position 3 shown for the semi-tubular punch rivet 2 in the template area 3a in the direction P4 during the subsequent advancement according to P1, by moving the end face 5a, which is designed as a flat plane surface, onto a head-side, likewise flat face 2a of the semi-tubular punch rivet 2 acts and the semi-hollow punch rivet 2 advances in the direction of P4, which the Figures 4 and 5 clarify.
  • the semi-hollow punch rivet 2 becomes somewhat radial or in accordance with FIG Figure 1 template position 3 offset laterally to the longitudinal axis S of the rivet setting pin 5, set back until the longitudinal axis L of the semi-hollow punch rivet 2 and the longitudinal axis S of the rivet setting pin 5 lie on a common straight line.
  • the semi-hollow punch rivet 2 if its longitudinal axis L is not aligned exactly parallel to the longitudinal axis S of the rivet setting pin 5 is brought into an exact parallel alignment of L and S, so that the end face 5a lies parallel to the end face 2a.
  • the semi-tubular punch rivet 2 In the template position 3 is the semi-hollow punch rivet 2 with a rivet head 13, which merges on the outside via a concave groove 13a into a shaft 12 of the semi-hollow punch rivet 2, in an at least almost form-fitting contact with a correspondingly convex section of the contact contour 14 at the stop 11 the contact contour 14, the semi-tubular punch rivet 2 is moved in the first movement section from the template position 3 or from the template area 3a by the rivet setting pin 5 against P3 and in direction P4 until the semi-tubular punch rivet 2 comes into holding contact on guide strips 15, 16. Subsequently, the semi-tubular punch rivet 2 is pushed by the rivet setting pin 5 linearly in the direction P4, which Figure 4 and 5 clarify.
  • the longitudinal axis of the stop 11 and thus the contact contour 14 is The wall is slightly offset in the direction of P3 in relation to the longitudinal axis S of the punch.
  • the correspondingly offset semi-hollow punch rivet 2 is moved slightly in the opposite direction to P3 by the rivet setting pin 5 advancing according to P1, relative to the end face 5a of the rivet setting pin 5, i.e. slightly back against the direction when arriving through the feed channel 7.
  • the semi-hollow punch rivet 2 is inserted through a punch channel 9a in a hold-down lug 9 or adjacent to concave inner sides 15a, 16a of the guide strips 15 , 16 continued. Circumferentially adjacent to the guide strips 15, 16 and radially to the inner sides 15a, 16a by a few tenths of a millimeter to the outside Bore wall sections 9b of the punch channel 9a are present.
  • the sectional views of the riveting tool 1 result from sections through the longitudinal axis S of the rivet setting pin 5.
  • the upper section of the guide strips 15, 16 advantageously extends so far into the template area 3a that the guide strips 15, 16 clearly protrude beyond a lower edge 7b of the feed channel 7, in particular corresponding to an entire height 7a of the feed channel 7.
  • the rivet setting pin 5 is shown in the extended state in the direction of a die unit (not shown) of the riveting tool 1 Figure 5 Surrounded on the outside circumferentially over its entire length by the hold-down device designed as a hold-down nose 9, which serves to fix the component section B supported on the underside of the die unit on the upper side.
  • the transition from the lateral feed of the semi-tubular punch rivet 2 according to P3 to the template position 3 and from there further in direction P4 is supported by the contact contour 14, which represents a continuous path without interfering contours and / or without component offsets for the moving semi-tubular punch rivet 2.
  • the latter is, for example, spaced a few tenths of a millimeter from sections of the guide strips 15 and 16, which is explained in more detail below.
  • the holding force on the semi-tubular punch rivet 2 due to the negative pressure p acting in the template position 3 breaks off as soon as the semi-tubular punch rivet 2 is pushed minimally or slightly out of the template position 3 by the action of the rivet setting pin 5 moving down according to P1.
  • the inner sides 15a, 16a coming into contact with the semi-tubular punch rivet 2 take on the holding function or guide the semi-tubular punch rivet 2.
  • the semi-tubular punch rivet 2 is always defined aligned moved or positioned.
  • the guide strips 15, 16 of the same type are advantageously designed as elongated longitudinal shells with their inner sides 15a, 16a in a concave shape, which are received in the hold-down lug 9.
  • the semi-hollow punch rivet 2 is clamped between the spring-loaded guide strips 15, 16, which, if the semi-hollow punch rivet 2 is not present, are pre-tensioned and positioned in a defined manner.
  • the semi-hollow punch rivet 2 is held in a slightly pressing manner on the outside by the guide strips 15, 16.
  • the guide strips 15, 16 are designed to be deflectable and adjustable to the outside.
  • the guide strips 15, 16 represent a partial extension of a delimitation of the feed channel 7.
  • the guide strips 15, 16 are each in their upper end area or in the area of the template position 3 or in the area to the side of the template area 3a by a linearly displaceable and guided swivel joint 17 or 18 with pivot axes D1 and D2 and are each under the bias of a respective leaf spring 19 or 20.
  • the guide strips 15, 16 are spring-loaded. This is set up, for example, by an elastic element or a spring ring 21 which is placed around the outside of the guide strips 15, 16.
  • the spring ring 21 acts via an intermediate element 22 on the guide strips 15 and 16.
  • the guide strips 15, 16 are inserted into recessed cutouts in the longitudinal direction of the hold-down nose 9 or in suitably matched longitudinal grooves 23, 24 in the hold-down nose 9.
  • the arrangement in the longitudinal grooves 23, 24 enables a slight inclined adjustment according to P6 and resilient evasive movement of the guide strips 15, 16 according to R1 and R2 in the area of the swivel joints 17 and 18 when one is pushed through Joining element through the punch channel 9a depending on the position of the semi-hollow punch rivet 2 along the punch channel 9a.
  • the guide strips 15, 16 deflect somewhat radially outwardly according to P5 or R1, R2 against the spring action of the leaf springs 19, 20 or the spring ring 21 or are temporarily positioned around the pivot axes D1 and D2 somewhat according to P6.
  • the swivel joints 17, 18 enable the guide strips 15, 16 to be adjusted or pivoted from the point in time at which the lower sections of the guide strips 15, 16 open somewhat towards the outside against the spring ring 21.
  • the swivel joints 17, 18 include bolts 17a, 18a, with which maximum positions or a fixed stop towards the inside or towards one another can be specified with respect to the radial position of the guide strips 15, 16.
  • the bolts 17a, 18a are each guided in coordinated guide slots 25 transversely to the direction of movement of the rivet setting pin 5.
  • the guide slot 25 is designed radially outwards in such a way that no stop is effective for the guide strips 15, 16 in order to reliably prevent a joining element from jamming.
  • the guide strips 15, 16 with the leaf springs 19, 20 are pressed inwardly so that the protruding inner sides 15a, 16a form an aligned extension of a side wall of the feed channel 7, so that an incoming semi-tubular punch rivet 2 Guided on both sides or laterally, the template position 3 is reached under the rivet setting pin 5 that has been moved back.
  • the arrangement according to the invention advantageously consists of a few and simple components. This means that only a small amount of space is required.
  • comparatively simple construction elements such as the leaf springs 19, 20, the guide strips 15, 16 and the spring ring 21 can be used.
  • the guide strips 15, 16 are slightly spaced at their respective lower ends from the free lower end of the punch channel 9a or the hold-down nose 9, the corresponding distance between the ends of the guide strips 15, 16 and the lower end of the hold-down nose 9 being a few millimeters.
  • the distance is in particular less than a length of the shortest joining element of all variants of joining elements that can be processed by the device, so that even when processing the shortest joining or functional element that can be operated by the device, it is already stuck in the material layer or remains stuck before it is released from the guide strips 15, 16 or loses contact with them.
  • a joining element is thus still held securely by the guide strips 15, 16 when the joining element is already protruding from the guide bore and is partially anchored in the component section, with the partial anchoring in the component section no longer requiring a holding function acting on the joining element by the guide strips 15, 16 is because the joining element with the partial anchoring in the component section can no longer tilt spatially in an undefined manner.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Insertion Pins And Rivets (AREA)
  • Automatic Assembly (AREA)

Claims (9)

  1. Outil (1) destiné à fixer un élément de jonction (2), comme tous les types d'éléments de rivetage, ou des éléments fonctionnels à une portion de composant, ledit outil comprenant :
    - un poinçon (5) qui peut être déplacé linéairement en avant et en arrière depuis une position reculée au niveau de l'outil (1),
    - une zone de référence (3a) disposée du côté frontal en avant du poinçon (5) reculé,
    - un conduit d'amenée (7) qui permet d'amener l'élément de jonction (2) ou l'élément fonctionnel à une position de référence (3) dans la zone de référence (3a) du côté frontal en avant du poinçon (5) reculé, et
    - un conduit de guidage (9a) de sorte que le poinçon (5) lors de son déplacement en avant puisse prendre un élément de jonction (2) ou un élément fonctionnel depuis la zone de référence (3a) et le faire glisser dans le conduit de guidage (9a),
    - au moins deux baguettes de positionnement (15, 16) étant prévues, qui s'étendent le long du conduit de guidage (9a) et qui sont destinées à positionner l'élément de jonction (2) ou l'élément fonctionnel pendant le mouvement de coulissement à travers le conduit de guidage (9a), les au moins deux baguettes de positionnement (15, 16) s'étendant du conduit de guidage (9a) jusque dans la zone de référence (3a) de sorte que les baguettes de positionnement (15, 16) soient disposées latéralement à côté d'un élément de jonction (2) ou d'un élément fonctionnel situé dans la position de référence, les au moins deux baguettes de positionnement (15, 16) pouvant pivoter sur un axe de pivotement (D1, D2) dans la zone de référence (3a),
    caractérisé en ce que les axes de pivotement (D1, D2) sont montés sur ressort.
  2. Outil selon la revendication 1, caractérisé en ce que
    les baguettes de positionnement (15, 16) s'étendent au-delà du conduit de guidage (9a) jusque dans la zone de référence (3a) de telle sorte que, lors du déplacement de la position de référence (3) sur le chemin menant jusque dans le conduit de guidage (9a), un élément de jonction (2) ou un élément fonctionnel vient en contact avec les baguettes de positionnement (15, 16) et est maintenu de manière définie entre les baguettes de positionnement (15, 16).
  3. Outil selon la revendication 1 ou 2, caractérisé en ce que le conduit de guidage (9a) comprend des portions (9b) d'une paroi d'alésage d'un alésage de guidage ménagé dans un corps de base de guidage (9) et au moins deux baguettes de positionnement (15, 16) qui sont présentes le long du conduit de guidage (9a) et qui sont conçues pour positionner un élément de jonction (2) ou un élément fonctionnel lors du mouvement de coulissement de celui-ci à travers le conduit de guidage (9a), les baguettes de positionnement (15, 16) étant adaptées à la paroi d'alésage de sorte qu'un élément de jonction (2) ou un élément fonctionnel peut atteindre les portions (9b) de la paroi d'alésage pendant le mouvement de coulissement à travers le conduit de guidage (9a).
  4. Outil selon l'une des revendications précédentes, caractérisé en ce que les extrémités longitudinales des au moins deux baguettes de positionnement (15, 16), lesquelles sont opposées aux extrémités longitudinales dans la zone de référence (3a), sont reçues élastiquement dans la direction radiale par rapport à l'axe longitudinal du conduit de guidage (9a).
  5. Outil selon l'une des revendications précédentes, caractérisé en ce que les baguettes de positionnement (15, 16) s'étendent sur au moins une longueur importante du conduit de guidage (9a).
  6. Outil selon la revendication 3, caractérisé en ce que les baguettes de positionnement (15, 16) et le corps de base de guidage (9) sont adaptés entre eux de sorte que, rapporté à toute la circonférence d'une section transversale du conduit de guidage (9a), les au moins deux baguettes de positionnement (15, 16) représentent une proportion d'environ 30 %, en particulier d'environ 50 %, en particulier d'environ 60 % ou plus, sur toute la circonférence.
  7. Outil selon l'une des revendications précédentes, caractérisé en ce que les au moins deux baguettes de positionnement (15, 16) sont adaptées de manière à produire une force de maintien sur l'élément de jonction (2) ou l'élément fonctionnel dès qu'un élément de jonction (2) ou un élément fonctionnel, qui a quitté la position de référence (3), vient en contact avec les baguettes de positionnement (15, 16), les baguettes de positionnement (15, 16) permettant à une force de maintien d'agir sur l'élément de jonction (2) ou l'élément fonctionnel sur tout le chemin parcouru par l'élément de jonction (2) ou l'élément fonctionnel le long des baguettes de positionnement (15, 16).
  8. Outil selon l'une des revendications précédentes, caractérisé en ce que les baguettes de positionnement (15, 16) sont conçues avec un côté formant butée (15a, 16a) adapté à une forme extérieure d'une portion d'élément de jonction ou d'élément fonctionnel.
  9. Outil selon l'une des revendications précédentes, caractérisé en ce qu'un agencement de ressorts à lames est prévu pour monter élastiquement les au moins deux baguettes de positionnement (15, 16) dans la zone de référence (3a).
EP14815725.8A 2014-02-26 2014-12-18 Outil servant à fixer un élément d'assemblage ou fonctionnel sur une section de pièce Active EP3110578B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102014002571.3A DE102014002571A1 (de) 2014-02-26 2014-02-26 Vorrichtung und Werkzeug zum Anbringen eines Füge- oder Funktionselements an einem Bauteilabschnitt
PCT/EP2014/078591 WO2015128029A1 (fr) 2014-02-26 2014-12-18 Dispositif et outil servant à fixer un élément d'assemblage ou fonctionnel sur une section de pièce

Publications (2)

Publication Number Publication Date
EP3110578A1 EP3110578A1 (fr) 2017-01-04
EP3110578B1 true EP3110578B1 (fr) 2020-09-23

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EP14815725.8A Active EP3110578B1 (fr) 2014-02-26 2014-12-18 Outil servant à fixer un élément d'assemblage ou fonctionnel sur une section de pièce

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US (1) US10307815B2 (fr)
EP (1) EP3110578B1 (fr)
CN (1) CN106029252B (fr)
DE (1) DE102014002571A1 (fr)
WO (1) WO2015128029A1 (fr)

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DE102013019519A1 (de) * 2013-11-22 2015-05-28 Tox Pressotechnik Gmbh & Co. Kg "Vorrichtung zum Anbringen eines Fügeelements an einem Bauteilabschnitt und Werkzeug"
US10933592B2 (en) * 2016-06-29 2021-03-02 Valinge Innovation Ab Method and device for inserting a tongue
WO2018004438A1 (fr) 2016-06-29 2018-01-04 Välinge Innovation AB Procédé et dispositif d'insertion d'une languette
EP3478903B1 (fr) 2016-06-29 2021-09-01 Välinge Innovation AB Procédé et dispositif de gestion et de séparation d'une languette à partir d'une ébauche de langue
EP3478468B1 (fr) 2016-06-30 2021-05-26 Välinge Innovation AB Dispositif d'insertion d'une languette
JP6999674B2 (ja) 2016-12-22 2022-01-18 ベーリンゲ、イノベイション、アクチボラグ タングをパネルの挿入溝に挿入するための装置
US10625328B2 (en) 2017-08-20 2020-04-21 Vahid Babalo System of electro hydro clinching
CN108127069A (zh) * 2017-12-12 2018-06-08 青岛本色金属有限公司 压铆机
EP3718437A1 (fr) 2019-04-05 2020-10-07 Välinge Innovation AB Méthode d'assemblage d'un meuble
DE102019110011A1 (de) * 2019-04-16 2020-10-22 Böllhoff Verbindungstechnik GmbH Setzkopf, Blechpresse oder Setzgerät mit diesem Setzkopf sowie ein Fügeverfahren eines Fügeelements mit dem Setzkopf
DE102019114421B3 (de) * 2019-05-29 2020-07-09 HELLA GmbH & Co. KGaA Schraubvorrichtung mit Schutzvorrichtung zum Einsatz in einem kollaborativen Arbeitsplatz
CN116571777A (zh) * 2023-06-10 2023-08-11 浙江佶龙机械有限公司 一种高精度双向调节的镗削装置

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Also Published As

Publication number Publication date
DE102014002571A1 (de) 2015-08-27
US10307815B2 (en) 2019-06-04
US20160346829A1 (en) 2016-12-01
EP3110578A1 (fr) 2017-01-04
CN106029252B (zh) 2019-03-26
WO2015128029A1 (fr) 2015-09-03
CN106029252A (zh) 2016-10-12

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