Böllhoff Verbindungstechnik GmbH

A C-shaped tool holder has a first leg and a second leg that is arranged opposite to the first leg, a connecting piece by which the first leg and second leg are connected with each other at a respective connecting end. An operating end of the first leg serves for fastening a punch in the direction of the operating end of the second leg, and an operating end of the second leg serves for fastening a die dome wherein an offset difference due to a gravity-caused offset between the operating ends of the first and second legs can be minimized by at least one compensating element which is arranged at one or more of the following elements: the first leg, the second leg or the connecting piece.

A supply device for joining elements. The supply device includes a receiving portion for at least one joining element, in which a joining element is receivable and positionable in front of a first opening, a circumferentially closed hose of a flexible material which on a first end is connected with the receiving portion and on an opposite, second end with a discharge portion, as well as a flexible thrust element which is movable back and forth using a drive means through the hose between a retracted position in which a front end of the thrust element is located in the receiving portion and an extended position in which the front end is located in the discharge portion, so that the joining element which is positioned in front of the first opening is pushable with the thrust element out of the receiving portion through the hose into the discharge portion.

An axial tolerance compensation arrangement for the automatic compensation of tolerances between a first and a second component including: a nut element with a radially outer fastening structure, which is fastenable in a component opening of the first component, and an inner nut thread of a first thread direction, a hollow screw with a head at a first axial end of the hollow screw and a hollow-cylindrical shaft having an adjusting thread at a radial outside matching the nut thread and at a radial inside a fastening thread with a second thread direction opposite to the first thread direction. The fastening thread interacts with a fastening screw of a second thread direction so that the first and the second component are fastenable via the tolerance compensation arrangement. The fastening thread includes a dragging element that connects the fastening screw with the hollow screw using a releasable dragging connection.

An axial tolerance compensation arrangement for the automatic compensation of tolerances between a first and a second component, including: a nut element with a radially outer fastening structure, which is fastenable in a component opening of the first component, and an inner nut thread of a first thread direction, a hollow screw with a head and a hollow-cylindrical shaft having an adjustment thread matching the nut thread at a radial outside and a fastening thread with a second thread direction opposite to the first thread direction at a radial inside. The fastening thread interacts with a fastening screw of a second thread direction so that the first and the second component are fastenable via the tolerance compensation arrangement, wherein the hollow-cylindrical shaft comprises a disassembling protection at an axial end which faces away from the head. The disassembling protection prevents unscrewing of the hollow screw from the nut element.

A pressure-equalizing device for a housing with a lower part that has a fastening region for fastening to the housing and a connecting region; and an upper part which has a wall and a base, the upper part engaging the connecting region at an end of the lower part. The lower part has a projection defining an opening and having a clamping structure on a side that faces toward the end and also having multiple passages arranged in a ring shape between the opening and the clamping structure. The upper part has a second clamping structure. A membrane covers the opening, and a seal is arranged between the clamping structures and extends with a sealing region radially inward of the opening and seals the passages. A first path runs via the opening and the membrane, and a second path runs via the passages and the resilient seal component.

A setting tool for setting connecting elements from a material tape. The setting tool comprises a C frame, a drive unit arranged at the C frame with a setting head that is linearly movable in the direction of a counter tool, an engine for displacing the material tape, arranged adjacent to the setting head and rigidly connected to the setting head, a cutting device for cutting the material tape, located behind the engine and comprising a cutting part with a blade and an actuating part, the cutting part being rigidly connected to the setting head, and the actuating part being connected to the setting tool such that there is a relative operational movement between the actuating part and cutting part, wherein the setting head is movable by the drive unit into a cutting position such that the blade cuts the material tape during actuation.

A supply device for joining elements. The supply device includes a receiving portion for at least one joining element, in which a joining element is receivable and positionable in front of a first opening, a circumferentially closed hose of a flexible material which on a first end is connected with the receiving portion and on an opposite, second end with a discharge portion, as well as a flexible thrust element which is movable back and forth using a drive means through the hose between a retracted position in which a front end of the thrust element is located in the receiving portion and an extended position in which the front end is located in the discharge portion, so that the joining element which is positioned in front of the first opening is pushable with the thrust element out of the receiving portion through the hose into the discharge portion.

female coupling element (FCE) for relcasably connecting comprising: a polygonal, outer, flange-like attachment structure extending in circumferential direction at an open, first axial end and a dome-like retaining structure (with a polygonal outside having, in circumferential direction, a number of outwardly directed first protrusions and recesses, wherein the retaining structure is axially spaced from the attachment structure by means of a wall extending in a longitudinal direction of the coupling clement and circumferentially as well as inside of the FCE adjacent to the open first axial end, in circumferential direction a plurality of inwardly directed second protrusions and recesses, wherein with respect to a central longitudinal axis, the second protrusions are aligned to the first protrusions, and they comprise an axial extension such that the wall at the second protrusions is thicker than at the second recesses, a material of the FCE being compressible in circumferential direction in the portion of the first and the second recesses, so that during insertion, a male coupling clement's with a shaft causes a radially outwards directed deformation of the FCE in the portion of the first and second protrusions.

A rivet for connecting at least two components arranged one upon the other and are not pre-punched. The rivet has ahead, a shaft, a foot and a length L of the rivet between 7 mm≤L≤16 mm. The shaft has an outer diameter D S between 5.2 mm≤D S ≤5.6 mm, and a bore hole with diameter D B between 3.1 mm≤D B ≤3.5 mm and depth T B between 6 mm≤T B ≤15 mm. A bore hole volume V B in the shaft between V Bmin ≤V B ≤V Bmax with V Bmin =7.3 [mm 2 ]·L [mm] and V Bmax =0.9 [mm 2 ]·L [mm] arises. In an axial sectional view, the foot has a conical outer chamfer and a conical inner chamfer interconnected by a cutting edge, the inner chamfer transitions into an inner bore wall of the shaft via a circular arc section and the outer chamfer and the inner chamfer enclose a cutting angle W S in the range from 80°≤W S ≤90°.

Additive manufacturing method of a component with a thread opening and an insert thread at its radial inner wall, for a wire thread insert to form a standard thread. A 3D component drawing includes the thread opening and the insert thread arranged in there, which is defined by D H ⁢ C ≥ D HC ⁢ min = d + 0 . 7 ⁢ 5 × P tan ⁡ ( α 2 ) D 1 ⁢ H ⁢ C ≥ D 1 ⁢ HC ⁢ min = d + 0 . 1 ⁢ 2 ⁢ 5 × P tan ⁡ ( α 2 ) D 1 ⁢ H ⁢ C ≤ D 1 ⁢ HC ⁢ max = d + 0 . 1 ⁢ 2 ⁢ 5 × P tan ⁡ ( α 2 ) + 0 . 3 ⁢ 7 ⁢ 3 × P - 0 . 1 ⁢ 9 ⁢ 2 × P 1 . 2 ⁢ 1 P H ⁢ C = ( D HC ⁢ min - D 1 ⁢ HC ⁢ min ) × 1 . 6 × tan ⁡ ( α 2 ) with d nominal diameter of the screw thread α flank angle of the screw thread P pitch of the screw thread D HC nominal diameter of the insert thread D HC min smallest nominal diameter of the insert thread D 1HC core diameter of the insert thread D 1HC min smallest core diameter of the insert thread D 1HC max largest core diameter of the insert thread P HC pitch of the insert thread. Dimensions of the insert thread are adapted with correction factors. The drawing is converted with the adapted dimensions into a model for the component manufacturing.