Abstract: The invention relates to a replaceable die for pliers to press workpieces, such as for crimping pliers for pressing electrical connector elements. By replacing the die, the pliers can be adapted to the press operation to be performed, such as adapting a crimping pliers to different types and sizes of the connector elements to be pressed. The die according to the invention comprises a first and a second die half that can be inserted into the pliers together and removed from the pliers together. The two die halves each have a guide for this purpose. Both die halves each further have a first connecting element for releasably attaching the die to the pliers. Both die halves finally each have a second connecting element for releasably attaching the die to a storage fixture. This ensures that the die formed by the two die halves is held in the storage fixture during or after removal from the pliers, and remains therein for storage.

Abstract: The present invention relates to a positioning device for positioning an element to be crimped in a crimping tool, for example a wire end sleeve or an electrical connecting plug. The invention further relates to a crimping tool for crimping a connecting element to be situated in a pressing axis. To allow the element that will be crimped to be brought into the pressing axis, the positioning device has a retaining unit for retaining, about its periphery, the element that will be crimped. The retaining unit has a retaining opening which encompasses the pressing axis coaxially. The positioning device further permits the positioning of the element that will be crimped within the pressing axis, in order, in particular, to ensure the necessary insertion depth of the element to be crimped in the crimping tool. For this purpose, the positioning device of the invention has an axial stop, with which the position in the pressing axis of the element to be crimped can be defined.

Abstract: The invention relates to a tool for assembling a securing ring. The tool comprises two adjusting limbs which are connected to each other in a rotary joint and each free end of which has gripping means for engaging into an assembly opening of the securing ring. The tool further comprises a spindle drive provided between the adjusting limbs for changing the distance between the adjusting limbs. According to the invention, the rotary joint is arranged on the adjusting limb ends opposite the free ends, and the spindle drive is arranged between the rotary joint and the free ends of the adjusting limbs.

Abstract: A crimping tool has crimping dies arranged in a star shape directed at a crimping region and subjected to rotational action radially outwards for the crimping movement by means of an actuating part. The crimping dies are mounted about an axis of rotation transversely to the longitudinal extent thereof for pivoting-in and form an abutment region on the crimping region side of the axis of rotation. A radial movement and/or circumferential movement is brought about to coincide with the rotational action on the crimping dies, in order to obtain abutment of a crimping die in the abutment region thereof against the counter-abutment region of another crimping die adjacent to the crimping die in the pivoting direction or counter-pivoting direction.

Abstract: The invention relates to a pair of hand-operated pliers (1), in particular pressing pliers, with jaws (6, 7) and hand levers (4, 5), wherein the jaws (6, 7) are pivotable around a preferably common rotational axis (x). Furthermore, one hand lever (5) is connected by a joint to one of the jaws (7), and a pressure support is located between the hand levers (4, 5) for the formation of a toggle (K). In order to further improve a tool of this type, particularly with respect to the design of the pressure support, it is proposed that the pressure support consist of a support roller (18) arranged on one hand lever (4), and of a curved section (19) which is attached to the other hand lever (5) and which works together with the support roller (18).

Abstract: A double crimping tool for fastening an electrical conductor with insulation to a contact element, which includes a front crimping unit with a front drive cam plate and front crimping stamps for forming a front press section in the region of the stripped end of the conductor; and a rear crimping unit with a rear drive cam plate and rear crimping stamps for forming a rear press section in the region of the insulation of the conductor. The crimping stamps are displaced by rotation of the drive cam plates. By levers the two drive cam plates are connected to a shared force introduction element such that during the pressing procedure at first optionally the front or the rear drive cam plate is rotated by a predefined initial pressing angle while the other drive cam plate is made to rotate only after the first drive cam plate has attained the initial pressing angle.

Abstract: The invention relates to a transmission mechanism for a drive system, having at least one tensioning device and acting in two directions. For force transmission, the tractive device runs between a drive roll and an output roll, which are carried by a frame. A spring coupling is connected in the force transmission section between the drive roll and the output roll and has a nonlinear force-distance characteristic curve.

Abstract: The invention relates to a crimping tool having crimping indenters (7), wherein the crimping indenters (7) are arranged in a star shape directed at a crimping region and are subjected to rotational action radially outwards for the crimping movement by means of an actuating part, wherein the crimping indenters are further mounted about an axis of rotation (8) transversely to the longitudinal extent thereof for pivoting-in and form an abutment region (9) on the crimping region side of the axis of rotation (8).

Abstract: The present invention relates to a positioning device for positioning an element to be crimped in a crimping tool, for example a wire end sleeve or an electrical connecting plug. The invention further relates to a crimping tool for crimping a connecting element to be situated in a pressing axis. To allow the element that will be crimped to be brought into the pressing axis, the positioning device has a retaining unit for retaining, about its periphery, the element that will be crimped. The retaining unit has a retaining opening which encompasses the pressing axis coaxially. The positioning device further permits the positioning of the element that will be crimped within the pressing axis, in order, in particular, to ensure the necessary insertion depth of the element to be crimped in the crimping tool. For this purpose, the positioning device of the invention has an axial stop, with which the position in the pressing axis of the element to be crimped can be defined.

Abstract: The invention relates to a pair of hand-operated pliers (1), in particular pressing pliers, with jaws (6, 7) and hand levers (4, 5), wherein the jaws (6, 7) are pivotable around a preferably common rotational axis (x). Furthermore, one hand lever (5) is connected by a joint to one of the jaws (7), and a pressure support is located between the hand levers (4, 5) for the formation of a toggle (K). In order to further improve a tool of this type, particularly with respect to the design of the pressure support, it is proposed that the pressure support consist of a support roller (18) arranged on one hand lever (4), and of a curved section (19) which is attached to the other hand lever (5) and which works together with the support roller (18).

Abstract: The invention relates to a replaceable die for pliers to press workpieces, such as for crimping pliers for pressing electrical connector elements. By replacing the die, the pliers can be adapted to the press operation to be performed, such as adapting a crimping pliers to different types and sizes of the connector elements to be pressed. The die according to the invention comprises a first and a second die half that can be inserted into the pliers together and removed from the pliers together. The two die halves each have a guide for this purpose. Both die halves each further have a first connecting element for releasably attaching the die to the pliers. Both die halves finally each have a second connecting element for releasably attaching the die to a storage fixture. This ensures that the die formed by the two die halves is held in the storage fixture during or after removal from the pliers, and remains therein for storage.

Abstract: A double crimping tool for fastening an electrical conductor with insulation to a contact element, which includes a front crimping unit with a front drive cam plate and front crimping stamps for forming a front press section in the region of the stripped end of the conductor; and a rear crimping unit with a rear drive cam plate and rear crimping stamps for forming a rear press section in the region of the insulation of the conductor. The crimping stamps are displaced by rotation of the drive cam plates. By levers the two drive cam plates are connected to a shared force introduction element such that during the pressing procedure at first optionally the front or the rear drive cam plate is rotated by a predefined initial pressing angle while the other drive cam plate is made to rotate only after the first drive cam plate has attained the initial pressing angle.

Abstract: The invention relates to wire-stripping pliers with an automatic adaptation to various wire gauges and insulation thicknesses that has two pairs of pivotable jaws of which the jaws of the first, outer pair are configured as gripper jaws and are pivotable by means of a first jaw arm and a jaw part about a common point, and the jaws of the other, inner pair are configured as cutting jaws with blades that cut into the insulation, and with a pull rod attached to the cutter jaws and longitudinally moveable within the jaw body providing the stripping motion that is coupled with a second plier arm. At least one sliding wedge is mounted in a recess shaped to match the sliding wedge within the first plier arm or in the jaw part, whereby a first sliding wedge facing the cutting jaws is flat and a second sliding wedge resting in the recess is so shaped that the separation between both sliding wedges at a central area of the sliding wedge diminishes toward at least one of the two sliding wedge ends.

Abstract: The invention relates to wire-stripping pliers with an automatic adaptation to various wire gauges and insulation thicknesses that has two pairs of pivotable jaws of which the jaws of the first, outer pair are configured as gripper jaws and are pivotable by means of a first jaw arm and a jaw part about a common point, and the jaws of the other, inner pair are configured as cutting jaws with blades that cut into the insulation, and with a pull rod attached to the cutter jaws and longitudinally moveable within the jaw body providing the stripping motion that is coupled with a second plier arm. At least one sliding wedge is mounted in a recess shaped to match the sliding wedge within the first plier arm or in the jaw part, whereby a first sliding wedge facing the cutting jaws is flat and a second sliding wedge resting in the recess is so shaped that the separation between both sliding wedges at a central area of the sliding wedge diminishes toward at least one of the two sliding wedge ends.

Abstract: A continuous process is proposed for preparing cyclohexyl (meth)acrylate by acid-catalyzed esterification of cyclohexanol with glacial (meth)acrylic acid in the presence of an azeotroping agent for the water of esterification and of a polymerization inhibitor, comprising the following process steps: esterification of the (meth)acrylic acid (1) with cyclohexanol (2) in the presence of the acidic catalyst (3), of the polymerization inhibitor (4) and of the azeotroping agent for the water of esterification (5) in a reaction zone (A), in which the water of esterification is removed as an azeotrope with the azeotroping agent in a distillation zone attached to the reaction zone (A) to obtain a reaction effluent (process stage A) which is fed to a neutralization in which the acidic catalyst (3) and unconverted (meth)acrylic acid (1) from the reaction effluent from the esterification are neutralized by means of an alkaline solution to obtain crude cyclohexyl (meth)acrylate (process stage B); washing of the crude c

Abstract: A crimping pliers has a movable plier leg coupled to a fixed plier leg and a curved body in a head part of the pliers. Movable crimping punches are located in a pivoting plunger which is enclosed in the curved body. An adjusting and setting device having a threaded bush, a threaded spindle, a setting wheel, a fine scale and a rough scale is located on the fixed plier leg. The adjusting and setting device pivots the curved body allowing precise adjustment of the crimping punches via control cams in the curved body.

Abstract: The maintenance of a technical installation may be effected in an optimized manner with regard to time and costs. To this end, a method, a computer program product and a computer system are provided for maintenance, by way of which wear behavior of installation components may be predicted and a maintenance time and/or a maintenance action may be determined from this prediction.

Abstract: The invention relates to crimping pliers with an adjustable crimping gauge, in connection with which the crimping punches acting on the crimping contacts can be driven into and out of the crimping position by a pivoting plunger that guides the crimping punches and is actuated by the movable handle of the pliers and is guided in a curved body.

Abstract: A crimping tool for crimping lead end sleeves, contact sockets, or plugs on the electrical conductors, two crimping jaws arranged in a tool head section for performing crimping, pivotably mounted and axially fixed in the tool head section, and forming a crimping aperature of adjustable cross-section, the crimping jaws on their outer peripheral surfaces receiving a pivot lever and are bringable into and out of a crimping position by a pivoting drive movement of the pivot lever, a toggle lever mechanism driven by the handles and effecting the pivoting drive movement of the pivot lever, for a force-stroke compensation between parts of a force transmission system, the crimping jaws in a region of their crimping profile being formed by a die surface and a sliding surface, the die surfaces of the crimping jaws forming a die profile of closed shape in all crimping position within an adjustable crimping range, the sliding surface of each of the crimping jaws being in planar contact with the die surface of an adjacent

Abstract: A tool for crimping contact elements of electrical conductors and formed as pliers has main levers, pressing or mouth jaws which are formed on the main levers and closed in an effective region parallel, handles operative for bringing the pressing or mouth jaws to an opening position and also to a closing or pressing position, the both main levers which carry the pressing and mouth jaws being formed each as a one-arm lever which has an end opposite to the pressing and mouth jaws, a hinge pin turnably connecting the one-arm levers with one another at the ends, and an actuating lever associated with a movable main lever, formed as an angular lever and supported in an arm part of the immovable main lever, the actuating lever being drivingly connected with the movable main lever in a region of its pressing end mouth jaw via a lever element.