Abstract: A tool making joints of clinch type between two or several sheet formed members, which tool comprises two separate tool parts, a first tool-part with a punch and a second tool-part provided with a die which co-operate for producing said joint. The punch is arranged to be driven in a linear movement in the direction of the co-axial die provided with a die cavity at the bottom of which an anvil (3) is arranged. A spring element (5) having the general form of a cylindrical cage has a surface which has been provided with a number of slots to form a corresponding number of long elastic arms (11) partitioned around the circumference of the cage with their free ends at the upper edge of the cage.

Abstract: A matrix for making clinch-type joints between at least two members of sheet-formed material of the same or different types. Said matrix (1) has the form of a thin plate, and comprises two generally flat sheet-formed matrix elements (2, 3, 2?, 3?, 102, 103) arranged movable relative to each other so that they could slide on an essentially flat support surface (31, 34, 134) in a substantially translational or pivotal movement between a first initial position in which said matrix elements (2, 3, 2?, 3?, 102, 103) form between them at least one essentially closed matrix cavity (23, 23?, 123) and a second position corresponding to an open position for said at least one matrix cavity, said matrix elements (2, 3, 2?, 3?, 102, 103) being arranged actuated in the direction of said first position by at least one actuation means (4, 10, 104). An apparatus including such a matrix is also proposed.

Abstract: Method and apparatus for joining superimposed sheet formed material with an intermediate layer of adhesive together by means of gluing in combination with clinching, at which a tool comprising a first and a second co-axial tool parts, co-operate for producing said joint, said first tool part comprising a punch (1) with an impact surface, surrounded by a stripper (2) with an impact surface, said second tool part comprising a die with an impact surface surrounding a die cavity at the bottom of which an anvil with an impact surface is arranged. In a step before making the clinch joint positioning and locking said punch (1) and said stripper (2) of said first tool part relative to each other so that said impact surfaces present a first, common, squeezing surface (6) of the first tool part, having essentially the same size and form as a second, squeezing surface of the second tool part.

Abstract: A tool making joints of clinch type between two or several sheet formed members, which tool comprises two separate tool parts, a first tool-part with a punch and a second tool-part provided with a die which co-operate for producing said joint. The punch is arranged to be driven in a linear movement in the direction of the co-axial die provided with a die cavity at the bottom of which an anvil (3) is arranged. A spring element (5) having the general form of a cylindrical cage has a surface which has been provided with a number of slots to form a corresponding number of long elastic arms (11) partitioned around the circumference of the cage with their free ends at the upper edge of the cage.

Abstract: A matrix for making clinch-type joints between at least two members of sheet-formed material of the same or different types. Said matrix (1) has the form of a thin plate, and comprises two generally flat sheet-formed matrix elements (2, 3, 2?, 3?, 102, 103) arranged movable relative to each other so that they could slide on an essentially flat support surface (31, 34, 134) in a substantially translational or pivotal movement between a first initial position in which said matrix elements (2, 3, 2?, 3?, 102, 103) form between them at least one essentially closed matrix cavity (23, 23?, 123) and a second position corresponding to an open position for said at least one matrix cavity, said matrix elements (2, 3, 2?, 3?, 102, 103) being arranged actuated in the direction of said first position by at least one actuation means (4, 10, 104). An apparatus including such a matrix is also proposed.

Abstract: Tool for joining two or several sheet formed members, comprising two separate tool parts, a first tool-part with a punch and a second tool-part provided with a die which co-operate for producing said joint, the punch is arranged to be driven in a linear movement is in the direction of the co-axial die provided with a die cavity at the bottom of which an anvil is arranged, the die is further provided with movable die elements (108, 208, 208?, 208?) arranged sliding laterally on a support surface (105) against the forces from a spring element (303, 303?), said die comprises at least two movable die elements (108, 208, 208?, 208?), the die is provided with at least one support element (103, 203, 203?, 203?) provided with an essentially horizontal support surface (110, 210) for said sheet formed members and said support elements (103, 203, 203?, 203?) are not forming part of the sidewall (109) of the die opening in its initial closed position.

Abstract: Method and apparatus for joining superimposed sheet formed material with an intermediate layer of adhesive together by means of gluing in combination with clinching, at which a tool comprising a first and a second co-axial tool parts, co-operate for producing said joint, said first tool part comprising a punch (1) with an impact surface, surrounded by a stripper (2) with an impact surface, said second tool part comprising a die with an impact surface surrounding a die cavity at the bottom of which an anvil with an impact surface is arranged. In a step before making the clinch joint positioning and locking said punch (1) and said stripper (2) of said first tool part relative to each other so that said impact surfaces present a first, common, squeezing surface (6) of the first tool part, having essentially the same size and form as a second, squeezing surface of the second tool part.

Abstract: Tool for joining two or several sheet formed members, comprising two separate tool parts, a first tool-part with a punch and a second tool-part provided with a die which co-operate for producing said joint, the punch is arranged to be driven in a linear movement is in the direction of the co-axial die provided with a die cavity at the bottom of which an anvil is arranged, the die is further provided with movable die elements (108, 208, 208?, 208?) arranged sliding laterally on a support surface (105) against the forces from a spring element (303, 303?), said die comprises at least two movable die elements (108, 208, 208?, 208?), the die is provided with at least one support element (103, 203, 203?, 203?) provided with an essentially horizontal support surface (110, 210) for said sheet formed members and said support elements (103, 203, 203?, 203?) are not forming part of the sidewall (109) of the die opening in its initial closed position.

Abstract: Two or several overlaying sheet formed members are joined together using an essentially coaxial arrangement of a punch, a die with a die cavity, and an anvil.

Abstract: A tool for making joints between sheet-formed members (4, 5) comprising a first tool-part (1, 2, 3) with a punch (1) and a side pressing element (2) and a second tool-part(6 ,11) provided with a support surface (9) from which an anvil (8) erects, a matrix (6') comprising at least two matrix-parts (6) each having an upper active matrix surface (13) and being arranged around said anvil (8). Each matrix part comprises a portion (14) arranged sliding against said support surface (9) and being applied against the lateral surface of said anvil (8) by means of elastic means (7). Retention means (10) are arranged limiting the longitudinal movement of the matrix parts during the retraction of the punch (1). The upper active matrix surface (13), the portion (14) arranged sliding against said support surface (9) and said retention means (10) are arranged in that order from the top of the second tool-part (6, 11).

Abstract: Apparatus for carrying out an operation on a mechanical workpiece which operation comprises at least one stroke, or relative movement, along a predetermined path, of at least two tool members (4,5) each being arranged on a tool carrying member (1,2). The mechanical workpiece is positioned between the tool members (4,5) and the tool carrying members (1,2) are approached to each other in a first part of said at least one stroke. At least one force transferring element is arranged to be inserted by means of a low force during said first part of said stroke into a position between at least one tool carrying member and an activation element for transferring a high force during a second part of said stroke between said activation element and said at least one tool carrying member.

Abstract: Method and Apparatus for carrying out an operation, such as pressing, riveting, cutting, etc., on a mechanical workpiece which operation comprises at least one stroke, or movement, along a predetermined path, of at least two active members (6,7) each being arranged on a carrying unit (1,2). The mechanical workpiece is first positioned between the active members (6,7). Thereafter the carrying units (1,2) for the active members are approached to each other in a first part of the stroke. The carrying units (1,2) are then locked to each other at the end of said first part of said stroke and a second part of said stroke is carried out by way of the relative movement between the active members (6,7) to achieve the desired effect on the said workpiece.