Tool carrier for a clinching device

Abstract

A tool carrier for a clinching installation, having a housing having a longitudinal axis (L), in which housing a downholder which is impinged by a first compression spring, an outer die which is impinged by a second compression spring, and an inner die which is rigidly connected to the housing are disposed coaxially within one another so as to be routed out of the housing) by way of the free ends of said downholder and dies, is distinguished in that the first compression spring is disposed so as to be coaxial within the second compression spring.

Claims

1. A tool carrier for a clinching installation, comprising: a housing having a longitudinal axis (L), in which the housing comprises: a downholder which is impinged by a first compression spring, an outer die which is impinged by a second compression spring, and an inner die which is rigidly connected to the housing are disposed coaxially within one another so as to be routed out of the housing by way of the free ends of said downholder and dies, wherein the first compression spring is disposed so as to be coaxial within the second compression spring, the second compression spring is supported on a hollow-cylindrical sleeve which is operatively connected to the outer die, a first ring which is operatively connected to the downholder being received in a sliding manner in an internal bore of said hollow-cylindrical sleeve, the first compression spring being supported on said first ring, and in that the first ring has a central bore through which the inner die is routed, and the cylindrical sleeve in an internal bore thereof has an encircling shoulder which is provided with a plurality of axial bores through which in each case one pin is routed, said pin by way of one end thereof bearing on the first ring and by way of the other end thereof bearing on the downholder.

2. The tool carrier according to claim 1, further comprising-a second ring disposed between the encircling shoulder of the sleeve and the first ring.

3. The tool carrier according to claim 2, wherein the external diameter of the second ring is smaller than a circle configured by the plurality of pins, and the second ring is supported on the first ring and the encircling shoulder.

4. The tool carrier according to claim 1, wherein the housing is configured in two parts, wherein a lower part provided with a central bore is capable of being screw-fitted onto an upper part that is connectable to a machine tool.

5. The tool carrier according to claim 4, wherein the housing is configured in three parts, wherein an inner internal part that comprises the inner die is capable of being screw-fitted into or onto the upper part.

6. A tool carrier for a clinching installation, comprising: a housing having a longitudinal axis (L), in which the housing comprises: a downholder impinged by a first compression spring, an outer die impinged by a second compression spring, wherein the first compression spring is disposed so as to be coaxial within the second compression spring, an inner die rigidly connected to the housing; a first ring operatively connected to the downholder; and a cylindrical sleeve comprising an encircling shoulder which is provided with a plurality of axial bores through which pins are routed, the pins bearing on a first ring operatively connected to the downholder.

7. The tool carrier according to claim 6, wherein the inner die and outer die are disposed coaxially within one another so as to be routed out of the housing.

8. The tool carrier according to claim 6, wherein the first compression spring is a helical spring.

9. The tool carrier according to claim 6, wherein the second compression spring is supported on the cylindrical sleeve which is operatively connected to the outer die and the first ring is received in a sliding manner in an internal bore of the cylindrical sleeve.

10. The tool carrier according to claim 9, wherein a force of the second compression spring is directed by the cylindrical sleeve to the outer die, and a force of the first compression spring is directed by the first ring to the downholder.

11. The tool carrier according to claim 6, wherein the second compression spring is disposed between the encircling shoulder of the cylindrical sleeve and the first ring.

12. The tool carrier according to claim 6, further comprising a second ring disposed between the encircling shoulder of the cylindrical sleeve and the first ring, wherein an external diameter of the second ring is smaller than an inner circle configured by the pins in the plurality of axial bores.

13. The tool carrier according to claim 12, wherein the second ring is supported on the first ring and the encircling shoulder such that the second ring serves as a spacer and for guiding the pins.

14. A tool carrier for a clinching installation, comprising: a housing; an outer die disposed to be co-axial in the housing; an inner die nested within the outer die and disposed so as to be co-axial in the housing such that the outer die moves in a vertical direction in relation to the inner die; a sleeve; an outer compression spring connecting to the outer die by the sleeve; an inner compression spring connecting to the housing; pins; and a downholder, by way of the pins, being pushed counter to a force of the inner compression spring in an opposite vertical direction into the housing, while the outer die and the inner die are moved in a second direction, wherein, upon achieving a predetermined force, the outer die bears on the sleeve conjointly with the sleeve sliding counter to the force of the compression spring into an interior of the housing, while the inner die continues to move toward the second direction and produces a clinch connection.

15. The tool carrier according to claim 14, wherein the outer die moves in a vertical direction in relation to the inner die, and the outer die is surrounded by the downholder which moves in the vertical direction V in relation to the outer die.

16. The tool carrier according to claim 14, wherein the downholder is connected to the inner compression spring by way of the pins which are disposed in a circle and by way of a ring.

17. The tool carrier according to claim 16, wherein the ring has an internal bore and which is supported on the compression spring.

18. The tool carrier according to claim 14, wherein the sleeve is a hollow-cylindrical shape comprising an upper flange and a lower encircling shoulder which protrudes into an internal bore and configures an inwardly directed flange, a plurality of bores are provided in the lower encircling shoulder, and the pins are supported on the flange of the downholder running through the bores.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) An exemplary embodiment of the invention is to be described in more detail hereunder with the aid of a drawing in which:

(2) FIG. 1—shows the perspective illustration of a clinching installation composed of a tool carrier and a female die;

(3) FIG. 2—shows a view of the clinching installation according to FIG. 1;

(4) FIG. 3—shows the section along the line III-Ill according to FIG. 2;

(5) FIG. 4—shows a perspective longitudinal section through the tool carrier according to FIG. 1;

(6) FIG. 5—shows the view of a tool carrier; and

(7) FIG. 6—shows the section along the line VI-VI of the tool carrier according to FIG. 5.

DETAILED DESCRIPTION

(8) The clinching installation is composed of the tool carrier 5 and the female die 50. The components A, B to be joined are placed between the tool carrier 5 and the female die 50 and are then connected to one another by forming by way of the tools 20, 30 that are received in the tool carrier 5.

(9) The tool carrier 5 is composed of a three-part housing 5.1, the lower part 1 thereof, provided with a central bore 4, being capable of being screw fitted onto the upper part 2, and the internal part 3 thereof by means of a plurality of screws 6 being screwed to the upper part 2 or being inserted into the latter.

(10) A downholder 10, an outer die 20 and an inner die 30 are provided so as to be nested in one another and so as to be disposed so as to be mutually coaxial in the housing 5.1. The inner die 30 is inserted in the internal part of the housing part 3 and by way of said internal part of the housing part 3 is connected directly to the ram 40 of the machine tool (not illustrated in more detail here) which drives the tool carrier 5 in the axial direction V. The outer die 20 can move in the vertical direction V in relation to the inner die 30. The outer die 20 is surrounded by the downholder 10 which can move in the vertical direction V in relation to the outer die 20. The outer die 20 by way of the sleeve 21 is connected to a compression spring 22; the downholder 10 is connected to the compression spring 13 by way of pins 11 that are disposed on a circle and by way of a ring 12.

(11) The sleeve 21 is configured so as to be hollow-cylindrical, having an upper flange 21.1 and a lower encircling shoulder 21.2 which protrudes into the internal bore 21.3 and configures an inwardly directed flange. A plurality of bores 21.4 are provided in the lower shoulder 21.2, pins 11 that are supported on the flange 10.1 of the downholder 10 running through said bores 21.4. The pins 10 by way of the other end thereof bear on a ring 12 which has an internal bore 12.1 and which is supported on the compression spring 13.

(12) The outer die 20 at that end thereof that is located in the housing 5.1 is widened so as to form a flange 20.1. In order for the two joining parts A, B to be connected to one another, the tool carrier 5 is moved toward the joining part A that faces said tool carrier 5.

(13) When the tool carrier 5 lands on the upper joining part A and is further moved thereonto, the joining force applied by the ram 40 acts on the joining parts A, B. The downholder 10, by way of the pins 11 and the ring 12, is pushed counter to the force of the compression spring 13 in the opposite vertical direction V (upward in the drawing) into the housing 5.1, while the outer die 20 and the inner die 30 are moved further in the direction toward the joining parts A, B. Upon achieving a specific force, the outer die 20 which by way of the flange 20.1 thereof bears on the sleeve 21, conjointly with the sleeve 21, slides counter to the force of the compression spring 22 into the interior of the housing 5.1, while the inner die 30 continues to move toward the joining parts A, B and produces the clinch connection in that said inner die 30 moves into the female die 50.