DE102021003576A1 - Socket pins for attaching to a tool component of a multi-part forming tool - Google Patents

Abstract

The present invention relates to a socket pin (10) for fastening to a tool component (100) of a multi-part forming tool, with a rod (12) whose outer circumference is adapted to a through-bore (102) of the tool component (100) and within the through-bore ( 102) is supported, and a portion (14) at a first end (16) of the rod (12) is shaped as a guide pin which, in use, is received by a further tool component (100), the rod (12) being connected to its second end (18) and has a hole (20) open at the end (18) and extending along the rod (12), and an actuating pin (22) is at least partially received in the hole (20) and can be reversibly positioned within the hole (20) in a locking position and in a Unlocking position is to be brought and at least one opening (24) extends between the outer circumference and the hole (20), which accommodates a locking bolt (26) so that it can be displaced radially and transversely to the hole (20). mmt, the locking bolt (26) protruding beyond the outer circumference of the rod (12) in the locking position of the actuating pin (22) and not in the unlocking position of the actuating pin (22). It is proposed that the hole (20) extends into the section (14) of the rod (12) and the aperture (24) is located within the guide pin shaped portion (14).

Description

The present invention relates to a socket pin. Such socket pins are used in the field of multi-part forming tools, for example to connect a component such as a hold-down device, a sheet metal holder or a spring base from a pressing, punching or other forming tool to another component such as an upper part. For this purpose, the socket pin is fastened, for example, to the upper part, the outer circumference of which is adapted to a through-bore of the tool components and is supported within the through-bore.

In order to fasten the locking pin according to the example described above, according to VDI standard 3365, for example, a full-circumferential groove is provided on the outer circumference, into which a locking washer engages, which in turn is screwed to a large tool component with a separate screw. It goes without saying that this design is highly impractical, considering that such detachable attachments often have to be undone and created during maintenance, repair and assembly work. Lock washer and screw must be held at the same time and can get lost or, in the worst case, even fall into the tool.

A generic locking pin is in the DE 2019 204 763 A1 _disclosed. This socket pin is designed in one piece and can be attached to the pressing tool with one hand. The socket pin comprises a rod, the outer circumference of which is adapted to a through-hole of the pressing tool and is supported within the through-hole, and a section at a first end of the rod is shaped as a guide pin, which is accommodated by a further tool component in the position of use, the rod being a has a hole which is open towards its second end and extends along the rod and at least partially received by the hole is an actuating pin which can be reversibly brought into a locking position and into an unlocking position within the hole and which is located between the outer periphery and the hole at least one Extends opening that receives a locking bolt radially and transversely to the hole displaceable, wherein the locking bolt protrudes in the locking position of the actuating pin on the outer periphery of the rod and not in the unlocking position of the actuating pin.

What is particularly disadvantageous about this previously known form of socket pin is that the locking pin is arranged near the second end in order to be brought into engagement in a locking recess specially created in the through hole of the pressing tool. This locking recess, which is specially adapted to the locking pin, must be created precisely in order to enable the guide pin to be positioned precisely. For this, the upper part would have to be reworked mechanically.

This previously known locking pin cannot simply be used as a replacement part for a locking pin according to VDI standard 3365 or VW standard 39D 854.

In addition, operating the actuating element by simply “pressing” to move from the unlocking position to the locking position of the locking bolt appears to be less reliable. If an object falls onto the actuating element during operation, the locking bolt could unintentionally return to the unlocked position.

It is therefore an object of the present invention to specify an improved socket pin which avoids the disadvantages mentioned above using technically simple means.

This object is solved with the features of the main claim. According to the invention, the hole extends into the portion of the rod and the opening is located within the pilot shaped portion. Advantageously, in the locking position, the locking bolt does not protrude from the rod within the through bore. Rather, the locking bolt protrudes in the area of the guide pin on one of the tool component sides and thus reliably prevents it from accidentally falling out of the tool component.

This opening can be round, rectangular, oval or polygonal and can movably support the correspondingly shaped locking bolt. The locking bolt can be flattened on a side facing the tool component, for example in order to provide an enlarged contact surface in the use and locking position. This flattened side can also improve tilting or tilting of the locking bolt during its radial movement into or out of the opening within the opening adapted to it.

Such socket pins according to the invention are to be used in particular for so-called large tools with dimensions of several meters in length, width and/or height. This locking pin according to this invention have dimensions and are made of a material that has a load capacity of more than 200kg, preferably more than about 450kg and up to about 850kg in accordance with the above standards.

The socket pins designed according to the present invention can be used in a practical manner without tools as a replacement for the previously known socket pins. In particular, the locking pin according to the invention lacks the groove for the locking washer running on the outer periphery of the rod and is therefore somewhat simpler in terms of design and production technology. In other words, the outer perimeter of the rod of the locking pin of this invention is grooveless or does not provide a groove suitable for the lock washer.

According to an advantageous development of the present invention, it is provided that the actuating pin pushes the locking bolt outwards within the opening in the locking position. The operating pin may have a circular, quadrilateral, square cross-section and is movably supported in the hole extending along the rod. The part of the actuating pin running in the area of the opening can have an enlarged outer circumference in order to press the locking bolt outwards in the locking position. Alternatively, the actuating pin can have a narrow point, in which case the locking bolt then no longer protrudes beyond the outer circumference and the actuating pin is therefore in the unlocked position. If the pin is moved in such a way that approximately the full or largest pin circumference acts on the locking bolt, the locking position is reached and the locking bolt protrudes.

When the large tool is assembled, free space is provided for inserting the guide pin, for example from the upper part. In the position of use, the tool components move and the guide pin limits this relative movement. In most cases it is intended that in a working cycle the upper part comes into contact with a part of the guide pin in an upward movement. However, the free space is larger on the opposite half of the guide pin and there is usually no contact with the guide pin. The present invention uses this “lower” free space for the use of the locking bolt that protrudes in the locking position. In other words, the locking pin is shaped in such a way that, in the use position, it is not touched by the tool component that provides the clearance.

In order to ensure that the socket pin is released, a spring element can be introduced within the opening, the spring element being relaxed in the unlocked position of the actuating pin and pressing the locking bolt in the direction of the hole. The spring element can be a permanently elastic ring or a spiral spring. When the locking bolt moves equatorially into the locking position, this spring element is tensioned and thus “stores” the energy required for the locking bolt to move backwards in the rod.

It is obvious to the person skilled in the art and is within the scope of protection of the present invention if the spring element is arranged in the rod in such a way that the locking bolt is reliably pressed “outwards” into the locking position by the spring element. Also covered by the present invention is the variant that the actuating pin pushes or pulls the locking bolt equatorially in the direction of the hole when changing from the locking position to the unlocking position, so that the locking bolt is arranged completely inside the rod.

Advantageously, the actuating pin is rotatably mounted within the hole or is supported within the hole in such a way that it can be brought from the locking position to the unlocking position or vice versa by means of a rotary movement or a pushing or pulling movement. The reversible change from one position to the other position of the locking bolt can also be achieved by a combination of the rotating and the pulling or pushing movement. If the actuating pin is pushed forward in the hole, for example, so that the narrow point of the actuating pin comes into contact with the locking bolt, the locking bolt, which is loaded with spring force, can move inwards with an equatorial movement and assume its unlocking position. If, for example, the actuating pin is only tapered in segments, turning the actuating pin could already trigger this reversible movement of the locking bolt. The combination motion required to change the position of the locking pin most likely prevents accidental disengagement of the socket pin from the tool component.

In order to effectively prevent the socket pin from slipping unintentionally, an advantageous development of the invention provides that a stop surface is formed at the second end of the rod, which protrudes beyond the outer circumference of the rod. Such an overhang ensures that the socket pin rests in the locking position on both opposite sides of the tool component, which are pierced by the through hole. The stop surface can run approximately parallel to a connecting line from the center of the hole to the center line of the locking bolt. In terms of the replacement idea, a "stopper" screw can then be inserted into the threaded hole tion of the tool component must be screwed in "once", with the "stopper" screw head being brought into contact with the stop surface of the socket pin according to the invention. The "stopper" screw can have a round, square, polygonal or partially flattened "stopper" screw head with a suitable drive.

The distance between the center of the through hole and the threaded hole for the retaining screw of the lock washer on the tool component are predetermined by the standards mentioned above. With predetermined dimensions of the "stopper" screw head, the distance of the stop surface from the center of the rod can be selected accordingly in order to avoid "twisting" of the socket pin according to this invention in the through hole. The "stopper" screw head is in contact with the stop surface and prevents further rotation within the through hole of the tool component. If the locking bolt is to protrude “downwards” in the locking position, the angle measured anti-clockwise between the connecting line and the surface perpendicular to the stop surface is approximately 90°.

This type of “anti-twist device” protects the locking bolt, which prevents it from moving out of the free space of the other tool components when the tool is in operation. The locking pin can also be rotated by modifying its cross section, in particular in the area of the rod or in the area of its second end. Static friction can be increased, for example, by changing the material properties on the outer circumference.

Alternatively, the rod or the second end can be fixed with the abutment surface by means of a shaped disc placed on the rod and prevent the rod from twisting, since the shaped disc has a depression shaped as a negative. The shaped disk can also be fixed flat with a screw or with other fastening means. This screw for the shaped disc can in turn be screwed into the threaded hole for the locking screw according to the standard mentioned above. A socket can be set in the through hole of the tool component. This socket variant can also partially cover an approximately circular through-bore in such a way that a circular section is missing and a non-round through-opening for the rod is created and the rod adapted to it can no longer rotate within the through-bore.

A further development of the present invention arises when a head part is arranged at the second end of the rod, which head part rotatably receives a rotary switch knob and acts on the actuating pin. The head part also provides, for example, the abutment surface and forms an anchor which prevents the rod from being pushed through the through bore of the tool component. In particular, the rotary switch button avoids an unintentional change from the locked to the unlocked position if the rotary switch button is merely pressed. The actuating pin does not protrude from the rod and is protected from damage. The knob can be designed to be removable and thus prevent any accidental actuation. If the socket pin is to be inserted or removed according to this invention, the rotary switch knob can first be applied in order to be able to move the actuating pin.

According to an advantageous development, the rotary switch knob can be connected to the actuating pin in a rotationally fixed manner or can be designed in one piece. The rotary switch knob is thus captively arranged on the socket pin and allows a switching movement to be transmitted via the rotary switch knob to the actuating pin. Provision can also be made for the rotary switch knob to have at least one flange which is at least partially accommodated by a ring-segment-like recess in the head part, and the flange or the recess is designed in such a way that the rotary switch knob engages in two positions, with the flange preventing a rotary movement of the Actuating pin and rotary switch knob limited. The rotary switch knob is guided in the head part of the socket pin and the switching movement is predetermined, which in turn can be transferred to the actuating pin. The position of the rotary switch knob relates to the position in relation to the locking bolt, one position being associated with the unlocking position and another position of the rotary switch knob being associated with the locking position. The latching can take place, for example, by means of lamellae on one side of the flange, which are held in the recess with a friction fit. Only after overcoming the static friction can the rotary switch be moved to a different position. Markings can be attached to the head part to describe the two positions "speaking".

In order to avoid unwanted or accidental unlocking of the socket pin, the recess in the head part can be developed according to the invention. It can be advantageous if two ring segments arranged one above the other and twisted relative to one another are cut out on the head part and the flange on the rotary switch knob can be rotated within the recess in an approximately Z-shape or step-like manner and the actuating pin executes an axial position change in the longitudinal direction of the rod. It is sufficient in this embodiment of the invention not that the rotary switch knob is rotated in one direction from, for example, the locked position described above. In addition, the rotary switch knob must be pushed out or into the socket pin and then turned further in this direction - for example clockwise. Only then does the rotary switch knob reach the unlocked position and the actuating pin moves into the unlocked position.

Pushing the rotary switch knob into the locking pin can be made so "more difficult" that unintentional unlocking of the locking pin is practically impossible. For this purpose, a prestressing element can be supported on the socket pin, which presses in at least the rotary switch knob inside the head part. Only by overcoming the pretensioning force can the rotary knob be either pulled out or pushed in. Again, simply turning the rotary switch knob is not enough to cancel the unlocked or locked position of the locking bolt.

The side of the head part that is supported on the second end of the rod can protrude at least partially beyond the outer circumference of the rod. In this way, a counter bearing can be created around the entire circumference of the through-hole of the tool component, which additionally delays twisting of the socket pin within the through-hole.

• - Betätigen des Drehschaltknopfes, um den Betätigungsstift in die Entriegelungsposition zu bringen
• - Einbringen des Stabs des Steckbolzens in die Durchgangsbohrung der Werkzeugkomponente, bis der Führzapfen an anderer Seite der Werkzeugkomponente herausragt
• - Erneutes Betätigen des Drehschaltknopfes, um den Betätigungsstift in die Verriegelungsposition zu bringen und den Arretierbolzen an der anderen Seite der Werkzeugkomponente in Anlage zu bringen.

The socket pin according to the invention is part of an assembly and replacement process. The assembly procedure includes the steps:

• - Operate the rotary switch knob to bring the operating pin to the unlocked position
• - Insert the rod of the locking pin into the through hole of the tool component until the guide pin protrudes on the other side of the tool component
• - Press the rotary switch again to bring the actuating pin into the locked position and bring the locking pin into contact with the other side of the tool component.

• - Sicherungsschraube und Sicherungsscheibe demontieren und Steckbolzen nach dem Stand der Technik und/oder der genannten Normen aus der Werkzeugkomponente entnehmen
• - Steckbolzen nach dieser Erfindung montieren und Verdrehsicherung erstellen.

The exchange procedure also includes the following steps:

• - Dismantle the locking screw and lock washer and remove the state-of-the-art socket pin and/or the specified standards from the tool component
• - Mount socket pins according to this invention and create anti-twist protection.

Further advantageous embodiments of the invention result from the accompanying drawings. The invention will now be described in more detail using exemplary embodiments with reference to the accompanying drawings.

• 1 eine Schnittansicht eines ersten Ausführungsbeispiels eines erfindungsgemäßen Steckbolzens in Gebrauchsstellung;
• 2 eine teilgeschnittene Seitenansicht eines Steckbolzens nach einem zweiten Ausführungsbeispiel;
• 2a eine Teilansicht eines erfindungsgemäßen Steckbolzens in Entriegelungsposition;
• 3 eine Frontalansicht eines erfindungsgemäßen dritten Ausführungsbeispiels eines Steckbolzens;
• 3a eine Schnittansicht des in 2 gezeigten Ausführungsbeispiels; und
• 3b eine weitere Schnittansicht des in 2 gezeigten Steckbolzens nach dieser Erfindung.

In the drawings show:

• 1 a sectional view of a first embodiment of a socket pin according to the invention in the position of use;
• 2 a partially sectioned side view of a socket pin according to a second embodiment;
• 2a a partial view of a socket pin according to the invention in the unlocked position;
• 3 a front view of a third embodiment of a socket pin according to the invention;
• 3a a sectional view of the in 2 shown embodiment; and
• 3b another sectional view of the in 2 shown socket pin according to this invention.

Unless otherwise stated below, the following description always refers to all exemplary embodiments 1 until 3b , where the same reference numbers always describe the same design features.

1 shows a socket pin 10 for fastening to a tool component 100 of a multi-part forming tool, the tool components 100 moving back and forth in relation to one another in the working cycle—here during a punching process. The socket pin 10 has a rod 12 whose outer circumference is fitted to a through hole 102 of one of the tool components 100 and is supported within the through hole 102 . The rod 12 has an approximately round cross-section in order to be inserted without play in the mostly circular through hole 102 in a form-fitting manner. A section 14 at a first end 16 of the rod 12 is shaped as a guide pin, which is accommodated in the use position by another tool component 100 and to limit the reciprocating movement of the two tool components 100, here the upper part of the punching tool and the hold-down device. The rod 12 includes a hole 20 open to its second end 18 and extending along the rod 12 opposite the first end 16 . The hole 20 at least partially receives an actuation pin 22 reversibly positionable within the hole 20 to a locked position and an unlocked position. Between the outer circumference of the rod 12 and the hole 20 extends at least one opening 24, which has a locking pin 26 radially and transverse to the hole 20 slidably receives. As in 1 shown, the locking bolt 26 protrudes in the locking position of the actuating pin 22 on the outer circumference of the rod 12 and not in the unlocking position of the actuating pin 22 shown elsewhere.

The hole 20 extends into the section 14 of the rod 12. The opening 24 is arranged inside the section 14 shaped as a guide pin. The opening 24 is so far away from the second end 18 of the rod that the locking bolt 26 protruding from the opening 24 has an outer section on one side of the tool component 100 and the part of the actuating pin 22 protruding through the through hole 102 on an opposite side of the tool component 100 is brought to the plant. The socket pin 10 hardly moves in relation to the through hole 102 in the position of use. The part of the actuating pin 22 that rests on the opposite side of the tool component 100 is designed as a rotary switch knob 38 in order to bring the actuating pin 22 from the locking position shown into the unlocking position by turning it .

The actuating pin 22 is shaped in such a way that it is in contact with the locking bolt 26 mounted in the opening 24 . In the locking position shown, the actuating pin 22 pushes the locking bolt 26 outwards within the opening 24 . The locking pin 26 then protrudes and blocks the socket pin 10 from being pulled out or falling out of the through hole 102.

If the actuating pin 22 - as in 2a shown - in the unlocked position not in contact with the locking pin 26, a spring element 28, which is inserted within the opening 24 and is relaxed in this position, urges the locking pin 26 towards the hole 20 and into the rod 12.

At the in 1 In the exemplary embodiment shown, a borehole adapted to the external dimensions of a coil spring is introduced into the rod 12, with the coil spring being penetrated as a spring element 28 by the locking bolt 26 and being inserted into the borehole. In order to arrange the spiral spring and the locking bolt 26 within the rod 12, a threaded pin with a through hole adapted to the dimensions of the locking bolt 26 is screwed in from the outside. This through hole forms the opening 24 here. The spring element 28 is supported on a collar on the locking bolt 26 .

Alternatively, the rod 12, for example, in the plane of the paper 1 be divided and when assembled, the actuating pin 22, the locking bolt 26 with spring element 28 is inserted into the opening 24 before the other half of the rod 12 is attached. The first variant is suitable for socket pins 10 with a load capacity of more than approximately 300 kg, while a variant with a multi-part rod 12 is sufficient for a load capacity of approximately 200 kg to approximately 450 kg.

The actuating pin 22 is in accordance with 1 pivoted within the hole 20 to be brought from the locked position to the unlocked position or vice versa by means of a rotary movement. If the actuating pin 22 is rotated by 180° in this exemplary embodiment, the indentation 23 on the actuating pin 22 moves and points in the direction of the locking bolt 26. The indentation 23 is designed in such a way that the part of the locking bolt 26 pointing in the direction of the hole 20 fits into the indentation 23 fits in. The locking bolt 26 is pressed into the rod 12 and unlocked by the spring element 28 . The socket pin 10 can then be both inserted into the through hole 102 and removed.

2 shows a socket pin 10 with an actuating pin 22 in the locking position, which allows the locking pin 26 to protrude in section 14 . The opening 24 for the locking bolt 26 is arranged in the first half, in the first third or in the first quarter of the section 14 which is directly connected to a connection point 13 between the section 14 and the rod 12 .

The operating pin 22 is supported within the hole 20 in such a way that a rotating movement and a pushing or pulling movement are possible according to the locking position 2 or the unlocking position according to 2a to take

Opening 24 is created by a first bore in section 14 and slidably supports locking pin 26 . On the opposite side of the rod 12 there is a mounting opening 50 which corresponds to the dimensions of the spring element 28 and extends over the hole 20 into a portion of the opening 24 which is intended for receiving the spring element 28 . The spring element 28 is supported on the mushroom head 25 , which is arranged on the part of the locking bolt 26 pointing toward the hole 20 .

As in 2a As can be seen, the actuating pin 22 is provided there with a beveled, stepped stop 15 which, when moving in the direction of movement 21 towards the mushroom head 25, pushes the locking bolt 26 outwards and tensions the spring element 28. If the actuating pin 22 reaches the in 2 locking position shown, part of the stop 15 protrudes into the cup end 17 of the Hole 20. The mushroom head 25 of the locking bolt 26 rests in a constriction 19 of the actuating pin 22 arranged behind the stop 15 and thus latches it securely in the locking position.

The embodiment of the socket pin 10 in 2 has a head portion 36 located at the second end 18 of the rod 12 which rotatably receives a rotary switch knob 38 and acts on the actuating pin 22. The rotary switch knob 38 protrudes from the head part 36, which is formed in two parts, and has a finger groove 39 on each of its flanks for better handling by hand. the inside 2 The first part of the head part 36 shown on the left is integrally formed on the rod 12 and forms an offset 35 which extends around the through hole 102 on the tool component 100 . As a result, an insertion depth of the socket pin 10 is limited and the protruding locking pin 26 is pushed out in the locking position on the other side at a predetermined distance therefrom. This distance thus corresponds approximately to the length of the through hole 102.

In this first part of the head part 36 , a prestressing element 44 is supported on the socket pin 10 and presses in at least the rotary switch knob 38 within the head part 36 . The rotary switch knob 38 is non-rotatably connected to the actuating pin 22 and is formed in one piece.

the inside 2 The rotary switch knob 38 shown has a flange 40 on each of two opposite sides, which are at least partially accommodated by a recess 42 in the shape of a ring segment in the head part 36 . The flange 40 is configured such that the rotary switch knob 38 latches in the position shown.

3a shows another sectional view of the in 3 illustrated socket pin 10. The flanges 40 extending radially outwards from the center point M are received in a recess 42 which is defined by a ring segment 43 cut out on the head part 36 and limits a rotational movement of the actuating pin 22 and the rotary switch knob 38 in this plane. In this in 2 shown locking position, the rotary knob can only be moved clockwise in the direction of movement 21.

After a 90° rotary movement of the rotary switching head (38), the flanges 40 are then transverse thereto and allow—supported by the pretensioning element 44—to be displaced within the recess 42 into the second level arranged above it. This second level is through the section view in 3b shown. The recess 42 is twisted to the recess 42 in the first plane. The flanges 40 on the rotary switch knob 38 can be rotated stepwise within the composite recess 42 of the first and second levels, with the actuating pin 22 performing an axial position change in the longitudinal direction of the rod 12 . This change in position pulls the actuating pin 22 into an unlocking position similar to that shown in FIG 2a shown.

In the 3b shown level of the head part 36 is completed, as in accordance with the front view 3 apparent. Thus, the flanges 40 in the recesses 42 ensure that the biasing element 44 does not push the rotary switch knob 38 out of the head part 36 .

Practically below the plane of the paper 3 can be seen in the vertical alignment of the locking bolts 26 in the locking position of the actuating pin 22. So that the locking bolt 26 protruding beyond the rod 12 is always securely arranged in the free space 104 of the tool, an anti-twist device is provided. For this purpose, the socket pin 10 has a stop surface 30 on the second end 18 of the rod 12, which protrudes beyond the outer circumference of the rod 12 and runs approximately parallel to a connecting line 32 from the center M of the hole 20 to the center of gravity of the locking pin 26 and parallel to the center line 34 . The stop surface 30 also prevents a removed or not yet installed socket pin 10 from rolling away after it has been made available.

In 3 two variants of an anti-twist device are shown. With a screw 48 which, for example, is screwed into the threaded hole previously created for the locking screw in the tool component 100 and rests against the stop surface 30 of the socket pin. Alternatively, a plate 54 is fixed with this screw 48 and attached to the tool component 100 which has a milled portion corresponding to the outer contour 52 . This cutout can also be machined directly into the side of tool component 100 around through hole 102 .

The rotary switch knob 38 is provided with an arrow marking 46 which indicates the position of the actuating pin 22 within the socket pin 10 in conjunction with pictograms as further markings 46 on the head part 36. Several screws 48 are screwed into the outer edge of the head part 36, the segment pieces - as in 2 , 3a and 3b shown - hold the head portion 36 together.

The present invention discloses a socket pin for use in tool construction, in particular for forming tools with a new type of fastening technology. The features mentioned above can be combined in any combination which can be mixed without departing from the scope of the invention.

Reference List

10

socket pin

12

Rod

13

connection point

14

section

15

start-up

16

first end

17

pot end

18

second end

19

constriction

20

Hole

21

direction of movement

22

actuating pin

23

deepening

24

opening

25

mushroom head

26

locking bolt

28

spring element

30

stop surface

32

connecting line

34

center line

35

offset

36

headboard

38

rotary switch knob

39

finger pit

40

flange

42

recess

43

ring segment

44

biasing element

46

mark

48

screw

50

mounting hole

52

outer contour

54

plate

100

tool component

102

through hole

104

free space

M

Focus

QUOTES INCLUDED IN DESCRIPTION

This list of documents cited by the applicant was generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Patent Literature Cited

• DE 2019204763 A1 [0003]

Claims (10)

Socket pin (10) for fastening to a tool component (100) of a multi-part forming tool, with a rod (12) whose outer circumference is adapted to a through hole (102) in the tool component (100) and is supported within the through hole (102), and a section (14) at a first end (16) of the rod (12) is shaped as a guide pin, which in the use position is received by a further tool component (100), the rod (12) having a second end (18) has a hole (20) open towards and extending along the rod (12), and an actuating pin (22) is at least partially received in the hole (20) and can be reversibly brought into a locking position and into an unlocking position within the hole (20). and at least one opening (24) extends between the outer circumference and the hole (20) which receives a locking bolt (26) so that it can be displaced radially and transversely to the hole (20), the locking bolt (26) being in the locking position of the actuating pin (22) protrudes beyond the outer circumference of the rod (12) and in the unlocking position of the actuating pin (22) it does not, characterized in that the hole (20) extends into the section (14) of the rod (12). and the opening (24) is located within the pilot shaped portion (14). Socket pin (10) after claim 1 , characterized in that the actuating pin (22) in the locking position pushes the locking bolt (26) within the opening (24) to the outside. Socket pin (10) after claim 1 or 2 , characterized in that a spring element (28) is introduced within the opening (24) and the spring element (28) is relaxed in the unlocked position of the actuating pin (22) and presses the locking bolt (26) in the direction of the hole (20). Socket pin (10) according to one of Claims 1 until 3 , characterized in that the actuating pin (22) is rotatably mounted within the hole (20) or is supported within the hole (20) in such a way that it can be brought from the locking position to the unlocking position or vice versa by means of a rotary movement or a pushing or pulling movement will. Socket pin (10) according to one of the preceding claims, characterized in that a stop surface (30) is formed at the second end (18) of the rod (12), which protrudes beyond the outer circumference of the rod (12) and is parallel to a center line ( 34) of the locking bolt (26). Socket pin (10) according to one of the preceding claims, characterized in that a head part (36) is arranged at the second end (18) of the rod (12), which rotatably accommodates a rotary switch knob (38) and acts on the actuating pin (22). . Socket pin (10) after claim 6 , characterized in that the rotary switch knob (38) is non-rotatably connected to the actuating pin (22) or is formed in one piece, the rotary switch knob (38) having at least one flange (40) which is at least partially surrounded by a ring-segment-like recess (42) in the head part (36) is received, and the flange (40) or the recess (42) is designed such that the rotary switch knob (38) latches in two positions, the flange (40) a rotary movement of the actuating pin (22) and the rotary switch knob ( 38) limited. Socket pin (10) after claim 7 , characterized in that two ring segments (43) arranged one above the other and twisted relative to each other are cut out on the head part (36) and the flange (40) on the rotary switch knob (38) is twisted in an approximately Z-shape or stepped shape within the recess (42) and the Actuating pin (22) performs an axial change in position in the longitudinal direction of the rod (12). Socket pin (10) after claim 8 , characterized in that a biasing element (44) is supported on the socket pin (10) that presses at least the rotary switch knob (38) within the head part (36). Socket pin (10) after claim 9 , characterized in that at the second end (18) of the rod (12) supporting side of the head part (36) projects beyond the outer circumference of the rod (12) at least partially.

Images