JPS63123540A - Upper side tool supporter for puncher, etc. - Google Patents

Abstract

The invention relates to an upper tool holder (4) for a punch or the like, with at least two punching tools (5) arranged next to one another, preferably each punching tool (5) consisting of a punching ram (7), a ram holder (8) and a coupling nut (9) connecting the punching ram (7) to the ram holder (8), with a carrier body (10), with a receiving plate (11), with tool guides (12) for each punching tool (5) which are arranged next to one another in the receiving plate (11) and which extend in the punching direction, and with an especially pivotable closing cover (14) fastened to the carrier body (10), especially articulated pivotably about an articulation axle (13) and removable in a plane perpendicular to the punching direction, the upper ends of the punching tools (5) being guided in the tool guides (12) so as to be displaceable in the punching direction and so as to be limited in one direction by bearing flanges (15). In this upper tool carrier (4), the guidance of the punching tools (5) is not influenced by the attachment of the closing cover (14) to the carrier body (10), specifically in that the closing cover (14) comprises the receiving plate (11), in that the tool guides (12) are closed annularly in the plane perpendicular to the punching direction, and in that, when the closing cover (14) is removed, especially swung away, from the carrier body (10), the punching tools (5) can be pushed into the tool guides (12) or pulled out of the tool guides (12) in the punching direction or in the direction perpendicular to the receiving plate (11). <IMAGE>

Description

DETAILED DESCRIPTION OF THE INVENTION Industrial Application The invention provides at least two punching tools arranged side by side, each punching tool preferably having a punch, a punch holder and a punch holder. It consists of a cap nut that connects the punching punch to the punch holder, and includes a support member, a housing plate, a tool guide for each punching tool arranged side by side in the housing plate and extending in the punching direction, and a cap nut that is attached to the support member. , in particular a pivotable closing cap is provided which is articulated in a pivotable manner about a pivot axis and which is removable in a plane perpendicular to the punching direction, with the upper end of the punching tool is slidably guided in the punching direction within the tool guide, limited in one direction by a support flange. Concerning an upper tool support for punching machines etc.

In principle, the following statements apply not only to the upper tool carrier of a machine tool configured as a punching machine, but also to the case where, for example, two or more pawl tools are arranged side by side on the upper tool carrier. . The teachings of the present invention therefore include:
It is not limited to punching machines and punching tools, but is applicable to all machine tools where similar problems arise.

The teachings of the present invention will be described here and below with reference to an advantageous embodiment of an upper tool support for a punching machine to facilitate understanding of the teachings.

2. Prior Art In the upper tool support for a known punching machine etc., which is the premise of the present invention (European Patent Application No. 18014
(Specification No. 6), taking into consideration the narrow space situation when a plurality of punching tools are arranged side by side.

A quick exchange of one or all punching tools is possible as follows. That is, since the receiving plate is part of the support member and the tool guide is open toward the end face of the support member, the upper end of the punching tool can be inserted substantially horizontally into the tool guide. A closure cap closes all tool guides together at the open end. By applying the closing cap and locking the receiving plate and the closing cap.

The open ends of all tool guides in the receiving plate are closed in one motion. All punching tools are thereby secured. In particular, the end of the punching tool therefore has a hammerhead-like enlargement.

In addition, the receiving plate and the closing cap have supporting surfaces corresponding to the hammerhead-shaped enlargement, so that the punching tool cannot be pulled out downwardly from the tool guide.

The closure cap is pivotably articulated to the support member or the receiving plate via a pivot axis and is lockable thereto by means of a locking device arranged on the opposite side. In this case, the locking device consists of a locking pin articulated on the receiving plate so as to be pivotable in a horizontal plane, and a locking receptacle open on one side in the closure cap.

At this time, the lock bin can be swung into the lock accommodating portion for locking, and can be fixedly tightened. In addition, accommodation spaces are provided in the support member above the tool guide and below the force transmission surface for the upper end of the punching tool, and these accommodation spaces slide approximately perpendicularly to the punching direction. This can be bridged by a movable force-transmitting slide. Each punching tool is equipped with a reciprocating lever located on the support member.
- grips the upper end of the associated punching tool from below, so that the upper end of the punching tool is held into the receiving space by the reciprocating lever when the force-transmitting slide is retracted. can be raised. For this reason, a pneumatic drive device, etc., which will not be individually described in detail, is provided.

The above-mentioned upper tool carrier, which forms the starting point for the teaching of the invention, can practically no longer be improved with regard to the possibility of rapid exchange of the punching tool. However, it has been found that the half-shell configuration of the receiving plate and closing cap to form the tool guide is in fact homogeneous. In other words, if the locking device is tightened too strongly, the punching tool may be tightened in the tool guide.

The upper tool support is therefore inoperable at this time.

This can result in damage to the punching tool and possibly other machine parts.

OBJECTS OF THE INVENTION It is an object of the invention to provide a method in which the guide of the punching tool is not influenced by the mounting of the closure cap on the support element.
The object of the invention is to modify and improve the upper tool support for known punching machines and the like.

Structure of the Invention The upper tool support according to the present invention that solves the above problems has the following features. This means that the closing cap includes a receiving plate, that the tool guide is closed in a ring-like manner in a plane perpendicular to the punching direction, and that the closing cap is removed from the supporting member, in particular when it is swiveled out. , the punching tool is in the punching direction or in the direction perpendicular to the receiving plate,
According to the present invention, which can be pushed into the tool guide or taken out from the tool guide, it is possible to provide the tool guide each in the form of a half-shell, with a part in the closing cap and a part in the receiving plate. Not performed. Rather, according to the invention, the tool guide is mounted completely and closed on the receiving plate, the receiving plate being part of the closing cap.

Therefore, it can be completely removed from the support member.

When the closure cap is removed from the support member, especially when swung, the punching tool can actually be quickly inserted into the tool guide in the punching direction or in a direction perpendicular to the receiving plate or withdrawn therefrom. I can do it.

This is similar to what was previously possible by withdrawing or inserting from a half-shell housing.

Nevertheless, the tool guide is completely closed in the form of a ring, so that the influence of the punching tool in the tool guide is excluded. The cross section of the tool guide in the plane of the receiving plate is
The tightening of the locking device therefore does not change with force. Tightening of the punching tool does not occur.

Example Embodiments of the present invention will be described in detail below with reference to the drawings.

FIG. 1 shows, as a particularly advantageous embodiment of the invention, a machine tool in the form of a punching machine, which machine tool has a C-shaped machine body 1, which is only shown schematically, and a lower tool 3. a lower tool support 2 formed or arranged on the machine body 1;
and an upper tool support 4 with an upper tool, here a punching tool 5, arranged or formed in the machine body l. Only shown schematically, on the upper tool support 4 or on the machine body 1 above the upper tool support 4.

There is a drive head 6, for example in the form of a hydraulic cylinder-piston arrangement, from which the punching tool 5 can be lowered into the lower tool 3 during operation.

As shown in connection with FIGS. 1 and 2, the upper tool support 4 shown here has at least two parts.

To be precise, the advantage here is that three punching tools 5 are arranged side by side. In the preferred embodiment shown here, each punching tool 5 includes a punching punch 7.
, a punch holder 8 and a cap nut 9 for connecting the punch 7 to the punch holder 8. The three punching tools 5 are arranged side by side as close as possible as shown in FIG.

As shown in FIG. 1, in the embodiment shown here, the upper tool support 5 first comprises a support member 10 and a receiving plate 11.
has. At that time, as is clear from FIG.
A tool guide 12 for each punching tool 5 is provided which is arranged side by side and extends in the punching direction. As shown in further connection with FIGS. 1, 2 and 3, the upper tool support 4 was attached to a support member 10.

In particular, the embodiment shown here has a closure cap 14 articulated to the support member 10 so as to be pivotable about a pivot axis 13. Finally, as shown in connection with FIGS. 1 and 2, the upper end of the punching tool 5 is restricted in one direction by the support flange 15 in the tool guide 12 in the punching direction, thus here It is slidably guided in the vertical direction. The support flange 15 is best shown in FIG. These support flanges are used to prevent the punching tool 5 from dropping downward from the tool guide 12.

Although not shown in the figure, the upper end of the punching tool 5 has a hammerhead-like enlarged part, which rests on a support flange 15 provided in the tool guide 12. When the punching tool 5 is pulled out downward, the punching tool 5 is prevented from falling.

This is clear from the prior art, which is the premise of the present invention. Further details of the upper tool carrier 4 described here are apparent from European Patent Application No. 180 146, so reference is made to this publication.

As shown in FIG. 4, in the upper tool support 4 described here, a receiving space 17 is provided in the support member 10 above the tool guide 12 and below the force transmission surface 16 for the upper end of the punching tool 5. It is being The receiving space 17 can be bridged by a force-transmitting slide 18, etc., which is movable approximately perpendicularly to the punching direction, and can be bridged by an adjusting drive 19, here constructed as a pneumatic cylinder-piston unit. .

The force transmission surface 16 is then arranged below the drive head 6 . According to this technique, during the downward movement of the force-transmitting surface 16, only the punching tool 5 whose force-transmitting slide body 18 bridges the associated receiving space 17 is actively moved downwards; Two further punching tools 5 can each be pulled into the respective receiving space 17.

Instead of returning the punching tool 5 that is not in operation into the housing space 17 by the upper side of the work piece, it is actively moved into the housing space 17.
In order to return to the inside, each punching tool 5 is
It is also known to include a reciprocating lever 20 arranged on the support member 10. The reciprocating lever 20 is only schematically shown for the respective receiving space 17 in FIG. Since the reciprocating lever 20 can grip the side of the upper end of the attached punching tool 5 from below, the reciprocating lever 20 allows the upper end of the pushing tool 5 to be gripped when the force transmitting slider 18 is retracted. It can be lifted into the accommodation space 17.

The teachings of the present invention are best understood from FIG.

And it has the following characteristics. i.e. closure cap 1
4 includes a receiving plate 11, the tool guide 12 is closed in a ring shape in a plane perpendicular to the punching direction, and the punching tool 5, when removing the closure cap 14 from the support member 10, In particular, when swung, it can be pushed into or pulled out of the tool guide 12 in the punching direction or in a direction perpendicular to the receiving plate 11. The advantages of this construction with a ring-shaped closed tool guide 12 in the closure cap 14 were explained in detail at the beginning and therefore cannot be explained any further here.

Furthermore, as shown in FIG.
are the respective tool guides 1 facing towards the support member 10
2 has a mating passage 21 for a reciprocating lever 20 opening into the tool guide 12 below the support flange 15. When the closure cap 14 is mounted on the support element 10, the reciprocating lever 20 can thus fit through the mating channel z1 to below the edge of the punching tool 5, in particular in the hammer-like enlargement at the upper end. can. How to insert the reciprocating lever 20.

The pivotable articulation of the closure cap 14 occurs spontaneously when the closure cap 14 is pivoted towards the support member 10 . In this case, the locking channel 21 in the closure cap 14 is oriented towards the pivot axis 13 for the pivotable articulation in the support member 10 of the tool guide 1 .
Preferably, on the side of 2, it flares out towards the side facing towards the support member 10. This corresponds to an arcuate movement of the mating passage 210 about the pivot axis 13.

As shown in FIGS. 2, 3 and 4, in the advantageous embodiment shown here, the center of the pivot axis 13 for articulating the closure cap 14 on the support member 10 is
It is arranged laterally at a considerable distance from the immediately adjacent edge of the immediately adjacent tool guide 12, preferably at a distance of approximately 200 m, in particular approximately 150 m. This lateral extension of the support element 1O and the closure cap 14 has the advantage that the upper end of the punching tool 5 can be easily pulled upwards from the tool guide 12 in the receiving plate 11. Due to the minimum lateral spacing from the immediately adjacent tool guide 12 to the pivot axis 13, the insertion movement for the punching tool 5 is completely free, even in the presence of an overhanging part of the upper tool support 4. Tool guide 12
can be separated from the support member 10 sufficiently widely.

In the prior art, which is the premise of the present invention, the closure cap 1
4, the support member 10 is locked by a locking device 22, in particular by a locking device z2 arranged on the opposite side of the pivot shaft 13.
can be locked to According to one advantageous teaching of the invention, as shown in conjunction with FIGS. 2 and 4, a second locking device 23 is provided near the pivot axis 13;
And in accordance with the advantageous teaching of the invention, the rear end is arranged under the part 24 of the closure cap 14 which extends towards the pivot axis 13. The locking device [23] can then be configured similarly to the locking device 22 as described at the outset, ie the locking pin 25. and a locking pin receptacle 26 provided on the closing cap 14 and preferably open laterally on one side, in which case the locking pin 25 can be inserted into the locking pin receptacle 26 and tightened for locking. The attachment can be tightened using a nut 27 or the like. In this case, the tightening nut 27 or the like can be configured as a lever, especially the bent tightening, as is clearly shown in FIG. If the second locking device 23 is placed under the part z4 of the closing cap 14, tightening can be accomplished by swinging the locking pin 25 together with the nut 27 to the left in FIG. The locking device 23 can be swung freely without colliding with the locking device 23.

[Brief explanation of the drawing]

The first @ is a schematic side view of a machine tool, here a punching machine,
FIG. 2 is a front view of the machine tool shown in FIG. 1. Fig. 3 is a plan view of the machine tool shown in Fig. 1, and Fig. 4 is a plan view of the machine tool shown in Fig. 1. 2 is a plan view of the machine tool of FIG. 1 with the drive head removed; FIG. DESCRIPTION OF SYMBOLS 1...Machine body, 2...Lower tool support, 3...Lower tool, 4...Upper tool support, 5... ... Upper tool, 6 ... Drive head, 7 ... Punch punch. 8... Punch holder, 9... Cap nut, 10... Support member, 11...
Accommodation plate, 12... Tool guide, 13...
・Pivot axis, 14... Closing cap.

Claims (5)

[Claims] (1) At least two punching tools arranged side by side are provided, each punching tool preferably consisting of a punch, a punch holder and a cap nut connecting the punch to the punch holder; , a supporting member, a receiving plate, a tool guide for each punching tool arranged side by side in the receiving plate and extending in the punching direction, and mounted on the supporting member and in particular pivotably articulated about a pivot axis. A closure cap is provided which can be removed in a plane perpendicular to the punching direction, and in particular can be pivoted, the upper end of the punching tool being pushed in one direction by means of a support flange in the tool guide. In an upper tool support for a punching machine, etc., which is limited and slidably guided in the punching direction, the closing cap (14) includes a receiving plate (11) and the tool guide (12) is slidably guided in the punching direction. If the closing cap (14) is closed in a ring-like manner in a plane perpendicular to the drawing direction and is removed from the support member (10), especially if it is swung, the punching tool (5) , punching direction or accommodation plate (11
Upper tool support for a punching machine or the like, characterized in that it can be pushed into or withdrawn from the tool guide (12) in a direction perpendicular to ). (2) A housing space is provided above the tool guide and below the force transmission surface in the support member for the upper end of the punching tool, and the housing space is movable approximately perpendicularly to the punching direction. The bridge can be bridged by a force-transmitting slide or the like, in which case each punching tool is provided with a reciprocating lever arranged on the supporting member, and the reciprocating lever is attached to the side surface of the upper end of the associated punching tool. In the tool carrier, in which the upper end of the punching tool can be lifted into the receiving space by means of a reciprocating lever when the force-transmitting slide is grasped from below and the force-transmitting slide is retracted, the closing cap (14) In each tool guide (12) on the side facing towards (10) there is a mating passage (21) for a reciprocating lever (20) opening into the tool guide (12) below the support flange (15).
The tool support according to claim 1, having the following. (3) Interlocking passageway (21) within the closure cap (14)
is widened towards the side facing the support member (10) on the side of the tool guide (12) facing towards the pivot axis (13) for pivotally articulating the support member (10). A tool support according to claim 2, wherein the tool support is (4) the center of the pivot axis (13) for articulating the closure cap (14) to the support member (10) is at a significant distance laterally from the adjacent edge of the adjacent tool guide (12); 4. The tool carrier according to claim 1, wherein the tool carrier is arranged at a spacing of preferably approximately 100 to 200 mm, in particular approximately 150 mm. (5) a second locking device near the pivot axis (13) in the tool support in which the closure cap is lockable in the support member by a locking device arranged preferably on the side opposite the pivot axis; (23)
is provided and is preferably arranged below the part (24) of the closure cap (14) located there and extending towards the pivot axis (13).
Tool support according to one of clauses 4.