KR101230185B1 - Wedge drive with slide receptacle - Google Patents

Abstract

Wedge drive (1) comprising a slider member receiving means (2), a movable slider member (3) and a drive member (5), wherein sliding surfaces (301, 302) are provided with the slider member (3) and the drive member ( 5), wherein a dove or prism guide 6 is provided between the slider member 3 and the slider member receiving means 2.

Description

Wedge drive with slider receptacle {Wedge drive with slide receptacle}

The present invention relates to a wedge drive or cotter key comprising a slider member receiving means, a movable slider member and a drive member, wherein sliding surfaces are provided between the slider member and the drive member. A dovetail or prism guide provided on the slider member and having a sliding surface and a sliding surface provided on the slider member receiving means are arranged between the slider member and the slider member receiving means. The invention also relates to a slider member for a wedge drive having a slider member receiving means and a drive member, the slider member being provided between the slider member receiving means and the drive member and having a sliding surface on the slider member. Thereby providing a domed or prismatic side.

Wedge drives, referred to as sliders, are primarily used to apply pressure to stamping or shaping equipment, thereby cutting, drilling, or shaping bodywork areas, particularly in inclined or undercut configurations. can do. The wedge drive in this arrangement comprises at least one slider element receiving means, a movable slider element or a driver element. Rigid slider member receiving means are generally connected away from the press or pressing machine, in which the wedge drive is intended for a stamping or shaping operation. When the slider member receiving means is fixed on top of the pressing machine, the wedge drive is referred to as the upper slider, which is connected to a moving pressing ram. When the slider member receiving means is connected to a lower pressing machine fixed on a rigid press table, it is referred to as a lower slider. The slider member receiving means of the wedge drive has linear guide means by which the movable slider member is reciprocated irrespective of the portion to which it is connected, which is firmly connected to the slider member receiving means. The drive member is generally in the form of a rigid member firmly connected to a part of the pressing machine, in which the slide member receiving means is not tightened. The drive member generally has an inclined wedge portion, thereby functioning as a drive member in relation to the movable slider member.

In situations involving the substantial vertical forward movement of the pressing machine, referred to as a working stroke, the slider member in the rear position withstands and is supported by the rigidly standing drive member, whereby it faces the wedge shape (wedge shape). Is advanced by the inclined position. In this case, the inclination of the linear guide means of the slider member receiving means is adapted to the inclined position of the drive member, so that no acceleration of the movable slider member is involved in relation to the actual pressing speed. Thus, the movable slider member is driven only by the pressing machine and controlled forward or rearward so as to perform stamping or shaping operations. In the rear stroke movement, in which the pressing machine moves over the bottom dead center and is spaced apart again, it is common for the movable slider member to be pushed back to its original position by means of a suitably designed elastic member, thereby restarting the procedure. The return force required for the return movement of the slider member is generally 2 to 10% of the weight of the slider member and the actual operating force. The decisive aspect with respect to the magnitude of the pressing force in this respect is the dimensions of the surface, referred to as the sliding surface for transmitting pressure, the respective inclination of the linear guide means in the slider member drive means, the inclined position of the drive member, the slider The tilt of the member itself and the collaboration of the structure. The pressure delivered is typically from several hundred kN to tens of thousands kN.

The linear guide means in the slider member receiving means are intended to guide the movable slider member with the smallest possible play, during which it can withstand high pressing forces and have a long life. 0.02 mm is required as the maximum tolerance in terms of accurate movement of the movable slider member to achieve cutting and drilling of burr-free workpieces. If such tolerances are not satisfied, somehow the cut, perforated or shaped workpiece can no longer be placed on any other part with a correct use relationship, resulting in an error on the foundation bodywork structure and / or Rubbing against other drive means results in faster wear, and the configured bodywork can be reduced in force and increased in noise level by loose metal sheet parts. To avoid these drawbacks, wedge drives must be provided with extremely high movement accuracy, especially in the automotive sector, and must be able to withstand the required pressing pressures permanently or be available in connection with stamping or shaping equipment.

In order to obtain the required movement accuracy here, various concepts have been developed, which will be described later. As an exemplary method, slider guide means having a side sliding plate, a drive member arranged at right angles to hold the slider member and a cover plate that is screwed together are known. Slider guide means of this kind can withstand very high pressing forces and lateral thrust, but are very complex and expensive to manufacture due to the level of hand-operated cooperative working parts, which requires high costs to meet the guide tolerances between the members. do. Another problem found is inadequate protection with respect to spaced slider guide means, in which case the entire rear attachment force in addition to the slider weight can act on the fixing screw of the cover plate and be quickly overloaded between them. In addition, such slider guide means are relatively large in structure size, and are therefore unsuitable for constructing a small slider.

Slider guide means having a transverse angle bar and a driver plate arranged at right angles are also known. Unlike the slider guide means described above, the combination of the cover plate and the transverse sliding plate leads to a reduction in the required structural space, and as a result it is possible in particular to construct a smaller slider size. However, the force acting on the fixing screw of the angle bar is large, and as a result, the risk of an accident is relatively high. In addition, it is complex and expensive in terms of manufacturing a cooperative actuating member for aligning guide tolerances, which incurs additional costs.

Other types of slider guides are used, including cover plates and lateral sliding inclined at a 45 degree angle. They are thus arranged in a rough loop structure. This results in a reduction in the structural width as the cover bar, with the sliding plate arranged on top of it rather than arranged beyond the other plate. However, the required structural space is still large, and therefore it is hardly possible to provide a small slider. In addition, the resulting traction forces adverse effects on the fixing screw of the cover plate, which leads to a high level of processing inaccuracy.

Another known structure comprises slider guide means with a driver plate and one or two column guide means with bushes to hold the slider member laterally and prevent it from falling off. The use of a guide column with a driver plate means that only a relatively small structural space is still required and can be achieved with a relatively low manufacturing cost compared to using a conventional solution in the art. However, the column guide means cannot compensate for high lateral pressures due to the associated structural type. In addition, it is not possible to accommodate the high weight of the slider member, and thus such slider member can provide better pressing force and further cause problems in the pressing procedure.

Another kind of slider member guide means is known by way of example in EP 1 035 965 B1. This arrangement is provided for clamping embrasing on the side of the slider member guide means, the drive member providing a prism guide and the sliding plate is inserted between the driver member and the slider member. The associated loop shape allows for very high forces with small structural space, and very precise guide tolerances are also possible, meaning that the wedge drive or slider member guide means are stable and have a long service life. However, the manufacture of the clamping guide means is expensive and the cutting machine operation required for the elaborate fitting shape is consequently complicated and economically low.

Other wedge drives are also known by way of example from EP 1 259 371 B1, DE 198 60 178 C1 and EP 1 197 319 B1.
FR-A-2 421 030 provides a wedge drive of the kind described above for use as a workpiece clamping device. The apparatus comprises a base plate (drive member), a ram (slider member receiving means) and a wedge (slider member) located between the base plate and the ram, the wedge having a sloped surface facing the ram, The facing surface of the ram is inclined at the same angle, and the wedge is driven by screws along the base plate to distinguish between the base plate and the ram. The wedge has dovetail-like protrusions that operate in corresponding grooves of the base plate and have sliding surfaces.
In addition, a wedge drive of the kind according to the above description is disclosed as a radial press in DE 198 61 171 B4, which radial press comprises a top press yoke (slider member) and a corresponding inclined surface of the top press yoke. And a transverse pusher (slider member receiving means) having an inclined surface facing away from it. A dove-shaped or T-shaped guide is provided between the upper press yoke and the transverse pusher that includes a sliding surface.

The design concept of the slider member guide means described above for the wedge drive generally has one or more sliding plates for the transmission of high pressing forces and a holding member suitably designed to hold the slider member in the guide provided therefor. Has The sliding plate functions to permanently transfer the operating pressure applied by the pressing machine from the slide member receiving means and the drive member to the movable slider member, ensuring an actual forward drive effect. The holding members serve to linearly hold the slider members on the sliding plate of the slider member receiving means, in which case they ensure the necessary accuracy of movement permanently and enable lateral thrust compensation caused by shaping operations or cutting or stamping procedures. .

It is an object of the present invention to develop a wedge drive as described in the features of claim 1, wherein a guide for the movable slider member is provided, which enables more accurate movement accuracy, stamping or shaping than conventional solutions in the art. It provides the optimum switching of the pressing force applied in the movement, still compensating for the lateral thrust better than the conventional solutions in the art, and providing a better life of the wedge drive than the conventional solutions in the art. In addition, the present invention makes it possible to provide the required complexity and cost of the components working in coordination with the wedge drive at a lower level, thereby enabling more economical manufacturing.

The above object is achieved by the wedge drive described in the characterizing part of claim 1, wherein the sliding surfaces provided on the slider member are arranged at an angle greater than 0 degrees and less than 180 degrees with respect to each other, Force is transmitted from the slider member receiving means to the slider member during the working stroke, during which the slider member is moved outwardly between the drive member and the slider member receiving means.
The above object is solved by the slider member described in the characterizing part of claim 1, wherein the sliding surfaces provided on the slider member are arranged inclined with respect to one another, whereby Force is transmitted to the slider member, during which the slider member is moved outwardly between the drive member and the slider member receiving means.
On the other hand, in the present invention, the "outwardly" movement of the slider member 3 means the movement to the right based on FIGS. 7 and 8. This is because the workpiece (not shown) is located on the right side of the receiving means 4 that is outside of the wedge drive 1 with reference to FIGS. 7 and 8. In short, the slider member 3 moves to the right during the working stroke, thereby bringing the slider member receiving means 2 and the driving member 5 closer together.
In contrast, during the rear stroke the slider member 3 moves to the left, returning to the original position shown in FIGS. 7 and 8. In other words, the slider member 3 moves to the left during the rear stroke, so that the slider member receiving means 2 and the driving member 5 are separated.

Thus, the movable slider member provides a wedge drive or kotterkey having a dovetail or prismatic side, the slider member receiving means being of a type corresponding to the opposing portion, whereby the slider member having a dovetail or prismatic side Can be fastened to the slider member receiving means, in which it can be guided and maintained as a self-centering method. The slider member receiving means and / or the surfaces on the slider member, respectively provided in the dove and prism form, abut against each other, in which case the forces directed in different directions are caused by the surfaces inclined with respect to each other in the dove or prism form. It can be accepted without any problem. This guide means between the slider member receiving means and the slider member provides a self centering linear guide for the slider member. The dove shape means that after insertion into the correspondingly shaped receiving structure of the slider member receiving means, the movable slider member is safely protected against lateral movement or dropping without further measurement.
The dovetail guide arrangement permits the guide of the slider member along the slider member receiving means to a high degree of accuracy and is not sensitive to transverse thrust and at low manufacturing costs and without providing other components in the form of linear guide means. Compact wedge drives are provided that have a high level of drive accuracy and are insensitive to manufacturing tolerances. As the clamp guide or additional member is no longer needed, not only the manufacturing cost is reduced compared to the conventional solutions in the art, but also the possibility of accidents being reduced. As only the slider member needs to be pushed into the slider member receiving means, the assembly of the wedge drive is simplified compared to conventional solutions in the art. No expensive work of grinding the guide member as a prism guide or dovetail guide of the slider member receiving means, and the slider member and the drive member are not sensitive to manufacturing tolerances. In addition, the self-centering effect produced by the prism guide results in a very high level of accuracy in operation with respect to accommodating lateral thrust. Note that the compact structure of the wedge drive not only fits into the small structural space available in the pressing machine, but also for use in connection with wide dimensions.

Preferably the sliding surface is provided on the slider member and / or the slider member receiving means. Particularly preferably the dovetail or prism guide means comprise at least two sliding plates arranged obliquely with respect to one another. Preferably the sliding plates of the dove or prism guide means may be L-shaped in cross section. It has also been found to be particularly preferred when the sliding plate is provided on all surfaces of the slider member and the slider member receiving means that are slid with respect to each other, so that in each case the sliding plate arranged at an inclination with respect to each other is at least two slider members. And on the slider member receiving means. Sliding plates having a loop-shaped or L-shaped cross section may preferably have an undercut configuration in the above-described dovetail guide configuration by an oblique position in which the inner narrow side thereof is inclined outward of the sliding plate.

The sliding plates are provided at the two sides of the slider member and the slider member receiving means at the same time, respectively, so that they are symmetrical and arranged in an L-shaped or looped shape, whereby the shape of the dovetail guide means can be achieved, in particular further values. It is desirable to be able to do this without expensive linear retaining members. Moreover, fewer additional components compared to conventional solutions in the art, while allowing more reliable and more binding operation without adversely affecting the operating mode of the wedge drive and allowing a very high level of driving accuracy without the provision of retaining members. Only is provided and manufacturing costs can be greatly reduced compared to conventional solutions in the art.

Preferably the dove or prism guide means comprises a positively locking connection between the slider member and the slider member receiving means. Providing such a mating lock connection provides a compact unit while delivering high pressing force without any problem. Moreover, this prevents the slider member and the slider member receiving means from undesirably sliding out relative to each other, so that the mechanical contact surface between the slider member and the two connected portions of the slider member receiving means and the region of the dove or prism guide means. The mating lock connection in Es transfers the forces transmitted by the surfaces that are in contact with each other and inclined with respect to each other, helping to hold the components together by the inclined position in this respect. Preferably, the mating lock connection can be a connection between the projection 35 of the slider member 3 and the recess 25 of the slider member receiving means 2.

It has been proved to be more preferred when the slider member receiving means is of a projecting configuration within the receiving means and / or sliding surface area of the sliding plate. This allows a wider surface for sliding movement of the slider member on the side of the slider member receiving means, thereby providing a very good transfer of pressing force by the wider receiving surface.

Preferably, the sliding plate can be releasably fixed to the slider member receiving means and / or the slider member, in particular by means of fastening screws. The release of the sliding plate from each of the slider member receiving means and the slider member means that it can be replaced when wear occurs. Note that in principle it is also possible to mount the slider member and the corresponding sliding means of the slider member receiving means in such a way that they can be slid relative to one another without disturbing the sliding plate. However, in the event of abrasion, it is necessary to replace the slider member receiving means and the slider member itself, so that the arrangement has a sliding plate that is releasable and is easy to operate in terms of handling if the next other problem can be quickly replaced. The cost has been proven to decrease.

The side of the slider member, which is dovetail or prismatic, preferably has a support surface as sliding surface, in particular for attachment of the sliding plate. In this respect it is particularly preferable to provide two sliding plates arranged inclined with respect to each other, in which difficult adjustment of the four individual sliding plates arranged oblique to each other can be avoided. It is only necessary to carry out the adjustment on either one of the support surfaces for each sliding plate, thus enabling fast sliding plate replacement.

Preferably, a wedge guide is provided between the slider member and the drive member. This arrangement allows a very high force to be accommodated with a precise and stable guide for the slider member at the same time under a possible movement of the drive member, in a relatively small structural space. As can be seen in FIGS. 4, 6, and 7, the wedge guide in the present invention is a concept including a wedge portion 50 and a wedge shaped receiving surface 300.

Preferably, the wedge guide comprises two sliding plates arranged at an angle to each other. Such sliding plates preferably comprise a material which aids in sliding movement, such as copper, in particular as solid lubricant. In particular, the provision of a sliding plate which is replaceably tightened to the drive member and / or the slider member allows the plate to be replaced when worn in a simple manner and to provide optimum sliding movement of the surfaces of the interconnected drive member and the slider member during operation.

It has been demonstrated that dovetail or prism guide means and wedge guides are preferably provided inclined relative to one another on the slider member. Multiple angled arrangements with respect to each other make it possible in particular to reduce the structural size of the wedge drive, thus allowing for a compact size that can be used even in limited space conditions within the pressing machine.

It has been demonstrated that dovetail or prism guide means and wedge guides are preferably provided on two mutually adjacent sides of the slider member. This allows to improve the accuracy of movement while at the same time reducing the structural size compared to the conventional solutions in the art, which conventional solutions generally accommodate the slider member on two mutually opposite sides of the slider member. It relates to operative fastening on the means and generally to operative fastening on the drive member.

The slider member has a receiving means for receiving a processing device and may have a third side adjacent to the other two sides (first side, second side). That is, the slider member 3 is provided with three sides, the first side being a dove or prismatic portion 30, the second side being at least one adjacent to the first side and connected to the drive member 5. It may have a wedge shaped receiving surface 300, and the third side may be adjacent to the first side and the second side and provided on at least one wedge surface for the receiving means 4 of the processing device. In this case, the third side preferably has at least two undercut configurations and / or grooves for the insertion of the protruding member of the receiving means to receive the processing device. Only by the receiving means being removed from the third side of the slider member and replaced by other receiving means, for example to accommodate different machines, the provision of such separate receiving means for receiving a processing machine, for example a punching punch, Causes simple replacement of the instrument without any problem. This can completely eliminate the inconvenient procedure of screwing in the processing device itself, unscrewing and even drilling another hole on the slider member. The undercut configuration and / or groove at the third side of the slider member is optimal because the receiving means can be inserted, for example by push action, no additional fastening work is required and in particular the provision of a mating lock connection by means of the undercut configuration. It means that the transmission of power is guaranteed.

A third side of the slider member may be provided on at least one wedge-shaped surface, in which case the receiving means preferably has a corresponding wedge-shaped surface to provide a mating lock connection between the slider means and the receiving means for the processing machine. do. Transverse thrust can thus be accommodated and force transmission can be optimized.

The operating mode of the wedge drive includes an operating stroke and a return operation. During the operating stroke the slider member is moved outwards between the drive member arranged in the form of a wedge and the sliding surface of the slider member receiving means, in which case the slider member receiving means and the driving means are driven by the pressing stroke to move vertically towards each other. Can be. The pressing force applied by the pressing machine in this respect corresponds to the reaction force which the wedge drive applies for this operation, for example by cutting, drilling or post-shaping the body part, which is a separate sliding to each other. According to each angular position of the surface is distributed to the sliding surface. By providing sliding surfaces that are arranged at an angle to each other and arranged looped or prismatic with respect to each other, the movable slider member is automatically centered between or on the sliding surface between the slider member receiving means and the drive member. )do. This provides a very high level of drive accuracy and lateral guidance of the slider member, compensating for manufacturing tolerances or other inaccuracies caused during manufacturing, and thus no further adverse effects.

In the return drive of the slider member, referred to as the rear stroke, the pressing machine moves away from each other and thus the slider member receiving means moves away from the drive member, the slider member in the region between the slider member receiving means and the drive member. Contraction. The force acting on the slider member in the rear stroke or return drive is limited only by the weight of the slider member and the retraction force acting on the slider member and the drive member as the pressing machine moves away. The sliding surfaces of the slider member and the slider guide member operate in relation to one another in the present situation, which reduces their dimensions for the sliding surface operating relative to each other in the actuating stroke, thereby tactical for sliding surfaces on the dovetail guide means. One L-type was found to be very suitable in this respect.

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In the case of a suspended upper slider or wedge drive, the weight of the slider member is applied to the surface of the slider member receiving means, which causes a mating locking relationship to the slider member sliding surface of the dovetail guide arrangement, Force is applied downwards on the surfaces. However, in terms of the slider member receiving means, this lateral thrust is compensated for by the mating locking shoulder support for the slider member, thus making the slider member and the sliding plate on the slider member and the slider member for the slider member receiving means permanent. Stable fixing is possible. Thus, the fixing screw of the sliding plate is not subjected to any force, in particular a tensile force, which damages it.
The prism guide means or dovetail guide means provided between the slider member and the slider member receiving means can thus be used in small, medium and large format wedge drives, and thus can be used in a wide range. Embodiments described by way of example will be described more fully and in detail below with reference to the drawings.

It allows for more accurate movement accuracy than conventional solutions in the art, provides an optimum shift of the pressing force applied in stamping or shaping movements, and still better compensates for lateral thrust than conventional solutions in the art It provides a better service life of the wedge drive than conventional solutions in the art. In addition, the present invention makes it possible to provide the required complexity and cost of the components working in coordination with the wedge drive at a lower level, thereby enabling more economical manufacturing.

1 shows a vertical sectional view through a first embodiment of a wedge drive according to the invention with a columnar guide means.
FIG. 2 shows a perspective view of the slider member and the slider member receiving means of the wedge drive of FIG. 1.
FIG. 3 shows an exploded perspective view of the slider member and the slider member receiving means of FIG. 2.
4 shows a perspective view of a second embodiment of a wedge drive according to the invention with a row-shaped guide means between the slider member and the slider member receiving means.
FIG. 5 shows a perspective view in which the drive member is omitted in the wedge drive of FIG. 4.
FIG. 6 shows a side perspective view of the wedge drive of FIG. 4.
FIG. 7 shows a side view of the wedge drive of FIG. 4.
FIG. 8 shows a side cross-sectional view of the wedge drive of FIG. 4.
9 shows a perspective view from above of the wedge drive shown in FIG. 4 with fitted receiving means for a processing device.
FIG. 10 shows a perspective view of a wedge drive with receiving means for the processing device shown in FIG. 9 with the drive member omitted. FIG.
11 shows a perspective view of the wedge drive of FIG. 10 with the drive member omitted and the receiving means for the processing device omitted.

1 shows a cross-sectional view of a Kotterkey or wedge drive 1 comprising a receiving means 4 for receiving a processing device, a slider member receiving means 2, and a slider member 3. The drive member connected to the slider member 3 is not shown in FIG. 1, but is shown in the perspective view of FIG. 4.

The slider member and the slider member receiving means are interconnected by dovetail or prism guide means 6. In this case, the slider member 3 has a dovetail or prismatic portion 30. It comprises two sliding surfaces 31, 32, 33, 34, which are each inclined mutually on both sides. In this arrangement the two sliding surfaces 31, 33 are smaller than the other two sliding surfaces 32, 34. For this reason the pressing force applied by the pressing machine on which the wedge drive is arranged in the working stroke is transmitted from the slider receiving means to the slider member by the sliding surfaces 32, 34. In the return drive or rear stroke movement of the pressing machine, the slider member is retracted by the two sliding surfaces 31 and 33, in which case a very high force is applied to the slider member, so that a smaller dimension is suitable for the sliding surface. .

The slider member receiving means 2 comprises a portion 20 correspondingly opposite and having the same configuration and comprising corresponding sliding surfaces 21 to 24 which abut against each other in a mating locking relationship with respect to the sliding surfaces 31 to 34. Have In addition, the dove or prismatic portion 30 is fastened in the corresponding recess 25 in its mating lock relationship (mate lock connection) with the slider member receiving means 2 as its projection 35. The protrusion 35 may be divided into a lengthwise range of each of the slider member accommodating means and the slider member.

In principle it is not possible to provide such a projection, but in this case the retention of the slider member and the slider member receiving means mutually is such a projection 35 which is fastened in a mating locking relationship in the corresponding recess 25 of the slider member receiving means. Is greatly promoted by

As further shown in FIG. 1, a sliding plate is provided on the slider member receiving means and the slider member to form corresponding sliding surfaces 21 to 24, 31 to 34. The first sliding plates 26, 27 on the slider member receiving means 2 have an L-shaped cross section in cross section, with each flat second sliding plate 36, 37, 38, 39 corresponding surface of the slider member. Attached to the phase, which is better shown in FIG. The L-shaped first sliding plates 26 and 27 are fixed to the slider member receiving means by fixing screws 28 and 29. The second sliding plates 36 to 39 are also fixed to the slider member by corresponding fixing screws, which are not shown in FIG.

The provision for releasingly fixing the sliding plate to each of the slider member receiving means and the slider member allows the sliding plate to be replaceable without any problem in the event of wear. The fastening screws are arranged so as to be sunk relationship to the sliding plates so that the sliding movement of the sliding surfaces relative to each is not hindered by the provision of the fastening screws.

As particularly shown in the cross-sectional view of FIG. 1, the slider member receiving means protrudes out of the region of the dovetail guide means to provide a sliding surface 22, 24 large enough for sliding movement and support of the slider member 3. .

As best seen in FIG. 1, a projection 40 is provided in the receiving means 4 for receiving the processing device, and the slide member 3 is provided with a corresponding T-shaped groove 41. The protrusion 40 is preferably T-shaped. By this arrangement, the receiving means located away from the processing device can be easily pushed into the T-groove 41, and simple fixing and binding on the slider member is possible. It is possible to provide a corresponding wedge shape with corresponding grooves and projections in place of the T-shaped grooves and the T-shaped projections, thereby providing further centering operation and receiving lateral thrust in the area. However, there is no provision of movement of the slider member in relation to the receiving means, and in most cases it is sufficient to provide a T groove and a T projection.

Fig. 2 shows the slider member receiving means and the slider member in detail in a perspective view, and is a view from the bottom. The two parts are shown separately so that it is possible to show the first sliding plates 26, 27 of the slider member receiving means 2 and the dovetail portion 20 of the slider receiving means. In addition, the dove or prismatic portion 30 is clearly shown, which is also in a dovetail configuration, and also secured by sliding plates and screws which are bound thereto. As better shown as an exploded perspective view in FIG. 3, each sliding plate is fixed to the slider member receiving means and the slider member by three fixing screws, respectively. The sliding plate has a corresponding bore for receiving the set screw.

2 and 3 also show a wedge shaped receiving surface 300 for connection with the drive member 5 shown in FIG. 4. The wedge-shaped receiving surface 300 is divided into two and has two sliding surfaces 301 and 302 to which respective sliding plates are attached, although sliding plates are not shown in FIGS. 2 and 3. The wedge-shaped receiving surface 300 is inclined with respect to the side and dove-shaped or prismatic portion 30 with a T-shaped groove 41 for receiving the receiving means for the processing device, and thus away from the slider member. It enables a very compact structural shape and substantially eliminates side spaces that are not used. This is particularly well illustrated from the perspective view of the assembled wedge drive 1 shown in FIG. 4, where the slider member receiving means, the slider member, the drive member and the receiving means for the processing machine are assembled. In this aspect, the drive member and the slider member are interconnected by return clamps 7 which are operatively operated. They function for better attendance of the slider member in the rear stroke movement of the pressing machine. The mating actuated return clamps 7 are fastened in the opening, recess or groove provided thereon on the slider member and the drive member.

As shown in FIG. 5, the mating actuated return clamps 7 have protrusions 70 which can be fastened in corresponding grooves in the drive member. As shown in FIG. 5, the sliding plates 303, 304 are fixed on the sliding surfaces 301, 302 by fixing screws 306.

The perspective view of the wedge drive 1 of FIG. 6 rotated 90 degrees with respect to the view of FIG. 4 shows the receiving means 4 for receiving a processing device. It can be seen that the receiving means 4 are provided with corresponding wedge-shaped surfaces comprising two sliding surfaces 43, 44 slidable on the corresponding wedge portions 50 of the drive member 5.

From the side view of the wedge drive 1 shown in FIG. 7, the third side and dove or prism-shaped portion of the T-groove 41 for receiving the receiving means 4 for the processing device of the slider member 3. 30, it is better shown that the wedge shaped receiving surfaces 300 are each arranged at an angle with respect to each other. Each side of the slider member is also arranged inclined with respect to the vertical and horizontal, respectively indicated by dashed lines 8, 9 of FIG. 7. Here again we see the very compact structural shape of the wedge drive.

The corresponding side view of the cross section of the wedge drive 1 shown in FIG. 8 further shows a spring member 10 in the form of a gas pressure spring. This serves to retract the slider member back to its starting position in terms of the rear stroke movement of the pressing machine. This aids in the contractive movement of the slider member with the backward stroke movement, whereby the actuation stroke can again be performed faster. By virtue of the respective configuration of the wedge drive, however, it is possible to omit this spring member, for example in the form of mating actuation return devices with a rolling frictional element. This is especially the case when matched actuation return devices of a special design in the form of these are provided.

On three sides of the dovetail component for fastening to the slider member receiving means, the T-shaped groove for receiving the receiving means 4 for the processing apparatus, and the wedge-shaped receiving surface for cooperative operation with the drive member 5. It is again clearly shown as a perspective view of the wedge drive 1 of FIG. 9 that the slider member is of a very compact configuration by means of a suitable arrangement.

In a perspective view of the wedge drive 1 seen from below with the drive member 5 shown in FIG. 10 omitted, the wedge-shaped surface 42 of the receiving means 4 for the processing device, the length of the sliding plates 303, 304 being It is shown that it is of a length that may be fastened under the sliding surfaces 43, 44, i.e., no further sliding plates other than the sliding plates 303, 304 are provided, whereby the arrangement is driven by the drive member 5. To provide a single surface in cooperative operation with the corresponding wedge 50.

Sliding plates 303 and 304 are omitted from the perspective view of the wedge drive 1, again without the receiving means for the processing device. In this respect, fitting securely to the receiving means for the processing device is achieved by the provision of the bore 305 in the sliding plates 303, 304, although the corresponding fixing screw is not shown in FIG. 1. This allows the fixing of the receiving means 4 to the slider member away from the processing device to be further enhanced and a more stable unit can be achieved.

The slider plate described above on the slider member, the drive member and the slider member receiving means preferably comprises copper as solid lubrication, in particular capable of allowing a good sliding drive of the corresponding pair of sliding components relative to one another. . In principle it is possible to use different materials away from the sliding plate, but a low level of friction on the surfaces sliding against each other is such that particularly optimal movement of the slider member within the wedge drive is achieved by the rear stroke of the pressing machine in which the wedge drive is located and This means that it is possible at the operating stroke.

Unlike the embodiment shown from the figures and described above as a wedge drive having a dovetail or prism guide means, a dovetail sliding surface is provided between the slider member receiving means and the slider member or the prism guide is provided with the slider member and the drive member and the slider. It is possible to form a number of other embodiments provided between the member receiving means and the slider member. This greatly enhances the accuracy of the respective movement of the slider member between the slider member receiving means and the drive member as compared to the conventional solutions in the art, and the lateral thrust is absorbed and on the slider member receiving means, the slider member and the guide member. Manufacturing tolerances are compensated. Only one dovetail or prism guide means between the slider member receiving means and the slider member can save other additional components to assist the guide operation, so the manufacturing cost of the wedge drive can be greatly reduced compared to the prior art.

1 wedge drive
2 slider element receiving means
3 slider element
4 receiving means for processing tool
5 driver element
6 dovetail-like or prism guide means
7 positively acting return clamp
8 vertical line
9 horizontal line
10 spring element (gas pressure spring)
20 part
21 sliding surface
22 sliding surface
23 sliding surface
24 sliding surface
25 recess
26 first sliding plate
27 first sliding plate
28 fixing screw
29 fixing screw
30 dovetail-like or prismatically shaped portion
31 sliding surface
32 sliding surface
33 sliding surface
34 sliding surface
35 protruding portion
36 second sliding plate
37 second sliding plate
38 second sliding plate
39 second sliding plate
40 protrusion
41 T-shaped groove
42 wedge shaped surface
43 sliding surface
44 sliding surface
50 wedge portion
70 protruding portion
300 wedge-shaped receiving surface
301 sliding surface
302 sliding surface
303 sliding surface
304 sliding plate
305 bore
306 fixing screw

Claims (21)

As a wedge drive (1) comprising a slider element receiving means (2), a movable slider element (3) and a driver element (5),
Sliding surfaces 301, 302 are provided between the slider member 3 and the drive member 5,
Dovetail-like or prism guide means 6 provided on the slider member 3 and having sliding surfaces 31 to 34, and sliding surfaces 21-provided on the slider member receiving means 2. In the wedge drive, 24 is arranged between the slider member 3 and the slider member receiving means 2,
The sliding surfaces 32, 34 provided on the slider member 3 are arranged inclined with respect to each other,
Due to this, a force is transmitted from the slider member receiving means 2 to the slider member 3 during the working stroke, during which the slider member 3 is driven by the drive member 5 and the slider member. Is moved outwardly between the receiving means 2,
The sliding surfaces 32, 34 are characterized in that they are larger than the sliding surfaces 31, 33 which allow force to be transferred from the slider member receiving means 2 to the slider member 3 during a rear stroke. Made,
Wedge drive (1).
The method of claim 1,
The slider member receiving means 2 is moved away from the drive member 5 during the rear stroke.
Wedge drive (1).
3. The method according to claim 1 or 2,
The dovetail or prism guide means 6 comprise two first sliding plates 26, 27 and two pairs of second sliding plates 36 and 37, 38 and 39 which are arranged inclined relative to one another. Characterized in that,
Wedge drive (1).
The method of claim 3, wherein
The cross section of the first sliding plate 26, 27 of the dove-shaped or prism guide means 6 is characterized in that generally L-shaped,
Wedge drive (1).
The method of claim 3, wherein
Characterized in that two pairs of second sliding plates 36 and 37, 38 and 39 are provided inclined with respect to each other,
Wedge drive (1).
3. The method according to claim 1 or 2,
Said dovetail or prism guide means (6) is characterized in that it comprises a positively locking connection between the slider member (3) and the slider member receiving means (2),
Wedge drive (1).
The method of claim 3, wherein
The slider member accommodating means 2 is configured to protrude from any one or both of an area in which the first sliding plates 26 and 27 are accommodated and an area of the sliding surfaces 21, 22, 23, and 24. Characterized in that,
Wedge drive (1).
The method of claim 3, wherein
The first and second sliding plates 26, 27, and 36 and 37, 38 and 39 may be released to any one or both of the slider member receiving means 2 and the slider member 3. Characterized in that is fixed to the
Wedge drive (1).
3. The method according to claim 1 or 2,
A wedge guide is provided between the slider member 3 and the drive member 5, wherein the wedge guide comprises a wedge portion 50 and a wedge shaped receiving surface 300.
Wedge drive (1).
The method of claim 9,
The wedge-shaped receiving surface 300 is provided with two sliding plates 303, 304 arranged at an angle to each other,
Wedge drive (1).
The method of claim 9,
Said dovetail or prism guide means 6 and said wedge guide are provided inclined with respect to each other on said slider member 3,
Wedge drive (1).
The method of claim 9,
Said dovetail or prism guide means 6 and said wedge guide are provided on two mutually adjacent sides of said slider member 3,
Wedge drive (1).
A movable slider member 3 for a wedge drive 1 comprising a slider member receiving means 2 and a drive member 5,
The slider member 3 is provided between the slider member receiving means 2 and the drive member 5,
The slider member 3 has a dovetail or prismatic portion 30 with sliding surfaces 31 to 34,
The sliding surfaces 32, 34 provided on the slider member 3 are arranged inclined with respect to each other,
Due to this, a force is transmitted from the slider member receiving means 2 to the slider member 3 during the working stroke, during which the slider member 3 is driven by the drive member 5 and the slider member receiving means 2. Moved outwards,
The sliding surfaces 32, 34 are characterized in that they are larger than the sliding surfaces 31, 33 which allow force to be transmitted from the slider member receiving means 2 to the slider member 3 during the rear stroke.
Slider member 3.
The method of claim 13,
The slider member receiving means 2 is moved away from the drive member 5 during the rear stroke.
Slider member 3.
The method according to claim 13 or 14,
Said dove-shaped or prismatic portion 30 has a surface in contact with the second sliding plate 36, 37, 38, 39,
Slider member 3.
The method of claim 15,
Characterized in that two pairs of second sliding plates 36 and 37, 38 and 39 are provided inclined with respect to each other,
Slider member 3.
The method of claim 13,
A second side is provided in a relationship adjacent to the first side that is the dove-shaped or prismatic portion 30,
Said second side has at least one wedge shaped receiving surface 300 to be connected to said drive member 5,
Slider member 3.
The method of claim 17,
At least one sliding plate 303, 304 is provided to be attached to the wedge shaped receiving surface 300,
Slider member 3.
The method of claim 17,
The slider member 3 has a third side adjacent to the first and second side,
Said third aspect has a receiving means 4 for receiving a processing device,
Slider member 3.
The method of claim 19,
The third aspect is characterized in that it has at least one or both of two or more undercut configurations and grooves 41 for the insertion of the projections 40 of the receiving means 4 for processing equipment,
Slider member 3.
21. The method according to claim 19 or 20,
Wherein said third side is provided on at least one wedge-shaped surface,
Slider member 3.

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