JP6992055B2 - Tools and tool machines and methods for machining plate features - Google Patents

Description

The present invention relates to tools, tool machines and methods for machining plate-like workpieces, preferably sheet metal.

Such tool machines are known from European Patent No. 2527058. This publication discloses a tool machine in the form of a pressurizer for machining the feature, allowing the upper tool to move in and out of the stroke axis with respect to the feature to be machined. It is provided in a stroke device. A lower tool located in the stroke axis and on the lower side facing the upper tool is provided. The stroke drive device for the stroke movement of the upper tool is controlled by the wedge gear. A stroke drive device with an upper tool placed on it can be moved across the positioning shaft by motor drive. The lower tool moves to the upper tool in synchronization with the motor drive.

From German Patent Application Publication No. 102006049044, tools for machining plate-like workpieces that can be used, for example, in the tool machine of European Patent No. 2527058 are known. Tools for cutting and / or deformation of this plate feature include punching stamps and punching molds. To machine the workpieces placed between the stamp and the punching mold, they move in the stroke direction with respect to each other. A cutting tool having a cutting edge is arranged on the punching stamp, and the punching mold is provided with at least two counter-cutting edges. The punching stamp and the punching mold are rotatable around a shared positioning axis that correlates with each other. At that time, the counter-cutting edge portion is oriented to the common positioning axis so that the cutting edge portion of the cutting tool is positioned with respect to the counter-cutting edge portion by the rotational movement of the cutting tool of the punching stamp. The counter-cutting edge corresponds to the spacing of the cutting edge to the shared positioning axis in the spacing to the positioning axis.

Further known from European Patent No. 2177289 are tools for cutting and / or deforming plate features. This tool also includes punching stamps and punching molds oriented to a positioning axis shared with each other. Since the punched stamp is rotatably supported around this positioning axis, at least one cutting edge of the cutting tool can be oriented with the punching stamp to at least one counter-cutting edge of the punching die. The punching mold contains an opening in the geographic surface for the workpiece through which the separated workpiece parts can be ejected. Adjacent to the opening is another counter-cutting edge, which has the same spacing as that the other counter-cutting edge has at the opening with respect to the positioning axis. A sheet metal discharge surface is provided at the counter-cutting edge of the punching mold outside the opening. In the case of this tool as well, the distance of the counter-cutting edge to the positioning shaft corresponds to the distance of the cutting tool of the punching stamp to the positioning shaft.

From International Publication No. 02/043892, tools for cutting plate-shaped workpieces having upper and lower tools are known. Top tools include clamp shafts and substrates that are in a shared positioning shaft. The substrate is provided with a machining tool facing the clamp shaft. The lower tool includes a substrate with a geographic feature for the workpiece and an opening in the countertop. The cutting edge of the feature is tilted and oriented with respect to the surface of the workpiece to provide a flute.

European Patent No. 2527058 German Patent Application Publication No. 102006049044. European Patent No. 2177289 International Publication No. 02/043892

It is an object of the present invention to propose tools, tool machines and methods for cutting and / or deforming plate features that improve flexibility in machining the features.

This problem is solved by a tool for cutting and / or deforming a plate-shaped workpiece, which is particularly sheet metal and has the characteristics of claim 1.

The tool for machining a plate-like workpiece has a machining tool that acts on the workpiece, in which case the tool body that receives the machining tool has a longitudinal axis that is tilted with respect to the tool rotation axis or the positioning axis of the upper tool. Have. This machining tool is preferably provided on the upper tool. By controlling the stroke motion of the upper tool, which can control the movement in the Y and Z directions, a particularly tilted stroke motion deviating from the vertical stroke motion can be performed. It is realized that an oblique cut can be formed at the workpiece or the edge of the workpiece by such an inclined transition stroke motion. This allows, for example, the production of sloping partial edges. Similarly, weld edge preparation in the workpiece can be provided. This makes it possible to perform machining, especially punching strokes, with downward or upward flanges protruding from the surface of the workpiece. Such flanges can result in right-angled partial edges, or sloping partial edges. As such, the tool body tilted towards the positioning axis allows for further machining such as bending markings or deformations.

The inclination of the longitudinal axis of the tool can determine the orientation for the cut surface of the workpiece. Preferably, the stroke motion of the upper tool to the lower tool can also be controlled so that it travels across the longitudinal axis of the tool body.

It is preferably contemplated that the longitudinal axis of the machining tool will tilt at an angle of up to 90 ° with respect to the positioning axis. This realizes that, for example, in the case of a geographic feature that sits on the geographic feature, it is possible to machine the front or front of the feature that can be oriented perpendicular to the geographic feature, for example.

In the first embodiment of the machining tool, it is formed as a cutting tool and it is contemplated that it will have at least one cutting edge at the free end of the tool body. Various cutting contours or processes can be performed by such cutting edge contours and in conjunction with the counter-cutting edges of the punching mold.

A stamp surface oriented at a right angle to the longitudinal axis of the tool body is preferably provided on the tool body, and at least one cutting edge is provided on the stamp surface. Advantageously, the entire stamped surface may be defined by a peripheral cut edge. For example, with such a tool body with upper and lower cut edges on the stamp surface, as well as lateral cut edges connecting the upper and lower cut edges, the lower and upper bevels are workpieces. Can be brought to you in an easy way. It is more preferably contemplated that the counter-cutting edge of the punching die is on the base surface of the substrate of the lower tool. As long as the upper tool with the tilted tool substrate is moved towards the punching mold, a tilted cutting edge can be created on the workpiece seated on the punching mold.

Alternatively, it may be conceivable that the support surface defined at the counter-cutting edge is inclined with respect to the base surface of the lower tool substrate, preferably projecting in the direction of the upper tool. The slope of the support surface advantageously corresponds to the slope of the stamp surface. In the case of stroke motion oriented perpendicular to the support surface, a partial edge perpendicular to the upward workpiece part can be made.

It is more preferably contemplated that a perforated surface formed inclined or parallel to the longitudinal axis of the workpiece substrate defined at the counter-cutting edge is formed. At that time, it may be possible to support the tool body during the stroke movement. Preferably, the perforated surface is tilted with respect to the longitudinal axis of the tool body, so that the perforated surface is separated from it by the increasing working stroke of the tool body.

A further embodiment of the tool contemplates providing counter-molds spaced apart from the perforated surface. The spacing is then intended to match the thickness or size of the tool body guided between the perforated surface of the stroke motion and the countermold. Such counter-molds can prevent unwanted workpieces from being lifted from the table surface of the punching mold.

The support surface of the punching mold defined at the counter-cutting edge preferably matches the angle of the flange of the workpiece to be machined. Thereby, during flange processing, the angle of the previously brought flange can be maintained.

In an alternative embodiment of the feature this is formed as a printing or engraving tool. The tilted orientation of the printing or engraving tool may be intended to mark on the flange or on the front of the workpiece.

Alternatively, it is conceivable that the tool is a bending and / or deforming tool. This can bring various contours to the feature.

As a further alternative to the tool, it is intended to form an embossed tool.

The underlying problem of the present invention is further solved by a tool machine for machining plate features, in which the tool machine moves along the upper positioning axis of the upper tool and moves along the lower positioning axis of the lower tool. Can be controlled independently of each other, and a tool body is provided for machining the workpiece, in which the machining tool is tilted with respect to the positioning axis of the upper tool. The tool machine can control the stroke motion of the upper and / or lower tools that are outside the Z axis and can be overlapped by motion along the Y axis. This improves flexibility both in the processing and application of geographic features.

The underlying problem of the present invention is further solved by a method for machining plate features, which has a machining tool tilted and oriented with respect to the positioning axis of the tool and is an upper tool. And / or a tool whose lower tool is controlled by a stroke motion outside the stroke axis is applied. Thereby, the variety in the processing of the workpiece can be improved.

It is preferably contemplated that the stroke motion of the upper and / or lower tools having a linear stroke motion tilted with respect to the stroke axis is controlled. For example, this tilted linear stroke motion along the longitudinal axis of the tool body can be oriented to the machining tool. It may be alternatively attempted to control the curvilinear or arcuate stroke motion with respect to the stroke axis, in particular the Z axis. Depending on the parameters corresponding to the movement of the upper tool to the lower tool, not only cutting or shearing but also chamfering or deformation can be achieved by rounded or curved contours.

A further embodiment for machining the workpiece is that the upper tool moves to the lower tool by stroke motion along the stroke axis and subsequently along the upper positioning axis, and the stroke motion followed by movement along the positioning axis. It is preferably intended that the lower tool rests and occupies the position during the period. Thereby, for example, folding can be performed on the cut-out connecting metal of the workpiece. Thereby, a flange can also be generated. The swivel angle of the flange can be adjusted according to the movement route along the stroke axis and the positioning axis. For example, if a stroke motion of the upper tool to the lower tool achieves a flange that is bent 90 °, then subsequent movement along the upper positioning axis introduces further turning motion of the flange, so that the fitting or flange is the workpiece surface. Can be bent 90 ° or more with respect to.

To adjust the top and / or bottom tool to the tool cut, or to adjust the cut width between the cut edge of the punch stamp and the counter-cut edge of the punching mold, or to separate the residual connections. It is more preferably contemplated that the upper and / or lower tools are controlled by rotational movements around their positioning axes and / or movements along their respective positioning axes for adjustment.

The present invention and further advantageous embodiments and developments thereof will be described and described in detail with reference to the examples shown in the drawings below. The features obtained from the description and drawings may be applied individually or in any combination according to the present invention.

FIG. 1 is a perspective view of the tool machine of the present invention. FIG. 2 is a schematic diagram of the basic structure of the stroke drive device and the motor drive device of FIG. FIG. 3 is a schematic table of overlapping stroke motions of the tappet of FIG. 1 in the Y and Z directions. FIG. 4 is a schematic table of further overlapping stroke movements of the tappet of FIG. 1 in the Y and Z directions. FIG. 5 is a schematic view of the tool machine having the geographic feature of FIG. 1 as viewed from above. FIG. 6 is a schematic side view of a first embodiment of a tool for an inclined punching stroke. FIG. 7 is a perspective view of the tool of FIG. FIG. 8 is a schematic side view of an alternative embodiment of the tool of FIG. 9 is a perspective view of the tool of FIG. FIG. 10 is a schematic side view of a further alternative embodiment of the tool of FIG. FIG. 11 is a perspective view of the tool of FIG. 10 at the working position. FIG. 12 is a perspective view of a further alternative embodiment of the tool of FIG. FIG. 13 is a further perspective view of an alternative embodiment of the tool of FIG. FIG. 14 is a schematic side view of a further alternative embodiment of the tool. FIG. 15 is a perspective view of an alternative embodiment of the tool of FIG. FIG. 16 is a perspective view of a tool for embossing a workpiece. FIG. 17 is a perspective view of a tool for deforming a workpiece. FIG. 18 is a perspective view of a tool for folding a workpiece. FIG. 19 is a schematic side view for showing the folding process of the workpiece. FIG. 20 is a schematic side view for showing the folding process of the workpiece. FIG. 21 is a schematic side view for showing the folding process of the workpiece. FIG. 22 is a schematic side view for showing the folding process of the workpiece. FIG. 23 is a schematic side view of a further alternative embodiment of the tool for bending the workpiece.

FIG. 1 shows a tool machine 1 formed as a stamping press. The tool machine 1 includes a support structure with a closed machine frame 2. This mechanical frame includes two horizontal frame legs 3, 4 and two vertical frame legs 5, 6. The machine frame 2 includes a frame interior 7 that forms the work area of the tool machine 1 having the upper tool 11 and the lower tool 9.

The tool machine 1 is used for machining a plate-like workpiece 10 that may be placed within the frame interior 7 for machining purposes, which is not shown in FIG. 1 for simplification. The work piece 10 to be machined is placed on a work piece support 8 provided in the frame interior 7. The lower tool 9 is supported by the lower horizontal frame leg 4 of the machine frame 2 in the recess of the workpiece support 8, for example, in the form of a punching mold. The punching mold may be provided with a mold opening. At the time of punching, the upper tool 11 formed as a punching stamp sinks into the mold opening of the lower tool formed as a punching mold.

The upper tool 11 and the lower tool 9 can be used for the deformation of the workpiece 10 as a bending stamp and a bending mold instead of the punching stamp and the punching mold.

The upper tool 11 is fixed in the tool holder at the lower end of the tappet 12. The tappet 12 is a portion of the stroke drive device 13 that can be used by the upper tool 11 to move the upper tool 11 along the stroke axis 14 in the stroke direction. The stroke axis 14 extends in the direction of the Z axis of the coordinate system of the numerical control 15 of the tool machine 1 implied in FIG. The stroke drive device 13 may be moved in the direction of the double arrow across the positioning shaft 16 perpendicular to the stroke shaft 14. The positioning axis 16 extends in the Y direction of the coordinate system of the numerical control 15. The stroke drive device 13 that receives the upper tool 11 moves across the positioning shaft 16 using the motor drive device 17.

The movement of the tappet 12 along the stroke axis 14 and the positioning of the stroke drive device 13 along the positioning axis 16 extend in the form of the drive device 17, especially towards the positioning axis 16, and are fixedly coupled to the machine frame 2. This is done using a motor drive 17 in the form of a spindle drive 17 having a drive spindle 18. The stroke drive device 13 is guided over the positioning shaft 16 on the three guide rails 19 of the upper frame legs 3 during exercise. Among them, the guide rail 19 can be identified in FIG. The remaining guide rail 19 extends in parallel with the illustrated guide rail 19 from which an interval is provided in the direction of the X-axis of the coordinate system of the numerical control device 15. The guide shoe 20 of the stroke drive device 13 moves on the guide rail 19. The mutual engagement of the guide rail 19 and the guide shoe 20 is formed so that this coupling between the guide rail 19 and the guide shoe 20 can also receive a load acting in the vertical direction. Correspondingly, the stroke device 13 is suspended by the machine frame 2 over the guide shoe 20 and the guide rail 19. Another component of the stroke drive 13 is the wedge gear 21, which allows the position of the upper tool 11 to be adjustable with respect to the lower tool 9.

The lower tool 9 is movably received along the lower positioning shaft 25. The lower positioning axis 25 extends in the direction of the Y axis of the coordinate system of the numerical control 15. Preferably the lower positioning shaft 25 is oriented parallel to the upper positioning shaft 16. The lower tool 9 may move directly along the positioning shaft 25 by the motor control device 26 at the lower positioning shaft 16. Alternatively or complementarily, the lower tool 9 is also provided in the stroke drive device 27 which is movable along the lower positioning shaft 25 using the motor control device 26. The control device 26 is preferably formed as a spindle drive device. The lower stroke drive device 27 may correspond to the structure of the upper stroke drive device 13. Similarly, the motor control device 26 may correspond to the motor control device 17.

The lower stroke drive device 27 is similarly slidably supported by a guide rail 19 assigned to the lower horizontal frame leg 4. Since the guide shoe 20 of the stroke drive device 27 moves on the guide rail 19, the connection between the guide rail 19 and the guide shoe 20 can also receive a load acting horizontally by the lower tool 9. Correspondingly, the stroke drive device 27 is also suspended by the mechanical frame 2 over the guide shoe 20 and the guide rail 19 with a space between the guide rail 19 and the guide shoe 20 of the upper stroke drive device 13. The stroke drive 27 can also include a wedge gear 21 that can adjust the position or height of the lower tool 9 along the Z axis.

Numerical control 15 allows both the motor drive 17 for movement along the upper positioning shaft 16 of the upper tool 11 and the single or multiple motor drives 26 for movement along the lower positioning shaft 25 of the lower tool 9 to each other. Can be controlled independently of. Thereby, the upper and lower tools 11 and 9 can be synchronously moved in the direction of the Y axis of the coordinate system. Similarly, the independent movements of the upper and lower tools 11 and 9 can be controlled in different directions. These independent movements of the upper and lower tools 11 and 9 can be controlled simultaneously. Improved machining flexibility of the workpiece 10 is achieved by releasing the interlocking movement between the upper tool 11 and the lower tool 9. The upper and lower tools 11 and 9 for machining the workpiece 10 can be formed in various ways.

The component of the stroke drive device 13 is the wedge gear 21 shown in FIG. The wedge gear 21 includes two input side wedge gear members 122 and 123 and two output side wedge gear members 124 and 125. The latter is constructively grouped into a structural unit in the form of a double wedge 126 on the output side. The tappet 12 is rotatably supported around the stroke shaft 14 on the double wedge 126 on the output side. The motor rotation drive device 128 is housed in the double wedge 126 on the output side, and the tappet 12 is moved along the stroke shaft 14 as needed. At that time, the tappet 12 can be rotated to the left or to the right by the double wedge shown in FIG. The tappet bearing 129 is schematically shown. On the one hand, the tappet bearing 129 allows a rotational movement with less friction around the stroke shaft 14 of the tappet 12, while the tappet bearing 129 axially supports the tappet 12 and the stroke shaft 14 on the tappet 12 accordingly. The load acting in the direction of is carried out into the double wedge 126 on the output side.

The output-side double wedge 126 is defined by a wedge surface 130 and a wedge surface 131 of the output-side drive member 125. The wedge surfaces 130 and 131 of the wedge gear drive members 124 and 125 on the output side face the wedge surfaces 132 and 133 of the wedge drive members 122 and 123 on the input side. By the vertical guides 134 and 135, the wedge drive member 122 on the input side and the wedge drive member 124 on the output side, and the wedge drive member 123 on the input side and the wedge drive member 125 on the output side are driven in the Y-axis direction, that is, stroke drive. They are guided relatively movably with respect to each other in the direction of the positioning shaft 16 of the device 13.

The wedge gear member 122 on the input side has a motor drive unit 138, and the wedge drive member 123 on the input side has a motor drive unit 139. Both drive units 138 and 139 jointly form the spindle drive device 17.

Common to the motor drive units 138 and 139 are the stroke drive devices 13 and 27 axially supported by the drive spindle 18 and the mechanical frame 2 shown in FIG. 1 and as a result, the support structure side.

With respect to the motor drive units 138 and 139, the input side wedge drive members 122 and 123 move, for example, toward each other along the positioning shaft 16, thereby, on the one hand, between the input side wedge drive members 122 and 123. On the other hand, it is operated so that a relative motion occurs between the wedge drive members 124 and 125 on the output side. As a result of this relative motion, the output-side double wedge 126 and the tappet 12 supported by it move downward along the stroke axis 14. A punched stamp attached to the tappet 12, for example as an upper tool 11, performs a work stroke, at which time the workpiece 10 placed on the workpieces 28, 29 or the workpiece support 8 is machined. The opposition to each other of the wedge drive members 122, 123 causes the tappet 12 to be lifted or moved upward again along the stroke axis 14.

The stroke drive device 13 of FIG. 2 described above is preferably formed in the same manner as the lower stroke drive device 27 and receives the lower tool 9.

FIG. 3 shows a schematic table of possible stroke movements of the tappet 12. The table shows the course of strokes along the Y and Z axes. The overlapping control of the movement of the tappet 12 along the stroke axis 14 and the positioning axis 16 is controlled so that, for example, the stroke motion diagonally extending below the tappet 12 to the workpiece 10 is indicated by the first straight line A. obtain. Subsequently after performing the stroke, the tappet 12 can be lifted vertically, for example as indicated by the straight line B. In order to position the tappet 12 in a new working position on the workpiece 10, only movement along the Y axis of a straight line C, for example, is subsequently performed. This can be followed, for example, by repeating the work sequence described above. As long as the workpiece 10 is moved on the workpiece bases 28, 29 for the subsequent machining step, the movement along the straight line C may also be omitted.

The possible stroke movement of the tappet 12 with the upper tool 11 shown in the table of FIG. 3 is preferably combined with the stationary lower tool 9. The lower tool 9 is then positioned within the machine frame 2 so that the upper and lower tools 11 and 9 occupy defined positions at the end of the working stroke of the upper tool 11.

This exemplary overlapping stroke process can be controlled for both the upper tool 11 and the lower tool 9. Overlapping stroke movements of the upper and / or lower tools 11 and 9 can be controlled depending on the machining of the workpiece 10 to be performed.

In FIG. 4, a schematic table showing the stroke motion of the tappet 12 is shown by the line D schematically shown along the Y-axis and the Z-axis. Deviating from FIG. 3, in this embodiment, the stroke movement of the tappet 12 can follow a curved or arcuate transition by appropriately controlling the overlap of movements in the Y and Z directions by the control 15. Is intended. Such flexible duplication of movement in the X and Z directions solves the challenges inherent in machining. Control of such curvilinear transitions may be contemplated for the upper tool 11 and / or the lower tool 9.

FIG. 5 shows a schematic view of the tool machine 1 of FIG. One work table 28 and 29 extend to the side of the machine frame 2 of the tool machine 1, respectively. The work table 28 may be assigned, for example, to a loading station on which the raw work 10 is placed on the work table 28, which is not shown in detail. A feeding device 22 including a plurality of grips 23 is provided in order to grip the workpiece 10 defined on the workpieces 28 and 29 and mounted on the workpiece 28. Using the feeder 22, the workpiece 10 is guided in the X direction through the machine frame 2. Preferably, the feeder 22 can be movably controlled in the Y direction as well. Thereby, free movement of the work 10 on the XY planes can be attempted. The work piece 10 can move in the X direction and in the direction opposite to the X direction by the feeding device 22 according to the work task. This movement of the workpiece 10 can be adapted to movement in the Y direction and vice versa for the respective machining tasks of the upper tool 11 and the lower tool 9.

Another workpiece 29 is provided on the machine frame 2 facing the workpiece 28. This can be assigned, for example, to an unloading station. The loading and unloading of the machined workpiece 10 having the raw workpiece 10 and the workpiece 81 as an alternative may also be assigned to the same workpieces 28, 29.

The tool machine 1 may further include a laser processing device 201, particularly the laser cutting machine shown in the top view of FIG. 5 only schematically. This laser processing device 201 can be formed as, for example, a CO ₂ laser cutting machine. The laser machining apparatus 201 includes a laser source 202 that produces a laser beam 203 that is guided and focused in a laser machining head, particularly a laser cutting head 206, using a generally shown light beam guide 204. The laser beam 204 is then oriented perpendicular to the surface of the workpiece 10 by a cutting nozzle to machine the workpiece 10. The laser beam 203 acts on the workpiece 10 at the machining site, especially at the cutting site, preferably with the process gas flow. The cutting position where the laser beam 203 is generated on the workpiece 10 is adjacent to the machining position of the upper tool 11 and the lower tool 9.

The laser cutting head 206 is movable at least in the Y direction, preferably in the Y and Z directions, by a linear drive 207 having a linear axis system. This linear axis system that receives the laser cutting head 206 may be assigned to the machine frame 2 and fixed or integrated therein. Under the working space of the laser cutting head 206, a ray path opening may be provided in the workpiece 28. Preferably, a ray capture device for the laser beam 21 may be provided beneath the ray path opening. The ray passage opening and optionally the ray capture device can be formed as a structural unit.

The laser processing apparatus 201 may also include, as an alternative, a solid-state laser whose light beam is guided to the laser cutting head 206 with the help of optical wiring as the laser source 202.

The work bases 28, 29 may extend directly to the work support 8 where the lower tool 9 at least partially surrounds. Within the space created between them, the lower tool 9 can move in the Y direction and vice versa along the lower positioning axis 25.

For example, the machined work piece 10 is placed on the work table 28, and the work part 81 is cut out from the cut 83, except for the residual connection 82, by punching or laser beam processing, for example. This residual connection keeps the workpiece 81 in the workpiece 10 or the rest of the residual grid. To separate the geographic part 81 from the geographic 10 the geographic part 10 is positioned on the upper and lower tools 11 and 9 for punching and ejection steps using the feeder 22. At that time, the residual connection 82 is separated by the punching stroke of the upper tool 11 to the lower tool 9. The work component 81 may be ejected downward, for example, by partial descent of the work support 8. Alternatively, in the case of a relatively large work part 81, the cut out work part 81 is returned to the work table 28 or the work table 29 again to carry out the work part 81 and the residual grid. The small workpiece part 81 may also optionally be ejected through an opening in the lower tool 9.

FIG. 6 shows a side view of the first embodiment of the tool 31. FIG. 7 shows a perspective view of the tool 31 of FIG. The tool 31 includes a punching stamp 11 formed as a punching tool and forming the upper tool and a punching mold 9 for forming the lower tool. The punched stamp 11 comprises a clamp shaft 34 and an adjusting member or index member, or a substrate 33 having an adjusting wedge or index wedge 36. The clamp shaft 34 serves to fix the punched stamp 11 to the upper tool holder on the machine side. At that time, the orientation of the punched stamp 11 or the rotation position of the punched stamp 11 is determined by the index wedge 36. The punched stamp 11 then rotates about the rotation shaft 35. The rotating shaft 35 also forms the longitudinal axis of the clamp shaft 34 and preferably the longitudinal axis of the substrate 33. By accepting the rotation position of the punching stamp 11 to the upper tool holder, the machining tool 37 shown as the cutting tool in the embodiment is oriented toward the punching mold 9. The punching mold 9 also includes a substrate 41 that is adapted to be secured in a rotation position defined by, for example, at least one index member 42 in a lower tool holder on the machine side. At that time, the punching mold 9 can rotate about the position axis 48. This forms the longitudinal axis of the substrate 41 or the central axis in the longitudinal direction. A scraper or presser device not shown in detail may be provided between the punching stamp 11 and the punching mold 9.

The punching mold 9 includes an opening 46 defined in the substrate 41, preferably defined on a pedestal surface 47 that surrounds the substrate 41. Since the opening 46 preferably completely penetrates the substrate 41, the workpiece 81 punched or cut out through the opening 46 can be ejected.

The machining tool 37 on the punched stamp 11 includes a tool body 39 provided with a free end of the cutting edge 38 thereof. The cut edge 38 may circulate around it. Alternatively, the cut edge 38 may be formed only in the region of the punched surface 56. The longitudinal axis 40 of the tool body 39 is tilted at an angle α with respect to the position axis 35. The longitudinal axis 40 of the tool body 39 is outside the position axis 35. In the embodiment, the tool body 39 is formed as a vertically long rectangular parallelepiped. A stamp surface 43 defined by a cutting edge 38 is provided at the free end of the tool body 49. The stamp surface 43 is preferably oriented at a right angle to the longitudinal axis 40 of the tool body 39. It could also be envisioned that instead of the vertically elongated rectangular tool body 39, a square, circular, oval, or other contoured tool body 39 could be provided, which is then longitudinal for all shapes of the tool body. The axis 40 is tilted and oriented with respect to the position axis 35.

The punching mold 9 includes a counter-cutting edge 51 inside the opening 46, preferably defined by the pedestal 37. The counter-cutting edge portion 51 on the inner side is provided on the support surface 61 that protrudes from the pedestal surface 47 and is inclined at an angle corresponding to the angle of the stamp surface 43. The punched surface 56 defined in the counter-cutting edge 51 on the inside can advantageously be formed parallel to the longitudinal axis 40 of the tool body 39 or stand perpendicular to the support surface 61. Preferably, since the punched surface 56 is inclined, for example, 1 ° to 2 ° perpendicular to the support surface 61, the punched surface 55 is oriented at an angle smaller than 90 ° with respect to the support surface 61. The punched surface 56 corresponds to a wall forming the outside of the tool body 39 starting from the cutting edge 38.

The tool 31 makes it possible to realize a cutting edge perpendicular to the machined workpiece 10 having the flange 62 brought therein in the region of the flange 62 during punching of the raised residue. do. The support surface 61 is oriented with respect to the base surface 47 at an angle corresponding to the angle of the flange of the work 10 with respect to the work surface. The longitudinal axis 40 of the tool body 39 in the punched stamp 11 is again oriented as a normal to the flange 62.

Independent control of the upper tool 11 and lower tool 9 along their positioning axes 16 and 25 in the tool machine 1 and independent control of the stroke motion along the stroke axes 14 and 30 to the tilted axis. Linear stroke movement along can be controlled. Any curved or arcuate stroke motion can also be controlled. In the case of the tool 31 of FIGS. 6 and 7, for example, the punching mold 9 can be stationary and controlled in the tool machine 1 during the working stage, whereas the punching stamp 11 is driven by a stroke motion along an inclined axis. Be controlled. This inclined shaft corresponds to the longitudinal shaft 40 of the tool body 39. Thereby, a right-angled partial edge can be generated on the flange 62.

FIG. 8 shows a side view of an alternative embodiment of the tool 31 of FIG. FIG. 9 shows a perspective view of the tool 31 of FIG. In this embodiment, the stamp stamp 11 corresponds to the embodiment shown in FIGS. 6 and 7.

The punching mold 9 deviates from the embodiments of FIGS. 6 and 7 in the embodiment of the counter-cutting edge 51 inside. The counter-cutting edge portion 31 on the inner side is located, for example, on the same plane as the pedestal surface 37. A punched surface 56 parallel to the longitudinal axis 40 of the tool body 39 in orientation is connected to the opposing edge portion 51 on the inner side.

The tool 31 allows for another inclined punching stroke. At that time, an inclined partial edge is generated on the flat workpiece 10. The control for achieving the inclined partial edge of the tool 31 is performed in correspondence with the control of the tool 31 described above in FIGS. 4 and 5. The angular position of the longitudinal axis 40 of the tool 39 and the orientation of the corresponding punched surface 56 determine the angular position of the front surface of the feature 10 or the feature 81.

FIG. 10 shows an alternative embodiment of the tool 31 of FIG. FIG. 11 is a cross-sectional view showing a perspective view of the tool 31 of FIG. In this tool 31, the punching stamp 11 having the tool body 39 corresponds to the embodiment of FIG. In this embodiment, it is exemplified that the stamp stamp 11 is formed by two portions. The clamp shaft 34 and the tool body 39 are integrally and preferably fixed to the substrate 33 by a clamp connection. The punching mold 9 is formed so that the counter-cutting introduction portion 50 is provided on the punching mold 9. The counter-cutting introduction section 50 may be interchangeably provided on the substrate 41 of the punching mold 9, for example. The counter-cutting introduction section 50 includes at least one inner counter-cutting edge section 51 assigned to the opening 46 in the substrate 41 of the punching mold 9. The counter-cutting introduction portion 50 is formed on the workpiece 10 in cooperation with the upper tool 11 to form an upper inclined surface 64. The beveled surface 64 is shown, for example, in the cross-sectional view of FIG.

Each of the counter-cutting introduction portions 50 has a U-shaped recess defined by a counter-cutting edge portion 51 inside, which is oriented perpendicular to, for example, the pedestal surface 47 of the punching mold. The spacing between the counter-cutting edges 51 is adapted to the width of the tool body 39 or the cutting edge 38. Thereby, the defined length of the bevel surface 64 can be brought to the working stroke. The counter-cutting introduction portion 50 has a support surface 61 protruding from the pedestal surface 67. The front surface of the workpiece 10 comes into contact with the support surface 61.

For example, a 45 ° bevel can be introduced by the stroke movement of the upper tool 11 controlled along the longitudinal axis 40 of the tool body 39. When the cutting edge 38 of the upper tool 11 is seated and engaged with the workpiece 10, it is pressed against the support surface 61 by the counter-cutting introduction section 50. Subsequently, the material is sheared by subduction of the stamp surface 43 having at least one cutting edge 38 disposed above the U-shaped opening defined by the counter-cutting edge 51. To. The sheared material is discharged downward through the opening 46.

The gradual lateral movement of the workpiece 10 can result in a bevel surface 64 over a relatively large area in front of the workpiece 10. This is done, for example, by moving the upper tool 11 and the lower tool 9 along the Y axis, or by controlling the feeder 22 as long as the front surface of the workpiece 10 to be machined is oriented along the X axis. ..

FIG. 12 shows a schematic cross-sectional view of an alternative embodiment of the tool 31 in the working position. FIG. 13 shows the tool 31 of FIG. 12 in a further perspective sectional view.

The tool 31 of FIGS. 12 and 13 deviates from the tool 31 of FIGS. 10 and 11 by providing a bevel surface 64 on the lower surface of the workpiece 10. The upper tool 11 corresponds to the embodiment of the tool 31 of FIG. 10 or FIG. The punching mold 9 deviates from the embodiment of FIG. 10 and has an alternative embodiment of the counter-cutting introduction unit 50. The counter-cutting introduction portion 50 is assigned to the opening 46 in the substrate 41 of the punching mold 9. The counter-cutting introduction section 50 also has a passage opening 52 in which the tool body 39 of the upper tool 11 can at least partially sink during the working stroke. The passage opening 52 of the counter-cutting introduction section 50 is adapted to the shape of the tool body 39, in particular the stamped surface 43 and at least one cutting edge 38 provided therein. The upper side of the counter-cutting introduction portion 50 is oriented in the same plane as the base surface 47 of the substrate 41 of the punching mold 9.

In order to provide the beveled surface 64 on the lower front surface of the workpiece 10, the lower cut edge 38 can abut and pass through the boundary of the passage opening 52 after the first stroke step, with respect to the cut edge 38. The work 10 is positioned relative to the passage opening 52 such that the work 38 engages the front surface of the work 10. During the further stroke movement, the tool body 39 is supported by the passage opening 52 and the bevel surface 64 is provided by the cutting edge 38. The workpiece 10 is supported by the counter-cutting edge 51.

In order to keep the workpiece 10 pressed against the surface 47, a counter mold (not shown in detail) or a presser device preferably formed in a plate shape may be provided on the upper side of the workpiece 10 of the workpiece 10.

The bevel surface 64 can be a structural component of the workpiece 10 to be manufactured. Similarly, deburring of the workpiece 10 can be performed. Therefore, the introduction or flattening of the beveled surface 64 can also be a preparation for the work stage for forming the welded edge portion.

FIG. 14 shows a schematic diagram of a further alternative embodiment of the tool 31. In this embodiment, the machining tool 37 is formed as a printing and / or engraving tool. The orientation of the longitudinal axis 40 of the tool 39 is again oriented perpendicular to the flange 62 of the workpiece 10. Independent control of the upper tool 11 and the lower tool 9 allows the surface of the flange 62 to be provided with markings, prints or similar.

FIG. 15 shows an alternative embodiment of the tool 31 of FIG. In this embodiment, it is intended that the longitudinal axis 40 of the tool body 39 is tilted more strongly with respect to the position axis 35. For example, this inclination includes 90 ° with respect to the position axis 35. In such an embodiment, it is realized that the front surface of the workpiece 10 or the workpiece part 81 is stamped and / or printed and / or machined.

FIG. 16 shows a perspective view of the alternative tool 31 of FIG. In this embodiment, it is intended that the machining tool 37 is formed as an embossing tool. For example, an embossing member 270 is provided on the front surface of the tool body 39. This can be, for example, letters, numbers, symbols or the like. In order to provide this embossing, the stamp surface 43 of the tool body 39 is preferably oriented on the surface of the flange 62 or parallel to the inclination of the support surface 61.

FIG. 17 shows an alternative embodiment of the tool 31 of FIG. The machining tool 37 is formed as a deforming tool. For example, the stamped surface 43 of the inclined tool body 39 is provided with a deforming member 271 that can provide a deforming contour to the flange 62 of the workpiece 10. In the support surface 61, a counter-deformation member 272 corresponding to the deformation member in the way of extending the contour is shown. For example, the machining tool 37 forms a cup-shaped recess in the flange 62. This is because the deforming member 271 is formed as a conical trapezoidal ridge, and the counterforming element 272 is formed complementary thereto. Alternatively, flutes, V-grooves or other contours may be provided on the flange 62. Instead of causing deformation of the flange, it may be contemplated to provide the flange 62 with a punched stamp that provides an opening or recess. This recess can again be diverse in contour and contains various shapes. A punched bending member may be provided instead of the deforming member 271 in order to provide the flange 62 with, for example, gills. The form of the machining and / or cutting tool disposed on the stamp surface 43 of the tool body 39 or the individually tilted tool body 39 can vary.

FIG. 18 shows a perspective view of an alternative embodiment of the tool 31 of FIG. Similarly, in this tool 31, a tool body 39 inclined along the longitudinal axis 40 with respect to the position axis 48 is provided. The machining tool 37 is formed as a folding tool. Here, the tool body 39 comprises a stamped surface 43 having a curved or rounded contour, or radius of curvature, to form a bent edge 274 at its front end.

The lower tool 9 also includes a substrate 41 having a countertop 47 surrounding the opening 46. An opening 46 is defined and a counter-bending edge 275 is formed on the lower tool 9. The counter-bending edge 275 is preferably as long as or longer than the bending edge 274 of the upper tool 11. Depending on the contour, thickness, and / or extension of the counter-bending edge 275, the flange 62 is swiveled and deformed from its surface with respect to the workpiece 10. In the embodiment, the counter-bending edge portion 275 is formed as a thin arcuate disk. Thereby, the flange 62 can be bent toward the work surface of the work 10 at an angle of 90 ° or more. This will be described in detail below with reference to FIGS. 19-22.

FIG. 19 shows a schematic cross-sectional view of the tool 31 of FIG. 18 at the first working position. The work piece 10 sits on the table surface 47 on the lower tool 9. A U-shaped cut-out connecting fitting to be transformed into the flange 62 is above the opening 46 of the lower tool 9. In the first work stage, the upper tool 11 is moved toward the lower tool 9 along the stroke shaft 14 or the position shaft 35 until the bent edge portion 274 abuts on the workpiece 10. At that time, the bent edge portion 274 is displaced inward with respect to the opposing bent edge portion 275 in the direction of the opening 46. As shown in FIG. 20, further stroke movement of the upper tool 11 into the opening 46 of the lower tool 9 causes the first deformation of the flange 62.

As shown in FIG. 21, the increasing stroke motion of the upper tool 11 with respect to the lower tool 9 causes the flange 62 to be deformed by 90 °. Now, at a further working stage, the angle between the workpiece 10 and the flange 62 is 90 ° because the flange 62 is further bent as soon as the upper tool 11 moves along the upper positioning shaft 16 in the direction of the counter-bending edge 275. Can be formed smaller.

The bending radius between the workpiece 10 and the flange 62 is determined according to the distance between the bending edge portion 274 and the counter-bending edge portion 275. The narrower the interval, the smaller the radius of curvature.

23 shows a further alternative embodiment of the workpiece 31 of FIG. In this embodiment, the tool 31 of FIG. 23 is introduced, starting from the flange 62 manufactured as shown in FIGS. 6 and 7, where the machining tool 37 is formed as a deforming tool at the corner of the workpiece 10. It is planned. The tool body 39 is provided with a bent edge portion 274 at its front end again. The embodiment of the upper tool 11 may correspond to the embodiment of FIG.

The lower tool 9 includes a support surface 61 and a punched surface 56 which are arranged high with respect to the base surface 47 and oriented at an angle. A counter-bending edge portion 275 is provided between the support surface 61 and the punched surface 56. Since the first flange 62 is bent again by the tilted stroke motion linearly with respect to the position axis 35, in particular along the tilted longitudinal axis 40 of the upper tool 11, the first flange 62 is subsequently bent, preferably in the direction opposite to the flange 62. A second flange 65 oriented in is formed. After a linear stroke movement of the upper tool 11 to the lower tool 9 along the longitudinal axis 40 or parallel to the punched surface 56, the upper tool 11 can be lifted.

Claims (13)

It has an upper tool (11) and a lower tool (9) that are movable relative to each other for machining the workpiece (10) placed between them.
The upper tool (11) has a clamp shaft (34) and a substrate (33) having a position axis (35) as a common central axis .
Includes a machining tool (37) facing the clamp shaft (34) and disposed on the substrate (33).
The lower tool (9) has a substrate (47) for the workpiece (10) and a substrate (41) including an opening (46) in the pedestal (47).
A tool having a longitudinal axis (40) that is tilted with respect to the position axis (35) of the upper tool (11) in which the machining tool (37) acting on the workpiece (10) receives the machining tool (37). Equipped with a body (39)
The machining tool (37) is a cutting tool, and at least one cutting edge portion (38) is provided at one end of the tool body (39), and the cutting edge portion (38) is formed by an inclined punching stroke. A tool for machining a plate-shaped workpiece (10), characterized in that when the workpiece (10) is cut, an inclined partial edge portion is generated on the workpiece (10). It has an upper tool (11) and a lower tool (9) that are movable relative to each other for machining the workpiece (10) placed between them.
The upper tool (11) has a clamp shaft (34) and a substrate (33) having a position axis (35) as a common central axis.
Includes a machining tool (37) facing the clamp shaft (34) and disposed on the substrate (33).
The lower tool (9) has a substrate (47) for the workpiece (10) and a substrate (41) including an opening (46) in the pedestal (47).
The machining tool (37) acting on the workpiece (10) has a longitudinal axis (40) that is tilted with respect to the position axis (35) of the upper tool (11) that receives the machining tool (37). Equipped with a tool body (39)
The machining tool (37) is a printing and / or engraving tool .
The machining tool (37) is provided with an embossing tool having an embossing member (270) , or is formed on a stamp surface (43) and a stamp surface (43) formed at one end of the tool body (39) . A deforming tool having a provided deforming member (271), which is a tool for machining a plate-shaped workpiece (10), which is characterized in that machining is performed by an inclined stroke . The tool according to claim 1 or 2 , wherein the machining tool (37) is tilted in an angle region up to 90 ° with respect to the position axis (35). The stamped surface (43) provided with at least one cutting edge (38) is oriented at right angles to the longitudinal axis (40) of the tool body (39) and the opening (46) in the lower tool (9). ). The tool according to claim 1 , wherein a counter-cutting edge portion (51) positioned therein is provided. The counter-cutting edge (51) is placed higher in the substrate (41), in the pedestal (47) of the lower tool (9), or in the direction of the upper tool (11) with respect to the pedestal (47). The tool according to claim 4, wherein the tool is to be used. The support surface (61) defined in the counter-cutting edge portion (51) is inclined with respect to the base surface (47) on the substrate (41) of the lower tool (9), and the upper tool (9) is opposed to the support surface (47). 11) The tool according to claim 4, wherein the tool protrudes in the direction of 11). 4. The fourth aspect of the present invention is characterized in that a punching surface (56) defined in the counter-cutting edge portion (51) and inclined or oriented in parallel with the longitudinal axis (40) of the tool body (39) is provided. The tools listed in. The tool according to claim 7 , wherein counter-molds are provided at intervals on the punched surface (56). The tool according to claim 6, wherein the support surface (61) is adapted to an angle of a flange (62) on the workpiece (10) to be machined. The stroke drive device (13) can move along the stroke axis (14) in the direction toward the workpiece (10) to be machined by the upper tool (11) and in the opposite direction, and the stroke axis (14). It has the upper tool (11) that can be positioned along the upper positioning axis (16) extending perpendicularly to and can be moved along the upper positioning axis (16) by the drive device (17). It is oriented toward the upper tool (11) and can move in the direction of the upper tool (11) by the stroke drive device (27) along the lower stroke axis (30), and the stroke axis (11) of the upper tool (11). It is oriented vertically to 14) and can be moved along the lower positioning shaft (25) parallel to the upper positioning shaft (16) by the drive device (26) , and can be positioned along the lower positioning shaft (25). The upper part has a lower tool (9), whereby the drive unit (17, 26) has a control (15) that can be controlled for the movement of the upper part and the lower tool (11, 9). The movement of the tool (11) along the upper positioning axis (16) and the movement of the lower tool (9) along the lower positioning axis (25) can be controlled independently of each other, and the upper tool can be controlled. The machining of the workpiece according to claim 1 or 2 , wherein either or both of (11) and the lower tool (9) can be controlled by a stroke motion outside the stroke axis (14, 30). A tool machine for machining plate-shaped workpieces, which is characterized by being provided with the tools of. The stroke drive device (13) can move along the stroke axis (14) in the direction of the workpiece (10) to be machined by the upper tool (11) and in the opposite direction, said stroke axis (14). The upper tool (11), which can be positioned along the upper positioning shaft (16) extending perpendicularly to the above, is moved along the upper positioning shaft (16) by the drive device (17), and the upper tool (16) is moved. The lower tool (9), which is oriented with respect to 11) and can be positioned along the lower positioning axis (25) oriented perpendicular to the stroke axis (14) of the upper tool (11), is a drive device (26). ) Moves along the lower positioning axis (25), and control (15) controls the drive (17, 26) for the movement of the upper and lower tools (11, 9), claim 1. Or the tool (31) according to 2 is introduced for machining the workpiece (10), in which case either or both of the upper tool (11) and the lower tool (9) are the stroke shaft ( A method for machining a plate-like workpiece, characterized in that it is controlled by a stroke motion outside 14, 30). 11. A characteristic of claim 11 , wherein a linear stroke motion inclined with respect to the stroke axis (14, 30) or a curved or arcuate stroke motion with respect to the stroke axis (14, 30) is controlled. The method described in. The lower portion of the upper tool (11) is statically positioned along the stroke axis (14) on the lower tool (9) and subsequently along the upper positioning shaft (16) by a stroke motion . 11. The method of claim 11 , characterized in that it is moved towards the tool (9).

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