JP2010284719A - Punching device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a punching device capable of operating a punching tool without using hydraulic structure members by making improvements on a punching device 1 having at least one first motion element 2 and arranging the first motion element 2 inside a hollow body 4. <P>SOLUTION: The punching device 1 comprises: a first motion element 2 where a secondary portion 6 of a solenoid motor is positioned; the hollow body 4 having a primary portion 8 of the solenoid motor, which has at least one coil for generating a magnetic field, thereby bringing the primary portion to work in cooperation with the secondary portion 6 of the solenoid motor to cause a linear-like relative motion; and at least one reception region 12 for receiving at least one punching tool. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a punching device, and more particularly to an electric punching device.

  Many such punching devices are known from the prior art. In this case, the punching device generally has a punching head and an element on which the punching head is arranged, and this element is used for applying a force. The punching head has a different size and is configured according to the field of use, that is, depending on the type of material, the thickness of the material, the frequency of use or the speed of use. The punching device known from the prior art generally has a hydraulic system. Such a hydraulic punching device further requires hydraulic oil, tubes, hydraulic pumps, valves, guides (bearings) and other elements. However, such punching devices must be inspected at regular intervals to account for hydraulic oil degradation, dirt, leaks and other factors that require timely and economically expensive costs. This is because it would otherwise result in functional loss and environmental pollution.

German Patent Publication No. 19846711 Canadian Patent No. 810778

  An object of the present invention is to provide a punching device that can drive a punching tool without using a hydraulic component.

  This problem has been solved according to the invention by a punching device according to claim 1. Advantageous embodiments and variant embodiments are described in the dependent claims.

  The concept of the solenoid motor used in the present invention is known, for example, from DE 198 46 711 A1 or Canadian Patent No. 810778. In the present invention, the same principle as that disclosed in the above patent document is used. In this known principle, a magnetic field is generated by the coil, which is further used to slide the member (the coil is placed around the member) in at least one direction without friction. It is done.

  The punching device for punching solids according to the invention has at least one first movement element, which is arranged in the hollow body. According to the present invention, a secondary part of a solenoid motor is disposed on the first motion element, the hollow body has a primary part of the solenoid motor, and the primary part generates a magnetic field. At least one coil for the primary part to cooperate with the secondary part of the solenoid motor to produce a linear relative movement; The punching device has at least one receiving area for receiving at least one punching tool.

  Instead of arranging four planar linear motors in a rectangular shape, it is advantageous to provide only one solenoid drive. This requires less space and is easy to assemble. That is, no complicated configuration is required to assemble the secondary part. Thus, it can be implemented more simply and directly in connection with the inclined assembly of the punch. Moreover, the load applied to the joint portion of the secondary part is small. That is, instead of a lateral force (linear motor), the joint is exposed to a tensile load or a compressive load. These individual advantages, especially the combination of these advantages, reduce development, manufacturing and customer service costs.

  In an advantageous manner, at least one region of the punching device used for receiving at least one punching tool is provided in the movable region of the punching device. Thereby, the punching tool can be easily attached. This is because the movable region of the punching device can be moved in the longitudinal direction and preferably also in the radial direction.

  According to another advantageous embodiment, in the region used for receiving at least one punching tool, in a reibschluessig equation or in a formschluessig equation or in a magnetic field The punching tool can be mounted in a coupling (feldschluessig) equation or by a combination of these coupling types. Furthermore, the punching tool cannot be released. In other words, the punching tool is coupled to the receiving area of the punching device by means of material coupling (Stoffschuss). This provides an arrangement in which the punching tool is releasable or inseparable from the punching device. An irreversible coupling between the punching tool and the receiving area of the punching device is considered, for example, if the tool service life considered corresponds to the service life of the entire punching device or the service life of the part of the punching device. It is done. Such releasable coupling allows the worn punch tool to be replaced, or another type of punch head (ie, different size, different configuration, different material properties and other factors). Can be arranged.

  According to another advantageous embodiment, said movement element is linearly movable in at least one direction. In this case, the movement element itself can be configured as a punching tool. The secondary part is at least partly surrounded by at least one coil so that the secondary part of the solenoid motor is linearly movable. In this case, the secondary part is configured as a permanent magnet. Movement in at least one direction is performed by the controller with a substantially linear or non-linear acceleration characteristic curve. The movement element may be supported in a floating manner in the use position. The floating bearing is obtained by a magnetic field formed between the primary part and the secondary part. If as accurate a guide as possible of the moving element is required, a rolling bearing or a sliding bearing for guiding the moving element may be used in the punching device according to the invention. Furthermore, the punching process can be carried out in each longitudinal movement of the movement element. That is, a punching tool can be arranged at the second end of the movement element.

  According to another advantageous embodiment of the invention, the movement element is rotatable in the circumferential direction about a predetermined axis. As a result, the electric punching head arranged on the movement element is rotated together. The movement in the longitudinal direction and the rotational movement about the longitudinal axis of the movement element can be carried out in an advantageous manner independently of one another.

  According to another advantageous embodiment, the movement element is held by the holding device in a non-use state. In this position, the movement element does not perform a sliding movement at least in the longitudinal direction of the movement element. The rotation or pivoting of the movement element is carried out in this position in order to simplify assembly and tool change or for maintenance work. Furthermore, the movement element is firmly defined in the holding device so that it cannot move in any direction. This is because during assembly, tool change or maintenance inspection or maintenance, if a strong force is applied to the moving element and the moving element is brought into contact with the primary part to such an extent that one of these two parts is damaged, is important. In this case, the holding device can be configured as an electromagnetic type, a shape coupling type, a friction coupling type, or a combination of these coupling types.

  According to another advantageous embodiment, the movement element or its longitudinal direction is arranged substantially vertically. This means that the movement element is inclined at an angle of 80 ° to 100 °, exactly 85 ° to 95 °, preferably about 90 ° with respect to the horizontal position. It is. This makes use of gravity in an advantageous manner during the punching process, whereby the movement element is accelerated not only by the solenoid motor drive but also by gravity. However, the motion elements may be arranged horizontally or inclined, or the motion elements may be variably aligned.

  In an advantageous manner, a drive device is provided for producing a rotational movement of the movement element. This drive device is preferably a torque motor. When a torque motor is used, the number of magnets can be changed according to the motor changing embodiment, arrangement, and field of use.

  According to another advantageous embodiment, the drive device is arranged in or near the primary part. In this case, driving is performed by rotating, for example, a holding brake in an electric, electromagnet, hydraulic or mechanical manner. Furthermore, the drive part and the primary part are substantially immobile.

  According to an advantageous embodiment, the primary part is rotatably movable by the drive device. In this case, the head is rotated up to 360 ° in the first rotation. According to embodiments of the present invention, the head is movable in a plurality of rotational movements that can be performed in any rotational direction, depending on use.

  According to another advantageous embodiment of the invention, a connection is provided, so that the primary part and the secondary part can also obtain the rotational displacement of the secondary part from the rotational displacement of the primary part. Connected. That is, especially the primary part and the secondary part are connected so that relative rotation is impossible. The connection between the secondary part and the primary part is releasable. That is, it can be configured by magnetic field coupling, shape coupling, friction coupling, or a combination of these coupling types. Synchronous or asynchronous displacement of the primary part and the secondary part takes place in the same direction about a common axis of rotation. In this case, the rotation direction is a clockwise direction or a counterclockwise direction. This is advantageous because the initial impact, that is, the initial impact with which the rotational motion of one is started and thereby the rotational motion of the other, is assisted by the magnetic field and thus without friction. .

  According to another advantageous embodiment of the invention, the primary part of the solenoid motor is arranged stationary or stationary. This advantageously places the torque motor in the primary part and thus provides a compact structure.

  According to another embodiment of the invention, the rotational movement of the movement element is terminated before the punching operation. For this purpose, the secondary part is combined with a torque motor, and the secondary part is used as a tool support. This allows the tool to enter the workpiece only when a pure linear movement of the movement element is performed. In order to assist in the rotational movement, the punching device has a cylindrical punch and / or an axis of rotation incorporating the punch in an advantageous manner.

  Further, the punch may be configured to be oval, rectangular or arcuate and arcuate or at an angle of 90 ° or less or 90 ° or more. In this case, the punch is a movement element. The motion element can further be composed of a plurality of components. These components have different geometric configurations and material properties. Furthermore, the rotary movement of the primary part with the connected secondary parts or the rotary movement of the secondary part alone is carried out during the linear sliding movement.

  According to an advantageous embodiment, a control unit is provided, which serves so that the rotational and translational movement of the movement elements can be controlled separately or in relation to one another. This type of control provides an effective punching process. This means that the supply of the workpiece to be processed is taken into account so that the punching tool can be lifted and lowered without slipping during the production process. In embodiments where the rotation of the primary part or the secondary part takes place, the control unit optimizes the co-operation of the process so that the movement element hardly moves during use. This means that the movement element always performs forward and backward movement alternately during use and does not stay in one position. Since such a process is ideal, the movement process of the movement element also occurs during a state in which the movement element is partially stationary.

  Another advantage of the present invention is that the drive is performed without friction, so wear on the apparatus with friction is minimal and the service cycle is extended. Moreover, according to the present invention, noise pollution is significantly less compared to prior art solutions. Therefore, since the load on the worker is small, another series of positive effects can be obtained.

  According to another advantageous embodiment of the invention, the punching device has a sensor connected to the control unit. Via this sensor, the position of the workpiece and the alignment of the workpiece are also detected. The position of the punching head can be defined via other sensors. Furthermore, a sensor for defining force, spacing, temperature, noise level, moment, speed, acceleration, wear of the punch head or wear of a component arranged in the vicinity of the punch head is also conceivable.

  According to another advantageous embodiment of the invention, the coil is at least partly made of copper, the movement element is made of a magnetic material, preferably magnetic iron, and the other basic components of the punching device are: , Made of tool steel.

1 is a schematic view of a punching device according to a first embodiment of the present invention having a rotatable primary part of a solenoid motor. FIG. FIG. 6 is a schematic view of a punching device according to a second embodiment of the present invention having a rotatable primary part of a solenoid motor.

  FIG. 1 shows a punching device 1 according to the invention. This punching device 1 has a movement element 2, on which a secondary part 6 of a solenoid motor, generally indicated by 5, is arranged. The secondary part 6 surrounds the movement element 2 at least partly in the circumferential direction and at least partly in the longitudinal direction L. The movement element 2 is provided with at least one region 12 for receiving at least one punching tool. The punching tool is configured integrally with the motion element 2 or is releasably disposed on the motion element 2. The movement element 2 is arranged in the hollow body 4 together with the secondary part 6 arranged on the movement element 2. The hollow body 4 is supported so as to be rotatable about the axis X. The drive element 14 is firmly arranged in the hollow body 4. The drive element 14 is covered in the longitudinal direction of the movement element 2 by an element 15 arranged at least partly in another stationary position.

  The primary part 8 has at least one coil for generating a magnetic field. This magnetic field provides a non-contact working connection between the secondary part 6 and the primary part 8. The magnetic field is controlled such that a linear sliding movement of the movement element 2 takes place in either the arrow direction 18 or 20. In FIG. 1, the gravitational acceleration is represented by an arrow 18 indicated by “g”. Therefore, the movement of the movement element 2 in the direction of the arrow 18 is assisted by gravity in this embodiment, thereby increasing the force acting on the workpiece to be machined. An advantage of such a configuration is that the punching tool can be driven into the pipe body with less energy consumption by using gravity during the punching operation.

  In order to rotate the punching tool, the rotational movement of the movement element 2 and the rotation of the hollow body 4 are performed so that the movement element 2 does not perform relative movement with respect to the hollow body 4 about the common rotation axis when the hollow body 4 rotates. The movement is linked. Therefore, the movement of the connected movement element 2 and the hollow body 4 is performed synchronously. The possibility for such a connection is based on the drive element 14 and the stationary element 15, which is an element of a torque motor. The drive element 14 is a rotor, and this rotor is operatively connected in a contactless manner with a stationary element 15 that is a stator.

  FIG. 2 shows a variant embodiment of the punching device 1 according to the invention. A secondary part 6 of the solenoid motor is arranged on the movement element 2. The drive element 14 is also arranged in the motion element 2 or in the vicinity of the motion element 2. The drive element 14 and the secondary portion 6 are integrally configured as an element. The movement element 2 is also arranged in the hollow body 4. The hollow body 4 is stationary. Furthermore, a stationary element (stator) 15 is arranged in the hollow body 4 or in the vicinity of the hollow body 4. The hollow body 4 does not perform relative movement with respect to the other frame of the punching device or the hollow body 4.

  The drive element 14 and the stationary element 15 have a contactless working connection. The primary part 8 also has a non-contact working connection with the secondary part 6.

  The region of the tool receiving portion has a configuration corresponding to the configuration described in FIG. That is, the movement element 2 is provided with at least one region 12 which is used to receive at least one punching tool. The punching tool is configured integrally with the movement element 2 or is releasably arranged on the movement element 2.

  DESCRIPTION OF SYMBOLS 1 Punching device, 2 Motion element, 4 Hollow body, 5 Solenoid motor, 6 Secondary part, 8 Primary part, 12 Receiving area, 14 Drive element (rotor), 15 Stationary element (stator), 16 Torque motor, 18th 1 movement direction, 20 second movement direction

Claims (15)

A punching device (1) for punching a solid, comprising at least one first motion element (2), said first motion element (2) being arranged in a hollow body (4) In the form of
A secondary part (6) of a solenoid motor is arranged on the first motion element (2), and the hollow body (4) has a primary part (8) of the solenoid motor, and the primary part (8) has at least one coil for generating a magnetic field, whereby the primary part (8) has the secondary part of the solenoid motor (in order to produce a linear relative movement ( 6) A punching device, wherein the punching device (1) has at least one receiving area (12) for receiving at least one punching tool. Device (1).   The punching device (1) according to claim 1, wherein the receiving area (12) is provided in a movable region of the punching device (1).   The punching device (1) according to claim 1 or 2, wherein a punching tool is releasably attachable to the receiving area (12).   4. Punching device (1) according to any one of claims 1 to 3, wherein the movement element (2) is linearly movable in at least one direction.   The punching device (1) according to any one of claims 1 to 4, wherein the movement element (2) is rotatable about a predetermined axis.   6. The punching device (1) according to any one of claims 1 to 5, wherein the movement element (2) is held by a holding device in a non-use state.   The punching device (1) according to any one of the preceding claims, wherein the movement elements (2) are aligned vertically.   8. A punching device (1) according to any one of the preceding claims, wherein a drive device (16) is provided for producing a rotational movement of the movement element.   9. Punching device (1) according to claim 8, wherein the drive device (16) is arranged at or in the vicinity of the primary part (8).   10. Punching device (1) according to claim 8 or 9, wherein the primary part (8) is rotatable by the drive device (16).   Connecting means for connecting the primary part (8) and the secondary part (2) so that the secondary part (2) is also rotationally displaced when the primary part (8) is rotationally displaced. 11. The punching device (1) according to any one of claims 1 to 10, which is provided.   Punching device (1) according to any one of the preceding claims, wherein the primary part (8) is arranged stationary.   13. The punching device (1) according to any one of claims 1 to 12, wherein the rotational movement of the movement element (2) is terminated before the punching operation.   14. Punching device (1) according to any one of claims 8 to 13, wherein a control unit is provided for controlling the rotational movement and the longitudinal movement of the movement element (2) in association with each other.   15. The punching device (1) according to any one of claims 1 to 6, 8 to 14, wherein the movement elements are arranged in an inclined manner or the movement elements are variably aligned.

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