Drilling device for profiled sealing strip, application head, system for applying profiled sealing strip to door or body of motor vehicle, and method for producing drill hole

Abstract

The invention relates to a drilling device for a profiled sealing strip, an application head, a system for applying a profiled sealing strip to a door or a body of a motor vehicle, and a method for producing a drill hole. The aim of the invention is to provide a drilling device for profiled sealing strips, a method for producing a drill hole, an application head of a profiled sealing element application device, and a system for applying profiled sealing strips, each having a drilling device according to the invention as a subassembly, the drilling device enables the production of drill holes into the shaped sealing strip directly, on demand, and without significant delay during application. The drilling device for the profiled sealing strip is characterized in that a drilling unit and at least one guide device are provided, the profiled sealing strip can be guided through the guide device along the longitudinal extension, and the guide device and the profiled sealing strip can rotate relative to the drilling unit around the longitudinal axis of the longitudinal extension of the profiled sealing strip. And the guide device is provided with a rotation angle positioning device.

Description

Technical Field

[0001] The invention relates to a drilling device for a profiled sealing strip and a method for producing a hole. The invention also relates to an application head for a profiled sealing application device having a drilling device according to the invention and a system for applying a profiled sealing strip comprising a drilling device. Background Art

[0002] Drilling stations for forming seals are already known, wherein the seal is already arranged on the corresponding component for this purpose and the component with the seal must therefore undergo additional process steps. In this case, either the borehole is produced in the seal on a fixed component by moving the drilling station, or the component with the seal is guided to a fixed drilling station for each borehole to be produced and the corresponding borehole is produced there.

[0003] Alternatively, the opening can also be produced by punching, wherein the opening is produced by punching in a separate device on the profiled sealing strip and the profiled sealing strip is only subsequently applied. In this case, a plurality of handling steps are performed.

[0004] Furthermore, DE 10 2016 114 461 A1 discloses a method for producing an exhaust opening in a molded seal, wherein the exhaust opening is introduced into the molded seal by means of a laser beam.

[0005] All solutions have in common that they can be realized independently of the application process of the corresponding profiled sealing strip, require additional handling steps and also require additional process time. Summary of the invention

[0006] The object of the present invention is to realize a drilling device for a profiled sealing strip, a method for producing holes, an application head for a profiled sealing application device, and a system for applying a profiled sealing strip, each of which has a drilling device according to the invention as a subcomponent, which enables the production of drill holes in the profiled sealing strip directly, as required and without significant delays during the application process.

[0007] The invention is realized in the proposed application, namely a drilling device for a profiled sealing strip, wherein a drilling unit and at least one guide device are provided, by which the profiled sealing strip can be guided in the longitudinal extension, wherein the guide device together with the profiled sealing strip guided therein or thereby is rotatable relative to the drilling unit about the longitudinal axis of the longitudinal extension of the profiled sealing strip, and the guide device has a rotation angle positioning device. In this way, it is possible to drill holes directly in the profiled sealing strip at different positions, because for this purpose the profiled sealing strip itself is rotatable in the guide device by the rotation angle positioning device. In this way, both drilling without rotation and drilling with rotation are also conceivable. In addition, rotation of the profiled sealing strip in the longitudinal direction about the longitudinal axis is possible both to the right and to the left as required. In this way, a wide area of ​​the profiled sealing strip is achieved.

[0008] By virtue of the fact that the profiled sealing strip can be guided in the longitudinal extension by the guide device, the profiled sealing strip can first be freely conveyed or moved in its longitudinal extension, for example for application. If drilling is required, the conveying or movement of the profiled sealing strip in the longitudinal extension or longitudinal direction can be stopped and the profiled sealing strip can be stationary and thus not moved in the longitudinal extension or longitudinal direction. Drilling can now be carried out accordingly without rotation about the longitudinal axis or with rotation about the longitudinal axis by means of the rotational angle positioning device. Subsequently, the profiled sealing strip is brought back into the position for the movement or conveying of the profiled sealing strip for application by means of the rotational angle positioning device.

[0009] A further aspect of the invention relates to an application head of a profile seal application device, wherein the application head has a drilling device according to the invention.

[0010] A third aspect of the invention relates to a system for applying a profiled sealing strip to a door or a body of a motor vehicle, the system having a drilling device according to the invention and a profiled sealing application device with an application head for applying the profiled sealing strip to a door or a body.

[0011] A fourth aspect of the present invention relates to a method for producing holes in a profiled sealing strip using a drilling device according to the present invention, wherein the profiled sealing strip, which moves or does not move in the direction of its longitudinal extension, is rotated as required from an initial position around a longitudinal axis extending in the longitudinal direction between 0 degrees and 75 degrees to a drilling position, and then a drilling unit produces a hole in the profiled sealing strip in the drilling position, and then the profiled sealing strip is rotated back from the drilling position to the initial position or brought to the initial position as required, wherein the initial position and the drilling position are the same when the profiled sealing strip is rotated by 0 degrees or approximately 0 degrees around the longitudinal axis extending in the longitudinal direction.

[0012] If required, the profiled sealing strip can be rotated from the starting position about the longitudinally extending longitudinal axis between 76 degrees and 100 degrees into the drilling position as required.

[0013] Advantageous embodiments of the various aspects of the invention are indicated in the dependent claims.

[0014] By virtue of the guide device comprising at least one guide unit, the profiled sealing strip can be guided more reliably and without stress and at least with little deformation by the guide device. If two or more guide units are used, the guide units are arranged spaced apart from one another so that the profiled sealing strip can be guided reliably and without stress and at least with little deformation between the respective guide units.

[0015] By arranging the rotational angle positioning device in the region of at least one guide unit or, in the case of two or more guide units, between two of the guide units or outside or beside the guide units, the profiled sealing strip can be rotated to the corresponding rotational angle position more reliably and without stress and at least with little deformation. The construction is also simplified.

[0016] By virtue of the fact that the rotational angle positioning device has a guide unit, the construction is simplified and, moreover, the profile sealing strip can be rotated into the respective rotational angle position more reliably and without stress and at least with little deformation.

[0017] By virtue of the guide unit having a roller guide, a profile guide or a bearing guide, the profiled sealing strip can be rotated into the corresponding rotational angle position more reliably and without stress and at least with little deformation.

[0018] It is likewise provided that at least two of the guide elements, such as roller guides, profile guides and / or bearing guides, can also be combined with one another.

[0019] By virtue of the fact that the rotational angle positioning device has a friction wheel or a displacement crankshaft or a worm gear or a gear transmission, a flexible and rapid rotational angle adjustment can be facilitated.

[0020] By making the rotation angle positioning device drivable by means of a worm drive as a linear drive or as a worm drive with a worm and a worm wheel, for example a spur gear, or by means of a servomotor, a reliable and flexible rotation angle setting can be facilitated. In addition, the play in the rotation angle positioning can be minimized by means of a worm drive or a worm wheel drive and a good repeatability can be achieved. Servomotors are reliable and contain a holding brake or a high holding torque for position assurance. It is also conceivable that the rotation angle positioning device can be driven flexibly and quickly by means of a pneumatic cylinder or a stepper motor. Combinations of at least two of the drives are also conceivable.

[0021] By arranging the drilling unit in the area of ​​the guide device or in the area of ​​at least one guide unit or, in the case of two or more guide units, between two of the guide units or in the area of ​​the rotational angle positioning device, the drilled hole can be produced more reliably and more accurately, since the profiled sealing strip can be rotated in this area more reliably and without stress and at least with little deformation into the corresponding rotational angle position and the drilled hole can thus be produced at the desired position and at the desired angle.

[0022] Likewise, the drilling unit can be arranged in the region of the guide device between one of the guide units and the rotational angle positioning device.

[0023] By arranging the drilling unit with a main working direction transversely or perpendicularly to the longitudinal extension of the profiled sealing strip, the drilled holes can be produced more easily and more accurately at the desired position and at the desired angle.

[0024] By virtue of the drilling unit having a pneumatic or electrical or electromechanical linear drive as tool feeder, the drilled holes can be produced quickly, precisely and in a controlled manner.

[0025] By providing a suction device or a blower or a collecting trough, chips or other residues when drilling into the profiled sealing strip can be reliably collected and removed. Disruptive residues and dirt in the area of ​​the device can be avoided.

[0026] By arranging the drilling device in the application head in the region of the feed of the profiled sealing strip and / or before or after the length measurement of the profiled sealing strip, a space-saving design of the application head is achieved. Furthermore, the profiled sealing strip can be rotated reliably and without stress in this region and without or only slightly influencing the application process into the corresponding rotation angle position.

[0027] By providing in a system for applying a profiled sealing strip to a door or a body of a motor vehicle that a drilling device is arranged in the area of ​​a supply of the profiled sealing strip to the profiled sealing application device and / or before or after a length measuring section of the profiled sealing strip, an optimized construction and a reliable and stress-free rotational angle positioning of the profiled sealing strip are facilitated.

[0028] By making the drilling device in the application head and / or in the system for applying the profiled sealing strip displaceable or movable in the conveying direction parallel to the supply of the profiled sealing strip, the drill holes can be produced simultaneously during the application process. Thus, the application process of the profiled sealing strip can be run with only minimal delay.

[0029] The drilling device according to the invention, or the application head according to the invention for a profiled sealing application device with the drilling device, or the system according to the invention for applying a profiled sealing strip comprising the drilling device according to the invention and the profiled sealing application device with the application head according to the invention for applying a profiled sealing strip, or the method according to the invention for producing holes drilled into a profiled sealing strip using the drilling device according to the invention can each be used or implemented on an apparatus for stationary and / or mobile application, for example on a robot having at least one arm segment arranged on the robot, or on other manipulators. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Several embodiments of the present invention are shown in the drawings and are further described below. The drawings show:

[0031] Figure 1 A detailed view showing the drilling device;

[0032] Figure 2 As a detail view, a drilling device on the application head is shown;

[0033] Figure 3 An applicator head with a drilling device is shown;

[0034] Figure 4a and 4b Detailed views showing the drilling unit in different viewing angles;

[0035] Figures 5a to 5c Detailed views showing the drilling device and the rotation angle positioning device in different viewing angles; and

[0036] Figure 6 and 7 Detailed views of the rotational angle positioning device of the guide device are shown in different views. DETAILED DESCRIPTION

[0037] The drilling device 7 according to the invention for the profiled sealing strip 1 (not shown) is Figure 1 . A drilling unit 2 and at least one guide device 3 are provided. The profiled sealing strip 1 can be guided in the longitudinal extension by the guide device 3. The guide device 3 together with the profiled sealing strip 1 is rotatable relative to the drilling unit 2 about the longitudinal axis of the longitudinal extension of the profiled sealing strip 1. The guide device 3 accordingly has a rotation angle positioning device 4, by means of which the guided profiled sealing strip can be rotated according to the requirements of the position of the drill hole to be produced.

[0038] The guide device 3 comprises at least one guide unit 5. In the case of two or more guide units 5, the guide units 5 are arranged at intervals from each other, for example, on both sides of the rotation angle positioning device 4 along the conveying direction 14 of the profiled sealing strip 1. Accordingly, the rotation angle positioning device 4 - for example, Figure 2 , 3 7 - in the area between at least two guide units in the guide unit 5. The at least one guide unit 5 or each guide unit 5 can also be arranged distributed in other ways along the conveying direction 14 of the profiled sealing strip 1, so that the rotation angle positioning device 4 is arranged outside or beside the guide unit 5.

[0039] If necessary, the rotational angle positioning device 4 can have a guide unit 5 .

[0040] As in Figure 1 , 2 , 5a to 5c and 7, the guide unit 5 has a roller guide. The roller guide is also designed as a profile guide with a roller guide arranged at 45 degrees - as in Figure 1 , 2 and 5a - or implemented as a support guide, as in Figure 1 , 5a and 7 are shown.

[0041] The rotation angle positioning device 4 is drivable by means of a worm drive having a worm 8 driven by means of a servomotor and a worm wheel 9 driven by the worm 8. Alternatively, a stepper motor or a servomotor can also be used directly. Likewise, the drive can also be formed by a combination of different drives.

[0042] Furthermore, the drilling unit 2 is arranged in the region of the guide device 3 between the two guide units 5 and in the region between one of the guide units 5 and the rotational angle positioning device 4. The drilling unit 2 is arranged with a main working direction perpendicular to the longitudinal extension of the profiled sealing strip 1 and has a pneumatic linear drive as a tool feeder 11. However, an electrical or electromechanical linear drive can also be provided as a tool feeder 11. Furthermore, a suction device 10 is provided.

[0043] according to Figure 2The drilling device 7 for a profiled sealing strip 1 (not shown) according to the invention shows a drilling unit 2 and two guide devices 3, which are arranged before and after a rotation angle positioning device 4 in the conveying direction 14 of the profiled sealing strip 1 and are connected to the rotation angle positioning device 4. The guide devices 3 each include at least one guide unit 5. The drilling unit 2 is arranged between the guide unit 5 of the guide device 3, which is arranged before the rotation angle positioning device 4 in the conveying direction 14 of the profiled sealing strip 1, and the rotation angle positioning device 4. The profiled sealing strip 1 (not shown) is guideable along its longitudinal extension by means of the guide device 3 with at least one guide unit 5. As described above, the profiled sealing strip 1 can be rotated relative to the drilling unit 2 around the longitudinal axis of the longitudinal extension of the profiled sealing strip 1 by means of or through the guide device 3 and its at least one guide unit 5, so that the drilled hole can be produced according to the position requirements.

[0044] The guide unit 5 has a roller guide disposed at an inclination of 45 degrees as a profile guide.

[0045] As described above, the rotational angle positioning device 4 is driven by means of a worm gear drive with a worm 8 and a worm wheel 9 .

[0046] The drilling unit 2 is arranged with a main working direction perpendicular to the longitudinal extension of the profiled sealing strip 1 and has a pneumatic linear drive as a tool feeder 11. In this example, a suction device 10 is also provided.

[0047] Figure 3 The application head 6 of the profile seal application device, which is known per se, is shown, but which according to the invention comprises a drilling device 7, as in Figure 1 and 2 The drilling device 7 is arranged in the region of the feed section 12 of the profiled sealing strip 1 and in front of the length measuring section 13 of the profiled sealing strip 1. The drilling unit 2 is arranged between the guide unit 5 of the guide device 3 arranged in the conveying direction 14 of the profiled sealing strip 1 in front of the rotation angle positioning device 4 and the rotation angle positioning device 4. Figure 1 and 2 Description.

[0048] Figure 4a and 4b A drilling unit 2 is shown in each case, which has an electronic drive for a drill 15 and—as described above—a pneumatic linear drive as tool feeder 11 , which is connected to the drilling device 7 .

[0049] Other drives as described above are also conceivable.

[0050] The feed rate for the tool feeder 11 is set according to the quality and sensitivity of the movement of the profiled sealing strip 1. For example, a drilling corresponding to the requirements can be realized with a feed rate v=0.075 m / s for the tool feeder 11. However, higher feed rates can also be provided.

[0051] Furthermore, a suction device 10 is provided on the drilling unit 2. The suction device 10 leads to the drill 15. For the sake of simplicity, the surrounding suction hose leading away from the suction device 10 is not shown.

[0052] Figures 5a to 5c The drilling device 7 according to the invention is shown for a profiled sealing strip 1 (not shown). The drilling unit 2 with the tool feeder 11 and the guide block 18 are arranged on a base plate 16. On or in the guide block 18 - for example Figures 5a to 5c 7 and 8 show that the rotation angle positioning device 4 is rotatably supported and a guide device 3 with one or more corresponding guide units 5 is arranged on the rotation angle positioning device 4. As described above, the rotation angle positioning device 4 can be driven by the worm wheel 9 and the worm 8.

[0053] A protective wall 17 is present and arranged in front of and covers the drill 15 together with a guide block 18. Since the device including the profile seal application device is enclosed in a unit and cannot be accessed during operation, injury protection must only be ensured when stopped. Therefore, only the drill 15 must be shielded in order to prevent injuries caused by cutting on it. Drill cuttings are removed by means of a suction device 10.

[0054] The guide block 18 is also provided with the rotation angle positioning device 4 through the mounting plate 19. Figure 6 The worm 8 is shown in a simplified manner.

[0055] Figure 7 The guide block 18 and the worm wheel 9 rotatably mounted therein of the rotary angle positioning device 4 are shown. A guide device 3 including at least one guide unit 5 is provided on both sides by means of the rotary angle positioning device 4 or the worm wheel 9. A guide unit 5 is additionally provided as a bearing guide on the guide device 3 arranged upstream of the rotary angle positioning device 4 in the conveying direction 14.

[0056] The system according to the invention for applying a profiled sealing strip to a door or a body of a motor vehicle is provided with a drilling device 7 as described above and a profiled sealing application device with an application head 6 for applying the profiled sealing strip 1 to the door or the body. The drilling device 7 is advantageously used as Figure 3 As shown in FIG. 1 , in the region of a supply 12 of the profiled sealing strip 1 to the profiled seal application device, a length measuring device 1 is arranged upstream of a length measuring device 13 of the profiled sealing strip 1 .

[0057] Advantageously, the drilling device 7 is displaceable or movable in the conveying direction 14 parallel to the feed 12 of the profiled sealing strip 1 .

[0058] The method according to the invention for producing a borehole in a profiled sealing strip 1 using a drilling device 7 provides that the profiled sealing strip 1, which is moving or not moving in the direction of longitudinal extension or conveying direction 14, is rotated as required from an initial position about a longitudinal axis extending in the longitudinal direction between 0 and 75 degrees into a drilling position. In the drilling position, a borehole is then produced in the profiled sealing strip 1 by means of the drilling unit 1. After the production of the borehole, the profiled sealing strip 1 is rotated or brought back from the drilling position to the initial position as required. In this case, the initial position and the drilling position are identical when the profiled sealing strip 1 is rotated by 0 degrees about the longitudinal axis extending in the longitudinal direction.

[0059] The profiled seal as profiled sealing strip 1 is stopped at the required position in the longitudinal direction or conveying direction 14 and then the drilling position is adjusted as the drilling angle by the rotary angle positioning device 4, by rotating the rotary angle positioning device 4. Once the desired drilling position is adjusted, the opening is drilled, by moving the drilling unit 2 as a drilling tool in the direction of the profiled sealing strip 1 onto its stop. As a next step, the drilling unit 2 is moved to its initial position and then the adjustment angle is also adjusted back to zero from the drilling position. The profiled sealing strip 1 can now continue to be conveyed in the conveying direction 14 until the next drilling position is reached and the process is repeated. The corresponding drilling position or the angle of the drilling position can be reached without collision.

[0060] Advantageously, the drilling device 7 according to the invention or the application head 6 of the profile seal application device according to the invention with the drilling device 7 can be used on a stationary or mobile application system on a robot having at least one arm section arranged on the robot or on another manipulator.

[0061] Similarly, the system according to the invention for applying a profiled sealing strip 1, comprising a drilling device 7 according to the invention and a profiled sealing application device with an application head 6 according to the invention for applying the profiled sealing strip 1, and the method according to the invention for producing holes drilled into the profiled sealing strip 1 using the drilling device 7 according to the invention can be used in both stationary and mobile application.

[0062] Reference numerals list

[0063] 1 Molded sealing strip

[0064] 2 drilling units

[0065] 3 Boot device

[0066] 4Rotation angle positioning device

[0067] 5 Guidance Unit

[0068] 6 Application head

[0069] 7 Drilling device

[0070] 8 Worm

[0071] 9 Worm gear

[0072] 10 Suction device

[0073] 11 Tool feeder

[0074] 12 Supply Department

[0075] 13 Length measurement unit

[0076] 14Conveying direction

[0077] 15. Drill

[0078] 16 substrates

[0079] 17 Protective wall

[0080] 18 Boot Blocks

[0081] 19 Assembly board

Claims

1. A drilling device (7) for forming a sealing strip (1), characterized in that: A drilling unit (2) and at least one guiding device (3) are provided, by which the profiled sealing strip (1) can be guided along its longitudinal extension, wherein the guiding device (3) together with the profiled sealing strip (1) can be rotated relative to the drilling unit (2) around a longitudinal axis extending in the longitudinal direction of the profiled sealing strip (1), and the guiding device (3) has a rotation angle positioning device (4).

2. The drilling device (7) according to claim 1, characterized in that The guide device (3) comprises at least one guide unit (5), wherein in the case of two or more guide units (5), the guide units (5) are arranged at a distance from one another.

3. The drilling device (7) according to claim 2, characterized in that The rotational angle positioning device (4) is arranged in the region of the at least one guide unit (5) or, in the case of two or more guide units (5), between two of the guide units (5) or outside or beside the guide unit (5).

4. The drilling device (7) according to one of the preceding claims 2 and 3, characterized in that The rotation angle positioning device (4) has a guide unit (5).

5. The drilling device (7) according to any one of the preceding claims 2 to 4, characterized in that The guide unit (5) has a roller guide, a profile guide or a bearing guide.

6. Drilling device (7) according to one of the preceding claims, characterized in that The rotation angle positioning device (4) has a friction wheel or a displacement crankshaft or a worm gear transmission device or a gear transmission device.

7. The drilling device (7) according to one of the preceding claims, characterized in that The rotation angle positioning device (4) can be driven by means of a pneumatic cylinder or by means of a worm gear as a linear drive or as a worm drive with a worm (8) and a worm wheel (9) or by means of a stepper motor or a servomotor or a combination of at least two of the aforementioned drives.

8. Drilling device (7) according to one of the preceding claims, characterized in that The drilling unit (2) is arranged in the area of ​​the guide device (3) or in the area of ​​the at least one guide unit (5) or in the case of two or more guide units (5) between two of the guide units (5) or in the area of ​​the rotation angle positioning device (4).

9. The drilling device (7) according to one of the preceding claims, characterized in that The drilling unit (2) is arranged with a main working direction transversely or perpendicularly to the longitudinal extension of the profiled sealing strip (1).

10. The drilling device (7) according to one of the preceding claims, characterized in that The drilling unit (2) has a pneumatic or electric or electromechanical linear drive as tool feeder (11).

11. The drilling device (7) according to one of the preceding claims, characterized in that A suction device (10) or a blower or a collecting tank is provided.

12. An application head (6) for a profile seal application device, characterized in that The application head (6) has a drilling device (7) according to one of the preceding claims 1 to 11.

13. Application head (6) according to claim 12, characterized in that The drilling device (7) is arranged in the region of a feed (12) of the profiled sealing strip (1) and / or before or after a length measuring section (13) of the profiled sealing strip (1).

14. System for applying a profiled sealing strip to a door or body of a motor vehicle, characterized in that The system comprises a drilling device (7) according to one of claims 1 to 11 and a profile seal application device with an application head (6) for applying a profile seal strip (1) to a door or a vehicle body.

15. The system according to claim 14, characterized in that The drilling device (7) is arranged in the region of a feed (12) of the profiled sealing strip (1) to the profiled seal application device and / or before or after a length measurement (13) of the profiled sealing strip (1).

16. The application head (6) according to one of the preceding claims 12 and 13 and / or the system according to one of the preceding claims 14 and 15, characterized in that The drilling device (7) is displaceable or movable along a conveying direction (14) parallel to a supply portion (12) of the profiled sealing strip (1).

17. Method for producing holes drilled into a profiled sealing strip (1) using a drilling device (7) according to one of claims 1 to 11, characterized in that A profiled sealing strip (1) that moves or does not move in the direction of its longitudinal extension is rotated from an initial position around a longitudinal axis extending in the longitudinal direction between 0 and 75 degrees as required to a drilling position, and then in the drilling position, a drilling unit (1) produces a hole in the profiled sealing strip (1), and then the profiled sealing strip (1) is rotated back from the drilling position to or brought to the initial position as required, wherein the initial position and the drilling position are the same when the profiled sealing strip (1) is rotated 0 degrees around the longitudinal axis extending in the longitudinal direction.

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