DEVICE, A SYSTEM AND A METHOD FOR BUILDING STATIONARY STRUCTURES ON A WORKING SURFACE

Abstract

An example device for building stationary structures on a work surface includes a scaffold, which is arranged around the work surface. In the example, a working head is provided, which, with the help of multiple control cables is held on the scaffold and arranged above the work surface, upper control cables are provided, which run above the working head from the scaffold, lower control cables are provided, which run below the working head from the scaffold, all control cables can be extended out of the scaffold and retracted to the scaffold, in order to change a position of the working head, and a control unit is provided, which is connected with actuators for the extending and retracting of the control cables, and is configured to actuate these actuators to change the position of the working head.

Claims

1. A device for building stationary structures on a work surface, wherein the device comprises a scaffold, which is arranged around the work surface, wherein a working head is provided, which, with the help of multiple control cables, is held on the scaffold and is arranged above the work surface, wherein upper control cables are provided, which run above the working head from the scaffold, wherein lower control cables are provided, which run below the working head from the scaffold, wherein all control cables are extendable out of the scaffold and retractable to the scaffold, in order to change a position of the working head, and wherein a control unit is provided, which is connected with actuators for the extending and retracting of the upper control cables and the lower control cables, and is configured to actuate the actuators to change the position of the working head.

2. The device according to claim 1, wherein the number of upper control cables corresponds to the number of lower control cables, wherein corresponding pairs of upper and lower control cables extend over one another, and/or wherein at least three upper control cables and/or at least three lower control cables and/or at least three pairs of control cables are provided, and/or wherein the control cables are fixedly anchored into the working head.

3. The device according to claim 1, wherein each control cable is assigned a distinct actuator, and/or wherein each actuator includes a drive motor and/or a guide wheel for the control cable.

4. The device according to claim 1, wherein at least one of the control cables includes a power line and/or a data line.

5. The device according to claim 1, wherein the scaffold continuously surrounds the work surface, or consists of scaffolding elements discontinuously distributed around the work surface, and/or wherein the scaffold is mounted or configured height-adjustably.

6. The device according to claim 1, wherein the working head includes or holds a nozzle for a sprayable building material, and wherein the nozzle is communicated with a building material source via a line.

7. The device according to claim 1, wherein the working head includes a lifting device for prefabricated components, the lifting device including a gripping device and/or a suction device.

8. The device according to claim 1, wherein the control unit is configured to automatically or semi-automatically actuate the actuators, and thereby change the position of the working head and/or the building material output via the nozzle and/or the lifting device, on the basis of control information from a control file, wherein the control file includes a BIM or CAD file.

9. A system comprising: a device for building stationary structures on a work surface, the device comprising a scaffold, which is arranged around the work surface; and an external computing unit and/or a detection unit arranged on the device or externally, and/or a crane, wherein a working head is held on the scaffold and is arranged above the work surface via multiple control cables, the multiple control cables including upper control cables and lower control cables, wherein the upper control cables run above the working head from the scaffold, wherein the lower control cables run below the working head from the scaffold, wherein the upper control cables and the lower control cables are extendable out of the scaffold and retractable to the scaffold in order to change a position of the working head, and wherein a control unit is connected with actuators for the extending and retracting of the upper control cables and the lower control cables, the control unit being configured to actuate the actuators to change the position of the working head.

10. The system according to claim 9, wherein the device and the external computing unit and/or the detection unit and/or the crane each comprises a communications unit for a reciprocal or unilateral data transmission.

11. The system according to claim 9, wherein the detection unit is configured to recognize structures on the work surface, and to transmit information about the appearance of the structures to the control unit or the external computing unit.

12. The system according to claim 9, wherein the crane is a slewing tower crane.

13. A method for automated or semi-automated building of stationary structures on a work surface using a device, or a system, the method comprising: spraying a sprayable building material onto the work surface, or onto existing structures on the work surface out of a nozzle held or arranged on a working head, wherein a movement of the working head is caused through a retracting or extending of control cables.

14. The method according to claim 13, wherein the sprayable building material is shotcrete, wherein the method comprises a wet- or dry-spray method.

15. The method according to claim 13, wherein the movement of the working head and the output of the sprayable building material and/or the transport of prefabricated components onto the work surface or on the work surface is controlled based on information from a control file.

16. The method according to claim 13, wherein the device comprises a scaffold, which is arranged around the work surface, wherein the system comprises the device and an external computing unit, and/or a detection unit arranged on the device or externally, and/or a crane, wherein a working head is held on the scaffold and is arranged above the work surface via the control cables, wherein the control cables include upper control cables and lower control cables, wherein the upper control cables run above the working head from the scaffold, wherein the lower control cables run below the working head from the scaffold, wherein the upper control cables and the lower control cables are extendable out of the scaffold and retractable to the scaffold in order to change a position of the working head, wherein a control unit is connected with actuators for the extending and retracting of the upper control cables and the lower control cables, the control unit being configured to actuate the actuators to change the position of the working head.

17. The method according to claim 16, further comprising recognizing structures on the work surface via the detection unit, and transmitting information about the appearance of the structures from the detection unit to the control unit or the external computing unit.

18. The system according to claim 9, wherein the number of upper control cables corresponds to the number of lower control cables, wherein pairs of upper and lower control cables extend over one another.

19. The system according to claim 9, wherein the upper control cables and the lower control cables are fixedly anchored into the working head.

20. The system according to claim 9, wherein the upper control cables includes at least three upper control cables and/or wherein the lower control cables includes at least three lower control cables.

Description

[0035] Further details and advantages of the invention result from the exemplary embodiment explained by means of the figures. The figures show in:

[0036] FIG. 1: an illustration of a device according to the invention;

[0037] FIG. 2: an illustration of a system according to the invention, including the device according to FIG. 1 and a slewing tower crane; and

[0038] FIG. 3 an illustration of a system according to the invention, including the device according to FIG. 1, a slewing tower crane and an external computing unit.

[0039] The device according to the invention is generally indicated with the reference character 1. It includes a scaffold 2 and a working head 3, wherein the scaffold 2 surrounds a work surface 4. The working head 3 is held on the scaffold 2 with four pairs of upper control cables 5a and lower control cables 5b, and is arranged above the work surface 4. The upper control cables 5a run above the working head 3 from the scaffold 2, and the lower control cables run below the working head 3. All control cables are fixedly anchored in the working head 3. The control cables 5a and 5b are all fiber ropes. In one of the lower control cables 5b, a power line and a data line is integrated, in order to supply the working head with power, and in order to ensure a frictionless data flow.

[0040] The control cables 5 are mounted on the scaffold 2 such that they can be extended out of the scaffold 2, and retracted to the scaffold 2, in order to change the position of the working head 3 above the work surface 4. Electric motors 6 are provided for this purpose in the mounting region of all control cables 5.

[0041] A control unit (not illustrated in greater detail in the figures) actuates the electric motors 6 on the basis of control information, in order to control a movement of the working head 3 over the work surface 4.

[0042] The scaffold 2 is continuously arranged around the work space 4 and has the shape of a rectangle. Based on a height-adjustment system not further represented in the figures, it can be lifted as a whole.

[0043] The working head 3 holds a nozzle 7 for shotcrete, wherein the nozzle 7 is communicated with a concrete source 9 by means of a line 8. The working head can moreover comprise a lifting device not represented in the figure in detail, in order to transport prefabricated components from a magazine 10 to a target position on the work surface 4. In this case, it can be a gripping device or a suction device, for example.

[0044] The control information for the control unit originates from a control file, which is stored on an external computing unit 11. The external computing unit 11 and the device 1 according to the invention each comprise a communications unit not further represented in the figure, to enable a transmission 12 of the control information of the control file from the external computing unit 11 to the device 1 according to the invention. The control information here is obtained from a BIM model.

[0045] In one embodiment, a detection unit not further represented in the figure is provided, which can recognize structures on the work surface, and can transmit information to the control unit or on the transmission path 12, to the external computing device 11.

[0046] Moreover, a slewing tower crane 13 is provided, in order to transport materials for the concrete source 9 and components for the magazine 10. The crane 13 likewise comprises control- and communications units not further illustrated, in order to be able to receive control information from the external computing unit 11.

[0047] The device 1, the external control unit 11 and the crane 13 can, within the scope of the automated or semi-automated construction of three-dimensional stationary structures on the work surface 4, interact on the basis of the control information from the control file. Here, shotcrete is freely sprayed on the work surface 4 in the wet- or dry-spray methods. The movement of the working head 3 and the output of the shotcrete are controlled based on information from the control file. The movement of the working head 3 is caused through the retracting and extending of the control cables 5, wherein the control unit actuates the motors 6 based on information from the control file. Additionally, through movement of the working head 3 and actuation of the lifting device, a transport of the prefabricated components from the magazine 10 onto the work surface 4 and on the work surface 4 can occur.

[0048] Reference character 14 indicates a monitoring field on the crane, which is supposed to symbolize a section of the detection region of a sensor, which is arranged on the crane, and is communicated with the external computing unit 11. Based on this sensor, the construction progress is monitored, and the external computing unit 11 is configured such that the measuring data received from the sensor can be compared with the database out of the BIM model. If a deviation from the target is determined, the control data for the cable robot is modified, in order to compensate for the deviation.