WO2015121384A1

WO2015121384A1 - Multifunctional hydraulic assembly

Info

Publication number: WO2015121384A1
Application number: PCT/EP2015/053027
Authority: WO
Inventors: Holger Junkers
Original assignee: Juko Technik Gmbh; HYTORC Division Unex Corporation
Priority date: 2014-02-12
Filing date: 2015-02-12
Publication date: 2015-08-20
Also published as: DE102014101714A1

Abstract

The invention relates to a multifunctional hydraulic assembly for driving hydraulic tools, in order to meet as many requirements as possible for different system applications. This is achieved via an efficient cooling- and filtering concept, and via the modular cascadability of the motor and of the electronics, or the possibility to add optional additional reservoirs via intake lines or communicating systems. In order to meet industry requirements in terms of data management, data access, and data update, it is possible to control, update and bi-directionally exchange data in the assembly using external central servers or a Cloud. By means of an online portal as a Cloud service, program data and/or process data and/or system data of the hydraulic assembly are saved and analysed for the purposes of process evaluation and made available for download or via a web browser to an authorised group of people. A further Cloud service automatically informs the users and clients when maintenance of the equipment or the system is due or necessary. In addition, it is possible to integrate all the system accessories used, via the Cloud, for the inclusion of the maintenance intervals, such that the whole system is flexible and the multifunctional use of the hydraulic assembly in the system group is achieved.

Description

Multifunctional hydraulic unit

Multifunctional hydraulic power unit and method for controlling hydraulic tools and / or hydraulic power units with an interface for receiving process programs and sending process results for outsourced process management, process evaluation or data backup and suitable for stationary or portable operation of the unit in a simultaneously centrally organized data management.

State-of-the-art hydraulic power units are used to drive and control hydraulic tool components. The used aggregates are

developed application-specific and therefore only very limited use in terms of their hydraulic, electrical and process engineering possibilities.

Thus, depending on the connected tool, e.g. a very different amount of usable oil volume and capacity required. This leads to the fact that there are a multiplicity of most different aggregate models.

The requirements for process control are also very different. For the operation of tools such as hydraulic torque tools, for the

Programming the units, the screwing parameters in various ways, usually via individual parameters, which serve the control set. In many cases, the adjustment is made manually or the parameters are entered relatively inconveniently and cumbersome in a sequence or loaded sequentially by a connected reading device.

Program-controlled systems which are externally programmed are triggered purely manually and from a connected memory such as a USB stick or similar portable storage medium loaded from. Also, portable systems are known which are adjustable via a manual Druckeinstellventil and pressure gauge to adjust a desired working pressure.

There are currently no systems in the prior art that allow different externally stored programs - such as screwdriving programs for driving hydraulic screwdrivers - on the unit either triggered internally or externally or controlled to load. Furthermore, it is not possible either directly from a server or from a data store such as "from the cloud" or alternatively locally from the internal

Memory to load and / or start automatically.

This leads u.a. to the fact that systems in the prior art at least partially have the following disadvantages:

• The systems are not able to solve the different requirements for fluid reservoir, flow rate and electrical connection data without a model change modular.

• The systems do not have the required properties for fluid cooling.

• The systems do not have the required properties for fluid filtration.

• Control parameters of the unit must be complicated and loaded and stored individually or sequentially or manually.

• Aggregate control via cloud, server or locally is not possible.

• There can be no automated program download from an external

Central memory to be performed due to automated application detection.

• It is not an automated, centralized quality assessment of the

Process results possible.

• There is no variable usability for different process requirements by means of

internal and / or additionally required external sensors given.

• There are no centrally analyzed data available for process evaluation

can be used.

Especially in industry, the multifunctional usability of such aggregates and centralized data storage and organization to ensure data up-to-dateness are playing an increasingly important role. Thus, on the one hand, the program updates from worldwide used units for a variety of applications, on the other hand, the fast access to the process results reliably guaranteed.

It is an object of the present invention, at least partially overcome the disadvantages known in the prior art and to provide an apparatus and / or a method with which the disadvantages of the prior art are at least partially solved or improved.

This object is achieved with a device according to claim 1 and the method according to the invention according to claim 10. Preferred embodiments of the present invention are the subject of the respective subclaims.

The multi-function hydraulic unit has a modular design that allows motors of different voltage, number of outer conductors and power to be mounted on the same pump block to meet different supply source requirements. Furthermore, there is at least one electrical interface from the motor to the electronics, which can cover the entire voltage and current range and at the same time ensures a tight connection between the fluid-carrying pump or hydraulic unit and the top-mounted power electronics. The power electronics has

Circuit breaker, which are designed purely as an on / off switch in one embodiment, in another embodiment as a frequency converter. The electrical interface from the motor to the power electronics is carried out via a two-sided populated board, wherein the circuit board seals against the fluid via O-rings to the motor housing or tank (depending on the embodiment). The engine of the hydraulic unit is preferably an under-oil engine due to the lower noise emission, it may also be designed as a dry runner in another embodiment. Due to the arrangement of the pump and the filling opening for the fluid, the motor can be operated standing or lying to the footprint of the hydraulic unit and is thus operable in at least two orientations. The handset of the hydraulic power unit is used to start and stop the process, can be wired or wireless and can be integrated for special applications in the removable user interface, so that this user interface handheld also controls the start-stop functionality of the process. The user interface also contains a process data visualization, which outputs the process status on the one hand, and the process values on the other, and displays them graphically. In addition, however, another analogue manometer may also be attached to the unit in order to make data redundancy available to the user via an additional channel. At the At the front end of the engine, a fluid cooler is mounted directly in front of the engine fan to reduce the fluid temperature in extreme environmental or operating conditions. In a portable basic version, the unit can supply the connected tool with its own internal useful volume with fluid. However, if several or particularly large tools such as lifting cylinder connected or Mehrtoolbetrieb be necessary, the hydraulic unit can be a communicating external auxiliary reservoir with the same

Maximum fluid level as connected to the hydraulic unit. For this operating mode, the cover on the hydraulic unit is designed as a ventilation element and the connection to the hydraulic unit is located at the lower connection to the reservoir of the unit. When communicating fluid connection of the fluid level in the unit depends on the discharged fluid quantities and the flow conditions in about the same level as

Fluid level in the external additional reservoir. So the possibility exists on the same

If a larger volume of fluid is to be made available to the pump, a suction principle must be selected. For this purpose, in turn, a ventilated additional reservoir is connected to a ventilated closure lid above the suction region of the uppermost pump element. For the sucking variant, the closure cap on the hydraulic unit is to be selected in a sealed design so that a negative pressure can be created by the fluid removal in the reservoir, by means of which the fluid is sucked out of the external additional reservoir. Through a chaining of multiple reservoirs can in any two versions, any

Fluid volume are provided, which in turn ensures a multifunctional use.

According to a particularly preferred embodiment, the inventive

Hydraulic unit with a preferably externally arranged, ventilated and fluid-dynamically communicating additional reservoir connectable. For this embodiment, the closure cap of the hydraulic unit is preferably not made airtight, so that in particular by means of the freely selectable additional reservoir, the fluid requirement of other consumers can be adjusted accordingly. Alternatively, the hydraulic unit according to the invention with an externally arranged, ventilated additional reservoir via a Ftuidleitung with the reservoir of the

Hydraulic unit can be connected, in which case the Verschlussdecket the hydraulic unit for operation airtight run and the Ftuidleitung thus acts as a suction line, by means of which the Fuidreservoir for supplying any consumer your fluid needs can be extended accordingly and thus preferably no Füllstandshöhenlimitierung the additional reservoir for the operation of the unit. Since it is possible for the operator to make selection errors in a purely manual program selection, the device has the option of starting internal process programs externally or of transferring entire process programs externally. In this case, the external process call according to the programming of the system to an automated

Start the program of the hydraulic unit. For this purpose, a multifunctional reader in a wireless or wired version is connected to the hydraulic unit. The reader may have, for example, a TAG reader (label reader, tag reader), a 1D, 2D or 3D scanner, by means of which an application name of the application or simply an order form is read. Via the application name, the program can be loaded directly from the multifunctional reader or, for example. via WLAN or wired to the hydraulic power unit. It is also possible that only the application name and supplementary documentation information, such as the name of the worker, the serial number of the machine, etc., is transmitted to the hydraulic unit and that

corresponding program is started via the application name on the unit. Another embodiment is the possibility that by loading the application name from the reader, the program request to a cloud service or an external server is started and the program is transferred from there via the reader to the hydraulic unit and started. Since it must be ensured that the transmitted data arrives without error at the receiver, they are provided with a checksum, such as cryptographic or hash value. If the checksum does not match the data, a new request for data is made to the sender of the message until the correct data is sent. The multifunctional reader can also be, for example, a mobile phone with, for example, Bluetooth or WLAN connection, which also has the connection from the WLAN via a WLAN hotspot

Hydraulic unit provides to a server or a cloud service.

The process data determined are processed after the process has ended in a system call from

Transfer the hydraulic power unit to the multifunctional reader back to the server or a cloud service. By means of the cloud service, the received process, system or

Program data stored, analyzed and viewed, for example via a web browser by an authorized group of people. The connected cloud service also offers the functionality that the user can directly retrieve information about the maintenance requirements or the necessary replacement of his devices. From the cloud service, customers and users are automatically informed via special services that maintenance of the plant is pending. If the customer does not want to carry out the maintenance via the manufacturer, Can he also put back further reminders himself by confirming that he himself carried out the safety-relevant service; Thus, he receives until the next due date again a call for maintenance. By means of this service in the cloud, not only the pump set but also all third-party inventory of the customer can be maintained and managed. Thus, the aggregate with the cloud solution guarantees one

Overall approach to maintenance and management for a wide variety of

System compositions, since a complete hydraulic system always includes at least one unit, a connecting line and a tool.

Software updates are sent to the multifunctional hydraulic power unit via the server and / or the cloud to ensure software updates. If an update fails, the original version will be restored. This ensures that the system fails due to a failed update. The update fixes detected software problems, new features and functionality

Tools provided for the control.

The interface of the hydraulic unit is equipped in one embodiment with a graphical user interface with a touch control. The prompt is for

Simplification of the operating concept based on the concepts of modern smartphones, as most users have developed an intuitive understanding. The operating instructions are integrated in the hydraulic unit and can be read via the interface. For system parameters, program functions, cons, operating elements and program parameters, an emergency aid can be called up by means of which the selected function point is described and explained. Thus, the unit ensures fast emergency assistance with questions about operation and help with process error messages.

The multifunctional hydraulic unit is designed according to a preferred embodiment for intermittently operating screwing tools. Due to the safety-relevant connections in screwdriving processes, such as in a wind power tower, a crane flange or a castor screw connection, there is a high demand for process reliability and documentation capability.

The hydraulic unit can do this for example via a sensor interface

Angle information among other things between tool and screw, as well as actual data on the preload force and the screw elongation, as well as provide torque values, process and control the process via these parameters. In particular, the externally provided Serve parameters as direct control parameters or be used as test parameters for a process validation. For this purpose, the unit detects various process parameters, in particular via internal sensors.

In particular, in more complex tightening process such as the intermittent yield strength controlled tightening, it is particularly advantageous due to the process reliability to capture the parameter of the screw elongation as directly as possible via a length measurement or angle measurement, so that the yield strength of the screw can be achieved as precisely and reliably. By means of a corresponding sensor system also relatively simply other other verification methods, such as e.g. the "further turning method" on the measurement of rotation angle and torque or equivalent methods with the

Hydraulic unit to be performed.

According to a particularly preferred embodiment of the present invention, centralized data storage and storage, such as in a cloud, makes it possible to analyze and evaluate screwing processes by means of special services. The analysis of the data allows different filter criteria, such as dispersion consideration when using different lubricants, tightening methods, measuring methods, environmental influences, date range, IO screwing, NlO screwing, user, program name, clamp lengths, etc. About such procedures is a user of this platform especially a continuous one

Improvement process of bolting possible, in order to achieve improved system safety and cost-effectiveness.

According to a further preferred embodiment of the present invention, large or multiple screwdrivers are used simultaneously under special operating conditions, which have a higher fluid requirement than can possibly provide a single unit of useful volume. By means of an external additional reservoir, the desired

Fluid volume can be extended according to the requirement.

By a reading device, which may also be a mobile phone, according to another embodiment, screw program names can be read by an application, programs can be downloaded from a cloud, from a server, or from a reading device, transferred to the aggregate or the aggregates and started. It is also possible that tightening programs, which are already located on a local memory of an aggregate, are started externally by means of a reading device and executed on an aggregate. Among others, with this method Input errors of the operator avoided or reduced. In this case, the reader can read either different optical codes or TAGs preferably.

For example, the user can take pictures of the application with a mobile phone and send them to an aggregate for documentation of the application. The determined process data, suitability curves and system data are preferably first visualized and stored internally in the hydraulic unit and sent in a data connection to a shared server, a cloud or a reader, so that a centralized data archiving, analysis and visualization can be done.

Furthermore, maintenance information of a unit or of an accessory can be read in via a TAG via an external reading device and according to a further exemplary embodiment; This ensures, for example, that no maintenance of the safety-relevant components is forgotten or overlooked. For this purpose, the reader preferably notifies the user of the status of the user after reading in the TAG or the optical code

Maintenance interval. Using a web browser, a shared personal area worldwide can access the current database externally and retrieve, view or analyze the existing data. Process errors are then, for example, directly to a selected

Person group forwarded. Thus, a closed quality management can be guaranteed.

According to a further, particularly preferred embodiment, a separate web browser is located on a hydraulic aggregate, by means of which access to other process data in a cloud and / or on a server can also take place in order to have a direct comparison with old process results and / or processes , Via a LAN, WLAN, USB, GSM and UMTS interfaces software updates of the system can be carried out. Furthermore, it can be checked whether a more current program version is available, so that then a user can be informed about the possible update. This ensures that the screwdriving system is always state-of-the-art.

A user interface visualizes and displays the actual data for the screw thread directly to a worker. Since it is helpful, especially with screw runs, to also see the history, the display can be displayed alphanumerically and via an XY plot, the angle over torque, time over torque and angle over angle. In the case of an angle-related method, such as the torque-rotation angle method, the yield strength is controlled

Method, the torque-controlled rotational angle-monitored method and the angle-controlled analysis method, the intermittent Rückhubphase the tool by returning angular rotations preferably hidden, since the tool falls back. In a time-related method without angle sensor, it is also possible to select whether the return stroke phase is visible or hidden.

To ensure fast tool control, a sensor is attached to the screwdriving tool, which detects the position of the drive and initiates the pre-stroke return stroke control on the hydraulic unit via pulses. Thus, it is possible to have a piston return stroke over the

To control the hydraulic power pack without the need for an inactive pressure increase, the time required, wasted energy, would lead to a higher operating temperature and a slower tightening process and faster tool and assembly wear.

The hydraulic unit also preferably has a removable user interface in which in one embodiment, the start and stop buttons for process control can be integrated. In particular, for the operation in production lines or assembly sites, a location-independent attachment of the operating interface may be useful because you can place the interface in a well-visible place, which increases the ease of use and safety. There are several mounting options available, such as magnetic mount, belt mount, Velcro fastener or mounting via screw-on points.

The following is an example of the suitability course for a yield strength controlled process described:

At a bolting flange is a code carrier, e.g. a day. By means of the portable reader, the content of the tag is read, the name of which refers to a stretch limit controlled program. The user is asked from which source he

preferably wants to read the program file or it will be directed to a defined source such as the cloud steered automatically. For this purpose, in the case of a possible operator selection, the reader itself, a server, a cloud or the aggregate is available as a possible data source. The data is either wireless or wired after operator selection loaded from the source and transmitted wirelessly or wired to the hydraulic unit for execution. If the hydraulic unit is in a receivable mode, the transmitted program is immediately started and the operator is prompted to make various adjustments and / or confirmations. Contents of the tightening program are the

Screw parameters, control parameters, system requirements, the screwing order and extensible user queries. Upon completion of this sequence, the operator will be notified of the informed of the planned screwing sequence and prompted to start the screwing process. For this he must have connected the appropriate sensors and the screwing on the

Set application. By pressing the start button by the operator starts the

Tightening process. The unit checks during the intermittent screwing the entire Gradienentenverlauf the tightening process and ends the tightening process automatically when the programmed relative gradient threshold to linear gradient is exceeded. This is the characteristic for reaching the yield point. The process is also terminated when the operator performs an operator close, or when the

Torque is no longer sufficient to continue to turn the screw and thus successfully tighten to the yield point. After completing the operation, the intermittent tool is moved to the start position and the unit motor is turned off. The system checks the achieved physical values by comparison to the default values from the tightening program and / or statistical values from the cloud or the server. If the result is within the desired ranges, the process is evaluated as "OK" and the output turns to green, if the process is faulty, a "NOK" message and the "NOK" message appears

Output mask on the user interface and / or the remote control turns red. The operator is then alerted to the next bolt number to which he needs to change the wrench, and the process repeats until the successful completion of the last bolt, which in some cases can be several hundred bolts. If there are single operations marked with "NOK", the operator can immediately decide whether he wants to carry out the process immediately or at a later time, whereby it is possible to adjust the screwing sequence as desired The screwdriving program executed and the tightening protocol are saved in one file merged and changes the

Screwing order can be taken from the protocol. The documentation covers the complete tightening process in XY coordinates, the final values reached, the executed

Tightening program and all additional operator inputs and system information.

According to another preferred embodiment, the hydraulic power unit has a PDF generator on which a protocol is also output in pdf format. So that the tightening protocols are forgery-proof, a checksum is inserted, which makes manipulations of the protocol recognizable. In the case of an existing wireless or wired connection, the protocol data are transmitted immediately after the generation to, for example, a reading device, which in turn transmits the data wirelessly or by cable to a server or a cloud. Depending on the program definition or system setting, the data may be remain locally stored on an aggregate and at any other desired time wirelessly, wired, via USB storage, via USB interface, LAN or WLAN to a server and / or a cloud to be transferred. The data in a cloud is archived and stored in a database. Depending on the setting of the service, after receipt of the data in a cloud, an authorized group of persons can be informed automatically if, for example, data has arrived, faulty data, system messages or system diagnostics are present which necessitate, for example, maintenance. However, an authorized operator can also access the data in the cloud at any time worldwide and use filters to visualize or view specific data. For example, the possibility exists of data according to a date range, the program name, a user, an aggregate type,

To filter error logs, error records, the "ΟΚ" records, the "OK" logs, and / or the customer or other criteria and parameters, this closed process is particularly relevant to the quality officers of a company, as it uses the

Results very quickly recognize correlations and take countermeasures. For example, the QA representative can adapt the program if this is due to a change of lubricant, another grade of screw, or other

Surface textures is required. He can put the new or modified program in the cloud and all other program launches via the reader then take place with a fixed link to the cloud worldwide with the updated program, without the risk that some employees work with the old or the wrong standard. By means of a cloud, e.g. Each individual process can also be regarded and analyzed as an XY plot, which provides a high degree of security, especially when tracking problems.

The present invention will be described with reference to the following embodiments, which each show only one possible embodiment of the present invention. Showing:

Figure 1 in a schematic, perspective view of an inventive

Hydraulic pump unit in a largely wireless version and with additional suction reservoir acting suction;

Figure 2 in a schematic, perspective view of an inventive

Hydraulic pump unit in a largely wired version and with communicating additional reservoir;

Figure 3 is a schematic representation of another aspect of the present invention. It is a portable motor-driven hydraulic unit, preferably with an under-oil motor and at least one piston pump for driving hydraulic

Tool components, such as intermittent and / or continuous work

Screwdrivers, lifters, spreaders, tensioners or similar hydraulic device.

The aggregate 34 has an unillustrated internal and / or external data interface for information transfer and / or aggregate control with at least one server 10 and / or cloud 11. By means of this interface and the necessary drivers, the aggregate 34 is capable, e.g. an unillustrated radio module including GSM (Groupe Special Mobile), GPRS (General Packet Radio Service), EDGE (Enhanced Data Rates for GSM Evolution), UMTS (Universal Mobile Telecommunications System), HSDPA (High Speed Downlink Packet Access ) To operate LTE (Long Term Evolution) or WLAN (Wireless Local Area Network) module to provide direct remote data exchange 2 or 26 and aggregate 34 control

enable. In this case, an access-authorized person area 33 is authorized by means of the cloud 11 to access this data. Thus, preferably carried out from the cloud 11 and / or the server 10 out in a rule violation of the process results to a selected access authorized group of people 32 or 33 information to verify, optionally with or without the measurement data. So it is possible to realize an automated instant support for process problems. Furthermore, the measurement data in the cloud 11 and / or in the server 10 are used to analyze mean values, typical scatters, typical success processes and typical error histories, in order to obtain better models for the analysis of the bolting data and thus in a self-contained quality process To improve analysis possibilities on and on.

By means of a short-range radio link, such as with a not shown

Radio technology such as WLAN, Bluetooth, ZigBee or the like, the aggregate by means of an additional external eg RFID (Radio Frequency Identification) capable reader 22 for TAG 21, or via 1D, 2D or 3D Barcodereader 22 and a corresponding not code read an application name from a means attached to the application. The external multifunctional reader 22 has an interface and special software for a controlled exchange of data via the radio links 23 or 36 to a data server 10 or a cloud 11. The reader 22 transmits the application name and receives in return from the addressed data memory the associated current Program or programs which are transmitted via the radio link 27 to the unit and then started. The process of program download may already be due an upcoming service process are triggered and made in advance on the reader 22. The process of reading the application name by the reader 22 is used in this case only the verification of the correct operation and as a trigger for the

Program transfer to the unit 34. After the program has finished or ended, the process result is either automatically or manually triggered back via the

Communication link 27 is sent to the reader 22, which in turn sends this information to the selected data memory 10 or 11 via the communication path (23 or 36) or initially holds in the internal memory. Furthermore, the direct data storage from the aggregate to a cloud 11 and / or another server 10 by means of wired Fig.2 or wireless Fig.l transmission is possible. Should either the aggregate 34 or the reader 22 have a build-up problem with the data connection, the data will be independent of the

Data link so long on the devices for deletion restricted until they have been successfully discontinued. This measure reliably prevents data loss. In this case, the connection between the hydraulic unit and reader 22, server 9, cloud 11 and printer 19 can also be designed wired.

In the case of data traffic to and from the external memory 23 and 24 and 26 and 27 and 36, the respective end users of the transmission path 10 and 11 and 22 and 34 check a check sum integrated into the data. If an error is detected during the checking of the checksum, a new data request or an error message is transmitted or triggered either by the unit 34 or by the external memory 10 or 11 or 22. If, due to a deviation in the checksum, the sender detects that the data record contains an error, this erroneous data record is not sent and the error is reported.

Since the hydraulic unit 34 according to the invention is used for many different requirements, such as e.g. hydraulic screwdrivers, hydraulic lifters, hydraulic spreading devices, hydraulic presses, etc. and sometimes relatively large amounts of fluid are required, it has at least one interface 17 or 35 for external connection of at least one

Additional reservoir 14, which is communicating in one embodiment Fig.2 communicating and in another embodiment Fig.l connected to the reservoir. In this case, the additional reservoir 14, for example, for a more compact structure in another embodiment, not shown, also be firmly connected to the unit 34. In this case, the closure 13 is designed as a ventilation opening and via an interface 15, the fluid line 16 is attached to the fluid exchange between additional reservoir 14 and unit 34. In the application example Fig.2 with communicating fluid exchange is the port 17 of the fluid line 16 at the bottom of Reservoir of the unit 34. In the suction concept, the connection of the fluid line 16 is at the top of the reservoir. For the sucking execution of the additional reservoir 14 on the unit 34, it is necessary that the closure lid 20 is made tight, so that in the case of fluid removal from the reservoir, a negative pressure in the reservoir can arise, through which the fluid is sucked from the additional reservoir 14. In contrast, in the case of the communicating design, the closure lid 30 must also be designed as a ventilation element.

So that the different requirements can be met with the delivery rate, the unit 34 is able to drive at least one piston pump of different flow rate size or simultaneously several pumps of different design.

For the multifunctional use of the unit 34, the direct operation of a printer 18 on an existing interface, such as USB as a wired solution 19 or Bluetooth as a wireless solution via the radio link 25 is possible. Thus, the measurement protocols can be directly on

Application location according to the program requirements or user selection issued and attached to the documents.

The hydraulic unit 34 also has a standardized sensor interface (not shown) for connecting external sensors. This can be, for example, CAN, Ethernet, 0... 10 V, 0... 20 mA, 4... 20 mA or an incremental input of any physically measured unit whose control signals are fed into the unit 34 for control and / or documentation. In addition, the aggregate 34 has the option of integrating freely programmable support value tables, by means of which the measured physical quantities are converted to representable to their physical units. These measured external input variables can act independently or in combination with the system-internal measured variables for the process control of the unit 34.

The hydraulic unit is connected to a remote control 8, which may be wirelessly via the radio link 31 or wired and controls the unit 34.

In order to ensure a multifunctional use, the unit 34 has at least one user interface 1, which is connected to the electronic module 2 and via which programs can be created and called up. The desired process and / or process and / or aggregate and / or source parameters can be displayed via a display means 7 and / or the operator interface 1. In particular for the operation of the Aggregates in production lines, the user interface 1 is removable and thus also portable to the unit operable.

The motor housing 4 is the engine mount and forms at least part of the reservoir of the pump, not shown. At the front end of the engine is a fluid cooler 5 for providing a multifunctional insert, e.g. for continuous operation of the unit, to ensure. in the

Integrated fluid circuit is located a filling and filter element 3, which is preferably arranged on top of the unit. In order to ensure a modular construction, a connector interface, not shown, is also arranged on top of the filling and filter element 3. On the motor housing, the pump block 6 with the hydraulic connection forms the frontal closure of the motor assembly.

In a further concrete exemplary embodiment, for example, a service technician is further assisted in his bolting job via the networked tightening system. A portable mobile unit, e.g. a table PC, a smartphone or a data goggle, which has loaded the essential order information, guides the fitter to the job site. The navigation to the job site via checksum, geometry data or information, GPS data, directions, cons, street name, house number and images, which are recorded in the database to the screwing and visualized via the table PC or the data glasses and acoustically the Be notified to the fitter.

At the job site, the fitter can then use TAG readers or scanners to read in particular a barcode reader the information available in the area of the screwdriver or object, such as an application name. The reader then checks as to whether the service technician is at the correct order location and informs the installer if there is a deviation, if the order is a different flange. If the name entered in the work order matches the name read, a specific program is loaded. The loading of the screw program to be executed can be done via different ways. a) If there is an active valid LAN or WLAN connection, the reader reads the

Tightening program directly from a central database such as a server or a cloud.

b) If there is no WLAN connection, the reader can load the screwdriver from the server or the cloud via a mobile network connection (mobile phone). c) If both are not possible or there is a technical defect, this can

Mobile device also rely on directly loaded data of the work order in the internal memory, if the timeliness is ensured within a certain predetermined time window, which defines the client or pretends.

The thus loaded program data contains all the necessary and essential tightening case information, e.g. the data on the control variable, the control variable, the screwing method to be used, the screw scheme, the lubricant, the connected

Hydraulic tool, the environmental conditions such. Temperature, rain etc. and are thus updated on the mobile unit. This ensures that there is no obsolete or environmentally improper program with incorrect starting values or

Control values is used.

The mobile unit now transmits this program via radio interface to the multifunctional hydraulic power unit, which recognizes that this screwdriving program must be started. The multifunctional hydraulic unit informs the user via the display about the activities to be carried out and in particular regarding all essential parameters of the specific tightening program.

A key point here is that the operator is instructed via the screw scheme, which is part of the tightening program, which screw he has to tighten. However, the interface also allows the user to document deviations from the screwing scheme to ensure flexible working procedures, especially in the event that e.g. Screws must be checked and tightened repeatedly to prove the required proof of process capability.

Once the final job has been successfully completed, the multifunctional hydraulic power unit transfers the data to the internal memory and sends the data back to the mobile unit via radio interface or directly to the server, where the results of the screwdriving are automatically stored.

The multifunctional hydraulic power unit allows via its interfaces and the

Remote controllability to automated program launches a self-contained

Work process that provides the highest level of security and data up-to-dateness. The timeliness of the data refers to the centrally organized and used

Tightening programs and the rapid delivery of the results of the successful

completed work order.

The screwdriving data returned to the server are automatically scanned and stochastically examined for deviations from the saved comparison processes. Abnormalities are transmitted to the mobile unit and the installer is informed, if necessary

check conspicuous screw connections again. The type of check depends on the screwing process and the methods used. It is possible to apply, for example, a mechanical length measurement by micrometer on the

Screw connection, but also the permanent length measurement on the screw can be used, if screwing such as the yield strength-controlled tightening or

Over-elastic tightening has been used.

In this way, the highest level of process reliability for the performed

Work processes, ensured in near real time and expensive rework, which, e.g. first come to light through a pressure test, effectively avoided. For the execution of this described work process, the automated tightening program transmission to the hydraulic tightening system, the remote controllability of the equipment and the ability to communicate over the existing data interfaces with another shared network are required.

In some companies, the direct networking of bolting systems with the company's own network is not yet desirable for security reasons or is not possible due to internal guidelines. The entire tightening program is created locally on the pump and contains information such as. Control size, control size, screwing methods to be used,

Screwing scheme, used hydraulic tool and extended customer-specific documentation inputs can be specified, such as the documentation query to special environmental influences. If several systems are in operation in a company or environment and tightening programs are changed to individual systems, a so-called clone can be created, which is transferred via USB memory stick or the WLAN interface to another multifunctional hydraulic unit. Thus, these systems ensure that all tightening systems can access the same database and locally created programs can be transferred to all systems. According to the present invention, at least one tightening program, a screwing scheme, measurement data, support value tables for tools used, and

Machine elements, combinations thereof and the like understood, which are provided as a specific data or record for transmission and are used to control and analysis of another hydraulic unit.

The installer receives, for example, a written work order for a screwing to be performed. As a rule, the programs are already stored locally on the pump and the installer can manually select the program to be executed from a program list. If no tightening program is stored, the tightening program can be specified via the input interface on the multifunctional hydraulic power pack according to the work order noted on the work order

Parameters are programmed. However, in addition to the manual execution of a tightening program, the multifunctional hydraulic unit is also able to directly read a program name via a tag or barcode. Is on the

If a program with the same name exists for a multifunctional hydraulic unit, this is automatically started after the name has been read in, and the fitter can thus avoid errors when selecting a program. Required program transmissions in the event of a change are carried out manually controlled by means of the USB stick and the clone function or a direct radio transmission between the multifunctional hydraulic power units. When carrying out the work order, the fitter is again guided fully supported by the aggregate and the interface. After the successful completion of the last screw connection, an automated documentation of the data is carried out in the internal aggregate memory.

Via a local stochastic module (software) on the unit, the performed

Screw case checked for abnormalities and reported conspicuous screw to the fitter. The software also uses other bolting data, which were carried out with the same program parameters in order to have a broader database and to support the installer optimally. The bolting data can then be transferred manually to the computer via point-to-point connection via LAN or WLAN or transferred to the internal company network via USB data storage. With this working process and the stochastic evaluation, the multifunctional hydraulic power unit ensures the highest level of process reliability and process control for the screwdriving processes that have been carried out.

Another aspect of the invention is explained in detail below with reference to FIG. FIG. 3 shows in FIG. 41 an illustration of a drive unit with a connected one Schlagschrauber47. It comprises a pump unit 42 and a valve unit 43, which is connected to the pump unit 42 and configured so that it is connected to two hydraulic lines 411, one with a load stroke side and one with a

Return stroke side of an impact wrench 47 is connected. In order to adjust the torque required for the screw connection, the valve unit 43 has a pressure adjusting valve 44. After tightening connection process parameters 49 with respect to the operating personnel, the

Tool 47, a screw connection process or a screw connection application and a screw connection equipment have been detected by means of a mobile barcode scanner 46, they are transmitted wirelessly to a working unit 45, which is the

Compressive torque via a display of a control unit 48 after the data stored on a memory unit 410 data has been queried. After the indicated compression torque has been set by the operator at the pressure adjusting valve 44, the screwing operation can be started and stopped via the control unit 48. It should be noted that the compression torque or the screw biasing force is the force that is necessary for tightening and / or loosening the screw connection. In an alternative embodiment, which is not shown here, the setting of the particular

Setting parameters on Druckeinstellventil 44 realized directly by passing from the working unit 45 to the pressure adjustment valve 44. After the adjustment has preferably been made to an electrically controlled pressure adjustment valve, the screw connection can either be started automatically or initiated by the operator via the activation unit 48. Upon completion of the screwing operation, specific data on the threaded connection may be stored by the processing unit 45 on the storage unit 410 where it may be retrieved for later use. In an alternative embodiment, which is not shown here, the control unit 48 may comprise a sensor unit, which determines when the tool 47 is available to tighten or loosen the screw connection, whereby the valve unit 43 is activated by the control unit. The sensor unit acts as a safety mechanism that helps to prevent operator injury.

Furthermore, the control unit 48 and the data acquisition unit 46 can be combined into one unit, whereby the valve unit 43 is activated by the combined unit. LIST OF REFERENCE NUMBERS

1) User interface

2) Electronic module

3) Filling and filter unit

4) Motor housing

5) fluid cooler

6) Pump block

7) display means

8) Remote control

9) Wired connection between aggregate and PC / server

10) PC / server

11) Cloud

12) Wired connection between aggregate and cloud

13) Cover with ventilation

14) Additional reservoir

15) fluid connection at the additional reservoir

16) fluid line

17) Fluid connection on the unit (preferably with communicating operation)

18) Printer

19) Wired connection between unit and printer

20) Dense cap

21) DAY

22) reader

23) Wireless data transfer between reader and cloud

24) Wireless data transmission between aggregate and cloud

25) Wireless data transmission between unit and printer

26) Wireless data transmission between the unit and PC / server 27) Wireless data transmission between aggregate and reader

28) Wireless data transmission between reader and TAG

29) Wired connection between unit and reader

30) Ventilated cap

31) Wireless data transmission between unit and remote control

32) Authorized group of servers

33) Authorized persons Cloud

34) Hydraulic unit

35) Fluid connection on the unit (preferably with suction operation) 36) Wireless data transmission between reader and PC / server

37) Analysis - Service

38) Web Browser - Service

39) Data memory

41) drive unit

42) Pump unit

43) Valve unit

44) Pressure adjustment valve

45) Work unit

46) Data acquisition unit

47) Tool

48) Activation unit

49) Screw connection process parameters

410) storage unit

411) hydraulic lines

412) Screwing case

413) screw connection

Claims

claims

1. Hydraulic unit (34) for a hydraulic screw system with an electric motor (4), at least one pump stage on a pump block (6) and an electronic assembly (2), characterized in that the electronic assembly (2) has a user interface (1), and the user interface (1) can be connected to at least one internal and / or external interface, wherein the interface communicates with a data cloud (11) and / or a data server (10) and programs stored by the data cloud and / or the data server in the

Electronic assembly (2) are loaded and executed by the electronic assembly (2) automated, and

Process data and / or system data from the electronic module (2) for storing and / or analyzing the data in the data cloud (11) and / or the data server (10) are automatically transmitted back.

2. Hydraulic unit according to claim 1, characterized in that the electronic assembly (2) with an internal and / or external memory for the bidirectional data exchange of programs and / or process data and / or process parameters and / or system data is connectable.

3. Hydraulic unit according to claim 1 or 2, characterized in that the user interface (1) is a tablet PC and / or a data glasses, in particular glasses for the detection and specification of information and in particular with a further input device such as a microphone for Input of commands can be combined.

4. Hydraulic unit according to one of the preceding claims, characterized in that the user interface (1) by means of magnet holder and / or screw and / or Velcro fastener and / or belt fastener attachable and from the hydraulic unit (34) is removable and externally from the hydraulic unit (34) by means of magnet holder and / or screw-on points and / or Velcro and / or belt fastener attachable and operable.

5. Hydraulic unit according to one of the preceding claims, characterized in that an externally arranged, aerated additional reservoir (14) is fluid dynamically connectable and preferably the closure lid (30) of the unit is designed with a ventilation.

6. Hydraulic unit according to claim 5, characterized in that an externally arranged, ventilated additional reservoir (14) via a fluid line (16) with the reservoir (4) is connectable, wherein the closure lid (20) is made airtight for operation.

7. Hydraulic unit according to one of the preceding claims, characterized in that the hydraulic unit (34) is connectable to sensors for providing external sensor signals arbitrary physical measurement, wherein by means of the sensor signals actual physical values are provided and this as a controlled variable and / or Control variable and / or manipulated variable and / or control parameters and / or

Additional parameters in the electronic module (2) for further processing and

Process control and hydraulic power unit control and process validation serve.

8. Hydraulic unit according to one of the preceding claims, characterized in that the hydraulic unit (34) with an external Codereader (22) is connectable, with the Codereader particular application names are received and by this in turn carried internal and / or externally stored program selections and / / or documentation content for the process and / or maintenance intervals of the

Hydraulic units and / or accessories detected and / or visualized and / or stored and / or reported.

9. Hydraulic unit according to one of the preceding claims, characterized in that the external code reader is a mobile phone with camera function and that preferably application images and / or optically readable codes the hydraulic unit (34), the server (10) and / or the cloud (11) to document the use case.

10. Hydraulic unit according to one of the preceding claims, characterized in that an external printer can be connected to the unit, which process results and / or process status and / or the process quality and / or the

Outputs program information and / or system information and / or service information and / or maintenance information.

11. A method for controlling a device according to one of claims 1 to 10, characterized in that the unit receives from the code reader to be executed programs and / or application names, by means of which an automated program start on the hydraulic unit (34) and / or user information and / or Documentation data and / or process information can be read and / or stored locally.

12. The method according to claim 11, characterized in that the external memory (10) or (11) or (22) by means of at least one special service screwing programs and / or software updates and / or instructions to the

Hydraulic unit sends for execution, by means of which an automated

Program start and / or program transfer and / or visualization for

Execution done.

13. The method according to any one of claims 11 or 12, characterized in that the hydraulic unit (34) sends logs and / or system data and / or raw data to the external memory (10) or (11) or (22), which archives (39 ) and / or analyzed (37) and / or controlled by authorized persons (32) or (33) and / or visualized via web browser by means of an online portal (38).

14. The method according to any one of claims 11 to 13, characterized in that in the cloud (11) or on the external server (10) analysis programs means

Review and / or evaluate the quality of the process results and / or an analysis model improvements based on the available data sets on Comparison takes place, which also allow statistical studies on the processes performed and their quality.

15. The method according to any one of claims 11 to 14, characterized in that for the data in the cloud (11) at least one externally assignable access authorization is provided by means of which a selected group of people receives external access to the data and / or automatically informed is, if error processes are present, and / or informed when new process data arrived.

16. The method according to any one of claims 11 to 15, characterized in that transmitted program data and / or process data and / or system data include at least one checksum or a higher valued validity certificate, by means of which secured manipulations and / or incorrect transmission of the transmitted program data and / or process data and / or system data detected and / or reported by the receiver and automatically retried by the sender in case of error.

17. The method according to any one of claims 11 to 16, characterized in that a data transmitter releases the program data and / or process data and / or system data from the own memory for deletion only after the successful transmission message.

18. The method according to any one of claims 11 to 17, characterized in that by means of a cloud online portal via an external and / or implemented on the aggregate web browser for authorized persons access to the information about necessary service intervals and / or system status messages and / or Operating conditions and / or error messages and / or security checks is guaranteed.

19. The method according to any one of claims 11 to 18, characterized in that the registered in the order name information and Schraubfallinformation is compared for plausibility and / or consistency.

20. The method according to any one of claims 11 to 19, characterized in that the evaluation of the screwing stochastic, preferably automated stochastically.

21. A method of controlling a device according to any one of claims 1 to 10, comprising the steps of:

- reading a screwdriving case into the electronics module (2);

- Verification of the screw in the electronic assembly (2);

- Loading a tightening program in the electronics module (2);

- Execution of the tightening program with the hydraulic unit (34) for a hydraulic tightening system.

22. A method for controlling a device according to claim 21, characterized in that the reading of a screw by means of a TAG reader or scanner, in particular barcode scanner takes place, wherein the screw is determined directly or indirectly via an information, preferably in the region of the screw or Object itself is arranged.

23. A method for controlling a device according to one of claims 21 to 22, characterized in that the verification of the tightening case by further information such as object data, checksum, geometry data or information, GPS data,

Directions, cons, street name, house number and / or images, which are stored in a database for the Schraubfall.

24. A method for controlling a device according to one of claims 21 to 23, characterized in that

Loading the screw program either via an existing LAN or WLAN connection and / or a mobile network connection such as via a mobile phone and this connection to a database preferably on a server and / or a cloud for transmitting data, in particular the screwing , provided.

Method for controlling a device according to any one of Claims 21 to 24, characterized in that the screwing program contains essential data, e.g. control size data, control size, screwing method to be used, screwing scheme, lubricant, hydraulic tool connected, environmental conditions such as Temperature, rain, etc. for the individual Schraubfall provides.

26. A method for controlling a device according to one of claims 21 to 25, characterized in that before or with the start of the screwing operation of the operator over all essential data and / or parameters such as the specific screwdriving program, the

Screw scheme etc. is informed.

27. A method for controlling a device according to one of claims 21 to 26, characterized in that the electronic assembly, in particular the interface detected during the screwing or when passing through the screw all essential operating parameters and processes, controlled and possibly automated or by the operator

Repeats can be performed.

28. A method for controlling a device according to one of claims 21 to 27, characterized in that a process capability detection, preferably using at least one external sensor, which at least one target variable such as a

Preload force of a screw is detected, produced or provided.

29. A method for controlling a device according to one of claims 21 to 28, characterized in that the preferably in the electronic assembly (2) detected operating parameters are preferably transferred back to a server and / or a cloud after completion of a work order in the database and in particular for generation an updated and / or self-contained tightening program can be used.

30. A method for controlling a device according to one of claims 21 to 29, characterized in that after completion of a first work order of the screw program, the actually detected operating parameters, including any changes made in the Electronic module (2) are cached and provided as a record or new screw program for other work orders.

31. A method for controlling a device according to one of claims 21 to 30, characterized in that after completion of a first work order of the screw program and the actually detected operating parameters, a clone of a tightening program for the currently available hydraulic unit and / or other hydraulic power units is provided.

32. Use of a hydraulic unit (34) according to one of claims 1 to 10 for the fluid supply, in particular with oil supply of tools, such as lifting cylinders, hydraulic screwdrivers, torque tools, yield strength-controlled tools, rotation angle-controlled torque tools or the like.