Siemens Aktiengesellschaft

Other

Siemens Aktiengesell Schaft

Christian Royer

Alexander Pfaffinger

Silvio Becher

Georg Baier

Lena Hupp

Daniel Craiovan

Norbert Herold

Thorsten Kemper

Petra Bauer

Tobias Hintz

A method for populating circuit boards with a quantity of required component types on at least two assembly lines is provided, wherein fixedly assigned components can be mounted on each assembly line, wherein the method includes the following steps: a) acquiring circuit board types; b) acquiring component types; c) acquiring fixedly assigned component clusters for each assembly line; d) acquiring circuit board types that can be assigned to a fixedly assigned component cluster for each assembly line; e) acquiring circuit board types that can be assigned to a cluster extension for each fixedly assigned component cluster; f) determining an assignment of circuit board types to fixedly assigned component clusters and cluster extensions; and g) optimising the determined assignment until an assignment quality exceeds a predeterminable level.

Method and device for populating circuit boards by fixedly assigned components on at least two assembly lines

Provided is a method for optimizing the occupancy of magazine spaces by tools within at least one tool magazine for a machine tool in a computer-supported manner, including: detecting a quantity of magazine spaces in at least one tool magazine, detecting a first quantity of tools which occupy at least one magazine space and the magazine spaces occupied by the tools, detecting a second quantity of tools which are to be additionally received in the at least one tool magazine, detecting the required space and optionally at least one other property for each tool, detecting a quantity of allowed magazines spaces for each tool, detecting a quantity of allowed magazine space pairs, wherein a first tool can be placed on a first magazine space of the magazine space pair, and optimizing the occupancy of the magazine spaces.

Method for optimizing the occupancy of magazine spaces by tools in a computer-supported manner

A method for optimizing the occupancy of magazine spaces by tools within at least one tool magazine for a machine tool in a computer-supported manner is provided. One or more workpieces of one or more workpiece types is produced using the tools supplied by a magazine device at a supply area, having the following steps: a-i) detecting a number of workpieces, magazine spaces, a number of tools, required space, allowable magazines spaces for each tool, allowable starting magazine occupancy, a sequence of work steps to be carried out by the machine tool on a workpiece, work step time periods required to carry out each individual work step on the workpiece, one or more supply time periods depending on the sequence of the work steps to be carried out, and j) optimizing the occupancy of the magazine spaces by tools.

Method and apparatus for computer aided optimization of an occupancy of magazine slots by tools

Provided is a method for determining set-up families for a pick-and-place line for populating circuit boards with electronic components one or more component types, the method including the following steps: detecting a predetermined or predeterminable number of set-up families; wherein a set-up family is defined as a quantity of circuit boards that can be populated on a pick-and-place line without changing the quantity of component types kept ready for population on the pick-and-place line; wherein an assignment of circuit boards to be distributed to the detected number of set-up families is optimized by integer linear programming in such a way that the sum of the numbers of component types per set-up family is minimized; and populating the circuit boards in the set-up family assigned to them.

Method for determining set-up families for a pick-and-place line for populating circuit boards with electronic components

A machine tool which is designed to carry out a specified sequence of work steps is provided. A tool and a processing time is assigned to each work step. A tool magazine is designed to keep a number of tools ready for the machine tool and includes a feeder for conveying tools from and to a transfer point for the machine tool. In a method for assigning tools to spaces of the tool magazine, a number of work steps are determined from the sequence, the respective processing time of each work step being shorter than a specified cycle time of the tool magazine. A work step is iteratively selected from the number of work steps; a previously used tool and a subsequently used tool are assigned spaces of the tool magazine; and the work step is removed from the number of work steps.

Assigning tools to spaces in a tool magazine

A method for the computer-aided optimization of tool transports for at least one tool magazine having a number of magazine locations, which is used for a machine tool for the production of one or more workpieces with the aid of the tools provided by a magazine device at a provision location, the method including: a) detecting a quantity of tools, b) determining the space required for each tool, c) detecting a quantity of occupiable magazine locations for each tool, d) detecting a permissible output magazine occupancy e) detecting the permissible target magazine occupancy, f) detecting a quantity of transport durations required for a journey of the magazine device, g) determining a partial quantity of tool transports for which a transport sequence is specifiable so that the tools are movable in the transport sequence, h) optimizing the transport sequence for the partial quantity of tool transports.

Method and device for the computer-aided optimization of tool transporting operations for at least one tool magazine having a number of magazine locations

Provided is a transmission device for feedback-free unidirectional transmission of data from a first network zone into a second network zone for evaluation at a remote application server, containing: &#x2014;a data export device which is arranged in the first network zone and is to detect the data transmitted in a network data format in the first network zone and to transform the data from the network data format into a transport data format, &#x2014;a unidirectional data transmission unit, to transmit the data in the transport data format into the second network zone unidirectionally&#x2014;a data import device which transforms the data from the transport data format back into the network data format and to transmit the data to an application server, wherein the data import device and the application server are arranged in a second network zone remote from the first zone, and to a corresponding method.

Method and control device for the processing-time-optimized production of printed circuit boards on a pick-and-place line

Provided is a method for the throughput-optimised production of printed circuit boards on least two assembly lines, wherein: the printed circuit boards are divided into clusters; each cluster is produced using a set-up system that is carried out by changeover tables that can be attached to the assembly line, each changeover table having at least one feed device for keeping ready stocks of components; and a changeover table set and an empty changeover table set comprises changeover tables with feed devices that are empty.

Method and control device for the throughput-optimized production of printed circuit boards on a plurality of pick-and-place lines

A method and a control device for the throughput-optimized production of printed circuit boards on a pick-and-place line is provided. Further provided is a method for the throughput-optimized production of printed circuit boards on a pick-and-place line, wherein: the printed circuit boards are divided into groups known as clusters; each cluster is produced using one set-up; the set-up is realized by changing tables that can be attached to the pick-and-place line, each changing table having at least one feed device for keeping ready stocks of components; a quantity of changing tables needed for each set-up is referred to as a changing table set and an empty changing table set includes changing tables having feed devices that are empty.

Method and control device for the throughput-optimised production of printed circuit boards on a pick-and-place line

Provided is a method for determining the maximum number of constant tables at table locations in one or more pick-and-place lines for the placement of components on modules using pick-and-place machines, the fittings on the constant tables being used in all the fitting families of a pick-and-place line, one fitting family including a set of modules which can be produced on a pick-and-place line with a common component fitting, wherein the maximum number of constant tables is determined by calculation using mixed-integer liner optimization on the basis of input data describing the pick-and-place infrastructure, wherein the pick-and place infrastructure can include in particular the pick-and-place lines having the pick-and-place machines, each with pick-and-place head, at least one transport system for the modules, the said constant tables, and further tables which can be variably fitted.

Method and device for determining the maximum number of constant tables in a plurality of pick-and-place lines having pick-and-place machines

Provided is a method for allocating assemblies to placement lines for placing components on the assemblies, wherein an expected production time is determined for each assembly type of the assemblies to be provided with components and for each placement line, taking into consideration each cycle time for the assembly type on the placement line and the expected number of pieces to be produced for each assembly type. The actual number of pieces to be produced arises according to a predeterminable probability distribution, wherein the possible allocations of assemblies to the placement lines are restricted by the existing infrastructure and/or by user defined specifications, and the allocation of the assemblies to the placement lines is calculated by means of an optimization method.

Method and device for allocating assemblies to placement lines

Provided is a method for determining optimum batch sizes for the placing of components on circuit boards within an assembly line, wherein a set of circuit board types to be produced on the assembly line within a specified planning period is specified; a number of circuit boards to be produced is specified for each circuit board type; the number of circuit boards per circuit board type forms a set that is to be divided into equal-sized subsets, also referred to as batches, which are production orders that are produced at regular intervals during the planning period; the batch size of a circuit board type is equal to the number of circuit boards in a subset; the specified circuit board types are divided into a set of clusters, wherein a cluster and its associated set-up includes a set of circuit board types which can be produced with the associated set-up.

Method and device for determining optimum batch sizes

Provided is a method for populating printed circuit boards, which includes the steps of registering jobs in each case relating to the population of a number of printed circuit boards of a printed circuit board type with components of predetermined component types, assigning printed circuit board types of the registered jobs to a predetermined number of fixed set-up families, optimizing the assignment in such a way that a characteristic number relating to all the pick-and-place lines of the pick-and-place system is optimized as far as possible, and populating the printed circuit boards on one of the pick-and-place lines by using one of the fixed set-ups.

Method and system for populating printed circuit boards

Provided is a method for allocating assemblies to placement lines for placing components on the assemblies, in order to achieve a minimum variation in components with a predefinable maximum capacity utilization in terms of time for each placement line, wherein the component variation is determined as the sum of the number of component types required on the placement lines and an expected production time is determined for each assembly type of the assemblies to be provided with components and for each placement line, taking into consideration each cycle time for the assembly type on the placement line, each reset time, the degree of utilization for each line and the expected number of pieces to be produced for each assembly type.

Method and apparatus for assigning assemblies to component fitting lines

Set-up families with associated set-ups are provided for populating printed circuit boards by means of a pick-and-place line. Printed circuit board types are associated with each set-up family and component types are associated with each set-up, such that a printed circuit board of a printed circuit board type in a set-up family is populated on the pick-and-place line by means of components of the component types associated with the set-up. Stocks of components of the component types of a set-up are provided by means of set-up tables on the pick-and-place line. A method for populating the printed circuit boards includes the steps of detecting printed circuit board types of which printed circuit boards are intended to be populated with components of associated component types, of associating detected printed circuit board types with a predetermined number of set-up families, and of optimizing the association operation with respect to a predetermined criterion.

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Ottobrunn, Germany

Christian Royer