13 results about "Flexible manufacture system" patented technology

This invention belongs to the field of flexible manufacturing systems technology and discloses a path-execution cooperative control method for multiple mobile transport robots based on Petri nets. The method includes: acquiring current system state information; determining the effective starting point and first effective target based on the current task sequence information of each mobile transport robot; updating the current position index by combining historical path cache, and reusing or re-determining discrete path sequences according to preset conditions; injecting the path sequences as spatial constraints into the Petri net execution model, and constructing an executable transition binding instance set by combining the current system state, robot execution state, and resource enabling relationships; selecting and advancing compatible transition binding instances from the instance set to form execution fragments, and updating the system state accordingly, thereby achieving rolling closed-loop cooperative control of the multiple mobile transport robot system. This invention is beneficial for improving the consistency of path planning and execution processes and the efficiency of system resource coordination.

A flexible manufacturing system is provided. This system comprises a feed station at the beginning, a first production line, a second production line, an output station at the end, and a transfer device. The first production line includes several first processing machines and a first conveying mechanism. The second production line includes several second processing machines and a second conveying mechanism. The output station at the end is located downstream of the second production line. The transfer device is located between the first and second production lines.

The present application belongs to the field of multi-robot path planning, and specifically relates to a double-layer multi-robot path planning method based on state search and priority. The algorithm uses a deep-first search guided iteration framework in the upper layer to provide full-view planning, and uses a priority-based method in the lower layer to avoid obstacles. Meanwhile, the lower layer search adds a turning penalty factor in the single-robot path cost function to reduce the number of turns; combines priority inheritance and expands the time window considered when avoiding conflicts to reduce the number of conflicts; and pre-processes the map to search out narrow passages, which are regarded as mutual exclusion quantities, and only allow one robot to pass through to avoid the situation of avoiding after entering the passage. The present application has wide application value and can meet various tasks and constraint conditions, and has many practical applications in flexible manufacturing systems such as intelligent workshops, logistics centers, automated warehouses and the like. The present application has important significance for improving system efficiency and reducing system cost.

This invention discloses a method for using a central tool library based on a digital flexible manufacturing system, relating to the field of parts manufacturing and processing. It involves establishing a parts data table containing parts numbers and setting the processing program corresponding to each parts number; obtaining a production plan to generate a list of tools to be called; when the tool inventory table does not contain all the tool numbers in the list of tools to be called, a list of tools to be added is generated; based on the list of tools to be added, an inbound scheduling task is generated for each tool, and the inbound scheduling task completes the inbound of the tools to be added; based on the calling order of the tools in the list of tools to be called, preset logical judgments are performed on each tool sequentially, and based on the judgment results, an outbound scheduling task for the corresponding tool is generated, and the outbound scheduling task completes the outbound of the tools to be called. This invention ensures the completeness of the tools required for the current production plan by comparing the list of tools to be called with the tools stored in the tool inventory table for tool inbound.

A flexible manufacturing system is provided. The flexible manufacturing system includes a starting feeding platform, a first production line, a second production line, a terminal discharging platform, and a transfer apparatus. The first production line includes a plurality of first working machines and a first conveying mechanism. The second production line includes a plurality of second working machines and a second conveying mechanism. The terminal discharging platform is disposed at the downstream of the second production line. The transfer apparatus is disposed between the first production line and the second production line.

The application provides a communication unit flexible manufacturing system control method, which belongs to the technical field of control and is suitable for a communication unit flexible manufacturing system. The communication unit flexible manufacturing system comprises a controller. The method is suitable for the controller and comprises the following steps: the controller acquires sample characteristics and matches the sample characteristics with a plurality of historical product characteristics in a database; according to the matching result, it is determined whether the sample satisfies rapid processing conditions; if the controller determines that the sample satisfies the rapid processing conditions, the controller determines target product characteristics from the plurality of historical product characteristics, and acquires target processing data corresponding to the target product characteristics; the controller determines sample processing data for processing the sample characteristics based on the plurality of target processing data, and controls the communication unit flexible manufacturing system to produce the sample based on the sample processing data. The application also provides a communication unit flexible manufacturing system.

The utility model relates to machining technical field especially relates to a quick change structure reamer, including flange tool shank, set up on the HSK flange tool shank flange tool rod, set up on the flange tool rod rear end reamer head, set up on the flange tool rod front end reamer head, the rear end reamer head is fixed in the other end part of flange tool rod through a plurality of locking screw, still be provided with detection ring on the flange tool rod, the front end reamer head is set up on the reamer flange tool rod through locking nut, this product has the characteristics of quick replacement and cost reduction, is applicable to a variety of machine tool and carries out high speed reaming, when using on numerical control machine tool, machining center and flexible manufacturing system, can greatly improve processing efficiency and product precision.

This utility model relates to a loading / unloading robot for flexible manufacturing systems. The loading / unloading robot includes a frame, a vertical motion axis, a horizontal telescopic motion axis, a claw device, and a tray. The frame has a gantry frame structure; the vertical motion axis is driven by a first servo drive unit to achieve vertical reciprocating motion; the horizontal telescopic motion axis is a two-stage synchronous telescopic mechanism, with a second servo drive unit driving a first telescopic arm to reciprocate horizontally, and the first telescopic arm driving a second telescopic arm to reciprocate horizontally along with the first telescopic arm via a synchronous belt transmission device; the movement speed of the second telescopic arm is twice that of the first telescopic arm; the claw device picks up the tray, and under the drive of the vertical and horizontal telescopic motion axes, the automatic loading and unloading of the tray and workpiece in the flexible manufacturing system is completed; it has the characteristics of large load capacity, wide reach range, stable and efficient loading and unloading, as well as compact structure and small footprint; it is used in flexible manufacturing systems to realize automated and flexible production and processing of target workpieces.

This invention belongs to the field of production scheduling technology for flexible manufacturing systems, specifically relating to a Petri net-based method for rescheduling urgent orders in flexible manufacturing systems. Based on the Petri net model of the flexible manufacturing system, this invention proposes a novel rescheduling strategy; when urgent orders arrive, it proposes a method for reconstructing the Petri net model and classifying and rearranging the processing sequence. In the design of the scheduling strategy, this invention optimizes and improves the genetic algorithm. First, it uses the Tent chaotic mapping method to generate the initial population, making the population distribution more uniform; second, in the selection operation of the inheritance operation, it adopts an elite retention strategy and a roulette wheel method, selecting the better individuals based on their fitness values; in the crossover operation, it uses the POX crossover method, which can effectively expand the range of neighborhood solutions; and in the mutation operation, it uses a non-uniform mutation rate to enhance the algorithm's spatial search capability, enabling it to perform a more comprehensive spatial search.

The present application belongs to the field of flexible manufacturing system and industrial internet of things, and particularly relates to a mixed flow production intelligent execution method and system based on RFID and multiple verification; the method comprises the following steps: obtaining an identity mark and process path information and writing the identity mark and process path information into a label; reading a process instruction; reading the identity mark; obtaining a second process instruction; performing cross verification; starting an execution result verification device to perform automatic detection and generate execution result verification information; and executing an abnormality processing program when verification fails; the present application provides a mixed flow production intelligent execution method and system based on RFID and multiple verification, and aims to solve the technical problems of insufficient process instruction verification, lack of verification of execution results, risk of deadlock in abnormality processing logic and the like in the prior art.

The application discloses a kind of multi-species small-batch production workshop's flexible manufacturing system and manufacturing method, flexible manufacturing system includes general control system, production processing unit, first handling unit, vertical warehouse unit, cleaning unit, measurement unit, buffer unit, interface unit, second handling unit and storage unit, general control system is used to issue program instruction to individual unit;Production processing unit includes multiple processing units;First handling unit is used to carry parts to each unit, and carries out feeding or discharging procedure;Vertical warehouse unit is used to undertake parts to be processed and finished product parts;Cleaning unit is used to clean and dry parts;Measurement unit is used to measure part parameter;Buffer unit is used to temporarily place part to be detected;Interface unit is used to carry parts;Storage unit is used to store parts to be processed and finished product parts.By general control system centralized scheduling, realize multi-unit collaborative work, reduce manual intervention, improve production efficiency.