JPH0116620B2 - - Google Patents

Description

[Detailed description of the invention]

The present invention relates to a production system for mechanical components,
In particular, it relates to complex production systems that adopt the concepts of modularization and compounding that are suitable for high-mix, low-volume production. With the rapid development of industrial products, consumers are no longer satisfied with standardized products and are increasingly seeking unique products. As a result, the requirements for the mechanical components that make up these products or the machine components that make up the production equipment for producing these products have changed to a wide variety, and as a result, the number of high-mix, low-volume industrial products has increased. The proportion of manufactured goods has continued to increase. It has come to be said that the future economic development of industrially advanced countries depends on how efficiently and economically these high-mix, low-volume products can be produced. In order to realize high-mix, low-volume production, several systems have been proposed in various countries. However, these systems mainly relate to processing and manufacturing systems for parts within the production system, and one of their characteristics is that the contradiction between specialized machinery and general-purpose machinery regarding machining is overcome by intermediating the parts, that is, the workpiece conveyance line. Specifically, it basically inherits the production line of conventional transfer machines, but adds a certain degree of flexibility to the tools and processing heads on the processing machine side at each station. In some cases, the workpiece is frequently moved between each processing station until the entire processing is completed. This requires work such as traffic control when transporting workpieces in a so-called unprocessed or semi-processed state on the transport line. Moreover, the above conveyance line is
Since it is used as a conveyance path for not only workpieces but also tools and machining heads, a complex configuration is required for signal processing for system operation between each processing station and the conveyance path. In another example, a machining center is appropriately placed as each station on the side path of the conveyance line,
Here, a method has been proposed that attempts to process multiple processing steps. Although this method has achieved certain results in terms of consolidating the machining process, the current configuration of machining centers is such that workpieces are assembled on pallets for machining. Grinding of common elements forming parts,
In processing fields such as gear cutting, gears are manufactured offline using other conventional processing machines. Further, in this system, the machining center as a processing machine is itself a complete and fixed mechanical device, and even if a part of it breaks down, the machining center itself becomes unusable. For example, even if it is determined that the spindle head is malfunctioning, it is not easy to replace it, and the machining center remains idle for at least several days. In addition, it is rare that the machining capacity of each machining center is always utilized to its maximum, and from the perspective of the entire machining system, some of the potential machining capacity of each machining center is always idle. . Furthermore, in this method, if some assembly or inspection processes are required during machining, it is almost useless and the workpiece must be moved to another station, as in the case of special machining mentioned above. The object must be moved and necessary offline processes added. The problems pointed out above still exist today, and the current direction of technological development is to use computers to deal with the above-mentioned ``increasing complexity in signal processing,'' which is mainly a software problem. Regarding the latter point, there is a trend toward complete separation of machining and assembly processing, and an increase in the types and functions of machining centers aimed at increasing the efficiency of machining. Regarding the conveyance line, flexible conveyance systems such as free flow systems have also been proposed, and some machining centers have diagnostic systems that detect failures early and Techniques such as accuracy checks are still being developed, although they are still in their infancy. Although this direction of technological development is in itself producing important technological results, the problem is that the relationship between each process of processing and assembly and the workpiece has to be subdivided into process steps and the resulting transportation. At the same time, this is reflected not only in the complexity of the manufacturing system, but also in the process of creating technical information and management information related to the execution of the processes involved in each processing process. This complicates the configuration of the system (referred to as an information processing system in this application). As a result of considering the points mentioned above, the purpose of this application is to adopt the concept of compositing in various processes in the manufacturing system of machine components as a direction for production system configuration, to combine and consolidate processes,
Ideally, this is a production system that performs all processing at the same time and in the same place, and also realizes the multifunctionality of production equipment and the ease of changing the same functions in order to flexibly respond to changing target products. The purpose of this project is to adopt the concept of modularization and propose a new composite production system that combines both of these combinations and modularization. Before going into the description of specific embodiments, the technical concepts of compounding and modularization in the production system, which will be cited in the following description of the present invention, will be explained. Regarding compounding: Perform several processes in the processing, assembly, and inspection processes in the same place as much as possible. This makes it possible to reduce the number and time of transfer for each processing step and for each assembly step. Also, performing some different types of processing (processing processing and assembly processing) at the same location. To be more specific, some of the similar machining functions correspond to those of current machining centers, but they can be used for both round and square parts by simply changing tools and working units at the same location. This function enables machining. Further, the different processing functions include performing processing work and assembly work at the same location. This means that some temporary assembly is performed in the middle of the manufacturing process, and some machining and intermediate inspections are performed in the same location during the assembly process. Regarding modularization, in terms of hardware, the constituent units are standardized and the necessary units are selected from a group of units that can be easily assembled and disassembled to provide different functions within one mechanism. In terms of software, it is to configure a manufacturing system whose purpose is to organically control the system by selecting and combining operational programs. Specifically, when load fluctuations are extremely large, such as an increase in production volume or product types, the system layout is basically changed and its mechanisms and functions are changed, or the system scale is reduced or expanded. In addition, if the load fluctuation due to an increase in production volume or a change in processing specifications is small, the system layout will not be changed and processing will be done within the multifunctionality of the mechanism. Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram illustrating the basic configuration of a complex production system that produces machine components from metal materials in an integrated system, in relation to the "flow of goods" and the "flow of information." Looking at this diagram from the perspective of "information flow", information regarding the machine components requested by the customer indicated by the product specifications 101 is collected by the information processing system SS1, the production control system SS2, and the complex manufacturing system SS3.
It is realized through three subsystems: On the other hand, from the perspective of "product flow," materials pass through the complex manufacturing system SS3 and become mechanical components as inspected products. In the information processing system SS1, the technical aspects of the product specification 101 are sequentially materialized in the order of product design, process design, and work design, as will be explained in detail later. It is given to the product manufacturing system SS3 as a group of command information. In addition, the system SS1 also includes a production plan 1.
05, the management aspects of the product specifications 101 are sequentially materialized in the order of load planning 106, layout planning 107, and schedule planning 108, and each of these management information is used as a second group of command information called production schedule 110 for system SS3 and production. Given to control system SS2. Further, from the production control system SS2, other command information called production control 111 is given to the system SS3, and feedback information called production results 112 is sent from the system SS3 to the system SS2. Figure 2 shows the relationship between the block diagram shown in Figure 1 and databases D and B.
It is divided into three stages: control and implementation. In the planning stage, information is processed to create the production process information and production schedule information required in the implementation stage, according to the customer's product specifications, quantity, delivery date, etc. The content of the control stage is that in the process of operating each production facility of the complex manufacturing system according to command information created by the information processing system, production may be delayed due to delays in purchased products, occurrence of defective products, malfunction of equipment or machinery, etc. When things are not progressing as planned, we carry out control operations such as schedule management, quality control, and production maintenance in order to quickly restore production to normal. Furthermore, the implementation stage is carried out in a manufacturing system consisting of machines and equipment such as machine tools, transport equipment, and warehouses. A manufacturing system in a complex production system is referred to as a "complex production system." The reason why it is particularly called "complex" is because the machines and equipment in this manufacturing system are designed to consolidate processes as much as possible and to complicate processing. This composite manufacturing system consists of a material processing mechanism, a composite cutting mechanism, a composite assembly mechanism, a product inspection mechanism, and a high-power laser oscillator, as well as a transfer device, buffer,
It consists of incidental equipment such as material handling equipment. Information about the production process and production schedule from the information processing system in the planning stage is input into this complex manufacturing system as command information, and each mechanism in the complex manufacturing system is operated according to the instructions, and the materials input as objects are , the purchased parts are processed according to each process, and then shipped as final products. In addition, databases used in complex production systems collect and analyze data obtained during the system development process, and are used to collect and analyze data obtained during the system development process.
Assembly conditions etc. are organized and filed. Further, even in the operation stage after the system is installed, a large amount of data other than the above data is filed in the databases D and B. Then, when the complex production system starts operating, this database will be planned,
Use and update at each stage of implementation and control. For example, data shown in Table 1 below is filed in the database DB.

【table】

[Table] FIG. 3 shows the block diagram of FIG. 1 in more detail. The figure shows that data files of databases D and B are referenced at each design stage and each planning stage. FIG. 4 is a configuration diagram of a production factory in which a complex production system is formed, consisting of a production planning office and a manufacturing site. In the production planning room, a central computer processes technical information such as product design, process design, and work design, management information processing such as load planning, layout planning, and schedule planning, and processing data checks. The manufacturing site consists of various mechanisms such as a material processing mechanism, a composite cutting mechanism, a composite assembly mechanism, a product inspection mechanism, and a laser processing mechanism, which are controlled and controlled by the manufacturing control devices (1) and (2). The manufacturing control device is given command information created in the production planning room to control each mechanism and performs production control based on feedback information from each mechanism. Among each mechanism, the composite cutting mechanism and composite assembly mechanism have a lower hierarchical structure, and at the bottom of the hierarchy there is a functional unit (UNT) (for example, a spindle head), which can be used to customize the functional unit according to the purpose. A combination work cell (CEL) is constructed with the necessary types and numbers (Figure 17 shows the relationship between cells and units). Next, a work combination (CMB) is formed by combining work cells, but work combinations are not fixed combinations of work cells, but work cells are created at the operation stage in response to the fact that processing methods differ depending on the target workpiece. be configured by selecting and combining them as appropriate. If the number of work cells in these work combinations is set according to the purpose, the number of work combinations will be within the range limited by the number of work cells. The space formed by the work combination is called a work space. Further, a collection of work cells limited to each purpose is called a work set. A structure that integrates several work sets, a control device, and its peripheral equipment such as a conveyance device is a mechanism called a compound cutting mechanism or a compound assembly mechanism. Control method of complex manufacturing system Command information such as production process information and production schedule information created by the information processing system is given to the control system within the complex manufacturing system. The following conditions are required for this control system: (1) The control system must be able to control and operate the manufacturing equipment within the complex manufacturing system. (2) It is modularized with highly independent functions. (3) It must be possible to operate the modularized functions individually. (4) The control system shall have a multi-tiered system configuration that combines and connects the above modules. (5) Online, real-time control. (6) Control between each layer is configured using an open loop, and command information is transmitted only in one direction from TP to Bttm. (Feedback is accomplished through a control system), and so on. The hardware configuration of a control system that satisfies the above (1) to (6) is shown in FIG. 5, and the software configuration is shown in FIG. To explain Fig. 5, command information such as production process information and production schedule information created by an information processing system is sent to the manufacturing control equipment (1), (2) online or via a storage medium such as M/T (magnetic tape). Load into. This command information operates the material processing mechanism, composite cutting mechanism, composite assembly mechanism, product inspection mechanism, laser oscillator, transport mechanism, etc., and converts the input materials into the desired product. The control system has a four-level hierarchy, with the lowest level 4 being the unit management device, which is the smallest unit of modularization, level 3 being the cell management device, level 2 being the mechanism management device, and the highest level 1 being the manufacturing device. These are management devices (1) and (2). Each of the above-mentioned management devices will be explained below. Unit management device When replacing a unit that has an actuator such as a motor or cylinder, power and signal transmission becomes an issue. In other words, since the units to be replaced have different functions and performances (for example, a spindle head unit and an NC table unit in a compound cutting mechanism), their actuators and detectors are naturally different, and the control methods are also different. In such cases, if the control device that controls the motor and cylinder is taken out of the head, separate wiring and piping will be required for the actuator and detector for each different head. Incorporation and external power and signal connections are kept to a minimum, allowing common electrical wires and piping to be used even if the unit is changed. The mechanisms that hierarchize up to the level 4 unit management device are a composite cutting mechanism and a composite assembly mechanism, and the level 4 unit management device is composed of a small-scale microcomputer. Cell Manager Level 3 cell manager controls the work cells of a complex cutting or assembling machine. That is, it controls and synchronizes several unit management devices in the cell, or performs fault diagnosis to manage the functions of the cell. Mechanism management device Level 2 is a manufacturing management device that controls and controls each mechanism in the complex manufacturing system, namely the material processing mechanism, complex assembly mechanism, product inspection mechanism, transport mechanism, and laser oscillator. Different controls and controls are applied depending on the situation. Each management device has strong independence and controls and controls the mechanisms under its control even when it is alone. Manufacturing control device Located at the top of the hierarchical structure, it distributes command information to each mechanism control device and maintains synchronization. It is also equipped with an output device such as a display device, an input device such as a keyboard, and a database as required, and is capable of interfacing with humans and managing data. Next, the software configuration of the control system will be explained with reference to FIG. There is a software configuration corresponding to the hardware configuration of a control system, and the software configuration is also modular like the hardware configuration. It also has a high level of independence, allowing it to perform its functions independently even if it is separated into modules. In each block in the figure, a hardware device and the name of a program built in that device are written. Next, the software contents corresponding to the devices at each level will be explained. Software contents of the unit management device Not all units have a unit management device, but the unit management device is installed in units that have actuators such as motors and cylinders, and units that do not have actuators but have a large number of detectors. Built-in. Particularly, when automatically replacing a unit having an actuator and a detector, a unit management device is built in due to the number of wiring and piping mentioned above. Management content also differs depending on the function of the unit. For example, the control and control content is different between the spindle function and the feed function, and therefore the software content is also different. Also, linear interpolation, circular interpolation, etc. are performed in a distributed manner. Software contents of the cell management device Distributes data to the unit management devices and synchronizes each unit using the completion signal fed back from each unit management device. It also receives feedback information such as inspection data and failure diagnosis data, and depending on the content of the information, decides whether to process it at this level or transmit the information to a higher level. The cell management device contains a control program and a control program that perform the functions described above. Software contents of the mechanism management device The software contents of the mechanism management device differ depending on each mechanism, such as raw material, composite cutting, composite assembly, product inspection, transportation, laser oscillator, etc. In particular, since the composite cutting mechanism and composite assembly mechanism have a hierarchy of cells, units, etc., the mechanism management device functions like a DNC. In other mechanisms, the management device acts like a CNC. but,
Each management device contains a control program and a control program, although the contents are different, and controls the mechanism using command information and also controls the mechanism using feedback information. Software content of the manufacturing control device The manufacturing control device is divided into two types: one for the raw materials management device and the other for other mechanisms. This is because the material processing and other processing cannot be time-aligned, so the material processing may be made independent. Therefore, the manufacturing control device (1) for processing raw materials only needs to distribute command information to the raw material management devices. It also receives information such as completion signals, material inspections, and failure diagnosis as feedback information from the material management device. The manufacturing management device (2) distributes command information to each mechanism management device for complex cutting, complex assembly, transportation, laser processing, etc., and receives feedback information from the control program and each mechanism for synchronization, such as completion signals, product inspection, and failures. The main program is a control program that receives information such as diagnosis and performs different processing depending on the type of information. In addition to the main programs, there are various programs for man-machine interfaces and programs for updating databases. FIG. 7 shows the "flow of goods" within the complex manufacturing system. Below, the flow of objects within the composite manufacturing system and the delivery method between each mechanism will be explained sequentially from the left side of the figure. Receipt of materials When the ordered materials arrive, the following procedures are required to receive them. B. In order to confirm that the ordered materials are correct, carry out an acceptance inspection according to the order specifications. (b) Assign a code to each material. Write barcodes with a laser for coding. Then register the code in the database. C. Materials that have been coded and registered are separated into raw materials and purchased parts and stored in their respective warehouses. Register the relationship between the storage location and the code in the database. Material cutting Materials stored in the material warehouse are taken out as needed. Based on the shape of the material, it is determined whether or not to cut the material, and if the material is not to be cut, the material cutting is bypassed. When cutting, laser cut the material into the specified shape. A new code is attached to the cut material and registered in the database, and if a defective product occurs during cutting, the defective product is removed from the material flow. The process is as follows. Material processing,
If a defective product occurs during pre-processing, combined cutting, combined assembly, or product inspection, it is removed from the flow of goods, just as in the case of cutting. Material processing Checks whether the part is targeted for material processing, and sends materials that will not be processed directly to pre-processing. If material processing is required, send it to heating. Transportation from material cutting to pre-processing or heating is
This is done using pallets placed on a trolley. The material is heated to the appropriate temperature through heat treatment, and then transferred to the forming material processing. In material processing, materials are processed into specified shapes and dimensions,
Store it in the material stockyard. In material processing, batch processing is performed for heating, cooling, etc. If necessary, materials are sent from the material stockyard to pre-processing using pallets and trolleys. Pre-processing Perform pre-processing such as roughing round parts, center hole drilling, or reference surface machining for square parts before sending them to the work station. Work Station At the station, humans set up materials in the chuck. The material attached to the chuck is placed on a trolley and sent to the composite cutting mechanism. Complex Cutting The complex cutting mechanism has two work spaces, and the trolley can access either work space via the material handling device. It is also possible to import chucks and workpieces directly from the station. Additionally, purchased parts such as bolts and dowel pins for fitting are taken out of the parts warehouse and loaded into the complex cutting mechanism. The input material is subjected to complex cutting processing, finished to the specified dimensional accuracy, and then transferred to the buffer station as a completed part. Buffer Station The buffer station, located at the junction between cutting and assembly, can temporarily store 3 to 4 parts. When the part is on the buffer station, it is also in the chuck state. When the material handling device on the assembly side grabs the parts on the buffer station, it anti-yucks and takes the parts onto the assembly magazine. Import is done in the order of assembly. The buffer station covers the difference between cycle tiles of compound cutting mechanism and compound assembly mechanism, and has an anti-yuck device. Complex assembly mechanism Processed parts received from the buffer station and purchased parts taken out from the parts warehouse are placed on assembly cassettes and transported to the assembly mechanism using a transport trolley. Do the assembly work here. It is sent to the work station as an assembled product in an assembly cassette. Work Station The assembled products from the assembly mechanism come to the work station in a vertical position convenient for assembly. Since this posture is inappropriate for product inspection, the posture is changed and transferred from the assembly magazine to the product inspection pallet. At work stations, in addition to setup changes, oil injection,
There are preparations for inspection, such as belt hanging, and visual inspection, but these must be done by humans. The assembled product that has been prepared for inspection is sent to the product inspection facility. Product Inspection Mechanism Performs performance inspections of assembled products placed on product inspection pallets. Finished products that pass the inspection will be shipped with an inspection report attached. The above shows the "flow of goods" within the complex manufacturing system. It can be seen that in this system, there is no reversal of the "flow of goods". In other words, in order to increase productivity through flexibility and speed, it is desirable not to go against the flow of goods, and this is the reason why assembly work is combined in the cutting mechanism. Each mechanism is combined so that objects do not move back and forth between each mechanism. Therefore, there is a master-slave relationship between the functions of each mechanism, and in a compound cutting mechanism, cutting and grinding are the main functions, and assembly, inspection, etc. are the secondary functions. This relationship is shown in Figure 8 for cutting, assembly, and product inspection, where the "flow of materials" is unidirectional, and each mechanism has a main process and a sub-process. The main and sub processing sequences within each mechanism can be changed at random. We will call this type of system Mai-Ami (Miami). In Figure 8, M and m are
machining, A, a is Assembly and I, i is
Show inspection. Figure 9 1 shows an idealized production process of the combined cutting and combined assembly mechanism, and Figure 2 shows the conventional processing,
The assembly and inspection processes are shown, and FIG. 3 further shows the assembly and inspection process as a subordinate function in the processing process, and the processing and inspection process as a subordinate function in the assembly process. FIG. 10 is a diagram showing the layout of a complex production factory, and FIG. 11 is a bird's-eye view of the production factory arranged and formed according to the same layout. In FIGS. 10 and 11, LSR is a high-output laser oscillation device, and laser beam LSRB is a raw material converting device 152 for processing raw materials and a composite cutting mechanism 1.
61. Reference numeral 153 is a shelf for storing materials that have been cut by the laser beam LSRB. The material processing mechanism 151 also includes an induction heating furnace 154, a composite forming mechanism 155, and a material conveying device 156 as a forging section. The compound cutting mechanism 161 has five parts indicated by M1 to M5.
It is formed by one work cell. Unit exchange for each work cell is performed from the unit stocker 162 shown above to the unit automatic exchange device 168.
1, performed via U2. The automatic workpiece exchange device 163 and the transfer trolley 1 supply the workpieces to each work cell.
64,164. After the work W is cleaned at the cleaning station ST, it is loaded onto the transfer cart 164 at the material handling device 165. At work station ST, humans manually set up materials. The prepared material is directly delivered to the composite cutting mechanism 161 by the material handling device 166, or taken into the composite cutting mechanism 161 by the transfer device 167. The compound cutting mechanism 161 uses an automatic unit exchange function to perform processing such as cutting, grinding, partial assembly (fitting, welding, etc.), laser processing, cleaning, and part measurement, and then places the parts on the buffer station 171 as completed parts or partially assembled parts. Put the whole chuck on. The parts on the buffer station 171 are taken into an assembly cassette 173 by a material handling device 172. At this time, purchased parts such as bolts and nuts are transferred to the purchased goods stocker 1 by the material handling device 174 in the same way as processed parts.
75 to an assembly cassette 176 in the order of assembly and sent by a transfer device 177 to assembly work spaces A1 and A2. A station ST on the way is a loading confirmation station for checking the above-mentioned parts and purchased items loaded in the assembly cassette 176. The composite assembly mechanism 181 performs assembly operations such as press-fitting, charging, screw tightening, and temporary fixing while automatically exchanging assembly tools. MLSR is a laser oscillation device with relatively low output, and the assembly work space A1
It supplies a laser beam LSRB to the machine and is used for temporary fixing. Furthermore, in the composite assembly mechanism 181,
A tool stocker 182 for supplying various jigs and tools required for assembly work is arranged, and the materials are loaded into an assembly cassette 184 by a material handling device 183 and transferred to the assembly work space A1 or A by a transfer device 185.
It is now being sent to 2. At the work station ST, as described above, the posture of the assembled product is changed from its assembly cassette to the product inspection pallet 192 and set up in a posture suitable for transfer inspection. Reference numeral 191 denotes a product inspection mechanism, which inspects whether or not the product satisfies the specification performance based on the product specifications. Examples of inspection items include installation dimensions,
Runout, vibration, noise, temperature, torque, lost motion, transmission efficiency, etc. are automatically inspected. Products that pass the product inspection are shipped with an inspection slip attached. 201 is a manufacturing control device. FIG. 11 shows each mechanism arranged in accordance with the layout explained in FIG. 10, and corresponding parts are labeled with the same symbols and numbers. In the figure, the laser beam LSRB is connected to the distributor DLSRB and polarizer along the way.
Directed downward via PLSRB. A laser head HD is attached to the tip of the beam guide BG, which is arranged vertically in the figure, and the vertical position of the head HD is configured to be controlled arbitrarily, so that it can be used when replacing units, etc. Care has been taken to avoid interference with the laser beam guide. 12 to 15 show each mechanism 151, 161, 181, 19 forming each mechanism in FIG. 11.
1 is an enlarged detailed view of the main part of FIG. In FIG. 12, a material processing mechanism 151 inputs a material, processes the material, and outputs it as a target product to the next process. The input/output and internal processing within the mechanism will be explained below. B. Items input to the material processing mechanism: Materials purchased in fixed lengths such as plates, bars, and cast products. (b) Processing within the material processing mechanism; (a) Laser beam (20K.W. or 5K.W.)
Cutting bars and plates (for cutting plates, the laser head has an NC function) and quenching. (b) Precision multi-axis forging, disk ring forming, super free forging, hot isostatic powder forming. (c) Heat treatment such as quenching and refining. (d) Pre-processing such as center processing and reference surface processing. (e) Sub-processing such as setup, inspection, cleaning and cooling. C. Output of the raw material processing mechanism; (a) Boards and bars cut to size. (b) Processed materials such as forged products and molded products. (c) Pre-processed products that have been subjected to treatments such as quenching and refining. The output from the material processing mechanism 151 is sent to the work station ST shown in FIG. 11. FIG. 13 is an enlarged view of the main parts of the compound cutting mechanism 161, which has a modular structure and can be applied flexibly and quickly to parts in the field of high-mix, low-volume production.
62. Since it is equipped with an automatic unit exchange device 168, it is possible to carry out a variety of processing, and it is possible to consolidate processes and achieve compounding. B. Input to the compound cutting mechanism; (a) Materials and shapes output from the material processing mechanism. (b) Purchased parts such as bolts and knock pins. (b) Processing within a complex cutting mechanism; (a) Complex cutting processes such as cutting, grinding, and deburring. (b) Assembly such as lamination processing and laser welding. (c) Alteration processing such as surface hardening using a laser. (d) Chip cutting with medium power laser. (e) Additional work that does not change the shape, such as cleaning and parts inspection. (The laser head is suspended from the ceiling and is fixed during processing.) Output from the compound cutting mechanism; (a) Processing such as cutting and grinding, additional processing such as cleaning and component inspection, and the specified Processed parts finished in shape and accuracy. (b) Partial assembly after one assembly has been completed. (c) Part inspection data. The output from the composite cutting mechanism 161 is sent to the composite assembly via the buffer station 171 in Fig. 11. Figure 14 is an enlarged view of the main parts of the composite assembly mechanism 181, and as shown in the figure, two assembly work spaces A1 and A2 are formed, and the respective beds B1 and On B2 are side frame F1 and horizontal frame F.
A frame structure such as 2 and F3 is formed, and assembly work heads h1 and h2 are attached to the upper and side parts. B. Input into the complex assembly mechanism; (a) Parts and subassemblies processed by the complex cutting mechanism. (b) Purchased parts such as bolts, nuts, bearings, O-rings, etc. (c) Part inspection data. (b) Processing within the complex assembly mechanism; (a) Assembling and assembling such as charging, press-fitting, and screw tightening. (b) Processing such as hole drilling and temporary fixing using a medium-power laser. (c) Assembly inspection by measuring press force and screw tightening torque. C. Output of a composite assembly mechanism (a) Machine components that have been assembled, such as gear boxes and spindle heads. (b) Assembly inspection data. FIG. 15 is an enlarged view of the main parts of the product inspection mechanism 191, which automatically performs the final performance inspection of assembled products. In the figure, a spindle head 192 as a completed assembly is mounted on a table unit 193 on a structural unit 198, and a transmission unit 194 and a load unit 195 can be accessed on both sides of the spindle head 192. 196 is a sensor unit, and 197 is a measurement unit. B. Input to the Product Inspection Organization: (a) Machine components that have been assembled. (b) Part inspection data and assembly inspection data. (b) Processing within the product inspection facility; (a) Measurement and inspection of dimensions, shape, runout, vibration, noise, temperature, torque, lost motion, transmission efficiency, etc. (b) Creation of reference data for diagnosing causes of defects. C. Output of the product inspection mechanism; (a) Completed machine components such as gear boxes and spindle heads. (b) Inspection report. (c) Reference data for diagnosing the cause of defects. FIG. 16 shows a module space (indicated by a two-dot chain line) in each mechanism 161, 181, 191, and the size of a workable part, that is, the workable volume is called a module space. On the other hand, the assemblable space is also set to have the same value at the subassembly stage, paying attention to the fact that the dimensions are similar to the dimensions of the machined parts. This also applies to the inspection mechanism 191. For reference, according to a PERA survey, the dimensions and weight ratios of all conventionally machined parts are as follows. Maximum dimension ^400mm3 or less is 90% ^200mm3 or less is 70% Maximum weight 100Kg or less 93% 25Kg or less 80%. With reference to these data, the module space in this embodiment is set to 300 mm ³ . Fig. 17 shows one machining work cell CEL in the compound cutting mechanism and the functional units that make up the CEL, and shows, from the bottom, bed unit U1, saddle unit U2, and base unit U.
3. Spindle unit U4, arm unit U
5. Assembled with tool magazine unit U6 etc. Such a relationship between a work cell (referred to as an assembly work cell in an assembly mechanism) and each functional unit is also adopted in an assembly mechanism and an inspection mechanism. (However, the assembly mechanism, the unit stocker in the inspection mechanism, and the automatic unit exchange device are not shown in FIG. 11.) FIG. 18 shows an example of the grinding unit. The functional unit, which is the minimum unit of the machining work set, will be explained here. B. Structural unit A unit that has an axis movement function and a rotation function in a machining work cell (for example, Fig. 17), and includes a base unit, saddle unit, and bed unit. Among these, except for the data unit, the same units can be connected to each other. By replacing it with one of a different size, the axis movement distance can be expanded, the volume of the machining work space increases, and machining that can accommodate a variety of product specifications is possible. B. Work unit In addition to a spindle unit with a rotating function and an NC table unit in the processing work cell, there is also a grinding unit (Fig. 18) dedicated to external grinding and equipped with a grindstone. It also includes composite processing units used for alignment processing. C. Auxiliary unit A chuck used for reversing machining tools and workpieces and measuring parts in the machining work cell;
There is an arm unit that exchanges measurement axes and a magazine unit that stores them. In the present invention, since a single machining work cell cannot perform the necessary and sufficient functions for various types of machining (for example, mounting tools and workpieces at the same time), an example in which three machining work cells are arranged in a T-shape is shown below. Shown in Figure 19. Here, a processing work space S is formed in the center of the three work cells C ₁ , C ₂ , and C ₃ . Figure 20 shows an example using a table processing work cell.
Shown in (1), (2), (3), and (4). In FIG. 21, examples using three processing cells are shown in (1) and (2). 1 indicates a case where L/D is large, and 2 indicates a case where the shaft end is processed. FIG. 22 shows the combined processing in three processing work cells, where (1) shows the combined processing and (2) shows the simultaneous processing. FIG. 23 shows a symmetrical type using four processing cells. FIG. 24 shows a staggered arrangement using five cells, in which case two processing work spaces are formed. FIG. 25 shows an example of an assembly work combination. U1 is a head unit, U2 is a slide unit, U3 is a magazine unit, U4 is a column unit, and U5 is a base unit. The functions of the composite manufacturing system described above are summarized as shown in FIGS. 26, 27, 28, and 29. (Excluding the material processing mechanism) The twenty-sixth section shows the functions of the cutting and assembly subsystem in a hierarchical manner.The functions required of this subsystem are flexibility and speed, and flexibility is modular. Streamlining and speeding up are achieved through the basic function of compounding. Further, modularization is embodied in block 251, which requires multifunctionality and the necessary functions of energy and information transmission. Furthermore, compositing is embodied in block 252, which is conditioned by the necessary functions of a compositing process and a transport method. Block 253 describes other conditions that support rapidity, which consist of highly sophisticated two functions: element and non-cutting time reduction, and highly automated two functions: automatic diagnosis and control. ing. The technical concept of advanced functions and advanced automation that supports this speed will become even more rapid as new technology advances in fields such as drive systems, tool systems, accuracy compensation, and failure diagnosis. There is a relationship that increases the degree of contribution to sexuality. FIG. 27 is a functional analysis diagram of the composite cutting mechanism, which consists of a main function, which is a processing function, and subordinate functions, which are an assembly function, a conveyance function, a storage function, and an additional function. Each function is block 254, 255, 256,
257 and 258. FIG. 28 is a functional analysis diagram of the composite assembly mechanism, which consists of an assembly function as a main function, a processing function as a subordinate function, a transport function, a storage function, and an additional function. Each function is block 259, 260, 261, 2
62 and 263. FIG. 29 is a functional analysis diagram of the product inspection mechanism, which consists of an inspection function, a conveyance function, a storage function, and an additional function.
5,266 and 267. FIG. 30 is a flowchart showing the processing steps within the composite manufacturing system. This flowchart includes each control and control program in the software configuration diagram of the control system shown in FIG.
These flowcharts further illustrate the flowcharts shown in the diagrams, and make it easier for experienced system programmers to create processing programs related to the manufacturing system of the present application based on these flowcharts. . In step 1 (hereinafter referred to as STP) in FIG. 30, information regarding required materials is provided. Then, in STP2, the material storage status is checked and, if necessary, an inquiry is made via the database to see if there are any corresponding materials in the material inventory. Necessary materials are specified from among fixed-length plates, bars, cast products, etc. Materials supplied by STP2 in STP3
It is determined whether cutting is necessary or not, and if necessary, the material is cut using a laser at STP4. At this time, the shape and dimensions of the material are matched to the database. Then move on to STP5.
Also, if cutting is not required, proceed directly to STP5.
The meaning expressed by the word ``move'' here is not only when the processing program progresses by a simple step, but also when the type of the processing program is changed, or when the processing object changes spatially as an ``object''. It also means movement. Now, STP5
Then, processing is required, so the next step is STP6.
Next, heat treatment is performed in a heating furnace. Then, in the next step, STP7, the material is processed. Next, the process moves to STP8, where various inspections are carried out on the processed products that were carried out at STP7, and if the product fails, it is
Move to STP9 and check the possibility of reprocessing.
If YES in STP9, the process moves to STP10, where a change in processing conditions is instructed, and the process moves to STP6 again. If NO in STP9, the product is moved to STP11 to investigate the cause of the defect and removed from the product flow line. On the other hand, if the product passes STP8, Figure 30 2
Moving to STP12, it is checked whether pre-processing is necessary. Then, if necessary, the process moves to STP13, where center machining in the axial direction and reference surface machining opposite to the square object are performed. And it will be revealed at STP14.
If no pre-processing is required at STP12, it will be sent directly to STP14. The processing within the material processing mechanism is completed at the above STP1 to STP14. Next, it is sent to STP15 for complex cutting. this
Machining in STP15 is supported by subsystems such as tool preset check system, automatic unit exchange, repalletization, failure/accuracy diagnosis, and adaptive control. Processed parts undergo component inspection at STP16. At this time, information from databases D and B regarding component inspection is compared with information from various measuring instruments for inspection. If the test fails
Move to STP17 and check whether reprocessing is possible.
If YES, the process moves to STP18, where a change in cutting conditions is instructed, and the process moves to STP15. If reprocessing is not possible, the product moves to STP19 where the cause of the defect is investigated and removed from the product flow line. If the test passes STP16, the process moves to composite assembly STP20 in Figure 30. The various mechanisms and subsystems that carry out the operations are encircled by blocks on the right side to support assembly operations such as press-fitting, charging, and screw tightening performed in STP20.
When STP20 is completed, the assembly moves to STP21 and is inspected, and if it fails, it is checked at STP22 whether it can be reassembled. And when YES
Moved to STP23 and was instructed to change the assembly conditions again.
Move on to STP20. If NO in STP22, move to STP24 to investigate the cause of the failure. On the other hand, if you pass STP21
Moving on to STP25, preparations for product inspection are made. Next, the process moves to STP26, where product inspection is performed across various inspection items. Inspection data is processed by STP27 and provides the results necessary to determine whether the product is acceptable or not. Next, the process moves to STP28 and the test results are determined. If the product passes, it moves to STP29 where preparations for shipping are carried out, and then it is shipped to STP30. On the other hand, if it fails, the process moves to STP31, where reference data for diagnosing the cause of the failure is collected. then
At STP32, the cause of the defect is investigated and the product is removed from the product flow line. Figure 31 illustrates how the input and output shapes of the two machine components, the feed gear box and the spindle head, approach the final product for each mechanism by the four mechanisms in the composite manufacturing system. It is. Items surrounded by blocks in the figure indicate the processing contents of each mechanism. Figures 32 and 33 are TI projections (technical illustrations) of the feed gear box and spindle head, respectively.
32 is an arrangement diagram of the component parts drawn by
In the figure, 2 is the gear box body, 3 is the lid, 4 is the output shaft, 5 is the spur gear, 7 is the BRG, 8 is the oil seal,
9 is bearing nut, 10 is BRG, 11 is O
ring, 12 is a disc spring, 13 is a bush, 14 is an oil seal, 15 is a motor trick plate,
16 and 17 are bolts, 18 is a plug, 19 is a seal washer, 20 is an oil window, and 21 is a taper knob. In addition, in FIG. 33, 22 is the main body, 23 is a set screw, 24 is a cover, 25 is a bolt with a hole,
26 is a bearing holder, 27 is a bolt, 28 is a bearing outer collar, 29 is a bearing inner collar, 30 is a BRG, 31 is a lid, 32 is a bolt, 3
3 is a bearing holder, 34 is a main shaft, 35 is an intermediate collar, 36 is a sleeve, 37 is a BRG, 38 is a bearing inner collar, 39 is a bearing outer collar, 40 is a screw head, 41 is a hole piece, and 42 is a bolt. This concludes the explanation of the composite manufacturing system, and next, the information processing system for various technical information used in this composite manufacturing system will be explained. Figure 34 shows product design 102, process design 103, and work design 1 in the overall system configuration of Figure 3.
Product design 1 is a diagram that analyzes 04 in more detail.
At stage 02, an automatic design device equipped with numerical representation and image display of functional parts is installed, allowing the designer to carry out interactive design. (Details will be described later) As output, assembly drawings, parts drawings, parts lists, etc. are stored in the database. In the process design 103, a design is made to clarify the working method, working process, units to be used, machines to be used, etc. for each mechanism. Then, in the job design 104, all the necessary information regarding the production process is debugged and stored as a first group of command information, for example on a magnetic tape MT. Further, some of the production process information is input to the machining data check system 104A for cutter path check and interference check, and after being checked, it is stored in the MT. FIG. 35 is a flowchart showing each design process shown in FIG. 34 in further detail. In this figure, to indicate each step, the symbol STP is the same as in Figure 30.
is attached. The correspondence between each design and each step is shown below. Product design STP101 to STP119 Process design STP121 to STP146 Work design STP147 to STP158 In Figure 35, if information about the product is given in STP101 as product specifications, STP102
Search for past similar products via databases D and D. Next, the process moves to STP103, where the product structure is set. Next, move to STP104 and create a basic assembly drawing that corresponds to the product specifications. Next, the process moves to STP 105, where the basic assembly drawing once created in relation to the product specifications is checked, and if the specifications are met, the process moves to the next STP 106, but if the specifications are not met, the process returns to STP 103 again. On the other hand, the drawing is STP101A rather than the product specification in advance.
If this drawing is given, this drawing is regarded as a basic assembly drawing and the process goes directly to STP106. In STP106, the basic assembly drawing is disassembled into its subassemblies and the specifications of the subassemblies are determined. Next, move on to STP107 and create a partial assembly drawing. Next, in STP 108, each component is disassembled using a partial assembly drawing, and the specifications of each component are determined. At the same time, technical calculations such as dimensions, strength, weight, and inertia of each part are also performed. Next, a parts diagram is created in STP109. In STP110, the obtained parts drawings are combined and created as an assembly drawing in STP111. In FIG. 35, databases D and B are examined to determine whether or not the assembly drawing satisfies the functional aspects of the product. The result is NO.
Moving on to STP113, we check again to see if the design is possible, and if it is not possible, we conclude that it cannot be manufactured. If possible, the process moves to STP114 and then to STP103 to instruct implementation of redesign. On the other hand, STP112 is OK
If so, the process moves to STP115, where it is determined whether or not it can be manufactured using existing equipment based on the data (dimensions, accuracy, etc.) in the equipment files of databases D and B. If the judgment STP115 is NO, then STP116
Check whether it is possible to add new system functions to the equipment. If the result is that it is not possible, the process will return to STP113 and a redesign of the product structure will be considered. on the other hand
STP117 means that it can be added with STP116.
The next step is to add system functionality. Next, the process moves to STP 103, where the product structure settings are reviewed. Furthermore, if it is determined in STP115 that it can be manufactured using existing equipment, the process moves to STP118, where a parts list is created.Then, in STP119, the parts are developed while being compared with the parts inventory file and production planning file in databases D and B. The confirmed parts data is sent to database D/B and further
STP120 will instruct you to arrange the purchase items. Then the third
5. Moving to STP 121 shown in FIG. 3, the material shape for the parts other than the previously determined purchased items is determined. At this time, the databases D and B are queried about the dimensions, material, etc. of the material. Next, the process moves to STP 122, where the processing method for the material is determined, and data regarding the shape, dimensions, and accuracy of the corresponding parts resulting from the processing are stored in the database D/B. In the next STP123, the processing order of the material is determined by querying the GT ( Group Technology ) file of database D/B, and detailed data about shape, dimensions, and accuracy are stored in the parts file of database D/B. Ru. Furthermore, move on to STP124 and database D/B
The equipment file is referenced to check what material processing is possible. If it is determined that it is impossible, changes are made to the shape of the material and the processing method in STP125, and the process returns to STP121. If it is determined in STP124 that it is possible, the process moves to the next STP126, where a raw material processing machine is selected while referring to the equipment files in databases D and B, and then, in STP127, a standard processing time is selected. Next, in STP128 and STP129, the compound cutting method and its machining order are stored in databases D and B.
This is determined by referring to the GT file of the machined part, and various data such as the shape, dimensions, and accuracy of the processed part are stored in the part file. Next, the process moves to judgment STP130, where the possibility of cutting is checked with reference to the equipment files in databases D and B. If STP130 determines that it is not possible, the process moves to STP131 and instructions are given to change the processing method.
Return to STP128. Also, if it is determined that it is possible,
Move to STP132, select the work space, and then
In STP133, the function head and unit are selected, and in STP134, the standard cutting time is determined, etc., while referring to the equipment files in databases D and B. Next, in Figure 35 4
Moving to STP135 and STP136, the composite assembly method and assembly order are determined by referring to the GT files of databases D and B, and data representing the method and order is stored in the parts file of databases D and B. Next, make a judgment while referring to the equipment file.
The possibility of assembly will be checked at STP137. If assembly is not possible, the process is returned to STP103 and the product structure settings are redone. If it is determined that assembly is possible, the process moves to STP 138 to select a space for assembly work, then to STP 139 to select an assembly unit, and then to STP 140 to determine standard assembly time. These STP138~
In the STP140 processing process, databases D and B
equipment file is referenced. Next, in STP141 and STP142, the product inspection method and order are determined by referring to the GT file of databases D and B, and the determined contents are stored in the parts file. Next, the process moves to STP 143, where the possibility of product inspection is checked by referring to the equipment files in databases D and B. If it is determined that the test is impossible, a change in the test method is instructed in STP144, and the process returns to STP141. Furthermore, if it is determined that inspection is possible, a product inspection machine is selected in STP 145, and then a standard inspection time is determined in STP 146. Next, the procedure for work design will be explained with reference to FIG. 35. Each process in STP147 (material processing,
The selection of fixtures required for complex cutting, complex assembly, and product inspection is performed by referring to the fixture files GT files in databases D and B. Then judge
Proceeding to STP148, it is checked whether the selected fixtures can be installed. If it is determined that installation is not possible, the process moves to STP149 and instructions are given to change the installation method.
STP147 is executed again. If STP148 determines that installation is possible, the process moves to STP150, where the work method and work order are determined with reference to the GT file.
The process moves to STP151, where tool selection is performed. Thereafter, in STP152, a measuring device is selected by referring to the measuring device files in databases D and B.
Next, the process moves to STP153, where conditions for machining, cutting, assembly, and inspection are determined by referring to the machining property file and material property file in databases D and B. Next, the process moves to STP54, where the paths of tools, measuring instruments, and hands are determined, and based on this, a collision check is further performed at STP155. Next, in STP156 of FIG. 35, the data stored in databases D and B is edited and organized so that it can be applied to each mechanism, and then in STP157
The processing data required by each processing mechanism is recorded on NC tape. Next, processing data is checked at STP158. As described above, the processing steps in each design process are completed, and the data checked in STP158 is supplied to the complex manufacturing system SS3 as the production implementation stage. The technical information processing that is the design work in the information processing system of the present invention has been described above with reference to FIG. On the other hand, management information processing as a planning task consists of a production plan, a load plan, a layout plan, and a schedule plan, as described above (see FIG. 3). Here, the production plan is to determine the product types (for example, gear boxes, spindle heads, valves) and production quantities to be produced in a determined period. In addition, load planning refers to adjusting and appropriately determining the amount of work required for production so as not to exceed the production capacity in each production period in relation to the delivery date of the product to be produced. Furthermore, the layout plan is a spatial arrangement of the physical production means involved in production to achieve a specified function, and in the present invention, the layout plan is based on information from the process design 103 and the load plan 106 as shown in FIG. The layout plan is then executed. A factory with an optimal layout can (a) produce products that meet production requirements in terms of form and time. (b) It is possible to maintain a stable operating rate by balancing production equipment capacity and labor capacity. (c) The flow of goods is smooth and the amount of work in progress between processes can be minimized. (d) It has a system configuration that allows for flexible production of a wide variety of products, and is expandable. It has effects such as. Furthermore, schedule planning refers to which production equipment will be used to manufacture the product types and quantities determined by the production plan.
It means to plan what kind of work will be carried out on an hour-by-hour basis. As explained above, the present invention incorporates the two technical ideas of compounding and modularization into a manufacturing system, and configures a compound production system based on these, and includes an information processing system as a subsystem. Even in the design process, processes are now being carried out in line with such compounding and modularization. In other words, by combining and consolidating the number of processes, not only the production time is shortened, but also the process design using information processing becomes easier due to the reduction in the number of processes. In addition, speed can be increased by bringing the database-based information processing process online, and furthermore, receiving information via the database facilitates system operation, resulting in faster production. is achieved. Furthermore, the flexibility and speedy functions whose substantive content is compounding and modularization are as follows when viewed at the level of the manufacturing system. First of all, regarding flexibility, when product specifications vary widely depending on customer requirements, it is necessary to have flexibility in both software, which is mainly used for system operation, and hardware, which is mainly used for production equipment. It is to become rich. In other words, a manufacturing system consisting of fixed software and hardware in a transfer machine that processes a limited number of parts may be able to handle some changes in processing specifications, but it is difficult to process parts with different shapes and dimensions. Processing is not possible. On the other hand, in response to these various product specifications, the present invention supplies technical information consisting of product design, process design, and work design, and management information consisting of production planning, load planning, and schedule planning to the complex manufacturing system as command information. By changing the above-mentioned command information that controls the manufacturing system, the preparation time spent on program creation can be greatly shortened, and overall productivity can be improved. Furthermore, in response to such operational flexibility, there is also flexibility in the production equipment that makes up the manufacturing system. That is, there is a computer-controlled machining center that is one of the most versatile machine tools available today. This allows for the machining of a variety of parts by appropriately exchanging tools, but the machining is mainly for square parts and processing such as grinding and gear cutting is difficult. For this reason, its processing capabilities as a machine are limited. In addition, once the layout of the machine tools in a manufacturing system is determined, the layout cannot be easily changed, and the transfer process becomes inefficient due to the machining process of various parts, but the present invention eliminates such problems. This can be avoided as much as possible by using a composite cutting mechanism that combines composite and modular construction. In addition, regarding the quickness function, the present invention greatly improves the problem of transfer between processes by making it complex and modular. In other words, in the current production factory, the machining process can be completed in one day, but the reality is that it takes many days until all the processed parts are assembled and assembly can begin. In this regard, in the present invention, the necessary processes are sequentially performed on the processed parts at the same location, so the transfer process and transfer time can be greatly shortened, and overall productivity can be improved. It is.

[Brief explanation of drawings]

Figure 1 is a block diagram explaining the system configuration according to the present invention in relation to the flow of goods and information, Figure 2 is a diagram explaining the configuration of the complex production system according to the present invention, and Figure 3 is the same as Figure 1. 4 is a diagram illustrating the configuration of a production factory in which a complex production system according to the present invention is formed, and FIG. 5 is a diagram showing the hardware configuration of a control system that controls the complex production system that constitutes the present invention. 6 is a diagram showing the software configuration corresponding to the hardware in FIG. 1, 2, and 3 are block diagrams showing the production process corresponding to FIG. 8. FIG. 10 is a layout diagram of a production factory in which the system of the present invention is implemented. The figure is a bird's-eye view of the factory configured according to the layout of Figure 10, Figure 12 is an enlarged illustration of the main parts of the material mechanism, Figure 13 is an enlarged illustration of the main parts of the composite cutting mechanism, and Figure 14 is an enlarged illustration of the main parts of the composite cutting mechanism. Fig. 15 is an enlarged illustration of the main parts of the composite assembly mechanism, Fig. 15 is an enlarged illustration of the main parts of the product inspection mechanism, Fig. 16 is an illustration of the module space in each mechanism, and Fig. 17 is a processing work cell and its configuration. 18 is a diagram showing an example of a grinding processing unit, FIG. 19 is a diagram showing the basic layout of an embodiment of the present invention, and FIG. 20 is a diagram showing two units 1, 2, 3, and 4. Fig. 21 shows an example of the arrangement of three processing work cells, Fig. 22 shows an example of the arrangement of three processing cells, Fig. 22 shows an arrangement of four processing cells, and Fig. 23 shows an arrangement of four processing cells. Figure 24 is a diagram showing the arrangement of processing cells, Figure 24 is a diagram showing the arrangement of five processing cells, Figure 25 is a diagram showing an assembly work combination, and Figure 26 is a diagram showing the hierarchization of the functions of the cutting and assembly subsystems. Figure 27 is a functional analysis diagram of the composite cutting mechanism, Figure 28 is a functional analysis diagram of the composite assembly mechanism, Figure 29 is a functional analysis diagram of the product inspection mechanism, and Figure 30 is a functional analysis diagram of the composite cutting mechanism. A flowchart of processing within the manufacturing system. Figure 31 is a diagram showing the flow of materials and processing functions in each mechanism when the feed gear box and spindle head are targeted as machine components. Figure 32 is a diagram showing the feed gear box and spindle head. Technical illustration of the box, Figure 33 is a technical illustration of the spindle head,
Figure 34 is a detailed explanatory diagram of the product design, process design, and work design of the system configuration in Figure 3, and Figure 35 shows further details of each design process in Figure 34. This is a flowchart showing the process. 101...Product specifications, 102...Product design, 1
03...Process design, 104...Work design, 105
...Production plan, 106...Load plan, 107...
Layout plan, 108... Schedule plan, 109...
...Production process, 110...Production schedule, 111...Production control, 112...Production results, SS1...Information processing system, SS2...Production control system, SS3
... Compound manufacturing system, 151 ... Material processing mechanism, 161 ... Compound cutting mechanism, 171 ... Buffer station, 181 ... Compound assembly mechanism, 19
1... Product Inspection Organization.

Claims (1)

[Scope of Claims] 1. A system for producing machine components in a high-mix, low-volume production format, which includes the following subsystems (i.e. ), (b) and (c), and these (a), (b) and (c)
A complex production system characterized by having a database for storing data required in each subsystem. (b) Processing technical information consisting of product design, process design, and work design for the machine component parts;
Processing of management information consisting of production planning, load planning, layout planning, and schedule planning, respectively, and processing of first group command information related to production processes;
an information processing system that forms second group command information regarding a production schedule; (b) a system that responds to first and second group command information regarding a production process and a production schedule supplied from the information processing system, the system comprising: Material processing mechanism: Consists of a work unit, a work cell formed by combining the work units, and a work set formed by combining the same work cells, whose main function is to carry out cutting, and its subsidiary function is A composite cutting mechanism that performs the preparatory assembly work necessary to carry out the same cutting process; It is composed of a work unit, a work cell formed by combining the work units, and a work set formed by combining the work cells. , a composite assembly mechanism whose main function is to perform the assembly work of assembling the parts supplied from the composite cutting mechanism as the machine components, and whose subsidiary function is to perform the processing work necessary for performing the assembly work; a product inspection mechanism that inspects machine components supplied from the mechanism; and a unit management device, a cell management device, a mechanism management device, and a manufacturing management device that are hierarchically connected to each other and provided from the information processing system. A complex manufacturing system comprising: a control device that controls the operation of each of the above mechanisms in response to first and second group command information. (c) receiving information regarding production results from the control device in the complex manufacturing system and responding to second group command information regarding the production schedule from the information processing system; a control system that controls the operation of each mechanism of the complex manufacturing system by giving group command information to the control device; 2. The system according to claim 1, wherein the composite manufacturing system includes a laser oscillator, a laser light guide tube, a deflection mirror, and a welding
It is equipped with a laser processing mechanism consisting of a processing head that performs hardening and cutting, and further has a laser processing management device coupled to a manufacturing control device in the control device within the manufacturing system, and furthermore has a processing head of the laser processing mechanism. 1. A complex production system characterized in that a complex cutting or complex assembly mechanism is disposed in a work area formed by each work set. 3. The system according to claim 1, wherein the composite cutting mechanism includes a work cell that performs preparatory assembly work for alignment processing.