JP2002073140A - Machine producing facility - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide machine producing facilities which can efficiently manufac ture even one product without having extra components in stock. SOLUTION: Working devices 5 are provided, and raw materials are different in size (e.g. diameter); and a nesting means 3 allocates different kinds of components 22 to the raw materials and the components to be worked are manufactured by the working devices 5 by using the allocated raw materials. The components needed for assembling a product are produced and supplied from the raw materials 2, so only the components 22 need to be manufactured from the raw materials as many as required to assemble the product and no components need not be kept in stock. In machine manufacturing facilities, only the raw materials except the components regarding the product to be manufactured can be made present. No unnecessary components are in stock, so the space for storing the components in stock is not necessary and conveying facilities and stock managing facilities for them and the trouble to operate them are eliminated, so that the production cost can greatly be reduced.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] The present invention relates to a method for producing
The present invention relates to a machine production facility capable of processing and generating parts necessary for assembling one product.

[0002]

2. Description of the Related Art Conventionally, when a product is manufactured by a machine production facility, in order to increase the production efficiency per part, a large number of identical parts are produced at a time and inventories, and the produced parts are assembled. In this case, a method was used in which as many as needed were taken out of stock and assembled. Out

[0003]

However, such a method inevitably increases the stock. Therefore, in order to have no such inventory, it is desirable to manufacture and assemble parts necessary for assembling the product every time one product is manufactured, but a machine production facility capable of efficiently performing such an operation. Yes, not yet developed.

[0004] In view of the above-mentioned circumstances, an object of the present invention is to provide a machine production facility capable of efficiently producing a product from a single machine without generating extra parts inventory. .

[0005]

According to a first aspect of the present invention, there is provided a machine production facility for processing and generating a plurality of types of parts (22) and assembling the processed and generated parts to manufacture a product (21). Material (2A, 2B, 2C, 2
D, a machining apparatus (5) having at least one multi-task machine tool capable of machining and generating the part from (2).
A, 5B, 5C, 5D, 5), and the material is composed of a plurality of materials having different sizes (for example, diameters);
A plurality of types of parts (22) to be processed by the processing device,
Nesting means (19) for allocating to the plurality of materials is provided, and the processing device (5A, 5B, 5C, 5D, 5) uses the nesting means (19) from the material to which a part to be processed is allocated. Processing execution means (12, 1) for manufacturing a plurality of parts constituting the product by using
3) is provided.

[0006] The invention according to claim 2 is characterized in that the material (2A, 2A,
B, 2C, 2D and 2) are characterized by being rod-shaped materials.

According to a third aspect of the present invention, in the second aspect of the present invention, the rod-shaped material is composed of a plurality of types of materials having different diameters, and the component is formed of a material having a diameter corresponding to the size. It is processed and generated.

The invention according to claim 4 is characterized in that the material is a block-shaped material.

According to a fifth aspect of the present invention, each of the processing apparatuses processes and generates the part based on an order of parts required for assembling the product (eg, an assembly order ORD).
A processing schedule creating means (12) for calculating and generating a processing schedule of parts in each of the processing apparatuses is provided.

The invention according to claim 6 is characterized in that the nesting means allocates a part to be machined in the same material in such a manner as to be adjacent in the axial direction.

[0011]

According to the first aspect of the present invention, since a plurality of types of parts (22) required for assembling a product are processed and produced from a material from a plurality of processing apparatuses, only a plurality of parts necessary for assembling a product are produced. It is sufficient to manufacture only the parts (22) of the kind from the raw material, and it is not necessary to keep the parts inventory. As a result, except for parts related to the products to be manufactured,
Only materials can be present. Since a variety of final parts can be manufactured from raw materials, defective parts stocks that do not support orders are not generated, and efficient production from one product becomes possible. In addition, since unnecessary parts inventory is not generated, a space for storing such parts inventory is not required, and accompanying transportation equipment, inventory management equipment, and labor for operating them are not required, so that production costs can be significantly reduced. In addition, since it is sufficient to manufacture only the final parts related to the ordered product, the lead time can be minimized.

Further, unlike in the case of lot production, parts of products other than the products ordered and shipped are not manufactured, and the process is performed only on the products to be shipped. Cost can be accurately grasped.

[0013] Furthermore, for a small number of specially-designed machines,
It can be easily handled and can accurately respond to various customer needs.

According to the second aspect of the present invention, since a bar-shaped material (bar material) can be used as a material, an inexpensive standard product can be used as a material, which contributes to a reduction in material inventory. I can do it.

According to the third aspect of the present invention, by preparing a plurality of kinds of rod-shaped materials having different diameters, it is possible to process and generate parts having various sizes, and to cope with the manufacture of various products. Can be done.

According to the fourth aspect of the present invention, a large-sized component or the like can be processed and generated from a block-shaped material.

According to the fifth aspect of the present invention, the parts are processed and generated by the respective processing devices in the order required for the assembly based on the processing schedule calculated and generated by the processing scheduling means. It can be performed smoothly and efficiently.

According to the invention of claim 6, since the components are continuously allocated in the axial direction of each material in each material, it becomes possible to continuously process and generate various types of components from the material. Efficient processing becomes possible.

The numbers and the like in parentheses are for convenience of indicating corresponding elements in the drawings, and therefore, the present description is not limited to the description on the drawings.

[0020]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a schematic diagram showing an outline of an example of a machine production facility to which the present invention is applied. FIG. 2 is a block diagram illustrating an example of a manufacturing control unit. FIG. 3 is a diagram illustrating an example of a component development table. FIG. 4 is a diagram showing an example of the component data table.

As shown in FIG. 1, the machine production equipment 1 has a plurality of composite processing modules 5A, 5B, 5C, 5D and the like, and each composite processing module 5 (without distinguishing each composite processing module). In this case, the alphabet symbol is omitted, and the combined processing module 5 is referred to as a composite processing module 5). It has a processing unit comprising at least one known multi-tasking machine tool capable of processing to a shape.

This multi-tasking machine tool is a machine capable of performing various kinds of machining, such as turning, milling, tapping, drilling, and milling, based on a lathe.
If necessary, the apparatus also has a work handling device and a hardening function and a grinding function for the processed work.
Some multi-task machine tools are based on machining centers. As described above, in this specification, a processing apparatus having at least one multi-tasking machine tool capable of processing from a raw material to a part in a state usable for assembling a product, that is, a final part, , A self-contained processing apparatus. The processing apparatus may have any configuration as long as it is a unit that connects one or more machine tools and manufactures a final part from a material.

Bar materials 2A, 2B, 2C, and 2D having different dimensions are prepared as materials in each composite processing module 5 of the processing unit 4.
A bar material 2A as a material having a diameter of 20 mm and a material length of LA has a diameter of 3 mm in the composite processing module 5B.
Bar material 2 as material with 0 mm and material length LB
B has a diameter of 50 mm in the composite machining module 5C.
Then, the bar material 2C as the raw material whose raw material length is LC,
The composite processing module 5D has a bar material 2D having a diameter of 80 mm and a material length of LD. The bar material 2D as a raw material is provided by a suitable material supply means such as a bar feeder. It is stored so as to be freely supplied to the device.

The integrated machining module 5 includes a manufacturing
Are connected to the manufacturing control section 3, and an assembly section 6 arranged adjacent to the processing section 4.

As shown in FIG. 2, the manufacturing control section 3 has a main control section 7, and the main control section 7 has a keyboard 10, a component development section 11, and a processing schedule creation via a bus line 9. Unit 12, a module control unit 13 connected to each of the multiple machining modules 5, a machining time calculation unit 15, a material management unit 16, a machining program storage unit 17, a bar nesting unit 19, and a communication control unit connected to the assembly unit 6. 20 is connected.

Since the machine production facility 1 has the above-described configuration, the worker of the assembly line in which the assembly unit 6 is arranged operates the appropriate input means such as the keyboard of the assembly unit 6 to operate the product 21. Direct manufacturing. The worker also inputs the product number PN of the product to be manufactured by the machine production equipment 1 together with the product manufacturing command C1, and these are input to the main control unit 7 via the communication control unit 20 of the manufacturing control unit 3. You.

When the main controller 7 receives the product manufacturing command C1 and the associated product number PN, the main controller 7 expands the parts necessary for assembling the product related to the product number PN for which the manufacturing has been commanded, into the parts expanding section 11. Command. In response to this, the component development unit 11 reads the component development table PDT illustrated in FIG. 3 from a memory (not shown), and develops components necessary for assembling the product 21 based on the component development table PDT.

As shown in FIG. 3, the component development table PDT includes, for a product 21 that can be manufactured by the machine production facility 1, a component 22 necessary for assembling the product 21.
The parts are listed in a form that stores the part name NAM of the part. Therefore, for example, when the product number PN is “00”
For the product of "1", referring to the parts development table PDT,
The part name NAM is “A”, “B”, “C”, “D”,
It is composed of six types of "E" and "F", and it is immediately found that it is composed of six parts.

In the parts development table PDT, the assembly order ORD of the parts 22 is also stored as the "assembly order" by a number starting from "1". According to this, the product having the product number PN of "001" is stored. At the time of assembling, first the part "A" is necessary, then the parts "B"
Next, component "D", component "F", component "E", component "C"
It is easy to determine that they are assembled in this order.

In this way, the component developing section 11 allows the assembling section 6
The product number PN for which a production command was issued from
When the parts 22 necessary for manufacturing and the assembling order of the product 1 have been determined, the main control unit 7 instructs the processing time calculation unit 15 to calculate the processing time of each part 22. In response to this, the processing time calculation unit 15 searches a memory (not shown), and
And reads the processing time MT for each component from the component data table PDA.

As shown in FIG. 4, in the component data table PDA, for each of the components 22 that can be processed by the machine production equipment 1, the size of the material work when the component is taken, in this case, , The required material length ML, the processing program number PN for processing the part, and the processing time MT required for processing the part with the composite processing module 5 are stored, respectively.
When the part name NAM is found, the above-mentioned data necessary for machining is immediately found.

The machining time calculation unit 15 refers to the component data table PDA to calculate the machining time MT for each part 22.
Is obtained, the main control unit 7 sends the parts 22 to the bar nesting unit 19 to the bar materials 2A, 2B, 2
Instruct C and 2D to nest. In response to this, the bar nesting unit 19 determines the order in which the parts 22 are cut out from the bar materials when processing and generating the components 22 from the bar materials 2A, 2B, 2C, and 2D. , 2B, 2C, and 2D.

At this time, the bar nesting unit 19 refers to the assembly order ORD of each component 22 stored in the component development table PDT and the material diameter MD of each component 22 stored in the component data table PDA, and refers to the processing unit 4. Each bar material 2A prepared as a material in each of the combined machining modules 5,
Each component 22 is allocated to 2B, 2C, and 2D.

For example, in the case of the product 21 having the product number PN of "001", the component 22 having the component name "A" is included in the bar material 2D because the material diameter MD of the component data table PDA is "80". On the other hand, the part 22 is allocated as shown in FIG. The two parts having the part names “B” and “E” are the material diameter MD in the part data table PDA.
Is "50", the components 22, 22 are allocated to the bar 2C as shown in FIG. At this time, the component “B” has a higher assembling order than the component “E”, and the time required for assembly is earlier than the component “E”. The part “E” is allocated to the front end side of 2D, that is, the side to be processed first by the combined processing module 5C, and to the right side in the drawing, the part “E” adjacent to the bar 2C in the axial direction.

Further, the two parts having the part names "D" and "F" have the material diameter MD of "3" in the part data table PDA.
0 ”, the part 2
2, 22 are allocated as shown in FIG. On this occasion,
The component “D” has a higher assembling order than the component “F”, and the time required for assembly is earlier than the component “F”. Side, that is, the side to be processed by the combined machining module 5B first, and the component “F” is allocated to the right side in the figure, to the right side in the figure, to the bar 2B in the axial direction. . In addition, since the material diameter MD of the component data table PDA is "20" for the component having the component name "C", the component 22 is allocated to the bar 2A as shown in FIG.

As described above, the bar nesting unit 19
It is supplied to the plurality of combined processing modules 5 of the processing unit 4.
Bar materials 2A, 2B, 2C, 2 as a plurality of types of materials
The parts 22 are allocated to D in such a manner that the parts can be processed and produced most efficiently and economically from the respective materials, taking into account the assembling order in the assembling process.

The material disposed in the processing section 4 is not limited to the bar-shaped bar material, but may be a block-shaped material prepared for large-sized components. In this case, a plurality of types of block-shaped materials are prepared in the processing section in different shapes, and are appropriately selected by the bar nesting section 19 according to the size of the formed component, and the component 22 is allocated. Such a large-sized material is supplied and processed to a combined processing module 5 including a processing machine such as a machining center (not shown).

The remaining material state of each material, that is, the bar material 2
A, 2B, 2C, and 2D, the remaining amount after each part 22 is nested, the remaining length L2 after the nesting of the part “C” in the bar material 2A in FIG. 1, the bar material 2B
The remaining length L5 after the nesting of the components "D" and "F", the component "B" after the nesting of the bar 2C, and the remaining length L8 after the nesting of the bar "2A" The remaining length L10 is recorded and managed by the material management unit 16, and prepares for nesting of the component 22 for the product 21 to be processed next.

Thus, each part 22 constituting the product 21
When the nesting for each bar material 2A, 2B, 2C, 2D, etc. is completed, the main control unit 7 of the manufacturing supervision unit 3 sends the part 2
A processing schedule for generating and processing 2 in the processing unit 4 is created. The processing schedule creating unit 12 refers to the processing time MT and the assembly order ORD of each component 22 to be processed in the component development table PDT and the component data table PDA, and determines that each of the components 22 is in accordance with the assembly order ORD.
The processing schedule to be performed by each combined processing module 5 is created in consideration of the processing time MT of each part 22 so as to be generated and supplied.

When the processing schedule is generated in this way, the main control unit 7 instructs the module control unit 13 to process the component 22 and, at the same time, the communication control unit 20.
To the assembling section 6 via the.

The module control unit 13 performs each of the combined machining modules 5A, 5B, 5C, and 5D according to the machining schedule calculated and created by the machining schedule creating unit 12.
The processing program for processing each part 22 is referred to the program number PN for each part 22 in the component data table PDA, and the corresponding processing program is stored in the processing program. It is supplied by reading from the unit 17 and selectively transferring it to the combined machining module 5 for machining the part 22.

The processing program storage section 17 stores the processing section 4
Since the machining programs that may be executed by the machine tools constituting each of the multi-task machining modules 5 are registered and stored in advance, the machining programs used for machining the part 22 can be specified by the program numbers PN and the like. Thus, the corresponding machining program can be easily read and transferred.

In this way, each of the composite processing modules 5 of the processing section 4 processes each bar 2 according to the processing schedule, and processes and generates the component 22. Then, the component 22 having the component name “A” is supplied from the composite processing module 5D to the assembling unit 6 first, and then the component 22 having the component name “B” is supplied from the composite processing module 5C to the assembling unit 6 from the processing unit. Is done.

As shown in FIG. 1, the worker of the assembling section 6
Component 2 with component name “B” for component 22 with component name “A”
Assemble 2. Next, the part 22 having the part name "D" is supplied from the processing part to the assembly part 6 from the composite processing module 5B, and then the part 22 having the part name "F" is supplied to the assembly part 6 from the composite processing module 5B. Therefore, the worker of the assembling section 6 assembles the component 22 with the component name “D” and the component 22 with the component name “F” to the component 22 with the component name “A”.

Next, the part 22 having the part name "E" is supplied from the processing part 4 to the assembling part 6 from the composite processing module 5C, and then the part 22 having the part name "C" is assembled from the composite processing module 5A. Since the parts are supplied to the part 6, the worker of the assembling part 6 applies the part name "E" to the part 22 having the part name "A".
Next, the part 22 having the part name “C” is assembled and the product 2
2 is completed.

In the above-described embodiment, the parts 22 are supplied to the assembling unit 6 based on the assembling order shown in the parts development table PDT according to the processing schedule.
Each composite machining module 5 is controlled, but each part 22
Is processed and generated in the form of a kit for one unit from the processing unit 4, and when one part is generated, the processing unit 4
A method of transferring the one component to the assembly unit 6 and assembling the product 21 may be used.

Further, in the case of a product 21 composed of a larger number of components 22, the product 21 is often assembled by assembling a plurality of component units each including a plurality of components. For example, assuming that the lathe is a product 21, when assembling the lathe, it is performed by mutually assembling component units composed of a plurality of components 22 such as a headstock and a tool rest. When such a more complicated product 21 is to be produced, the assembling order of each component unit is stored in the memory means in advance, and the assembling unit 6 designates the component unit in which the assembling order indicated by the assembling order is the highest. The processing schedule creation unit 12 creates a processing schedule so that processing is performed on the processing unit 4 with priority over the component 22 that constitutes the processing schedule. In this case, the processing schedule creation unit 12 determines the processing order based on the assembly order of each component unit and the assembly order ORD of each component when assembling the component unit when each component unit is regarded as a product. In step 4, a processing schedule for each part is created.

In any case, regardless of whether or not the product 21 has the above-described component units, the processing schedule creating unit 12 determines the order of the components required for assembly in the assembly unit 6 based on the order of the components. A processing schedule is calculated and generated so that each processing apparatus produces a part.
Here, "each processing device processes and generates a part based on the order of parts required for assembly" means that all parts are necessarily processed and generated with a time lag in the order of assembly. However, the order in which the components are generated may be changed within a range that does not hinder the assembling work.

In this way, first, the components constituting the component units required at the time of assembling the product are processed and generated by the processing unit 4, and the processed and generated components are used by the assembling unit 6 for the first component unit. Are assembled, and then processing and generation of components relating to the component units to be assembled with the assembled component units are performed in the processing unit 4, and the next component unit is assembled in the assembling unit 6 by the processed and generated components. And assembled to the first assembled part unit. Thereafter, similarly, the processing unit 4 processes and generates the components constituting the component unit necessary for the next assembly, and supplies the processed components to the assembling unit 6. The assembling unit 6 assembles the supplied components to form a component unit. Forming, further, the formed component unit,
The assembling work is performed in such a manner as to be assembled into a semi-finished product in which a plurality of component units are already assembled.

In the above-described embodiment, different types of materials (for example, having different diameters and different material lengths) are arranged for each of the composite processing modules 5. Instead of arranging the nested material every five, the nested material may be arranged in one place in the form of a material station, and the nested material may be cut out from the material station, carried into each of the combined processing modules 5, and processed.

[Brief description of the drawings]

FIG. 1 is a schematic diagram showing an outline of an example of a machine production facility to which the present invention is applied.

FIG. 2 is a block diagram showing an example of a manufacturing control section.

FIG. 3 is a diagram illustrating an example of a component development table.

FIG. 4 is a diagram illustrating an example of a component data table;

[Explanation of symbols]

1 ... machine production equipment 2, 2A, 2B, 2C, 2D ... material (bar material) 5, 5A, 5B, 5C, 5D ... processing device (composite processing module) 12 ... processing execution means (processing schedule creation 13) Processing execution means (module control section) 19 Nesting means (bar nesting section) 21 Product 22 Parts ORD Parts order (assembly order)

Claims (6)

[Claims] 1. A machine production facility for processing and generating a plurality of types of parts and assembling the processed and generated parts to manufacture a product, wherein at least one compound processing capable of processing and generating the parts from a material. A plurality of processing devices having a machine tool are provided, the material is composed of a plurality of materials having different sizes, and a plurality of types of parts to be processed by the processing device are provided with nesting means for allocating to the plurality of materials. A machine production facility comprising processing execution means for manufacturing a plurality of parts constituting the product by using the processing apparatus from a material to which parts to be processed are allocated by the nesting means. 2. The machine production equipment according to claim 1, wherein the material is a rod-shaped material. 3. The machine production according to claim 2, wherein the rod-shaped material is composed of a plurality of types of materials having different diameters, and the part is formed by processing the material having a corresponding diameter according to the size. Facility. 4. The machine production equipment according to claim 1, wherein the material is a block-shaped material. 5. A processing schedule, wherein a processing schedule of a part in each processing apparatus is calculated and generated so that each processing apparatus performs processing and generation of the part based on an order of parts required for assembling the product. 2. The machine production facility according to claim 1, wherein the machine production facility is provided with a creation unit. 6. The machine production equipment according to claim 1, wherein said nesting means allocates a part to be machined in a form adjacent to the axial center direction of the same material.