JP4039811B2 - Processing control method for automobile wheels - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a processing management method for producing and managing a series of processing from a pre-painting process to a post-processing such as painting for an automobile wheel through an automatic warehouse.
[0002]
[Prior art]
A method for processing and managing automobile wheels through an automatic warehouse has been studied. Here, the automatic warehouse is warehousing and inventory managed for each product by the warehousing control data via the warehousing control device, and sequentially stored in the storage area, and from the storage area at the predetermined address based on the warehousing instruction data. The wheel is taken out and sequentially delivered, and is widely used as an inventory management means that can efficiently operate the storage area.
As a process management method with this automatic warehouse interposed, it is generally considered to consistently manage each final product by product number. That is, as shown in Fig. 8, pre-painting processes (common processes) such as cleaning, inspection, and leak test are performed for each pre-process line (processing line), and warehousing and inventory management are performed in the automatic warehouse by the product number. In accordance with the delivery instruction, the products are sequentially delivered and sent to each subsequent process line (coating line) corresponding to the coating specification designated by each product number, and the coating corresponding to the final product is applied.
[0003]
As described above, in the conventional processing management method that manages only by the product number, since the management is performed only by the product number, the automobile wheels (work pieces) discharged from the processing line are managed as different ones. Since it is necessary, the pre-painting process (common process), warehousing to the automatic warehouse, and inventory management are also managed separately by the product number.
[0004]
[Problems to be solved by the invention]
As described above, in the processing management method that manages consistently only by product number, it is necessary to provide pre-painting processes such as cleaning, appearance inspection, and leak test for each processing line, which are individually transported to an automatic warehouse. This increases the number of devices, complicates the factory production line, and increases costs. Even in automatic warehouses, it is necessary to manage the loading and unloading for each product number, so even if the shape is completely the same, such as different colors, it is managed as different products, so the number of inventory increases. It becomes uneconomical, such as the need to provide a plurality of automatic warehouses.
SUMMARY OF THE INVENTION An object of the present invention is to provide an automotive wheel processing management method that uses an automatic warehouse, can simplify the production line of a factory as much as possible, and can reduce the number of inventory in the automatic warehouse. It is what.
[0005]
[Means for Solving the Problems]
The present invention once mixes automobile wheels supplied from a plurality of previous process lines, and then executes a common process applied to all automobile wheels ,
Supply the automobile wheel on which the common process has been executed from the common conveyance path to the identification position ,
Next, in the identification step, the shape is detected by the identification means, the detection signal is input to the identification control device, the shape is determined by the identification control device, and a representative number predetermined for each shape is determined. To each car wheel,
Enter the representative number of the wheel for automobiles received from the identification position into the automatic warehouse to the entry / exit control device from the identification control device,
Each vehicle wheel is stored in an automatic warehouse by the storage control device so as to perform storage and inventory management based on the representative number, and the shape is the same based on pre-input production information. However, multiple types of final products with different final specifications due to painting, color differences, etc., are assigned different product numbers for each type under the same representative number, and are sequentially delivered from the automatic warehouse. An automotive wheel processing management method characterized in that an automotive wheel is assigned to one of the subsequent process lines according to a predetermined specification based on each product number.
[0006]
In such a method, in addition to a product number corresponding to a final process, a product number corresponding to a post-process line such as painting applied to an automobile wheel of the shape, a representative number given for each shape is used. The standardization of the pre-painting process and the number of inventory management in the automatic warehouse are reduced. That is, for products with the same shape, such as products with different colors, the representative number is once handled in common, and the same pre-painting processes such as cleaning, appearance inspection, leak test, etc. Manage inventory in the automatic warehouse by number.
[0007]
And when sending out from an automatic warehouse, based on production information, such as delivery reservation data, based on this representative number, the product number corresponding to a final product is allocated with respect to the work of this representative number.
[0008]
Here identification process, a representative number of automotive wheel produced in the previous process line, so as to sequentially send the previously identified process as a production management data in the identifying step, indexing the shape of an automotive wheel, said The representative number may be specified in the range of production management data . As a result, the specific shape is not calculated from all types of automobile wheels, but is calculated from the automobile wheels produced in each preceding process line, so the processing time is shortened and the processing accuracy is improved. To do.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
An embodiment of the present invention will be described with reference to FIGS.
1 and 2 show the basic configuration of this automobile wheel processing management method.
[0010]
Here, the pre-process line 1 is shown in FIG. 1, and 14 lines # 1 to # 14 are provided in parallel. In each line, cutting with an NC lathe, bolt drilling with a drilling machine, valve hole, Light processing is applied. Here, representative numbers classified according to their shapes are given in advance to the workpieces w (automobile wheels, hereinafter referred to as workpieces) supplied from each line. The workpieces supplied from these lines are supplied to the conveyance path 2 and mixed. And it supplies to the washing machines 3 and 3, and the processing oil and chips which were washed and adhered to the outer surface are removed. The work discharged from each of the cleaning machines 3 and 3 is further sent to the transport path 4 to perform a defective product appearance inspection 5 and remove the defective product. Further, the submerged leak test 6 (30 seconds / piece) is performed for each of the four parts. The submerged leak test 6 is to inspect the presence or absence of defects such as a cast hole from the generation of bubbles by submerging the workpiece w in a liquid layer. These cleaning steps and inspection steps are common steps 7 applied to all the workpieces w as a pre-painting step. Therefore, the workpieces w can be mixed and performed uniformly.
[0011]
Further, the workpiece w after the submergence leak test 6 is supplied to a single common conveyance path 8 and its shape is specified by the identification step 10. Then, a predetermined representative number is calculated from the shape, and the representative number is assigned to each work w and sequentially stored in the automatic warehouse. Based on the delivery reservation information, the work w having the representative number corresponding to the product number is delivered and supplied to the painting line.
[0012]
This identification step 10 will be described.
3 and 4, the workpiece w sent out from the common conveyance path 8 is supplied to an identification position I where an image identification device is provided by a belt conveyor 9 that is intermittently driven. This image identification device is composed of a camera 12 at an identification position I and an identification control device 11, and illumination devices 13 and 13 are arranged before and after the camera 12. Clamping devices 14 are disposed at the left and right side positions in the running direction of the belt conveyor 9. In the clamp device 14, the clamp members 15, 15 arranged on the left and right are controlled to move forward and backward by an air cylinder, and the workpiece w is centered at the identification position I. Then, the illumination device 13, 13 clearly gives a shadow based on the three-dimensional shape of the work w, and the camera 12 captures an image. The image displayed by the camera 12 is subjected to image analysis by the identification control device 11, and the design of the work w is detected by this image analysis.
[0013]
In addition, a plurality of phototubes are disposed along the height direction of the clamping members 15 and 15 so that a rough height can be detected simultaneously with the clamping pressure of the clamping members 15 and 15. it can. By this height detection, each work w can be classified largely, and the design is specified as accurately as possible by this data and image analysis.
[0014]
At the next detection position II, as shown in FIG. 5, the outer diameter and accurate height of the workpiece w are measured. That is, the thickness measuring device 20 including the sandwiching pieces 21 and 21 that move apart in the vertical direction is disposed on the left side of the detection position II, and the upper and lower ends of the rim are sandwiched by the sandwiching pieces 21 and 21. Height measurement is performed in units of 1 mm. Further, the diameter measuring device 23 provided with the clamping pieces 24 and 24 that move apart in the front-rear direction is arranged on the right side of the detection position II, and the outer diameter of the rim is clamped by the clamping pieces 24 and 24, so The diameter is measured in units of 1 mm. Thereby, the thing of a different diameter is detected even if it is the same design. In addition, by the accurate height measurement in units of 0.1 mm, the difference between what is subjected to post-cutting after painting and that which is not subjected to post-cutting in the same shape is distinguished. On the other hand, in this position, a continuity inspection device 26 is arranged as shown in FIG. 6 in order to distinguish the already-painted workpiece w that has been directly input to the identification device for repair. The continuity test device 26 swings up and down about the shaft 27. When the workpiece w arrives at the identification position II, the continuity inspection device 26 is displaced to a position where the edge of the rim and the electrodes 28 and 28 come into contact with each other. According to the energized state, when energized, it is determined as an unpainted product, and when not energized, it is determined as an already-painted product for rework.
[0015]
Each of the identification means described above is signal-inputted to the identification control device 11, the shape is specified as accurately as possible through this series of identification steps, and a representative number corresponding to the shape is given.
[0016]
Here, in the identification step, the representative numbers being produced in the previous process line 1 are sequentially sent to the identification control device 11 as production management data in advance. The workpiece is identified and its representative number is specified within the range of the production management data. For this reason, since the representative number is not calculated from all 200 shapes, but is determined from the limited representative number group by the identification control device 11, the processing time is shortened and the processing accuracy is improved. Will be.
[0017]
The workpiece w whose representative number is specified by the identification process is sequentially supplied from the single supply path 29 to the automatic warehouse 30. The supplied work representative number is input from the identification control device 11 to the storage control device 33.
[0018]
The repaired product is manually supplied to the identification control device 11 with a unique representative number, supplied to the supply path 48, and transferred to the automatic warehouse 30.
Here, the automatic warehouse 30 is provided with a fixed shelf 31 having a large number of storage areas in the vertical direction and a crane 32 for entering and exiting each storage area. Warehousing and inventory management for each product, storing work sequentially in an empty storage area, and taking out the work in the storage area of a predetermined address sequentially based on the delivery instruction data, Work pieces can be managed individually, and the storage area can be operated efficiently.
[0019]
Inventory management in the automatic warehouse 30 is performed by a representative number determined by the identification control device 11. By the way, after each workpiece w is delivered from the automatic warehouse, it is painted and becomes a final product. Therefore, even if the workpiece w has the same shape, it becomes a different final product due to painting, color difference, and the like. Therefore, in order to manage processes such as painting, each final product is assigned a product number. In the entry / exit control device 33, the representative number and the product number of the final product related to the representative number are registered in advance as master data.
[0020]
Moreover, since the workpiece | work w delivered from the automatic warehouse 30 is distributed to post-process lines, such as a painting process, the product number needs to be provided to each workpiece | work w at the time of this delivery. Therefore, production information such as delivery reservation data is input to the automatic warehouse in advance, and based on this, a required product number is assigned to a specific representative number.
[0021]
For example, as shown in the delivery reservation table shown in FIG. 7, three types of products having different final specifications due to painting, different colors, and the like under the representative number “690” are product numbers “691”, “698”, “699”. "Is distinguished and associated. In this case, the product number “691” is 40 delivery instructions, the product number “698” is 30 delivery instructions, the product number “699” is 25 delivery instructions, etc., according to the delivery reservation table shown in FIG. A command is input to the entry / exit control device 33 by manual input or the like. Thereby, under the control of the entry / exit control device 33, the representative number “690” is sequentially taken out from the storage area at the predetermined address, and the product number “691” is delivered up to the number 40. Next, similarly, the representative number “690” is sequentially taken out from the storage area at the predetermined address, and the product number “698” is delivered until the number 30 is reached. Further, the product number “699” is issued until the number reaches 25. In this way, based on the delivery reservation table, the work w is delivered from the automatic warehouse 30 by sequentially managing the product numbers.
[0022]
The work w delivered from the automatic warehouse 30 is distributed to one of the coating lines 40 (post-process line) according to a predetermined specification based on the product number. The specifications of each coating line 40 are set according to various materials such as a solvent coating after powder coating, a solvent coating only, and a color difference. For this reason, management such as changing the setting of the specification of the painting line based on the above-mentioned delivery reservation table or issuing a delivery instruction collectively for the same material is performed at any time. In addition, the order of delivery from the automatic warehouse is basically processed in the order of delivery reservation input, but can be replaced by a manual input operation. Further, when the number of works w related to the predetermined representative number in the delivery reservation table is insufficient, various other delivery management such as canceling the delivery, displaying the missing part information, and recording it is performed.
[0023]
【The invention's effect】
As described above, the present invention once mixes automobile wheels supplied from a plurality of previous process lines, executes a common process, further determines a shape by an identification process, and represents a representative predetermined for each shape. A number is assigned, and storage and inventory management is performed with the representative number, and the product is stored in an automatic warehouse. Further, a product number assigned to each final product is assigned to each representative number, and the product is issued. If the shape is completely the same, such as a product with different colors, the representative number will be handled as the same one, and the pre-painting process will be shared, and the automatic warehouse will Inventory control, it is not necessary to set up a common process for each previous process line in the automated warehouse, equipment is reduced, and the factory production line is simplified. With equipment cost is reduced it, even in automatic warehouses, since those managing the entry and leaving for each representative number, there is excellent effects such as an efficient the less inventory.
[0024]
Here, as the identification process, when the shape of the automobile wheel is determined from the range of the representative number of the automobile wheel produced in each preceding process line and the representative number is specified, each preceding process line Therefore, the processing time is shortened and the processing accuracy is improved.
[Brief description of the drawings]
FIG. 1 is a process chart showing an outline of the present invention.
FIG. 2 is a process diagram further embodying the process of the present invention.
FIG. 3 is a plan view showing an identification process.
FIG. 4 is a side view showing an identification process.
FIG. 5 is a vertical side view of a detection position II.
FIG. 6 is a vertical side view showing the operation of the conduction device at the detection position II.
FIG. 7 is a plan view showing an outline of a delivery reservation table.
FIG. 8 is a machining process diagram showing an outline of conventional machining management means.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Pre-process line 11 Identification control apparatus 12 Camera 14 Clamp apparatus 20 Thickness measuring apparatus 23 Diameter measuring apparatus 26 Continuity inspection apparatus 30 Automatic warehouse 40 Painting line (post process line)

Claims (2)

Once the automotive wheels supplied from multiple pre-process lines are mixed once, the common process applied to all automotive wheels is executed,
Supply the automobile wheel on which the common process has been executed from the common conveyance path to the identification position ,
Next, in the identification step, the shape is detected by the identification means, the detection signal is input to the identification control device, the shape is determined by the identification control device, and a representative number predetermined for each shape is determined. To each car wheel,
Enter the representative number of the wheel for automobiles received from the identification position into the automatic warehouse to the entry / exit control device from the identification control device,
Each vehicle wheel is stored in an automatic warehouse by the storage control device so as to perform storage and inventory management based on the representative number, and the shape is the same based on pre-input production information. However, multiple types of final products with different final specifications due to painting, color differences, etc., are assigned different product numbers for each type under the same representative number, and are sequentially delivered from the automatic warehouse. An automotive wheel processing management method, wherein an automotive wheel is assigned to one of the subsequent process lines according to a predetermined specification based on each product number. The representative number of automotive wheel produced in the previous step the line identification process, so as to sequentially input to the identification control apparatus previously identified process as a production management data by the identification control apparatus, motor vehicle based on a detection signal from the identification means 2. A method for processing and managing an automobile wheel according to claim 1, wherein the shape of the vehicle wheel is determined and the representative number is specified within the range of the production management data.

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