JPS63275488A - Manufacture of rigging products - Google Patents

Abstract

PURPOSE:To shorten period for fabricating products of trial make and secure sufficient precision by fabricating a standard congregation model in which a plurality of single item models are combined, dividing models by rigging items, performing trial make of rigging items, and by performing correlated inspection of each rigging item with the standard congregation model. CONSTITUTION:For single items for rigging such as front wind shield, side sash, upper sash, a standard congregation mode 1 is fabricated through combination of a wind shield fabricating model 3, an upper sash fabricating model 4, and a side sash fabricating model 5. The models 3-5 are divided and trial fabrication of each rigging item is performed, followed by correlated inspection of each item fabricated with the standard congregation model 1 in which the models 3-5 are combined. The fabricating model for trial make of parts and the inspection model for correlated inspection of parts are made common, that should accomplish enhancement of the parts fabricating accuracy and shortening of the period for fabrication of products of trial make.

Description

[Detailed description of the invention] Industrial applications The present invention relates to a method for manufacturing sacrificial parts for automobiles.

Conventional technology For example, sacrificial parts such as automobile windshields and moldings around the windshield are manufactured based on a single-piece manufacturing model such as that shown in Japanese Patent Application Laid-open No. 60-150951 at the trial production stage. This is generally shown in Figure 10. That is, in steps S1 and S2J in which individual striped fittings are manufactured based on individual single-item manufacturing models, and then in an inspection step S3, a dimensional inspection of each manufactured fittings part is performed individually. Note that items that are determined to be dimensional defects are returned to the previous factory and reworked.

Furthermore, after completing the dimensional inspection, the nine individual parts are subjected to a correlation inspection process S.
At step 4, it is installed on a prototype car body, and the correlation between adjacent parts is inspected. If no defective part is found at this stage, the process will proceed directly to preparation for production (mass production) of each part (Step S5); if a defective part is found, the corresponding part will be returned to Step S2 and reworked. , processing conditions, etc. will also be reconsidered.

Problems to be Solved by the Invention According to the conventional method, the defective rate of parts is relatively low because each part is manufactured individually and the correlation between parts is inspected for the first time at the time of mounting it on a prototype car body. Moreover, since the prototype vehicle body used as the basis is not accurate enough, the reliability of the inspection data is poor, and as a result, defects occur even at the production preparation stage.

A third means for solving the problem The present invention has been made in view of the above points, and as shown in the embodiment, a reference model is divided into a plurality of single parts each having a component inspection function. The process of creating a production model, the process of producing a predetermined sacrificial part based on each single-piece production model, and the process of combining each single-piece production model to form a set model, and determining the correlation between at least the sacrificial parts mentioned above based on this set model. and a step of conducting an inspection.

The reference model refers to a master model or something equivalent to it, and although the above collective model can be divided into individual production models, it is a highly accurate model based on vehicle body design data and is not used for conventional prototype production. It corresponds to the car body.

Embodiment FIGS. 1 to 9 are diagrams showing an embodiment of the present invention, and illustrate the case where a window glass and a molding around the window glass are manufactured as steel components.

Figure 1 shows the outline of the J/'i construction work. : Figure 2 shows each of the constituent sounds of the model used in the above production process. As shown in FIGS. 2 and 3, the set model 1 includes a base 2, a window glass production model (hereinafter referred to as a glass model) 3 corresponding to a window glass 33 as a single production model, and an upper mold production model (also referred to as a glass model). This model is a combination of the upper molding model (hereinafter referred to as the upper molding model) 4 and the side molding production model (hereinafter referred to as the side molding model) 5, and is manufactured with high precision based on vehicle body design data. That is, each single item production model is produced by dividing the master model or its equivalent.

As shown in FIGS. 2 and 3, the glass model 3 has a so-called full shape including the shape of the air box part 6, and a fender model 8 corresponding to the front fender 28 is integrally formed. It can be pulled out and placed directly above the

The side molding model 5 corresponds to the front door 35, and a door model 9 corresponding to the front door 39 is removably attached to the side molding model 5. This side molding model 5 can be attached to and detached from the glass model 3 from its side direction.

Then, the above set model 1 is decomposed into three parts: a glass model 3°, an upper molding model 4, and a side molding model 5, and the window glass 33. Upper molding 44 and side molding 45 are manufactured individually (steps 810 and 811 in FIG. 1).
.

In this case, when manufacturing the side molding 45 based on the side molding model 5 as shown in Figure @4,
A counterpart model corresponding to the glass model 3 is required, and a loose piece 10 is added to the t-side molding model 5 which is disassembled into the tth part. This is done by embedding bushings 11 and 12 with internal threads cut into the side molding model 5 and loose piece 10, respectively, and fixing them to the loose piece 1 (l side molding model 5) by tightening the mounting poles 13'. However, for door model 9, even if side molding model 5 is used alone, it is a collective model.

Even if it is not integrated as an accessory, it can remain a companion.

Similarly, when manufacturing the upper molding 44 based on the upper molding model 4 which is disassembled, the 7th
A loose piece 14 is added as shown. The fixing means for this loose piece 14 is not shown, but it has the same structure as the one shown in Figure 4.

Next, a fixed window glass 33. is manufactured based on each model 3, 4.5. Each of the upper molding 44 and side molding 45 is inspected individually (
Steps 812, 513 in FIG. 1). Here, we mainly check the dimensional accuracy of individual parts using the disassembled models 3 and 4.5 of i as gauges.

Next, after inspecting each component individually, the windshield 33
．． A mutual correlation test is performed for each part of the upper molding 44 and side molding 45 (step 8 in FIG. 1).
12,814). In this correlation test, the previous set model 1 shall be used as a reference, and the glass model 3. The upper molding model 4 and the side molding model 5 are recombined to form the aggregate model 1 shown in FIG. 2.

Then, of the set model 1, there is a third one on the glass model 3.
As shown in the figure, while the entire windshield 33 is placed, the upper molding 44 is set on the upper edge of the windshield 33 in the same condition as the actual vehicle condition shown in FIG. As shown in Figure 8, set the side moldings 45 in the same condition as the actual vehicle condition shown in Figure 8. In this case, since the side molding 45 is attached to the vehicle body using screws 15-i in the actual vehicle shown in FIG.
Regarding the side molding model 5 in Fig. 4, it is also bush 16.
f: By burying it in advance, it can be attached to the assembly model 1 in the same condition as on the actual vehicle.

Check items for the above correlation test include the gap c1 in FIGS. 3 and 4. In addition to checking c2, the main tasks include checking the t-gap C3 using the door model 9 corresponding to the door 39, and checking the t-gap C4 using the fender model 8 as shown in FIG.

As a result of the above-mentioned correlation inspection, if no particular defective part is found, we will move on to production preparation for each part.In the unlikely event that a defective part is found, In this case, it is necessary to return to the previous step S11 and make adjustments, or to review the conditions for the second crop.

Effects of the Invention According to the present invention, the production model for each part and the inspection model for component correlation inspection are substantially the same, so the production accuracy of the parts is increased and the number of reworks is significantly reduced. This can also contribute to improving quality, and can shorten the period from parts prototyping to preparation for production. First of all, by making the models common as described above, the number of required models and inspection jigs can be reduced, and the number of jig management steps can be reduced.

[Brief explanation of drawings]

Figure 1 is a process explanatory diagram showing an embodiment of the present invention, Figure 2 is a perspective view of the set model used in Figure 1, and Figure 3 is @2
A cross-sectional view taken along line I-1 in the figure, Figure 4 is IV-I in Figure @2.
A sectional view along the V line, Fig. 5 is a sectional view along the ■-■ line of @4th, Fig. 6 is a sectional view along the ■-■ line of Fig. 2, and Fig. 7 is the upper mold back action model. Fig. 8 is a sectional view of an actual car body corresponding to Fig. 4, Fig. 9 is a sectional view of main parts of an actual car body corresponding to Fig. 3, and Fig. 10 shows conventional parts manufacturing. It is a process explanatory diagram of a method. 1...Collection model, 3...Model for wind glass production (single production model), 4...Model for upper molding production (single production model), 5...Model for side molding production (single production model) ), 9...door model,
10, 14...Loose piece, 33 River window glass, 44...Upper molding, 45...Side molding, S11...Fashion parts manufacturing process, S14...Correlation inspection process. １・・・・・・Awago Shichidel 3・・・・・・Ride is for last pear-t7”le 4
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Claims (1)

[Claims] (1) The process of dividing the reference model and creating multiple single-piece production models each having a parts inspection function, the process of manufacturing the specified outfitting parts based on each single-piece production model, and the process of combining and assembling each single-piece production model. 1. A method for manufacturing outfitting parts, the method comprising the step of: using the set model as a reference, and performing at least a correlation test between the outfitting parts.