JPH0781802B2 - Manufacturing method of press plate inspection jig - Google Patents

Description

The present invention relates to a method for manufacturing a press plate inspection jig, and more specifically, for example, in a method for manufacturing a jig for inspecting the shape of a body panel of an automobile or the like formed by press working, Efficiently manufacturing an inspection jig by arranging a material to be an inspection jig at a predetermined position on the jig table via a supporting member as necessary and then processing the material based on NC data. The present invention relates to a manufacturing method of a press plate inspection jig that can perform.

Body panels of automobiles and the like are generally formed by pressing. In this case, the shape of the molded body panel is judged by the inspection jig.
Here, the inspection jig is, for example, the shape and position of a clearance portion where other members are arranged at the time of assembly, a joint portion where other members are attached, or mounting holes for mounting other members. The quality of is judged.

Therefore, a method of manufacturing an inspection jig according to the prior art will be described with reference to FIG.

First, a master model 4 having an outer shape corresponding to the body panel W to be inspected is manufactured on the mold base 2 (STP
1). Next, the outer shape of the master model 4 is plastered,
Alternatively, a female mold 6 is manufactured by molding with a resin agent or the like (STP
2).

When the female die 6 is solidified, it is released from the master model 4, and the outer portion of the female die 6 corresponding to the body panel W is coated with sheet wax or the like to form the escape portion 8 (STP3).
Here, the relief portion 8 corresponds to the wall thickness of the body panel W, and the thickness and the like are obtained by using the inspection site data 14 obtained from the diagram data 12 of the body panel W stored in the computer 10 in advance. Finely adjusted.

Next, in step 3, the female mold 6 in which the escape portion 8 is formed
Then, the mold is molded with resin or the like having the mold base 16 to manufacture the lower mold flock 18 of the inspection jig (STP4). Next, after the lower die block 18 is released from the female die 6, the portion that is particularly required for the shape inspection of the body panel W is determined by the tool 19 based on the inspection portion data 14 supplied from the computer 10.
To finish precisely (STP5).

On the other hand, the female die 6 produced in step 3 is molded with resin or the like to produce a male die 20 (STP6). The male die 20 is released from the female die 6, and then the male die 20 is coated with a sheet wax or the like on a predetermined outer peripheral portion corresponding to the body panel W to form an escape portion 22 (STP7). In this case, the thickness and the like of the escape portion 22 are precisely adjusted based on the inspection site data 14.

Next, in step 7, the male die 20 having the escape portion 22 formed therein.
Then, the detection block 24 is manufactured by making a mold with resin or the like (STP8).

Finally, the lower mold block 18 manufactured in step 5
Then, after fixing the detection block 24 manufactured in step 8 with the bolt 25, a predetermined portion is precisely finished using the tool 19 based on the inspection portion data 14 (STP
9).

The inspection jig manufactured as described above is, for example, the second
As shown in the figure, after the reference surface receiving block 26 and the hole position detecting block 28 are attached to the predetermined portions of the lower die block 18, the flange portion W _a of the body panel W is fixed to the reference surface receiving block 26. Positioning is performed by this. Next, the detection block 24 is fixed to the lower mold block 18 with bolts 25. In this case, the shape of the body panel W, for example, the position of the hole portion 30 corresponding to the hole position detection block 28, the upper surface portion W _b of the upper surface portion 24a and the body panel W detection blocks 24
The shape is inspected by checking the positions and the like.

By the way, the shape of the body panel W of an automobile or the like may be changed due to a model change or the like. In this case, according to the conventional inspection jig manufacturing method, the lower die block 18 and the detection block 24 constituting the inspection jig are connected to the body panel W.
In accordance with the change in the shape of the above, it must be recreated in the process of steps 2 to 9 shown in FIG. In addition, the master model 4 must be recreated, which requires a considerable number of days for production. In particular, since this master model 4 is manufactured by an NC machine tool or the like based on the shape data of the body panel W, it takes much time. Therefore, if the inspection jig is manufactured through many steps after the master model 4 is manufactured, the model change of the automobile cannot be performed in a short period of time. Further, since the lower die block 18 and the detection block 24 are inverted and duplicated in the manufacturing process, it is not possible to avoid the occurrence of manufacturing error, and therefore, there is a drawback that the adjustment process by the tool 19 cannot be deleted. It has been pointed out.

On the other hand, in recent years, a method of automatically creating NC data using a computer-aided design system (CAD) tends to be widely used, and it is possible to support a body panel W without manufacturing a master model 4 using this system. It is conceivable to directly make the mold block 18 and the detection block 24.
However, when an inspection jig is manufactured by an NC machine tool or the like, an NC tape for processing the lower die block 18 and the detection block 24 must be created, which requires a considerable amount of time. Has been pointed out. Further, there is a drawback that it takes a considerable time to process the entire shapes of the lower mold block 18 and the detection block 24 based on the NC tape.

The present invention has been made to overcome the above-mentioned inconveniences, and when manufacturing an inspection jig for inspecting the shape of a plate material formed by press working, the inspection jig is provided at a predetermined position on the jig base. It is possible to fabricate an inspection jig extremely efficiently by arranging the following materials through a supporting member as needed, and then processing the materials based on NC data. Moreover, the shape of the plate material can be changed. It is an object of the present invention to provide a method for manufacturing a press plate inspection jig that can promptly deal with such problems.

In order to achieve the above-mentioned object, the present invention provides a method of manufacturing a press plate inspection jig for inspecting the shape of a plate material formed by press working, comprising: The material of the inspection jig including the portion that interferes with the plate material through the support member is arranged at the portion corresponding to the inspection target portion to be performed, and then the shape of the plate material that is generated in advance for the material. It is characterized in that the inspection jig is manufactured by performing processing based on the shape data of the inspection target portion extracted from the data.

Next, a method for manufacturing a press plate inspection jig according to the present invention will be described in detail below with reference to the accompanying drawings.

FIG. 3 shows the manufacturing process of the inspection jig by the method of the present invention. In this case, prior to the production of the inspection jig, CAD
Create an NC tape using. That is, the computer 40 reads the diagram data 42 corresponding to the shape of the body panel W of an automobile or the like, which is preset as a database,
An NC tape 44 for processing an inspection jig constituted by the line diagram data 42 is created (STPa). In this case, it is assumed that the computer 40 creates the NC tape of only the inspection target portion for the body panel W of the inspection jig.

On the other hand, an iron plate 48 is placed on the upper surface of the mold base 46 composed of an iron pipe or the like.
Are mounted (see FIGS. 4 to 6), and the materials 50a and 50b made of resin or the like that form the lower die block of the inspection jig are placed only on the necessary portions on the iron plate 48. In this case, material 50
As shown in FIG. 4, b is a mold stand 46 protruding from the iron plate 48.
It is arranged on the wire mesh 52 (STPb).

Next, based on the NC tape 44 created in step a, the inspection parts of the body panels W of the materials 50a and 50b are precisely processed using the tool 54 (STPc). As a result, the lower mold blocks 56a and 56b of the inspection jig are manufactured.

Then, a material 57 which constitutes a removable discarding member is put on the lower mold blocks 56a, 56b (STPd), and the outer portion thereof is made into the NC tape according to the shape of the body panel W.
Precision machining with tool 54 based on 44 (STPe). As a result, the discard member 58 is created (see FIG. 4).

When the processing of the discarding member 58 is completed, a material 60 made of resin or the like is put on the surface portion (STPf), and after the material 60 is solidified, it is fixed to the lower mold block 56a with the bolt 62, and a necessary inspection site The detection block 64 is manufactured by precisely processing only the chisel with the tool 54 based on the NC tape 44 (STPg). This step is shown in FIG.

Finally, remove the discarding member 58 from the inspection jig, and
The accuracy of a predetermined inspection part is confirmed based on the inspection part data 66 of the inspection jig obtained by the above, and the inspection jig preparation work is completed (STPh).

With respect to the inspection jig manufactured as described above, as shown in FIG. 6, a reference surface receiving block 68 for receiving the flange portion W _a of the body panel W and a hole portion 70 formed in the body panel W. The hole position detection block 72 for detecting the position of the lower mold block 68 and the hole position detection block 72 can be simultaneously formed when the lower mold blocks 56a and 56b are manufactured. FIG. 7 shows the overall structure when the inspection jig 74 manufactured as described above is applied to a body panel W of an automobile.

Therefore, the body panel W is interposed between the lower mold blocks 56a and 56b and the detection block 64, and each shape or position of the inspection site is inspected. In this case, for example, the body panel W
It is inspected whether or not the hole 70 is aligned with the hole position detection block 72 in a state where the flange portion W _a of the same is fixed to the reference surface receiving block 68, and also the upper surface 64a of the detection block 64 and the upper surface of the body panel W. Inspect whether or not it matches with part W _b .

As described above, according to the present invention, when a jig for inspecting the shape of a plate material formed by press working is manufactured, a material to be an inspection jig is supported at a predetermined position on the jig base as needed. An inspection jig is manufactured by arranging through a member and then processing only the necessary parts of the material based on NC data. Therefore, it is not necessary to fabricate an inspection jig from a master model through a large number of processing steps as in the conventional case, and it is possible to fabricate an inspection jig in a very short time because the process is significantly reduced. Therefore, it is possible to cope with the change in the shape of the plate material extremely quickly. In addition, when processing a material based on NC data, only the parts required for inspection need to be processed, making the manufacturing work more efficient, and the NC data can be completed in a short number of steps, and the creation can be completed in a short time. The advantage is that

The present invention has been described above with reference to the preferred embodiments, but the present invention is not limited to these embodiments, and various improvements and design changes are possible without departing from the gist of the present invention. Of course.

[Brief description of drawings]

FIG. 1 is a process explanatory view of a manufacturing method of a press plate inspection jig according to a conventional technique, FIG. 2 is a sectional explanatory view of an inspection jig manufactured by a conventional method, and FIG. 3 is a press plate inspection according to the present invention. FIG. 4 is a sectional explanatory view of one step shown in FIG. 3, FIG. 5 is a sectional explanatory view showing another manufacturing step shown in FIG. 3, and FIG. 6 is a book. FIG. 7 is a cross-sectional explanatory view of an inspection jig manufactured by the method for manufacturing a press plate inspection jig according to the present invention. FIG. 7 is a body panel showing the inspection jig manufactured by the method for manufacturing a press plate inspection jig according to the present invention. It is a plane explanatory view showing the state where it was applied. 40 …… Computer, 44 …… NC tape 46 …… Mold base, 48 …… Steel plate 50a, 50b …… Material, 52 …… Metal mesh 54 …… Tool, 56a, 56b …… Lower block 58 …… Disposal member, 60 …… Material 64 …… Detection block, 66 …… Inspection site data 68 …… Reference plane receiving block 72 …… Hole position detection block W …… Body panel

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Akihiro Hasegawa 1-10-1 Shin-Sayama, Sayama-shi, Saitama Honda Engineering Co., Ltd. (72) Kazuo Tanaka 1-10-1 Shin-sayama, Sayama-shi, Saitama Prefecture Hondaae Inside Engineering Co., Ltd. (56) Reference JP-A-59-131103 (JP, A)

Claims (1)

[Claims] 1. A method of manufacturing a press plate inspection jig for inspecting the shape of a plate material formed by press working, comprising: a part on a jig table corresponding to an inspection target part for inspecting the shape of the plate material. , Arranging a material of an inspection jig including a portion that interferes with the plate material via a support member, and then, the inspection target portion extracted from the shape data of the plate material generated in advance for the material A manufacturing method of a press plate inspection jig, which is characterized in that the inspection jig is manufactured by performing processing on the basis of the shape data.