JPH0132014B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to an assembly/inspection jig used when assembling a thin plate structure such as an automobile body.

(Prior Art) Conventionally, as an easy-to-manufacture assembly/inspection jig with a small number of manufacturing steps, there has been known, for example, the one described in Japanese Patent Application Laid-Open No. 15645/1983.

As shown in FIG. 7, this jig includes a jig main body 5 whose upper surface is formed in a shape that substantially matches the surface shape of the object to be inspected, and an epoxy resin or the like formed on the upper surface of this jig main body 5. A thermosetting resin layer 9, a reinforcing fiber layer 8 laminated on this resin layer 9 and made of laminated fibers impregnated with gel coat, and a workpiece contact surface 20 laminated on this reinforcing fiber layer 8. form,
It is composed of a surface reinforcing layer 7 made of a mixed material of gel coat and alumina, and the surface reinforcing layer 7 and reinforcing fiber layer 8 are applied in a laminated state directly to the surface of the model 6 of the jig to be inspected. The surface shape was formed.

The manufacturing procedure of this jig will be explained based on FIG. 8. First, as shown in FIG.
1 is formed into a shape that roughly matches the surface shape of the original model 6 of the object to be inspected.

On the other hand, as shown in B, a surface reinforcing material is applied to the surface of the model 6, which has been coated with a mold release agent, to form a surface reinforcing layer 7, and reinforcing fibers are further laminated on top of the surface reinforcing material to form a reinforcing fiber. Form layer 8.

Then, as shown in C, a model in which a thermosetting resin is placed on the upper surface 51 of the jig main body 5 to form a resin layer 9, and a surface reinforcing layer 7 and a reinforcing fiber layer 8 are laminated in this order from above. The model 6 is pressed into close contact with the model 6, waits for the resin layer 9 to harden, and then the model 6 is released from the mold.

According to this jig, a workpiece receiving surface is not formed on the jig main body 5 itself, and this workpiece contacting surface 20 is
Since the surface reinforcing layer 7, reinforcing fiber layer 8, and resin layer 9 laminated on the jig body 5 are directly formed by the model, fewer man-hours are required, and the product contact surface can easily have an accurate shape. 20 could be formed.

(Problem to be Solved by the Invention) However, according to the conventional jig described above, the surface reinforcement layer 7 is formed from a mixed material of gel coat and alumina, so if the mixing ratio of gel coat is incorrect, it will harden. There is a risk that problems may occur such as the gel coat not being cured or curing too quickly.For this reason, care must be taken when mixing the gel coat and alumina, resulting in the problem that the mixing process takes time and increases the working time. .

In addition, in order to improve adhesion with the surface reinforcing layer 7 and the resin layer 9, the reinforcing fiber layer 8 needs to be impregnated with gel coat in advance and blended in. This takes time, and it is necessary to impregnate the gel coat in this way. The resulting fibers are laminated on top of the surface reinforcing layer 7 applied to the surface of the model 6, but during this lamination, it is necessary to prevent air bubbles from forming between the layers and foreign matter from entering. The problem was that the work required carefulness and skill, and was time-consuming.

The present invention has been made by focusing on these conventional problems, and aims to further simplify the structure, facilitate manufacturing, and improve workability.
The purpose is to provide an assembly/inspection jig that can improve durability.

(Means for solving the problem) In order to achieve the above-mentioned object, the assembly and
The inspection jig is an assembly and inspection jig used when assembling thin plate structures such as automobile bodies and airplane fuselages. The filler layer is formed by directly pressing the thin plate structure or its model to form a product contact surface, and the filler layer supporting surface is formed to roughly match the shape of the thin plate structure or its model. A jig body supporting the layer and a surface coating layer formed by coating molybdenum disulfide on the surface of the filler layer were provided.

(Function) To explain the manufacturing procedure of the assembly/inspection jig of the present invention, first, a filler support surface is formed on the jig body so as to roughly match the shape of the thin plate structure or model. In this process, the filler support surface does not need to be formed into a precise shape and may be processed with low precision, so this process can be easily performed.

Next, a filler mainly made of thermosetting resin is placed on the support surface of the filler layer, and the thin plate structure or its model is directly pressed onto the support surface to bring the filler into close contact with the support surface of the filler layer. Form a product contact surface on the surface of the material.

Since this filler uses a thermosetting resin, it is cured at high temperature or room temperature to form a single filler layer.

After the filler layer is formed, the thin plate structure or model is removed, and molybdenum disulfide is applied to the surface of the filler layer and dried to form a surface coating layer.

(Embodiments) Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a perspective view schematically showing an embodiment of an assembly/inspection jig according to the present invention. A filler layer 11 mainly made of epoxy resin, which is a curable resin, is formed, and a surface coating layer 12 made of a dry film of molybdenum disulfide is further formed on the surface of the filler layer 11.

In this example, only epoxy putty (for example, equivalent to XD-580 manufactured by Ciba Gaiki Co., Ltd.) is used as the filler for forming the filler layer 11.
The above main material concept only includes epoxy resin.
This shall also include cases where 100% is used.

Furthermore, the molybdenum disulfide that forms the surface coating layer 12 has high integrity with the filler layer 11 and wear resistance, such as Nippon Molybdenum DM-100.
is used.

The product abutting surface 12a, which is the upper surface of the surface coating layer 12, is configured to have a shape that precisely corresponds to the surface of a workpiece (not shown) that comes into contact with the product abutting surface 12a.

Next, a method of manufacturing the assembly/inspection jig A according to this embodiment will be described.

First, the upper part of the jig main body 10, which has been roughly machined in advance and is erected on the base 13, is roughly cut at a dimension t that is approximately 10 to 15 mm away from the dimension of the workpiece model 14, as shown in FIG. 2A. Then, a filler layer support surface 16 having a shape that roughly matches the shape of the model 14 is formed on the upper surface of the jig main body 10.

Note that this cutting is performed by appropriate means such as gas cutting or milling.

In this case, it is only necessary to roughly mark the surface 15 of the cut portion using a scale or the like according to the design drawing, and there is no need to enter complicated and accurate cross-sectional dimensions.

Next, as shown in FIG. 2B, the oxide film, oil stains, etc. adhering to the filler layer support surface 16, which has some irregularities, are removed with an appropriate cleaning agent (for example, Daikin industrial Daiflon solvent or acetone), and the above-mentioned Clean the filler layer support surface 16.

After that, as shown in FIG. 2C, first, a filler 11b made of putty-like epoxy resin twisted into a string is placed on the filler layer support surface 16, and the filler 11b is attached to the filler layer. Roughly fit it onto the support surface 16.

Next, as shown in FIG. 2D, the upper surface of the filler 11b and the corresponding surface of the model 14 are pressed together, and the filler 11b is left to harden for 1 to 24 hours depending on the temperature and other conditions. , forming the filler layer 11.
Incidentally, it is desirable to apply a mold release agent to the surface of the filler 11b in advance before press-bonding it with the model 14.

After the filler layer 11 is formed, as shown in FIG.・Polish and
Finish on the same surface as the jig main body 10.

Then, as shown in FIG. 2, molybdenum disulfide is applied to the entire surface of the finished filler layer 11, dried, and the surface coating layer 12 is dried.
The fabrication is completed by forming the .

In this embodiment, as shown in FIG. 3 and FIG. 4, which is a sectional view taken along line X-X,
A predetermined number (two in FIG. 3) of fixing grooves 17 are formed in advance on the support surface 16 of the filler layer. The bonding area with the jig main body 10 is increased to strengthen the bonding force, and it is also designed to resist shearing forces and the like acting on the filler layer 11.

In this embodiment, the product contacting surface 12a is formed of a filler layer 11 made of only epoxy putty and a surface coating layer 12, and unlike conventional methods, a surface reinforcing layer including a reinforcing fiber layer or gel coat is not formed. The number of man-hours is reduced, and in particular, the work of blending the reinforcing fibers with the gel coat and the work of laminating the reinforcing fibers can be omitted, making the work extremely simple. In addition, it is possible to improve the adhesion or contamination of resins to clothing and surrounding areas.

Moreover, since the filler layer 11 is formed only from epoxy putty, the curing time is constant, making it easy to schedule work and having high workability. Furthermore, since there is no need to mix other resins, curing materials, etc. in preparation for forming the filler layer, it is possible to prevent problems from occurring due to incorrect mixing.

Furthermore, in addition to the adhesive performance of the epoxy resin itself, the effect of the fixing groove 17 allows the filler layer 11 to be firmly and reliably fixed to the jig main body 10, ensuring the integrity of both. Can be done.

Moreover, since a surface coating layer of molybdenum disulfide, which dries quickly and has a low viscosity, is formed on the surface of the filler layer 11, wear resistance and surface smoothness are improved.
Durability is improved.

Furthermore, as described above, the manufacturing time can be shortened by the reduction in man-hours and improved workability, and a large quantity of jigs A can be manufactured at lower cost.

In addition, in the above example, an example was shown in which epoxy putty alone was used as the filler, but if necessary, it is also possible to mix fibers such as glass or carbon into it to improve the strength. Other thermosetting resins such as urethane or phenolic resins can also be used.

Furthermore, the shape of the fixing groove 17 is not limited to the inverted conical shape shown in FIGS. 3 and 4, but also as shown in FIG. 5 and FIG. It is possible to take any shape, such as a form in which grooves each having a V-shaped cross section are continuous at a predetermined interval and intersect with each other.

In addition, after the above-mentioned filler is crimped onto the model,
It can also be cut with a knife or the like while it is in a soft state before hardening.

(Effects of the Invention) As explained above, in the assembly/inspection jig of the present invention, the product contacting surface is formed of a single filler layer mainly made of thermosetting resin, unlike the conventional one. In addition, since no reinforcing fiber layer or surface reinforcing layer including gel coat is formed, the number of man-hours is significantly reduced, and in particular, the work of blending reinforcing fibers and gel coat and the work of laminating reinforcing fibers can be omitted. Therefore, the work is very easy, and in addition, it is possible to prevent gelcose from adhering to clothing or surrounding areas, or to prevent contamination.

In addition, as mentioned above, since the filler layer is formed from a single layer of thermosetting resin without having a layer that mixes gel coat and alumina, the curing time is constant and the work is easy. It's easy to schedule, and it's easy to work with. Furthermore, since there is no need for preparations such as mixing other resins, curing materials, etc. in advance of forming the filler layer, it is possible to prevent problems caused by mistakes in the mixing.

Moreover, since a surface coating layer of molybdenum disulfide, which dries quickly and has low viscosity, is formed on the surface of the filler layer, abrasion resistance and surface smoothness can be improved, and durability can be improved.

[Brief explanation of drawings]

FIG. 1 is a conceptual diagram showing an embodiment of the assembly/inspection jig according to the present invention, A to F in FIG. 2 are explanatory diagrams showing the manufacturing process of the embodiment jig, and FIG. An explanatory diagram showing the form of the fixing groove of the tool, Figure 4 is the X in Figure 3.
- An X-ray sectional view, FIG. 5 is a plan view showing another example of the fixing groove, FIG. 6 is a Y-Y sectional view of FIG. 5, FIG. 7 is a schematic diagram showing a conventional example, and FIG. The figure is an explanatory diagram showing the manufacturing process of a conventional example. 10... Jig main body, 11... Filler layer, 12...
...Surface coating layer, 12a...Product contact surface, 14...
Model, 16... filler layer support surface.

Claims (1)

[Scope of Claims] 1. An assembly and inspection jig used when assembling thin plate structures such as automobile bodies and airplane fuselages, which is formed into a single layer mainly made of thermosetting resin. , a filler layer on which a product contacting surface is formed by directly pressing the thin plate structure or its model, and a filler layer support surface formed to roughly match the shape of the thin plate structure or its model to support the filling. An assembly/inspection jig comprising: a jig body that supports a material layer; and a surface coating layer formed by applying molybdenum disulfide to the surface of the filler layer.