JPS6123482B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an inspection gauge for inspecting the accuracy of outer panels or interior materials (trim parts), which are automobile parts, or the accuracy of equipment, jigs, etc. arranged in the manufacturing process. This article relates to structures that use reference models and their manufacturing methods.

Conventionally, structures used for inspection gauges, models, etc. as described above include a surface layer 1, a lower frame 2 made of a resin pipe or honeycomb that supports the surface layer 1, and leg members, as shown in FIG. 3 and a structural part 4, which are bonded together with a resin containing glass tips, glass tape, etc. Further, the surface layer 1 was made of about nine glass cloth layers in order to maintain its rigidity and precision. As shown in FIG. 2, the manufacturing method is as follows: First, a weir 6 is made around the master model 5 using a wooden frame or the like, and a gel coat resin is applied to the upper surface of the master model 5. Thereafter, a glass cloth is laminated thereon to form the surface layer 1. Next, master model 5
The lower frame 2 is fixed via the pillars 7 and the support frame 8 at a position above where the necessary dimensions are secured, and the surface layer 1 is
A structure is formed by adhering the leg member 3 to the upper surface, which is the back surface, with a resin containing glass chips, glass tape, etc., and this is released from the master model 5 and reversed to be used as an inspection gauge or model. Was.

However, in this conventional structure, the surface layer 1
Since it is made by laminating layers, it not only takes a lot of man-hours, but also
This lamination work is usually performed about 9 times, that is, about 9 layers are stacked, so due to the hardening temperature of the resin,
After laminating 5 sheets, wait 10 hours or 1 day for 2
There is a problem in that it takes a lot of time, as it has to be done in separate days. Furthermore, in order to assemble the leg members 3 of the structural part 4, it is necessary to cut a resin pipe or the like according to the dimensions of the back surface of the surface layer 1 and the lower frame 2, and to bond them with resin. If the amount is large, there is a risk that dents may be formed in the surface layer 1 due to curing heat or the like, or that the entire leg member 3 may be distorted depending on the position where the leg member 3 is provided. In addition, if the cutting dimensions of the leg members 3 are not accurate, the surface layer 1 will also be distorted, so it is difficult to ensure accuracy and not only requires skill, but also requires many man-hours for assembly. be. Furthermore, although the structural part 4 is made of resin pipes or honeycomb, since the surface layer 1 is backed up, many leg members 3 and braces 9 are used, which not only increases the weight unexpectedly, but also increases the weight of the structure. There was also the problem of high costs due to increased material and processing costs.

In order to improve the above-mentioned conventional drawbacks, as shown in FIG.
2 and foam the resin 13 to form the structure, but according to this method, the surface layer 1
The number of laminated glass cloths (4) is only about 3 layers.
Although the working time for this can be greatly shortened, the weir 12 must be strong and sealed to withstand the foaming pressure of the resin 13, so a large number of man-hours are required to manufacture the weir 12. need,
Moreover, the injection amount of resin 13 and the blending ratio with the foaming agent,
Since technology is required for temperature control, etc., quality control is difficult and troublesome. or,
Even if foaming appears to have finished on the surface of the resin 13, post-foaming often continues for a long time inside, so it is important to remove the structure that will serve as an inspection gauge from the master model 11 as soon as possible. Not only is there a risk of misalignment when molding, but if the foaming temperature is too high, the surface layer 14 of the structure will be poorly formed, leading to problems such as an increase in the number of finishing steps.

In order to solve the above-mentioned conventional problems, the applicant of the present application previously filed an application (Japanese Patent Application Laid-Open No. 57-122301), in which "gel coat resin is cured to form the surface layer 21, and a resin paste 22 is applied to the back surface. A structure in which the surface layer 23 is formed by curing, and a structural portion 24 made of a hard resin foam block is integrally formed on the back surface of the surface layer 23 so as to completely back up the surface layer 23. (See Figure 4) and its manufacturing method to improve manufacturing workability, reduce manufacturing man-hours and schedule, reduce manufacturing cost, and reduce weight. However, with this structure, In the case of structures such as large inspection gauges and models, the resin kneading material 22 may not be filled to the depths of the structural part 24 of the structure during manufacture, and cavities may appear in the surface layer 23 of that part. Easy,
Moreover, not only is the influence of dimensional changes due to curing shrinkage of the surface layer resin after fabrication large, but also problems occur in that the structure is susceptible to buckling due to drop impact during use, and the structure is lightweight. Therefore, creep deformation is difficult to occur, but once it occurs, it is difficult to recover due to the light weight, so it is desirable to prevent the creep deformation from occurring completely. 25 is a mounting base.

Therefore, in the present invention, without impairing the advantages of the previously applied structure, we have developed a structure that is affected by the hardening shrinkage of the surface layer that occurs after manufacturing structures such as large inspection gauges and models, and by the impact of dropping during use. The purpose is to prevent buckling deformation of the parts and completely prevent creep deformation due to sunlight and temperature (especially at high temperatures such as summer) during transportation, use, and storage.

Therefore, in the present invention, firstly, the surface layer is configured in three layers, the surface part is formed of gel coat resin, and the middle part is formed of a glass cloth layer in which two to three layers of glass cloth are laminated with resin, Provided is a structure in which the back surface is formed of a resin paste mainly made of Aerosil and a low heat generation resin, and the surface layer is backed up by a structure made of a rigid resin foam, and secondly, The surface layer is composed of three layers,
The surface part is made of gel coat resin, the middle part is made of a glass cloth layer made by laminating 2 to 3 layers of glass cloth with resin, and the back part is made of a resin paste mainly made of Aerosil and low heat generation resin. The surface layer is backed up by a structural part composed of a support frame made of a rigid resin foam, and a thin metal plate having a substantially L-shaped cross section is formed along the lower edge of the structural part. To provide a structure in which an angle is attached, and an angle made of the same material as above is attached in the vertical direction between the angle and the surface layer along the side surface and corner part of the structure, and a manufacturing method thereof. By doing so, the intended purpose was achieved.

The present invention will be described below with reference to illustrative embodiments.

A is a structure such as an inspection gauge or model,
It consists of a surface layer a and a structure part b that backs up the surface layer a. The surface layer a consists of a surface part 31 made of a hardened gel coat resin mainly made of epoxy resin, an intermediate part 32 made of a glass cloth layer made of two to three layers of glass cloth laminated with resin, and a material mainly made of Aerosil and a low heat generation resin. A back surface portion 33 made of hardened resin material is formed in a layered manner, and the surface of the front surface portion 31 is a master model 4 described later.
It is designed to match the top surface of 1. The structure part b is composed of a support frame 34 in which a plurality of well-known rigid resin foam blocks 34a are bonded together with an adhesive or the like, and a reference surface made of resin containing metal powder (for example, aluminum powder) is provided on the lower surface of the support frame 34. A mounting base 35 is attached using adhesive or the like. 3
Reference numeral 6 denotes a clamp attached to the side surface of the structure A, and the clamp 36 is attached to an object to be inspected (not shown).
The clamp 36 is not necessarily necessary, and may not be attached to a device that does not require the use of the clamp 36.

7 to 8 show an embodiment of the second invention of the present invention, in which the lower end peripheral edge of the support frame 34 constituting the structure part b is made of a thin metal plate and has a substantially L-shaped cross section. A plate-shaped angle 38 made of the same material as the angle 37 is attached to the side surface of the support frame 34 with an adhesive or the like.
In addition, an angle 39 having the same shape as the angle 37 is attached to the corner part in the vertical direction with adhesive or the like, and is interposed between the angle 37 and the surface layer a to form a composite structure, and the structure part This is a stronger version of b. Reference numeral 40 denotes a sub-plate bonded to the joint between the angles 37 and 38 or the angles 37 and 39.

Next, the method for manufacturing the structure A according to the present invention,
An explanation will be given based on an embodiment of the second invention.

First, the top surface 41a of the master model 41 is shaped using a cross-sectional gauge or a curve ruler (not shown), and the hard resin foam 34a is marked as a cut line L and cut (see FIG. 9A). The cutting method may be performed by using a mechanical saw or a heating wire, or in the case of hard styrene foam, an organic solvent may be placed between the material and the master model 41 to dissolve it. Next, a plurality of cut hard resin foams 34a are joined together using an epoxy resin to form a support frame 34 which becomes the main body of the structure part b. (See FIG. 9B) In this case, if necessary, a cut may be made to level the side that the surface layer a contacts, or a surface plate (not shown) may be used to align the back surfaces.

After that, a weir 42 is made around the master model 41 using a wooden frame or the like, and a sheet wax 43 and a mold release agent 44 are added.
After coating, a gel coat resin 31a mainly made of epoxy resin, which will become the surface part 31 of the surface layer a, is applied, and then a glass cloth 32a, which will become the intermediate part 32, is applied.
are laminated in two to three layers using epoxy resin 45, and finally, a resin paste 33a mainly made of Aerosil and low heat generation resin, which will become the back surface part 33, is applied to form the surface layer a. (See FIG. 9C) Furthermore, the release material 44
may be soft-based, silicone-based, wax-based, etc.
Also, at the same time as this work, the surface layer a of the support frame 34 is
It is desirable to apply a similar resin paste 33a to the surfaces to be joined. (See FIG. 9 D) As described above, the upper surface 41 of the master model 41 is
After forming the surface layer a on the surface layer a, the previously formed support frame 34 is covered and bonded, and then the lower end (currently located above) of the support frame 34 is attached to the periphery and side surface. Attach angles 37, 38, and 39 that match the respective shapes to the corner portions with adhesive, and then attach an attachment base 35, which will serve as a reference surface, to the lower surface of the support frame 34 with adhesive, and then,
The base 35 is cut with a face cutter or the like to achieve dimensional accuracy. (See FIG. 9E) After the surface layer a is cured, it is released from the master model 41 (inverted). Sheet wax 43 is structure A
After the mold is released, it is peeled off and the weir 42 is also removed. (See FIG. 9) On the other hand, a clamp 36 for fixing an object to be inspected (not shown) or the like is attached to the demolded structure A as necessary. (Refer to Figure 7) As described above, according to the present invention, the surface layer is composed of three layers: the front part made of gel coat resin, the middle part made of glass cloth layer, and the back part made of resin paste. , the rigidity in the direction along the surface is increased to prevent shrinkage in the direction along the surface, and the resin paste is made of a low heat generation resin as a base material to prevent thermal distortion, making it especially suitable for large structures. Not only can it prevent the curing shrinkage that occurs on the body after manufacturing, but even if cavities occur in the resin kneaded part on the back side, the glass cloth layer in the middle can prevent the surface area from causing any practical problems. Since the rigidity of the surface can be maintained, it is possible to prevent cavities that tend to occur on the surface, and it has become possible to always obtain stable surface quality.

Further, according to the second aspect of the present invention, the lower end peripheral edge and the vertical corner portion of the support frame made of a rigid resin foam forming the main body of the structure are formed into a substantially L-shape made of a thin metal plate. The structural part is constructed by surrounding the support frame with a plate-like angle made of the same material and connecting the surface layer with the angle attached to the lower edge of the support frame on the side surface of the support frame. , it is possible to increase the rigidity in the direction perpendicular to the surface layer, and therefore it is possible to prevent gaps from occurring with respect to the normal surface of the master model, and it is possible to prevent the structure from being damaged by a drop impact caused by carelessness during use. It was possible to prevent irregularities such as dents in the base surface due to buckling, and damage to corners and the like. Furthermore, the angle made of a support frame made of a rigid resin foam and a thin metal plate that constitutes the structural part is lightweight, and furthermore, the stiffness increased by reinforcing the angle makes it possible to prevent creep deformation. It has the following effects.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing a conventional structure, FIG. 2 is a side view showing the same manufacturing method as above, FIG. 4 is a partially enlarged sectional view showing the structure of the structure according to the basic invention of the present invention, FIG. 5 is a perspective view showing the structure according to the invention, and FIG. 6 is an enlarged sectional view taken along the line - FIG. 7 is a perspective view showing a structure according to the second invention of the present invention, FIG. 8 is an enlarged sectional view taken along the line - in FIG. 7, and FIGS. FIG. A is a structure, a is a surface layer, b is a structure part, 31 is a surface part, 32 is an intermediate part, 33 is a back part, 34 is a support frame body, 35 is a mounting base, 37, 38, 39
is the angle, 41 is the master model, 42 is the weir, 4
3 is sheet wax and 44 is a release agent.

Claims (1)

[Claims] 1. The surface layer is made of gel coat resin, the middle part is made of a glass cloth layer made of laminated glass cloth, and the back part is made of resin knead to form a three-layered surface layer. A structure such as an inspection gauge or a model, characterized in that the surface layer is backed up by a structural part constituted by a support frame made of a rigid resin foam block. 2. A structure such as an inspection gauge or model according to claim 1, wherein the resin dough is a dough mainly made of Aerosil and a low heat generation resin. 3 The surface part is formed of gel coat resin, the middle part is formed of a glass cloth layer laminated with glass cloth, and the back part is formed of resin knead to form a three-layered surface layer, and the surface layer is made of resin. The structure is made up of a support frame made of hard foam blocks, and an angle made of a thin metal plate is attached along the lower edge of the structure, and the surface layer and the An inspection gauge, model, etc. characterized in that an angle made of the same material as above is attached vertically along the side surface of the structure between the angle provided at the lower edge corner of the structure. Structure. 4. A structure such as an inspection gauge or model according to claim 3, wherein the resin dough is a dough mainly made of Aerosil and a low heat generation resin. 5 A rigid resin foam block is cut to fit the master model, and the cut blocks are combined to form a supporting frame that will become a joined structure. After that, a mold release treatment is applied to the top surface of the master model. After applying gel coat resin to create a surface layer that matches the surface of the master model, and laminating 2 to 3 layers of glass cloth with resin on top of it,
Apply resin paste. After that, the support frame body is placed over the top surface of the master model coated with these resins, etc., and the periphery of the support frame body is reinforced with an angle made of a thin metal plate, and after the resin etc. is cured, it is removed. A method for manufacturing structures such as inspection gauges and models, which is characterized by molding.