Automobile testing fixture blank formed by carbon fibers and testing fixture

Abstract

According to the automobile testing fixture blank formed by utilizing the carbon fibers and the testing fixture, the embedded part is arranged in the sandwich, so that when the automobile testing fixture blank is used for manufacturing the automobile testing fixture in the later period, a mounting interface of the automobile testing fixture can be processed on the embedded part; the embedded part can be made of metal materials and has good machining performance and abrasion resistance, so that a mounting interface can be conveniently machined on the embedded part, the product percent of pass is high, and the embedded part can be repeatedly mounted and used to keep good mounting precision.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of automobile gauge blank, gauge using carbon fiber forming. BACKGROUND

[0002] In the field of automobile production, the precision requirements of automobile parts are relatively high, and there are many parts involved in automobiles. The shape size and installation size of these parts need to be inspected. Automobile gauge is an important gauge used to inspect whether automobile parts are qualified in the automobile industry. The automobile gauge is processed into a high-precision standard part with the same relevant dimensions as the real part, which is used to detect whether the relevant installation size on the matching part is qualified. For example, large-size gauges such as door gauges, engine cover gauges, and trunk cover gauges need to be made with the same installation structure and interface size as the real parts. These gauges are large in size, and if they are made of aluminum alloy, they will be heavy and difficult to install and use. Therefore, lightweight materials can be used to make gauges. In the prior art, carbon fiber-coated foam materials are used to make gauge models, as disclosed in Chinese Utility Model Patent Application No. CN2019100017715. However, this gauge needs to process installation interfaces on the carbon fiber model to install inserts in order to connect with the automobile master model gauge. Since carbon fiber is a non-metallic material, it has poor machinability, and the foam material coated on it also has poor machinability and strength. Therefore, it is difficult to process the connection interface of the insert on the gauge model, which can easily produce waste and increase the manufacturing cost of large-size gauges such as automobile doors. SUMMARY

[0003] In view of the above-mentioned shortcomings of the prior art, the purpose of the present utility model is to provide a kind of automobile gauge blank, gauge using carbon fiber forming, the manufacturable automobile gauge is good, improves product pass rate.

[0004] To achieve the above-mentioned purpose, the utility model provides a kind of automobile gauge blank using carbon fiber forming, including sandwich, embedded part and carbon fiber layer, the sandwich is equipped with installation slot, the embedded part is installed in the installation slot, the carbon fiber layer is coated outside sandwich and embedded part, the carbon fiber layer and sandwich are impregnated by resin and poured into a whole structure.

[0005] Preferably, the embedded part is bonded in the installation slot by adhesive.

[0006] Preferably, the installation slot has a larger space at the bottom than at the opening.

[0007] More preferably, the installation slot is a reverse T-shaped slot or a dovetail-shaped slot.

[0008] Preferably, the core is assembled from a plurality of core blocks.

[0009] More preferably, the core blocks are bonded together by an adhesive.

[0010] Preferably, the core blocks are made of a foam material.

[0011] Preferably, the embedded part is made of an aluminum or steel material.

[0012] Corresponding to the automobile gauge blank formed by carbon fiber of the utility model, the utility model also provides an automobile gauge which is made of the automobile gauge blank adopting the above technical scheme, the carbon fiber layer outside the embedded part is partially removed, and the embedded part is processed with a mounting interface.

[0013] As described above, the automobile gauge blank formed by carbon fiber and the automobile gauge of the utility model have the following beneficial effects: in the automobile gauge blank formed by carbon fiber of the utility model, the embedded part is arranged in the core, the mounting interface of the automobile gauge can be processed on the embedded part when the automobile gauge is manufactured by the automobile gauge blank in the later period, the embedded part can be made of a metal material and has good machining performance and wear resistance, so the mounting interface can be conveniently processed on the embedded part, the product qualified rate is high, and the mounting precision is kept good when repeatedly installed and used. The automobile gauge and the manufacturing method of the automobile gauge blank of the utility model also have the above beneficial effects, which will not be repeated here. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 A perspective structure schematic view of the automobile gauge of the utility model is shown.

[0015] Figure 2 A top view of the automobile gauge of the utility model is shown.

[0016] Figure 3 A sectional view of the automobile gauge of the utility model is shown.

[0017] Figure 4 To Figure 3 An enlarged view of the middle F.

[0018] Figure 5 A die assembling schematic view of the automobile gauge blank of the utility model is shown.

[0019] Element number explanation

[0020] 1 automobile gauge

[0021] 2 embedded part

[0022] 3 core

[0023] 4 Sandwich blocks

[0024] 5 mounting slots

[0025] 6 carbon fiber layers

[0026] 7. Mold

[0027] 8. Mold cavity

[0028] 9. Release cloth

[0029] 10. Lower layer carbon fiber cloth

[0030] 11. Upper layer carbon fiber cloth

[0031] 12. Flow guiding cloth

[0032] 13 Vacuum Bag Film

[0033] 14 Sealing strip Detailed Implementation

[0034] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification.

[0035] It should be understood that the structures, proportions, sizes, etc., illustrated in the accompanying drawings of this specification are only for illustrative purposes to aid those skilled in the art and are not intended to limit the implementation of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effects and objectives of this utility model, should still fall within the scope of the technical content disclosed in this utility model. Furthermore, the terms such as "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity of description and are not intended to limit the scope of implementation of this utility model. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of implementation of this utility model.

[0036] like Figures 1 to 3 The diagram shows an automotive fixture 1 manufactured using a carbon fiber molded automotive fixture blank according to this invention. The fixture is obtained by treating the surface of the fiber-molded automotive fixture blank and then machining the installation interface at the embedded part 2. Figures 1 to 3 The image shows automotive fixture 1. For illustration of a carbon fiber molded automotive fixture blank according to this utility model, please refer to... Figures 1 to 3The utility model discloses a utilize carbon fiber forming's automobile gauge blank, including sandwich 3, pre -buried spare 2 and carbon fiber layer 6, be equipped with mounting groove 5 on sandwich 3, pre -buried spare 2 is installed in mounting groove 5, carbon fiber layer 6 is covered in sandwich 3 and pre -buried spare 2 outside, carbon fiber layer 6 and sandwich 3 become an integral whole structure through resin impregnation pouring.

[0037] The utility model discloses a utilize carbon fiber forming's automobile gauge blank, including sandwich 3, pre -buried spare 2 and carbon fiber layer 6, be equipped with mounting groove 5 on sandwich 3, pre -buried spare 2 is installed in mounting groove 5, carbon fiber layer 6 is covered in sandwich 3 and pre -buried spare 2 outside, carbon fiber layer 6 and sandwich 3 become an integral whole structure through resin impregnation pouring.

[0038] Pre -buried spare 2 is pre -installed in sandwich 3, then with carbon fiber cloth through resin pouring is the integral structure. In order to make pre -buried spare 2 have certain positioning in sandwich 3, when sandwich 3 is shaped, through cutting process mounting groove 5 is processed on sandwich 3 and is used to position and install pre -buried spare 2, and sandwich 3 can generally be made of light material such as foamed material, foamed blank is placed to numerical control machine tool, and the shape of the required automobile gauge 1 is processed to become sandwich 3 or sandwich block 4, because carbon fiber layer 6 will be covered outside sandwich 3 in the future, so it is necessary to reduce the size of the shape of sandwich 3 to a certain extent, and reserve the excess of covering carbon fiber layer 6 and later processing. In order to make pre -buried spare 2 and sandwich 3 can be firmly fixed, pre -buried spare 2 is bonded in mounting groove 5 through adhesive, can use 3M strong industrial glue to be daubed in mounting groove 5 and bond pre -buried spare 2, also can use resin and pour pre -buried spare 2 and solidify in mounting groove 5, in this way, pre -buried spare 2 and mounting groove 5 are connected firmly, and pre -buried spare 2 is not easy to fall off or loosen displacement from mounting groove 5 when automobile gauge 1 is installed and disassembled in later period, so that the precision of automobile gauge 1 is reduced. In addition, carbon fiber cloth can also be covered outside pre -buried spare 2, after carbon fiber cloth and pre -buried spare 2 are poured together with resin, then pre -buried spare 2 covered with carbon fiber cloth is placed in mounting groove 5, and then strong glue or resin is used to bond pre -buried spare 2 covered with carbon fiber cloth in mounting groove 5, in this way, because carbon fiber cloth can be better bonded with foamed material, the bonding strength of pre -buried spare 2 and sandwich 3 is higher.

[0039] In order to make the embedded part 2 connect with the installation slot 5 firmly, can bear larger load without from installation slot 5 fall off or shift, the installation slot 5 bottom space is greater than its mouth space, so, due to the size of installation slot 5 mouth limitation, embedded part 2 cannot from its mouth fall out or move, as a preferred embodiment, as shown in Figure 3 Installation slot 5 is inverted T-shaped slot, installation slot 5 can also be set into dovetail slot or other structural form, as long as its mouth size is less than its bottom size can limit embedded part 2 to fall off or move. Because installation slot 5 bottom size is greater than the mouth size, in order to facilitate the installation embedded part 2, can adopt splicing way to manufacture sandwich 3, as shown in Figure 3 Sandwich 3 is spliced by multiple sandwich blocks 4, sandwich block 4 is made of foam material, and half structure of installation slot 5 is processed on each sandwich block 4, so that, when installing embedded part 2, embedded part 2 is first clamped into half structure installation slot 5 on sandwich block 4, and then sandwich block 4 is spliced, and the installation of embedded part 2 and sandwich block 4 is completed. In order to make sandwich block 4 connect firmly, improve the overall strength of automobile gauge 1, sandwich block 4 is bonded together by adhesive.

[0040] The automobile gauge blank formed by the carbon fiber can be a gauge blank of various large sizes, such as a door gauge, an engine cover gauge, a trunk gauge, and the like.

[0041] Corresponding to the automobile gauge blank formed by the carbon fiber, the utility model also provides a manufacturing method of the automobile gauge blank, for the convenience of description, please refer to Figure 5 The manufacturing method of the automobile gauge blank provided by the utility model comprises the following steps:

[0042] 1) a sandwich 3 in the shape of the automobile gauge 1 is processed by using foam material, and an installation slot 5 for installing an embedded part 2 is arranged on the sandwich 3, and the embedded part 2 is installed in the installation slot 5;

[0043] 2) a release cloth 9, a lower carbon fiber cloth 10, and the like are sequentially laid on the surface of a mold cavity 8 of a single-sided mold 7;

[0044] 3) the sandwich 3 prefabricated in step 1) is placed in the mold cavity 8 above the lower carbon fiber cloth 10;

[0045] 4) an upper carbon fiber cloth 11, a flow guide cloth 12, and a vacuum bag film 13 are sequentially covered on the sandwich 3, and the upper carbon fiber cloth 11 and the lower carbon fiber cloth 10 wrap the sandwich 3;

[0046] 5) the vacuum bag film 13 and the edge of the single-sided mold 7 are sealingly connected by using a sealing strip 14, so that a sealed environment is formed between the vacuum bag film 13 and the mold cavity 8.

[0047] 6) vacuumizing the sealed environment between the vacuum bag film 13 and the mold cavity 8;

[0048] 7) injecting resin material into the sealed environment between the vacuum bag film 13 and the mold cavity 8, so that the resin material infiltrates to all the contact surfaces of the carbon fiber cloth and the sandwich 3, the embedded part 2;

[0049] 8) after curing treatment of the resin material, the resin material consolidates the upper carbon fiber cloth 11, the lower carbon fiber cloth 10 and the sandwich 3 into a gauge blank, the upper carbon fiber cloth 11 and the lower carbon fiber cloth 10 constitute the carbon fiber layer 6;

[0050] 9) removing the vacuum bag film 13 and the flow guide cloth 12, and taking out the gauge blank.

[0051] After taking out the gauge blank, the gauge blank is processed according to the gauge size, on the one hand, the processed automobile gauge 1 reaches the required size, on the other hand, the embedded part 2 is processed, the carbon fiber layer 6 at the embedded part 2 is removed, and the mounting interface for positioning and connecting with the automobile master gauge is processed on the embedded part 2; then the surface of the automobile gauge 1 is painted to have better surface performance.

[0052] The manufacturing method of the automobile gauge blank can be used to manufacture various large-sized gauges, such as door gauges, engine cover gauges, trunk gauges, etc.

[0053] Corresponding to the automobile gauge blank formed by carbon fiber, the utility model also provides an automobile gauge 1 which is made of the automobile gauge blank adopting the above technical scheme, the carbon fiber layer 6 outside the embedded part 2 is partially removed, the mounting interface is processed on the embedded part 2, because the specific structure of the mounting interface is various, can be bolt hole, clamping groove and other connecting structures, not detailed in the drawing, not detailed here.

[0054] In order to make the carbon fiber layer 6 have sufficient covering effect on the sandwich 3, prevent the foam material of the sandwich 3 from being exposed and abraded, please refer to Figure 4 A cutout is processed on the carbon fiber layer 6 at the part of the embedded part 2 where the mounting interface is needed to be processed, and part of the carbon fiber layer 6 at the embedded part 2 is removed, so that the part of the embedded part 2 where the mounting interface is needed to be processed is exposed, the edge of the embedded part 2 is still covered by the carbon fiber layer 6, and the joint between the embedded part 2 and the sandwich 3 is covered by the carbon fiber layer 6, so that the carbon fiber layer 6 can have sufficient covering effect on the sandwich 3, and the sandwich 3 will not be exposed. In order to prevent the cutout edge of the carbon fiber layer 6 from being warped, strong glue can be applied to the cutout edge of the carbon fiber layer 6, so that the cutout edge of the carbon fiber layer 6 is firmly bonded with the embedded part 2.

[0055] Based on the technical solutions of the above-mentioned embodiments, the automobile testing fixture blank formed by the carbon fiber has a light weight, the automobile testing fixture 1 manufactured is convenient to install and disassemble, has a good processability, has a high product qualification rate, can be repeatedly installed and used to maintain a good installation precision, and the carbon fiber and the foam material are used as the main body materials for manufacturing the testing fixture, and the cost is low. The automobile testing fixture 1 and the manufacturing method of the testing fixture blank of the present application also have the beneficial effects mentioned above, and will not be repeated here.

[0056] In summary, the present application effectively overcomes the shortcomings of the prior art and has high industrial utilization value.

[0057] The above-mentioned embodiments only exemplarily illustrate the principles and effects of the present application, and are not used to limit the present application. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present application. Therefore, all equivalent modifications or changes completed by those skilled in the art without departing from the spirit and technical thought disclosed by the present application should be covered by the claims of the present application.

Claims

1. A blank for an automotive inspection fixture formed using carbon fiber, characterized in that, The device includes a core, an embedded part, and a carbon fiber layer. The core has an installation groove, the embedded part is installed in the installation groove, and the carbon fiber layer covers the core and the embedded part. The carbon fiber layer and the core are integrated into a single structure by resin impregnation and casting.

2. The automotive fixture blank formed using carbon fiber according to claim 1, characterized in that: The embedded part is bonded to the mounting groove with adhesive.

3. The automotive fixture blank formed using carbon fiber according to claim 1, characterized in that: The space at the bottom of the mounting slot is larger than the space at its opening.

4. The automotive fixture blank formed using carbon fiber according to claim 3, characterized in that: The mounting groove is an inverted T-shaped groove or a dovetail-shaped groove.

5. The automotive fixture blank formed using carbon fiber according to claim 3, characterized in that: The core is composed of multiple core blocks spliced ​​together.

6. The automotive fixture blank formed using carbon fiber according to claim 5, characterized in that: The sandwich blocks are bonded together with adhesive.

7. The automotive fixture blank formed using carbon fiber according to claim 5, characterized in that: The sandwich block is made of foam material.

8. The automotive fixture blank formed using carbon fiber according to claim 1, characterized in that: The embedded parts are made of aluminum or steel.

9. An automotive inspection tool formed using carbon fiber, characterized in that, The pre-embedded part is made from the automotive fixture blank as described in claim 1, wherein the carbon fiber layer on the outside of the pre-embedded part is partially removed, and the pre-embedded part is machined with an installation interface.

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