Angle adjusting device for R-angle tension and compression test of composite material

Abstract

The invention provides an angle adjusting device for R-angle stretching and compression tests of a composite material. The angle adjusting device comprises a base, an angle plate and a limiting assembly. The angle plate is arranged on the base and can rotate relative to the base to adjust the angle. The limiting assembly is arranged on the base and used for being matched with the angle plate in a limiting mode so as to fix the angle plate. The R angle stretching and compression test device for the composite material is provided with the angle plate with the adjustable angle, and when the R angle is connected with the test device, the angle plate can be adjusted to be parallel to the second plate body of the R angle. Thus, when the R angle is connected with the angle plate, the second plate body of the R angle can be attached to the angle plate, additional bending moment cannot be generated in the stretching or compressing process of the R angle, and therefore it is guaranteed that the test result of the strength of the R angle is accurate.

Description

Technical Field

[0001] The present application relates to the technical field of aircraft strength testing, and in particular to an angle adjustment device for R-angle tension and compression testing of composite materials. Background Art

[0002] R angle design is an important design in the field of aircraft design, and the strength of R angle is also an important indicator. Usually, the R angle is stretched or compressed to obtain the strength of the R angle.

[0003] like Figure 1 As shown, the R angle is composed of a first plate body and a second plate body with an angle. During the test, the second plate body of the R angle needs to be fixedly connected to the adapter, and the adapter has a clamping part. After the R angle is connected to the adapter, the first plate body of the R angle is parallel to the extension line of the clamping part or is located on the same straight line, that is, parallel to the extension line of the tensile or compressive force direction. One clamp of the tensile and compressive equipment clamps the first plate body of the R angle, and the other clamp clamps the clamping part of the adapter, and then stretches or compresses, and then obtains the strength value of the R angle. The existing adapter, the surface connected to the second plate body of the R angle is a plane fixedly connected to the clamping part. However, there is a certain difference in the angle between the first plate body and the second plate body of different R angles, and the R angle angle of the test piece cannot be guaranteed to be completely consistent with the design angle during the manufacturing stage of the composite test piece. When different R angles are connected to the adapter, sometimes there will be problems such as the first plate body of the R angle is not parallel to the extension line of the clamping part, or the second plate body of the R angle is not in contact with the clamping part. In this way, the R angle may generate additional bending moment during the tension or compression process, resulting in inaccurate test results for the R angle strength. Summary of the invention

[0004] In order to solve one of the above technical defects, an angle adjustment device for R-angle tension and compression testing of composite materials is provided in an embodiment of the present application.

[0005] According to an embodiment of the present application, an angle adjustment device for R angle tension and compression test of composite materials is provided, comprising:

[0006] Base;

[0007] An angle plate, the angle plate is arranged on the base, and the angle plate can be rotated relative to the base to adjust the angle;

[0008] A limiting component is arranged on the base, and is used to cooperate with the angle plate to fix the angle plate.

[0009] Optionally, the base has a supporting plane and a connecting seat arranged at the edge of the supporting plane;

[0010] One end of the angle plate is hinged to the connecting seat;

[0011] The limiting assembly is used to cooperate with the other end of the angle plate to fix the angle plate.

[0012] Optionally, the connecting seat comprises a middle seat body and two side seat bodies, and the two side seat bodies are respectively arranged on both sides of the middle seat body;

[0013] There is a gap between the middle seat body and the side seat body;

[0014] The angle plate has two lugs, and the two lugs are respectively accommodated in corresponding gaps;

[0015] The rotating shaft passes through the side seat body, the middle seat body and the lug arrangement.

[0016] Optionally, the limiting assembly includes a support member, which is located on the supporting plane. The support member can translate and adjust its position along a direction perpendicular to the rotation axis of the angle plate. The support member has a supporting inclined surface, and the free end of the angle plate is supported on the supporting inclined surface.

[0017] Optionally, the angle adjustment device for composite material R angle tension and compression test comprises an adjustment seat, and the adjustment seat is connected to the support plane;

[0018] The adjustment seat has a threaded hole;

[0019] The limiting assembly comprises an adjusting member, the adjusting member is threadedly connected to the threaded hole, one end of the adjusting member abuts against the supporting member, and the supporting member is fixed between the adjusting member and the angle plate.

[0020] Optionally, the support member has a bottom surface and a side surface, the side surface is vertically connected to the bottom surface, and the support inclined surface connects the bottom surface and the side surface;

[0021] The bottom surface is attached to the support plane;

[0022] The support member abuts against the side surface.

[0023] Optionally, the side surface has a groove, and the end of the adjusting member extends into the groove.

[0024] Optionally, the free end of the angle plate has a press-fit inclined surface;

[0025] The limiting assembly includes a pressing plate;

[0026] The pressing plate is detachably connected to the base, and the pressing plate is pressed against the press-fitting inclined surface.

[0027] Optionally, the pressing plate has strip holes at both ends;

[0028] The connecting seat has a thread groove;

[0029] The stud of the bolt passes through the strip-shaped hole and is threadedly connected to the thread groove, and the cap body of the bolt is limited on the pressing plate.

[0030] Optionally, the angle plate has a connecting hole.

[0031] By adopting the above technical solution, the present application has the following beneficial effects:

[0032] The composite material R angle tension and compression test device of the present application is provided with an angle plate with an adjustable angle. When the R angle is connected to the test device, the angle plate can be adjusted to be parallel to the second plate body of the R angle. In this way, when the R angle is connected to the angle plate, the second plate body of the R angle can be attached to the angle plate, and no additional bending moment will be generated during the tension or compression of the R angle, thereby ensuring the accuracy of the test results of the R angle strength. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0034] Figure 1 A schematic diagram showing the structure of the R angle;

[0035] Figure 2 A schematic diagram of the structure of a composite material R angle tensile and compression test device provided in an embodiment of the present application is shown;

[0036] Figure 3 A schematic diagram of an explosion structure of a composite material R angle tensile and compression test device provided in an embodiment of the present application is shown;

[0037] Figure 4 A partial structural cross-sectional view of a composite material R angle tensile and compression test device provided in an embodiment of the present application is shown;

[0038] Figure 5 A schematic structural diagram of a base for a composite material R angle tensile and compression test device provided in an embodiment of the present application is shown;

[0039] Figure 6 A schematic structural diagram of an angle plate used in a composite material R angle tensile and compression test device provided in an embodiment of the present application is shown;

[0040] Figure 7A schematic structural diagram of a support member for a composite material R angle tensile and compression test device provided in an embodiment of the present application is shown;

[0041] Figure 8 A schematic structural diagram of a pressing plate used in a composite material R-angle tensile and compression test device provided in an embodiment of the present application is shown.

[0042] Figure numerals: base 1, supporting plane 11, connecting seat 12, middle seat body 121, side seat body 122, threaded groove 1221, angle plate 2, plate body 21, lug 22, press-fit inclined surface 23, connecting hole 24, limit assembly 3, support member 31, supporting inclined surface 311, bottom surface 312, side surface 313, groove 3131, pressure plate 32, strip hole 321, rotating shaft 4, adjusting seat 5, threaded hole 51, R angle 100, first plate body 101, second plate body 102, through hole 1021. DETAILED DESCRIPTION

[0043] In order to make the technical solutions and advantages in the embodiments of the present application more clearly understood, the exemplary embodiments of the present application are further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present application, rather than an exhaustive list of all the embodiments. It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0044] In the description of the present application and its embodiments, it should be understood that the orientation or positional relationship indicated by the terms "top", "bottom", "height", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0045] In the present application and its embodiments, unless otherwise clearly specified and limited, the terms "set", "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0046] In the present application and its embodiments, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0047] like Figure 1-8 As shown, an R angle tensile and compression test device for composite materials provided by an embodiment of the present disclosure includes a base 1, an angle plate 2 and a limit assembly 3. The angle plate 2 is arranged on the base 1, and the angle plate 2 can be rotated relative to the base 1 to adjust the angle. The limit assembly 3 is arranged on the base 1, and the limit assembly 3 is used to cooperate with the angle plate 2 to fix the angle plate 2.

[0048] When the composite material R angle tensile and compression test device of the present application is used, the second plate body 102 of the R angle 100 is parallelly connected with the angle plate 2, and then the angle of the angle plate 2 is adjusted to make the first plate body 101 of the R angle parallel to the extension line of the tensile or compressive force direction. Then the limiting component 3 is used to limit the angle plate 2 to ensure that the angle plate 2 remains at this angle without deviation. Then the R angle 100 can be subjected to a tensile or compression test.

[0049] The composite material R angle tension and compression test device of the present application is provided with an angle plate 2 with adjustable angle. When the R angle is connected to the test device, the angle plate 2 can be adjusted to be parallel to the second plate body 102 of the R angle. In this way, when the R angle 100 is connected to the angle plate 2, the second plate body 102 of the R angle 100 can be attached to the angle plate 2, and no additional bending moment will be generated during the tension or compression of the R angle 100, thereby ensuring the accuracy of the test results of the R angle strength.

[0050] In some possible implementations, the base 1 has a support plane 11 and a connection seat 12 arranged at the edge of the support plane 11, and one end of the angle plate 2 is hinged to the connection seat 12. The limiting assembly 3 is used to limit the other end of the angle plate 2 to fix the angle plate 2. The support plane 11 is used to connect and support the limiting assembly 3. Providing the connection seat 12 to be hinged with the angle plate 2 can make the connection between the two more convenient and the rotation smoother.

[0051] In some possible implementation schemes, the connecting seat 12 includes a middle seat body 121 and two side seat bodies 122, and the two side seat bodies 122 are respectively arranged on both sides of the middle seat body 121. There is a gap between the middle seat body 121 and the side seat bodies 122, and the angle plate 2 has a body and two lugs 22 arranged on the plate body 21, and the two lugs 22 are respectively accommodated in the corresponding gaps. The rotating shaft 4 passes through the side seat bodies 122, the middle seat body 121 and the lugs 22. The gap between the middle seat body 121 and the two side seat bodies 122 can limit the two lugs 22, ensuring that the connecting seat 12 will only rotate along the rotating shaft 4 and will not move along the length direction of the connecting seat 12, thereby ensuring the stability of the angle plate 2 supporting the R angle 100 test piece.

[0052] In some possible implementation schemes, the limit assembly 3 includes a support member 31, the support member 31 is located on the support plane 11, the support member 31 can be translated to adjust the position along the direction perpendicular to the rotation axis 4 of the angle plate 2, the support member 31 has a support slope 311, and the free end of the angle plate 2 is supported on the support slope 311. The support member 31 is located on the side of the angle plate 2 away from the connecting seat 12. The height of the support slope 311 gradually rises from the side close to the angle plate 2 to the side away from the angle plate 2. When the support member 31 is pushed toward the side of the connecting seat 12, the support member 31 gradually lifts the side of the angle plate 2 away from the connecting seat 12 until it fits with the second plate body 102 of the R angle 100. In this way, fine-tuning can be performed to ensure the fit between the angle plate 2 and the R angle 100 to the greatest extent.

[0053] In some possible embodiments, the angle adjustment device for the R angle tensile and compression test of the composite material includes an adjustment seat 5. The adjustment seat 5 is connected to the support plane 11, and the adjustment seat 5 has a threaded hole 51. The limit assembly 3 includes an adjustment member, the adjustment member is threadedly connected to the threaded hole 51, one end of the adjustment member abuts against the support member 31, and the support member 31 is fixed between the adjustment member and the angle plate 2. The rotation of the adjustment member can adjust the distance between the end of the adjustment member abutting against the support member 31 and the adjustment seat 5, so that the abutting support member 31 can be moved closer to or away from the connecting seat 12.

[0054] Furthermore, one end of the adjusting member passes through the threaded hole 51 and abuts against the support member, and the other end of the adjusting member extends out of the supporting plane 11. An operating part is provided on the end of the adjusting member extending out of the supporting plane 11. The operating part can be set to a structure that is easy to hold, or the operating part can be set to a structure that is easy to rotate using a tool.

[0055] Further, the adjustment seat 5 is arranged on a side of the support plane 11 away from the connecting seat 12. In this way, the connecting seat 12, the adjustment seat 5 and the adjusting member will not interfere with each other, and the operation is more convenient.

[0056] In some possible implementations, the support member 31 has a bottom surface 312 and a side surface 313, the side surface 313 is vertically connected to the bottom surface 312, and the support inclined surface 311 connects the bottom surface 312 and the side surface 313. The bottom surface 312 is attached to the support plane 11, and the support member 31 abuts against the side surface 313. The extension direction of the adjustment member and the threaded hole 51 is parallel to the support plane 11, and when the adjustment member abuts against the support member 31 to move, the support member 31 can move smoothly.

[0057] In some possible implementations, the side surface 313 has a groove 3131, and the end of the adjusting member extends into the groove 3131. The extending direction of the groove 3131 is the same as that of the threaded hole 51, and the groove 3131 cooperates with the adjusting member to position the support member 31, ensuring that the support member 31 only moves along the movement direction of the adjusting member without deviation in other directions, ensuring the stability of the support of the angle plate 2, and also ensuring the accuracy of the angle adjustment of the angle plate 2.

[0058] In some possible implementation schemes, the free end of the angle plate 2 has a press-fit bevel 23, and the limiting assembly 3 includes a pressing plate 32. The pressing plate 32 is detachably connected to the base 1, and the pressing plate 32 is pressed against the press-fit bevel 23. The pressing plate 32 provides a force to press the angle plate 2 from top to bottom, and the pressing plate 32 and the support member 31 limit the angle plate 2 from the upper and lower sides of the angle plate 2 respectively, to ensure that the angle plate 2 is stable and does not deviate after the angle is adjusted. The angle plate 2 is provided with a press-fit bevel 23, which can ensure that the press-fit bevel 23 and the pressing plate 32 can abut against each other during the process of changing the angle of the angle plate 2.

[0059] In some possible implementation schemes, the two ends of the pressing plate 32 have strip holes 321, the connecting seat 12 has a threaded groove 1221, the stud of the bolt passes through the strip hole 321 and is threadedly connected to the threaded groove 1221, and the cap of the bolt is limited on the pressing plate 32. The provision of the strip hole 321 allows the position of the pressing plate 32 to be adjusted within a certain range, ensuring that the pressing plate 32 can be tightly abutted against the press fit inclined surface 23.

[0060] In some possible implementations, the angle plate 2 has a connection hole 24. The R angle has a through hole, and the through hole is set on the second plate body 102. The connecting piece passes through the through hole to connect the connecting hole 24, and the R angle and the angle plate 2 are fixed firmly. In addition, when the strength of the R angle is high enough, the degree to which the connecting piece can withstand tensile force can also be tested by stretching. Among them, the connecting piece can be a bolt, a rivet, a high-locking bolt, and other configuration nails.

[0061] The disclosure above provides many different embodiments or examples to realize the different structures of the present application. In order to simplify the disclosure of the present application, the parts and settings of specific examples are described above. Of course, they are only examples, and the purpose is not to limit the present application. In addition, the present application can repeat reference numbers and / or reference letters in different examples, and this repetition is for the purpose of simplification and clarity, which itself does not indicate the relationship between the various embodiments and / or settings discussed. In addition, the various specific processes and material examples provided by the present application, but those of ordinary skill in the art can be aware of the application of other processes and / or the use of other materials.

[0062] Although the preferred embodiments of the present application have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications falling within the scope of the present application.

[0063] Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is also intended to include these modifications and variations.

Claims

1. An angle adjustment device for composite material R angle tension and compression test, characterized in that: include: base; An angle plate, the angle plate is arranged on the base, and the angle plate can be rotated relative to the base to adjust the angle; A limiting component is provided on the base, and is used for limiting and cooperating with the angle plate to fix the angle plate.

2. The angle adjustment device for composite material R angle tension and compression test according to claim 1, characterized in that: The base has a supporting plane and a connecting seat arranged on the edge of the supporting plane; One end of the angle plate is hinged to the connecting seat; The limiting assembly is used to cooperate with the other end of the angle plate to fix the angle plate.

3. The angle adjustment device for composite material R angle tension and compression test according to claim 2, characterized in that: The connecting seat includes a central seat body and two side seat bodies, and the two side seat bodies are respectively arranged on both sides of the central seat body; There is a gap between the middle seat body and the side seat body; The angle plate has two lugs, which are respectively accommodated in corresponding gaps; The rotating shaft passes through the side seat body, the middle seat body and the lug arrangement.

4. The angle adjustment device for composite material R angle tension and compression test according to claim 2, characterized in that: The limiting assembly includes a support member, which is located on the supporting plane. The support member can be translated and adjusted in a direction perpendicular to the rotation axis of the angle plate. The support member has a supporting inclined surface, and the free end of the angle plate is supported on the supporting inclined surface.

5. The angle adjustment device for composite material R angle tension and compression test according to claim 4, characterized in that: comprising an adjustment seat connected to the support plane; The adjustment seat has a threaded hole; The limiting assembly includes an adjusting member, which is threadedly connected to the threaded hole. One end of the adjusting member abuts against the supporting member, and the supporting member is fixed between the adjusting member and the angle plate.

6. The angle adjustment device for composite material R angle tension and compression test according to claim 5, characterized in that: The support member has a bottom surface and a side surface, the side surface is vertically connected to the bottom surface, and the supporting inclined surface connects the bottom surface and the side surface; The bottom surface is in contact with the support plane; The support member abuts against the side surface.

7. The angle adjustment device for composite material R angle tension and compression test according to claim 6, characterized in that: The side surface has a groove, and the end of the adjusting member extends into the groove.

8. The angle adjustment device for composite material R angle tension and compression test according to claim 5, characterized in that: The free end of the angle plate has a press-fit inclined surface; The limiting assembly includes a pressure plate; The pressing plate is detachably connected to the base, and the pressing plate is pressed against the press-fit inclined surface.

9. The angle adjustment device for composite material R angle tension and compression test according to claim 8, characterized in that: The pressing plate has strip-shaped holes at both ends; The connecting seat has a thread groove; The stud of the bolt passes through the strip-shaped hole and is threadedly connected to the thread groove, and the cap body of the bolt is limited on the pressing plate.

10. The angle adjustment device for composite material R angle tension and compression test according to any one of claims 1 to 9, characterized in that: The angle plate has a connecting hole.

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