Clamping tool for fatigue test of steering wheel

Abstract

The utility model relates to a clamping tool used for a steering wheel fatigue test, which comprises a handle piece, a clamping piece, a hinge piece and a fixing piece, the fixing piece is provided with a profiling groove matched with a rim and a spoke of a steering wheel, the profiling groove can be completely attached to the rim and a spoke framework, it can be ensured that loosening does not occur in the whole test process, and the clamping piece is simple in structure and convenient to use. The test process is more reliable, and the test consistency can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of steering wheel performance testing, in particular to a clamping tool used for steering wheel fatigue testing. Background Art

[0002] The steering wheel is installed in front of the driver. The driver controls the direction of the vehicle by manipulating the steering wheel. If the steering wheel does not have sufficient rigidity and durability, it is easy to break in an accident, thus threatening the safety of the passengers. As one of the essential accessories for safe driving of a car, the steering wheel is usually subjected to bending and torsion fatigue tests during the performance test of the vehicle to determine the safety of the steering wheel.

[0003] For bending and torsion fatigue tests, the tooling currently used in the industry is usually used to clamp the rim of the steering wheel. During the test, the gripper of the rim is also prone to slipping and wear, which will have an adverse effect on the accuracy and consistency of the test. In response to this, the utility model proposes a clamping tool that can clamp the connection between the wheel disc and the spoke to improve the accuracy and consistency of the steering wheel fatigue test. Utility Model Content

[0004] The utility model aims to provide a clamping tool which can clamp the connection position of a wheel disc and a spoke, so as to improve the accuracy and consistency of a steering wheel fatigue test.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0006] A clamping tool for steering wheel fatigue testing, characterized by comprising:

[0007] A handle member, the handle member comprising a cylindrical handle body;

[0008] A clamping member, wherein the clamping member includes a C-shaped main body, and the main body is provided with an opening;

[0009] A hinged part, the hinged part comprises an upper hinged part and a lower hinged part which are hingedly connected to each other, the upper hinged part and the lower hinged part are hingedly connected to each other via a hinge axis; the upper hinged part is fixedly connected to the lower part of the handle body, and the lower hinged part is fixedly connected to the top of the main body;

[0010] A fixing member, the fixing member comprises an upper fixing member and a lower fixing member, the upper fixing member and the lower fixing member are located in the opening portion of the clamping member and are both fixedly connected to the main body; wherein the bottom of the upper fixing member is provided with an upper profiling groove matching the upper portion of the rim of the steering wheel, the upper fixing member has upper fixing teeth that can extend into the spokes of the rim of the steering wheel, and the upper fixing teeth are closer to the opening side of the opening portion relative to the upper profiling groove; the top of the lower fixing member is provided with a lower profiling groove matching the lower portion of the rim of the steering wheel, and the lower fixing member has lower fixing teeth that can extend into the spokes of the rim of the steering wheel, and the lower fixing teeth are closer to the opening side of the opening portion relative to the lower profiling groove.

[0011] In one embodiment, a first flange extending toward the inner side of the opening is disposed at the edge of the opening, and the first flange is constructed in a space matched with the outer structure of the fixing member.

[0012] In one embodiment, the left and right sides of the upper fixing member are both provided with second flanges extending in the left and right directions, and a portion of the upper contoured groove is located in the second flange; the left and right sides of the lower fixing member are both provided with third flanges extending in the left and right directions, and a portion of the lower contoured groove is located in the third flange.

[0013] In one embodiment, the lower profiling groove is provided with a first profiling filling protrusion, the first profiling filling protrusion can extend into the groove at the bottom of the rim, and the peripheral wall of the first profiling protrusion is in contact with the inner wall of the groove at the bottom of the rim.

[0014] In one embodiment, the lower contoured groove is provided with a second contoured filling protrusion, and the second contoured filling protrusion can extend into the bottom space at the connection between the rim and the spoke.

[0015] In one embodiment, the upper fixing member and the lower fixing member are fixedly connected to the main body by bolts.

[0016] In one embodiment, the upper hinged portion is provided with a sleeve portion, the sleeve portion has a cavity matched with the lower portion of the handle body, and the handle body is threadedly connected to the cavity.

[0017] In one embodiment, the lower hinged portion is provided with a screw portion, the main body portion is provided with a screw hole matched with the screw portion, and the screw portion is threadedly connected to the screw hole.

[0018] In one embodiment, the handle body has a plug portion that is matched with a sleeve of a steering wheel fatigue testing mechanism.

[0019] In one embodiment, the opening of the clamping member is a rectangular parallelepiped opening.

[0020] The utility model adopts the above technical solution, which has the beneficial effect that the clamping tool for steering wheel fatigue testing provided by the utility model can fully fit with the rim and the spoke frame through the contoured grooves and the upper and lower fixed teeth arranged on the fixing parts, and can ensure that there will be no looseness during the entire test process, making the test process more reliable and improving the consistency of the test. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A schematic diagram of a clamping fixture is shown.

[0022] Figure 2 A schematic diagram of a hinge is shown.

[0023] Figure 3 A schematic diagram of a clamp is shown.

[0024] Figure 4 A schematic diagram of a fixing is shown.

[0025] Figure 5 A cross-sectional schematic diagram showing the clamping tool being clamped on the steering wheel.

[0026] Figure 6 Shows Figure 5 Enlarged view of point A in the middle.

[0027] Figure 7 A schematic side view of the fixing is shown. DETAILED DESCRIPTION

[0028] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings so that the purpose, features and advantages of the present invention can be more clearly understood. It should be understood that the embodiments shown in the accompanying drawings are not intended to limit the scope of the present invention, but are only intended to illustrate the essential spirit of the technical solution of the present invention.

[0029] In the following description, certain specific details are set forth for the purpose of illustrating various disclosed embodiments to provide a thorough understanding of the various disclosed embodiments. However, those skilled in the relevant art will recognize that the embodiments may be practiced without one or more of these specific details. In other cases, well-known devices, structures, and techniques associated with the present application may not be shown or described in detail to avoid unnecessarily obscuring the description of the embodiments.

[0030] Unless the context requires otherwise, throughout the specification and claims, the word "comprise" and variations such as "include" and "have" should be construed in an open, inclusive sense, ie, should be interpreted as "including, but not limited to."

[0031] References throughout the specification to "one embodiment" or "an embodiment" indicate that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment. Thus, the appearances of "in one embodiment" or "in an embodiment" in various places throughout the specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any manner in one or more embodiments.

[0032] As used in this specification and the appended claims, the singular forms "a," "an," and "the" include plural referents unless the context clearly dictates otherwise. It should be noted that the term "or" is generally employed in its sense including "and / or" unless the context clearly dictates otherwise.

[0033] In the following description, in order to clearly demonstrate the structure and working mode of the utility model, many directional words will be used for description, but the words "front", "back", "left", "right", "outside", "inside", "outward", "inward", "up", "down", etc. should be understood as convenient terms and should not be understood as restrictive terms.

[0034] In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0035] In the description of this application, it should also be noted that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" 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 or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0036] like Figure 1 and Figure 4 As shown, this embodiment provides a clamping fixture for steering wheel fatigue testing, including a handle member 1, a hinge member 2, a clamping member 3 and a fixing member 4.

[0037] The handle 1 includes a cylindrical handle body 11, the upper part of which is used to connect with the steering wheel fatigue test mechanism. The upper part of the handle body 11 is a plug part with a larger outer diameter than the main body part, which is used to match the sleeve of the steering wheel fatigue test mechanism. The lower part of the handle body 11 is used to connect with the hinge 2.

[0038] See also Figure 2The hinge 2 includes an upper hinge part 21 and a lower hinge part 22 which are hinged to each other, and the upper hinge part 21 and the lower hinge part 22 are hinged to each other through a hinge shaft 23. The upper hinge part 21 is provided with a sleeve part 211, and the sleeve part 211 has a cavity 212 which is matched with the lower part of the handle body 11, and the inner wall of the cavity is provided with an internal thread, and the lower part of the handle body 11 is provided with an external thread which is matched with the internal thread 213, and the handle body 11 and the upper hinge part 21 are fixedly connected by a threaded connection. The lower hinge part 22 is provided with a screw part 221, and the screw part 221 is provided with an external thread.

[0039] See also Figure 3 The clamping member 3 includes a C-shaped main body 31, which has an opening 32 for accommodating the fixing member 4. The main body 31 is provided with a screw hole 33 matched with the screw rod 221 of the hinge 2, and the screw hole 33 is provided with an internal thread matched with the external thread of the screw rod 221. The screw rod 221 of the lower hinge 22 is threadedly connected with the screw hole 33, thereby realizing the fixed connection between the hinge 2 and the clamping member 3. The shape of the opening 32 is matched with the external structure of the fixing member 4. See Figure 3 and Figure 4 The outer structure of the fixing member 4 is a rectangular parallelepiped, so the shape of the opening 32 is also a rectangular parallelepiped. Preferably, the edge of the opening 32 is provided with a first flange 321 extending toward the inner side of the opening, and the first flange 321 constructs a rectangular parallelepiped space matched with the outer structure of the fixing member. The first flange 321 can prevent the fixing member 4 located in the opening 32 from moving in the left and right directions, and can limit and position the fixing member 4.

[0040] See also Figure 4 The fixing member 4 includes an upper fixing member 41 and a lower fixing member 42. The upper fixing member 41 is provided with an upper profiling groove 411 matching the upper part of the steering wheel at the bottom thereof facing the lower fixing member 42, and the upper fixing member 41 has an upper fixing tooth 412 that can extend to the spoke connected to the rim of the steering wheel. Similarly, the lower fixing member 42 is provided with a lower profiling groove 421 matching the lower part of the steering wheel at the top thereof facing the upper fixing member 41, and the lower fixing member 42 has a lower fixing tooth 422 that can extend to the spoke connected to the rim of the steering wheel. The upper fixing member 41 and the lower fixing member 42 are fixedly connected to the clamping member 3 in a detachable manner by bolts, respectively, which not only simplifies the assembly method between the fixing member 4 and the clamping member 3, but also allows the fixing member 4 of the corresponding structure to be selected according to the structure of the steering wheel, so that the clamping tooling can be adapted to steering wheels of different structures.

[0041] See also Figure 5 and Figure 6The upper fixing member 41 and the lower fixing member 42 cooperate with each other to clamp and fix the rim of the steering wheel, the upper profiling groove 411 and the lower profiling groove 421 are combined to form a profiling groove with the same structure as the rim of the steering wheel, and the upper fixing teeth 412 and the lower fixing teeth 422 are inserted into the hollow part in the middle of the spoke, so that the fixing member 4 fits with the rim 51 and the spoke skeleton 52, which can ensure that there will be no looseness during the entire test process (generally 360,000 times), thereby ensuring the accuracy and consistency of the steering wheel fatigue test process.

[0042] See also Figure 4 and Figure 7 The upper fixing member 41 and the lower fixing member 42 respectively have a second flange 413 and a third flange 423 extending in the left and right directions, and the second flange 413 and the third flange 423 both protrude from the rectangular main body of the fixing member 4, and the upper profiling groove 411 and the lower profiling groove 421 are also arranged on the corresponding second flange 413 and the third flange 423, so that the upper fixing member 41 and the lower fixing member 42 can clamp more parts of the steering wheel rim, which is more conducive to the fixation between the fixing member 4 and the rim.

[0043] See also Figure 4 and Figure 7 A first profiling filling protrusion 424 extending into the groove at the lower part of the wheel rim is provided in the lower profiling groove 421. The first profiling filling protrusion 424 can extend into the groove at the bottom of the wheel rim, and the peripheral wall of the first profiling filling protrusion 424 fits with the inner wall of the wheel rim groove. Therefore, when the steering wheel is subjected to bending and torsional fatigue tests, the wheel rim at the clamping position will not be deformed to affect the test results.

[0044] Similarly, a second profiling filling protrusion 425 extending to the connection between the rim and the spoke is also provided in the lower profiling groove 421. Due to the structure of the existing steering wheel, the spokes are basically connected to the rim at an angle, so there is a space with a certain angle at the connection between the spokes and the rim. The second profiling filling protrusion 425 fills the space when clamping, so that when the steering wheel is subjected to bending and torsion fatigue tests, the connection between the spokes and the rim will not be deformed to affect the test results.

[0045] The preferred embodiments of the present invention have been described in detail above, but it should be understood that after reading the above teachings of the present invention, those skilled in the art may make various changes or modifications to the present invention. These equivalent forms also fall within the scope defined by the claims attached to this application.

Claims

1. A clamping tool for steering wheel fatigue testing, characterized in that: include: A handle member, the handle member comprising a cylindrical handle body; A clamping member, wherein the clamping member includes a C-shaped main body, and the main body is provided with an opening; A hinged part, the hinged part comprises an upper hinged part and a lower hinged part which are hingedly connected to each other, the upper hinged part and the lower hinged part are hingedly connected to each other via a hinge axis; the upper hinged part is fixedly connected to the lower part of the handle body, and the lower hinged part is fixedly connected to the top of the main body; A fixing member, the fixing member comprises an upper fixing member and a lower fixing member, the upper fixing member and the lower fixing member are located in the opening portion of the clamping member and are both fixedly connected to the main body; wherein the bottom of the upper fixing member is provided with an upper profiling groove matching the upper portion of the rim of the steering wheel, the upper fixing member has upper fixing teeth that can extend into the spokes of the rim of the steering wheel, and the upper fixing teeth are closer to the opening side of the opening portion relative to the upper profiling groove; the top of the lower fixing member is provided with a lower profiling groove matching the lower portion of the rim of the steering wheel, and the lower fixing member has lower fixing teeth that can extend into the spokes of the rim of the steering wheel, and the lower fixing teeth are closer to the opening side of the opening portion relative to the lower profiling groove.

2. The clamping tool according to claim 1, characterized in that: The edge of the opening is provided with a first flange extending toward the inner side of the opening, and the first flange constructs a space matching the outer structure of the fixing member.

3. The clamping tool according to claim 1, characterized in that: The left and right sides of the upper fixing member are both provided with second flanges extending in the left and right directions, and a part of the upper contoured groove is located in the second flange; the left and right sides of the lower fixing member are both provided with third flanges extending in the left and right directions, and a part of the lower contoured groove is located in the third flange.

4. The clamping tool according to claim 1, characterized in that: The lower profiling groove is provided with a first profiling filling protrusion, which can extend into the groove at the bottom of the wheel rim, and the peripheral wall of the first profiling filling protrusion is in contact with the inner wall of the groove at the bottom of the wheel rim.

5. The clamping tool according to claim 1, characterized in that: The lower contoured groove is provided with a second contoured filling protrusion, and the second contoured filling protrusion can extend into the bottom space where the rim and the spoke are connected.

6. The clamping tool according to claim 1, characterized in that: The upper fixing member and the lower fixing member are fixedly connected to the main body through bolts.

7. The clamping tool according to claim 1, characterized in that: The upper hinged portion is provided with a sleeve portion, and the sleeve portion has a cavity matched with the lower portion of the handle body, and the handle body is threadedly connected with the cavity.

8. The clamping tool according to claim 1, characterized in that: The lower hinged portion is provided with a screw portion, the main body portion is provided with a screw hole matched with the screw portion, and the screw portion is threadedly connected with the screw hole.

9. The clamping tool according to claim 1, characterized in that: The handle body has a plug portion which is matched with a sleeve of a steering wheel fatigue testing mechanism.

10. The clamping tool according to claim 1, characterized in that: The opening of the clamping piece is a rectangular parallelepiped opening.

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