Multifunctional detection table for steering wheel

Abstract

The utility model discloses a steering wheel multifunctional detection bench, comprising a spline detection module, one side of the spline detection module is provided with a positioning column, and the distance between the positioning column and the spline detection module is used for detecting the distance between a steering wheel skeleton groove and a spline; the spline detection module comprises a detection column, the end part of the detection column is provided with an external spline, and the external spline of the detection column is used for being engaged with an internal spline of the spline housing. The multifunctional detection platform for the steering wheel provided by the utility model is convenient to use, can detect a plurality of items such as a spline, the distance between the spline and the groove, the height of a horn contact and the like, greatly improves the detection efficiency of the steering wheel, and reduces the production cost of the steering wheel.

Description

Technical Field

[0001] The utility model relates to a multifunctional steering wheel testing platform, belonging to the technical field of automobile steering wheel testing. Background Art

[0002] The car steering wheel is an important part of the car driving process. Its main function is to convert the force applied by the driver on the edge of the steering wheel into torque and then transmit it to the steering shaft. It generally includes the steering wheel frame, steering wheel wrapping material, spline, spring clock and horn cover. The spline refers to the connecting part between the steering wheel and the steering shaft. Its main function is to convert the force applied by the driver on the steering wheel into torque and transmit it to the steering shaft to achieve the steering control of the vehicle; the clock spring is mainly composed of a flexible flat cable, a rotating shell, a wiring harness (conductive lead wire) and a connector. It is located under the steering wheel and is an electrical rotary connector that can achieve highly reliable current transmission between two relatively rotating parts. It is mainly used to connect the steering wheel and the airbag system.

[0003] As disclosed in authorization announcement No. CN203387029U, a car steering wheel with a clock spring is provided, which includes a steering wheel frame and a clock spring. The clock spring has an annular shell. The shaft on the steering wheel frame can pass through the central through hole of the shell, which is a mounting hole, so that the shell is located below the steering wheel; the upper end surface of the shell extends out of the wiring harness sheath, and a groove is provided on the side of the steering wheel frame close to the wiring harness sheath. The wiring harness sheath can be embedded in the groove and there is a gap between the inner side surface facing the steering wheel frame and the groove.

[0004] Since the position of the wire harness sheath on the shell is fixed, the position of the wire harness sheath relative to the center through hole of the shell is also fixed. The shell is mounted on the shaft of the steering frame, and the wire harness sheath is located in the groove. A gap needs to be set between the inner side of the wire harness sheath and the groove, so the distance between the groove and the steering frame shaft is also fixed. If the distance between the groove and the steering frame shaft is too large, the wire harness sheath will abut against the groove (there is no gap between the wire harness sheath and the groove). In severe cases, the wire harness sheath cannot be placed in the groove, resulting in the inability to install the clock spring. When the wire harness sheath abuts against the groove, when the steering wheel turns, the steering wheel skeleton will squeeze the wire harness sheath of the clock spring, causing the clock spring to deform, and there will also be a creaking sound, and in severe cases, the wire will be broken. Therefore, during the steering wheel production process, it is necessary to detect the distance between the groove and the steering frame shaft.

[0005] The axis of the steering frame is the rotation axis of the steering wheel. The splines of some steering wheels are set at the rotation axis of the steering wheel, which is used to connect the steering wheel to the rotation axis, and the clock spring is mounted on the rotation axis. The qualification or non-qualification of the spline will affect the normal use of the steering wheel on the one hand, and the installation of the steering wheel on the other hand. For example, if the spline size is too small, the steering wheel will not be able to connect to the rotation axis. Therefore, the spline also needs to be tested during the production process of the steering wheel.

[0006] In the prior art, there is a lack of a detection device that can simultaneously detect the spline and the distance between the spline and the groove. Utility Model Content

[0007] The utility model aims to provide a multifunctional testing platform for steering wheels, which can simultaneously test the splines and the spacing between the splines and the grooves, thereby improving the production efficiency of the steering wheels.

[0008] In order to achieve the above technical purpose, the technical solution of the utility model is:

[0009] A multifunctional steering wheel detection platform comprises a spline detection module. A positioning column is arranged on one side of the spline detection module. The distance between the positioning column and the spline detection module is used to detect the distance between the spline and the groove of the steering wheel skeleton.

[0010] The spline detection module comprises a detection column, an end of which is provided with an external spline, the external spline of the detection column is used to mesh with the internal spline of a spline sleeve, and the spline sleeve is located on the steering wheel.

[0011] When in use, the end of the detection column is inserted into the spline sleeve on the steering wheel frame, and the positioning column is inserted into the groove of the steering wheel frame; if the spline sleeve on the steering wheel frame and the spacing between the spline and the groove meet the requirements, the end of the detection column can be successfully inserted into the spline sleeve, and the positioning column can also be successfully inserted into the groove; if the spline sleeve on the steering wheel frame does not meet the requirements (the size is small or the internal spline tooth shape is incorrect), the end of the detection column cannot be inserted into the spline, thereby realizing the detection of the spline; if the spacing between the spline and the groove is too large, the end of the detection column cannot be successfully inserted into the spline sleeve or the end of the positioning column cannot be inserted into the groove, thereby realizing the detection of the spacing between the groove and the spline.

[0012] The spline detection module on the test bench is specifically set according to the shape and size of the spline on the steering wheel. For example, when the spline on the steering wheel frame is a spline sleeve, the spline detection component of the spline detection module is a spline column, and the outer spline of the spline column and the inner spline of the spline sleeve are matched to make the outer spline and the inner spline mesh with each other; for another example, when the spline on the steering wheel frame is a spline shaft, the spline detection component of the spline detection module is a spline sleeve, and the inner spline of the spline sleeve and the outer spline of the spline shaft are matched to make the inner spline and the outer spline mesh with each other.

[0013] The testing platform is provided with a supporting seat for supporting the steering wheel skeleton, so that the steering wheel skeleton can be stably placed on the testing platform.

[0014] The detection column is provided with a connecting column at the tail end, the diameter of the connecting column is smaller than the diameter of the detection column, and the detection platform is provided at a connecting hole for the connecting column to pass through, the diameter of the connecting hole is smaller than the diameter of the detection column. The height of the detection column can be limited by the step difference between the connecting column and the detection column to prevent the detection column from sliding downward.

[0015] The connecting column is connected to the detection platform through a detection column sleeve, the connecting column is connected in the detection column sleeve, and the diameter of the detection column sleeve is smaller than the diameter of the detection column.

[0016] In order to fix the detection column and the detection column sleeve, the detection column sleeve is provided with a screw hole, and a bolt is connected in the screw hole, and the bolt fastens the connection column and the detection column sleeve.

[0017] In order to ensure the product quality of the steering wheel, make the spacing between the spline and the groove uniform, and avoid the spacing between the spline and the groove being too small, the positioning column is connected to the spacing detection circuit, and the spacing detection circuit is connected to a spacing warning device (indicator light). When in use, the metal steering wheel frame is electrically connected to the spacing detection circuit. When the spacing between the spline sleeve and the spline and the groove on the steering wheel frame meets the requirements, and the end of the detection column penetrates into the spline sleeve and the positioning column penetrates into the groove, the inner side of the positioning column facing the steering wheel frame will abut against the groove, so that the positioning column and the steering wheel frame are electrically connected. Since the indicator light is electrically connected to the spacing detection circuit, the indicator light can be lit when the positioning column and the steering wheel frame are electrically connected; when the spacing between the spline and the groove is too small, although the end of the detection column can penetrate into the spline sleeve and the positioning column can also penetrate into the groove, there is a gap between the inner side of the positioning column facing the steering wheel frame and the groove, and the positioning column cannot be electrically connected to the steering wheel frame, so the indicator light will not be lit.

[0018] The detection column is connected to the spacing detection circuit. When the spline is connected to the detection column, the metal steering wheel skeleton is connected to the spacing detection circuit.

[0019] The detection column is connected to the speaker contact detection circuit, and the speaker contact detection circuit is used to detect whether the height of the speaker contact meets the requirements. When in use, the speaker cover containing the speaker is first connected to the speaker contact detection circuit, and then the speaker cover is installed on the steering wheel frame. Since the detection column is electrically connected to the speaker contact detection circuit, the metal steering wheel frame will also be electrically connected to the speaker contact detection circuit; press the speaker cover installed on the steering wheel frame, if the speaker contact height meets the requirements, the speaker contact will contact the steering wheel frame, so that the speaker contact and the steering wheel frame are electrically connected, and the speaker will sound; if the speaker contact height does not meet the requirements (the height is low), the speaker contact cannot contact and conduct with the steering wheel frame, and the speaker will not sound.

[0020] The horn contact detection circuit is connected to a horn indicator light. When the horn contact is electrically connected to the steering wheel frame, the horn indicator light is on; when the horn contact is not electrically connected to the steering wheel frame, the horn indicator light is off.

[0021] The utility model provides a multifunctional steering wheel testing platform which is easy to use and can test multiple items such as splines, the distance between splines and grooves, the height of horn contacts, etc., which greatly improves the steering wheel testing efficiency and reduces the steering wheel production cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0023] Figure 1 A schematic diagram of the steering wheel structure.

[0024] Figure 2 It is a schematic diagram of the structure of the utility model.

[0025] Figure 3 This is a schematic diagram of the detection column structure of the utility model.

[0026] Figure 4 This is a schematic structural diagram of the connection relationship between the detection column and the detection column sleeve of the utility model.

[0027] Figure 5 This is a schematic diagram of the utility model in use state.

[0028] Figure 6 This is a schematic diagram of the detection circuit principle of the utility model. DETAILED DESCRIPTION

[0029] like Figure 1 As shown, the steering wheel comprises a steering wheel skeleton 1 , which comprises a spline sleeve 11 and a groove 12 for installing a clock spring harness sheath, wherein the groove 12 is located at one side of the spline sleeve 11 .

[0030] like Figure 2-5As shown, the multifunctional steering wheel inspection platform includes a table top 2, on the upper surface of which a spline inspection column 5 and a positioning column 6 are arranged, as well as a plurality of support seats 3 for supporting the steering wheel. The spline inspection column 5 and the positioning column 6 are arranged between the plurality of support seats 3, and the spacing between the spline inspection column 5 and the positioning column 6 is matched according to the spacing between the spline sleeve 11 and the groove 12 on the steering wheel skeleton 1.

[0031] An external spline is provided at the head end of the spline detection column 5, and the external spline at the head end of the spline detection column 5 is matched with the internal spline of the spline sleeve 11, and the external spline and the internal spline can mesh with each other; a connecting column 51 is provided at the tail end of the spline detection column 5, and the diameter of the connecting column 51 is smaller than the diameter of the spline detection column 5, and the connecting column 51 is provided with a detection column sleeve 52, which is sleeved on the connecting column 51, and the diameter of the detection column sleeve 52 is smaller than the diameter of the spline detection column 5, and the table top 2 is provided with a connecting hole for the detection column sleeve 52 to pass through, and the detection column sleeve 52 is installed in the connecting hole and fixedly connected to the table top 2.

[0032] like Figure 4 As shown, the detection column sleeve 52 is provided with a screw hole 53, and a bolt is connected in the screw hole 53, so that the detection column sleeve 52 and the connecting column 51 are tightly connected.

[0033] like Figure 6 As shown, the spline detection column 5 is connected to the spacing detection circuit and the horn contact detection circuit, the spacing detection circuit is connected to the positioning column 6 and the spacing indicator light 7, the horn contact detection circuit is connected to the horn indicator light 8 and the horn contact, and the horn contact is located on the horn cover, and the horn cover will be installed on the steering wheel frame 1.

[0034] When the spline sleeve 11 of the steering wheel and the spacing between the spline sleeve 11 and the groove 12 meet the requirements, the head end of the spline detection column 5 can be inserted into the spline sleeve 11, and the external spline of the head end of the spline detection column 5 is meshed with the internal spline of the spline sleeve 11, and the steering wheel skeleton 1 is electrically connected to the spline detection column 5; the positioning column 6 can also be inserted into the groove 12, and the inner side of the positioning column 6 facing the steering wheel skeleton 1 abuts against the groove 12, and the positioning column 6 is electrically connected to the steering wheel skeleton 1. Since the spline detection column 5 is electrically connected to the positive pole of the power supply, the negative pole of the power supply is electrically connected to one end of the spacing indicator light 7, and the other end of the spacing indicator light 7 is electrically connected to the positioning column 6, when the spline detection column 5 and the positioning column 6 are both electrically connected to the steering wheel skeleton 1, the spacing indicator light 7 will be powered on and light up; when the spacing indicator light 7 is lit, the surface product meets the requirements.

[0035] If the spline sleeve 11 does not meet the requirements (small size or incorrect internal spline tooth shape), the end of the detection column cannot be inserted into the spline; if the distance between the spline sleeve 11 and the groove 12 is too large, the end of the spline detection column 5 cannot be successfully inserted into the spline sleeve 11 or the end of the positioning column 6 cannot be inserted into the groove 12; if the distance between the spline sleeve 11 and the groove 12 is too small, although the end of the spline detection column 5 can be inserted into the spline sleeve 11 and the end of the positioning column 6 can also be inserted into the groove 12, the inner side surface of the positioning column 6 facing the steering wheel skeleton 1 cannot abut against the groove 12 (there is a gap between the inner side surface and the groove 12), so that the positioning column 6 cannot be electrically connected to the steering wheel skeleton 1, and the spacing indicator light 7 will not be lit. In summary, the detection of the spline and the spacing between the spline and the groove is achieved.

[0036] The horn contact of the horn cover is electrically connected to one end of the horn indicator light 8, the other end of the horn indicator light 8 is electrically connected to the negative electrode of the power supply, and the positive electrode of the power supply is electrically connected to the spline detection column 5; when the spline sleeve 11 of the steering wheel and the spacing between the spline sleeve 11 and the groove 12 meet the requirements, the steering wheel can fall on the support seat 3, the spline detection column 5 is electrically connected to the steering wheel frame 1, and the horn cover is installed on the steering wheel frame 1. When the height of the horn contact meets the requirements, the horn cover is pressed, and the horn contact will contact the steering wheel frame 1, so that the horn contact and the spline detection column 5 are electrically connected, the horn is powered on and sounds, and the horn indicator light 8 is powered on and lights up. When the horn sounds or the horn indicator light 8 lights up, it means that the height of the horn contact meets the requirements; if the horn contact does not meet the requirements (the height is low), the horn contact cannot contact the steering wheel frame, so that the horn contact and the steering wheel frame cannot be electrically connected, the horn will not sound, and the horn indicator light 8 will not light up; in summary, the detection of the horn contact height is achieved.

[0037] The above embodiments do not limit the present invention in any way, and any technical solutions obtained by equivalent replacement or equivalent transformation fall within the protection scope of the present invention.

Claims

1. A multifunctional steering wheel testing platform, characterized in that: It includes a spline detection module, a positioning column is arranged on one side of the spline detection module, and the distance between the positioning column and the spline detection module is used to detect the distance between the spline and the groove; the spline detection module includes a detection column, and an external spline is arranged on the end of the detection column, and the external spline of the detection column is used to engage with the internal spline of the spline sleeve.

2. A multifunctional steering wheel testing platform according to claim 1, characterized in that: The testing platform is provided with a supporting seat for supporting the steering wheel skeleton.

3. The multifunctional steering wheel testing platform according to claim 1, characterized in that: The detection column is provided with a connecting column at the tail end, the diameter of the connecting column is smaller than the diameter of the detection column, and the detection platform is provided at a connecting hole for the connecting column to pass through, the diameter of the connecting hole is smaller than the diameter of the detection column.

4. A multifunctional steering wheel testing platform according to claim 3, characterized in that: The connecting column is connected to the detection platform through a detection column sleeve, the connecting column is connected in the detection column sleeve, and the diameter of the detection column sleeve is smaller than the diameter of the detection column.

5. The multifunctional steering wheel testing platform according to claim 4, characterized in that: The detection column sleeve is provided with a screw hole, and a bolt is connected in the screw hole, and the bolt fastens the connecting column and the detection column sleeve.

6. The multifunctional steering wheel testing platform according to claim 1, characterized in that: The positioning column is connected to a spacing detection circuit, and the spacing detection circuit is connected to a spacing warning device.

7. The multifunctional steering wheel testing platform according to claim 6, characterized in that: The detection column is connected to the spacing detection circuit.

8. The multifunctional steering wheel testing platform according to claim 1, characterized in that: The detection column is connected to the speaker contact detection circuit.

9. The multifunctional steering wheel testing platform according to claim 8, characterized in that: The speaker contact detection circuit is connected to a speaker indicator light.

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