Fixing clamp for steering wheel angle torque measurement

Abstract

The utility model provides a fixing clamp for measuring the angle torque of a steering wheel, and the clamp comprises a fixed seat which comprises a central frame and a plurality of groups of connecting seats which are distributed at the periphery of the central frame; the sliding assembly comprises a sliding frame and a connecting groove formed in the sliding frame; a guide hole is formed in the sliding frame, the guide hole is matched with a guide rod arranged on the center frame, the guide rod is inserted into the guide hole, and the connecting base is clamped into the connecting groove; a clamping ring used for fixing a steering wheel is arranged at the end, away from the fixing base, of the sliding assembly. According to steering wheels of different specifications, only the distance between the sliding assembly and the center frame needs to be properly adjusted, the distance between the sliding assembly and the center frame is adjusted by adjusting the screwing depth of the connecting screw rod in the fixing process, the clamping and fixing requirements of the steering wheels of different types are met, and the applicability of equipment is enhanced.

Description

Technical Field

[0001] The utility model belongs to the field of steering wheel angle measurement jigs, and particularly relates to a fixing jig for measuring the steering wheel angle and torque. Background Art

[0002] The basic working principle of the electric power steering system EPS is that the EPS controller controls the motor to generate steering assistance according to signals such as the steering wheel torque, steering wheel angle, and vehicle speed collected by sensors. Therefore, we need to use professional equipment to measure and analyze the steering wheel angle and torque state to facilitate corresponding calibration of the EPS controller.

[0003] During the measurement process, a special fixture is needed to connect the steering wheel with the torque measurement device. In the prior art, most fixtures adopt a single-structure design and can only fix and clamp one type of steering wheel. After the test vehicle model is changed, corresponding fixtures need to be used to complete the subsequent measurement, which not only increases the fixture replacement time but also increases the equipment investment cost. Currently, there is a lack of a fixture with wide adaptability to meet the fixing needs during the steering wheel torque test. Summary of the Utility Model

[0004] The utility model provides a fixing jig for measuring the steering wheel angle and torque, aiming to solve the problem that the current fixture has poor adaptability and cannot meet the fixing needs during the torque test of steering wheels with different specifications.

[0005] The utility model is realized as follows. A fixing jig for measuring the steering wheel angle and torque includes:

[0006] A fixed seat, the fixed seat includes a central frame and a plurality of groups of connecting seats distributed on the periphery of the central frame;

[0007] A sliding component, the sliding component includes a sliding frame and a connecting groove provided on the sliding frame;

[0008] A guiding hole is provided on the sliding frame, the guiding hole is adapted to a guiding rod provided on the central frame, the guiding rod is inserted into the guiding hole, and the connecting seat is engaged into the inside of the connecting groove;

[0009] A snap ring for fixing the steering wheel is provided at one end of the sliding component away from the fixed seat.

[0010] Preferably, the sliding component further includes a connecting screw;

[0011] A connecting hole is further provided on the sliding frame, the connecting hole penetrates through the sliding frame and communicates with the connecting groove, and the connecting screw is inserted into the connecting hole from one end of the sliding frame away from the central frame and extends to the connecting groove.

[0012] Preferably, an installation hole is provided on the connecting seat, and the installation hole is aligned with the connecting hole;

[0013] When the connection base is engaged into the connection groove, the connection screw rod passing through the connection hole is threadedly connected to the installation hole.

[0014] Preferably, a connection cushion block is provided on the sliding frame, and the snap ring is connected to the connection cushion block by bolts.

[0015] Preferably, the number of the guide rods is not less than two groups.

[0016] Preferably, the guide rods are respectively on both sides of the connection base, and the positions of the guide holes and the connection holes correspond to the positions of the guide rods and the connection base.

[0017] Preferably, the outer shape of the center frame is hexagonal, and the connection bases are spacedly distributed on the non-adjacent edges of the center frame.

[0018] Compared with the prior art, the embodiments of the present application mainly have the following beneficial effects:

[0019] 1. The fixed fixture for measuring the steering wheel corner torque provided by the present utility model adopts a sliding connection mode between the moving component and the fixed seat. For steering wheels of different specifications, only the distance between the sliding component and the center frame needs to be appropriately adjusted. During the fixing process, the depth of the connection screw rod screwed in is adjusted to adapt to the distance adjustment between the sliding component and the center frame, meeting the clamping and fixing requirements of different types of steering wheels and enhancing the applicability of the device.

[0020] 2. The fixed fixture for measuring the steering wheel corner torque provided by the present utility model realizes the connection between the sliding component and the center frame through the sliding component itself relying on not less than two groups of guide rods. Under the action of the guide rods, the centrifugal force generated during the rotation process is countered, improving the structural strength between the sliding component and the center frame; and the connection screw rod will further enhance the structural strength between the sliding component and the center frame. Brief Description of the Drawings

[0021] Figure 1 is a schematic structural diagram of a fixed fixture for measuring the steering wheel corner torque provided by the present utility model.

[0022] Figure 2 is a schematic structural diagram of the fixed seat of a fixed fixture for measuring the steering wheel corner torque provided by the present utility model.

[0023] Figure 3 is a schematic structural diagram of the sliding component of a fixed fixture for measuring the steering wheel corner torque provided by the present utility model.

[0024] Figure 4 is a schematic structural diagram of the middle sliding frame of a fixed fixture for measuring the steering wheel corner torque provided by the present utility model.

[0025] Figure 5 This is a schematic structural diagram of a calibration component for a fixed fixture used to measure the steering wheel angle torque provided by the present utility model.

[0026] Explanation of reference numerals:

[0027] 100, fixed seat; 110, center frame; 111, connection end; 120, connection seat; 121, mounting hole; 130, guide rod;

[0028] 200, sliding component; 210, sliding frame; 211, guide hole; 212, connection hole; 220, connection groove; 230, connection screw; 240, connection pad; 250, snap ring;

[0029] 300, calibration component; 310, suction cup; 320, first universal joint; 330, taper head; 340, second universal joint; 350, connecting rod. Detailed implementation manners

[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which this application belongs; the terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above drawings are intended to cover non-exclusive inclusion. The terms "first", "second", etc. in the specification and claims of this application or the above drawings are used to distinguish different objects and not to describe a specific order.

[0031] Reference to "embodiment" herein means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of this application. The phrase appears at various places in the specification and does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art will explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0032] An embodiment of the present utility model provides a fixed fixture for measuring the steering wheel angle torque, as Figures 1-5 shown, the fixed fixture for measuring the steering wheel angle torque includes:

[0033] A fixed seat 100, the fixed seat 100 includes a center frame 110 and a plurality of groups of connection seats 120 distributed on the periphery of the center frame 110;

[0034] A sliding component 200, the sliding component 200 includes a sliding frame 210 and a connection groove 220 provided on the sliding frame 210;

[0035] The connecting seat 120 is adapted to the connecting groove 220. A guiding hole 211 is provided on the sliding frame 210, and the guiding hole 211 is adapted to the guiding rod 130 provided on the central frame 110. The guiding rod 130 is inserted into the guiding hole 211. When the sliding frame 210 approaches, the connecting seat 120 is snapped into the inside of the connecting groove 220. A snap ring 250 is provided at one end of the sliding assembly 200 away from the fixed seat 100. The snap ring 250 is used to fix the steering wheel.

[0036] In this application, the sliding assemblies 200 are distributed in a circumferential array around the fixed seat 100. During assembly, the sliding assemblies 200 are gradually pushed towards the fixed seat 100 by means of a sliding connection. After the snap ring 250 on the sliding assembly 200 completes the clamping of the steering wheel, the sliding assembly 200 is fastened by the connecting screw 230 provided on the sliding assembly 200, and the fixation of the steering wheel by the sliding assembly 200 is completed. In the fixed state, when the sliding assemblies 200 form a clamping force by aligning from the outside of the steering wheel, since the steering wheel itself is a ring structure with anti-deformation ability, the clamping force and the stress of the steering wheel itself will reach a balance. The steering wheel, the fixed seat 100 and the sliding assemblies 200 form an integral structure, and the fixation of the steering wheel by the steering wheel rotation torque measurement fixture is completed.

[0037] In the structure of this application, since the sliding assembly 200 and the fixed seat 100 adopt a sliding connection method, for steering wheels of different specifications, only the distance between the sliding assembly 200 and the central frame 110 needs to be appropriately adjusted. During the fixation process, the distance between the sliding assembly 200 and the central frame 110 is adjusted by adjusting the screwing depth of the connecting screw 230. The design features of the sliding structure of the sliding assembly 200 meet the clamping and fixing requirements for different types of steering wheels during the steering wheel test process, and enhance the applicability of the equipment.

[0038] The sliding assembly 200 itself is connected to the central frame 110 by no less than two guiding rods 130. Under the action of the guiding rods 130, the centrifugal force generated during rotation is countered, and the structural strength between the sliding assembly 200 and the central frame 110 is improved. And the connecting screw 230 will further enhance the structural strength between the sliding assembly 200 and the central frame 110.

[0039] As a preferred implementation in this embodiment, a connection hole 212 is further provided on the sliding frame 210; the connection hole 212 penetrates through the sliding frame 210 and communicates with the connection groove 220. The connection screw 230 is inserted into the connection hole 212 from one end of the sliding frame 210 away from the central frame 110 and extends into the connection groove 220; an installation hole 121 is provided on the connection seat 120. When the connection seat 120 is engaged into the connection groove 220, the installation hole 121 is aligned with the connection hole 212, and the connection screw 230 passing through the connection hole 212 is threadedly connected to the installation hole 121.

[0040] In this application, the connection screw 230 serves as a fixing member to complete the connection between the sliding assembly 200 and the fixed seat 100. During the assembly process, with the tightening effect of the connection screw 230, the snap ring 250 applies a squeezing force towards the axis to the steering wheel, completing the fixed clamping of the steering wheel.

[0041] As a preferred implementation in this embodiment, a connection cushion block 240 is provided on the sliding frame 210, and the snap ring 250 is connected to the connection cushion block 240 by bolts; the function of the connection cushion block 240 is to lift the position height of the snap ring 250 to avoid contact between the steering wheel plane and the central frame 110.

[0042] In this embodiment, a connection end 111 is provided on the central frame 110. The connection end 111 is a circular boss, and a plurality of groups of screw hole structures are provided on the boss for docking torque measurement equipment.

[0043] In a further preferred embodiment of the present utility model, the steering wheel angle torque measurement fixture is further equipped with a calibration assembly 300; the calibration assembly 300 includes a suction cup 310, a first universal joint 320, a tapered head 330, a second universal joint 340, and a connecting rod 350. The suction cup 310 is a pneumatic suction cup structure in the prior art and is driven by a manual pump or an electric compressor to adsorb on the central frame 110 during the assembly process by using the suction cup 310.

[0044] A column is further provided at one end of the suction cup 310 away from the adsorption surface. The first universal joint 320 is fixedly connected to the column by bolts. The two ends of the connecting rod 350 are respectively connected to the first universal joint 320 and the second universal joint 340. The tapered head 330 is provided on the second universal joint 340 away from the suction cup 310.

[0045] In this embodiment, the suction cup 310, the first universal joint 320, the tapered head 330, the second universal joint 340, and the connecting rod 350 are all structures adopted in the prior art. A scale is provided on the connecting rod 350. Before assembling the steering wheel, the calibration assembly 300 can be used to help the sliding assembly 200 to be positioned in advance. Mainly, the first universal joint 320 is fixed to the tapered head 330, the tapered head 330 is fixed to the second universal joint 340, and the connecting rod 350 is fixed to the first universal joint 320 and the second universal joint 340. By rotating between the first universal joint 320 and the column, the tapered head 330 can draw a circular trajectory on the outer periphery of the center frame 110. By adjusting

[0046] By controlling the screwing depth of the connecting screw 230, it is ensured that the distance between the assembled sliding assembly 200 and the center frame 110 remains consistent. Subsequently, the steering wheel is snapped into the snap ring 250; a highly viscous anti-slip material is provided on the snap ring 250, which can ensure that the snap ring 250 is in close contact with the steering wheel and will not easily shift and slide; the snap ring 250 can follow the movement of the steering wheel;

[0047] In a further preferred embodiment of the present invention, the outer shape of the center frame 110 is hexagonal, the connecting seats 120 are spaced apart on the non-adjacent edges of the center frame 110, and two groups of guide rods 130 are further provided on the edges of the center frame 110 where the connecting seats 120 are arranged. The guide rods 130 are distributed on both sides of the center frame 110;

[0048] It should be noted that for the foregoing embodiments, for the sake of simple description, they are all expressed as a series of action combinations. However, those skilled in the art should know that the present invention is not limited by the described action sequence, because according to the present invention, certain steps may be performed in other sequences or simultaneously. Secondly, those skilled in the art should also know that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily essential to the present invention.

[0049] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the protection scope of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on these embodiments, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of the present invention to be protected. Although the present invention has been described in detail with reference to the above embodiments, those of ordinary skill in the art can still, without conflict, make combinations, additions, deletions, or other adjustments to the features in the embodiments of the present invention according to the situation without creative efforts, so as to obtain different technical solutions that essentially do not deviate from the concept of the present invention. These technical solutions also fall within the scope of the present invention to be protected.

Claims

1. A fixing fixture for measuring steering wheel angle torque, characterized in that: include: A fixing seat, the fixing seat comprising a center frame and a plurality of groups of connecting seats distributed around the center frame; A sliding assembly, the sliding assembly comprising a sliding frame and a connecting groove provided on the sliding frame; The sliding frame is provided with a guide hole, the guide hole is adapted to the guide rod provided on the central frame, the guide rod is inserted into the guide hole, and the connecting seat is engaged with the inside of the connecting groove; The sliding assembly is provided with a snap ring for fixing the steering wheel at one end away from the fixing seat.

2. A fixing fixture for measuring steering wheel angle torque as claimed in claim 1, characterized in that: The sliding assembly also includes a connecting screw; The sliding frame is also provided with a connecting hole, which penetrates the sliding frame and is connected with the connecting groove. The connecting screw is inserted into the connecting hole from one end of the sliding frame away from the center frame and extends to the connecting groove.

3. A fixing fixture for measuring steering wheel angle torque as claimed in claim 2, characterized in that: The connecting seat is provided with a mounting hole, and the mounting hole is aligned with the connecting hole; When the connection seat is engaged in the connection groove, the connection screw passing through the connection hole is threadedly connected with the mounting hole.

4. A fixing fixture for measuring steering wheel angle torque as claimed in claim 3, characterized in that: The sliding frame is provided with a connecting pad, and the clamping ring is connected to the connecting pad via bolts.

5. A fixing fixture for measuring steering wheel angle torque as claimed in claim 4, characterized in that: The number of the guide rods is not less than two groups.

6. A fixing fixture for measuring steering wheel angle torque as claimed in claim 4, characterized in that: The guide rods are respectively located on both sides of the connecting seat, and the positions of the guide holes and the connecting holes correspond to the positions of the guide rods and the connecting seat.

7. A fixing fixture for measuring steering wheel angle torque as claimed in claim 5, characterized in that: The central frame has a hexagonal shape, and the connecting seats are distributed at intervals on non-adjacent edges of the central frame.

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