Connecting structure of automobile control arm and spherical hinge

Abstract

The utility model relates to the field of automobile parts, and discloses an automobile control arm and spherical hinge connecting structure, which comprises a spherical hinge, a control arm body and a sleeve, the control arm is provided with a mounting hole for mounting the sleeve, the spherical hinge is pressed in the sleeve, and the control arm body comprises a first plate body and a second plate body which are parallel to each other. The mounting hole penetrates through the first plate body and the second plate body, a baffle abutting against the second plate body is arranged at one end of the sleeve, and the other end of the sleeve is connected to the first plate body in a spin riveting mode and forms a flange outside the first plate body. The control arm can solve the problems that in the prior art, a sleeve, used for installing a spherical hinge, on the control arm is fixed in a welding mode, deformation caused by welding leads to poor installation accuracy of the spherical hinge, and rotation and swing smoothness is poor after the spherical hinge is installed.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of automobile parts, concretely relates to a kind of automobile control arm and ball hinge connecting structure. BACKGROUND

[0002] Suspension system is the connecting system between wheel, vehicle body and frame, including elastic element, guiding mechanism and shock absorber, and control arm is one of guiding mechanism element.In the process of automobile driving, due to the vibration caused by road change and the need of steering, wheel will certainly jump up and down and swing left and right, and the force generated by wheel movement will be partly transmitted to vehicle body through control arm, so the performance of control arm will directly affect the safety, comfort and control stability of automobile, so that control arm must have certain stiffness and reliability.

[0003] Control arm is connected with knuckle through ball hinge, and ball hinge is usually installed on control arm.In prior art, mounting hole is machined on control arm, then a sleeve is positioned in mounting hole, the both ends of sleeve extend outside the surface of control arm, then sleeve outer wall and control arm are fixedly connected by welding, and ball hinge is assembled into sleeve by press fitting.This way, because control arm is formed by plate assembly welding, the deformation caused by welding seam in sleeve welding installation process leads to that the roundness of mounting hole inside sleeve for installing ball hinge is not high, the axial position degree of mounting hole is poor, so that the installation accuracy of ball hinge is poor, and the rotation and swing smoothness of ball hinge after installation is poor. SUMMARY

[0004] The utility model intends to provide a kind of automobile control arm and ball hinge connecting structure, to solve the problem that sleeve for installing ball hinge on control arm in prior art is welded fixed, and the deformation caused by welding leads to that the installation accuracy of ball hinge is poor, and the rotation and swing smoothness of ball hinge after installation is poor.

[0005] To achieve the above object, the utility model adopts the following technical scheme: a kind of automobile control arm and ball hinge connecting structure, including ball hinge, control arm body and sleeve, control arm is equipped with the mounting hole for installing sleeve, ball hinge is press fitted in sleeve, control arm body includes parallel first plate body and second plate body, mounting hole penetrates first plate body and second plate body, one end of sleeve is equipped with the baffle that is resisted with second plate body, the other end of sleeve is riveting connection on first plate body and forms baffle edge outside first plate body.

[0006] Preferably, as an improvement, the height of baffle and baffle edge is less than or equal to 3mm.

[0007] Preferably, as an improvement, there is riveting groove around mounting hole on first plate body by stamping forming.

[0008] Preferably, as an improvement, the sleeve comprises a tubular body with an axial equal inner diameter, one end of the tubular body is provided with an outwardly turned baffle, and the other end of the tubular body is provided with a step on the outer periphery, the step has a width of 1 mm, and the radius of the mounting hole on the first plate body is smaller than the radius of the mounting hole on the second plate body by 1 mm.

[0009] Preferably, as an improvement, the surfaces of the baffle and the baffle edge exposed outside the control arm are smooth curved surfaces.

[0010] The advantages of the present application include:

[0011] 1. The connection and installation between the sleeve and the control arm are completed by means of spin riveting connection, thereby avoiding deformation of the control arm plate body and the sleeve caused by the welding process, ensuring the structural precision of the control arm mounting hole and the sleeve, ensuring the accuracy of the roundness and axial position of the mounting hole for installing the ball hinge, and ensuring smooth rotation and swing of the ball hinge after installation.

[0012] 2. The special sleeve structure and the control arm structure are adopted, the operation of spin riveting connection is facilitated, the step on the sleeve is matched with the size of the two mounting holes on the control arm, the first plate body is positioned and supported through the step, and then the stable and smooth spin riveting connection is ensured, and the stable and reliable connection between the sleeve and the control arm is ensured.

[0013] 3. The surfaces of the baffle and the baffle edge exposed outside the control arm are smooth curved surfaces after spin riveting connection, which has a guiding effect in the press-fitting process of the ball hinge, ensures smooth press-fitting of the ball hinge, and the height of the baffle and the baffle edge is limited to not more than 3 mm, which further makes the rotation and swing of the ball hinge after press-fitting have good smoothness. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a top view of the axial measurement drawing of the embodiment of the present application.

[0015] Figure 2 It is a bottom view of the axial measurement drawing of the embodiment of the present application.

[0016] Figure 3 It is a sectional view of the sleeve in the embodiment of the present application. DETAILED DESCRIPTION

[0017] The following will be further described in detail through specific embodiments:

[0018] The reference signs in the drawings of the specification include: the first plate body 1, the second plate body 2, the sleeve 3, the baffle 4, the baffle edge 5, the spin riveting groove 6, and the step 7.

[0019] The embodiment is basically as shown in the accompanying drawings Figure 1 , Figure 2As shown: a kind of automobile control arm and ball hinge connecting structure, including ball hinge, control arm body and sleeve 3, control arm is equipped with the mounting hole for installing sleeve 3, ball hinge is pressed into sleeve 3.Control arm body includes parallel first plate body 1 and second plate body 2, mounting hole penetrates first plate body 1 and second plate body 2, the radius of mounting hole on first plate body 1 is less than the radius of mounting hole on second plate body 2 by 1mm.First plate body 1 is stamped and formed with the riveting groove 6 around mounting hole.As Figure 3 As shown, sleeve 3 includes the pipe body of axial equal internal diameter, one end of pipe body is equipped with the baffle 4 that is outwardly rolled, the outer circumference of the other end of pipe body is processed with step 7, the width of step 7 is 1mm, baffle 4 is in abutment with second plate body 2, sleeve 3 is connected in first plate body 1 after passing through mounting hole and forms the flange 5 on the outside of first plate body 1.

[0020] The height of baffle 4 and flange 5 is less than or equal to 3mm, the surface of baffle 4 and flange 5 exposed on the outside of control arm is smooth curved surface.

[0021] Specific implementation process is as follows: sleeve 3 is passed from second plate body 2 to the outside of first plate body 1, baffle 4 is in abutment with second plate body 2, step 7 on sleeve 3 is in abutment with the inside of first plate body 1, then the end of sleeve 3 exposed on the outside of first plate body 1 is riveted on riveting machine, the riveting groove 6 on first plate body 1 provides the space of riveting, the riveting head of riveting machine rotates in riveting groove 6 and rivets the end of sleeve 3 exposed on first plate body 1, the inside of first plate body 1 is supported by step 7 of sleeve 3 during riveting.Riveting is completed, sleeve 3 is riveted on control arm through baffle 4 and flange 5, the surface of baffle 4 and flange 5 exposed on the outside of control arm is smooth curved surface.Then when installing ball hinge, ball hinge is pressed into sleeve 3, the surface of baffle 4 and flange 5 can also provide certain guiding effect during pressing, so that ball hinge is pressed smoothly.The ball hinge that is pressed is completed, and rotation and swing have good smoothness.Such control arm and ball hinge connecting structure avoids the deformation influence caused by welding in prior art, has good assembly process, high structural precision, and ball hinge runs smoothly.

[0022] The above-mentioned is only the embodiment of the present application, and the specific technical scheme and / or common knowledge of the scheme are not described in detail herein.It should be noted that, for those skilled in the art, without departing from the technical scheme of the present application, a number of modifications and improvements can be made, which should also be considered as the protection scope of the present application, which will not affect the effect and practicality of the present application.The protection scope of the present application should be based on the content of its claims, and the specific implementation mode and the like in the specification can be used to explain the content of the claims.

Claims

1. A connection structure between an automobile control arm and a ball hinge, comprising a ball hinge, a control arm body, and a sleeve. The control arm is provided with a mounting hole for mounting the sleeve, and the ball hinge is press-fitted into the sleeve. The structure is characterized in that: The control arm body comprises a first plate body and a second plate body in parallel, the mounting hole penetrates through the first plate body and the second plate body, one end of the sleeve is provided with a baffle abutting against the second plate body, and the other end of the sleeve is spin riveted on the first plate body and forms a baffle outside the first plate body.

2. The automobile control arm and ball joint connecting structure according to claim 1, characterized in that: The height of the baffle and the baffle is less than or equal to 3mm.

3. The automobile control arm and ball joint connecting structure according to claim 2, characterized in that: A spin rivet groove is formed on the first plate body around the mounting hole.

4. The automobile control arm and ball joint connecting structure according to claim 3, characterized in that: The sleeve comprises a pipe body with an equal inner diameter in the axial direction, one end of the pipe body is provided with an outwardly rolled baffle, and the other end of the pipe body is provided with a step on the outer circumference, the width of the step is 1mm, and the radius of the mounting hole on the first plate body is 1mm smaller than the radius of the mounting hole on the second plate body.

5. The automobile control arm and ball joint connecting structure according to claim 4, characterized in that: The surfaces of the baffle and the baffle exposed outside the control arm are smooth curved surfaces.

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