Bushing assembling equipment for automobile suspension lower swing arm

Abstract

The utility model relates to a lining assembling device for a lower swing arm of an automobile suspension, a base is U-shaped, a fixing structure for placing the lower swing arm is installed at one vertical end of the base, an installation structure for installing a lining is installed at the other vertical end of the base through a linear driving device, the linear driving device is fixedly installed on the base, and the lower swing arm is fixedly installed on the base. The installation structure comprises an installation head used for installing the lining, a clamping device is installed on the installation head, the installation head of the installation structure is in a frustum shape, the installation head is provided with a center threaded hole, the clamping device is installed on the installation head through the threaded hole, and the lining is installed between the installation head and the clamping device. The installation head can conveniently penetrate into the lower swing arm through the frustum shape of the installation head, meanwhile, the lower swing arm can be driven to generate small-distance displacement during penetrating through the installation head through the conical face of the installation head, and therefore the lower swing arm does not need to be clamped and fixed through a clamp, working steps are reduced, and meanwhile the problem that assembly is difficult due to clamping errors of the lower swing arm is solved.

Description

Technical Field

[0001] The utility model relates to the technical field related to automobile parts, and in particular to a bushing assembly device for an automobile suspension lower arm. Background Art

[0002] The swing arm is usually designed in an A-shape, which bears part of the lateral support force of the wheel and all the front and rear loads. Since the McPherson suspension is a straight-tube type, the car has a weak ability to resist lateral impact, poor anti-braking nodding effect, weak suspension stiffness, and obvious turning roll, which makes the lower arm bushing bear a large load when the car is turning or braking. If the bushing stiffness is not selected reasonably, the bushing will be fractured or fatigue-damaged when subjected to lateral and longitudinal shear forces; the lower arm bushing is connected to the subframe bolts, which causes stress concentration at the subframe bolt position. If the structural design is not good and the force at the bolt position cannot be effectively shared, it is easy to cause the sheet metal at the subframe bolt position to crack, reducing the fatigue life of the front suspension; the bushing is produced in two types: castings and assembly parts. The bushing of the assembly part is assembled by assembling the outer shell, rubber ring and inner shell. In the prior art, the staff presses it by knocking or manually placing it under a hydraulic press. The precision of the press is not high, which seriously affects the service life of the bushing of the lower arm. Utility Model Content

[0003] The main purpose of the utility model is to provide a bushing assembly device for a lower arm of an automobile suspension, which can effectively solve the problems in the background technology.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0005] A bushing assembly device for a lower arm of an automobile suspension comprises a base, wherein the base is in a "U" shape, a fixing structure for placing the lower arm is installed on one vertical end of the base, and a mounting structure for inserting the bushing is installed on the other vertical end of the base via a linear drive device, the linear drive device is fixedly mounted on the base, and the mounting structure comprises a mounting head for placing the bushing, and a clamping device is installed on the mounting head.

[0006] Furthermore, the mounting head comprises a head body, and a convex edge for accommodating a bushing is arranged on the end face of the head body located at the large diameter.

[0007] Furthermore, the clamping device includes a bolt, a core block is installed at one end of the bolt away from the head body, a slide rod is slidably installed on the core block, a first spring is installed between the slide rod and the core block, and a clamping block is installed at one end of the slide rod away from the first spring.

[0008] Furthermore, a fixed block is fixedly installed at the output end of the linear drive device, the fixed block includes a block body, a plurality of mounting holes are arranged on the end face of the block body away from the linear drive device, and a plurality of mounting rods cooperating with the mounting holes are arranged on the end face of the core block away from the bolt.

[0009] Furthermore, the fixing structure comprises an outer cylinder, the opening end surface of the outer cylinder is mounted on the base, a core shaft is slidably mounted in the outer cylinder, and a second spring is mounted between the core shaft and the outer cylinder.

[0010] The beneficial effects of the utility model are:

[0011] The mounting head of the device is in the shape of a cone, and is provided with a central threaded hole. A clamping device is installed on the mounting head through the threaded hole. The bushing is installed between the mounting head and the clamping device. The cone shape of the mounting head can facilitate the mounting head to penetrate into the lower swing arm. At the same time, the cone surface can drive the lower swing arm to produce a small distance displacement while passing through. With this arrangement, there is no need to clamp the lower swing arm with a clamp, which reduces the number of working steps and avoids the problem of assembly difficulties caused by the clamping error of the lower swing arm.

[0012] In the normal state of the device, the clamping block is in contact with the bushing, and a chamfer is provided on the clamping block for facilitating the insertion of the bushing. By utilizing the chamfer, during the insertion of the bushing, the bushing presses the chamfer provided on the clamping block through the inner wall, thereby facilitating the insertion of the bushing.

[0013] The number of mounting rods of the device is the same as the number of mounting holes. During the installation and removal of the bushing, the mounting structure can be fixed by simply inserting the mounting structure into the mounting hole. Since multiple mounting rods are provided, the multiple mounting rods cooperate with the mounting holes, and the two are subjected to mutual force to fix the mounting structure, which facilitates the installation and removal of the mounting structure, thereby facilitating the replacement of the bushing.

[0014] The core shaft of the device is coaxially arranged with the mounting head, and the diameter of the core shaft is smaller than the major diameter of the mounting head and larger than the minor diameter of the mounting head. During operation, the lower swing arm is hung on the core shaft 23, the linear drive device is started, and the mounting head is inserted into the lower swing arm through the conical surface minor diameter, and under the action of its conical surface, the mounting hole of the lower swing arm is made coaxial with the bushing, thereby completing the installation of the bushing. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall three-dimensional structure of a bushing assembly device for a lower arm of a vehicle suspension according to the utility model;

[0016] Figure 2 It is a schematic diagram of the overall cross-sectional structure of a bushing assembly device for a lower arm of an automobile suspension according to the utility model;

[0017] Figure 3It is a schematic diagram of the cross-sectional structure of the fixing structure of the bushing assembly device of the lower arm of the automobile suspension according to the utility model;

[0018] Figure 4 It is a three-dimensional structural schematic diagram of a fixing block of a bushing assembly device for a lower arm of an automobile suspension according to the utility model;

[0019] Figure 5 It is a three-dimensional structural schematic diagram of the installation structure of a bushing assembly device for a lower arm of an automobile suspension according to the utility model;

[0020] Figure 6 It is a three-dimensional structural schematic diagram of a mounting head of a bushing assembly device for a lower arm of an automobile suspension according to the utility model;

[0021] Figure 7 It is a three-dimensional structural schematic diagram of a clamping device of a bushing assembly device for a lower arm of an automobile suspension according to the utility model;

[0022] Figure 8 It is a schematic diagram of the cross-sectional structure of a clamping device of a bushing assembly device for a lower arm of an automobile suspension according to the utility model;

[0023] In the figure: base 1; fixing structure 2; outer cylinder 21; second spring 22; core shaft 23; linear drive device 3; fixing block 4; block body 41; mounting hole 42; mounting structure 5; mounting head 51; head body 511; flange 512; clamping device 52; bolt 521; core block 522; sliding rod 523; clamping block 524; first spring 525; mounting rod 53; bushing 6. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0025] Example 1

[0026] This embodiment discloses a bushing assembly device for a lower arm of a vehicle suspension, Figure 1 — Figure 8As shown, a bushing assembly device for a lower swing arm of an automobile suspension comprises a base 1, wherein the base 1 is in a "U" shape, a fixing structure 2 for placing the lower swing arm is installed on one vertical end of the base 1, and a mounting structure 5 for installing a bushing 6 is installed on the other vertical end of the base 1 through a linear drive device 3, wherein the linear drive device 3 can optionally use a hydraulic device, and the mounting structure 5 is in a frustum shape as a whole, and is installed at the output end of the linear drive device 3. The mounting structure 5 is driven by the linear drive device 3 to install the bushing 6 into the lower swing arm, and the linear drive device 3 is fixedly installed on the base 1, and is characterized in that: the mounting structure 5 comprises a mounting head 51 for placing the bushing 6, and the mounting head 51 is in a frustum shape, and the mounting head 51 is provided with The center threaded hole is provided with a clamping device 52 through the threaded hole on the mounting head 51, and the bushing 6 is installed between the mounting head 51 and the clamping device 52. The frustum shape of the mounting head 51 can facilitate the mounting head to penetrate into the lower swing arm, and at the same time, its conical surface can drive the lower swing arm to produce a small distance displacement while passing through. With this arrangement, there is no need to clamp the lower swing arm with a clamp, which reduces the number of working steps and avoids the problem of assembly difficulty caused by the clamping error of the lower swing arm. The mounting head 51 includes a head body 511, and the end face of the head body 511 located on the large diameter is provided with a flange 512 for accommodating the bushing 6, and the flange 512 is provided with a chamfer, which can facilitate the installation of the bushing 6, and the flange 512 plays a role in positioning the bushing 6.

[0027] The clamping device 52 includes a bolt 521, and a core block 522 is installed at one end of the bolt 521 away from the head body 511. The diameter of the core block 522 is smaller than the inner diameter of the bushing 6. A plurality of holes are arranged on the circumferential wall of the core block 522. A slide rod 523 is slidably installed on the hole arranged in the core block 522. A first spring 525 is installed between the slide rod 523 and the core block 522. The first spring 525 applies a thrust to the slide rod 523. A clamping block 524 is installed at one end of the slide rod 523 away from the first spring 525. Under normal conditions, the clamping block 524 is in contact with the bushing 6. A chamfer is arranged on the clamping block 524 for facilitating the installation of the bushing 6. By utilizing the chamfer, during the installation process of the bushing 6, the bushing 6 squeezes the chamfer arranged on the clamping block 524 through the inner wall, thereby facilitating the installation of the bushing 6.

[0028] Since it is troublesome to frequently install and remove the mounting structure 5 during the processing, a fixing block 4 is fixedly installed at the output end of the linear drive device 3. The fixing block 4 can be fixed to the output end of the linear drive device 3 by welding. The fixing block 4 includes a block body 41. The block body 41 is cylindrical. The end face of the block body 41 away from the linear drive device 3 is provided with a plurality of mounting holes 42. The end face of the core block 522 away from the bolt is provided with a plurality of mounting rods 53 cooperating with the mounting holes 42. The number of the mounting rods 53 is the same as the number of the mounting holes 42. During the loading and unloading process of the bushing 6, the mounting structure 5 only needs to be inserted into the mounting hole 42 to realize the fixation of the mounting structure. Since a plurality of mounting rods 53 are provided, and the plurality of mounting rods 53 cooperate with the mounting holes 42, the two are subjected to mutual force to realize the fixation of the mounting structure 5. Such a configuration facilitates the loading and removing of the mounting structure 5, thereby facilitating the replacement of the bushing 6.

[0029] The fixing structure 2 includes an outer cylinder 21, the open end surface of the outer cylinder 21 is installed on the base 1, and a through hole is provided on the base 1 to communicate with the inner cavity of the outer cylinder 21, and the diameter of the through hole is not less than the inner diameter of the outer cylinder 21. A core shaft 23 is slidably installed in the outer cylinder 21, and a second spring 22 is installed between the core shaft 23 and the outer cylinder 21. The core shaft 23 is coaxially arranged with the mounting head 51, and the diameter of the core shaft 23 is smaller than the major diameter of the mounting head 51 and larger than the minor diameter of the mounting head 51. When subjected to external compression, the core shaft 23 can be completely retracted into the outer cylinder 21. During operation, the lower swing arm is hung on the core shaft 23, and the linear drive device 3 is started. The mounting head 51 is inserted into the lower swing arm through the minor diameter of the conical surface, and under the action of its conical surface, the mounting hole of the lower swing arm is made coaxial with the bushing 6, thereby completing the installation of the bushing 6.

[0030] The circuits, electronic components and control modules involved are all prior art and can be fully implemented by those skilled in the art. Needless to say, the content protected by the utility model does not involve improvements to software and methods.

[0031] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A bushing assembly device for a lower arm of an automobile suspension, comprising a base (1), wherein the base (1) is in a "U" shape, a fixing structure (2) for placing the lower arm is installed on one vertical end of the base (1), and a mounting structure (5) for inserting a bushing (6) is installed on the other vertical end of the base (1) via a linear drive device (3), wherein the linear drive device (3) is fixedly mounted on the base (1), and is characterized in that: The mounting structure (5) comprises a mounting head (51) for arranging the bushing (6), and a clamping device (52) is mounted on the mounting head (51).

2. The bushing assembly equipment for the lower arm of automobile suspension according to claim 1 is characterized in that: The mounting head (51) comprises a head body (511), and a flange (512) for accommodating a bushing (6) is provided on the end surface of the head body (511) located at a large diameter.

3. The bushing assembly equipment for the lower arm of automobile suspension according to claim 1 is characterized in that: The clamping device (52) comprises a bolt (521), a core block (522) is installed at one end of the bolt (521) away from the head body (511), a slide rod (523) is slidably installed on the core block (522), a first spring (525) is installed between the slide rod (523) and the core block (522), and a clamping block (524) is installed at one end of the slide rod (523) away from the first spring (525).

4. The bushing assembly equipment for the lower arm of automobile suspension according to claim 3 is characterized in that: A fixed block (4) is fixedly mounted on the output end of the linear drive device (3), the fixed block (4) comprising a block body (41), a plurality of mounting holes (42) being arranged on the end face of the block body (41) away from the linear drive device (3), and a plurality of mounting rods (53) cooperating with the mounting holes (42) being arranged on the end face of the core block (522) away from the bolt.

5. The bushing assembly equipment for the lower arm of automobile suspension according to claim 1 is characterized in that: The fixed structure (2) comprises an outer cylinder (21), the open end surface of the outer cylinder (21) is mounted on the base (1), a core shaft (23) is slidably mounted inside the outer cylinder (21), and a second spring (22) is mounted between the core shaft (23) and the outer cylinder (21).

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