Testing device for bushing

Abstract

The utility model relates to a testing device for a bushing, and the device comprises a driving part which is used for providing a circumferential driving force; the cam is connected to the driving end of the driving part and does circular motion along the axis of the driving end; the movable parts are oppositely arranged at the top of the cam and do opposite reciprocating motion along the axis direction of the cam through the motion of the cam; the thread clamping mechanism is used for clamping a to-be-tested workpiece and is arranged above the movable part; and the quasi-axis piece is used for being connected with a clamped workpiece to be detected and horizontally abuts against the top end of the movable piece. According to the utility model, through the arrangement of the cam which rotates in the circumferential direction and the movable part which is matched with the cam, when the cam moves, the movable part can do reciprocating motion along the axial direction of the movable part, so that the quasi-axis part which is propped against the top end of the movable part can be pushed to do intermittent lever motion, and radial pressure is applied to the bushing which is connected to the quasi-axis part; and the deformation state and the service life of the bushing under radial pressure can be tested.

Description

Technical Field

[0001] This utility model belongs to the field of testing equipment technology, and specifically relates to a testing device for bushings. Background Technology

[0002] As a vital tool of modern transportation, the performance and safety of automobiles are of paramount importance. Automotive bushings, as key components in automobile parts, play an indispensable role in various automotive systems.

[0003] Automotive bushings are widely used in automotive suspension systems, steering systems, transmission systems, and engine mounts. In the suspension system, bushings connect suspension components to the vehicle body, effectively cushioning impacts from uneven road surfaces, reducing vibration transmission, and ensuring vehicle stability and comfort. In the steering system, bushings help maintain the precision and agility of the steering mechanism, ensuring the driver can accurately control the vehicle's direction. In the transmission system and engine mounts, bushings reduce vibration and noise during power transmission, extending the lifespan of related components.

[0004] With the continuous development of the automotive industry, the requirements for vehicle performance and reliability are getting higher and higher. Therefore, effective testing of bushings before production and delivery is an essential step in improving bushing quality.

[0005] Radial pressure is a significant load that automotive bushings frequently experience during operation. As a vehicle travels, road bumps, centrifugal force during steering, and inertial forces during acceleration and braking all subject the bushings to varying degrees of radial pressure. Therefore, radial pressure testing of automotive bushings is of great importance.

[0006] In view of this, the present invention provides a testing device for bushings to meet the requirements for radial pressure testing of bushings. Utility Model Content

[0007] To achieve the above objectives, this utility model provides the following technical solution: a testing device for bushings, comprising:

[0008] Drive components are used to provide circumferential driving force;

[0009] A cam is connected to the drive end of the drive component and moves in a circular motion along the axis of the drive end.

[0010] The movable component is disposed opposite to the top of the cam, and reciprocates in the opposite direction along the axis of the cam by the movement of the cam.

[0011] A threaded clamping mechanism for clamping the workpiece to be measured is disposed above the movable part;

[0012] The pseudo-shaft component is used to connect with the workpiece to be tested. When the workpiece to be tested is clamped by the threaded clamping mechanism, the axis of the pseudo-shaft component is perpendicular to the axis of the movable component. When the movable component reciprocates, the top end of the movable component intermittently abuts against the periphery of the pseudo-shaft component, so that the pseudo-shaft component performs lever movement.

[0013] As a preferred embodiment of the present invention for testing bushings, it further includes a base and a frame mounted on the top surface of the base.

[0014] As a preferred embodiment of the present invention for a test device for bushings, the driving component is mounted on the bottom surface of the base, and its output end extends through the top surface of the base and is connected to the cam.

[0015] As a preferred embodiment of the present invention for a test device for bushings, the top surface of the frame is provided with oppositely arranged through holes, and the bottom end of the movable part moves through the through holes and abuts against the top of the cam.

[0016] As a preferred embodiment of the present invention for a test device for bushings, the threaded clamping mechanism is connected to the top surface of the frame and located between the oppositely arranged through holes.

[0017] As a preferred embodiment of the testing device for bushings according to this utility model, the cam is a cylindrical structure with an inclined surface at the top.

[0018] As a preferred embodiment of the testing device for bushings according to this utility model, the bottom end of the movable part has an arc-shaped structure.

[0019] As a preferred embodiment of the present invention for a test device for bushings, the threaded clamping mechanism includes a base and a clamping part for clamping with the base, wherein a groove is provided on the surface of the base;

[0020] Inside the slide groove, a lead screw is rotatably provided along its extension direction, and one end of the clamping part extends movably into the slide groove and is threadedly connected to the lead screw.

[0021] Compared with the prior art, the beneficial effects of this utility model are:

[0022] This invention features a cam that rotates circumferentially and a movable component that works in conjunction with the cam. When the cam moves, the movable component reciprocates along its axial direction, thereby pushing a pseudo-shaft component that abuts against the top of the movable component to perform intermittent lever motion. This applies radial pressure to the bushing connected to the pseudo-shaft component, thus testing the deformation state and service life of the bushing under radial pressure. Attached Figure Description

[0023] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0024] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0025] Figure 2 This is a front view structural schematic diagram of the frame of this utility model after cross-section;

[0026] Figure 3 This is a schematic diagram of the threaded clamping mechanism of this utility model;

[0027] Figure 4 This is a schematic diagram of the movement structure of the moving parts during bushing testing according to this utility model.

[0028] In the figure: 1. Base; 2. Frame; 3. Drive component; 4. Cam; 5. Moving component; 6. Threaded clamping mechanism; 601. Base; 602. Slide groove; 603. Clamping part; 604. Lead screw; 7. Shaft component; 8. Bushing body. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] This utility model relates to a testing device for bushings, such as... Figures 1-2 As shown, it includes a base 1, a frame 2 mounted on the top surface of the base 1, a drive component 3 mounted on the bottom surface of the base 1, a cam 4 connected to the drive end of the drive component 3, and a movable component 5 that moves through the top surface of the frame 2 along the axial direction of the cam 4; it also includes a threaded clamping mechanism 6 mounted on the top surface of the frame 2 for clamping the workpiece to be measured, and a pseudo-shaft component 7 for axially connecting with the clamped workpiece to be measured.

[0031] In this embodiment, the base 1 and the frame 2 are both stacked and mounted in an inverted "U" shape.

[0032] Specifically, the top surface of the frame 2 has through holes that are not marked in the diagram, and the threaded clamping mechanism 6 is located at the center between the through holes. The cam 4 is a cylindrical structure with a sloping top. The cam 4 rotates circumferentially in one direction along its axis. Its rotation is driven by the drive member 3. In this embodiment, the drive member 3 is a motor. Its movable end passes through the top surface of the base 1 and is axially fixedly connected to the bottom end of the cam 4 to drive the cam 4 to rotate. There are two sets of movable members 5. The bottom ends of the two sets of movable members 5 respectively move through the through holes and abut against the sloping top surface of the cam 4. When the cam 4 rotates, under the action of its sloping top surface, it can drive the two sets of movable members 5 to move back and forth in opposite directions along the axis of the cam 4.

[0033] Furthermore, in order to reduce the friction between the movable part 5 and the top inclined surface of the cam 4, the bottom end of the movable part 5 is designed as a hemispherical arc structure, which allows the bottom of the movable part 5 to make point contact with the top inclined surface of the cam 4.

[0034] like Figure 3 As shown, in this embodiment, the threaded clamping mechanism 6 includes an "L"-shaped base 601 and a "T"-shaped clamping part 603 for clamping with the base 601. The surface of the base 601 has a groove 602 extending along its "L"-shaped deformation. Inside the groove 602, a lead screw 604 is rotatably mounted via a bearing along its extending direction. One end of the lead screw 604 extends out of the base 601, and a protruding end of the "T"-shaped clamping part 603 extends into the groove 602 and is threadedly connected to the lead screw 604. In use, by rotating the lead screw 604, the clamping part 603 can slide along the extending direction of the groove 602 under the action of the thread, adjusting the distance between it and the edge of the base 601 to form a clamping structure for clamping the workpiece. It should be noted that when the threaded clamping mechanism 6 clamps the workpiece, the axial direction of the workpiece is perpendicular to the direction of movement of the movable part 5.

[0035] In this embodiment, the pseudo-shaft member 7 is a cylindrical structure that can be tightly inserted into the workpiece axially. Simultaneously, when the workpiece is clamped and fixed by the threaded clamping mechanism 6, the periphery of the pseudo-shaft member 7 abuts against the top end of the movable member 5. Therefore, when the movable member 5 reciprocates, the pseudo-shaft member 7 can perform lever motion with the center of the workpiece as the fulcrum.

[0036] Taking the testing of automotive bushings as an example, during use, if... Figure 4 As shown, the pseudo-shaft component 7 is first inserted axially into the inner ring of the bushing body 8, i.e., inside the mandrel sleeve. To ensure balance, the bushing body 8 needs to be centered.

[0037] The bushing with the pseudo-shaft 7 connected is clamped and fixed on the threaded clamping mechanism 6. At this time, the pseudo-shaft 7 is horizontally positioned above the movable part 5, and its periphery abuts against the top of the movable part 5. When the driving part 3 drives the cam 4 to rotate, under the action of the inclined surface of the cam 4, the two sets of movable parts 5 reciprocate in opposite directions. When a set of movable parts 5 rises, it can lift up the corresponding end of the pseudo-shaft 7 to apply radial pressure to one end of the bushing body 8. Through the continuous reciprocating motion of the movable parts 5, the pseudo-shaft 7 continuously performs lever motion to test the deformation state and service life of the bushing body 8 under radial pressure, so as to provide reliable support for improving the quality of the bushing.

[0038] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A testing device for a bushing, characterized by, The utility model provides a kind of test device for workpiece, including: Driving member (3) for providing circumferential driving force; Cam (4) is connected in the driving end of the driving member (3), and it moves along the axis of the driving end; Movable member (5) is oppositely arranged on the top of the cam (4), and moves along the axis of the cam (4) in the opposite reciprocating motion by the movement of the cam (4); Thread clamping mechanism (6) for clamping workpiece to be measured is arranged above the movable member (5); Pseudo-axis member (7) is used for connecting with workpiece to be measured, when workpiece to be measured is clamped by thread clamping mechanism (6), the axis of pseudo-axis member (7) is perpendicular to the axis of movable member (5), so that the top end of movable member (5) intermittently abuts the circumferential side of pseudo-axis member (7) when the movable member (5) moves reciprocatingly, so that pseudo-axis member (7) moves in lever motion.

2. A testing device for a bushing according to claim 1, characterized in that: It also includes base (1) and frame (2) erected on the top surface of the base (1).

3. A testing device for a bushing according to claim 2, characterized in that: The driving member (3) is installed on the bottom surface of the base (1), and its output end penetrates the top surface of the base (1) and is connected with the cam (4).

4. A testing device for a bushing according to claim 3, characterized in that: The top surface of the frame (2) is provided with oppositely arranged through holes, and the bottom end of the movable member (5) is movably penetrated through the through hole and abuts against the top of the cam (4).

5. A testing device for a bushing according to claim 4, characterized in that: The thread clamping mechanism (6) is connected to the top surface of the frame (2) and located between the oppositely arranged through holes.

6. The testing device for a bushing of claim 1, wherein: The cam (4) is a cylindrical structure with inclined surface on the top.

7. The testing device for a bushing of claim 1, wherein: The bottom end of the movable member (5) is arc-shaped structure.

8. The testing device for a bushing of claim 1, wherein: The thread clamping mechanism (6) includes a base (601) and a clamping portion (603) for clamping with the base (601), and the surface of the base (601) is provided with a sliding groove (602); A lead screw (604) is rotatably arranged inside the sliding groove (602) and along its extension direction, and one end of the clamping portion (603) movably extends into the sliding groove (602) and is threadedly connected with the lead screw (604).

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