Straightening device for five-link rear axle housing

Abstract

The application discloses a straightening device for a five-connecting-rod rear axle housing, which comprises a straightening tool, two symmetrically arranged supporting seats for placing the rear axle housing, supporting seat pressing heads and V-shaped supports arranged on the supporting seats, connecting rods and guide rods arranged on the V-shaped supports, and a straightening tool arranged above the space between the two supporting seats, wherein the straightening tool comprises an upper connecting plate and two symmetrically arranged upper pressing heads. The straightening device can meet the straightening requirements of various types of axle housings, has a simple structure, and can avoid interference between accessory parts on the rear axle housing and the clamp.

Description

TECHNICAL FIELD

[0001] The present application belongs to the field of automobile rear axle processing, and particularly relates to a straightening device for a five-link rear axle housing. BACKGROUND

[0002] The five-link rear axle is a high-end suspension structure, which is connected with the vehicle body through a coil spring, a shock absorber and a trailing arm, so as to make the driving and riding stable and comfortable. However, there are many accessory parts on the five-link rear axle housing, and the accessory parts interfere with the fixture in the housing straightening process, so that most of the accessory parts can only be welded in the later process. However, the welding process will cause the two side arms and the rear axle ring to produce an angle, which will cause the end surface perpendicularity of the connecting flange of the rear axle housing to be poor, so that the vehicle is inclined outward, which affects the stability of the vehicle, and thus the rear axle housing needs to be straightened.

[0003] At present, in the traditional straightening device of the housing, only the V-shaped support with both ends fixed and the middle fixed pressure head are provided, which are only suitable for the rear axle housing product with few accessory parts. However, the five-link rear axle housing has many accessory parts, and thus the traditional housing straightening device cannot be used. SUMMARY

[0004] The present application aims at the deficiencies of the prior art, and provides a straightening device for a five-link rear axle housing, which is simple in structure and can avoid the interference between the fixture and the accessory parts on the rear axle housing.

[0005] The present application is achieved in the following manner:

[0006] A straightening device for a five-link rear axle housing comprises a straightening tool, two symmetrically arranged support seats for placing the rear axle housing, a support seat pressure head and a V-shaped support arranged on the support seat, a connecting rod and a guide rod arranged on the V-shaped support, a straightening tool arranged above the space between the two support seats, and an upper connecting plate and two symmetrically arranged upper pressure heads.

[0007] A through connecting hole is arranged in the center of the upper connecting plate, and two tracks are arranged on the lower end surface of the upper connecting plate, which are arranged in parallel on both sides of the connecting hole along the placing direction of the rear axle housing.

[0008] The upper pressure head is connected to the upper connecting plate by bolts and can be adjusted in position on the tracks.

[0009] A V-shaped groove is arranged on the contact end of the upper pressure head with the rear axle housing, which is used for matching the product structure.

[0010] The number of guide rods is two, which are arranged on the upper and lower sides of the connecting rod, and the V-shaped support and the two guide rods are integrally formed.

[0011] The support head is fixedly connected with the support base through bolts, and the outside of the support head is connected with a cylinder.

[0012] The connecting rod is provided with a threaded hole, and the connecting rod is fixedly connected with the V-shaped support through bolts, and the outside of the connecting rod is connected with a cylinder.

[0013] The cylinder is fixedly connected with the support base through bolts.

[0014] The beneficial effects of the present application are: a straightening device for a five-link rear axle housing is designed, the support head and the connecting rod are driven to extend and retract by the cylinder, when the cylinder is in a non-working state, the support head is retracted, and the V-shaped support is extended to support the rear axle housing and rotate to adjust to the position to be straightened; when the cylinder is in a working state, the cylinder is retracted, the support head is extended to insert into the inner hole of the rear axle housing as support, and the V-shaped support is retracted to avoid interference between the V-shaped support and the accessory parts on the rear axle housing. This set of straightening device is suitable for the rear axle housing products with more accessory parts, and can meet the straightening of various types of axle housings. BRIEF DESCRIPTION OF DRAWINGS

[0015] Fig. 1 It is a schematic view of the assembly of the straightening device for the five-link rear axle of the present application.

[0016] Fig. 2 It is a front view of the support base.

[0017] Fig. 3 It is a left view of the support base.

[0018] Fig. 4 It is a left view of the straightening tool. EMBODIMENT

[0019] The following will be further described in combination with the drawings and specific embodiments.

[0020] Reference Figs. 1 to 4An embodiment of the straightening device of five-link rear axle housing comprises two symmetrical support seats 1, one side support seat 1 is fixed on the oil press workbench through bolt connection, the position of the other side support seat 1 is adjusted according to the specific length of the rear axle housing 13, V-shaped support 3 and support head 2 fixed through bolt connection are arranged on the support seat 1, the V-shaped support 3 is integrally formed with two guide rods 5 and connecting rod 4, the two guide rods 5 are located on the upper and lower sides of the connecting rod 4, screw holes are arranged in the connecting rod, and the connecting rod is fixed on the V-shaped support 3 through bolt connection. A cylinder 6 is connected to the outer side of the support head 2 and the connecting rod 4, the cylinder 6 is fixed on the support seat 1 through bolt connection, the cylinder 6 drives the support head 2 and the V-shaped support 3 to stretch or retract, the cylinder 6 connected to the support head 2 and the cylinder 6 connected to the connecting rod 4 are connected to the same group of hand valve gas paths, the cylinder 6 connected to the support head 2 is connected to the air inlet of the hand valve gas path, the cylinder 6 connected to the connecting rod 4 is connected to the air outlet of the hand valve gas path, so that the support head 2 and the V-shaped support 3 are in opposite states of stretching out or retracting when the hand valve gas path is in a working state. When the cylinder 6 is not in a working state, the support head 2 retracts, and the V-shaped support 3 stretches out, which is used for supporting the rear axle housing 13 and rotating and adjusting to the position to be straightened. When the cylinder 6 is in a working state, the cylinder 6 retracts, the support head 2 stretches out, is inserted into the inner hole of the rear axle housing 13 as support, and the V-shaped support 3 retracts, so as to avoid interference between the V-shaped support 3 and the accessory parts on the rear axle housing 13. A straightening tool 7 is arranged above the space between the two support seats 1, the straightening tool 7 comprises an upper connecting plate 8 and two symmetrical L-shaped upper pressing heads 9, a connecting hole 10 is arranged in the center of the upper connecting plate 8 and is connected and fixed on the oil press, the upper connecting plate 8 is driven to move downward or upward by the oil press, two T-shaped tracks 11 are arranged in parallel on the two sides of the connecting hole 10 along the product placement direction, the upper pressing heads 9 are connected to the tracks 11 of the upper connecting plate 8 through bolt connection, the contact positions are adjusted according to different straightening stress points in the middle of the rear axle housing and avoiding accessory parts on the rear axle housing, V-shaped grooves 12 are arranged on the contact ends of the upper pressing heads 9 and the rear axle housing 13, which are used for matching the structure of the rear axle housing 13, and the problem that the fixture interferes with the accessory parts on the rear axle housing 13 and cannot be straightened is solved. When working, the straightening tool 7 is driven to move downward by the oil press to straighten, in the process of cyclically moving downward, the central position of the rear axle housing 13 is measured by using a height vernier caliper, the central positions of the two ends of the rear axle housing 13 are compared, and the product is qualified when the measurement tolerance is within ±0.5 mm.

[0021] The above only describes the embodiments of the present application, and the deformation and improvement made by the person skilled in the art without departing from the structure of the present application is also regarded as the protection range of the present application, and all other embodiments obtained by the person skilled in the art without creative labor belong to the protection range of the present application.

Claims

1. A straightening device for a five-link rear axle housing, comprising a straightening fixture (7) and two symmetrically arranged support seats (1) for placing the rear axle housing (13), characterized in that: The support base (1) is provided with a support pressure head (2) and a V-shaped support (3). The V-shaped support (3) is provided with a connecting rod (4) and a guide rod (5). A straightening fixture (7) is provided above the space between the two support bases (1). The straightening fixture (7) includes an upper connecting plate (8) and two symmetrically arranged upper pressure heads (9). A cylinder (6) is connected to the outside of the support head (2) and the connecting rod (4). The cylinder (6) is fixed to the support base (1) by bolts. The cylinder (6) is used to drive the support head (2) and the V-shaped support (3) to extend and retract. Then, the cylinder (6) connecting the support head (2) and the cylinder (6) connecting the connecting rod (4) are connected to the same set of manual valve air circuits. The cylinder (6) connecting the support head (2) is connected to the air inlet of the manual valve air circuit, and the cylinder (6) connecting the connecting rod (4) is connected to the air outlet of the manual valve air circuit. When the manual valve air circuit is in working state, the support head (2) and the V-shaped support 3 are in opposite states of extension or retraction.

2. The straightening device for the five-link rear axle housing according to claim 1, characterized in that: The upper connecting plate (8) has a through connecting hole (10) at its center, and two rails (11) are provided on the lower end face of the upper connecting plate (8). The two rails (11) are respectively located on both sides of the connecting hole (10) along the placement direction of the rear axle housing (13).

3. The straightening device for the five-link rear axle housing according to claim 2, characterized in that: The upper pressure head (9) is bolted to the upper connecting plate (8) and its position can be adjusted on the track (11).

4. The straightening device for the five-link rear axle housing according to claim 3, characterized in that: The upper pressure head (9) is provided with a V-shaped groove (12) at the contact end with the rear axle housing (13) to match the product structure.

5. The straightening device for the five-link rear axle housing according to claim 1, characterized in that: There are two guide rods (5), which are located on the upper and lower sides of the connecting rod (4). The V-shaped support (3) and the two guide rods (5) are integrally formed.

6. The straightening device for the five-link rear axle housing according to claim 1, characterized in that: The support head (2) is fixedly connected to the support base (1) by bolts, and the cylinder (6) is connected to the outside of the support head (2).

7. The straightening device for the five-link rear axle housing according to claim 1, characterized in that: The connecting rod (4) is provided with a threaded hole. The connecting rod (4) and the V-shaped support (3) are fixedly connected by bolts. The cylinder (6) is connected to the outside of the connecting rod (4).

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