Novel automobile rear axle housing bridge package welding positioning mechanism

Abstract

The utility model provides a novel automobile rear axle housing bridge package welding positioning mechanism relates to automobile parts welding technical field, including guide bush and inflation air cylinder, the output of inflation air cylinder is connected with inflation air cylinder joint, the top of inflation air cylinder joint is installed with double taper wedge, both sides of double taper wedge all are provided with inflation guide shaft, install inflation block on inflation guide shaft, the side of inflation block is provided with inflation guide bush, the side of inflation guide bush is provided with wave spring, the utility model discloses through using double taper wedge, taper angle is from locking angle, cylinder is used as extrusion power source, loosens and returns to position and utilizes the elastic force of wave spring, and the structure is simple, and the cost is low, and the bearing capacity is big, can bear 10 tons of force maximum, after the inflation positioning of rear axle package, ensure that the position precision of weld is in the range of 0.5mm.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts welding technology, and in particular to a novel automotive rear axle housing welding positioning mechanism. Background Technology

[0002] In today's booming automotive industry, vehicle safety and stability have become key concerns for consumers. As a crucial component of the automotive transmission system, the welding quality of the rear axle housing directly impacts overall vehicle performance. Currently, commonly available automotive rear axle housing welding positioning mechanisms have numerous drawbacks.

[0003] Existing welding positioning mechanisms typically use positioning discs to position the inner hole of the rear axle housing. However, due to the + / -1 mm tolerance of the flange hole in the rear axle housing, precise positioning is not possible, which can easily lead to deviations in the weld position, thereby weakening the strength of the welded joint and reducing the overall reliability of the product. Utility Model Content

[0004] The purpose of this utility model is to solve the problem that in the existing technology, the welding positioning mechanism usually uses a positioning plate to position the inner hole of the rear axle housing. However, due to the tolerance of + / -1 mm in the flange hole of the rear axle housing, it is impossible to position accurately, which can easily lead to deviation of the weld position, thereby weakening the strength of the welded joint and reducing the overall reliability of the product. Therefore, a new type of automotive rear axle housing welding positioning mechanism is proposed.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a novel automotive rear axle housing welding positioning mechanism, comprising a guide sleeve and a tensioning cylinder, wherein the output end of the tensioning cylinder is connected to a tensioning cylinder connector, a double-cone wedge is mounted on the top of the tensioning cylinder connector, tensioning guide shafts are provided on both sides of the double-cone wedge, tensioning blocks are mounted on the tensioning guide shafts, tensioning guide sleeves are provided on the sides of the tensioning blocks, and wave springs are provided on the sides of the tensioning guide sleeves.

[0006] Preferably, a lifting cylinder is installed inside the guide sleeve, a guide shaft is connected inside the guide sleeve, the output end of the lifting cylinder is connected to a lifting cylinder connector, and a locking nut is installed on the top of the lifting cylinder connector.

[0007] Preferably, a tension cylinder mounting flange is provided on the side of the tension cylinder connector, and a positioning flange is installed on the top of the tension cylinder mounting flange.

[0008] Preferably, a support pad is installed on the top of the positioning flange, a tensioning seat is provided on the outer side of the double-cone wedge, and a protective cover is installed on the top of the tensioning seat.

[0009] Preferably, a flat key is provided on the outer side of the guide sleeve, and a dustproof ring is provided between the guide sleeve and the guide shaft.

[0010] Preferably, a lifting cylinder mounting plate is installed at the bottom of the guide sleeve.

[0011] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0012] In this invention, a double-cone wedge is used, with the taper angle being a self-locking angle. A cylinder is used as the power source for compression, and the release and return are achieved using the elastic force of a wave spring. The structure is simple, the cost is low, and the load-bearing capacity is large, with a maximum load capacity of 10 tons. After the rear axle is tightened and positioned, the weld position accuracy is ensured to be within ±0.5mm. Attached Figure Description

[0013] Figure 1 A three-dimensional structural diagram of a novel automotive rear axle housing axle bundle welding positioning mechanism is provided for this utility model.

[0014] Figure 2 This utility model provides a first internal cross-sectional view of a novel automotive rear axle housing axle bundle welding positioning mechanism.

[0015] Figure 3 A side view of a novel automotive rear axle housing welding positioning mechanism is provided for this utility model.

[0016] Figure 4 This utility model presents a second internal cross-sectional view of a novel automotive rear axle housing axle bundle welding positioning mechanism.

[0017] Legend: 1. Lifting cylinder; 2. Flat key; 3. Dustproof ring; 4. Lifting cylinder connector; 5. Tensioning cylinder mounting flange; 6. Positioning flange; 7. Tensioning seat; 8. Protective cover; 9. Double cone wedge; 10. Support pad; 11. Tensioning cylinder connector; 12. Tensioning cylinder; 13. Locking nut; 14. Guide shaft; 15. Guide sleeve; 16. Lifting cylinder mounting plate; 17. Wave spring; 18. Tensioning guide sleeve; 19. Tensioning block; 20. Tensioning guide shaft. Detailed Implementation

[0018] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0019] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0020] Example 1: As Figures 1-4 As shown, this utility model provides a technical solution: a novel automotive rear axle housing welding positioning mechanism, comprising a guide sleeve 15 and a tensioning cylinder 12, characterized in that: the output end of the tensioning cylinder 12 is connected to a tensioning cylinder connector 11, a double-cone wedge 9 is installed on the top of the tensioning cylinder connector 11, tensioning guide shafts 20 are provided on both sides of the double-cone wedge 9, tensioning blocks 19 are installed on the tensioning guide shafts 20, tensioning guide sleeves 18 are provided on the sides of the tensioning blocks 19, wave springs 17 are provided on the sides of the tensioning guide sleeves 18, a lifting cylinder 1 is installed inside the guide sleeve 15, and the inside of the guide sleeve 15 is connected to... A guide shaft 14 is connected to the output end of the lifting cylinder 1, which is connected to a lifting cylinder connector 4. A locking nut 13 is installed on the top of the lifting cylinder connector 4. A tensioning cylinder mounting flange 5 is provided on the side of the tensioning cylinder connector 11. A positioning flange 6 is installed on the top of the tensioning cylinder mounting flange 5. A support pad 10 is installed on the top of the positioning flange 6. A tensioning seat 7 is provided on the outside of the double cone wedge 9. A protective cover 8 is installed on the top of the tensioning seat 7. A flat key 2 is provided on the outside of the guide sleeve 15. A dustproof ring 3 is provided between the guide sleeve 15 and the guide shaft 14. A lifting cylinder mounting plate 16 is installed at the bottom of the guide sleeve 15.

[0021] In this embodiment, the rear axle housing is manually moved onto the new type of automotive rear axle housing axle bushing welding and positioning mechanism. The tensioning cylinder 12 extends and works, and the tensioning cylinder connector 11 drives the double cone wedge 9 to move upward. Since the left and right tensioning guide shafts 20 and the tapered surfaces of the double cone wedge 9 are matched and fitted, the left and right tensioning guide shafts 20 move in the left and right directions along the tensioning guide sleeve 18. The tensioning block 19 installed on the tensioning guide shaft 20 tightens the middle axle bushing inner hole of the rear axle housing. Simultaneously, the tensioning guide shaft 20 also compresses the wave spring 17 to produce a certain elastic deformation. After the rear axle housing and axle bundle are welded and positioned, the tensioning cylinder 12 retracts, driving the double cone wedge 9 to move downwards. The elastic force generated by the compression of the wave spring 17 causes the left and right tensioning guide shafts 20 to move towards the center, thereby causing the tensioning block 19 to disengage from the inner hole of the rear axle housing and axle bundle. Then, the lifting cylinder 1 extends and works, driving the guide shaft 14 downwards along the guide sleeve 15 through the lifting cylinder connector 4. In this way, the parts installed on the guide shaft 14 move downwards together, allowing rotation space to be made when the rear axle housing and axle bundle are rotated and welded. After welding is completed, the lifting cylinder 11 works to drive the guide shaft 14 and the parts on it upwards together, thus completing the processing cycle.

[0022] The working principle of this embodiment is as follows: In use, the rear axle housing is first manually moved onto the new type of automobile rear axle housing axle bushing welding and positioning mechanism. The tensioning cylinder 12 extends and works, and the tensioning cylinder connector 11 drives the double cone wedge 9 to move upward. Since the left and right tensioning guide shafts 20 and the tapered surfaces of the double cone wedge 9 are matched and fitted, the left and right tensioning guide shafts 20 move along the tensioning guide sleeve 18 in the left and right directions, and the tensioning block 19 installed on the tensioning guide shaft 20 tightens the middle axle bushing inner hole of the rear axle housing. Simultaneously, the tensioning guide shaft 20 also compresses the wave spring 17 to produce a certain elastic deformation. After the rear axle housing and axle bundle are welded and positioned, the tensioning cylinder 12 retracts, driving the double cone wedge 9 to move downwards. The elastic force generated by the compression of the wave spring 17 causes the left and right tensioning guide shafts 20 to move towards the center, thereby causing the tensioning block 19 to disengage from the inner hole of the rear axle housing and axle bundle. Then, the lifting cylinder 1 extends and works, driving the guide shaft 14 downwards along the guide sleeve 15 through the lifting cylinder connector 4. In this way, the parts installed on the guide shaft 14 move downwards together, allowing rotation space to be made when the rear axle housing and axle bundle are rotated and welded. After welding is completed, the lifting cylinder 11 works to drive the guide shaft 14 and the parts on it upwards together, thus completing the processing cycle.

[0023] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A novel automotive rear axle housing welding positioning mechanism, comprising a guide sleeve (15) and a tensioning cylinder (12), characterized in that: The output end of the tensioning cylinder (12) is connected to a tensioning cylinder connector (11). A double-cone wedge (9) is installed on the top of the tensioning cylinder connector (11). Tensioning guide shafts (20) are provided on both sides of the double-cone wedge (9). Tensioning blocks (19) are installed on the tensioning guide shafts (20). Tensioning sleeves (18) are provided on the side of the tensioning blocks (19). Wave springs (17) are provided on the side of the tensioning sleeves (18).

2. The novel automotive rear axle housing axle bundle welding positioning mechanism according to claim 1, characterized in that: The guide sleeve (15) is equipped with a lifting cylinder (1), and the guide sleeve (15) is connected to a guide shaft (14). The output end of the lifting cylinder (1) is connected to a lifting cylinder connector (4), and a locking nut (13) is installed on the top of the lifting cylinder connector (4).

3. The novel automotive rear axle housing axle bundle welding positioning mechanism according to claim 1, characterized in that: The side of the tension cylinder connector (11) is provided with a tension cylinder mounting flange (5), and the top of the tension cylinder mounting flange (5) is provided with a positioning flange (6).

4. The novel automotive rear axle housing axle bundle welding positioning mechanism according to claim 3, characterized in that: The top of the positioning flange (6) is equipped with a support pad (10), the outside of the double cone wedge (9) is provided with a tensioning seat (7), and the top of the tensioning seat (7) is equipped with a protective cover (8).

5. The novel automotive rear axle housing axle bundle welding positioning mechanism according to claim 1, characterized in that: A flat key (2) is provided on the outer side of the guide sleeve (15), and a dustproof ring (3) is provided between the guide sleeve (15) and the guide shaft (14).

6. The novel automotive rear axle housing axle bundle welding positioning mechanism according to claim 5, characterized in that: The bottom of the guide sleeve (15) is fitted with a lifting cylinder mounting plate (16).

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