Driving shaft bearing press fitting deviation preventing device

Abstract

The utility model relates to the technical field of automobiles, and discloses a drive shaft bearing press-fitting deviation prevention device which comprises a supporting frame, a supporting table is fixedly arranged at the bottom of the supporting frame, a press-fitting hydraulic structure is fixedly arranged at the top of the supporting frame, and the output end of the press-fitting hydraulic structure is connected to the top of a press-fitting contact body. The positioning structure is movably arranged on the supporting table and comprises a positioning frame, a clamping block and a guide pulley; the supporting structure is movably arranged on the supporting table and comprises a supporting box, an electric push rod, inner supporting blocks and shifting pieces, the multiple inner supporting blocks and the shifting pieces are arranged on the supporting box in a circumferential array mode, the shifting pieces are fixedly arranged on the top faces of the inner supporting blocks, the electric push rod is fixedly arranged on the supporting table, and the output end of the electric push rod is connected to the bottom face of the supporting box; the positioning structure adapts to the size of the bearing and clamps the bearing, and the supporting structure supports and fixes the inner ring of the bearing, so that the bearing is centrally located under the press-fitting contact body, and the anti-deviation effect of the device is improved.

Description

Technical Field

[0001] This utility model belongs to the field of automotive technology, specifically, it relates to a drive shaft bearing press-fit anti-deviation device. Background Technology

[0002] In the automobile manufacturing process, the press-fitting of drive shaft bearings is a critical step, and its quality directly affects the vehicle's driving performance and safety.

[0003] The prior art discloses a motor bearing press-fitting device (CN222429885U), including a support platform, guide column, support plate, press-fitting structure, support frame, press-fitting hydraulic structure, and bearing positioning structure. The guide column is fixedly installed on the surface of the support platform, and the support plate is fixedly installed on the top of the guide column. The press-fitting structure is slidably installed on the surface of the guide column. The support frame is fixedly installed on the surface of the support platform, and the press-fitting hydraulic structure is fixedly installed on the top of the support frame and connected to the press-fitting structure. The bearing positioning structure is fixedly installed on the surface of the support platform. The design of the press-fitting structure and bearing positioning structure in this invention solves the problems of inaccurate positioning, uneven pressure distribution, and relatively low production efficiency that still exist in existing bearing press-fitting structures.

[0004] The search revealed that the device cannot automatically adjust according to the bearing size and relies on manual adjustment, which increases the labor intensity of workers and the adjustment accuracy is greatly affected by human factors. Due to the complexity of the structure and the limitations of manual adjustment, the anti-deviation effect of the device is limited in practical applications and it is difficult to meet the requirements of high-precision centering press fitting.

[0005] In view of this, this utility model is proposed. Utility Model Content

[0006] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by this utility model is as follows:

[0007] A drive shaft bearing press-fit anti-deviation device, comprising:

[0008] A support frame, wherein a support platform is fixedly installed at the bottom of the support frame, and a press-fit hydraulic structure is fixedly installed at the top of the support frame, and the output end of the press-fit hydraulic structure is connected to the top of the press-fit contact body;

[0009] A positioning structure is movably mounted on a support platform. The positioning structure includes a positioning frame, a clamping block, and guide pulleys. The clamping block is fixedly mounted on one side of the positioning frame. Multiple guide pulleys are arrayed inside the positioning frame and rotatably mounted inside the positioning frame. The clamping block is movably mounted on the top surface of the support platform.

[0010] A support structure is movably mounted on a support platform. The support structure includes a support box, an electric actuator, an inner support block, and a lever. Multiple inner support blocks and levers are arranged in a circumferential array on the support box. The levers are fixedly mounted on the top surface of the inner support blocks. The electric actuator is fixedly mounted on the support platform. The output end of the electric actuator is connected to the bottom surface of the support box. The inner support blocks are movably mounted inside the support box.

[0011] In a preferred embodiment of the present invention, a support base is fixedly provided on the top surface of the support platform. The support base consists of a square plate and a cylinder. An electric actuator is fixedly provided inside the cylinder. A support structure is movably provided inside the square plate. The positioning structure is movably provided on the top surface of the square plate.

[0012] In a preferred embodiment of this utility model, a nail-shaped storage groove is provided in the support base, the square plate communicates with the cylinder through the storage groove, and the support box is disposed in the storage groove.

[0013] In a preferred embodiment of this utility model, the support box has multiple sliding grooves arranged in a circular array inside. The inner support block is a T-shaped block that slides within the sliding groove. A square spring is fixedly arranged between the sliding groove and the inner support block, and the sliding groove is elastically connected to the inner support block through the square spring.

[0014] In a preferred embodiment of this utility model, four mounting seats are fixedly arranged in an array on the top surface of the support platform, and a guide rod is fixedly arranged between each pair of mounting seats. The clamping block slides on the guide rod, and the positioning frame slides on the top surface of the square plate.

[0015] In a preferred embodiment of this utility model, two positioning frames are symmetrically arranged, and four clamping blocks are arranged. Two clamping blocks are symmetrically fixed on each positioning frame, and a compression spring is fixed between every two clamping blocks. The two clamping blocks are elastically connected by the compression spring, and the compression spring is sleeved on the guide rod.

[0016] In a preferred embodiment of this utility model, the four clamping blocks correspond to four mounting seats respectively. A mold spring is fixedly provided between the clamping blocks and the mounting seats. The mounting seats are elastically connected to the clamping blocks through the mold springs. The mold springs are sleeved on the guide rods.

[0017] Compared with the prior art, the present invention has the following advantages:

[0018] 1. By setting up a positioning structure, the bearing size is adaptively adjusted by using the compression springs between the clamping blocks and the mold springs between the clamping blocks and the mounting base. This drives the positioning frame and guide pulley to slide and clamp the bearing, avoiding manual adjustment, thereby reducing the labor intensity of workers and avoiding accuracy errors caused by human factors.

[0019] 2. By setting up a support structure, which works in conjunction with a positioning structure, the positioning structure adapts to the bearing size and clamps it, while the support structure supports and fixes the inner ring of the bearing, so that the bearing is centered directly below the press-fit contact body. This improves the anti-displacement effect of the device and meets the device's requirements for high-precision centering press-fitting.

[0020] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0021] In the attached diagram:

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0023] Figure 2 This is a schematic diagram of the overall positioning structure of this utility model;

[0024] Figure 3 This is a schematic diagram showing the connection between the support platform and the support base of this utility model;

[0025] Figure 4 This is a front view schematic diagram of the positioning structure of this utility model;

[0026] Figure 5 This is a partial disassembly diagram of the support structure of this utility model.

[0027] In the diagram: 10. Support frame; 11. Press-fit hydraulic structure; 12. Support platform; 13. Press-fit contact body; 14. Positioning frame; 15. Support box; 16. Support base; 17. Mounting seat; 18. Storage slot; 19. Guide rod; 20. Clamping block; 21. Mold spring; 22. Compression spring; 23. Guide pulley; 24. Electric actuator; 25. Slide groove; 26. Inner support block; 27. Paddle; 28. Square spring. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model.

[0029] A drive shaft bearing press-fit anti-deviation device, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, including

[0030] The support frame 10 has a support platform 12 fixedly installed at its bottom and a press-fit hydraulic structure 11 fixedly installed at its top. The output end of the press-fit hydraulic structure 11 is connected to the top of the press-fit contact body 13.

[0031] The positioning structure is movably mounted on the support platform 12. The positioning structure includes a positioning frame 14, a clamping block 20, and guide pulleys 23. The clamping block 20 is fixedly mounted on one side of the positioning frame 14. Multiple guide pulleys 23 are arranged in an array inside the positioning frame 14. The guide pulleys 23 are rotatably mounted inside the positioning frame 14. The clamping block 20 is movably mounted on the top surface of the support platform 12.

[0032] The support structure is movably mounted on the support platform 12. The support structure includes a support box 15, an electric actuator 24, an inner support block 26, and a lever 27. Multiple inner support blocks 26 and levers 27 are arranged in a circular array on the support box 15. The levers 27 are fixedly mounted on the top surface of the inner support blocks 26. The electric actuator 24 is fixedly mounted on the support platform 12. The output end of the electric actuator 24 is connected to the bottom surface of the support box 15. The inner support blocks 26 are movably mounted inside the support box 15.

[0033] Specifically, the support structure is located directly below the press-fit contact body 13. The support box 15 is concentrically set with the press-fit contact body 13. During use, the positioning structure adapts to the bearing size. The guide pulley 23 on the positioning frame 14 slides and clamps the bearing. The support structure adapts to the size of the bearing inner ring through the lever 27. When the support box 15 rises, the inner support block 26 supports the bearing inner ring. The press-fit hydraulic structure 11 is activated, causing the sliding plate to move vertically downward along the surface of the guide post until it contacts the bearing. At this time, the press-fit hydraulic structure 11 applies appropriate pressure to ensure that the bearing is subjected to uniform force and to prevent damage or deformation. The rigid cylindrical rubber structure press-fit contact body 13 ensures good bearing surface fit.

[0034] It is worth noting that the press-fit hydraulic structure 11 and press-fit contact body 13 used in this device are used to press-fit the bearing, and the support frame 10 is used to support the internal structure of the device. The support frame 10, press-fit hydraulic structure 11, press-fit contact body 13, sliding plate and guide column are all disclosed in detail in the prior art of a motor bearing press-fit device (CN222429885U), and will not be described in detail here.

[0035] like Figure 2 and Figure 3As shown, a support base 16 is fixedly installed on the top surface of the support platform 12. The support base 16 consists of a square plate and a cylinder. An electric actuator 24 is fixedly installed inside the cylinder. A support structure is movably installed inside the square plate. A positioning structure is movably installed on the top surface of the square plate.

[0036] like Figure 2 , Figure 3 and Figure 5 As shown, a nail-shaped storage groove 18 is provided in the support base 16, and the square plate communicates with the cylinder through the storage groove 18. The support box 15 is set in the storage groove 18.

[0037] like Figure 5 As shown, the support box 15 has multiple sliding grooves 25 arranged in a circular array inside. The inner support block 26 is a T-shaped block. The inner support block 26 slides in the sliding groove 25. A square spring 28 is fixedly arranged between the sliding groove 25 and the inner support block 26. The sliding groove 25 is elastically connected to the inner support block 26 through the square spring 28.

[0038] Specifically, the electric actuator 24 is connected to an external control terminal, which controls the extension distance and start / stop of the electric actuator 24. During use, the positioning structure adapts to the bearing size and clamps it. The electric actuator 24 pushes the support box 15 to move up and down in the storage groove 18. When the bearing is above the storage groove 18, the support box 15 pushes the lever 27 to extend into the inner ring of the bearing during the upward process. The inner ring of the bearing squeezes the lever 27, and the lever 27 adjusts the corresponding inner support block 26 to squeeze and slide in the slide groove 25. At this time, all the inner support blocks 26 adapt to the inner ring of the bearing under the action of their respective levers 27. Under the elastic deformation of the square spring 26, the inner support block 26 supports the inner ring of the bearing, so that the bearing is located directly below the press-fit contact body 13, thereby improving the anti-displacement effect of the device and meeting the device's requirements for high-precision centering press-fit.

[0039] like Figure 2 , Figure 3 and Figure 4 As shown, four mounting seats 17 are fixedly arranged on the top surface of the support platform 12. A guide rod 19 is fixedly arranged between each pair of mounting seats 17. The clamping block 20 slides on the guide rod 19, and the positioning frame 14 slides on the top surface of the square plate.

[0040] like Figure 3 and Figure 4 As shown, there are two symmetrically arranged positioning frames 14 and four clamping blocks 20. Two clamping blocks 20 are symmetrically fixed on each positioning frame 14, and a compression spring 22 is fixed between each pair of clamping blocks 20. The two clamping blocks 20 are elastically connected by the compression spring 22, which is sleeved on the guide rod 19.

[0041] like Figure 4As shown, the four clamping blocks 20 correspond to the four mounting seats 17 respectively. A mold spring 21 is fixedly installed between the clamping blocks 20 and the mounting seats 17. The mounting seats 17 are elastically connected to the clamping blocks 20 through the mold spring 21. The mold spring 21 is sleeved on the guide rod 19.

[0042] Specifically, when using the device, the bearing is placed on the square plate of the support base 16. The bearing size will automatically press the guide pulleys 23 on both sides, thereby pressing the corresponding clamping block 20 with the help of the guide pulleys 23 and the positioning frame 14. The clamping blocks 20 on both sides will slide on the guide rod 19 to adapt to the bearing size, pressing the corresponding mold spring 21 and stretching the corresponding compression spring 22. After clamping, the bearing is manually pushed to load the material. Under the sliding of the guide pulleys 23 on both sides, the bearing reaches the position of the receiving groove 18. At this time, the electric push rod 24 is activated, and the electric push rod 24 pushes the support box 15 to rise. At the same time as the support box 15 rises, the paddle 27 is pressed by the inner ring of the bearing. At this time, the paddle 17 drives the corresponding inner support block 26 to slide in the slide groove 25. When the inner support block 26 enters the inner ring of the bearing and elastically rebounds, the electric push rod 24 is stopped. At this time, under the action of the square spring 28, the inner support block 26 supports and fixes the bearing. At this time, the bearing is located directly below the press contact body 13.

[0043] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this utility model.

Claims

1. A drive shaft bearing press-in anti-eccentricity device, characterized in that, include A support frame (10) is provided with a support platform (12) fixedly installed at the bottom of the support frame (10) and a press-fit hydraulic structure (11) fixedly installed at the top of the support frame (10). The output end of the press-fit hydraulic structure (11) is connected to the top of the press-fit contact body (13). The positioning structure is movably mounted on the support platform (12). The positioning structure includes a positioning frame (14), a clamping block (20), and guide pulleys (23). The clamping block (20) is fixedly mounted on one side of the positioning frame (14). Multiple guide pulleys (23) are arranged in an array inside the positioning frame (14). The guide pulleys (23) are rotatably mounted inside the positioning frame (14). The clamping block (20) is movably mounted on the top surface of the support platform (12). The support structure is movably mounted on the support platform (12). The support structure includes a support box (15), an electric actuator (24), an inner support block (26), and a lever (27). The support box (15) is arranged in a circumferential array with multiple inner support blocks (26) and levers (27). The levers (27) are fixedly mounted on the top surface of the inner support blocks (26). The electric actuator (24) is fixedly mounted on the support platform (12). The output end of the electric actuator (24) is connected to the bottom surface of the support box (15). The inner support blocks (26) are movably mounted inside the support box (15).

2. A drive shaft bearing press-in anti-extrusion device according to claim 1, characterized in that A support base (16) is fixedly installed on the top surface of the support platform (12). The support base (16) consists of a square plate and a cylinder. An electric actuator (24) is fixedly installed inside the cylinder. A support structure is movably installed inside the square plate. The positioning structure is movably installed on the top surface of the square plate.

3. The drive shaft bearing press-fit anti-deviation device according to claim 2, characterized in that, The support base (16) has a nail-shaped storage groove (18) inside, the square plate is connected to the cylinder through the storage groove (18), and the support box (15) is set in the storage groove (18).

4. A drive shaft bearing press-in anti-axial movement device according to claim 3, characterized in that The support box (15) has multiple sliding grooves (25) arranged in a circular array inside. The inner support block (26) is a T-shaped block. The inner support block (26) slides in the sliding groove (25). A square spring (28) is fixedly arranged between the sliding groove (25) and the inner support block (26). The sliding groove (25) is elastically connected to the inner support block (26) through the square spring (28).

5. The drive shaft bearing press-off device of claim 3, wherein, Four mounting seats (17) are fixedly arranged on the top surface of the support platform (12). A guide rod (19) is fixedly arranged between each pair of mounting seats (17). The clamping block (20) slides on the guide rod (19), and the positioning frame (14) slides on the top surface of the square plate.

6. A drive shaft bearing press-in anti-axial device according to claim 5, characterized in that Two positioning frames (14) are symmetrically arranged, and four clamping blocks (20) are arranged. Two clamping blocks (20) are symmetrically fixed on each positioning frame (14), and a compression spring (22) is fixed between each pair of clamping blocks (20). The two clamping blocks (20) are elastically connected by the compression spring (22), and the compression spring (22) is sleeved on the guide rod (19).

7. The drive shaft bearing press-fit anti-deviation device according to claim 6, characterized in that, The four clamping blocks (20) correspond to the four mounting seats (17) respectively. A mold spring (21) is fixedly provided between the clamping block (20) and the mounting seat (17). The mounting seat (17) is elastically connected to the clamping block (20) through the mold spring (21). The mold spring (21) is sleeved on the guide rod (19).

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