Extrusion device for machining high-hardness automobile half axle spline

Abstract

The utility model discloses a high-hardness extrusion device for processing an automobile half axle spline, which comprises a base, an extrusion module and a pressed module, the upper end of the pressed module is provided with a pressed groove, the extrusion module is arranged right opposite to the pressed groove, the pressed module is fixedly mounted at the upper end of the base, and a fixed seat is fixedly mounted at the upper end of the rear side of the base. A second hydraulic cylinder is matched with a connecting block to drive a jacking column to vertically ascend along a circular through groove, so that the jacking column is matched with a circular sealing block to eject out a formed spline in a pressed groove, the formed spline in the pressed groove can be conveniently and rapidly taken out, an inserting block on an extrusion module is inserted between two rectangular protrusions on a T-shaped limiting block, and the formed spline can be conveniently and rapidly taken out. And the first hydraulic cylinder drives the extrusion module to be matched with the T-shaped limiting groove and the T-shaped limiting block to vertically ascend and descend, so that the stability of the extrusion module is improved, deviation in the extrusion process is prevented, and the extrusion forming quality is ensured.

Description

Technical Field

[0001] This utility model relates to the field of automotive half-shaft spline machining technology, and in particular to an extrusion device for machining high-hardness automotive half-shaft splines. Background Technology

[0002] The half-shaft of a car is connected to the wheel using a spline. There is a universal joint at each end of the half-shaft, and a spline is connected to both ends of the universal joint. One end of the spline is connected to the wheel axle, and the other end of the spline is connected to the output end of the gearbox. The two half-shafts drive the two wheels respectively. Therefore, under the action of the universal joints and splines, the wheels can rotate without affecting the power transmission of the half-shaft.

[0003] Extrusion molding is often required in spline machining. However, existing extrusion devices for spline machining have drawbacks in practical use. The formed splines on the pressure module are not easy to remove quickly, and the extrusion module lacks a limiting structure, which can easily cause displacement during extrusion and affect the extrusion quality. To address these issues, an extrusion device for machining high-hardness automotive half-shaft splines is proposed. Utility Model Content

[0004] To address the shortcomings and defects in existing technologies, this utility model proposes an extrusion device for processing high-hardness automotive half-shaft splines. This device solves the technical problems in existing spline processing extrusion devices in the background art, such as the inconvenience of quickly removing the formed splines on the pressure module during actual use, and the lack of a limiting structure in the extrusion module, which easily leads to displacement during the extrusion process and affects the extrusion molding quality.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] An extrusion device for machining splines on high-hardness automotive half-shafts includes a base, an extrusion module, and a pressure receiving module. The upper end of the pressure receiving module is provided with a pressure receiving groove, and the extrusion module is positioned directly opposite the pressure receiving groove. The pressure receiving module is fixedly installed on the upper end of the base. A fixed seat is fixedly installed on the upper rear side of the base. A first hydraulic cylinder is fixedly installed on the front side wall of the fixed seat near the upper end. The piston rod of the first hydraulic cylinder is fixedly connected to the extrusion module. A support seat is fixedly connected to the inner side wall of the base. A lifting mechanism is provided at the upper end of the center position of the support seat. The lifting mechanism is provided through the bottom of the center position of the pressure receiving groove. A limiting mechanism is provided on the front side wall of the fixed seat near the left and right sides. The limiting mechanism is engaged and positioned with the extrusion module.

[0007] Preferably, the lifting mechanism includes a second hydraulic cylinder fixedly installed at the upper end of the center position of the support base. The piston rod of the second hydraulic cylinder is vertically upward. A connecting block is fixedly connected to the upper end of the piston rod of the second hydraulic cylinder. A lifting column is fixedly connected to the upper end of the connecting block. A circular through groove is provided at the bottom of the center position of the pressure groove. The lifting column is vertically movable through the circular through groove. A circular sealing block is fixedly connected to one end of the lifting column located in the circular through groove. The upper end of the circular sealing block is on the same horizontal plane as the bottom of the pressure groove.

[0008] Preferably, a U-shaped limiting block is fixedly connected to the lower end of the horizontal section of the base, the piston rod of the second hydraulic cylinder is vertically movable through the horizontal section of the U-shaped limiting block, and an annular washer is fixedly connected to the lower end of the connecting block.

[0009] Preferably, the circular sealing block is a high-density alloy product, and the connecting block and the annular gasket are both wear-resistant rubber products.

[0010] Preferably, the limiting mechanism includes two T-shaped limiting grooves disposed on the front side wall of the fixed base. The two T-shaped limiting grooves are respectively disposed near the left and right sides of the fixed base. Two T-shaped limiting blocks are slidably connected in each of the two T-shaped limiting grooves. Insert blocks are fixedly connected to the left and right side walls of the extrusion module near the lower end. Two rectangular protrusions are provided on the side walls of the two T-shaped limiting blocks away from the T-shaped limiting grooves. The two insert blocks are respectively inserted between the two rectangular protrusions on the same side. Grooves are provided on the opposite side walls of the two rectangular protrusions on the same side. Springs are fixedly connected to the opposite inner walls of the two grooves. Arc-shaped positioning blocks are fixedly connected to the two springs. Arc-shaped slots are provided at the upper and lower ends of the two insert blocks. The two arc-shaped positioning blocks are respectively inserted into the two arc-shaped slots on the same side.

[0011] Preferably, the rectangular protrusion and the T-shaped limiting block are integrally formed.

[0012] Compared with the prior art, the advantages of this utility model are as follows:

[0013] 1. The second hydraulic cylinder, in conjunction with the connecting block, drives the lifting column to rise vertically along the circular through groove, so that the lifting column, in conjunction with the circular sealing block, pushes out the formed spline in the pressure groove, making it easy to quickly remove the formed spline from the pressure groove.

[0014] 2. By inserting the insert block on the extrusion module between the two rectangular protrusions on the T-shaped limiting block, the spring in the groove drives the arc-shaped positioning block to be inserted into the arc-shaped groove. The first hydraulic cylinder drives the extrusion module to move vertically in conjunction with the T-shaped limiting groove and the T-shaped limiting block, thereby improving the stability of the extrusion module, preventing deviation during the extrusion process, and ensuring the quality of extrusion molding. Attached Figure Description

[0015] Figure 1 This is a perspective view of an extrusion device for machining high-hardness automotive half-shaft splines according to the present invention.

[0016] Figure 2 for Figure 1 A magnified view of a section at point B in the middle;

[0017] Figure 3 This is a schematic diagram of the structure of the T-shaped limiting block, rectangular protrusion, and arc-shaped positioning block of the extrusion device for processing high-hardness automotive half-shaft splines proposed in this utility model.

[0018] Figure 4 for Figure 1 A magnified view of a section at point A in the middle;

[0019] Figure 5 This is a schematic diagram of the lifting mechanism of an extrusion device for machining splines on high-hardness automotive half-shafts, as proposed in this utility model.

[0020] In the diagram: 1. Base, 2. Extrusion module, 3. Pressure-bearing module, 4. Pressure-bearing groove, 5. Fixed seat, 6. First hydraulic cylinder, 7. Support seat, 8. Second hydraulic cylinder, 9. Connecting block, 10. Lifting column, 11. Circular through groove, 12. Circular sealing block, 13. U-shaped limiting block, 14. Annular washer, 15. T-shaped limiting groove, 16. T-shaped limiting block, 17. Insert block, 18. Rectangular protrusion, 19. Groove, 20. Spring, 21. Arc-shaped positioning block, 22. Arc-shaped groove. Detailed Implementation

[0021] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] Reference Figure 1-5An extrusion device for machining splines on high-hardness automotive half-shafts includes a base 1, an extrusion module 2, and a pressure receiving module 3. The upper end of the pressure receiving module 3 has a pressure receiving groove 4, and the extrusion module 2 is positioned directly opposite the pressure receiving groove 4. The pressure receiving module 3 is fixedly installed on the upper end of the base 1. A fixing seat 5 is fixedly installed on the upper rear side of the base 1. A first hydraulic cylinder 6 is fixedly installed on the front side wall of the fixing seat 5 near its upper end. The piston rod of the first hydraulic cylinder 6 is fixedly connected to the extrusion module 2, and the first hydraulic cylinder 6 drives the extrusion module 2 to rise vertically. A support base 7 is fixedly connected to the inner wall of the base 1. A lifting mechanism is provided at the upper end of the center position of the support base 7. The lifting mechanism is set through the bottom of the center position of the pressure groove 4. The lifting mechanism includes a second hydraulic cylinder 8 fixedly installed at the upper end of the center position of the support base 7. The piston rod of the second hydraulic cylinder 8 is set vertically upward. A connecting block 9 is fixedly connected to the upper end of the piston rod of the second hydraulic cylinder 8. A lifting column 10 is fixedly connected to the upper end of the connecting block 9. A circular through groove 11 is provided at the bottom of the center position of the pressure groove 4. The lifting column 10 is vertically and movably installed through the circular through groove 11. A circular sealing block 12 is fixedly connected to one end of the lifting column 10 within the circular through groove 11. The upper end of the circular sealing block 12 is on the same horizontal plane as the bottom of the pressure groove 4. The second hydraulic cylinder 8 drives the mating connecting block 9 to drive the lifting column 10 vertically upward along the circular through groove 11, so that the lifting column 10, in conjunction with the circular sealing block 12, pushes out the formed spline in the pressure groove 4, facilitating the quick removal of the formed spline from the pressure groove 4. The horizontal section of the machine base 1... A U-shaped limiting block 13 is fixedly connected to the lower end. The piston rod of the second hydraulic cylinder 8 is vertically movable through the horizontal section of the U-shaped limiting block 13. The U-shaped limiting block 13, together with the annular washer 14, restricts the movement range of the circular sealing block 12 in the pressure groove 4, so that the lowest position of the circular sealing block 12 is on the same horizontal plane as the bottom of the pressure groove 4. The lower end of the connecting block 9 is fixedly connected to the annular washer 14. The circular sealing block 12 is a high-density alloy product, and the connecting block 9 and the annular washer 14 are both wear-resistant rubber products.

[0024] A limiting mechanism is provided on the front sidewall of the fixed base 5 near the left and right sides. The limiting mechanism is engaged and positioned with the extrusion module 2. The limiting mechanism includes two T-shaped limiting grooves 15 set on the front sidewall of the fixed base 5. The two T-shaped limiting grooves 15 are respectively set near the left and right sides of the fixed base 5. Two T-shaped limiting blocks 16 are slidably connected in each of the two T-shaped limiting grooves 15. Insert blocks 17 are fixedly connected to the left and right sidewalls of the extrusion module 2 near the lower end. Two rectangular protrusions 18 are provided on the sidewalls of the two T-shaped limiting blocks 16 away from the T-shaped limiting grooves 15. The two insert blocks 17 are respectively inserted between the two rectangular protrusions 18 on the same side. The opposite sidewalls of the two rectangular protrusions 18 on the same side are provided with grooves 19. Springs 20 are fixedly connected to the opposite inner walls of the two grooves 19. Arc-shaped positioning blocks 21 are fixedly connected to the two springs 20. Both ends of the 17 are provided with arc-shaped grooves 22. Two arc-shaped positioning blocks 21 are respectively inserted into the two arc-shaped grooves 22 on the same side. The rectangular protrusions 18 and the T-shaped limiting blocks 16 are integrally formed. The inserts 17 at the left and right ends of the extrusion module 2 are respectively inserted between the two rectangular protrusions 18 on the two T-shaped limiting blocks 16. At this time, the inserts 17 and the two arc-shaped positioning blocks 21 abut against each other and compress the springs 20 in the grooves 19 until the inserts 17 are completely inserted between the two rectangular protrusions 18. The compressed springs 20 elastically reset and drive the two arc-shaped positioning blocks 21 to be inserted into the arc-shaped grooves 22 on both sides of the inserts 17. This allows the first hydraulic cylinder 6 to drive the extrusion module 2 to move vertically up and down in coordination with the T-shaped limiting grooves 15 and the T-shaped limiting blocks 16, thereby improving the stability of the extrusion module 2, preventing displacement during the extrusion process, and ensuring the quality of the extrusion molding.

[0025] In use, the inserts 17 at both ends of the extrusion module 2 are respectively inserted between the two rectangular protrusions 18 on the two T-shaped limiting blocks 16. At this time, the inserts 17 abut against the two arc-shaped positioning blocks 21 and compress the springs 20 in the grooves 19 until the inserts 17 are fully inserted between the two rectangular protrusions 18. The compressed springs 20 elastically return to their original position, causing the two arc-shaped positioning blocks 21 to be inserted into the arc-shaped grooves 22 on both sides of the inserts 17, thus fixing the lower end of the piston rod of the first hydraulic cylinder 6. At the upper end of the extrusion module 2, the first hydraulic cylinder 6 is activated to drive the extrusion module 2 to move vertically up and down in conjunction with the T-shaped limiting groove 15 and the T-shaped limiting block 16, thereby improving the stability of the extrusion module 2, preventing deviation during the extrusion process, and ensuring the quality of extrusion molding. The second hydraulic cylinder 8 is activated to drive the connecting block 9 to drive the lifting column 10 to rise vertically along the circular through groove 11, so that the lifting column 10, together with the circular sealing block 12, pushes out the forming spline in the pressure groove 4, making it easy to quickly remove the forming spline in the pressure groove 4.

[0026] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An extrusion device for machining splines on high-hardness automotive half-shafts, comprising a base (1), an extrusion module (2), and a pressure receiving module (3), wherein the upper end of the pressure receiving module (3) is provided with a pressure receiving groove (4), the extrusion module (2) is positioned directly opposite the pressure receiving groove (4), and the pressure receiving module (3) is fixedly installed on the upper end of the base (1), characterized in that, A fixed base (5) is fixedly installed on the upper rear side of the base (1). A first hydraulic cylinder (6) is fixedly installed on the front side wall of the fixed base (5) near the upper end. The piston rod of the first hydraulic cylinder (6) is fixedly connected to the extrusion module (2). A support base (7) is fixedly connected to the inner side wall of the base (1). A lifting mechanism is provided at the upper end of the center position of the support base (7). The lifting mechanism is set through the bottom of the center position of the pressure groove (4). A limiting mechanism is provided on the front side wall of the fixed base (5) near the left and right sides. The limiting mechanism is engaged and positioned with the extrusion module (2). The lifting mechanism includes a second hydraulic cylinder (8) fixedly installed at the upper end of the center position of the support base (7). The piston rod of the second hydraulic cylinder (8) is set vertically upward. A connecting block (9) is fixedly connected to the upper end of the piston rod of the second hydraulic cylinder (8). A lifting column (10) is fixedly connected to the upper end of the connecting block (9). A circular through groove (11) is provided at the bottom of the center position of the pressure groove (4). The lifting column (10) is set vertically and movably through the circular through groove (11). A circular sealing block (12) is fixedly connected to one end of the lifting column (10) located in the circular through groove (11). The upper end of the circular sealing block (12) is on the same horizontal plane as the bottom of the pressure groove (4). A U-shaped limit block (13) is fixedly connected to the lower end of the horizontal section of the base (1). The piston rod of the second hydraulic cylinder (8) is vertically... The horizontal section of the U-shaped limiting block (13) is set through the straight movement. The lower end of the connecting block (9) is fixedly connected to an annular washer (14). The circular sealing block (12) is a high-density alloy product. The connecting block (9) and the annular washer (14) are both wear-resistant rubber products. The limiting mechanism includes two T-shaped limiting grooves (15) set on the front side wall of the fixed seat (5). The two T-shaped limiting grooves (15) are respectively set near the left and right sides of the fixed seat (5). Two T-shaped limiting blocks (16) are slidably connected in each of the two T-shaped limiting grooves (15). Insert blocks (17) are fixedly connected on the left and right side walls near the lower end of the extrusion module (2). The two T-shaped limiting blocks (16) Two rectangular protrusions (18) are provided on the side wall away from the T-shaped limiting groove (15). The two inserts (17) are respectively inserted between the two rectangular protrusions (18) on the same side. The opposite side walls of the two rectangular protrusions (18) on the same side are provided with grooves (19). Springs (20) are fixedly connected to the opposite inner walls of the two grooves (19). Arc-shaped positioning blocks (21) are fixedly connected to the two springs (20). Arc-shaped grooves (22) are provided at the upper and lower ends of the two inserts (17). The two arc-shaped positioning blocks (21) are respectively inserted into the two arc-shaped grooves (22) on the same side. The rectangular protrusions (18) and the T-shaped limiting blocks (16) are integrally formed.

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