Surface polishing device for automobile transmission shaft production

Abstract

The utility model discloses a surface polishing device for automobile transmission shaft production, which comprises a workbench, a polishing assembly and a mounting unit are arranged on the workbench, the mounting unit comprises a movable tool and a fixed tool, the movable tool is used for clamping a transmission shaft to be polished, the fixed tool is used for clamping a standard transmission shaft, and the polishing assembly is used for polishing the transmission shaft to be polished. The surface polishing device comprises a movable tool and a fixed tool, the movable tool and the fixed tool each comprise two symmetrically-arranged lifting discs and two symmetrically-arranged guide rods, the lifting discs are arranged on the guide rods in a sliding and sleeving mode, and the sides, close to each other, of every two adjacent lifting discs are rotationally connected with chucks used for clamping transmission shafts. The standard transmission shaft is clamped through the fixed tool, the transmission shaft to be polished is clamped through the movable tool, axial synchronization of the grinding wheel and the standard transmission shaft is guaranteed through the contact wheel and the synchronous rod, the polishing process of the transmission shaft to be polished can be conducted according to the shape of the standard transmission shaft, and the polishing precision is greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of automotive drive shaft production technology, specifically a surface polishing device for automotive drive shaft production. Background Technology

[0002] In a car's power transmission system, the driveshaft plays a crucial role, responsible for transmitting the power generated by the engine to the various drive wheels, thus ensuring the car's normal operation. Therefore, the quality and performance of the driveshaft directly affect the overall operating condition and safety of the vehicle.

[0003] In the manufacturing process of automotive driveshafts, surface polishing is an indispensable and crucial step. Polishing not only significantly improves the surface finish of the driveshaft, reducing frictional resistance with other components during operation, thereby reducing energy loss and improving power transmission efficiency, but also effectively enhances the driveshaft's corrosion resistance and extends its service life.

[0004] Most existing surface polishing equipment is designed for the processing needs of traditional constant-diameter drive shafts, lacking effective adaptability to variable-diameter drive shafts. When the diameter of the drive shaft changes, these devices often cannot automatically adjust the polishing position and parameters in real time, requiring operators to perform tedious manual adjustments by stopping the machine. This not only wastes a significant amount of time and labor costs but also severely impacts production efficiency. Utility Model Content

[0005] To address the shortcomings mentioned in the background art, the purpose of this utility model is to provide a surface polishing device for automobile drive shaft production. By setting a fixed fixture to clamp a standard drive shaft and a movable fixture to clamp the drive shaft to be polished, and by using a contact wheel and a synchronizing rod to ensure that the polishing wheel is axially synchronized with the standard drive shaft, the polishing process of the drive shaft to be polished can be carried out with reference to the shape of the standard drive shaft, which greatly improves the polishing accuracy.

[0006] The objective of this utility model can be achieved through the following technical solutions:

[0007] A surface polishing apparatus for automotive drive shaft production includes a worktable with polishing components and an installation unit. The installation unit includes a movable fixture and a fixed fixture. The movable fixture is used to clamp the drive shaft to be polished, and the fixed fixture is used to clamp a standard drive shaft. Both the movable and fixed fixtures include two symmetrically arranged lifting plates and guide rods. The lifting plates are slidably sleeved on the guide rods, and a chuck for clamping the drive shaft is rotatably connected to the side of two adjacent lifting plates that are close to each other.

[0008] More preferably, the polishing assembly includes a slide block, a slider is provided at the bottom of the slide block, a groove is provided on the worktable to slide and cooperate with the slider, a polishing motor is fixedly installed on the slide block, and a grinding wheel is installed at the output end of the polishing motor.

[0009] More preferably, protrusions are symmetrically fixedly installed on the worktable, and a screw is rotatably connected between two of the protrusions. The slide is threadedly connected to the screw. A stepper motor is fixedly installed on the worktable, and the output end of the stepper motor is fixedly connected to one end of the screw.

[0010] More preferably, a compression spring is fitted on the outer surface of the guide rod of the movable tooling, and the two ends of the compression spring are respectively connected to the top of the lifting plate and the top of the worktable.

[0011] More preferably, the active work also includes a gantry frame fixedly installed on the top of the lifting plate of the two movable fixtures. The gantry frame is located below the lifting plate of the fixed fixture. A sliding sleeve is slidably connected to the gantry frame. A frame is fixedly connected to the bottom of the sliding sleeve. A bracket is fixedly connected to the top of the sliding sleeve. A contact wheel is fixedly connected to the top of the bracket. The contact wheel abuts against the bottom end of the standard drive shaft.

[0012] More preferably, a synchronizing rod is fixedly connected to the slide block. One end of the synchronizing rod passes through the frame and is slidably connected to the inner wall of the frame. When the contact wheel contacts the standard drive shaft, the working surface of the grinding wheel contacts the drive shaft to be polished. At this time, the working surface of the grinding wheel and the contact wheel are axially synchronized.

[0013] The beneficial effects of this utility model are:

[0014] 1. This utility model sets a fixed fixture to hold the standard drive shaft, a movable fixture to hold the drive shaft to be polished, and uses a contact wheel and a synchronizing rod to ensure that the grinding wheel is axially synchronized with the standard drive shaft, so that the polishing process of the drive shaft to be polished can be carried out with reference to the shape of the standard drive shaft, which greatly improves the polishing accuracy.

[0015] 2. The compression spring of this utility model's movable tooling can automatically adjust the height of the lifting plate according to the change in the diameter of the standard drive shaft, so that the device can adapt to drive shafts of different diameters and improve the versatility of the device. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings.

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the polishing component structure in this utility model;

[0019] Figure 3 This is a schematic diagram of the movable tooling structure in this utility model;

[0020] Figure 4 This is a schematic diagram of the movable tooling part in this utility model.

[0021] In the picture:

[0022] 1. Worktable; 2. Polishing assembly; 3. Mounting unit; 4. Movable fixture; 5. Fixed fixture; 6. Lifting plate; 7. Guide rod; 8. Chuck; 9. Slide; 10. Slider; 11. Slide groove; 12. Polishing motor; 13. Grinding wheel; 14. Protrusion; 15. Screw; 16. Stepper motor; 17. Compression spring; 18. Gantry frame; 19. Sliding sleeve; 20. Frame; 21. Bracket; 22. Contact wheel; 23. Synchronizing rod. Detailed Implementation

[0023] 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 scope of protection of the present utility model.

[0024] In the description of this utility model, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inner", "around" and other terms indicating orientation or positional relationship are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0025] like Figure 1-4 As shown, a surface polishing apparatus for the production of automotive drive shafts includes a worktable 1, on which polishing components 2 and mounting units 3 are disposed.

[0026] Installation unit 3;

[0027] Mounting unit 3 includes a movable fixture 4 and a fixed fixture 5. The movable fixture 4 is used to clamp the drive shaft to be polished, and the fixed fixture 5 is used to clamp a standard drive shaft. Both the movable fixture 4 and the fixed fixture 5 include two symmetrically arranged lifting plates 6 and guide rods 7. The lifting plates 6 are slidably sleeved on the guide rods 7, and chucks 8 for clamping the drive shaft are rotatably connected to the side of two adjacent lifting plates 6 that are close to each other. The function of the chucks 8 is to firmly clamp the drive shaft, ensuring that the drive shaft will not wobble during the polishing process and guaranteeing the stability of the polishing process.

[0028] A compression spring 17 is fitted onto the outer surface of the guide rod 7 of the movable fixture 4. The two ends of the compression spring 17 are respectively connected to the top of the lifting plate 6 and the top of the worktable 1. The function of the compression spring 17 is to provide elastic support for the lifting plate 6, so that the movable fixture 4 can adapt to the drive shafts to be polished of different diameters.

[0029] The movable fixture 4 also includes a gantry frame 18 fixedly installed on the top of the lifting plate 6 of the two movable fixtures 4, with the gantry frame 18 located below the lifting plate 6 of the fixed fixture 5. A sliding sleeve 19 is slidably connected to the gantry frame 18, a frame 20 is fixedly connected to the bottom of the sliding sleeve 19, and a bracket 21 is fixedly connected to the top of the sliding sleeve 19. A contact wheel 22 is fixedly connected to the top of the bracket 21, and the contact wheel 22 abuts against the bottom end of the standard drive shaft. The function of the contact wheel 22 is to provide a reference for polishing the drive shaft to be polished by contacting the standard drive shaft, ensuring the accuracy of the polishing.

[0030] Polishing component 2;

[0031] The polishing assembly 2 includes a slide 9, with a slider 10 at its bottom. A groove 11 is provided on the worktable 1 to slide smoothly with the slider 10. A polishing motor 12 is fixedly mounted on the slide 9, and a grinding wheel 13 is mounted on the output end of the polishing motor 12. The cooperation between the slider 10 and the groove 11 allows the slide 9 to slide smoothly on the worktable 1. The polishing motor 12 drives the grinding wheel 13 to rotate, polishing the drive shaft.

[0032] The worktable 1 has symmetrically fixed protrusions 14, and a screw 15 is rotatably connected between the two protrusions 14. The slide 9 is threadedly connected to the screw 15. A stepper motor 16 is fixedly installed on the worktable 1, and the output end of the stepper motor 16 is fixedly connected to one end of the screw 15. The stepper motor 16 drives the screw 15 to rotate, and the screw 15 drives the slide 9 to move within the slide groove 11, thereby realizing the movement and polishing of the grinding wheel 13 on the surface of the drive shaft.

[0033] A synchronizing rod 23 is fixedly connected to the slide 9. One end of the synchronizing rod 23 passes through the frame 20 and is slidably connected to the inner wall of the frame 20. When the contact wheel 22 contacts the standard drive shaft, the working surface of the grinding wheel 13 contacts the drive shaft to be polished. At this time, the working surface of the grinding wheel 13 and the contact wheel 22 are axially synchronized. The function of the synchronizing rod 23 is to ensure the synchronous movement of the grinding wheel 13 and the contact wheel 22, so that the polishing process of the drive shaft to be polished matches the shape of the standard drive shaft, thereby improving the polishing accuracy.

[0034] Working principle:

[0035] Install the standard drive shaft between the chucks 8 of the fixed fixture 5, tighten the chucks 8, and ensure that the standard drive shaft is securely installed.

[0036] Install the drive shaft to be polished between the chucks 8 of the movable fixture 4, so that the drive shaft to be polished is installed in place.

[0037] Power is switched on, and stepper motor 16 and polishing motor 12 are started. Stepper motor 16 drives screw 15 to rotate, and screw 15 drives slide 9 to move in the groove 11 toward the drive shaft to be polished. At the same time, polishing motor 12 drives polishing wheel 13 to rotate at high speed.

[0038] The contact wheel 22 is in contact with the bottom end of the standard drive shaft. At this time, the synchronizing rod 23 is slidably connected to the inner wall of the frame 20 to ensure that the working surface of the grinding wheel 13 is axially synchronized with the contact wheel 22.

[0039] As the slide 9 continues to move, the polishing wheel 13 polishes the surface of the drive shaft to be polished. Because the contact wheel 22 is in contact with the standard drive shaft, the polishing process of the drive shaft to be polished will be carried out with reference to the shape of the standard drive shaft to ensure polishing accuracy.

[0040] When the slide 9 moves to the designated position, the stepper motor 16 stops rotating and the polishing motor 12 stops working.

[0041] Loosen the chuck 8 of the movable fixture 4 and the fixed fixture 5, and remove the polished drive shaft.

[0042] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0043] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A surface polishing apparatus for automobile driveshaft production, characterized in that, The device includes a worktable (1), on which a polishing assembly (2) and an installation unit (3) are provided. The installation unit (3) includes a movable fixture (4) and a fixed fixture (5). The movable fixture (4) is used to clamp the drive shaft to be polished, and the fixed fixture (5) is used to clamp a standard drive shaft. Both the movable fixture (4) and the fixed fixture (5) include two symmetrically arranged lifting plates (6) and guide rods (7). The lifting plates (6) are slidably sleeved on the guide rods (7). The two adjacent lifting plates (6) are rotatably connected to a chuck (8) for clamping the drive shaft on the side that is close to each other. The outer surface of the guide rod (7) of the movable fixture (4) is sleeved with a compression spring (17). The two ends of the compression spring (17) are respectively connected to the top of the lifting plate (6) and the top of the worktable (1).

2. The surface polishing apparatus for automobile drive shaft production according to claim 1, characterized in that, The polishing assembly (2) includes a slide (9), a slider (10) is provided at the bottom of the slide (9), a groove (11) is provided on the worktable (1) to slide and cooperate with the slider (10), a polishing motor (12) is fixedly installed on the slide (9), and a grinding wheel (13) is installed at the output end of the polishing motor (12).

3. The surface polishing apparatus for automobile drive shaft production according to claim 2, characterized in that, The workbench (1) is symmetrically fixedly mounted with protrusions (14), and a screw (15) is rotatably connected between the two protrusions (14). The slide (9) is threadedly connected to the screw (15). A stepper motor (16) is fixedly mounted on the workbench (1), and the output end of the stepper motor (16) is fixedly connected to one end of the screw (15).

4. The surface polishing apparatus for automobile drive shaft production according to claim 3, characterized in that, The movable fixture also includes a gantry frame (18) fixedly installed on the top of the lifting plate (6) of the two movable fixtures (4). The gantry frame (18) is located below the lifting plate (6) of the fixed fixture (5). A sliding sleeve (19) is slidably connected on the gantry frame (18). A frame (20) is fixedly connected to the bottom of the sliding sleeve (19). A bracket (21) is fixedly connected to the top of the sliding sleeve (19). A contact wheel (22) is fixedly connected to the top of the bracket (21). The contact wheel (22) is in contact with the bottom end of the standard drive shaft.

5. The surface polishing apparatus for automobile drive shaft production according to claim 4, characterized in that, A synchronizing rod (23) is fixedly connected to the slide (9). One end of the synchronizing rod (23) passes through the frame (20) and is slidably connected to the inner wall of the frame (20). When the contact wheel (22) contacts the standard drive shaft, the working surface of the grinding wheel (13) contacts the drive shaft to be polished. At this time, the working surface of the grinding wheel (13) and the contact wheel (22) are axially synchronized.

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