An automatic feeding and clamping device for automobile transmission shaft machining

Abstract

The utility model relates to the technical field of automobile transmission shaft processing equipment, especially a kind of automatic feeding clamping equipment for automobile transmission shaft processing, including processing table, the upper end surface of processing table is fixedly installed with horizontal seat shell, limit half shell is fixedly installed on horizontal seat shell, the upper end surface of limit half shell is buckled and installed with positioning shell, a plurality of turnover wheel seats are rotatably installed between limit half shell and positioning shell, and driving assembly that drives a plurality of turnover wheel seats synchronous rotation is installed in horizontal seat shell, a plurality of clamping pieces are slidably installed in the turnover wheel seat along the circumferential direction, and movable disc that drives clamping piece to carry out clamping is also installed on turnover wheel seat.The automatic feeding clamping equipment of the application realizes the automatic feeding and clamping function in the automobile transmission shaft processing process, reduces manual intervention, and improves production efficiency. Through the cooperation of bottom electric cylinder and auxiliary push plate, the position of transmission shaft can be quickly and accurately adjusted.

Description

Technical Field

[0001] This utility model relates to the technical field of automotive drive shaft processing equipment, and in particular to an automatic feeding and clamping device for automotive drive shaft processing. Background Technology

[0002] The automotive driveshaft is a core component of the transmission system, and its machining accuracy directly affects the vehicle's driving stability and service life. Mass production requires multiple processes such as shaft end cutting and spline machining. The degree of automation, positioning accuracy, and clamping stability of the machining equipment play a decisive role in production efficiency and product qualification rate. Currently, the mainstream machining equipment in the industry is based on dedicated machine tools, equipped with manual or semi-automatic feeding and clamping mechanisms. A typical structure includes a fixed machining table, a manually adjustable positioning seat, a simple clamping device, and a manual auxiliary feeding component.

[0003] Traditional automotive driveshaft machining equipment uses a rigid, one-piece machining table that cannot be flexibly adjusted according to the length and diameter of the driveshaft. Positioning seats are fixed to V-blocks or baffles with bolts, requiring manual tightening of bolts for position correction. This adjustment is cumbersome, and accuracy is affected by operator experience, making it difficult to guarantee consistent positioning. Clamping devices are mostly single-point or two-point structures, such as cylinder-driven flat-jaw vises, which are prone to driveshaft deformation due to concentrated force, or to slight wobbling during machining due to uneven clamping force, leading to quality problems such as shaft head dimensional deviations and excessive surface roughness.

[0004] Meanwhile, during the processing, after each step is completed, operators need to manually pick up and put down the drive shaft, adjust its position, and then install it to the next workstation. This is time-consuming, labor-intensive, and inefficient, making it difficult to meet the needs of large-scale continuous production. Although some semi-automated equipment has chain or roller conveyor feeding mechanisms, they can only perform preliminary feeding and cannot be precisely linked with positioning and clamping actions. They still require manual secondary positioning and correction, which extends the processing cycle and restricts efficiency improvement. Utility Model Content

[0005] This invention solves the problems in related technologies and proposes an automatic feeding and clamping device for processing automotive drive shafts.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0007] An automatic feeding and clamping device for machining automotive drive shafts includes a machining table. A horizontal base is fixedly mounted on the upper surface of the machining table. A limiting half-shell is fixedly mounted on the horizontal base. A positioning shell is fastened to the upper surface of the limiting half-shell. A plurality of rotating wheel seats are rotatably mounted between the limiting half-shell and the positioning shell. A drive assembly for driving the plurality of rotating wheel seats to rotate synchronously is installed in the horizontal base. A plurality of clamping members are slidably mounted in the rotating wheel seats along the circumferential direction. A movable disc for clamping the clamping members is also mounted on the rotating wheel seats. A linkage assembly for driving the movable disc to move laterally is also installed in the positioning shell. An adjustable height support is fixedly mounted at one end of the upper surface of the machining table. A bottom electric cylinder is fixedly mounted in the horizontal base. An auxiliary push plate is vertically mounted at the output end of the bottom electric cylinder.

[0008] As a preferred embodiment, the inner side of the limiting half shell is provided with a positioning bottom groove for the rotating wheel seat to be installed, and the lower end face of the limiting half shell is also provided with a connecting middle groove that communicates with the horizontal seat shell. The connecting middle groove is connected to the positioning bottom groove.

[0009] As a preferred embodiment, the positioning shell includes a connecting middle shell and an arc-shaped bracket, the arc-shaped bracket being symmetrically installed on both sides of the connecting middle shell and fixedly connected to the connecting middle shell.

[0010] As a preferred embodiment, the flipping wheel seat includes an outer wheel rim and an inner wheel rim. The outer wheel rim has a mating tooth groove on its outer side surface. The inner wheel rim is coaxially fixed on the inner side surface of the outer wheel rim, and the inner wheel rim has a guide groove for sliding installation of the clamping component. A positioning slide rod is also fixedly installed on the outer side surface of the inner wheel rim.

[0011] As a preferred embodiment, a positioning plate is fixedly installed in the guide groove, and a support spring for the support clamping component is fixedly installed in the middle of the positioning plate.

[0012] As a preferred embodiment, the drive assembly includes a motor and a gear roller corresponding to a mating tooth groove. The gear roller is rotatably mounted in a horizontal housing, and the motor is fixedly mounted in the horizontal housing for driving the gear roller to rotate.

[0013] As a preferred embodiment, the clamping component includes a concave movable frame and an arc-shaped clamping plate. The concave movable frame is slidably installed in the guide groove, and an inclined pressure block is fixedly installed on the upper end surface of the concave movable frame. The arc-shaped clamping plate is fixedly installed on the lower end of the concave movable frame.

[0014] As a preferred embodiment, the movable disc includes an annular plate and a mating pressure plate corresponding to the inclined pressure block. The annular plate is slidably mounted on the positioning slide rod, and the mating pressure plate is uniformly fixed on the inner side of the annular plate along the circumferential direction. The mating pressure plate is provided with a pressing inclined surface corresponding to the inclined pressure block.

[0015] As a preferred embodiment, the linkage assembly includes a top hydraulic cylinder, a horizontal plate seat, and a vertical plate that pushes the annular plate to move laterally. The top hydraulic cylinder is fixedly installed in the connecting middle shell, the horizontal plate seat is slidably installed in the connecting middle shell, and the vertical plate is evenly fixed on the lower end face of the horizontal plate seat.

[0016] As a preferred embodiment, the adjustable height support includes a base, an arc-shaped bracket, and a longitudinal electric cylinder for adjusting the distance between the base and the arc-shaped bracket. The arc-shaped bracket is slidably mounted on the base, and the longitudinal electric cylinder is fixedly mounted in the base.

[0017] Compared with existing technologies, the beneficial effects of this utility model are as follows: The automatic feeding and clamping equipment of this application realizes the automatic feeding and clamping functions in the processing of automotive drive shafts, reducing manual intervention and improving production efficiency. Through the cooperation of the bottom electric cylinder and auxiliary push plate, the position of the drive shaft can be quickly and accurately adjusted, enabling continuous processing and greatly shortening the processing cycle. Simultaneously, the clamping component stably clamps the drive shaft through the arc-shaped clamping plate, with uniform clamping force, effectively preventing the drive shaft from shaking and shifting during processing, ensuring processing accuracy and quality. Furthermore, the adjustable height support platform can provide auxiliary support for longer drive shafts, increasing stability during processing and further improving processing quality. In addition, the drive assembly can realize the synchronous rotation of multiple tilting wheel seats, and the rotation angle and speed can be adjusted according to different processing requirements to meet diverse processing needs. Attached Figure Description

[0018] Figure 1 This is a perspective view of the overall structure in an embodiment of this utility model;

[0019] Figure 2 yes Figure 1 A front view of the device shown;

[0020] Figure 3 This is a perspective view of the processing table, horizontal base shell, positioning shell, drive assembly, linkage assembly and adjustable height support platform in the embodiment of this utility model.

[0021] Figure 4 yes Figure 3 Side view of the device shown;

[0022] Figure 5 This is a perspective view of the rotating wheel seat, drive assembly, and clamping component in cooperation according to an embodiment of the present utility model;

[0023] Figure 6 yes Figure 5 A front view of the device shown;

[0024] Figure 7 This is a perspective view of the movable plate in an embodiment of this utility model.

[0025] In the diagram: 1. Machining table; 2. Horizontal base housing; 21. Bottom electric cylinder; 22. Auxiliary push plate; 3. Limiting half-shell; 31. Positioning bottom groove; 32. Connecting middle groove; 4. Positioning shell; 41. Connecting middle shell; 42. Arc-shaped bracket; 5. Tilting wheel seat; 51. Outer wheel rim; 511. Mating tooth groove; 52. Inner wheel rim; 521. Guide groove; 522. Positioning slide rod; 53. Positioning base plate; 531. Support 6. Spring; 7. Drive assembly; 8. Motor; 9. Gear roller; 10. Clamping component; 11. Concave movable frame; 12. Inclined pressure block; 13. Arc-shaped clamping plate; 14. Movable disc; 15. Annular plate; 16. Matching pressure plate; 17. Linkage assembly; 18. Top hydraulic cylinder; 19. Horizontal plate seat; 10. Vertical plate; 11. Adjustable height support; 12. Seat; 13. Arc-shaped bracket; 14. Longitudinal electric cylinder. Detailed Implementation

[0026] 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. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present utility model or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0027] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0028] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following figures denote similar items; therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0029] In the description of this utility model, it should be understood that the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" 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. Unless otherwise stated, these directional terms 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, and therefore should not be construed as a limitation on the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0030] For ease of description, spatial relative terms such as "above," "over," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "above" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0031] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this utility model.

[0032] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 An automatic feeding and clamping device for processing automotive drive shafts includes a processing table 1. A horizontal base shell 2 is fixedly installed on the upper surface of the processing table 1. A limiting half shell 3 is fixedly installed on the horizontal base shell 2. A positioning shell 4 is fastened to the upper surface of the limiting half shell 3. A plurality of rotating wheel seats 5 are rotatably installed between the limiting half shell 3 and the positioning shell 4. A drive assembly 6 is installed in the horizontal base shell 2 to drive the plurality of rotating wheel seats 5 to rotate synchronously. A plurality of clamping parts 7 are slidably installed in the rotating wheel seats 5 along the circumferential direction. A movable disk 8 for clamping the clamping parts 7 is also installed on the rotating wheel seats 5. A linkage assembly 9 for driving the movable disk 8 to move laterally is also installed in the positioning shell 4. An adjustable height support 10 is fixedly installed at one end of the upper surface of the processing table 1. A bottom electric cylinder 21 is fixedly installed in the horizontal base shell 2. An auxiliary push plate 22 is vertically installed at the output end of the bottom electric cylinder 21. The machining table 1 ensures stable operation of the equipment. A horizontal base shell 2 is fixedly installed on the upper surface of the machining table 1, facilitating the installation of the limiting half-shell 3. A positioning shell 4 is fixedly installed on the limiting half-shell 3, simplifying the installation of components such as the limiting half-shell 3 and the positioning shell 4. This provides a stable mounting base and working space for the tilting wheel seat 5, drive assembly 6, and clamping components 7. During operation, the drive assembly 6 drives the tilting wheel seat 5 to rotate. Once the transmission shaft is installed in the tilting wheel seat 5, it can be clamped and fixed by the clamping components 7. The drive assembly 6 then controls the processing angle of the transmission shaft, making it very convenient to use. The adjustable height support 10 can adapt to the processing needs of transmission shafts of different lengths, improving the versatility of the equipment and the stability of the processing process. The cooperation between the bottom electric cylinder 21 and the auxiliary push plate 22 enables automatic feeding of the transmission shaft, reducing manual intervention and improving production efficiency.

[0033] Reference Figure 3 The inner side of the limiting half-shell 3 is provided with a positioning groove 31 for the rotating installation of the tilting wheel seat 5, and the lower end face of the limiting half-shell 3 is also provided with a connecting groove 32 that communicates with the horizontal seat shell 2. The connecting groove 32 is connected to the positioning groove 31. The positioning groove 31 on the limiting half-shell 3 provides a precise rotational installation position for the tilting wheel seat 5, ensuring the stability and accuracy of the rotation of the tilting wheel seat 5. The setting of the connecting groove 32 connects the horizontal seat shell 2 with the interior of the limiting half-shell 3, providing a channel for the installation and transmission of the drive assembly 6, ensuring that the drive assembly 6 can smoothly drive the tilting wheel seat 5 to rotate.

[0034] Reference Figure 2 and Figure 3The positioning shell 4 includes a connecting middle shell 41 and an arc-shaped bracket 42. The arc-shaped bracket 42 is symmetrically installed on both sides of the connecting middle shell 41 and is fixedly connected to the connecting middle shell 41. The structural design of the positioning shell 4 using the connecting middle shell 41 and the arc-shaped bracket 42 ensures the stability of the structure and provides installation space for components such as the linkage assembly 9. The symmetrical installation of the arc-shaped bracket 42 on both sides of the connecting middle shell 41 enhances the overall strength of the positioning shell 4 and effectively protects the internal components from external interference.

[0035] Reference Figure 5 and Figure 6 The tilting wheel seat 5 includes an outer wheel rim 51 and an inner wheel rim 52. The outer wheel rim 51 has a mating toothed groove 511 on its outer surface. The inner wheel rim 52 is coaxially fixed to the inner surface of the outer wheel rim 51, and has a guide groove 521 for sliding installation of the clamping member 7. A positioning slide rod 522 is also fixedly installed on the outer surface of the inner wheel rim 52. The mating toothed groove 511 on the outer wheel rim 51 of the tilting wheel seat 5 engages with the gear roller 62 of the drive assembly 6, enabling the tilting wheel seat 5 to rotate. The guide groove 521 on the inner wheel rim 52 provides guidance for the sliding of the clamping member 7, ensuring that the clamping member 7 can move accurately up and down, thereby achieving the clamping and releasing operation of the drive shaft. The positioning slide rod 522 provides stable support and guidance for the sliding of the movable disc 8, ensuring that the movable disc 8 can accurately push the clamping member 7. A positioning plate 53 is fixedly installed in the guide groove 521, and a support spring 531 for supporting the clamping member 7 is fixedly installed in the middle of the positioning plate 53. The positioning plate 53 and the support spring 531 in the guide groove 521 ensure that the clamping member 7 can be held in a certain position when no external force is applied. When the top cylinder 91 retracts, the support spring 531 can move the clamping member 7 upward, releasing the lock on the drive shaft, realizing the automatic reset function of the clamping member 7, and ensuring the normal operation of the equipment.

[0036] Reference Figure 3 The drive assembly 6 includes a motor 61 and a gear roller 62 corresponding to the mating tooth groove 511. The gear roller 62 is rotatably mounted in the horizontal housing 2, and the motor 61 is fixedly mounted in the horizontal housing 2 to drive the gear roller 62 to rotate. The drive assembly 6 uses the motor 61 to drive the gear roller 62 to rotate. Through the meshing of the gear roller 62 with the mating tooth groove 511 on the outer ring 51 of the tilting wheel seat 5, the synchronous rotation of multiple tilting wheel seats 5 can be achieved. This transmission method has high transmission efficiency and good stability, and can accurately control the rotation angle and speed of the tilting wheel seat 5 to meet different processing requirements.

[0037] Reference Figure 5 and Figure 6The clamping component 7 includes a concave movable frame 71 and an arc-shaped clamping plate 72. The concave movable frame 71 is slidably installed in the guide groove 521, and a sloping pressure block 711 is fixedly installed on the upper end surface of the concave movable frame 71. The arc-shaped clamping plate 72 is fixedly installed on the lower end of the concave movable frame 71. The structural design of the concave movable frame 71 and the arc-shaped clamping plate 72 of the clamping component 7 allows the arc-shaped clamping plate 72 to better conform to the surface of the drive shaft, increasing the uniformity and stability of the clamping force. The sloping pressure block 711 cooperates with the mating pressure plate 82 of the movable disc 8, which can convert the lateral movement of the movable disc 8 into the vertical movement of the clamping component 7, realizing the clamping and releasing operation of the drive shaft.

[0038] Reference Figure 7 The movable disc 8 includes an annular plate 81 and a mating pressure plate 82 corresponding to the inclined pressure block 711. The annular plate 81 is slidably mounted on the positioning slide rod 522. The mating pressure plate 82 is evenly fixed on the inner side of the annular plate 81 along the circumferential direction, and the mating pressure plate 82 has a pressing inclined surface corresponding to the inclined pressure block 711. The structural design of the annular plate 81 and the mating pressure plate 82 of the movable disc 8 allows the mating pressure plate 82 to be evenly distributed on the inner side of the annular plate 81. The pressing inclined surface on the mating pressure plate 82 cooperates with the inclined pressure block 711 of the clamping member 7, so that when the movable disc 8 moves towards the flipping wheel seat 5, the clamping member 7 is pressed down, thereby achieving stable clamping of the transmission shaft.

[0039] Reference Figure 3 and Figure 4 The linkage assembly 9 includes a top hydraulic cylinder 91, a horizontal plate seat 92, and a vertical plate 93 that pushes the annular plate 81 to move laterally. The top hydraulic cylinder 91 is fixedly installed in the connecting middle shell 41, the horizontal plate seat 92 is slidably installed in the connecting middle shell 41, and the vertical plate 93 is evenly fixed to the lower end face of the horizontal plate seat 92. The linkage assembly 9 uses the top hydraulic cylinder 91 to drive the horizontal plate seat 92 and the vertical plate 93 to move synchronously, which can accurately control the moving distance and speed of the movable disc 8. The vertical plate 93 can effectively push the movable disc 8 to move towards the tilting wheel seat 5, realizing the clamping and releasing operation of the transmission shaft.

[0040] Reference Figure 2 The adjustable height support 10 includes a base 101, an arc-shaped bracket 102, and a longitudinal electric cylinder 103 for adjusting the distance between the base 101 and the arc-shaped bracket 102. The arc-shaped bracket 102 is slidably mounted on the base 101, and the longitudinal electric cylinder 103 is fixedly mounted in the base 101. The structural design of the base 101, arc-shaped bracket 102, and longitudinal electric cylinder 103 of the adjustable height support 10 allows for adjustment of the height of the arc-shaped bracket 102 via the longitudinal electric cylinder 103, according to the length of the drive shaft and processing requirements, thus providing auxiliary support to one end of the drive shaft. This increases stability during processing, making it particularly suitable for processing long drive shafts and effectively improving processing quality.

[0041] Working principle:

[0042] Install the processing table 1 in a suitable working position, ensuring that components such as the horizontal seat 2, the limiting half-shell 3, and the positioning shell 4 are securely installed. Install the power components such as the motor 61, the top hydraulic cylinder 91, the bottom electric cylinder 21, and the longitudinal electric cylinder 103 in their respective positions as required, and connect the power supply and control lines. In actual use, place the transmission shaft to be processed in the tilting wheel seat 5, ensuring the transmission shaft is accurately positioned. Start the top hydraulic cylinder 91; the piston rod of the top hydraulic cylinder 91 extends, driving the horizontal plate seat 92 and the vertical plate 93 to move synchronously. The vertical plate 93 pushes the movable disc 8 towards the tilting wheel seat 5, cooperating with the pressure plate 82 and the inclined pressure block 711 to press down the clamping part 7, and the arc-shaped clamping plate 72 stably clamps the transmission shaft. Perform head processing on the transmission shaft. After processing, start the top hydraulic cylinder 91 to retract; the clamping part 7 moves upward under the action of the support spring 531, releasing the lock on the transmission shaft. The bottom electric cylinder 21 is activated to retract, driving the auxiliary push plate 22 to move the transmission shaft for feeding, and the position of the transmission shaft is adjusted. The top hydraulic cylinder 91 is activated again to lock the transmission shaft, and the processing operation continues. When the transmission shaft is long, the longitudinal electric cylinder 103 is activated to adjust the height of the arc-shaped bracket 102. The adjustable height support 10 provides auxiliary support to one end of the transmission shaft, increasing stability during processing.

[0043] The above are preferred embodiments of this utility model. Those skilled in the art can make changes and modifications to the above embodiments. Therefore, this utility model is not limited to the specific embodiments described above. Any obvious improvements, substitutions or modifications made by those skilled in the art based on this utility model shall fall within the protection scope of this utility model.

Claims

1. An automatic feeding and clamping device for machining automotive drive shafts, comprising a machining table (1), characterized in that: A horizontal base shell (2) is fixedly installed on the upper surface of the processing table (1). A limiting half shell (3) is fixedly installed on the horizontal base shell (2). A positioning shell (4) is fastened to the upper surface of the limiting half shell (3). A number of rotating wheel seats (5) are rotatably installed between the limiting half shell (3) and the positioning shell (4). A driving component (6) for driving the rotating wheel seats (5) to rotate synchronously is installed in the horizontal base shell (2). A number of clamping parts (7) are slidably installed in the rotating wheel seats (5) along the circumferential direction. A movable disk (8) for driving the clamping parts (7) to clamp is also installed on the rotating wheel seats (5). A linkage component (9) for driving the movable disk (8) to move laterally is also installed in the positioning shell (4). An adjustable height support (10) is fixedly installed at one end of the upper surface of the processing table (1). A bottom electric cylinder (21) is fixedly installed in the horizontal base shell (2). An auxiliary push plate (22) is vertically installed at the output end of the bottom electric cylinder (21).

2. The automatic feeding and clamping device for processing automotive drive shafts according to claim 1, characterized in that: The inner side of the limiting half shell (3) is provided with a positioning bottom groove (31) for the rotating wheel seat (5) to be installed, and the lower end face of the limiting half shell (3) is also provided with a connecting middle groove (32) that communicates with the horizontal seat shell (2). The connecting middle groove (32) is connected to the positioning bottom groove (31).

3. An automatic feeding and clamping device for machining automotive drive shafts according to claim 2, characterized in that: The positioning shell (4) includes a connecting middle shell (41) and an arc-shaped bracket (42). The arc-shaped bracket (42) is symmetrically installed on both sides of the connecting middle shell (41) and is fixedly connected to the connecting middle shell (41).

4. An automatic feeding and clamping device for machining automotive drive shafts according to claim 3, characterized in that: The flip wheel seat (5) includes an outer wheel ring (51) and an inner wheel ring (52). The outer wheel ring (51) has a mating tooth groove (511) on its outer side surface. The inner wheel ring (52) is coaxially fixed on the inner side surface of the outer wheel ring (51). The inner wheel ring (52) has a guide groove (521) for the clamping member (7) to slide and install. A positioning slide rod (522) is also fixedly installed on the outer side surface of the inner wheel ring (52).

5. An automatic feeding and clamping device for machining automotive drive shafts according to claim 4, characterized in that: A positioning plate (53) is fixedly installed in the guide groove (521), and a support spring (531) of the support clamp (7) is fixedly installed in the middle of the positioning plate (53).

6. An automatic feeding and clamping device for machining automotive drive shafts according to claim 5, characterized in that: The drive assembly (6) includes a motor (61) and a gear roller (62) corresponding to a mating tooth groove (511). The gear roller (62) is rotatably mounted in a horizontal housing (2), and the motor (61) is fixedly mounted in the horizontal housing (2) for driving the gear roller (62) to rotate.

7. An automatic feeding and clamping device for machining automotive drive shafts according to claim 6, characterized in that: The clamping member (7) includes a concave movable frame (71) and an arc-shaped clamping plate (72). The concave movable frame (71) is slidably installed in the guide groove (521). An inclined pressure block (711) is fixedly installed on the upper end surface of the concave movable frame (71). The arc-shaped clamping plate (72) is fixedly installed on the lower end of the concave movable frame (71).

8. An automatic feeding and clamping device for machining automotive drive shafts according to claim 7, characterized in that: The movable plate (8) includes an annular plate (81) and a mating pressure plate (82) corresponding to the inclined pressure block (711). The annular plate (81) is slidably mounted on the positioning slide rod (522). The mating pressure plate (82) is uniformly fixed on the inner side of the annular plate (81) along the circumferential direction, and the mating pressure plate (82) is provided with a pressing inclined surface corresponding to the inclined pressure block (711).

9. An automatic feeding and clamping device for machining automotive drive shafts according to claim 8, characterized in that: The linkage component (9) includes a top cylinder (91), a horizontal plate seat (92), and a vertical plate (93) that pushes the annular plate (81) to move laterally. The top cylinder (91) is fixedly installed in the connecting middle shell (41), the horizontal plate seat (92) is slidably installed in the connecting middle shell (41), and the vertical plate (93) is evenly fixed on the lower end face of the horizontal plate seat (92).

10. An automatic feeding and clamping device for machining automotive drive shafts according to any one of claims 2-9, characterized in that: The adjustable height support (10) includes a base (101), an arc-shaped bracket (102), and a longitudinal electric cylinder (103) for adjusting the distance between the base (101) and the arc-shaped bracket (102). The arc-shaped bracket (102) is slidably mounted on the base (101), and the longitudinal electric cylinder (103) is fixedly mounted in the base (101).

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