A clamping device for long axis processing

Abstract

The application relates to the technical field of long shaft machining, and particularly discloses a clamping device for long shaft machining, which comprises a machining table, a rotating slot is arranged at the top end of the machining table and used for rotating a long shaft part, a rotating penetrating shaft table is arranged above the machining table, and the long shaft part is arranged on the inner side of the rotating penetrating shaft table. Through the arrangement of a fixed shaft assembly, a rotating joint driving disc is rotated, the clamping shaft arc plate can be expanded or contracted, the long shaft part can be clamped and fixed, one end of the long shaft part can be conveniently machined, the middle part of the long shaft part is clamped by the fixed shaft assembly, the processing end of the long shaft part can be changed by rotating the motor to drive the long shaft part to overturn, the long shaft part does not need to be disassembled, and therefore the machining efficiency and machining precision of the long shaft part are improved.

Description

Technical Field

[0001] This application relates to the field of long shaft machining technology, and in particular to a clamping device for machining long shafts. Background Technology

[0002] Long shafts generally refer to shaft-type parts with relatively long lengths. They are common transmission components in mechanical equipment, characterized by their considerable length and relatively large diameter, and are widely used in various mechanical equipment and systems, such as machine tools, automobiles, and aerospace. When machining long shaft-type parts, one end is typically clamped while the other end is supported by an auxiliary frame and rollers, allowing the long shaft to rotate freely.

[0003] However, the existing technology still has the following problems: if it is necessary to process the other end of the long shaft, the long shaft needs to be removed and the clamping end and processing end need to be replaced, which reduces the processing efficiency of the long shaft and reduces the processing accuracy. Summary of the Invention

[0004] This application provides a clamping device for machining long shafts, which solves the problem in the prior art that when machining the other end of a long shaft, the long shaft needs to be removed and the clamping end and machining end need to be replaced, which reduces the machining efficiency and machining accuracy of the long shaft. This application achieves the goal of not disassembling long shaft parts, thereby improving the machining efficiency and machining accuracy of long shaft parts.

[0005] This application provides a clamping device for machining long shafts, including:

[0006] A processing table, the top of which is provided with a transfer slot for rotating long shaft-type parts;

[0007] A rotating shaft-passing table is provided above the processing table. The long shaft-type parts are passed through the inner side of the rotating shaft-passing table. A rotating plate frame is rotatably provided on the outer side of the rotating shaft-passing table. A rotating motor is provided on one side of the rotating plate frame. The rotating plate frame is fixedly provided on the drive end of the rotating motor.

[0008] A shaft fixing assembly is disposed at one end of a rotating through-shaft stage, and the shaft fixing assembly is used to clamp long shaft-type parts;

[0009] The fixed shaft assembly includes a drive disk, which is rotatably mounted at one end of the rotating shaft platform. The end face of the drive disk has four waist-shaped sliding grooves. Sliding short columns are slidably arranged inside the waist-shaped sliding grooves. A guide column is fixedly arranged at one end of each sliding short column. A shaft clamping arc plate is fixedly arranged on the side of the guide columns that are close to each other. An anti-slip pad is fixedly arranged on the inner side of the shaft clamping arc plate.

[0010] Furthermore, a return spring is fixedly provided on one side of the guide slide column that is far apart from each other, and a fixed guide slide bracket is fixedly provided on the other end of the return spring. The fixed guide slide bracket is slidably provided on the outside of the guide slide column. The fixed guide slide bracket is detachably provided on the outside of the rotating through-shaft platform. A rocker handle is fixedly provided on the end face of the drive disc.

[0011] Furthermore, an external gear ring is fixedly installed on the outer side of the rotating through-shaft stage, and a drive gear is meshed on the outer side of the external gear ring. A servo motor is installed at one end of the drive gear, and the drive gear is fixedly installed on the drive end of the servo motor. The drive gear is rotatably installed on the inner side of the rotating plate frame, and the servo motor is fixedly installed on one side of the rotating plate frame. The servo motor drives the drive gear to rotate, and the rotation of the drive gear drives the external gear ring to rotate, so that the external gear ring can drive the rotating through-shaft stage, the fixed shaft assembly, and the clamped long shaft parts to rotate, so that the long shaft parts can be processed.

[0012] Furthermore, a locking structure is provided on the outer side of the drive disc, the locking structure including a ratchet ring, the ratchet ring being fixedly disposed on the outer side of the drive disc, a locking pawl engaging on the outer side of the ratchet ring, a spring end seat rotatably disposed on the other side of the locking pawl, a compound pawl spring being fixedly disposed on the other end of the spring end seat, a fixed connecting crossbar being fixedly disposed on the other end of the compound pawl spring, fixed pawl brackets being fixedly disposed on both sides of the fixed connecting crossbar, a receiving connecting frame being fixedly disposed at the bottom end of the fixed pawl bracket, the receiving connecting frame being detachably disposed on one side of the fixed connecting guide frame, and the locking pawl being fixed on both sides. Equipped with a pull claw handle, when clamping long shaft-type parts, the locking structure needs to be unlocked to allow the drive disc to rotate normally. After machining, when it is necessary to release the long shaft-type parts, simply rotate the drive disc in the opposite direction. At this time, the ratchet ring will rotate accordingly. The rotation of the ratchet ring will move the ratchet ring, and the movement of the locking claw will compress the return claw spring. Through the elastic force of the return claw spring, the locking claw can enter the next tooth of the ratchet ring and continue to engage, thus restoring the locked state. Furthermore, when machining long shaft-type parts, the rotation direction of the rotating shaft table is counterclockwise, thus achieving the locking relationship through the locking structure.

[0013] Furthermore, a stationary plate is rotatably mounted on one side of the rotating plate frame, and a stationary plate is fixedly mounted on the outside of the rotating motor. The stationary plate is detachably mounted on the top of the processing table.

[0014] Furthermore, an electric telescopic rod is fixedly installed on one side of the top of the processing table, and the telescopic end of the electric telescopic rod is provided with a fixed axis structure, which is used to position long shaft parts.

[0015] Furthermore, the fixed-axis structure includes a transfer tray, a return spring fixedly mounted on the end face of the transfer tray, a movable seat fixedly mounted on the other end of the return spring, four first connecting arms rotatably mounted on the outer side of the movable seat, a sliding seat rotatably mounted on the other end of the first connecting arms, a second connecting arm rotatably mounted on the outer side of the sliding seat, and a clamping plate rotatably mounted on the other end of the second connecting arm. An electric telescopic rod can move the fixed-axis structure away from or closer to long-shaft-type parts, facilitating pre-clamping of the long-shaft-type parts. When positioning long-shaft-type parts, one end of the long-shaft-type parts contacts the guide rod in the fixed-axis structure. Through the movement of the fixed-axis structure, the guide rod presses the movable seat, compressing the return spring. Simultaneously, the first connecting arms are driven, and the angle between the first connecting arms and the transfer tray gradually decreases. The first connecting arms then push the sliding seat to move, causing the second connecting arms to tilt, allowing the clamping plate to clamp the long-shaft-type parts.

[0016] Furthermore, the sliding seat is slidably disposed on the end face of the transfer tray, a rotating arm fixed support plate is symmetrically rotatably disposed on the outer side of the second connecting arm, the rotating arm fixed support plate is fixedly disposed on the outer side of the transfer tray, a touch guide rod is fixedly disposed on the other end face of the moving seat, and a seat plate is rotatably disposed on the other end face of the transfer tray, the seat plate is slidably disposed on the top of the processing table.

[0017] Furthermore, the clamping arc plate and the anti-slip pad are arc-shaped, and the anti-slip pad is made of rubber material to prevent long shaft parts from sliding.

[0018] The technical solution provided in this application has at least the following technical effects or advantages:

[0019] 1. This application, through the setting of the fixed shaft assembly, allows the rotating drive disk to expand or contract the clamping arc plate, thereby clamping and fixing long shaft parts, facilitating the processing of one end of the long shaft parts. Furthermore, the fixed shaft assembly clamps the middle of the long shaft parts, and the machining end of the long shaft parts can be changed by rotating the motor to drive the long shaft parts to flip, without the need to disassemble the long shaft parts, thereby improving the processing efficiency and accuracy of long shaft parts.

[0020] 2. This application, through the setting of the locking structure, prevents the drive disc from rotating arbitrarily, thus preventing long shaft parts from detaching during processing and increasing the safety of long shaft parts during processing.

[0021] 3. By setting a fixed shaft structure, this application can clamp one end of a long shaft-type part and position the long shaft-type part while clamping it, so that the long shaft-type part can be located in the middle of the inner side of the rotating through-shaft stage, which improves the clamping accuracy of the fixed shaft assembly for the long shaft-type part, and can also support one end of the long shaft-type part, thereby improving the stability of the long shaft-type part during processing. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural diagram of an embodiment of this application.

[0023] Figure 2 This is a three-dimensional structural diagram of the combination of the rotating through-shaft platform and the fixed shaft assembly in the embodiments of this application.

[0024] Figure 3 This is a schematic diagram showing the disassembled structure of some of the fixed shaft components in the embodiments of this application.

[0025] Figure 4 This is a schematic diagram of the combination of the rotary through-shaft stage and the servo motor, as well as the disassembled structure of the drive disk and ratchet ring in the embodiment of this application.

[0026] Figure 5 This is a schematic diagram of the disassembled locking structure in the embodiment of this application.

[0027] Figure 6 This is a schematic diagram of the rotating plate frame in the embodiment of this application.

[0028] Figure 7 This is a schematic diagram of the split structure of the fixed-axis structure in the embodiment of this application.

[0029] In the diagram: 1. Machining table; 101. Transfer slot; 2. Rotating through-shaft table; 201. External gear ring; 3. Shaft fixing assembly; 301. Drive disc; 3011. Waist-shaped slide groove; 302. Handle of rocker plate; 303. Guide slide column; 3031. Sliding short column; 304. Return spring; 305. Fixed connection guide slide; 306. Shaft clamping arc plate; 307. Anti-slip pad; 4. Locking structure; 401. Ratchet ring; 402. Anti-locking claw; 403. Connecting spring end seat; 404. Returning claw spring; 405. Fixed connection crossbar. ; 406. Fixed claw frame; 407. Pull claw handle; 408. Receiving connecting frame; 5. Rotary motor; 6. Servo motor; 601. Drive gear; 7. Rotating plate frame; 701. Vertical plate; 8. Electric telescopic rod; 9. Fixed shaft structure; 901. Transfer tray; 902. Return spring; 903. Moving seat; 904. Touch guide rod; 905. First connecting arm; 906. Sliding seat; 907. Second connecting arm; 908. Clamping plate; 909. Rotating arm fixed support plate; 910. Seat slide plate; 10. Long shaft parts. Detailed Implementation

[0030] This application discloses a clamping device for machining long shafts. By setting the shaft fixing assembly 3, rotating the drive disk 301 allows the shaft clamping arc plate 306 to expand or contract, thereby clamping and fixing the long shaft part 10, which facilitates machining one end of the long shaft part 10. The shaft fixing assembly 3 clamps the middle of the long shaft part 10, and the machining end of the long shaft part 10 can be changed by rotating the long shaft part 10 by the rotary motor 5, without disassembling the long shaft part 10, thereby improving the machining efficiency and machining accuracy of the long shaft part 10.

[0031] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0032] Example 1:

[0033] Reference Figure 1 and Figure 6 This application discloses a clamping device for machining long shafts, including a rotating shaft-passing platform 2 for supporting a fixed shaft assembly 3. The rotating shaft-passing platform 2 is disposed above a machining table 1. A long shaft part 10 passes through the inner side of the rotating shaft-passing platform 2. A rotating plate frame 7 is rotatably disposed on the outer side of the rotating shaft-passing platform 2. A rotary motor 5 is disposed on one side of the rotating plate frame 7. The rotating plate frame 7 is fixedly disposed on the drive end of the rotary motor 5. The fixed shaft assembly 3 is disposed at one end of the rotating shaft-passing platform 2 and is used to clamp the long shaft part 10. The rotating plate frame 7 is used to support the rotation of the rotating shaft-passing platform 2. A standing plate 701 is rotatably disposed on one side of the rotating plate frame 7. The standing plate 701 is fixedly disposed on the outer side of the rotary motor 5. The standing plate 701 is detachably disposed on the top of the machining table 1.

[0034] When machining long shaft parts 10, the long shaft parts 10 are passed through the rotating shaft-passing table 2 and the shaft-fixing assembly 3, and one end of the long shaft parts 10 is pre-clamped by the fixed shaft structure 9. Then, the long shaft parts 10 are fixed by the shaft-fixing assembly 3. At this time, the shaft-fixing assembly 3 is located in the middle of the long shaft parts 10, which makes it easy to flip the long shaft parts 10 later. The machining end can be changed without disassembling the long shaft parts 10. It is simple and convenient to use, and improves the machining efficiency and accuracy of long shaft parts 10.

[0035] When flipping the long shaft part 10, the rotary motor 5 is started. The rotary motor 5 drives the rotary plate frame 7, the rotary through-shaft platform 2, the fixed shaft assembly 3 and the locking structure 4 to flip together, thereby changing the positions of the two ends of the long shaft part 10.

[0036] For details, please refer to Figure 1 , Figure 2 and Figure 3The fixed shaft assembly 3 includes a drive disk 301, which is rotatably mounted at one end of the rotating shaft platform 2. The end face of the drive disk 301 has four waist-shaped sliding grooves 3011. Sliding short columns 3031 are slidably arranged inside the waist-shaped sliding grooves 3011. A guide column 303 is fixedly arranged at one end of the sliding short column 3031. A shaft clamping arc plate 306 is fixedly arranged on the side of the guide column 303 that is close to each other. An anti-slip pad 307 is fixedly arranged inside the shaft clamping arc plate 306. The shaft clamping arc plate 306 and the anti-slip pad 307 are arc-shaped, and the anti-slip pad 307 is made of rubber material.

[0037] When clamping and fixing long shaft-type parts 10, directly grasp the crank handle 302 and shake it to allow the drive disk 301 to rotate. While rotating, the sliding short column 3031 will move along its trajectory inside the waist-shaped slide groove 3011. The sliding short column 3031 will get closer and closer to the center of the drive disk 301, causing the guide slide column 303 to move as well. The clamping arc plates 306 will move closer to each other, thereby achieving a contraction effect, thus clamping and fixing the long shaft-type parts 10, which is convenient for processing the long shaft-type parts 10. The anti-slip pad 307 is set to prevent the long shaft-type parts 10 from rotating during processing, thereby improving its accuracy and stability during processing.

[0038] For further details, please refer to [link / reference]. Figure 1 , Figure 2 and Figure 3 A return spring 304 is fixedly installed on one side of the guide slide column 303 that is far apart from each other. A fixed guide slide bracket 305 is fixedly installed on the other end of the return spring 304. The fixed guide slide bracket 305 is slidably installed on the outside of the guide slide column 303. The fixed guide slide bracket 305 is detachably installed on the outside of the rotating through shaft platform 2. A rocker handle 302 is fixedly installed on the end face of the drive disk 301.

[0039] The return spring 304 is compressed or extended under the movement of the guide slide 303, so that when the long shaft part 10 is not clamped, the guide slide 303 can return to its original position, that is, the clamping arc plate 306 is in an expanded state, which makes it easier for the long shaft part 10 to be inserted into the rotating through shaft platform 2. The fixed connection guide slide 305 is set to stabilize the movement of the guide slide 303 and guide it.

[0040] Among them, an external gear ring 201 is fixedly installed on the outer side of the rotating through-shaft platform 2, and a drive gear 601 is meshed on the outer side of the external gear ring 201. A servo motor 6 is installed at one end of the drive gear 601, and the drive gear 601 is fixedly installed on the drive end of the servo motor 6. The drive gear 601 is rotatably installed on the inner side of the rotating plate frame 7, and the servo motor 6 is fixedly installed on one side of the rotating plate frame 7.

[0041] By starting the servo motor 6, the servo motor 6 drives the drive gear 601 to rotate. The rotation of the drive gear 601 drives the external gear ring 201 to rotate, thereby enabling the external gear ring 201 to drive the rotating through-shaft table 2, the fixed shaft assembly 3 and the clamped long shaft part 10 to rotate, so that the long shaft part 10 can be processed.

[0042] Example 2:

[0043] Reference Figure 1 , Figure 4 and Figure 5 A locking structure 4 is provided on the outer side of the drive disc 301. The locking structure 4 includes a ratchet ring 401, which is fixedly disposed on the outer side of the drive disc 301. A stop pawl 402 is engaged on the outer side of the ratchet ring 401. A spring end seat 403 is rotatably disposed on the other side of the stop pawl 402. A compound pawl spring 404 is fixedly disposed on the other end of the spring end seat 403. A fixed connecting crossbar 405 is fixedly disposed on the other end of the compound pawl spring 404. Fixed pawl brackets 406 are fixedly disposed on both sides of the fixed connecting crossbar 405. A receiving connecting frame 408 is fixedly disposed at the bottom end of the fixed pawl bracket 406. The receiving connecting frame 408 is detachably disposed on one side of the fixed connecting guide slide 305. Pull pawl handles 407 are fixedly disposed on both sides of the stop pawl 402.

[0044] When clamping long shaft-type parts 10, the locking structure 4 needs to be unlocked so that the drive disk 301 can rotate normally. After the processing is completed, when it is necessary to release the long shaft-type parts 10, the drive disk 301 is rotated in the opposite direction. At this time, the ratchet ring 401 will rotate. The rotation of the ratchet ring 401 will move the ratchet ring 401. The movement of the locking pawl 402 will compress the pawl spring 404. Through the elastic force of the pawl spring 404, the locking pawl 402 can enter the next tooth of the ratchet ring 401 and continue to engage, so that the locked state can be restored.

[0045] Furthermore, during the processing of long shaft-type parts 10, the rotation direction of the rotating shaft table 2 is counterclockwise, thereby achieving a locking relationship through the locking structure 4.

[0046] Example 3:

[0047] Reference Figure 1 and Figure 7An electric telescopic rod 8 is fixedly installed on one side of the top of the processing table 1. A fixed shaft structure 9 is installed at the telescopic end of the electric telescopic rod 8. The fixed shaft structure 9 is used to position long shaft parts 10. The fixed shaft structure 9 includes a transfer plate 901. A return spring 902 is fixedly installed on the end face of the transfer plate 901. A movable seat 903 is fixedly installed on the other end of the return spring 902. Four first connecting arms 905 are rotatably installed on the outer side of the movable seat 903. A sliding seat 906 is rotatably installed on the other end of the first connecting arm 905. A second connecting arm 907 is rotatably installed on the outer side of the sliding seat 906. A clamping plate 908 is rotatably installed on the other end of the second connecting arm 907.

[0048] The electric telescopic rod 8 allows the fixed shaft structure 9 to move away from or closer to the long shaft part 10, facilitating pre-clamping of the long shaft part 10. When positioning the long shaft part 10, one end of the long shaft part 10 contacts the guide rod 904 in the fixed shaft structure 9. As the fixed shaft structure 9 moves, the guide rod 904 presses the moving seat 903, compressing the return spring 902. Simultaneously, the first connecting arm 905 is driven, and the angle between the first connecting arm 905 and the transfer plate 901 gradually decreases. The first connecting arm 905 then pushes the sliding seat 906 to move, causing the second connecting arm 907 to tilt, allowing the clamping plate 908 to clamp the long shaft part 10.

[0049] The sliding seat 906 is slidably disposed on the end face of the transfer tray 901. A rotating arm fixed support plate 909 is symmetrically rotatably disposed on the outer side of the second connecting arm 907. The rotating arm fixed support plate 909 is fixedly disposed on the outer side of the transfer tray 901. A touch guide rod 904 is fixedly disposed on the other end face of the moving seat 903. A seat plate 910 is rotatably disposed on the other end face of the transfer tray 901. The seat plate 910 is slidably disposed on the top of the processing table 1.

[0050] Furthermore, the sliding seat 906 slides to adapt to the positional changes of the first connecting arm 905, and allows the second connecting arm 907 to drive the clamping plate 908 to move, so that the clamping plate 908 can position and clamp the long shaft part 10, while the seat slide plate 910 can move under the drive of the electric telescopic rod 8, so that the fixed shaft structure 9 can leave the long shaft part 10, and the long shaft part 10 can be flipped.

[0051] Working principle: When machining long shaft parts 10, the long shaft parts 10 are passed through the rotating shaft-passing table 2 and the shaft-fixing assembly 3, and one end of the long shaft parts 10 is pre-clamped by the fixed shaft structure 9. Then, the long shaft parts 10 are fixed by the shaft-fixing assembly 3, which is located in the middle of the long shaft parts 10 at this time.

[0052] Next, the drive plate 301 is rotated by the crank handle 302. At this time, the sliding short column 3031 can slide inside the waist-shaped slide groove 3011. The sliding short column 3031 moves along the trajectory of the waist-shaped slide groove 3011 and gradually approaches the center, so that the guide slide columns 303 can approach each other and drive the clamping arc plate 306 and the anti-slip pad 307 to approach each other. The clamping arc plate 306 can clamp and fix the long shaft part 10. The anti-slip pad 307 is made of rubber material to prevent the long shaft part 10 from sliding.

[0053] It should be noted that when clamping long shaft-type parts 10, the locking structure 4 needs to be unlocked so that the drive disk 301 can rotate normally. After the processing is completed, when it is necessary to release the long shaft-type parts 10, the drive disk 301 is rotated in the opposite direction. At this time, the ratchet ring 401 will rotate. The rotation of the ratchet ring 401 will move the ratchet ring 401. The movement of the locking pawl 402 will compress the pawl spring 404. Through the elastic force of the pawl spring 404, the locking pawl 402 can enter the next tooth of the ratchet ring 401 and continue to engage, so that the locked state can be restored.

[0054] When the long shaft part 10 is being processed, the servo motor 6 can be started. The servo motor 6 drives the drive gear 601 to rotate. The rotation of the drive gear 601 drives the external gear ring 201 to rotate together, thereby driving the rotating shaft stage 2, the fixed shaft assembly 3 and the long shaft part 10 it holds to rotate together. It should be noted that when the long shaft part 10 is being processed, the rotation direction of the rotating shaft stage 2 is counterclockwise. Thus, through the locking relationship of the locking structure 4, the fixed shaft assembly 3 can rotate together with the long shaft part 10 it holds, which facilitates the processing of one end of the long shaft part 10.

[0055] When machining the other end of the long shaft part 10, the electric telescopic rod 8 is activated, allowing the fixed shaft structure 9 to move away from the long shaft part 10. Then, the rotary motor 5 is activated, driving the rotary plate frame 7, the rotary through-shaft platform 2, the fixed shaft assembly 3, and the locking structure 4 to rotate together, thereby changing the positions of both ends of the long shaft part 10. The transfer slot 101 is provided to provide suitable space when the long shaft part 10 rotates. Then, the fixed shaft structure 9 is returned to its original position, supporting the other end of the long shaft part 10, improving the stability of the long shaft part 10 during machining, and the fixed shaft structure 9 can rotate together with the long shaft part 10 during machining.

[0056] When positioning the long shaft part 10, one end of the long shaft part 10 contacts the guide rod 904 in the fixed shaft structure 9. As the fixed shaft structure 9 moves, the guide rod 904 presses the moving seat 903, causing the return spring 902 to compress. At the same time, the first connecting arm 905 is driven, and the angle between the first connecting arm 905 and the transfer plate 901 gradually decreases. The first connecting arm 905 then pushes the sliding seat 906 to move, which in turn causes the second connecting arm 907 to tilt, so that the clamping plate 908 can clamp the long shaft part 10.

[0057] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this invention and their equivalents, this invention also intends to include these modifications and variations.

[0058] The above description is merely a preferred embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present application, based on the technical solution and concept of the present application, should be covered within the scope of protection of the present application.

Claims

1. A clamping device for machining long shafts, characterized in that: include: The processing table (1) has a transfer slot (101) at the top for rotating long shaft parts (10). A rotating shaft-passing table (2) is set above the processing table (1). The long shaft-type parts (10) are passed through the inner side of the rotating shaft-passing table (2). A rotating plate frame (7) is rotatably set on the outer side of the rotating shaft-passing table (2). A rotating motor (5) is set on one side of the rotating plate frame (7). The rotating plate frame (7) is fixedly set on the drive end of the rotating motor (5). A shaft fixing assembly (3) is disposed at one end of a rotating through-shaft platform (2) and is used to clamp long shaft parts (10). The fixed shaft assembly (3) includes a drive disk (301), which is rotatably mounted on one end of the rotating through shaft platform (2). The end face of the drive disk (301) is provided with four waist-shaped sliding grooves (3011). Sliding short columns (3031) are slidably arranged on the inner side of the waist-shaped sliding grooves (3011). A guide column (303) is fixedly arranged at one end of the sliding short column (3031). A shaft clamping arc plate (306) is fixedly arranged on the side of the guide column (303) that is close to each other. An anti-slip pad (307) is fixedly arranged on the inner side of the shaft clamping arc plate (306). An external gear ring (201) is fixedly provided on the outer side of the rotating through-shaft platform (2). A drive gear (601) is meshed on the outer side of the external gear ring (201). A servo motor (6) is provided at one end of the drive gear (601). The drive gear (601) is fixedly provided at the drive end of the servo motor (6). The drive gear (601) is rotatably provided on the inner side of the rotating plate frame (7). The servo motor (6) is fixedly provided on one side of the rotating plate frame (7). A locking structure (4) is provided on the outer side of the drive disk (301). The locking structure (4) includes a ratchet ring (401). The ratchet ring (401) is fixedly disposed on the outer side of the drive disk (301). A locking pawl (402) is engaged on the outer side of the ratchet ring (401). A spring end seat (403) is rotatably disposed on the other side of the locking pawl (402). A compound claw spring (404) is fixedly disposed on the other end of the spring end seat (403).

2. The clamping device for machining long shafts as described in claim 1, characterized in that, A return spring (304) is fixedly provided on one side of the guide slide column (303) that is far apart from each other. A fixed guide slide bracket (305) is fixedly provided on the other end of the return spring (304). The fixed guide slide bracket (305) is slidably provided on the outside of the guide slide column (303). The fixed guide slide bracket (305) is detachably provided on the outside of the rotating through-shaft platform (2). A rocker handle (302) is fixedly provided on the end face of the drive disc (301).

3. The clamping device for machining long shafts as described in claim 1, characterized in that, The other end of the compound claw spring (404) is fixedly provided with a fixed connecting crossbar (405), and fixed claw frames (406) are fixedly provided on both sides of the fixed connecting crossbar (405). A receiving connecting frame (408) is fixedly provided at the bottom end of the fixed claw frame (406). The receiving connecting frame (408) is detachably provided on one side of the fixed connecting guide frame (305). Pull claw handles (407) are fixedly provided on both sides of the stop claw (402).

4. The clamping device for machining long shafts as described in claim 1, characterized in that, The rotating plate frame (7) has a rotatable mounting plate (701) on one side, and the rotating motor (5) has a fixed mounting plate (701) on the outside. The mounting plate (701) is detachably mounted on the top of the processing table (1).

5. The clamping device for machining long shafts as described in claim 1, characterized in that, An electric telescopic rod (8) is fixedly installed on one side of the top of the processing table (1). The telescopic end of the electric telescopic rod (8) is provided with a fixed shaft structure (9). The fixed shaft structure (9) is used to position long shaft parts (10).

6. The clamping device for machining long shafts as described in claim 5, characterized in that, The fixed-axis structure (9) includes a transfer plate (901), a return spring (902) is fixedly provided on the end face of the transfer plate (901), a movable seat (903) is fixedly provided on the other end of the return spring (902), four first connecting arms (905) are rotatably provided on the outer side of the movable seat (903), a sliding seat (906) is rotatably provided on the other end of the first connecting arms (905), a second connecting arm (907) is rotatably provided on the outer side of the sliding seat (906), and a clamping plate (908) is rotatably provided on the other end of the second connecting arm (907).

7. A clamping device for machining long shafts as described in claim 6, characterized in that, The sliding seat (906) is slidably disposed on the end face of the transfer tray (901). A rotating arm fixed support plate (909) is symmetrically rotatably disposed on the outer side of the second connecting arm (907). The rotating arm fixed support plate (909) is fixedly disposed on the outer side of the transfer tray (901). A touch guide rod (904) is fixedly disposed on the other end face of the moving seat (903). A seat plate (910) is rotatably disposed on the other end face of the transfer tray (901). The seat plate (910) is slidably disposed on the top of the processing table (1).

8. The clamping device for machining long shafts as described in claim 1, characterized in that, The clamping arc plate (306) and the anti-slip pad (307) are arc-shaped, and the anti-slip pad (307) is made of rubber material.

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