Vertical machining center for drive shafts

Abstract

This utility model discloses a vertical machining center for drive shafts, relating to the field of marine drive shaft machining technology. The utility model includes a vertical machining center body, with a positioning and clamping mechanism internally. A flipping and loading mechanism is located on one side of the vertical machining center body, and a fixed clamping mechanism is located at the supporting end of the flipping and loading mechanism. A stabilizing mechanism is located at the top of the vertical machining center body. This utility model clamps and fixes the marine drive shaft using the fixed clamping mechanism. The flipping and loading mechanism drives the fixed clamping mechanism to flip synchronously, making one end of the marine drive shaft within the fixed clamping mechanism coaxial with the positioning and clamping mechanism. This design solves the problems of traditional heavy-duty overhead crane hoisting, which requires repeated manual adjustment of the long shaft angle and is prone to interference with the machine tool column. It eliminates the time-consuming and labor-intensive process of cumbersome flipping and the risk of workpiece collision, significantly improving clamping efficiency and safety, and is suitable for machining marine drive shafts.

Description

Technical Field

[0001] This utility model belongs to the field of marine drive shaft processing technology, and more specifically, it relates to a vertical machining center for drive shafts. Background Technology

[0002] Vertical machining centers for ship drive shafts are key equipment used for long-shaft ship drive shafts (such as intermediate shafts and stern shafts). They adopt a vertical spindle structure, with workpieces typically clamped vertically. Utilizing a large-stroke Z-axis and a powerful spindle, combined with a high-rigidity bed and high-precision guideways, they enable powerful cutting and precision machining of features such as the outer diameter, end face, keyway, and flange holes of heavy-duty drive shafts. This effectively overcomes the gravity deformation problems that may be caused by horizontal clamping, ensuring the coaxiality, straightness, and dimensional accuracy requirements of the drive shaft.

[0003] According to Chinese Patent Publication No. CN213379481U, a vertical machining center for machining transmission shafts is disclosed. The transmission shaft is fixed by the cooperation of an upper chuck and a lower chuck. Then, the lower chuck is rotated to adjust the machining position of the transmission shaft so that it is aligned with the milling cutter. Finally, the milling cutter is used to mill the shaft. After machining one position, the lower chuck can be rotated to easily adjust to other machining positions for machining.

[0004] However, when machining ship drive shafts using the aforementioned devices and existing vertical machining centers, the ship drive shafts need to be placed inside the vertical machining center. Since ship drive shafts are usually quite long, traditional clamping relies on heavy-duty cranes for hoisting, requiring the horizontally placed ship drive shafts to be clumsily flipped to a vertical position. This process not only requires repeated adjustments to the angle of the ship drive shafts to avoid interference with the machine tool column, consuming a lot of manpower and time, but also carries a very high risk of workpiece collision. Utility Model Content

[0005] In view of the problem that when placing a ship's drive shaft in a vertical machining center, the horizontally placed shaft system needs to be clumsily flipped to a vertical position. This process not only requires repeated adjustment of the shaft angle to avoid interference with the machine tool column, but also consumes a lot of manpower and time. This utility model proposes a vertical machining center for drive shafts to overcome the above-mentioned technical problems existing in the existing related technologies.

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

[0007] This utility model is a vertical machining center for a transmission shaft, including a vertical machining center body, a positioning and clamping mechanism inside the vertical machining center body, a flipping and feeding mechanism on one side of the vertical machining center body, a fixing and clamping mechanism at the supporting end of the flipping and feeding mechanism, and a stabilizing mechanism at the top of the vertical machining center body.

[0008] The fixed clamping mechanism is used to clamp and fix the ship's drive shaft. The flipping and loading mechanism drives the ship's drive shaft to rotate through the fixed clamping mechanism, so that the bottom end of the ship's drive shaft rotates into the interior of the positioning clamping mechanism.

[0009] Furthermore, the positioning and clamping mechanism includes a positioning disk, which is rotatably connected inside the body of the vertical machining center. A bidirectional screw is rotatably connected inside the positioning disk, and a positioning plate is threadedly connected to the surface of the bidirectional screw. The positioning plate is slidably connected to the surface of the positioning disk. A motor is fixedly connected to the bottom of the body of the vertical machining center, and the output shaft of the motor is fixedly connected to the positioning disk.

[0010] Furthermore, the flipping and feeding mechanism includes a flipping plate, one end of which is rotatably connected to the feeding end of the vertical machining center body, and hydraulic rods are rotatably connected to both sides of the vertical machining center body, with the output ends of the hydraulic rods rotatably connected to both sides of the flipping plate.

[0011] Furthermore, a motor is fixedly connected to one end of the flip plate, and a lead screw is fixedly connected to the output shaft of the motor. The lead screw is rotatably connected inside the flip plate, and a lifting plate is threadedly connected to the surface of the lead screw. The lifting plate is slidably connected inside the flip plate.

[0012] Furthermore, the fixed clamping mechanism includes a second motor, which is fixedly installed on the side of the lifting plate. The output shaft of the second motor is fixedly connected to a second bidirectional screw, which is rotatably connected inside the lifting plate. A clamping plate is threadedly connected to the surface of the second bidirectional screw, and the clamping plate is slidably connected inside the lifting plate.

[0013] Furthermore, each of the clamps is rotatably connected to several guide wheels, and the surface of each guide wheel is provided with anti-slip grooves.

[0014] Furthermore, the stabilizing mechanism includes a support frame, which is fixedly installed on the top of the vertical machining center body. A cylinder is fixedly connected to the top of the support frame, and a main board is fixedly connected to the output shaft of the cylinder. A stabilizing plate is rotatably connected to the surface of the main board. A limit plate is fixedly connected to one side of the support frame, and a hydraulic cylinder is fixedly installed on the surface of the limit plate. A buffer plate is fixedly connected to the output shaft of the hydraulic cylinder.

[0015] This utility model has the following beneficial effects:

[0016] 1. This utility model uses a fixed clamping mechanism to clamp and fix the ship drive shaft. The rotating end of the flipping feeding mechanism drives its supporting end to rotate, causing the supporting end to drive the fixed clamping mechanism to rotate synchronously. This makes one end of the ship drive shaft in the fixed clamping mechanism coaxial with the positioning clamping mechanism, which facilitates the positioning clamping mechanism and the stabilizing mechanism to clamp and stabilize the ship drive shaft. This design solves the problems of repeated manual adjustment of the long shaft angle and easy interference with the machine tool column when using heavy-duty cranes for hoisting. It eliminates the time-consuming and labor-intensive process and the risk of workpiece collision caused by clumsy flipping, significantly improving clamping efficiency and safety. It is suitable for the processing of ship drive shafts.

[0017] 2. After the ship's drive shaft is fixed by the positioning plate and the stabilizing plate, the clamping plate is released, and the lead screw drives the lifting plate to slide inside the flipping plate, changing the position of the clamping plate and moving it to the center position of the ship's drive shaft, which facilitates the stabilization of the center position of the ship's drive shaft. This design realizes the dynamic adjustment of the clamping point and effectively improves the stability and positioning accuracy of clamping long shaft workpieces.

[0018] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the utility model embodiments, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the bottom structure of this utility model;

[0022] Figure 3 This is a cross-sectional structural diagram of the present invention;

[0023] Figure 4 This is a schematic diagram of the fixing and clamping mechanism of this utility model;

[0024] Figure 5 This is a schematic diagram of the positioning and clamping mechanism of this utility model;

[0025] Figure 6 For the present utility model Figure 3 Enlarged structural diagram at point A in the middle.

[0026] The attached diagram lists the components represented by each number as follows:

[0027] 1. Vertical machining center body; 2. Positioning and clamping mechanism; 201. Positioning plate; 202. Bidirectional screw I; 203. Positioning plate; 204. Motor III; 3. Tilting and loading mechanism; 301. Tilting plate; 302. Hydraulic rod; 303. Motor I; 304. Lead screw I; 305. Lifting plate; 4. Fixed clamping mechanism; 401. Motor II; 402. Bidirectional screw II; 403. Clamping plate; 404. Guide wheel; 405. Anti-slip groove; 5. Stabilizing mechanism; 501. Support frame; 502. Cylinder; 503. Main board; 504. Stabilizing plate; 505. Limiting plate; 506. Hydraulic cylinder; 507. Buffer plate. Detailed Implementation

[0028] The technical solutions of the utility model embodiments will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the utility model, and not all embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the utility model.

[0029] In the description of this utility model, it should be understood that the terms "opening", "upper", "lower", "top", "middle", "inner", etc., which indicate orientation or positional relationship, are only for the convenience of describing the 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. Therefore, they should not be construed as limitations on the utility model.

[0030] Please see Figures 1-6 As shown, this utility model is a vertical machining center for transmission shafts, including a vertical machining center body 1, a positioning and clamping mechanism 2 is provided inside the vertical machining center body 1, a flipping and feeding mechanism 3 is provided on one side of the vertical machining center body 1, a fixing and clamping mechanism 4 is provided at the support end of the flipping and feeding mechanism 3, and a stabilizing mechanism 5 is provided at the top of the vertical machining center body 1.

[0031] The fixed clamping mechanism 4 is used to clamp and fix the ship's drive shaft. The flipping and loading mechanism 3 drives the ship's drive shaft to rotate through the fixed clamping mechanism 4, so that the bottom end of the ship's drive shaft rotates into the positioning clamping mechanism 2.

[0032] By placing the ship drive shaft on the clamping end of the fixed clamping mechanism 4, the clamping end is driven to clamp and fix the ship drive shaft. The flipping end of the flipping feeding mechanism 3 rotates, driving its supporting end to flip, so that its supporting end drives the fixed clamping mechanism 4 to flip synchronously. This makes the fixed clamping mechanism 4 drive the ship drive shaft to be coaxial with the positioning clamping mechanism 2. Then, the positioning clamping mechanism 2 is activated to clamp and fix one end of the ship drive shaft. At the same time, the stabilizing mechanism 5 fixes the other end of the ship drive shaft. The positioning clamping mechanism 2 is activated to drive the ship drive shaft to rotate, so that the ship drive shaft is processed inside the body 1 of the vertical machining center.

[0033] The ship drive shaft is clamped and fixed by the fixed clamping mechanism 4. The rotating end of the flipping feeding mechanism 3 drives its supporting end to rotate, so that the supporting end drives the fixed clamping mechanism 4 to rotate synchronously. This makes one end of the ship drive shaft in the fixed clamping mechanism 4 coaxial with the positioning clamping mechanism 2, which facilitates the positioning clamping mechanism 2 and the stabilizing mechanism 5 to clamp and stabilize the ship drive shaft. This design solves the problems of repeated manual adjustment of the long shaft angle and easy interference with the machine tool column when using heavy cranes for hoisting. It eliminates the time and effort consumption and workpiece collision risk caused by clumsy flipping, significantly improves clamping efficiency and safety, and is suitable for the processing of ship drive shafts.

[0034] In one embodiment, the positioning and clamping mechanism 2 includes a positioning disk 201, which is rotatably connected to the interior of the vertical machining center body 1. A bidirectional screw 202 is rotatably connected inside the positioning disk 201. A positioning plate 203 is threadedly connected to the surface of the bidirectional screw 202. The positioning plate 203 is slidably connected to the surface of the positioning disk 201. A motor 204 is fixedly connected to the bottom of the vertical machining center body 1. The output shaft of the motor 204 is fixedly connected to the positioning disk 201.

[0035] When the ship's drive shaft is placed on the surface of the positioning plate 201, the double-acting screw 202 is rotated, causing the double-acting screw 202 to drive the positioning plate 203 to contact the surface of the ship's drive shaft, clamping and fixing one end of the ship's drive shaft. The motor 204 is started to drive the positioning plate 201 to rotate, so that the positioning plate 201 drives the ship's drive shaft to rotate.

[0036] In one embodiment, the aforementioned tilting and feeding mechanism 3 includes a tilting plate 301. One end of the tilting plate 301 is rotatably connected to the feeding end of the vertical machining center body 1. Hydraulic rods 302 are rotatably connected to both sides of the vertical machining center body 1. The output ends of the hydraulic rods 302 are rotatably connected to both sides of the tilting plate 301. A motor 303 is fixedly connected to one end of the tilting plate 301. A lead screw 304 is fixedly connected to the output shaft of the motor 303. The lead screw 304 is rotatably connected inside the tilting plate 301. A lifting plate 305 is threadedly connected to the surface of the lead screw 304. The lifting plate 305 is slidably connected inside the tilting plate 301.

[0037] Start the hydraulic rod 302, so that the output end of the hydraulic rod 302 drives the tilting plate 301 to tilt inside the loading end of the vertical machining center body 1. The tilting plate 301 drives the ship drive shaft to the inside of the vertical machining center body 1. Start the motor 303 to drive the lead screw 304 to rotate. The lead screw 304 drives the lifting plate 305 to slide inside the tilting plate 301, so that the lifting plate 305 can adapt to the length of the ship drive shaft.

[0038] In one embodiment, the fixed clamping mechanism 4 includes a second motor 401, which is fixedly installed on the side of the lifting plate 305. The output shaft of the second motor 401 is fixedly connected to a second bidirectional screw 402, which is rotatably connected inside the lifting plate 305. A clamping plate 403 is threadedly connected to the surface of the second bidirectional screw 402, and the clamping plate 403 is slidably connected inside the lifting plate 305. Several guide wheels 404 are rotatably connected inside the clamping plate 403, and anti-slip grooves 405 are provided on the surface of the guide wheels 404.

[0039] The ship's drive shaft is placed on the surface of the lifting plate 305, aligning one end of the drive shaft with one end of the lifting plate 305. The second drive motor 401 rotates the second double-screw 402, which in turn drives the clamping plate 403 to move. This causes the clamping plate 403 to move several guide wheels 404, which then contact both sides of the ship's drive shaft, clamping and fixing it in place. When the lifting plate 305 drives the ship's drive shaft to be coaxial with the positioning plate 201, the positioning plate 201 fixes one end of the drive shaft. At this point, the clamping plate 403 is released, allowing the first screw 304 to... The movable lifting plate 305 slides inside the tilting plate 301, changing the position of the clamping plate 403 and moving it to the center position of the ship's drive shaft. This facilitates the stabilization of the ship's drive shaft. At the same time, when the positioning plate 201 drives the ship's drive shaft to rotate, the ship's drive shaft drives several guide wheels 404 inside the clamping plate 403 to rotate synchronously, ensuring that it does not affect the normal processing of the ship's drive shaft. The anti-slip grooves 405 on the surface of the guide wheels 404 are used to prevent the ship's drive shaft from slipping during the tilting process, thus facilitating the stabilization of the ship's drive shaft.

[0040] In one embodiment, the stabilizing mechanism 5 includes a support frame 501, which is fixedly installed on the top of the vertical machining center body 1. A cylinder 502 is fixedly connected to the top of the support frame 501. A main board 503 is fixedly connected to the output shaft of the cylinder 502. A stabilizing plate 504 is rotatably connected to the surface of the main board 503. A limit plate 505 is fixedly connected to one side of the support frame 501. A hydraulic cylinder 506 is fixedly installed on the surface of the limit plate. A buffer plate 507 is fixedly connected to the output shaft of the hydraulic cylinder.

[0041] After one end of the ship drive shaft is fixed by the positioning plate 201, the drive cylinder 502 drives the main plate 503 to move, so that the main plate 503 drives the stabilizing plate 504 to contact the other end of the ship drive shaft and clamp the ship drive shaft. When the positioning plate 201 drives the ship drive shaft to rotate, the other end of the ship drive shaft also rotates on the surface of the main plate 503 along with the stabilizing plate 504, thus stabilizing the ship drive shaft. When the output end of the hydraulic rod 302 drives the flipping plate 301 to flip inside the loading end of the vertical machining center body 1, the ship drive shaft will tilt into the vertical machining center body 1 under the drive of the flipping plate 301. The hydraulic cylinder 506 drives the buffer plate 507 to contact the surface of the ship drive shaft and stabilize the ship drive shaft. After the ship drive shaft is fixed, the hydraulic cylinder 506 drives the buffer plate 507 to retract.

[0042] Through the above technical solution, 1. By placing the ship's drive shaft on the surface of the lifting plate 305, aligning one end of the ship's drive shaft with one end of the lifting plate 305, the second drive motor 401 causes the second bidirectional screw 402 to rotate, which in turn drives the clamping plate 403 to move, causing the clamping plate 403 to drive several guide wheels 404 to contact both sides of the ship's drive shaft, thus clamping and fixing the ship's drive shaft. The hydraulic rod 302 is activated, causing its output end to drive the tilting plate 301 to tilt inside the loading end of the vertical machining center body 1, so that the tilting plate 301 drives the ship's drive shaft to the interior of the vertical machining center body 1. When the ship's drive shaft is placed on the surface of the positioning plate 201, the first bidirectional screw 202 is rotated, causing it to drive the positioning plate 203 to contact the surface of the ship's drive shaft, clamping and fixing one end of the ship's drive shaft. The cylinder 502 is then driven to move the main plate 503, causing the main plate 503 to drive the stabilizing plate 504 to contact the ship's drive shaft. At the other end of the drive shaft, the ship drive shaft is clamped. When the positioning plate 201 drives the ship drive shaft to rotate, the other end of the ship drive shaft also rotates on the surface of the main plate 503 along with the stabilizing plate 504, thus stabilizing the ship drive shaft. When the output end of the hydraulic rod 302 drives the flipping plate 301 to flip inside the loading end of the vertical machining center body 1, the ship drive shaft will tilt into the vertical machining center body 1 under the drive of the flipping plate 301. The hydraulic cylinder 506 drives the buffer plate 507 to contact the surface of the ship drive shaft, stabilizing the ship drive shaft. After the ship drive shaft is fixed, the hydraulic cylinder 506 drives the buffer plate 507 to retract. When the positioning plate 201 drives the ship drive shaft to rotate, the ship drive shaft drives several guide wheels 404 inside the clamping plate 403 to rotate synchronously, so that it can be processed inside the vertical machining center body 1. The anti-slip grooves 405 opened on the surface of the guide wheels 404 are used to prevent the ship drive shaft from slipping during the flipping process, which facilitates the stabilization of the ship drive shaft.

[0043] 2. After the ship's drive shaft is fixed by the positioning plate 201 and the stabilizing plate 504, the clamping plate 403 is released, and the lead screw 304 drives the lifting plate 305 to slide inside the flipping plate 301, changing the position of the clamping plate 403 and moving it to the center position of the ship's drive shaft, which facilitates the stabilization of the center position of the ship's drive shaft. This design realizes the dynamic adjustment of the clamping point, effectively improving the stability and positioning accuracy of clamping long shaft workpieces.

[0044] 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 utility model. 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.

[0045] The preferred embodiments of the utility model disclosed above are merely illustrative of the utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the utility model, thereby enabling those skilled in the art to better understand and utilize it. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A vertical machining center of a transmission shaft, comprising a vertical machining center body (1), characterized in that, The vertical machining center body (1) is provided with a positioning clamping mechanism (2) inside, a flipping feeding mechanism (3) is provided on one side of the vertical machining center body (1), a fixed clamping mechanism (4) is provided at the support end of the flipping feeding mechanism (3), and a stabilizing mechanism (5) is provided at the top of the vertical machining center body (1). The fixed clamping mechanism (4) is used to clamp and fix the ship drive shaft. The flipping loading mechanism (3) drives the ship drive shaft to rotate through the fixed clamping mechanism (4) so ​​that the bottom end of the ship drive shaft rotates into the interior of the positioning clamping mechanism (2).

2. The vertical machining center for the transmission shaft according to claim 1, characterized in that, The positioning and clamping mechanism (2) includes a positioning disk (201), which is rotatably connected inside the vertical machining center body (1). A bidirectional screw (202) is rotatably connected inside the positioning disk (201). A positioning plate (203) is threadedly connected to the surface of the bidirectional screw (202). The positioning plate (203) is slidably connected to the surface of the positioning disk (201). A motor (204) is fixedly connected to the bottom of the vertical machining center body (1). The output shaft of the motor (204) is fixedly connected to the positioning disk (201).

3. The vertical machining center for the transmission shaft according to claim 1, characterized in that, The flipping feeding mechanism (3) includes a flipping plate (301), one end of which is rotatably connected to the feeding end of the vertical machining center body (1). Hydraulic rods (302) are rotatably connected to both sides of the vertical machining center body (1), and the output end of the hydraulic rods (302) is rotatably connected to both sides of the flipping plate (301).

4. The vertical machining center for the transmission shaft according to claim 3, characterized in that, One end of the flip plate (301) is fixedly connected to a motor (303), the output shaft of the motor (303) is fixedly connected to a lead screw (304), the lead screw (304) is rotatably connected inside the flip plate (301), and a lifting plate (305) is threadedly connected to the surface of the lead screw (304), the lifting plate (305) is slidably connected inside the flip plate (301).

5. The vertical machining center for the transmission shaft according to claim 4, characterized in that, The fixed clamping mechanism (4) includes a second motor (401), which is fixedly installed on the side of the lifting plate (305). The output shaft of the second motor (401) is fixedly connected to a second bidirectional screw (402). The second bidirectional screw (402) is rotatably connected inside the lifting plate (305). A clamping plate (403) is threadedly connected to the surface of the second bidirectional screw (402). The clamping plate (403) is slidably connected inside the lifting plate (305).

6. The vertical machining center for the transmission shaft according to claim 5, characterized in that, The clamp (403) is rotatably connected to several guide wheels (404), and the surface of the guide wheels (404) is provided with anti-slip grooves (405).

7. The vertical machining center for the transmission shaft according to claim 1, characterized in that, The stabilizing mechanism (5) includes a support frame (501), which is fixedly installed on the top of the vertical machining center body (1). A cylinder (502) is fixedly connected to the top of the support frame (501). A main board (503) is fixedly connected to the output shaft of the cylinder (502). A stabilizing plate (504) is rotatably connected to the surface of the main board (503). A limiting plate (505) is fixedly connected to one side of the support frame (501). A hydraulic cylinder (506) is fixedly installed on the surface of the limiting plate (505). A buffer plate (507) is fixedly connected to the output shaft of the hydraulic cylinder (506).

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