Multi-connecting-shaft clamp for machining controllable-pitch blades

Abstract

The utility model provides a multi-connecting-shaft clamp for machining a controllable-pitch blade, which comprises a base, a first fixing mechanism, a second fixing mechanism, two vertical plates and a lower supporting mechanism. The two vertical plates are symmetrically arranged on the top of the base, and transverse sliding grooves are formed in the vertical plates. According to the multi-connecting-shaft clamp for machining the controllable-pitch blade, the base, the first fixing mechanism, the second fixing mechanism, the two vertical plates and the lower supporting mechanism are matched with one another. According to the utility model, the problem of dead angles caused by single-point or double-point clamping can be effectively solved through a multi-point clamping mode, and after the paddle is fixed, when a position contacted with a certain clamp needs to be maintained, the paddle is supported and limited through the lower supporting mechanism at the bottom, so that the use of personnel is greatly facilitated, and the working efficiency is improved. The contact area of the clamp and the paddle is increased, the rotating deformation of the paddle is controlled, and the clamping stability is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of blade clamping equipment, specifically a multi-shaft clamp for processing pitch-adjustable blades. Background Technology

[0002] The marine controllable pitch propeller hub is a crank-slider mechanism. The linear motion of the piston in the hub cylinder, via a guide frame, drives the crank disc to rotate through the slider in the groove. The crank disc is positioned with the controllable pitch propeller root flange by locating pins and connected by bolts, thereby rotating the controllable pitch propeller blade surface to adjust the propeller pitch angle. For any given pitch angle, the propeller, driven by the main engine at a certain speed, converts the absorbed torque into a force that propels the boat forward or pulls it backward. Controllable pitch propellers are widely used on ship types including tugboats, fishing boats, engineering vessels (cable laying vessels, dredging vessels, etc.), survey vessels, scientific research vessels, oil tankers, ferries, roll-on / roll-off ships, and icebreakers. As a crucial component of marine equipment, the processing progress and quality of the controllable pitch propeller directly affect the progress and safety of launching new ships. Therefore, a good fit is required between the controllable pitch propeller blade root flange end face and the propeller hub.

[0003] However, the structure of the controllable pitch propeller blades is relatively irregular. The blade tip is soft and easily deformed when clamped. When machining the blade root, concentricity and roughness are required. Conventional machining tools cannot clamp it tightly. When using traditional clamps for machining, it is easy to cause large deviations in the size of the machined controllable pitch propeller blades, and there is also a risk of the blades falling off. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a multi-shaft clamp for machining pitch control blades.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a multi-shaft fixture for processing pitch-adjustable blades, comprising a base, a first fixing mechanism, a second fixing mechanism, two vertical plates, and a lower support mechanism. The two vertical plates are symmetrically arranged on the top of the base, and each vertical plate has a transverse sliding groove. The first and second fixing mechanisms are slidably engaged in the two transverse sliding grooves. A blade is disposed between the first and second fixing mechanisms, and a slotted seat is provided on the base. The lower support mechanism is disposed within the slotted seat and contacts the bottom of the blade.

[0008] Preferably, the first fixing mechanism includes a rotating slider, two slide rails, four clamping plates, four telescopic rods, and a drive shaft seat. The rotating slider is slidably engaged with a transverse slide groove, and the two slide rails are transversely arranged on the output end of the rotating slider. The two telescopic rods are slidably engaged with the slide rails, and the drive shaft seat is arranged on the movable end of the telescopic rod. The clamping plates are connected to the output end of the drive shaft seat.

[0009] Preferably, the second fixing mechanism includes a rotating disk, a telescopic joint, a clamp, and a motor slider. The motor slider is slidably fitted on another transverse slide groove, and the telescopic joint is disposed on the output end of the motor slider. The rotating disk is disposed on the telescopic joint, and the clamp is disposed on the rotating disk.

[0010] Preferably, the clamp and the first fixing mechanism are respectively clamped to the front and rear ends of the clamping plate.

[0011] Preferably, the lower support mechanism includes a snap-fit ​​bracket, two electric telescopic rods, two motors, and a telescopic support rod. The two electric telescopic rods are symmetrically arranged on the front and back of the blade, and the motors are mounted on the movable ends of the electric telescopic rods. The telescopic support rods are laterally mounted on the output ends of the motors. The movable ends of the two telescopic support rods are detachably snapped into the front and back of the snap-fit ​​bracket, respectively.

[0012] Preferably, the lower support mechanism further includes two top blocks, four limiting flaps, and a pivot seat. The top blocks are disposed on the movable end of the telescopic support rod, and the pivot seat is disposed on the surface of the snap-fit ​​support. The limiting flaps are hinged to the pivot seat.

[0013] (III) Beneficial Effects

[0014] This utility model provides a multi-shaft fixture for machining pitch-adjustable propeller blades. It has the following advantages:

[0015] 1. This multi-shaft clamp for machining pitch-adjustable blades utilizes a base, a first fixing mechanism, a second fixing mechanism, two vertical plates, and a lower support mechanism working together. This allows the invention to effectively solve the problem of dead angles in single-point or double-point clamping by using a multi-point clamping mode. After the blade is fixed, when maintenance is needed at a specific clamping point, the lower support mechanism at the bottom supports and restricts the blade, greatly facilitating operation, increasing the contact area between the clamp and the blade, controlling the rotational deformation of the blade, and ensuring clamping stability. Attached Figure Description

[0016] Figure 1 This is the first perspective view of the present utility model;

[0017] Figure 2 This is a second perspective view of the present invention;

[0018] Figure 3 This is the third perspective view of the present invention;

[0019] Figure 4 This utility model Figure 1 Enlarged view of point A in the middle.

[0020] In the diagram: 1. Base, 2. Electric telescopic rod, 3. Vertical plate, 4. Horizontal slide groove, 5. Slide rail, 6. Rotating slider, 7. Telescopic rod, 8. First fixing mechanism, 9. Drive shaft seat, 10. Clamping plate, 11. Paddle blade, 12. Lower support mechanism, 13. Rotating disk, 14. Second fixing mechanism, 15. Telescopic joint, 16. Slot seat, 17. Clamp, 18. Motor slider, 19. Top block, 20. Rotary shaft seat, 21. Limiting flap, 22. Telescopic support rod, 23. Motor, 24. Snap-fit ​​support. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] This utility model embodiment provides a multi-shaft fixture for machining pitch-adjustable blades, such as... Figure 1-4 As shown, the system includes a base 1, a first fixing mechanism 8, a second fixing mechanism 14, two upright plates 3, and a lower support mechanism 12. The two upright plates 3 are symmetrically arranged on the top of the base 1, and each upright plate 3 has a transverse sliding groove 4. The first fixing mechanism 8 and the second fixing mechanism 14 are slidably engaged in the two transverse sliding grooves 4. A blade 11 is positioned between the first fixing mechanism 8 and the second fixing mechanism 14, and a slotted seat 16 is provided on the base 1. The lower support mechanism 12 is disposed within the slotted seat 16 and contacts the bottom of the blade 11.

[0023] The first fixed mechanism 8 includes a rotating slider 6, two slide rails 5, four clamping plates 10, four telescopic rods 7, and a drive shaft seat 9. The rotating slider 6 is slidably fitted onto the transverse slide groove 4, and the two slide rails 5 are transversely arranged on the output end of the rotating slider 6. The two telescopic rods 7 are slidably fitted onto the slide rails 5, and the drive shaft seat 9 is arranged on the movable end of the telescopic rod 7. The clamping plates 10 are connected to the output end of the drive shaft seat 9.

[0024] The second fixing mechanism 14 includes a rotating disk 13, a telescopic joint 15, a clamp 17, and a motor slider 18. The motor slider 18 is slidably fitted on another transverse slide groove 4, and the telescopic joint 15 is disposed on the output end of the motor slider 18. The rotating disk 13 is disposed on the telescopic joint 15, and the clamp 17 is disposed on the rotating disk 13.

[0025] The clamp 17 and the first fixing mechanism 8 are respectively clamped to the front and rear ends of the clamping plate 10.

[0026] The lower support mechanism 12 includes a snap-fit ​​support 24, two electric telescopic rods 2, two motors 23, and a telescopic support rod 22. The two electric telescopic rods 2 are symmetrically arranged on the front and back of the blade 11, and the motors 23 are mounted on the movable ends of the electric telescopic rods 2. The telescopic support rod 22 is laterally mounted on the output end of the motors 23. The movable ends of the two telescopic support rods 22 are detachably snap-fitted to the front and back of the snap-fit ​​support 24, respectively.

[0027] The lower support mechanism 12 also includes two top blocks 19, four limiting flaps 21, and a pivot seat 20. The top blocks 19 are mounted on the movable end of the telescopic support rod 22, and the pivot seat 20 is mounted on the surface of the snap-fit ​​support 24. The limiting flaps 21 are hinged to the pivot seat 20.

[0028] Working principle: When in use, the relatively flat tail of the blade 11 is first clamped by the clamp 17. Then, the two drive shaft seats 9 are controlled to support the clamping plate 10 horizontally. Then, the two telescopic rods 7 approach each other on the slide rail 5, thereby clamping the tip of the blade 11.

[0029] When maintenance is required on the surface of the blade 11 clamped at both ends, the electric telescopic rod 2 is raised, allowing the locking support 24 to contact the bottom of the blade 11. Simultaneously, the limit flaps 21 on both sides extend to the surface of the blade 11 to complete the limiting. This facilitates the release of the second fixing mechanism 14 or the first fixing mechanism 8, making it easier for personnel to adjust and maintain the position.

[0030] Since the snap-fit ​​support 24 is located at the lowest point of the blade 11, liquid can easily accumulate on the snap-fit ​​support 24 during maintenance. In order to facilitate cleaning of the snap-fit ​​support 24 and the inner side of the limiting flap 21, the telescopic support rod 22 on one side can be controlled to retract, thereby separating the top block 19 from the limiting flap 21. At this time, the limiting flap 21 automatically tilts up under the action of the rotating shaft seat 20, exposing the snap-fit ​​support 24, which makes it convenient for personnel to clean the inner side of the snap-fit ​​support 24 and the limiting flap 21 from the side at the same time.

[0031] In summary, this multi-axis clamp for processing pitch-adjustable blades utilizes a base 1, a first fixing mechanism 8, a second fixing mechanism 14, two vertical plates 3, and a lower support mechanism 12 in a coordinated manner. This allows the invention to effectively solve the problem of dead angles in single-point or double-point clamping through a multi-point clamping mode. After the blade is fixed, when maintenance is needed at a specific clamping point, the lower support mechanism 12 at the bottom supports and restricts the blade 11, greatly facilitating its use, increasing the contact area between the clamp and the blade, controlling the rotational deformation of the blade, and ensuring clamping stability.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A multi-shaft fixture for machining pitch-adjustable blades, characterized in that: The device includes a base (1), a first fixing mechanism (8), a second fixing mechanism (14), two upright plates (3), and a lower support mechanism (12). The two upright plates (3) are symmetrically arranged on the top of the base (1). The upright plates (3) are provided with transverse sliding grooves (4). The first fixing mechanism (8) and the second fixing mechanism (14) are slidably engaged on the two transverse sliding grooves (4). A blade (11) is provided between the first fixing mechanism (8) and the second fixing mechanism (14). A slot seat (16) is provided on the base (1). The lower support mechanism (12) is located in the slot seat (16) and is in contact with the bottom of the blade (11).

2. A multi-shaft fixture for machining pitch-adjustable blades according to claim 1, characterized in that: The first fixing mechanism (8) includes a rotating slider (6), two slide rails (5), four clamping plates (10), four telescopic rods (7), and a drive shaft seat (9). The rotating slider (6) is slidably fitted on the transverse slide groove (4). The two slide rails (5) are transversely arranged on the output end of the rotating slider (6). The two telescopic rods (7) are slidably fitted on the slide rails (5). The drive shaft seat (9) is arranged on the movable end of the telescopic rods (7). The clamping plates (10) are connected to the output end of the drive shaft seat (9).

3. A multi-shaft fixture for machining pitch-adjustable blades according to claim 1, characterized in that: The second fixing mechanism (14) includes a rotating disk (13), a telescopic joint (15), a clamp (17), and a motor slider (18). The motor slider (18) is slidably fitted on another transverse slide groove (4). The telescopic joint (15) is set on the output end of the motor slider (18). The rotating disk (13) is set on the telescopic joint (15), and the clamp (17) is set on the rotating disk (13).

4. A multi-shaft fixture for machining pitch-adjustable blades according to claim 1, characterized in that: The clamp (17) and the first fixing mechanism (8) are respectively clamped to the front and rear ends of the clamping plate (10).

5. A multi-shaft fixture for machining pitch-adjustable blades according to claim 1, characterized in that: The lower support mechanism (12) includes a snap-fit ​​support (24), two electric telescopic rods (2), two motors (23), and a telescopic support rod (22). The two electric telescopic rods (2) are symmetrically arranged on the front and back of the blade (11). The motor (23) is arranged on the movable end of the electric telescopic rod (2). The telescopic support rod (22) is arranged laterally on the output end of the motor (23). The movable ends of the two telescopic support rods (22) are detachably snapped into the front and back of the snap-fit ​​support (24), respectively.

6. A multi-shaft fixture for machining pitch-adjustable blades according to claim 1, characterized in that: The lower support mechanism (12) also includes two top blocks (19), four limiting flaps (21) and a rotating shaft seat (20). The top blocks (19) are set on the movable end of the telescopic support rod (22), the rotating shaft seat (20) is set on the surface of the snap-fit ​​support (24), and the limiting flaps (21) are hinged to the rotating shaft seat (20).

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