Positioning tool for machining marine propeller shaft

Abstract

The utility model relates to the technical field of positioning tools, in particular to a positioning tool for machining a marine propeller shaft, which comprises a base, a mounting frame is mounted at the top of the base, a connecting sleeve is rotatably connected to the side surface of the mounting frame, two ends of the connecting sleeve extend to two sides of the mounting frame, two L-shaped mounting plates are symmetrically mounted at one end of the connecting sleeve, and the L-shaped mounting plates are mounted on the mounting frame. L-shaped mounting plates are symmetrically arranged on the connecting sleeve, one end of each L-shaped mounting plate extends to one side of the connecting sleeve, two clamping blocks are symmetrically arranged between the two L-shaped mounting plates, opening grooves are formed in the close faces of the two clamping blocks, second fixing blocks are mounted on the two sides of each clamping block, and the two second fixing blocks located on the same side are connected through a bidirectional lead screw. According to the marine propeller shaft clamping device, the two bidirectional lead screws can be synchronously driven to rotate through the double-shaft motor, then the two clamping blocks can be synchronously driven to move relatively, the marine propeller shaft is clamped and fixed, the marine propeller shaft can be synchronously positioned under the action of the opening groove, and the using effect is improved.

Description

Technical Field

[0001] This utility model relates to the field of positioning tooling technology, and in particular to a positioning tooling for machining marine propeller shafts. Background Technology

[0002] A marine propeller shaft is the shaft in the shafting system that mounts the propeller; it is also called the stern shaft or propeller shaft. It is the transmission component connecting the propeller blades and the engine, transmitting power from the engine to the propeller to propel the ship forward. Marine propeller shafts require positioning fixtures for fixation during machining.

[0003] Existing positioning fixtures typically use clamps to fix marine propeller shafts onto processing equipment. However, existing positioning fixtures require clamping and fixing the propeller shaft before positioning it using a positioning mechanism, which is cumbersome, inefficient, and requires manual placement of the propeller shaft onto the fixture or external hoisting, making loading difficult. Therefore, we propose a positioning fixture for processing marine propeller shafts. Utility Model Content

[0004] The purpose of this utility model is to solve the above-mentioned shortcomings in the prior art and to propose a positioning fixture for machining marine propeller shafts.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a positioning fixture for machining marine propeller shafts is designed, including a base, a mounting bracket is installed on the top of the base, a connecting sleeve is rotatably connected to the side of the mounting bracket, and both ends of the connecting sleeve extend to both sides of the mounting bracket.

[0006] Two L-shaped mounting plates are symmetrically installed at one end of the connecting sleeve, and one end of each L-shaped mounting plate extends to one side of the connecting sleeve. Two clamping blocks are symmetrically arranged between the two L-shaped mounting plates, and opening slots are opened on the adjacent surfaces of the two clamping blocks.

[0007] Each clamping block has a second fixing block installed on both sides. The two second fixing blocks on the same side are connected by a bidirectional screw rod. One of the L-shaped mounting plates has a first fixing block extending from both ends. One end of the bidirectional screw rod is rotatably connected to the side of the corresponding first fixing block.

[0008] A dual-axis motor is installed on the top of another first fixing block. Both ends of the dual-axis motor are rotatably connected to the sides of the second mounting plates fixed on both sides of the first fixing block. Both ends of the dual-axis motor are connected to the bidirectional lead screw through a gearbox. The gearbox is fixed on the side of the second mounting plate.

[0009] The base is equipped with a support platform at the top. The bottom of the support platform is fixed to the top of the base by a hydraulic rod. Several pairs of support frames are symmetrically installed on the top of the support platform, and each pair of support frames is rotatably connected to a conveyor roller.

[0010] One end of each conveyor roller on one side is connected to a first sprocket, and a second sprocket is rotatably connected to the side of one of the support frames via a fixed frame. The first sprocket and the second sprocket are connected by a chain, and the second sprocket is connected to the output shaft of the second drive motor, which is fixed to the side of the fixed frame.

[0011] Preferably, a first mounting plate is mounted on the top of the mounting bracket, a gear is rotatably connected to one side of the first mounting plate, and one end of the gear is connected to a first drive motor. The first drive motor is fixed on the side of the first mounting plate, and a gear ring is mounted on the side of the connecting sleeve away from the L-shaped mounting plate, and the gear ring meshes with the gear.

[0012] Preferably, a conductive slip ring is installed on the side of the connecting sleeve, the stator of the conductive slip ring is fixed on the side of the mounting bracket, and the rotor of the conductive slip ring is fixed on the connecting sleeve, and the rotor of the conductive slip ring is connected to the dual-shaft motor through a wire.

[0013] Preferably, the opening slot is configured as a "V" shaped structure.

[0014] Preferably, a limit rod is vertically installed on the top of each first fixing block, and the top of the limit rod slides through two second fixing blocks located on the same side.

[0015] Preferably, each conveyor roller is inclined, and a V-shaped groove is formed between the two conveyor rollers on both sides, with the marine propeller shaft located in the V-shaped groove.

[0016] Preferably, connecting blocks are symmetrically installed on both sides of the support platform, and several guide rods are vertically installed on the top of the base, with the top of each guide rod sliding through the corresponding connecting block.

[0017] Preferably, a control cabinet is installed on one side of the mounting bracket, and the controller inside the control cabinet is connected to the stator of the first drive motor, the conductive slip ring, the second drive motor, and the hydraulic rod via wires.

[0018] The design scheme proposed in this utility model has the following beneficial effects in application:

[0019] 1. The dual-axis motor can synchronously drive two bidirectional lead screws to rotate, which in turn can synchronously drive two clamping blocks to move relative to each other, clamping and fixing the marine propeller shaft. Furthermore, the open slot can synchronously position the marine propeller shaft, improving the performance.

[0020] 2. The height of the support platform can be adjusted by the hydraulic rod, and the second drive motor can drive the conveyor roller to rotate under the action of the first and second sprockets, moving the marine propeller shaft between the two clamping blocks, which facilitates material loading and improves the use effect. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 ;

[0022] Figure 2 This is a schematic diagram of the structure of the present invention. Figure 2 ;

[0023] Figure 3 This is a schematic diagram of the connecting ring and clamping block structure of this utility model;

[0024] Figure 4 This is the main structural view of the present invention.

[0025] In the diagram: 1. Base; 2. Mounting bracket; 3. Conductive slip ring; 4. First drive motor; 5. First mounting plate; 6. Dual-axis motor; 7. Second mounting plate; 8. L-shaped mounting plate; 9. Clamping block; 10. Conveying roller; 11. Support frame; 12. First sprocket; 13. Second drive motor; 14. Second sprocket; 15. Connecting block; 16. Guide rod; 17. Hydraulic rod; 18. Support platform; 19. First fixing block; 20. Connecting sleeve; 21. Gear ring; 22. Gear; 23. Gearbox; 24. Fixing bracket; 25. Bidirectional lead screw; 26. Second fixing block; 27. Control cabinet; 28. Opening slot; 29. ​​Limiting rod. 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 of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0027] Reference Figures 1-4 A positioning fixture for machining marine propeller shafts includes a base 1, a mounting bracket 2 mounted on the top of the base 1, and a control cabinet 27 mounted on one side of the mounting bracket 2. The control cabinet 27 contains a controller, which is one of a control motherboard, a host computer, or a PLC logic controller.

[0028] like Figure 1 and Figure 3As shown, a connecting sleeve 20 is rotatably connected to the side of the mounting frame 2, and both ends of the connecting sleeve 20 extend to both sides of the mounting frame 2. Two L-shaped mounting plates 8 are symmetrically installed at one end of the connecting sleeve 20, and one end of each L-shaped mounting plate 8 extends to one side of the connecting sleeve 20. Two clamping blocks 9 are symmetrically arranged between the two L-shaped mounting plates 8. Opening slots 28 are opened on the close surfaces of the two clamping blocks 9. In actual use, the marine propeller shaft can be clamped and fixed by the two clamping blocks 9.

[0029] like Figure 1 and Figure 3 As shown, each clamping block 9 has a second fixing block 26 installed on both sides. The two second fixing blocks 26 located on the same side are connected by a bidirectional lead screw 25. One of the L-shaped mounting plates 8 has a first fixing block 19 extending from both ends. One end of the bidirectional lead screw 25 is rotatably connected to the side of the corresponding first fixing block 19. The top of the other first fixing block 19 is equipped with a dual-axis motor 6, which is a brake motor. Both ends of the dual-axis motor 6 are rotatably connected to the side of the second mounting plate 7 fixed on both sides of the first fixing block 19. Both ends of the dual-axis motor 6 are connected to the bidirectional lead screw 25 through a gearbox 23. The gearbox 23 is fixed to the side of the second mounting plate 7. The dual-axis motor 6 is connected to the controller through wires. In actual use, the dual-axis motor 6 can synchronously drive the two bidirectional lead screws 25 to rotate, thereby controlling the two clamping blocks 9 to move synchronously relative to each other, clamping and fixing the marine propeller shaft. At the same time as clamping and fixing, the marine propeller shaft can also be positioned.

[0030] It should be noted that, as Figure 1 As shown, the opening slot 28 is set as a "V" shaped structure. During use, when the two clamping blocks 9 move relative to each other, the inclined surface of the opening slot 28 can contact the surface of the marine propeller shaft to clamp and fix the marine propeller shaft.

[0031] like Figure 1 and Figure 2 As shown, a first mounting plate 5 is mounted on the top of the mounting bracket 2. A gear 22 is rotatably connected to one side of the first mounting plate 5, and one end of the gear 22 is connected to a first drive motor 4. The first drive motor 4 is fixed on the side of the first mounting plate 5 and is connected to a controller via a wire. A gear ring 21 is mounted on the side of the connecting sleeve 20 away from the L-shaped mounting plate 8. The gear ring 21 meshes with the gear 22. During use, the first drive motor 4 can drive the gear 22 to rotate, and then the connecting sleeve 20 can rotate under the cooperation of the gear 22 and the gear ring 21. In this way, the marine propeller shaft will rotate, thus allowing the surface of the marine propeller shaft to be machined.

[0032] It should be noted that, as Figure 3As shown, a conductive slip ring 3 is installed on the side of the connecting sleeve 20. The stator of the conductive slip ring 3 is fixed on the side of the mounting bracket 2, and the rotor of the conductive slip ring 3 is fixed on the connecting sleeve 20. The rotor of the conductive slip ring 3 is connected to the dual-axis motor 6 through a wire, and the stator of the conductive slip ring 3 is connected to the controller through a wire. In this way, when the connecting sleeve 20 rotates, the dual-axis motor 6 can still be powered normally under the action of the conductive slip ring 3, so that the dual-axis motor 6 can maintain normal operation.

[0033] like Figure 1 and Figure 2 As shown, the top of the base 1 is provided with a support platform 18. The bottom of the support platform 18 is fixed to the top of the base 1 by a hydraulic rod 17. The hydraulic rod 17 is connected to the controller by a wire. Several pairs of support frames 11 are symmetrically installed on the top of the support platform 18. Each pair of support frames 11 is rotatably connected to a conveyor roller 10. In actual use, the support platform 18 can be pushed up and down by the hydraulic rod 17. After the marine propeller shaft is placed on the conveyor roller 10, the marine propeller shaft can be lifted between the two clamping blocks 9 by controlling the support platform 18 to rise, which is convenient for loading.

[0034] like Figure 1 and Figure 4 As shown, one end of each conveyor roller 10 is connected to a first sprocket 12. A second sprocket 14 is rotatably connected to the side of one of the support frames 11 via a fixing frame 24. The first sprocket 12 and the second sprocket 14 are connected by a chain, and the second sprocket 14 is connected to the output shaft of the second drive motor 13. The second drive motor 13 is fixed on the side of the fixing frame 24 and is connected to the controller via a wire. In actual use, when the marine propeller shaft is lifted between the two clamping blocks 9, the operator can control the second drive motor 13 to work through the controller. Under the action of the first sprocket 12 and the second sprocket 14, the conveyor roller 10 can be rotated, pushing one end of the marine propeller shaft placed on the conveyor roller 10 between the two clamping blocks 9 for easy clamping.

[0035] It should be noted that each conveyor roller 10 is inclined, and a V-shaped groove is formed between the two conveyor rollers 10. The marine propeller shaft is located in the V-shaped groove. In actual use, the marine propeller shaft can be limited by the conveyor rollers 10, so that the marine propeller shaft is located between the two sets of conveyor rollers 10. In this way, the marine propeller shaft can be positioned when loading, and the conveying of the marine propeller shaft can be completed by rotating only one set of conveyor rollers 10.

[0036] Specifically, in use, the operator places the marine propeller shaft between two sets of conveyor rollers 10, and then controls the hydraulic rod 17 to extend via the controller. The hydraulic rod 17 lifts the support platform 18, raising the marine propeller shaft to a preset height. The controller then controls the second drive motor 13 to operate. Under the action of the first sprocket 12 and the second sprocket 14, the second drive motor 13 drives the conveyor rollers 10 to rotate, moving one end of the marine propeller shaft between the two clamping blocks 9. When the marine propeller shaft moves to the preset position, the controller shuts off the second drive motor 13 and simultaneously... The conductive slip ring 3 controls the operation of the dual-axis motor 6. The dual-axis motor 6 drives the two bidirectional lead screws 25 to rotate synchronously through the gearbox 23, so that the two clamping blocks 9 move synchronously relative to each other, clamping and fixing the marine propeller shaft and completing the positioning at the same time. Then, the controller controls the hydraulic rod 17 to retract, so that the support platform 18 is lowered to the preset position. Then, the controller controls the first drive motor 4 to work. The first drive motor 4 drives the connecting sleeve 20 to rotate under the action of the gear 22 and the gear ring 21. Thus, the rotation of the marine propeller shaft can be controlled as needed, and the marine propeller shaft can be processed by the processing mechanism.

[0037] Furthermore, such as Figure 1 and Figure 2 As shown, a limiting rod 29 is vertically installed on the top of each first fixing block 19. The top of the limiting rod 29 slides through two second fixing blocks 26 located on the same side. The limiting rod 29 can limit the two clamping blocks 9, so that the clamping blocks 9 remain stable.

[0038] Furthermore, such as Figure 1 and Figure 2 As shown, connecting blocks 15 are symmetrically installed on both sides of the support platform 18, and several guide rods 16 are vertically installed on the top of the base 1. The top of each guide rod 16 slides through the corresponding connecting block 15. The guide rods 16 can limit the support platform 18, so that the support platform 18 remains stable.

[0039] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A positioning tool for propeller shaft machining of a marine propeller, comprising a base (1), characterized in that: The top of the base (1) is provided with a mounting frame (2), the side of the mounting frame (2) is rotatably connected with a connecting sleeve (20), and the two ends of the connecting sleeve (20) extend to the two sides of the mounting frame (2); Two L-shaped mounting plates (8) are symmetrically arranged at one end of the connecting sleeve (20), one end of each L-shaped mounting plate (8) extends to one side of the connecting sleeve (20), and two clamping blocks (9) are symmetrically arranged between the two L-shaped mounting plates (8); the proximal surfaces of the two clamping blocks (9) are both provided with an open slot (28); The two sides of each clamping block (9) are both provided with a second fixing block (26), the two second fixing blocks (26) on the same side are connected through a bidirectional screw rod (25), and the two ends of one L-shaped mounting plate (8) are both provided with a first fixing block (19); one end of the bidirectional screw rod (25) is rotatably connected to the side surface of the corresponding first fixing block (19); The top of the other first fixing block (19) is provided with a double-shaft motor (6), the two ends of the double-shaft motor (6) are rotatably connected to the side surfaces of the second mounting plates (7) fixed on the two sides of the first fixing block (19), and the two ends of the double-shaft motor (6) are connected with the bidirectional screw rod (25) through a gear box (23), and the gear box (23) is fixed on the side surface of the second mounting plate (7); The top of the base (1) is provided with a support table (18), the bottom of the support table (18) is fixed on the top of the base (1) through a hydraulic rod (17), and the top of the support table (18) is symmetrically provided with a plurality of pairs of support frames (11); the conveying rollers (10) are rotatably connected between each pair of support frames (11); One end of the conveying roller (10) on one side is connected with a first sprocket (12), and the side surface of one of the support frames (11) is rotatably connected with a second sprocket (14) through a fixing frame (24); the first sprocket (12) and the second sprocket (14) are connected through a chain, the second sprocket (14) is connected with the output shaft of the second driving motor (13), and the second driving motor (13) is fixed on the side surface of the fixing frame (24).

2. The positioning tool for machining a propeller shaft of a ship according to claim 1, characterized in that: The top of the mounting frame (2) is provided with a first mounting plate (5), the side of the first mounting plate (5) is rotatably connected with a gear (22), one end of the gear (22) is connected with the first driving motor (4), the first driving motor (4) is fixed on the side surface of the first mounting plate (5), and the side surface of the end of the connecting sleeve (20) away from the L-shaped mounting plate (8) is provided with a gear ring (21), the gear ring (21) is engaged with the gear (22).

3. The positioning tooling for machining a marine propeller shaft according to claim 2, characterized in that: The side surface of the connecting sleeve (20) is provided with a conductive slip ring (3), the stator of the conductive slip ring (3) is fixed on the side surface of the mounting frame (2), the rotor of the conductive slip ring (3) is fixed on the connecting sleeve (20), and the rotor of the conductive slip ring (3) is connected with the double-shaft motor (6) through a wire.

4. The positioning tool for machining a propeller shaft of a ship according to claim 1, characterized in that: The open slot (28) is provided in a "V" shape.

5. The positioning tool for machining a propeller shaft of a ship according to claim 1, characterized in that: The top of each first fixing block (19) is vertically provided with a limiting rod (29), and the top of the limiting rod (29) slidably penetrates through the two second fixing blocks (26) on the same side.

6. The positioning tool for machining a propeller shaft of a ship according to claim 1, characterized in that: Each conveying roller (10) is arranged obliquely, and a V-shaped groove is formed between the two conveying rollers (10) on the two sides, and the marine propeller shaft is located in the V-shaped groove.

7. The positioning tool for machining a propeller shaft of a ship according to claim 1, characterized in that: Symmetrical connecting blocks (15) are installed on the two sides of the support table (18), and a plurality of guide rods (16) are vertically installed on the top of the base (1), and the top of each guide rod (16) slidably penetrates through the corresponding connecting block (15).

8. The positioning tool for machining a propeller shaft of a ship according to claim 1, characterized in that: A control cabinet (27) is installed on one side of the mounting frame (2), and a controller in the control cabinet (27) is connected with the first driving motor (4), the stator of the conductive slip ring (3), the second driving motor (13) and the hydraulic rod (17) through wires.

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