Paddle shaft end punching device
By designing a punching device for the propeller end, which includes a punching seat, a docking positioning rod, and a punching cylinder, the problems of large punching error and deformation in the prior art are solved, and efficient and precise punching of the propeller end is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WEIHAI DERUI MOLDING TECH CO LTD
- Filing Date
- 2025-09-01
- Publication Date
- 2026-07-24
AI Technical Summary
In the existing technology, the punching device at the end of the propeller shaft has large errors, which affects the feel of use and is prone to deformation of the propeller shaft end.
A punching device for the end of a propeller shaft is adopted, including a punching seat, a docking positioning rod, a punching cylinder, and a punching pressure rod. Through the cooperation of the docking positioning rod and the punching pressure rod, precise punching of the end of the propeller shaft is achieved, avoiding deformation.
It improves the accuracy and efficiency of punching, reduces deformation at the end of the propeller, and enhances the operator's feel.
Smart Images
Figure CN224542847U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of propeller end punching technology, specifically a propeller end punching device with simple structure, high punching efficiency, and good punching effect. Background Technology
[0002] As we all know, a paddle is a rowing tool used to propel a boat forward. Utilizing the lever principle, a paddle mimics the pectoral and pelvic fins of a fish. During its movement in the water, it propels the boat forward through the reaction force of the water waves. A paddle generally consists of a shaft and blades. The shaft is inserted and fixed to the tail end of the blades. The shaft is typically telescopic or plug-in type, with adjacent shafts usually secured by ball bearings. This requires punching round holes on the shaft for the ball bearings to engage. To ensure a good overall feel for the shaft, these holes are usually located on the shaft at the axis of the blades. However, to ensure the holes are aligned with the blade axis, manual alignment is often necessary, leading to errors between the holes and the blade axis, affecting the user's feel. Currently, to reduce worker workload, a groove is punched at the end of the shaft to mate with the plug-in boss of the blade. However, since the groove is at the end of the shaft, direct punching can cause compression at the shaft end, affecting the subsequent insertion of the shaft. Summary of the Invention
[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a paddle end punching device with simple structure, high punching efficiency, and good punching effect.
[0004] The technical solution adopted by this utility model to solve its technical problem is: A punching device for the end of a propeller shaft, characterized in that the device includes a punching seat, a docking positioning rod, a punching cylinder, a punching pressure rod, and a punching bracket. The punching bracket is fixed with the punching cylinder and the punching seat respectively. The output end of the punching cylinder is connected to the punching pressure rod. The docking positioning rod is fixed to the inner side of the punching seat. The docking positioning rod is provided with a punching through hole. The punching pressure rod passes through the through hole on the punching seat and is inserted into the propeller shaft on the docking positioning rod. After passing through the punching through hole, the propeller shaft is punched through the propeller shaft.
[0005] The docking positioning rod of this utility model includes a fixing part, a plug-in part, and a lower supporting part. The fixing part and the plug-in part are integrally connected. The diameter of the plug-in part is smaller than the diameter of the fixing part. The lower supporting part is integrally fixed to the side of the fixing part below the plug-in part. The punching pressure rod includes an integrally connected punching guide part and a punching stamping part. The fixing part, the plug-in part, and the lower supporting part are provided with a punching through hole from top to bottom. The punching through hole includes a guide hole and a punching hole. The punching guide part is inserted into the guide hole, and the punching stamping part is inserted into the punching hole. The end of the propeller rod is punched through the punching stamping part.
[0006] The punching seat of this utility model includes an upper seat plate, a vertical plate and a lower seat plate. The ends of the upper seat plate and the lower seat plate are integrally connected via the vertical plate. A positioning rod is connected to the vertical plate. The right end of the lower seat plate is provided with an integrally formed baffle protrusion, which passes through a hole on the upper seat plate.
[0007] The lower base plate of this utility model is provided with a discharge hole, and a receiving box is installed on the lower base plate below the discharge hole. The receiving box collects the waste material of the paddle rod after stamping and cutting.
[0008] The diameter of the insertion part of the docking positioning rod described in this utility model is smaller than the inner diameter of the propeller rod, which facilitates the insertion of the propeller rod.
[0009] This utility model, due to the above-mentioned structure, has the advantages of simple structure, high punching efficiency, and good punching effect. Attached Figure Description
[0010] Figure 1 This is a schematic diagram of the structure of this utility model.
[0011] Figure 2 yes Figure 1 A partial enlarged view of the lower punch seat.
[0012] Figure 3 This is a schematic diagram of the structure of the propeller rod after punching. Detailed Implementation
[0013] The present invention will be further described below with reference to the accompanying drawings: As shown in the attached figure, a punching device for the end of a propeller shaft is provided with a punching bracket. The device is characterized by including a punching seat 1, a docking positioning rod 2, a punching cylinder 3, and a punching pressure rod 4. The punching cylinder 3 and the punching seat 1 are fixed on the punching bracket respectively. The output end of the punching cylinder 3 is connected to the punching pressure rod 4. The docking positioning rod 2 is fixed on the inner side of the punching seat 1. The docking positioning rod 2 is provided with a punching through hole 5. The punching pressure rod 4 passes through the through hole on the punching seat 1 and is inserted into the propeller shaft on the docking positioning rod 2. After passing through the punching through hole 5, the propeller shaft is punched through.
[0014] Furthermore, the docking positioning rod 2 includes a fixing part 6, a plug-in part 7, and a lower supporting part 8. The fixing part 6 and the plug-in part 7 are integrally connected. The diameter of the plug-in part 7 is smaller than the diameter of the fixing part 6. The lower supporting part 8 is integrally fixed to the side of the fixing part 6 below the plug-in part 7. The punching pressure rod 4 includes an integrally connected punching guide part 9 and punching pressing part 10. The fixing part 6, the plug-in part 7, and the lower supporting part 8 are provided with a punching through hole 5 that runs from top to bottom. The punching through hole 5 includes a connecting guide hole 11 and a punching hole 12. The punching guide part 9 is inserted into the guide hole 11, and the punching pressing part 10 is inserted into the punching hole 12. The end of the propeller rod is perforated through the punching pressing part 10.
[0015] Furthermore, the punching seat 1 includes an upper seat plate 13, a vertical plate 14, and a lower seat plate 15. The ends of the upper seat plate 13 and the lower seat plate 15 are integrally connected via the vertical plate 14. The docking positioning rod 2 is connected to the vertical plate 14. The right end of the lower seat plate 15 is provided with an integrally formed baffle protrusion 16, which passes through a hole on the upper seat plate 13.
[0016] Furthermore, the lower base plate 15 is provided with a discharge hole 17, and a receiving box is installed on the lower base plate 15 below the discharge hole 17. The receiving box collects the waste material of the paddle rod after stamping and cutting.
[0017] Furthermore, the diameter of the insertion part 7 of the docking positioning rod 2 is smaller than the inner diameter of the propeller rod, which facilitates the insertion of the propeller rod.
[0018] During installation, the cylinder seat of the punching cylinder 3 is fixed to the punching bracket, and the punching seat 1 is fixed to the punching bracket (the punching bracket is a fixed structure, a frame, and is existing technology, not shown in the figure). The unloading box mentioned above is a common box body, placed directly below the lower seat body, so this structure is not shown in the figure. When using this utility model, one end of the paddle rod is manually inserted into the insertion part 7 of the docking positioning rod 2, and then the punching cylinder 3 is started. The output end of the punching cylinder 3 moves down, driving the punching pressure rod 4 to move down. The lower end of the punching pressure rod 4 passes through the through hole on the upper seat plate 13 of the punching seat 1 and continues to press down. The punching guide part 9 of the punching pressure rod 4... Passing through the guide hole 11, the punching and stamping part 10 passes above the propeller rod and continues to move downward, passing below the propeller rod and through the punching hole 12, thereby realizing the punching of the end of the propeller rod 19 and punching out the required insertion slot hole 18 at the end of the propeller rod 19. The waste material after punching falls into the receiving box through the discharge hole 17 of the lower seat plate 15, thus completing the end punching of the propeller rod. Due to the lower support part 8, the lower support part 8 can ensure the punching effect on the lower side of the propeller rod, avoid the deformation of the propeller rod during the punching process, ensure the punching effect, and also increase the punching efficiency. Due to the above structure, this utility model has the advantages of simple structure, high punching efficiency, and good punching effect.
Claims
1. A punching device for the end of a propeller shaft, characterized in that... The device includes a punching seat, a docking positioning rod, a punching cylinder, a punching pressure rod, and a punching bracket. The punching bracket has the punching cylinder and the punching seat fixed on it respectively. The output end of the punching cylinder is connected to the punching pressure rod. The docking positioning rod is fixed on the inner side of the punching seat. The docking positioning rod has a punching through hole. The punching pressure rod passes through the through hole on the punching seat and is inserted into the paddle rod on the docking positioning rod. After passing through the punching through hole, the paddle rod is punched through the paddle rod.
2. The paddle shaft end punching device according to claim 1, characterized in that... The docking positioning rod includes a fixing part, a plug-in part, and a lower supporting part. The fixing part and the plug-in part are integrally connected. The diameter of the plug-in part is smaller than the diameter of the fixing part. The lower supporting part is integrally fixed to the side of the fixing part below the plug-in part. The punching pressure rod includes an integrally connected punching guide part and a punching stamping part. The fixing part, the plug-in part, and the lower supporting part are provided with a punching through hole from top to bottom. The punching through hole includes a guide hole and a punching hole. The punching guide part is inserted into the guide hole, and the punching stamping part is inserted into the punching hole. The end of the propeller rod is punched through the punching stamping part.
3. The paddle shaft end punching device according to claim 1, characterized in that... The punching seat includes an upper seat plate, a vertical plate, and a lower seat plate. The ends of the upper seat plate and the lower seat plate are integrally connected via the vertical plate. A positioning rod is connected to the vertical plate. The right end of the lower seat plate is provided with an integrally formed baffle protrusion, which passes through a hole on the upper seat plate.
4. The paddle shaft end punching device according to claim 3, characterized in that... The lower base plate is provided with a discharge hole, and a receiving box is installed on the lower base plate below the discharge hole. The receiving box collects the waste material of the paddle rod after stamping and cutting.
5. The paddle shaft end punching device according to claim 1, characterized in that... The diameter of the insertion part of the docking positioning rod is smaller than the inner diameter of the propeller rod.