A conveying and welding device for ship propeller production
By designing an automated conveying and welding device for marine propeller production, automatic positioning and rotation welding of propeller blades and hubs were achieved, solving the problems of low efficiency and low precision of manual welding and improving processing efficiency and precision.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- DONGTAI NAVIGATION VALVE TECH CO LTD
- Filing Date
- 2023-05-22
- Publication Date
- 2026-07-21
AI Technical Summary
The current processing of marine propeller blades and hubs mainly relies on manual welding, which involves cumbersome procedures and low processing efficiency and precision.
A conveying and welding device for marine propeller production was designed, including a main frame, an electrically controlled conveyor belt mechanism, a lateral electrically controlled support rod, a main mounting arm, and welding components. The device achieves automatic positioning and rotation welding of the workpiece through a flip-adjusting arm and a positioning frame, and performs self-inspection by combining an infrared positioning module, thus simplifying the operation process.
It improves welding precision and efficiency, reduces workpiece handling and operation steps, and enhances production efficiency and welding stability.
Smart Images

Figure CN116571956B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of marine component processing and production technology, and in particular to a conveying and welding device for marine propeller production. Background Technology
[0002] Marine propellers are essential propulsion components for ships, mainly composed of blades and a hub. The part connecting the propeller to the stern shaft is called the hub, and its machining precision and quality directly affect the performance of the entire propulsion system. Currently, blade and hub machining is mainly done by manual welding. This requires placing the hub on a designated welding platform before operation, which involves cumbersome procedures such as conveying, handling, loading, and unloading, resulting in low processing efficiency. Furthermore, the welding relies heavily on manual labor, leading to low machining precision. Summary of the Invention
[0003] The technical problem to be solved by the present invention is to provide an improved conveying and welding device for the production of marine propeller blades in order to solve the problems existing in the background art. The device solves the problem that the current processing of propeller blades and hubs is mainly done by manual welding and fixing, which requires placing the hub on a designated welding platform before operation. This not only makes the operation cumbersome and the processing efficiency low, but also the processing accuracy low.
[0004] The technical solution adopted by the present invention to solve its technical problem is: a conveying and welding device for marine propeller production, comprising a main frame, an electrically controlled conveyor belt mechanism mounted on the main frame, a lateral electrically controlled support rod, a main mounting arm, and a first welding assembly and a second welding assembly assembled on the main mounting arm. The outer side wall of the main frame has an outwardly protruding lateral mounting seat. The lateral electrically controlled support rod and the main mounting arm are respectively movably assembled with the lateral mounting seat via a bottom movable seat. The main mounting arm includes a tilting adjustment arm movably mounted on the lateral mounting seat, an arc-shaped upper positioning frame and an arc-shaped lower positioning frame fixedly mounted on one end of the tilting adjustment arm, an upper arc-shaped adjustment guide rail fixedly mounted on the side wall of the tilting adjustment arm, a lower arc-shaped adjustment guide rail fixedly mounted on the side wall of the tilting adjustment arm, an adjustment motor fixedly mounted on the outside of the upper arc-shaped adjustment guide rail and the lower arc-shaped adjustment guide rail, an arc-shaped mounting bracket slidably mounted on the inside of the upper arc-shaped adjustment guide rail and the lower arc-shaped adjustment guide rail, and an electrically controlled telescopic mechanism mounted on the arc-shaped mounting bracket.
[0005] The first welding assembly and the second welding assembly are respectively fixedly connected to the bottom telescopic section of the electrically controlled telescopic machine via lateral brackets.
[0006] An inclined conveyor platform is fixedly mounted on the outer side of the tilting adjustment arm, and an inclined electrically controlled conveyor belt for conveying blades is movably mounted on the side wall of the inclined conveyor platform.
[0007] The top of the telescopic section of the lateral electrically controlled strut is inserted into the inner side wall of the tilting and adjusting arm via a lateral pivot and is movably connected to the tilting and adjusting arm.
[0008] The upper and lower arc-shaped positioning frames have arc-shaped adjustment grooves on their side walls for internally mounting electrically controlled adjustment wheels.
[0009] The upper and lower ends of the outer side surface of the flip-adjusting arm are movably fitted with flip-type lateral positioning arms, and the opposite surfaces of the flip-type lateral positioning arms are fixedly fitted with matching infrared positioning modules.
[0010] The upper and lower arc-shaped adjusting guide rails are tapered guide rails. The inner wall of the arc-shaped mounting bracket is provided with a transmission tooth groove that cooperates with the adjusting motor. The adjusting motor is connected to the arc-shaped mounting bracket through the adjusting gear on the adjusting shaft inserted into the transmission tooth groove.
[0011] The outer arc-shaped mounting bracket has an outwardly protruding fixed connection bracket, and a movable connection bracket for installing an electrically controlled telescopic machine is bolted to the fixed connection bracket.
[0012] An arc-shaped assembly opening is provided on the lower surface of the arc-shaped upper positioning frame and the upper surface of the arc-shaped lower positioning frame at corresponding positions. An infrared monitoring module is fixedly assembled inside the arc-shaped assembly opening.
[0013] The beneficial effects of this invention are:
[0014] (1) The conveying and welding device for the production of marine propeller blades of the present invention directly installs the welding equipment on one side of the conveying equipment. By flipping, it can not only limit the workpiece above the conveying equipment, but also control the rotation of the workpiece for welding. There is no need for workpiece handling, loading and unloading operations, which greatly reduces the production process and greatly improves the production efficiency.
[0015] (2) By using the arc-shaped upper positioning frame and the arc-shaped lower positioning frame located at one end of the flipping adjustment arm, the workpiece on the conveying equipment can be limited and positioned, and can be lifted.
[0016] (3) An arc-shaped mounting bracket controlled by an adjustment motor is installed inside the upper arc-shaped adjustment guide rail and the lower arc-shaped adjustment guide rail on the side wall of the flipping adjustment arm, so as to perform welding operations on the first welding component and the second welding component controlled by the electric telescopic machine. Double-sided synchronous welding is adopted, which greatly improves the welding accuracy and efficiency.
[0017] (4) By adopting a flip-type structure design, it can be quickly adjusted and separated, making it easier to separate from the welded workpiece and more convenient to use;
[0018] (5) The blades are conveyed laterally and their fit with the blade hub surface is improved, thereby improving the efficiency and stability of material conveying.
[0019] (6) Infrared positioning is used, which makes it easy to control and perform self-testing, making operation and testing more convenient. Attached Figure Description
[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0021] Figure 1 This is a schematic diagram of the structure of the present invention.
[0022] Figure 2 This is a top view of the main mounting arm in this invention.
[0023] Figure 3 This is a right view of the main mounting arm in this invention.
[0024] Figure 4 This is a schematic diagram of the structure when the double-sided welding method is used in this invention. Detailed Implementation
[0025] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the invention, and therefore only show the components relevant to the invention.
[0026] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.
[0027] Figure 1 , Figure 2 and Figure 3 The illustrated conveying and welding device for marine propeller production includes a main frame 1, an electrically controlled conveyor belt mechanism 2 mounted on the main frame 1, a lateral electrically controlled support rod 3, a main mounting arm, and a first welding assembly 4 and a second welding assembly 5 mounted on the main mounting arm. The outer side wall of the main frame 1 has an outwardly protruding lateral mounting seat 6. The lateral electrically controlled support rod and the main mounting arm are movably assembled with the lateral mounting seat via a bottom movable seat. The main mounting arm includes a tilting adjustment arm 7 movably mounted on the lateral mounting seat 6, an arc-shaped upper positioning frame 8 and an arc-shaped lower positioning frame 9 fixedly mounted on one end of the tilting adjustment arm 7, an upper arc-shaped adjustment guide rail 10 fixedly mounted on the side wall of the tilting adjustment arm 7, a lower arc-shaped adjustment guide rail 11 fixedly mounted on the side wall of the tilting adjustment arm 7, an adjustment motor 12 fixedly mounted on the outside of the upper arc-shaped adjustment guide rail 10 and the lower arc-shaped adjustment guide rail 11, an arc-shaped mounting bracket 13 slidably mounted on the inside of the upper arc-shaped adjustment guide rail 10 and the lower arc-shaped adjustment guide rail 11, and an electrically controlled telescopic mechanism 14 mounted on the arc-shaped mounting bracket 13.
[0028] The electrically controlled conveyor belt mechanism 2, the lateral electrically controlled support rod 3, the first welding assembly 4, the second welding assembly 5, and the electrically controlled telescopic mechanism 14 are all existing technologies;
[0029] The electrically controlled conveyor belt mechanism 2 is used to control the conveying of workpieces. During the conveying process, the workpieces are limited by the upper arc-shaped positioning frame 8 and the lower arc-shaped positioning frame 9, and the workpieces will be automatically guided and positioned to ensure consistent welding positions and improve welding accuracy.
[0030] The lateral electric support rod 3 controls the tilting adjustment arm 7 to tilt upwards towards the electric control conveyor belt mechanism 2, thereby limiting the workpiece conveyed on the surface of the electric control conveyor belt mechanism 2;
[0031] The first welding assembly 4 and the second welding assembly 5 respectively perform welding operations on the upper and lower ends of the blade and hub assembly surface.
[0032] The electrically controlled telescopic machine 14 is used to control the lifting and lowering of the first welding component 4 and the second welding component 5, ensuring that the distance between the first welding component 4, the second welding component 5 and the welding surface is consistent.
[0033] To facilitate assembly and control of lifting and adjustment, the first welding component 4 and the second welding component 5 are fixedly connected to the bottom telescopic section of the electrically controlled telescopic machine 14 via lateral brackets.
[0034] To facilitate the transport of blades, an inclined conveyor platform 15 is fixedly mounted on the outer side of the tilting adjustment arm 7, and an inclined electrically controlled conveyor belt 16 for transporting blades is movably mounted on the side wall of the inclined conveyor platform 15.
[0035] The inclined electrically controlled conveyor belt 16 is an existing technology used to transport the blades to the outside of the blade hub, ensuring fit while giving it a certain lateral compressive force.
[0036] To facilitate assembly and adjustment, the top of the telescopic section of the lateral electric support rod 3 is inserted into the inner side wall of the tilting adjustment arm 7 via a lateral pivot and is movably connected to the tilting adjustment arm 7.
[0037] To facilitate rotation adjustment, arc-shaped adjustment grooves are provided on the side walls of the arc-shaped upper positioning frame 8 and the arc-shaped lower positioning frame 9, which are internally equipped with electrically controlled adjustment wheels 17.
[0038] The electrically controlled adjusting wheel 17 is existing technology. It drives the paddle hub to rotate and adjust on the surface of the electrically controlled conveyor belt mechanism 2 by rotating. In order to reduce the friction at the bottom of the paddle hub, a detachable bottom rotating seat can be installed on the surface of the electrically controlled conveyor belt mechanism 2 first, and then the paddle hub can be placed on the bottom rotating seat. In this way, the paddle hub can be easily rotated and adjusted.
[0039] like Figure 4As shown, lateral electrically controlled support rods 3, main mounting arms, first welding components 4, second welding components 5, and lateral mounting seats 6 can be installed on both sides of the main frame 1 as needed, using a staggered layout. This can reduce welding time by half and eliminate the need for a detachable bottom rotating seat.
[0040] To facilitate infrared positioning control, flip-type lateral positioning arms 18 are movably mounted on the upper and lower ends of the outer side surface of the flip-type adjusting arm 7, and a matching infrared positioning module 19 is fixedly mounted on the opposite surface of the flip-type lateral positioning arm 18.
[0041] The upper arc-shaped positioning frame 8, the lower arc-shaped positioning frame 9, the upper arc-shaped adjustment guide rail 10, the lower arc-shaped adjustment guide rail 11, and the flip-type lateral positioning arm 18 are all offset from the blade and are located above and below the blade, respectively.
[0042] The infrared positioning module 19 is existing technology. It positions the flipped blade, thereby controlling the electronically controlled adjusting wheel 17 to close, and then controlling the inclined electronically controlled conveyor belt 16 to drive it. The inclined electronically controlled conveyor belt 16 drives the next blade to be conveyed to the surface of the blade hub.
[0043] To accommodate the sliding limit and internal gear adjustment, the upper arc-shaped adjustment guide rail 10 and the lower arc-shaped adjustment guide rail 11 are tapered guide rails. The inner side wall of the arc-shaped mounting bracket 13 is provided with a transmission tooth groove that cooperates with the adjustment motor 12. The adjustment motor 12 is connected to the arc-shaped mounting bracket 13 by inserting the adjustment gear on the adjustment shaft into the transmission tooth groove.
[0044] The adjusting motor 12 is existing technology. It drives the adjusting gear to move the arc-shaped mounting bracket 13 to slide and adjust inside the upper arc-shaped adjusting guide rail 10 and the lower arc-shaped adjusting guide rail 11.
[0045] The outer arc-shaped mounting bracket 13 has an outwardly protruding fixed connecting bracket 20, and a movable connecting bracket 21 for installing the electric telescopic machine 14 is bolted on the fixed connecting bracket 20.
[0046] To facilitate infrared positioning of the blades, a release control can be implemented after welding. An arc-shaped assembly port 22 is provided on the lower surface of the arc-shaped upper positioning frame 8 and the upper surface of the arc-shaped lower positioning frame 9, respectively. An infrared monitoring module 23 is fixedly installed inside the arc-shaped assembly port 22.
[0047] The infrared monitoring module 23 is a prior art technology. It is assembled by being installed and fixed inside the arc-shaped assembly port 22 of the arc-shaped upper positioning frame 8 and the arc-shaped lower positioning frame 9. The infrared monitoring module 23 on the arc-shaped upper positioning frame 8 emits infrared rays downwards, and then the infrared monitoring module 23 on the arc-shaped lower positioning frame 9 receives them to determine whether the welding operation is incomplete. If the upper and lower infrared monitoring modules are blocked by the blades, it means that a ring of blades has been welded around the outside of the propeller hub. Then the infrared monitoring module 23 controls the lateral electric control strut 3 to retract, thereby controlling the main mounting arm to flip outwards, so that the arc-shaped upper positioning frame 8 and the arc-shaped lower positioning frame 9 are separated from the propeller hub, thus facilitating the removal of the workpiece after welding.
[0048] This invention discloses a conveying and welding device for marine propeller production. The welding equipment is directly installed on one side of the conveying equipment. By flipping the device, it can not only limit the position of the workpiece above the conveying equipment but also control the rotation of the workpiece for welding. This eliminates the need for workpiece handling, loading, and unloading operations, significantly reducing production steps and greatly improving production efficiency. The arc-shaped upper positioning frame 8 and arc-shaped lower positioning frame 9, located at one end of the flipping adjusting arm 7, cooperate to limit and position the workpiece on the conveying equipment, allowing for lifting. The upper arc-shaped adjusting guide rail 10 and lower arc-shaped adjusting guide rail 11 on the side wall of the flipping adjusting arm 7... The unit is equipped with an arc-shaped mounting bracket 13 controlled by an adjusting motor 12, which enables welding operations on the first welding component 4 and the second welding component 5, which are raised and lowered by an electrically controlled telescopic mechanism 14. Double-sided synchronous welding is employed, significantly improving welding accuracy and efficiency. The flip-type structural design allows for quick adjustment and separation, facilitating separation from the welded workpiece and enhancing usability. Lateral conveying of the blades and improved contact with the blade hub surface further improves material conveying efficiency and stability. Infrared positioning facilitates control and self-inspection, making operation and testing more convenient.
[0049] Based on the above-described preferred embodiments of the present invention, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the inventive concept. The technical scope of this invention is not limited to the contents of the specification, but must be determined according to the scope of the claims.
Claims
1. A conveying and welding device for marine propeller production, comprising a main frame (1), an electrically controlled conveyor belt mechanism (2) mounted on the main frame (1), a lateral electrically controlled support rod (3), a main mounting arm, and a first welding assembly (4) and a second welding assembly (5) assembled on the main mounting arm, characterized in that: The main frame (1) has an outwardly protruding lateral mounting seat (6) on its outer side wall. The lateral electric control support rod (3) and the main mounting arm are movably assembled with the lateral mounting seat (6) through the bottom movable seat. The main mounting arm includes a flip adjustment arm (7) movably mounted on the lateral mounting seat, an arc-shaped upper positioning frame (8) and an arc-shaped lower positioning frame (9) fixedly mounted on one end of the flip adjustment arm (7), an upper arc-shaped adjustment guide rail (10) fixed on the side wall of the flip adjustment arm (7), a lower arc-shaped adjustment guide rail (11) fixed on the side wall of the flip adjustment arm (7), an adjustment motor (12) fixed on the outside of the upper arc-shaped adjustment guide rail (10) and the lower arc-shaped adjustment guide rail (11), an arc-shaped mounting bracket (13) slidably mounted on the inside of the upper arc-shaped adjustment guide rail (10) and the lower arc-shaped adjustment guide rail (11), and an electric telescopic machine (14) mounted on the arc-shaped mounting bracket (13). The first welding assembly (4) and the second welding assembly (5) are respectively fixedly connected to the bottom telescopic section of the electrically controlled telescopic machine (14) through lateral brackets; An inclined conveyor platform (15) is fixedly mounted on the outer side of the tilting adjustment arm (7), and an inclined electrically controlled conveyor belt (16) for conveying blades is movably mounted on the side wall of the inclined conveyor platform (15).
2. The conveying and welding device for marine propeller production according to claim 1, characterized in that: The top of the telescopic section of the lateral electric support rod (3) is inserted into the inner side wall of the flip adjustment arm (7) via a lateral rotating shaft and is movably connected to the flip adjustment arm (7).
3. The conveying and welding device for marine propeller production according to claim 1, characterized in that: The upper arc-shaped positioning frame (8) and the lower arc-shaped positioning frame (9) have arc-shaped adjustment grooves on their side walls for internally installing electrically controlled adjustment wheels (17).
4. The conveying and welding device for marine propeller production according to claim 1, characterized in that: The upper and lower ends of the outer side surface of the flip adjustment arm (7) are movably equipped with flip-type lateral positioning arms (18), and the opposite surfaces of the flip-type lateral positioning arms (18) are fixedly equipped with matching infrared positioning modules (19).
5. The conveying and welding device for marine propeller production according to claim 1, characterized in that: The upper arc-shaped adjustment guide rail (10) and the lower arc-shaped adjustment guide rail (11) are narrow-gauge guide rails. The inner side wall of the arc-shaped mounting bracket (13) is provided with a transmission tooth groove that cooperates with the adjustment motor (12). The adjustment motor (12) is connected to the arc-shaped mounting bracket (13) by inserting the adjustment gear on the adjustment shaft into the transmission tooth groove.
6. The conveying and welding device for marine propeller production according to claim 1, characterized in that: The outer arc-shaped mounting bracket (13) has an outwardly protruding fixed connecting bracket (20), and a movable connecting bracket (21) for installing an electric telescopic machine (14) is bolted on the fixed connecting bracket (20).
7. The conveying and welding device for marine propeller production according to claim 1, characterized in that: The lower surface of the arc-shaped upper positioning frame (8) and the upper surface of the arc-shaped lower positioning frame (9) are provided with arc-shaped assembly openings (22), and an infrared monitoring module (23) is fixedly assembled inside the arc-shaped assembly openings (22).