Polishing tool for processing rudder propeller mounting base
By designing a grinding fixture that includes a base, a rotating support, and a grinding mechanism, the problem of low grinding efficiency on the inner and outer surfaces of the propeller mounting base was solved, realizing automated grinding of the inner and outer surfaces and improving grinding efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHANGJIAGANG HAILI MASCH CO LTD
- Filing Date
- 2025-08-28
- Publication Date
- 2026-07-24
AI Technical Summary
Existing grinding equipment cannot effectively grind regular areas on the inner and outer surfaces of the propeller mounting base, thus affecting the grinding efficiency of the equipment.
A grinding fixture including a base, a rotating support, an inner ring connecting plate, and a grinding mechanism was designed. The lifting seat is driven to move vertically and the inner ring connecting plate is rotated by a hydraulic cylinder. In conjunction with the grinding motor driving the grinding roller, the automatic rotation and vertical feeding of the base body are realized, ensuring that both the inner and outer surfaces can be ground normally.
The system enables automated grinding of the inner and outer surfaces of the propeller mounting base, reducing the workload of manual grinding and improving grinding efficiency and effectiveness.
Smart Images

Figure CN224544238U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of grinding technology, specifically a grinding fixture for machining a propeller mounting base. Background Technology
[0002] During production, the surface of the propeller mounting base needs to be polished to increase surface roughness and enhance coating adhesion. Existing technologies include surface polishing devices, such as the polishing tool for automated mechanical manufacturing described in publication number CN223098769U, which relates to the field of polishing-related equipment technology. This utility model includes a main component, which includes a base and a fixing component on the base. The main component also includes an L-shaped fixing member fixed to the upper surface of the base, with a linear module fixed to the end of the L-shaped fixing member furthest from the base.
[0003] Although the above-mentioned device can grind the outer surface, the main body of the propeller is relatively regular in shape as a cylindrical body, while the upper part is irregular and has a sloping top. The sloping top can be processed by manual grinding, while the regular parts of the inner and outer surfaces, i.e. the cylindrical body, can be machine-ground. After the propeller is placed, the grinding mechanism cannot grind its inner surface, which affects the grinding efficiency of the device. Utility Model Content
[0004] The purpose of this invention is to provide a grinding fixture for machining a propeller mounting base, so as to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] A grinding fixture for machining a propeller mounting base includes a base, an outer ring mounting seat fixedly connected to the upper surface of the base, a protective cover fixedly connected to the outer surface of the base, a detachable rotating support connected to the upper surface of the outer ring mounting seat, a second mounting cavity formed on the outer surface of the protective cover, and a first mounting cavity formed on the outer surface of the protective cover.
[0007] The inner ring of the rotary support is fixedly connected to an inner ring connecting plate. A snap-fit plate is embedded in the upper surface of the inner ring connecting plate. A guide frame is fixedly connected to the upper surface of the base. A lifting seat is movably connected to the upper surface of the guide frame. A grinding mechanism is provided on the outer surface of the lifting seat and inside the second mounting cavity. The grinding mechanism includes a second hydraulic cylinder and a grinding seat. One second hydraulic cylinder is fixedly connected to the lifting seat, and the other second hydraulic cylinder is fixedly connected to the inner wall of the second mounting cavity. The grinding seat is fixedly connected to the output end of the second hydraulic cylinder. A guide rod is fixedly connected to the outer surface of the grinding seat near the second hydraulic cylinder.
[0008] Furthermore, the lower end of the inner ring connecting plate is embedded and rotatably connected to the inside of the protective cover, and several meshing teeth are fixedly connected to the outer surface of the inner ring connecting plate near the lower edge, and a feeding sloping plate is fixedly connected to the side surface of the base.
[0009] Furthermore, an integrated motor reducer is fixedly connected inside the first mounting cavity, and a gear is fixedly connected to the output end of the integrated motor reducer, with the gear meshing with a meshing tooth.
[0010] Furthermore, a rubber dustproof ring is fixedly connected to the outer surface of the inner ring connecting plate, and a connecting groove is provided on the upper surface of the inner ring connecting plate, with the snap-fit plate matching the connecting groove.
[0011] Furthermore, a guide rod is fixedly connected to the lower surface of the lifting seat, and a first hydraulic cylinder is fixedly connected to the upper surface of the guide frame, with the output end of the first hydraulic cylinder fixedly connected to the lifting seat.
[0012] Furthermore, the grinding mechanism also includes a dust cover and a rotating shaft. The dust cover is fixedly connected to the lower surface of the grinding base, and a grinding motor is fixedly connected to the lower surface of the dust cover. The rotating shaft is embedded and rotatably connected to the upper surface of the dust cover. A grinding roller is nested on the outer surface of the rotating shaft, and a fastening bolt is threaded on the outer surface of the grinding roller. A sprocket is fixedly connected to the outer surface of the rotating shaft and the output end of the grinding motor, and a chain is meshed on the outer surface of the sprocket.
[0013] Furthermore, a controller is fixedly connected to the upper surface of the base, and a blocking cover is fixedly connected to the outer surface of one of the dust covers.
[0014] Compared with the prior art, the beneficial effects of this utility model are:
[0015] 1. The protective cover protects the meshing teeth. The integrated motor reducer drives the meshing teeth through gears, thereby driving the inner ring connecting plate and the snap-fit plate to rotate synchronously, realizing the automatic rotation and face changing of the base body.
[0016] 2. The first hydraulic cylinder drives the lifting seat to move vertically, realizing the Z-axis feed of the grinding mechanism. It works with the rotating base body to complete the grinding of the regular surface of the outer wall. The grinding motor drives the rotating shaft through the chain to drive the grinding roller to rotate at high speed. The fastening bolts are used to install the grinding roller to adapt to different grinding areas, so that the grinding rollers located on the outer surface of the base body and the grinding rollers on the inner surface of the base body can be ground normally, reducing the amount of manual grinding work for workers. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0018] Figure 2 This is a cross-sectional view of the base of this utility model;
[0019] Figure 3 This is a schematic diagram of the inner ring connecting disc connection structure of this utility model;
[0020] Figure 4 This is a schematic diagram of the base structure from another angle of this utility model;
[0021] Figure 5 This is a cross-sectional structural diagram of the grinding mechanism of this utility model.
[0022] In the diagram: 1. Base; 101. Feeding sloping plate; 102. Outer ring mounting seat; 2. Protective cover; 201. First mounting cavity; 202. Second mounting cavity; 3. Integrated motor reducer; 301. Gear; 4. Rotary bearing; 5. Inner ring connecting plate; 501. Meshing teeth; 502. Rubber dustproof ring; 503. Connecting groove; 504. Snap-fit plate; 6. Base body; 7. Guide frame; 701. Lifting seat; 702. Guide rod; 703. First hydraulic cylinder; 8. Grinding mechanism; 801. Grinding seat; 802. Guide rod; 803. Second hydraulic cylinder; 804. Dustproof cover; 805. Grinding motor; 806. Rotating shaft; 807. Grinding roller; 808. Fastening bolt; 809. Chain; 9. Controller; 10. Blocking cover. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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.
[0024] Please see Figure 1-5 In this embodiment of the utility model, a grinding fixture for processing a propeller mounting base includes a base 1, an outer ring mounting seat 102 fixedly connected to the upper surface of the base 1, a protective cover 2 fixedly connected to the outer surface of the base 1, a detachable rotating support 4 connected to the upper surface of the outer ring mounting seat 102, a second mounting cavity 202 and a first mounting cavity 201 opened on the outer surface of the protective cover 2.
[0025] The inner ring of the rotating support 4 is fixedly connected to an inner ring connecting plate 5. A snap-fit plate 504 is embedded in the upper surface of the inner ring connecting plate 5. A guide frame 7 is fixedly connected to the upper surface of the base 1. A lifting seat 701 is movably connected to the upper surface of the guide frame 7. A grinding mechanism 8 is provided on the outer surface of the lifting seat 701 and inside the second mounting cavity 202. The grinding mechanism 8 includes a second hydraulic cylinder 803 and a grinding seat 801. One second hydraulic cylinder 803 is fixedly connected to the lifting seat 701, and the other second hydraulic cylinder 803 is fixedly connected to the inner wall of the second mounting cavity 202. The grinding seat 801 is fixedly connected to the output end of the second hydraulic cylinder 803. A guide rod 802 is fixedly connected to the outer surface of the grinding seat 801 near the second hydraulic cylinder 803.
[0026] Specifically, the device is placed on a horizontal surface via the base 1. The outer ring mounting seat 102 and the outer ring portion of the rotating support 4 are fixedly connected, allowing the inner ring connecting plate 5, which is fixedly connected to the inner ring portion of the rotating support 4, and the outer ring mounting seat 102 to rotate relative to each other. The specifications of the snap-fit plate 504 can be customized. The base body 6 is placed in the groove position on the upper surface of the snap-fit plate 504. The second hydraulic cylinder 803 is activated, and the output end of the second hydraulic cylinder 803 can drive the grinding seat 801 to move horizontally. One set of guide rods 802 passes through the lifting seat 701 and is slidably connected to the lifting seat 701. Similarly, another set of guide rods 802 passes through the protective cover 2 to guide the movement of the grinding seat 801, so that the grinding seat 801 is suitable for the outer and inner walls of the base body 6.
[0027] Example 1
[0028] like Figure 1-5 As shown, the lower end of the inner ring connecting plate 5 is embedded and rotatably connected to the inside of the protective cover 2. Several meshing teeth 501 are fixedly connected to the outer surface of the inner ring connecting plate 5 near the lower edge. The side surface of the base 1 is fixedly connected to the feeding inclined plate 101. The inside of the first mounting cavity 201 is fixedly connected to the integrated motor reducer 3. The output end of the integrated motor reducer 3 is fixedly connected to the gear 301. The gear 301 and the meshing teeth 501 are meshed. The outer surface of the inner ring connecting plate 5 is fixedly connected to the rubber dustproof ring 502. The upper surface of the inner ring connecting plate 5 is provided with a connecting groove 503. The snap-fit plate 504 matches the connecting groove 503.
[0029] In this embodiment, the protective cover 2 protects the meshing teeth 501, reducing the possibility of debris entering the meshing teeth 501. The integrated motor reducer 3 drives the meshing teeth 501 through the gear 301, thereby driving the inner ring connecting plate 5 and the snap-fit plate 504 to rotate synchronously, realizing the automatic rotation and face-changing of the base body 6. The rubber dustproof ring 502 is tightly attached to the inner wall of the protective cover 2 to prevent grinding debris from entering the meshing area. The connecting groove 503 cooperates with the protruding part of the snap-fit plate 504 to realize the quick disassembly and assembly of the snap-fit plate 504.
[0030] Example 2
[0031] Based on Embodiment 1, in order to overcome the problem that it is inconvenient to polish the regular areas on both the inner and outer surfaces of the base body 6 in Embodiment 1.
[0032] like Figure 1-5 As shown, a guide rod 702 is fixedly connected to the lower surface of the lifting seat 701, and a first hydraulic cylinder 703 is fixedly connected to the upper surface of the guide frame 7. The output end of the first hydraulic cylinder 703 is fixedly connected to the lifting seat 701.
[0033] In this embodiment, the first hydraulic cylinder 703 drives the lifting seat 701 to move vertically, realizing the Z-axis feed of the grinding mechanism 8, and cooperating with the rotating base body 6 to complete the grinding of the regular surface of the outer wall.
[0034] like Figure 1-5 As shown, the grinding mechanism 8 also includes a dust cover 804 and a rotating shaft 806. The dust cover 804 is fixedly connected to the lower surface of the grinding base 801. A grinding motor 805 is fixedly connected to the lower surface of the dust cover 804. The rotating shaft 806 is embedded and rotatably connected to the upper surface of the dust cover 804. A grinding roller 807 is nested on the outer surface of the rotating shaft 806. A fastening bolt 808 is threaded on the outer surface of the grinding roller 807. A sprocket is fixedly connected to the outer surface of the rotating shaft 806 and the output end of the grinding motor 805. A chain 809 is meshed on the outer surface of the sprocket. A controller 9 is fixedly connected to the upper surface of the base 1. A blocking cover 10 is fixedly connected to the outer surface of one of the dust covers 804.
[0035] In this embodiment, the grinding motor 805 drives the rotating shaft 806 via the chain 809 to drive the grinding roller 807 to rotate at high speed. The fastening bolt 808 is used to install the grinding roller 807 to adapt to different grinding areas, so that the grinding roller 807 located on the outer surface of the base body 6 and the grinding roller 807 located on the inner surface of the base body 6 can grind normally, reducing the workload of manual grinding by workers. The dust cover 804 and the blocking cover 10 form a semi-enclosed space to guide the debris to be discharged. The feeding inclined plate 101 is used to receive the debris on the inner surface of the base body 6. The controller 9 integrates a PLC module to assist in the control of the electrical components.
[0036] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0037] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A grinding fixture for machining a propeller mounting base, comprising a base (1), an outer ring mounting seat (102) fixedly connected to the upper surface of the base (1), a protective cover (2) fixedly connected to the outer surface of the base (1), a swivel support (4) detachably connected to the upper surface of the outer ring mounting seat (102), a second mounting cavity (202) and a first mounting cavity (201) opened on the outer surface of the protective cover (2); Its features are, The inner ring of the rotating support (4) is fixedly connected to an inner ring connecting plate (5), and a snap-fit plate (504) is embedded in the upper surface of the inner ring connecting plate (5). A guide frame (7) is fixedly connected to the upper surface of the base (1), and a lifting seat (701) is movably connected to the upper surface of the guide frame (7). A grinding mechanism (8) is provided on the outer surface of the lifting seat (701) and inside the second mounting cavity (202). The grinding mechanism (8) includes: A grinding base (801) is fixedly connected to the output end of the second hydraulic cylinder (803), and a guide rod (802) is fixedly connected to the outer surface of the grinding base (801) near the position of the second hydraulic cylinder (803).
2. The grinding fixture for machining the propeller mounting base according to claim 1, characterized in that, The lower end of the inner ring connecting plate (5) is embedded and rotatably connected to the inside of the protective cover (2). Several meshing teeth (501) are fixedly connected to the outer surface of the inner ring connecting plate (5) near the lower edge. The side surface of the base (1) is fixedly connected to the feeding sloping plate (101).
3. The grinding fixture for machining the propeller mounting base according to claim 2, characterized in that, An integrated motor reducer (3) is fixedly connected inside the first mounting cavity (201). A gear (301) is fixedly connected to the output end of the integrated motor reducer (3). The gear (301) and the meshing gear (501) are meshed together.
4. The grinding fixture for machining the propeller mounting base according to claim 1, characterized in that, A rubber dustproof ring (502) is fixedly connected to the outer surface of the inner ring connecting plate (5), and a connecting groove (503) is opened on the upper surface of the inner ring connecting plate (5). The snap-fit plate (504) and the connecting groove (503) are matched.
5. The grinding fixture for machining the propeller mounting base according to claim 1, characterized in that, A guide rod (702) is fixedly connected to the lower surface of the lifting seat (701), and a first hydraulic cylinder (703) is fixedly connected to the upper surface of the guide frame (7). The output end of the first hydraulic cylinder (703) is fixedly connected to the lifting seat (701).
6. The grinding fixture for machining the propeller mounting base according to claim 1, characterized in that, The polishing mechanism (8) also includes: A dust cover (804) is fixedly connected to the lower surface of the grinding base (801), and a grinding motor (805) is fixedly connected to the lower surface of the dust cover (804). A rotating shaft (806) is embedded and rotatably connected to the upper surface of a dust cover (804). A grinding roller (807) is nested on the outer surface of the rotating shaft (806). A fastening bolt (808) is threaded on the outer surface of the grinding roller (807). A sprocket is fixedly connected to the outer surface of the rotating shaft (806) and the output end of the grinding motor (805). A chain (809) is meshed on the outer surface of the sprocket.
7. The grinding fixture for machining the propeller mounting base according to claim 6, characterized in that, The upper surface of the base (1) is fixedly connected to the controller (9), and the outer surface of one of the dust covers (804) is fixedly connected to the barrier cover (10).