A polishing device for curved surface machining
By designing a grinding and polishing device that includes components such as a main frame, rotary knob, movable rod, and ring connector, the problem of low efficiency of traditional grinding devices in curved surface processing is solved. It achieves rapid installation, adaptive fitting to curved surfaces, and stable grinding, meeting the needs of modern manufacturing for high-precision and high-efficiency curved surface parts processing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HANGZHU (CHONGQING) INTELLIGENT TECH CO LTD
- Filing Date
- 2025-08-18
- Publication Date
- 2026-07-14
Smart Images

Figure CN224488739U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of polishing equipment technology, and more specifically, it relates to a polishing device for curved surface processing. Background Technology
[0002] With the rapid development of intelligent manufacturing technology, industries such as aerospace, automotive manufacturing, and precision mold making are placing higher demands on the machining accuracy and efficiency of curved parts. The complex geometry of curved parts, such as aircraft wings, automotive body panels, and medical implants, makes traditional machining methods insufficient. Robotic machining technology, with its high flexibility, high precision, and programmability, is gradually becoming a core technology in the field of curved surface machining. Robots can flexibly plan grinding and polishing paths through preset programs or offline programming, adapting to machining tasks with different curvatures and shapes. Simultaneously, combined with force control systems and visual sensing technology, robots can perceive the contact force and surface condition of parts in real time during the grinding and polishing process, ensuring the consistency and stability of grinding and polishing quality. Robot-based curved surface machining and polishing equipment integrates technologies from multiple disciplines such as mechanics, electronics, and control, not only improving processing efficiency and product quality but also reducing labor costs and intensity, becoming a key piece of equipment driving the intelligent transformation of the manufacturing industry.
[0003] Based on the above, most existing traditional grinding devices are designed for flat surface grinding. Even when grinding curved surfaces by adjusting the robot angle, there are still significant limitations. Because they require frequent angle adjustments to adapt to curved surfaces, the processing flow is cumbersome and inefficient. Furthermore, the requirements for robot angle adjustment are extremely high, making it difficult to meet the high-precision and high-efficiency processing needs of modern manufacturing for curved parts. Therefore, there is an urgent need for new grinding and polishing devices to be optimized and improved. Utility Model Content
[0004] To address the aforementioned technical problems, this utility model provides a grinding and polishing device for curved surface processing, which solves the problems of cumbersome processing procedures, low efficiency, and high requirements for robot angle adjustment functions in existing traditional grinding devices.
[0005] This utility model discloses a grinding and polishing device for curved surface processing, which is achieved by the following specific technical means:
[0006] A grinding and polishing device for curved surface processing includes a main frame, a rotary knob, a movable rod, a ring connector, a telescopic support rod, a tension spring, a lower clamping plate, and a telescopic sleeve. The main frame has six sets of threaded circular holes on its outer bottom. The rotary knob has a set of threaded circular heads on its upper part and is securely connected to the outer bottom of the main frame. The rotary knob has a set of square grooves at its bottom, and a set of circular connecting shafts is installed within these square grooves. The movable rod has a set of circular through holes on one side, and one side of the movable rod is rotatably connected to the square groove at the bottom of the rotary knob. The movable rod... A set of threaded round holes is provided on one side, and a set of threaded round heads is provided at the bottom of the lower clamping plate, and the bottom of the lower clamping plate is fastened to the threaded round holes on one side of the movable rod; the telescopic sleeve is threaded on the outside, and the ring connector is threaded inside, and the ring connector is fastened to the upper part of the outer side of the telescopic sleeve; the outer side of the ring connector is provided with six sets of threaded round holes, and six sets of connecting spring heads are fastened to the outer side of the ring connector; the pull rod spring is fixedly connected to one side of the connecting spring head; the telescopic sleeve is provided with a set of circular cavities inside, and the telescopic support rod is telescopically connected inside the telescopic sleeve.
[0007] Furthermore, the top outer side of the main frame is provided with threads, and a set of connecting devices is rotatably connected to the top outer side of the main frame; a set of threaded round holes is provided in the middle of the bottom of the main frame, and the top threaded round head of the telescopic connecting sleeve is fastened to the middle of the bottom of the main frame.
[0008] Furthermore, a set of telescopic springs is movably connected inside the circular cavity of the telescopic sleeve, and the bottom of the telescopic springs is movably connected to the top of the telescopic support rod; a set of fastening nuts is tightly connected to the bottom of the ring connector on the outside of the telescopic sleeve.
[0009] Furthermore, the bottom of the telescopic sleeve is provided with a set of connecting rings, and the bottom connecting rings of the telescopic sleeve are fitted with polishing paper.
[0010] Furthermore, the movable rod has a set of threaded round holes in the middle part, and a connecting spring head is fastened to the threaded round holes in the middle part of the movable rod. The connecting spring head fastened to the movable rod and the ring connector is movably connected by a pull rod spring.
[0011] Furthermore, a set of connecting blocks is provided in the middle of the lower clamping plate, and the upper clamping plate is rotatably connected to the middle connecting block of the lower clamping plate via a circular shaft. A set of clamping springs is supported and connected between the upper clamping plate and the lower clamping plate. Abrasive paper is clamped and connected to the head of the upper clamping plate and the lower clamping plate.
[0012] Compared with the prior art, the present invention has the following beneficial effects:
[0013] 1. This utility model, by setting up a connector, can quickly connect the device to the robot, enabling rapid maintenance and replacement, reducing downtime and improving efficiency.
[0014] 2. This utility model, by setting movable rods, allows each set of movable rods to change its angle through a rotating knob and a pull rod spring. The telescopic structure, which combines the telescopic support rod and the telescopic spring, enables the sanding paper to adaptively conform to different curved surfaces, reducing manual intervention and improving the efficiency of sanding and the adaptability to curved surface processing.
[0015] 3. This utility model, through the clamping structure of the upper clamping plate, lower clamping plate and clamping plate spring, allows for quick replacement of polishing paper. At the same time, the spring support ensures stable polishing pressure, guaranteeing the consistency and stability of polishing quality. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the main structure of the present invention.
[0017] Figure 2 This is a structural schematic diagram of the deformation device of this utility model.
[0018] Figure 3 This is a structural schematic diagram of the main body of this utility model viewed from below.
[0019] Figure 4 This is a cross-sectional structural diagram of the main body of this utility model.
[0020] Figure 5 This is a cross-sectional structural schematic diagram of the clamping plate device of this utility model.
[0021] In the diagram, the correspondence between component names and drawing numbers is as follows:
[0022] 1. Main frame; 2. Connector; 3. Rotary connecting button; 4. Movable rod; 5. Upper clamping plate; 6. Grinding paper; 7. Ring connector; 8. Telescopic support connecting rod; 9. Pull rod spring; 501. Lower clamping plate; 502. Clamping plate spring; 701. Tightening nut; 801. Telescopic connecting sleeve; 802. Telescopic spring; 901. Connecting spring head. Detailed Implementation
[0023] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.
[0024] Example:
[0025] As attached Figure 1 To be continued Figure 5 As shown:
[0026] This utility model provides a grinding and polishing device for curved surface processing, including a main frame 1, a rotary knob 3, a movable rod 4, a ring connector 7, a telescopic support rod 8, a tension spring 9, a lower clamping plate 501, and a telescopic connecting sleeve 801; the main frame 1 has six sets of threaded round holes on its bottom outer side, the rotary knob 3 has a set of threaded round heads on its upper part, and the rotary knob 3 is fastened to the bottom outer side of the main frame 1; the rotary knob 3 has a set of square grooves at its bottom, and a set of circular connecting shafts is provided in the square grooves at the bottom of the rotary knob 3; the movable rod 4 has a set of circular through holes on one side, and one side of the movable rod 4 is rotatably connected to the square grooves at the bottom of the rotary knob 3; the movable rod 4 A set of threaded round holes is provided on one side, and a set of threaded round heads is provided at the bottom of the lower clamping plate 501. The bottom of the lower clamping plate 501 is fastened to the threaded round holes on one side of the movable rod 4. The telescopic sleeve 801 is threaded on the outside, and the ring connector 7 is threaded inside. The ring connector 7 is fastened to the upper part of the outside of the telescopic sleeve 801. The ring connector 7 is provided with six sets of threaded round holes on the outside, and six sets of connecting spring heads 901 are fastened to the outside of the ring connector 7. The pull rod spring 9 is fixedly connected to one side of the connecting spring head 901. The telescopic sleeve 801 is provided with a set of circular cavities inside, and the telescopic support rod 8 is telescopically connected inside the telescopic sleeve 801.
[0027] The main frame 1 has a threaded top outer side, and a set of connecting devices 2 are rotatably connected to the top outer side of the main frame 1; a set of threaded round holes are provided in the middle of the bottom of the main frame 1, and the threaded round head of the telescopic sleeve 801 is fastened to the middle of the bottom of the main frame 1. The rotatable connection design between the top of the main frame 1 and the connecting device 2 facilitates flexible adaptation and installation of the device and the robot; the fastening connection between the bottom and the telescopic sleeve 801 ensures the stability of the device structure during the grinding and polishing operation, provides reliable support for the surface of the polishing paper 6, and ensures efficient operation of the grinding and polishing process.
[0028] The telescopic sleeve 801 has a set of telescopic springs 802 movably connected inside its circular cavity, and the bottom of the telescopic springs 802 is movably connected to the top of the telescopic support rod 8. The telescopic sleeve 801 is fastened to the bottom of the ring connector 7 with a set of nuts 701. The telescopic springs 802 and the telescopic support rod 8 cooperate to allow the polishing paper to adapt to different curved surfaces, ensuring uniform polishing pressure. The nuts 701 fasten the ring connector 7 and the telescopic sleeve 801 to prevent the components from loosening and to ensure the stability of the device operation and the polishing accuracy.
[0029] The telescopic sleeve 801 has a set of connecting rings at the bottom, and the bottom connecting rings of the telescopic sleeve 801 are fitted with polishing paper 6. The connecting rings at the bottom of the telescopic sleeve 801 are fitted with polishing paper 6, which enables quick installation and disassembly and improves replacement efficiency. At the same time, it firmly fixes the polishing paper, so that it maintains accurate position during the polishing process and ensures that the polishing effect on curved parts is uniform and stable.
[0030] The movable rod 4 has a set of threaded round holes in the middle, and a connecting spring head 901 is fastened to the threaded round holes in the middle of the movable rod 4. The connecting spring head 901 fastened to the movable rod 4 and the ring connector 7 is movably connected by a pull rod spring 9. The movable rod 4 and the ring connector 7 are connected by the connecting spring head 901 and the pull rod spring 9, which can flexibly adjust the angle of the movable rod so that the polishing paper 6 can adaptively conform to the curved surface. At the same time, the pull rod spring 9 provides buffering tension to ensure the stability of the polishing process and improve the accuracy and efficiency of curved surface processing.
[0031] The lower clamping plate 501 has a set of connecting blocks in the middle, and the upper clamping plate 5 is rotatably connected to the connecting blocks in the middle of the lower clamping plate 501 via a circular shaft. A set of clamping springs 502 is supported and connected between the upper clamping plate 5 and the lower clamping plate 501. Abrasive paper 6 is clamped and connected to the head of the upper clamping plate 5 and the lower clamping plate 501 via a circular shaft. With the help of the clamping springs 502, it can be quickly opened and closed to replace the abrasive paper 6, making the operation convenient. At the same time, the clamping springs 502 provide a stable clamping force to ensure that the abrasive paper 6 does not loosen during polishing, ensuring that the polishing operation is carried out continuously and stably.
[0032] The specific usage and function of this embodiment are as follows:
[0033] In this invention, the threaded main frame 1 on the outer side of the top of the polishing device is quickly installed onto the robot via the connecting device 2, enabling convenient connection and rapid replacement, reducing equipment maintenance downtime. During operation, the movable rod 4 rotates at multiple angles via the circular connecting shaft in the square groove at the bottom of the rotary knob 3. This, combined with the tension spring 9 between the movable rod 4 and the connecting spring head 901 on the ring connector 7, and the telescopic adjustment of the telescopic spring 802 inside the telescopic sleeve 801 and the telescopic support connecting rod 8, allows the polishing paper 6 to adaptively conform to various complex curved surfaces, eliminating the need for frequent robot angle adjustments and simplifying the processing flow. Simultaneously, the upper clamping plate 5 and the lower clamping plate 501 rotate through the circular shaft of the intermediate connecting block, and the clamping structure supported by the clamping spring 502 allows for quick loading and unloading of the polishing paper 6. The spring action ensures constant polishing pressure, effectively guaranteeing consistent polishing quality. In addition, the connecting ring at the bottom of the telescopic sleeve 801 holds the polishing paper 6, which works in conjunction with the telescopic support rod 8 to further enhance the adhesion between the polishing paper 6 and the curved surface, improve polishing efficiency and precision, and meet the high-precision and high-efficiency processing requirements of modern manufacturing for curved parts.
[0034] Any aspects of this utility model not described in detail are well-known technologies to those skilled in the art.
Claims
1. A grinding and polishing device for curved surface processing, characterized in that: It includes the main frame (1), rotary knob (3), movable rod (4), ring connector (7), telescopic support rod (8), pull rod spring (9), lower clamp plate (501) and telescopic sleeve (801). The main frame (1) has six sets of threaded round holes on its bottom outer side, and the rotating button (3) has a set of threaded round heads on its upper part, and the rotating button (3) is fastened to the bottom outer side of the main frame (1); the rotating button (3) has a set of square grooves at its bottom, and a set of round connecting shafts is provided in the square grooves at the bottom of the rotating button (3); the movable rod (4) has a set of round through holes on one side, and the movable rod (4) is rotatably connected to the square grooves at the bottom of the rotating button (3); the movable rod (4) has a set of threaded round holes on one side, and the lower clamping plate (501) has a set of threaded round heads at its bottom, and the lower clamping plate (501)... The bottom is fastened to the threaded round hole on one side of the movable rod (4); the telescopic sleeve (801) is threaded on the outside, the ring connector (7) is threaded inside, and the ring connector (7) is fastened to the upper part of the outside of the telescopic sleeve (801); the ring connector (7) is provided with six sets of threaded round holes on the outside, and six sets of connecting spring heads (901) are fastened to the outside of the ring connector (7); the pull rod spring (9) is fixedly connected to one side of the connecting spring head (901); the telescopic sleeve (801) is provided with a set of circular cavities inside, and the telescopic support rod (8) is telescopically connected inside the telescopic sleeve (801).
2. The grinding and polishing device for curved surface processing as described in claim 1, characterized in that: The main frame (1) has a thread on the top outer side, and a set of connecting devices (2) is rotatably connected to the top outer side of the main frame (1); a set of threaded round holes is provided in the middle of the bottom of the main frame (1), and the top threaded round head of the telescopic sleeve (801) is tightly connected to the middle of the bottom of the main frame (1).
3. The grinding and polishing device for curved surface processing as described in claim 1, characterized in that: A set of telescopic springs (802) is movably connected inside the circular cavity of the telescopic sleeve (801), and the bottom of the telescopic springs (802) is movably connected to the top of the telescopic support rod (8); a set of fastening nuts (701) is fastened to the bottom of the ring connector (7) on the outside of the telescopic sleeve (801).
4. The grinding and polishing device for curved surface processing as described in claim 1, characterized in that: The telescopic sleeve (801) has a set of connecting rings at the bottom, and the bottom connecting rings of the telescopic sleeve (801) are fitted with polishing paper (6).
5. A grinding and polishing device for curved surface processing as described in claim 1, characterized in that: The movable rod (4) has a set of threaded round holes in the middle part, and a connecting spring head (901) is fastened in the threaded round holes in the middle part of the movable rod (4). The connecting spring head (901) fastened on the movable rod (4) and the ring connector (7) is movably connected by the pull rod spring (9).
6. The grinding and polishing device for curved surface processing as described in claim 1, characterized in that: The lower clamping plate (501) is provided with a set of connecting blocks in the middle, and the upper clamping plate (5) is rotatably connected to the connecting blocks in the middle of the lower clamping plate (501) via a circular shaft. A set of clamping plate springs (502) is supported and connected between the upper clamping plate (5) and the lower clamping plate (501); polishing paper (6) is clamped and connected to the head of the upper clamping plate (5) and the lower clamping plate (501).