Machining mechanism for arc surface of precise metal piece
By designing a worm gear, worm wheel, and eccentric wheel, the automatic angle adjustment of the grinding roller is achieved, solving the problem of frequent angle changes or repositioning required in existing technologies, and improving the efficiency and ease of operation of arc surface processing.
Patent Information
- Application Number
- CN202422754233.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-12
- Publication Date
- 2025-12-02
- Estimated Expiration
- 2034-11-12
AI Technical Summary
Existing arc surface processing mechanisms require multiple changes to the grinding angle or repositioning, resulting in complex operation and low production efficiency.
A machining mechanism including a motor, worm gear, worm wheel, eccentric wheel and limiting components was designed. Through the meshing transmission of the worm gear and worm wheel and the design of the eccentric wheel, the grinding roller can adjust its angle and position by itself, so as to achieve efficient grinding without frequent angle changes or repositioning.
It significantly shortens the processing time for curved surfaces, simplifies the operation steps, improves production efficiency, and enhances ease of operation through the design of the rubber handle.
Smart Images
Figure CN223617428U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of metal parts processing technology, and in particular to a mechanism for machining the arc surface of precision metal parts. Background Technology
[0002] In modern product design, especially for products like mobile phone frames and back covers, rounded surfaces are becoming increasingly popular. Rounded surfaces offer a smooth and aesthetically pleasing visual experience, enhancing the overall design of the product. For example, rounded edges on the mobile phone frame make the phone more comfortable to hold and improve its feel. To achieve this beautiful and ergonomic design, specialized rounded surface processing mechanisms are needed to precisely machine the required rounded shapes.
[0003] In existing technologies, some arc surface processing mechanisms typically use grinding rollers to grind the arc surfaces of metal parts. Since it is impossible to flexibly process arc surfaces of different heights and shapes on metal parts by moving the grinding rollers up and down, it is necessary to change the grinding angle multiple times or reposition the metal parts to complete the grinding of the entire arc surface. This greatly increases the number of operation steps and processing time, and reduces production efficiency. Therefore, in order to address the above shortcomings, a mechanism for processing arc surfaces of precision metal parts is proposed. Utility Model Content
[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a precision metal part arc surface machining mechanism. This mechanism aims to improve the existing technology, which requires multiple changes in grinding angles or repositioning of metal parts to complete the grinding of arc surfaces of different heights and shapes, resulting in complex operation and reduced production efficiency.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a mechanism for machining the arc surface of precision metal parts, comprising a housing, a motor fixedly connected to the bottom left side of the housing, a worm gear fixedly connected to the drive end of the motor, a fixed rod fixedly connected to the top end of the worm gear, a limiting component for preventing deviation fixedly connected to the outside of the fixed rod, two bearing plates fixedly connected to the inside left side of the housing, a grinding roller slidably connected to the outside of the fixed rod, two support plates fixedly connected to the inside right side of the housing, a worm wheel rotatably connected to the adjacent side of the two support plates, a rotating rod fixedly connected inside the worm wheel, eccentric wheels fixedly connected to the front and rear sides of the rotating rod, a rotating ring fixedly connected to the outside of the eccentric wheels, a connecting rod fixedly connected to the top end of the rotating ring, a fixed block fixedly connected to the inside right end of the housing, and a connecting block rotatably connected to the outside of the fixed block.
[0006] Furthermore, a carrying plate is fixedly connected to both the front and rear sides of the box. Two fixed seats are fixedly connected to the top of the carrying plate. A rotating block is rotatably connected to the outside of the fixed seat. A handle is fixedly connected to the top of the rotating block. A connecting block is rotatably connected to the inside of the rotating block. A connecting rod is rotatably connected to the inside of the connecting block on the side closer to the box. A connecting clamp is fixedly connected to the inside of the connecting rod. A pressure head is fixedly connected to the bottom end of the connecting clamp.
[0007] Furthermore, the limiting assembly includes two limiting rods, with the adjacent sides of the two limiting rods respectively fixedly connected to the outside of the fixed rod, and two limiting holes are opened inside the bottom end of the grinding roller.
[0008] Furthermore, the limiting rod is externally slidably connected inside the limiting hole, the bottom end of the limiting rod contacts the top end of the top bearing plate, and the fixing rod is externally rotatably connected inside the top bearing plate.
[0009] Furthermore, the upper and lower sides of the worm are rotatably connected to the adjacent sides of the two bearing plates, and the worm and the worm wheel are meshed together.
[0010] Furthermore, the outer side of the rotating rod is rotatably connected to the inner side of the two support plates, and the adjacent side of the two eccentric wheels is rotatably connected to the distant side of the two support plates.
[0011] Furthermore, the two connecting rods are rotatably connected to the outer middle of the connecting block on their adjacent sides, and the connecting block is rotatably connected to the outside of the grinding roller on the side away from the fixed block.
[0012] Furthermore, the side of the connecting rod furthest from the housing is rotatably connected to the inside of the fixed seat, and the handle is made of rubber.
[0013] This utility model has the following beneficial effects:
[0014] 1. In this utility model, while the starting motor drives the grinding roller to rotate, the rotation of the worm gear also causes the grinding roller to move up and down. It can adjust itself during the grinding process without frequently changing the angle or repositioning the metal parts, thus avoiding the time wasted due to repositioning and other operations. This significantly shortens the processing time of the entire arc surface, greatly simplifies the operation steps, and improves production efficiency.
[0015] 2. In this utility model, by pulling the handle, the rotating block rotates outside the fixed seat, while driving the connecting block to rotate inside the fixed seat, thereby causing the pressure head to press the metal part. Operators do not need complicated operating procedures or professional skills training to quickly fix the metal part, increasing the convenience of operation. Attached Figure Description
[0016] Figure 1 This is a perspective view of a precision metal part arc surface machining mechanism proposed in this utility model;
[0017] Figure 2 This is a schematic diagram of a box structure for a precision metal part arc surface machining mechanism proposed in this utility model;
[0018] Figure 3 for Figure 2 Enlarged view of point A in the image;
[0019] Figure 4 for Figure 2 Enlarged view of point B in the image.
[0020] Legend:
[0021] 1. Housing; 2. Motor; 3. Worm gear; 4. Fixed rod; 5. Limiting rod; 6. Bearing plate; 7. Grinding roller; 8. Limiting hole; 9. Support plate; 10. Worm wheel; 11. Rotating rod; 12. Eccentric wheel; 13. Rotating ring; 14. Connecting rod; 15. Fixed block; 16. Connecting block; 17. Carrying plate; 18. Fixed seat; 19. Rotating block; 20. Handle; 21. Connecting block; 22. Connecting rod; 23. Connecting clamp rod; 24. Pressure head. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. 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.
[0023] Reference Figures 1 to 3This utility model provides an embodiment of a precision metal part arc surface machining mechanism, comprising a housing 1, which serves as the outer shell of the entire device, supporting and protecting the internal structure. A motor 2 is fixedly connected to the bottom left side of the housing 1. The motor 2 is the power source of the entire device, converting electrical energy into mechanical energy to power subsequent grinding and movement operations. A worm gear 3 is fixedly connected to the drive end of the motor 2. When the motor 2 starts, its drive end drives the worm gear 3 to rotate. A fixed rod 4 is fixedly connected to the top of the worm gear 3, allowing the fixed rod 4 to rotate synchronously when the worm gear 3 rotates.
[0024] The fixed rod 4 is externally fixedly connected to a limiting assembly for preventing deviation. This limiting assembly includes two limiting rods 5, with their adjacent sides fixedly connected to the outside of the fixed rod 4 to ensure the stability of the connection between the limiting rods 5 and the fixed rod 4. Two limiting holes 8 are opened inside the bottom end of the grinding roller 7. The outer side of the limiting rod 5 is slidably connected to the inside of the limiting holes 8. This sliding connection allows the limiting rod 5 to slide relative to the limiting hole 8 when the fixed rod 4 rotates. Simultaneously, the bottom end of the limiting rod 5 contacts the top end of the top support plate 6, which provides support and limits the range of movement of the limiting rod 5. The fixed rod 4 is externally rotatably connected to the inside of the top support plate 6. Two support plates 6 are fixedly connected to the left side of the inside of the housing 1. The upper and lower sides of the worm gear 3 are rotatably connected to the adjacent sides of the two support plates 6. The support plates 6 provide support and a stable rotation environment for the rotation of the worm gear 3 and the fixed rod 4.
[0025] A grinding roller 7 is slidably connected to the outside of the fixed rod 4. The grinding roller 7 is a key component used for grinding the arc surface of metal parts. Two support plates 9 are fixedly connected to the inside right side of the housing 1. The support plates 9 are used to support and fix other components. A worm gear 10 is rotatably connected to the adjacent side of the two support plates 9. The worm 3 and the worm gear 10 are meshed, allowing the rotation of the worm 3 to be transmitted to the worm gear 10, thereby driving the worm gear 10 to rotate. A rotating rod 11 is fixedly connected inside the worm gear 10. The rotating rod 11 is rotatably connected to the inside of the two support plates 9. The support plates 9 provide rotational support points for the rotating rod 11. When the worm gear 10 rotates, the rotating rod 11 can rotate accordingly.
[0026] Eccentric wheels 12 are fixedly connected to both the front and rear sides of the rotating rod 11. The eccentric wheels 12 are fixedly connected to the rotating rod 11 to ensure that they can rotate synchronously. The adjacent sides of the two eccentric wheels 12 are respectively rotatably connected to the distant sides of the two support plates 9. The support plates 9 provide connection and support for the rotation of the eccentric wheels 12. A rotating ring 13 is fixedly connected to the outside of the eccentric wheel 12. The rotating ring 13 rotates with the rotation of the eccentric wheel 12. A connecting rod 14 is fixedly connected to the top of the rotating ring 13. When the rotating ring 13 rotates, the connecting rod 14 will move together with the rotating ring 13.
[0027] A fixing block 15 is fixedly connected to the right end of the inner side of the housing 1. The fixing block 15 serves to fix and support the structure. A connecting block 16 is rotatably connected to the outside of the fixing block 15. The adjacent sides of the two connecting rods 14 are rotatably connected to the outer middle of the connecting block 16. This rotatable connection allows the movement of the connecting rods 14 to be transmitted to the connecting block 16. The side of the connecting block 16 away from the fixing block 15 is rotatably connected to the outside of the grinding roller 7. Thus, the movement of the connecting rods 14 drives the grinding roller 7 to move up and down.
[0028] Reference Figure 1 , Figure 2 and Figure 4 The front and rear sides of the housing 1 are fixedly connected to a carrying plate 17, which is used to place metal parts. Two fixed seats 18 are fixedly connected to the top of the carrying plate 17, serving as the connection base for subsequent operating components. A rotating block 19 is rotatably connected to the outside of the fixed seat 18, allowing it to rotate around the fixed seat 18. A handle 20, made of rubber, is fixedly connected to the top of the rotating block 19, increasing the comfort and friction for the operator's hands and facilitating operation. A connecting block 21 is rotatably connected inside the rotating block 19, enabling the connecting block 21 to move accordingly when the rotating block 19 rotates.
[0029] A connecting rod 22 is rotatably connected to the side of the connecting block 21 closest to the housing 1. The connecting rod 22 can rotate under the drive of the connecting block 21. The side of the connecting rod 22 furthest from the housing 1 is rotatably connected to the inside of the fixed seat 18. This rotatable connection allows the connecting rod 22 to rotate within the fixed seat 18. A connecting clamp rod 23 is fixedly connected inside the connecting rod 22. The connecting clamp rod 23 moves as the connecting rod 22 rotates. A pressure head 24 is fixedly connected to the bottom end of the connecting clamp rod 23. When the connecting clamp rod 23 moves, the pressure head 24 can press the metal part, thereby facilitating the grinding operation of the arc surface of the metal part.
[0030] Working principle: First, motor 2 is started, driving worm 3 to rotate. Since worm 3 and worm wheel 10 are meshed, the rotation of worm 3 drives worm wheel 10 to rotate. At the same time, the fixed rod 4, which is fixedly connected to the top of worm 3, also rotates. The grinding roller 7 outside the fixed rod 4 begins to rotate under the drive of the fixed rod 4. Furthermore, the limiting rod 5 in the limiting assembly outside the fixed rod 4 slides within the limiting hole 8 at the bottom of the grinding roller 7, preventing the grinding roller 7 from shifting and ensuring stable rotation of the grinding roller 7.
[0031] When the worm gear 10 rotates, the rotating rod 11 fixed inside it also rotates, and the eccentric wheels 12 fixed on the front and rear sides of the rotating rod 11 rotate accordingly. The rotating ring 13 outside the eccentric wheel 12 rotates with the rotation of the eccentric wheel 12, and the connecting rod 14 at the top of the rotating ring 13 moves with the rotation of the rotating ring 13. The movement of the connecting rod 14 will drive the connecting block 16 rotatably connected to it to rotate. The side of the connecting block 16 away from the fixed block 15 is rotatably connected to the outside of the grinding roller 7, thereby causing the grinding roller 7 to move up and down while rotating, realizing efficient grinding of the arc surface of the metal part.
[0032] When it is necessary to fix the metal part, the operator pulls the handle 20. The handle 20 drives the rotating block 19 to rotate outside the fixed seat 18. The rotation of the rotating block 19 causes the connecting block 21 inside it to move. The movement of the connecting block 21 causes the connecting rod 22 inside it to rotate inside one side of the fixed seat 18. The connecting clamp 23 fixed inside the connecting rod 22 moves with the rotation of the connecting rod 22. The pressure head 24 at the bottom of the connecting clamp 23 presses the metal part under the action of the connecting clamp 23, thereby facilitating the grinding operation of the arc surface of the metal part.
[0033] Working principle: First, motor 2 is started, driving worm 3 to rotate. Since worm 3 and worm wheel 10 are meshed, the rotation of worm 3 drives worm wheel 10 to rotate. At the same time, the fixed rod 4, which is fixedly connected to the top of worm 3, also rotates. The grinding roller 7 outside the fixed rod 4 begins to rotate under the drive of the fixed rod 4. Furthermore, the limiting rod 5 in the limiting assembly outside the fixed rod 4 slides within the limiting hole 8 at the bottom of the grinding roller 7, preventing the grinding roller 7 from shifting and ensuring stable rotation of the grinding roller 7.
[0034] When the worm gear 10 rotates, the rotating rod 11 fixed inside it also rotates, and the eccentric wheels 12 fixed on the front and rear sides of the rotating rod 11 rotate accordingly. The rotating ring 13 outside the eccentric wheel 12 rotates with the rotation of the eccentric wheel 12, and the connecting rod 14 at the top of the rotating ring 13 moves with the rotation of the rotating ring 13. The movement of the connecting rod 14 will drive the connecting block 16 rotatably connected to it to rotate. The side of the connecting block 16 away from the fixed block 15 is rotatably connected to the outside of the grinding roller 7, thereby causing the grinding roller 7 to move up and down while rotating, realizing efficient grinding of the arc surface of the metal part.
[0035] When it is necessary to fix the metal part, the operator pulls the handle 20. The handle 20 drives the rotating block 19 to rotate outside the fixed seat 18. The rotation of the rotating block 19 causes the connecting block 21 inside it to move. The movement of the connecting block 21 causes the connecting rod 22 inside it to rotate inside one side of the fixed seat 18. The connecting clamp 23 fixed inside the connecting rod 22 moves with the rotation of the connecting rod 22. The pressure head 24 at the bottom of the connecting clamp 23 presses the metal part under the action of the connecting clamp 23, thereby facilitating the grinding operation of the arc surface of the metal part.
[0036] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A mechanism for machining the arc surface of precision metal parts, comprising a housing (1), characterized in that: A motor (2) is fixedly connected to the bottom left side of the inner side of the housing (1). A worm gear (3) is fixedly connected to the drive end of the motor (2). A fixing rod (4) is fixedly connected to the top end of the worm gear (3). A limiting component for preventing deviation is fixedly connected to the outside of the fixing rod (4). Two bearing plates (6) are fixedly connected to the inside left side of the housing (1). A grinding roller (7) is slidably connected to the outside of the fixing rod (4). Two support plates (9) are fixedly connected to the inside right side of the housing (1). A worm gear (10) is rotatably connected to one side of the support plate (9). A rotating rod (11) is fixedly connected inside the worm gear (10). An eccentric wheel (12) is fixedly connected to both the front and rear sides of the rotating rod (11). A rotating ring (13) is fixedly connected to the outside of the eccentric wheel (12). A connecting rod (14) is fixedly connected to the top of the rotating ring (13). A fixing block (15) is fixedly connected to the right end of the box (1). A connecting block (16) is rotatably connected to the outside of the fixing block (15).
2. The mechanism for machining the arc surface of precision metal parts according to claim 1, characterized in that: The front and rear sides of the box (1) are fixedly connected to a carrying plate (17). The top of the carrying plate (17) is fixedly connected to two fixed seats (18). The outside of the fixed seat (18) is rotatably connected to a rotating block (19). The top of the rotating block (19) is fixedly connected to a handle (20). The inside of the rotating block (19) is rotatably connected to a connecting block (21). The side of the connecting block (21) closest to the box (1) is rotatably connected to a connecting rod (22). The inside of the connecting rod (22) is fixedly connected to a connecting clamp rod (23). The bottom end of the connecting clamp rod (23) is fixedly connected to a pressure head (24).
3. The mechanism for machining the arc surface of precision metal parts according to claim 1, characterized in that: The limiting assembly includes two limiting rods (5), with the adjacent sides of the two limiting rods (5) respectively fixedly connected to the outside of the fixed rod (4), and two limiting holes (8) are opened inside the bottom end of the grinding roller (7).
4. A mechanism for machining the arc surface of precision metal parts according to claim 3, characterized in that: The limiting rod (5) is externally slidably connected to the inside of the limiting hole (8), the bottom end of the limiting rod (5) is in contact with the top end of the top bearing plate (6), and the fixing rod (4) is externally rotatably connected to the inside of the top bearing plate (6).
5. A mechanism for machining the arc surface of precision metal parts according to claim 1, characterized in that: The upper and lower sides of the worm (3) are rotatably connected to the adjacent sides of the two bearing plates (6), and the worm (3) and the worm wheel (10) are meshed.
6. A mechanism for machining the arc surface of precision metal parts according to claim 1, characterized in that: The outside of the rotating rod (11) is rotatably connected to the inside of the two support plates (9), and the close side of the two eccentric wheels (12) is rotatably connected to the far side of the two support plates (9).
7. A mechanism for machining the arc surface of precision metal parts according to claim 1, characterized in that: The two connecting rods (14) are rotatably connected to the outer middle of the connecting block (16) on their adjacent sides, and the connecting block (16) is rotatably connected to the outside of the grinding roller (7) on the side away from the fixed block (15).
8. A mechanism for machining the arc surface of precision metal parts according to claim 2, characterized in that: The connecting rod (22) is rotatably connected to the inside of the fixed seat (18) on the side away from the box (1), and the handle (20) is made of rubber.