Speed reducer for mobile phone mirror flat grinding equipment
By introducing a speed reducer with a five-point support and observation mechanism into the mobile phone mirror polishing equipment, the problem of uneven mirror surface caused by the shaking of the grinding wheel is solved, realizing the stability of the equipment and the visual monitoring of the polishing progress, and improving the gloss and feel of the mirror surface.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGDONG ZHUOHONGDA INTELLIGENT TRANSMISSION TECH CO LTD
- Filing Date
- 2025-07-21
- Publication Date
- 2026-06-19
AI Technical Summary
During the grinding process of mobile phone mirrors, the grinding wheel is prone to shaking when the reducer is held by hand, which can cause unevenness of the mirror surface, affecting the gloss and feel.
A speed reducer including a support mechanism and an observation mechanism was designed. The support mechanism improves the stability of the equipment through five-point support and rolling balls, while the observation mechanism helps workers monitor the grinding progress in real time through L-shaped reflective lenses and triangular refractive glass.
It effectively prevents the grinding wheel from tilting during movement, ensuring a flat mirror surface, reducing equipment shaking and noise, and improving the stability and efficiency of the grinding process.
Smart Images

Figure CN224373651U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of mobile phone mirror surface grinding technology, specifically to a speed reducer used in mobile phone mirror surface grinding equipment. Background Technology
[0002] Mobile phone mirror polishing is a precision surface processing technology, mainly used for the flat surface treatment of mobile phone glass covers, such as screen protection glass, back cover glass, or metal frame components. Its core purpose is to achieve a mirror effect with high flatness and low roughness through grinding technology. However, untreated glass or metal surfaces have a large number of micro-bumps and unevenness, which not only affects the uniformity of light reflection, but also reduces the smoothness of the touch.
[0003] To ensure the flatness of the glass cover of a mobile phone, workers use a surface grinder to polish the glass cover. Because the surface grinding requires a high degree of precision, the stability of the grinding wheel during the grinding process is crucial. However, when workers use a handheld drive device with a speed reducer to perform the grinding, slight vibrations can easily cause the grinding wheel to tilt, resulting in an uneven surface and affecting the gloss of the mobile phone glass cover. Utility Model Content
[0004] This utility model provides a speed reducer for a mobile phone mirror surface grinding equipment, which solves the problems mentioned in the background art.
[0005] To solve the above-mentioned technical problems, the technical solution of this utility model is as follows:
[0006] This utility model provides a speed reducer for a mobile phone mirror grinding device, comprising:
[0007] A motor and a speed reducer assembly, wherein the speed reducer assembly is disposed at the output end of the motor, and the speed reducer assembly includes a speed reducer housing fixedly connected to the surface of the motor;
[0008] A support mechanism is provided on the surface of the motor and reducer housing. The support mechanism includes a support rod, an adjusting screw, and a base block. The support rod is rotatably connected to the motor and reducer housing, the adjusting screw is rotatably connected to the base block, and the inner wall of the base block is provided with rolling balls.
[0009] Among them: two sets of support mechanisms are set on the surface of the motor, and three sets of support mechanisms are set on the surface of the reducer housing;
[0010] An observation mechanism is provided on the surface of the base block. The observation mechanism includes an L-shaped reflective mirror and a triangular refractive glass, and the L-shaped reflective mirror and the triangular refractive glass are fixedly connected.
[0011] Among them, the two sets of observation mechanisms are respectively set on the surface of the two base blocks.
[0012] Furthermore, the support mechanism also includes an adapter block, which is fixedly connected to the housing of the motor and the reducer, and is rotatably connected to the support rod. One end of the support rod is fixedly connected to a fixing block, which is threadedly connected to an adjusting screw. A circular shell is rolledly connected to the inner wall of the base block, and the ball bearings roll on the inner wall of the circular shell.
[0013] Furthermore, the reducer device also includes a worm gear, which is rotatably connected to the reducer housing. A transmission gear is fixedly connected to the surface of the worm gear. A drive gear is fixedly connected to the output end of the motor. The drive gear meshes with the transmission gear. A worm wheel is rotatably connected to the inner wall of the reducer housing. The tooth surface of the worm wheel meshes with the teeth of the worm gear. A grinding wheel is detachably mounted on one end of the worm wheel.
[0014] Furthermore, the observation mechanism also includes a rotating fastener, which is rotatably connected to the base block and fixedly connected to the L-shaped reflector. A fixing screw is threadedly connected to the inner wall of the rotating fastener, a pressure block is rotatably connected to one end of the fixing screw, and a tightening block is fixedly connected to the other end of the fixing screw.
[0015] Furthermore, a rotating rod is slidably connected to the inner wall of the adjusting screw, and a limiting rod is slidably connected to the inner wall of the fixing block. The limiting rod is fixedly connected to the base block and rotatably connected to the adjusting screw.
[0016] Furthermore, a torsion spring is fixedly connected to one end of the support rod, and a circular ring plate is fixedly connected to one end of the torsion spring. A locking block is fixedly connected to the inner wall of the adapter block, and the torsion spring and the circular ring plate rotate within the inner wall of the adapter block.
[0017] Furthermore, the surface of the limiting rod is provided with a graduated groove.
[0018] The above-described solution of this utility model has at least the following beneficial effects:
[0019] This utility model, by setting up a support mechanism, enables the worker to perform parallel polishing of mobile phone lenses with a handheld reducer. With the support of five fulcrums and rolling balls at the bottom, the grinding wheel is not prone to tilting during the process of moving the handheld device to polish the mobile phone mirror surface. This avoids unevenness of the mobile phone mirror surface due to excessive shaking.
[0020] This invention, by setting up an observation mechanism, allows workers to see the state of the grinding wheel polishing the mobile phone mirror surface through the refraction of the L-shaped reflective lens, thus making it easier for workers to judge the progress of the mobile phone mirror surface polishing operation. Attached Figure Description
[0021] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below.
[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0023] Figure 2 This is a schematic diagram of the overall operating structure of this utility model;
[0024] Figure 3 This is a cross-sectional structural diagram of the reducer housing of this utility model;
[0025] Figure 4 This is a disassembled structural diagram of the support mechanism of this utility model;
[0026] Figure 5 This is a utility model Figure 4 A schematic diagram of the structure at the adapter block;
[0027] Figure 6 This is a utility model Figure 4 Enlarged view of point A;
[0028] Figure 7 This is a utility model Figure 4 A schematic diagram of the structure of the L-shaped reflective lens.
[0029] Explanation of reference numerals in the attached figures:
[0030] 1. Motor; 2. Reducer; 21. Reducer housing; 22. Drive gear; 23. Transmission gear; 24. Worm; 25. Worm wheel; 3. Support mechanism; 301. Support rod; 302. Adapter block; 303. Adjusting screw; 304. Fixing block; 305. Limiting rod; 306. Rotating rod; 307. Base block; 308. Scale groove; 309. Round shell; 310. Ball bearing; 311. Rubber ring; 312. Torsion spring; 313. Circular ring plate; 314. Locking block; 4. Observation mechanism; 41. L-shaped reflector; 42. Triangular refractive glass; 43. Rotating fastener; 44. Pressure block; 45. Fixing screw; 46. Tightening block; 5. Grinding wheel. Detailed Implementation
[0031] To enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.
[0032] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly set on the other component; when a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to the other component.
[0033] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.
[0034] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" or "several" means two or more, unless otherwise explicitly specified.
[0035] It should be noted that the structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which this application can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size should still fall within the scope of the technical content disclosed in this application, provided that they do not affect the effects and purposes that this application can produce.
[0036] Example
[0037] like Figures 1 to 7As shown, an embodiment of this utility model provides a reducer for a mobile phone mirror polishing device, including: a motor 1 and a reducer device 2, the reducer device 2 being disposed at the output end of the motor 1, the reducer device 2 including a reducer housing 21 fixedly connected to the surface of the motor 1; a support mechanism 3, the support mechanism 3 being disposed on the surface of the motor 1 and the reducer housing 21, the support mechanism 3 including a support rod 301, an adjusting screw 303 and a base block 307, the support rod 301 being rotatably connected to the motor 1 and the reducer housing 21, the adjusting screw 303 being rotatably connected to the base block 307, and ball bearings 310 rolling on the inner wall of the base block 307; two sets of support mechanisms 3 being disposed on the surface of the motor 1, and three sets of support mechanisms 3 being disposed on the surface of the reducer housing 21; an observation mechanism 4, the observation mechanism 4 being disposed on the surface of the base block 307, the observation mechanism 4 including an L-shaped reflective lens 41 and a triangular refractive glass 42, the L-shaped reflective lens 41 and the triangular refractive glass 42 being fixedly connected; two sets of observation mechanisms 4 being disposed on the surfaces of two base blocks 307 respectively.
[0038] like Figures 4 to 6As shown, support mechanism 3 is installed on the surface of motor 1 and reducer housing 21. Support mechanism 3 includes support rod 301, adjusting screw 303, and base block 307. Support rod 301 is rotatably connected to reducer housing 21 and motor 1. Adjusting screw 303 is rotatably connected to base block 307. Ball bearings 310 roll on the inner wall of base block 307. Two sets of support mechanisms 3 are installed on the surface of motor 1, and three sets of support mechanisms 3 are installed on the surface of reducer housing 21. The operator needs to continuously move the grinding wheel 5. To prevent the grinding wheel 5 from tilting when moving, the operator can extend multiple support rods 301 and then change the height of the bottom base block 307 by rotating the adjusting screw 303, thus adjusting the distance between the grinding wheel 5 and the operator's hand. The distance and gap between the glass cover plates allow the worker to move the grinding equipment horizontally. The base block 307 supports the entire motor 1 and reducer. The support mechanism 3 also includes a transition block 302, which is fixedly connected to the motor 1 and reducer housing 21. The transition block 302 is rotatably connected to the support rod 301. One end of the support rod 301 is fixedly connected to a fixing block 304, which is threadedly connected to an adjusting screw 303. A round shell 309 is rolled on the inner wall of the base block 307. Ball bearings 310 roll on the inner wall of the round shell 309. When the equipment moves, the ball bearings 310 inside the base block 307 roll, making the equipment move smoothly. There is a gap between the round shell 309 and the base block 307, which is supported by multiple rubber bushings. The rubber ring 311 provides cushioning, allowing vibrations to be directly transmitted to the processing table during operation, preventing resonance and severe equipment vibration. This results in lower noise and smoother operation during grinding. A rotating rod 306 is slidably connected to the inner wall of the adjusting screw 303, and a limiting rod 305 is slidably connected to the inner wall of the fixed block 304. The limiting rod 305 is fixedly connected to the foot block 307 and rotatably connected to the adjusting screw 303. Because the ball bearings 310 roll during translation, the foot block 307 may rotate with the adjusting screw 303. The limiting rod 305 locks this rotation, preventing the foot block 307 from interfering with the adjusting screw 303 during translation. The rotation between 03 prevents the adjusting screw 303 from rotating arbitrarily due to external forces. One end of the support rod 301 is fixedly connected to a torsion spring 312, and one end of the torsion spring 312 is fixedly connected to a circular ring plate 313. The inner wall of the adapter block 302 is fixedly connected to a locking block 314, and the torsion spring 312 and the circular ring plate 313 rotate on the inner wall of the adapter block 302. When folding the support rod 301, the torsion spring 312 is compressed, and the support rod 301 is quickly rotated to the other side of the locking block 314, so that the support rod 301 can be quickly folded, which is convenient for the operator. The surface of the limit rod 305 is provided with a scale groove 308. By observing the scale groove 308, the operator can easily adjust the height of multiple sets of adjusting screws 303 synchronously.
[0039] like Figure 7 As shown, the observation mechanism 4 is mounted on the surface of the base block 307. The observation mechanism 4 includes an L-shaped reflective mirror 41 and a triangular refractive glass 42. The L-shaped reflective mirror 41 and the triangular refractive glass 42 are fixedly connected. Two sets of observation mechanisms 4 are respectively mounted on the surfaces of the two base blocks 307. By rotating the L-shaped reflective mirror 41, the L-shaped reflective mirror 41 is adjusted to be aligned with the grinding wheel 5. Relying on the triangular refractive glass 42, the reflected image is projected from the reflective mirror parallel to the tabletop, and the staff can observe it from a top-down angle. In the mirror-polished state, the observation mechanism 4 also includes a rotating fastener 43, which is rotatably connected to the base block 307 and fixedly connected to the L-shaped reflective lens 41. The inner wall of the rotating fastener 43 is threaded with a fixing screw 45. One end of the fixing screw 45 is rotatably connected to a pressure block 44, and the other end of the fixing screw 45 is fixedly connected to a screwing block 46. By rotating the fixing screw 45 through the screwing block 46, the pressure plate is pressed against the surface of the base block 307, thereby fixing the rotating fastener 43 and thus fixing the L-shaped reflective lens 41.
[0040] like Figure 3 As shown, the speed reducer 2 is located at the output end of the motor 1. The speed reducer 2 includes a speed reducer housing 21 fixedly connected to the surface of the motor 1, which contains multiple sets of parts for transmission, thereby achieving a speed reduction effect. The speed reducer 2 also includes a worm 24, which is rotatably connected to the speed reducer housing 21. A transmission gear 23 is fixedly connected to the surface of the worm 24. A drive gear 22 is fixedly connected to the output end of the motor 1, and the drive gear 22 meshes with the transmission gear 23. A worm wheel 25 is rotatably connected to the inner wall of the speed reducer housing 21. The tooth surface of the worm wheel 25 meshes with the teeth of the worm 24. A grinding wheel 5 is detachably mounted on one end of the worm wheel 25. When the motor 1 is running, the worm 24 rotates due to the meshing between the drive gear 22 and the transmission gear 23. Due to the change in transmission efficiency between the tooth surface of the worm wheel 25 and the teeth of the worm 24, a speed ratio of 4:1 is achieved, thereby reducing the output speed but increasing the output torque.
[0041] In this embodiment of the invention, when performing a surface grinding operation on the mirror surface of a mobile phone glass cover, the operator first needs to install a larger-grained grinding wheel 5 onto the output end of the reducer to perform preliminary grinding on the mirror surface of the mobile phone glass cover. Then, a smaller-grained grinding wheel 5 is used for secondary surface grinding. During the surface grinding process, to ensure uniform grinding of every part of the mirror surface, the operator needs to continuously move the grinding wheel 5. To prevent the grinding wheel 5 from tilting during movement, the operator can extend multiple support rods 301. Then, by rotating the adjusting screw 303, the height of the bottom foot block 307 can be changed, adjusting the distance and gap between the grinding wheel 5 and the mobile phone glass cover. By rotating the L-shaped reflective lens 41, the L-shaped reflective lens 41 is adjusted to align with the grinding wheel 5. Finally, by rotating the fixing screw 45 using the screw block 46, the pressure is applied... The plate rests against the surface of the base block 307, thereby fixing the rotating fastener 43 and the L-shaped reflective mirror 41. Relying on the triangular refractive glass 42, the reflected image is projected onto the reflective mirror parallel to the tabletop. The operator can observe the mirror surface grinding status from a top-down angle. When the operator moves the grinding equipment, the base block 307 supports the motor 1 and reducer. When the equipment moves, the ball bearings 310 inside the base block 307 roll, making the equipment move smoothly. There is a gap between the round shell 309 and the base block 307, which is buffered by multiple rubber rings 311. During the operation of the equipment, the vibration is directly transmitted to the processing tabletop, forming resonance and causing severe vibration of the equipment. Therefore, the noise of the equipment is low and the operation is stable during the grinding process.
[0042] The electronic devices provided in the embodiments of this application have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this application. The descriptions of the embodiments above are only for the purpose of helping to understand this application. Furthermore, those skilled in the art will recognize that, based on the ideas of this application, there will be changes in the specific implementation methods and application scope. Therefore, the content of this specification should not be construed as a limitation of this application.
Claims
1. A speed reducer used in a mobile phone mirror surface grinding equipment, characterized in that, include: The motor (1) and the speed reducer (2) are provided at the output end of the motor (1). The speed reducer (2) includes a speed reducer housing (21) fixedly connected to the surface of the motor (1). A support mechanism (3) is provided on the surface of the motor (1) and the reducer housing (21). The support mechanism (3) includes a support rod (301), an adjusting screw (303), and a base block (307). The support rod (301) is rotatably connected to the motor (1) and the reducer housing (21). The adjusting screw (303) is rotatably connected to the base block (307). The inner wall of the base block (307) is provided with rolling balls (310). An observation mechanism (4) is set on the surface of a base block (307). The observation mechanism (4) includes an L-shaped reflective mirror (41) and a triangular refractive glass (42). The L-shaped reflective mirror (41) and the triangular refractive glass (42) are fixedly connected. Among them: the support mechanism (3) is set in five groups, two groups are set on the surface of the motor (1), the other three groups of support mechanism (3) are set on the surface of the reducer housing (21), and the two groups of observation mechanism (4) are set on the surface of the two foot blocks (307) respectively.
2. The reduction gear for a cell phone mirror surface polishing apparatus according to claim 1, characterized by The support mechanism (3) further includes a transition block (302), which is fixedly connected to the motor (1) and the reducer housing (21). The transition block (302) is rotatably connected to the support rod (301). One end of the support rod (301) is fixedly connected to a fixing block (304), which is threadedly connected to the adjusting screw (303). The inner wall of the foot block (307) is rolled with a round shell (309), and the ball bearing (310) rolls on the inner wall of the round shell (309).
3. The speed reducer for a cell phone mirror surface polishing apparatus according to claim 1, wherein The speed reducer device (2) also includes a worm (24), which is rotatably connected to the speed reducer housing (21). A transmission gear (23) is fixedly connected to the surface of the worm (24). A drive gear (22) is fixedly connected to the output end of the motor (1). The drive gear (22) meshes with the transmission gear (23). A worm wheel (25) is rotatably connected to the inner wall of the speed reducer housing (21). The tooth surface of the worm wheel (25) meshes with the teeth of the worm (24). A grinding wheel (5) is detachably installed at one end of the worm wheel (25).
4. The reducer for the mobile phone mirror surface grinding equipment according to claim 1, characterized in that, The observation mechanism (4) also includes a rotating fastener (43), which is rotatably connected to the base block (307) and fixedly connected to the L-shaped reflector (41). The inner wall of the rotating fastener (43) is threaded with a fixing screw (45), one end of the fixing screw (45) is rotatably connected to a pressure block (44), and the other end of the fixing screw (45) is fixedly connected to a screwing block (46).
5. The reduction gear for the cell phone mirror surface polishing apparatus according to claim 2, wherein The inner wall of the adjusting screw (303) is slidably connected to a rotating rod (306), and the inner wall of the fixing block (304) is slidably connected to a limiting rod (305). The limiting rod (305) is fixedly connected to the base block (307), and the limiting rod (305) is rotatably connected to the adjusting screw (303).
6. The speed reducer for a cell phone mirror surface polishing apparatus according to claim 2, wherein One end of the support rod (301) is fixedly connected to a torsion spring (312), and one end of the torsion spring (312) is fixedly connected to a ring plate (313). The inner wall of the adapter block (302) is fixedly connected to a locking block (314), and the torsion spring (312) and the ring plate (313) rotate on the inner wall of the adapter block (302).
7. The reduction gear for a cell phone mirror surface polishing apparatus according to claim 5, wherein The surface of the limiting rod (305) is provided with a scale groove (308).