Lower main shaft assembly of multi-station sheet polishing machine

Abstract

The utility model provides a lower main shaft assembly of a multi-station sheet polishing machine, which comprises a supporting table, a central supporting flange is arranged on the supporting table, and a large-station rotating flange plate is arranged in the central supporting flange through a first bearing pack; a large drive duplicate gear is arranged on the outer side of the top of the center supporting flange through a second bearing. A third bearing set is further arranged between the large station rotating flange plate and the large driving duplicate gear. A large-station flange lower gear is arranged at the bottom end of the large-station rotating flange plate; the lower main shaft assembly further comprises a station driving assembly and a planet driving assembly. According to the structure, the large-station rotating flange plate and the large driving duplicate gear can be stably and reliably fixed through the multiple bearing sets, and the large-station flange lower gear is driven to rotate through the station driving assembly; the planetary driving assembly drives the large driving duplicate gear to rotate, so that the structural stability of the machine is good, the driving mechanism is stable, and the stability of the machine is good.

Description

Technical Field

[0001] The utility model relates to the technical field of grinding and polishing equipment, in particular to a lower spindle assembly of a multi-station sheet polishing machine. Background Art

[0002] With the development of communication technology, smart phones have become more and more popular and are developing towards high quality. High quality includes not only the hardware configuration of the mobile phone, but also the appearance and texture. The current mainstream mobile phone main structure is an alloy middle frame plus a glass front screen and a glass back screen (or a glass cover). In order to enhance the visual effect of the screen and the body as a whole, and to enhance the feel, 2.5D screens are now widely used to replace 2D screens. 2.5D screens are a kind of curved screen, also known as water drop screens. 2.5D screens can make the surface of the mobile phone look like a water drop that is full but not overflowing, which has more visual tension and adds a lot to the visual expression of the mobile phone screen. In addition, the curved shape of the 2.5D screen is more in line with the principle of ergonomics. The curved transition eliminates the harsh edges and corners of the edge, greatly improving the feel of sliding the screen. However, the cost is also relatively increased, because during the processing, the glass grinding process will have a transition problem, so there will be a certain loss in the yield rate, resulting in an increase in cost. To solve these problems, people have thought of many ways to improve the quality and efficiency of glass polishing.

[0003] In the patent document with application number 202110562541.3, application publication number CN113246000 A, and application publication date 2021.08.13, an intelligent light sweeper is disclosed, including a frame and a lower disk mechanism arranged on the frame, wherein the lower disk mechanism includes: a turntable assembly, including a turntable, a turntable shaft connected to the turntable at one end, and a turntable gear sleeved on the other end of the turntable shaft; multiple working disk assemblies, including a working disk arranged on the turntable, a working disk shaft connected to the working disk at one end, a connecting bearing sleeved on the other end of the working disk shaft, and a working disk gear sleeved on the connecting bearing and meshed with the turntable gear, and a plurality of connecting holes are provided on the working disk gear; a clutch assembly arranged at the material picking and unloading station.

[0004] The scheme discloses setting up an upper disk mechanism and a lower disk mechanism, setting multiple working disk assemblies on the lower disk mechanism, and setting a polishing assembly on the upper disk assembly. This arrangement can effectively improve the efficiency of glass processing, but the scheme also has shortcomings. For example, the rotation of its workpiece disk unit 326 is achieved by the meshing of the transmission gear 327 with the working disk gear 323. The transmission gear 327 and the working disk gear 323 are both external gears, and the meshing of external gears is not as stable as the meshing of external gears with internal gears. In addition, the structural stability of the lower disk mechanism in the prior art needs to be further improved. Summary of the invention

[0005] In order to solve the problems existing in the prior art, the utility model provides a lower spindle assembly of a multi-station sheet polishing machine, which forms a stable driving mechanism by arranging a large drive double gear, a station drive assembly and a planetary drive assembly to improve the performance of the machine.

[0006] To achieve the above-mentioned purpose, the technical solution of the utility model is: a lower spindle assembly of a multi-station sheet polishing machine, including a support table, a central support flange is fixedly arranged on the support table, a large station rotating flange is arranged inside the central support flange through a first bearing group; a large drive double gear is arranged on the top outer side of the central support flange through a second bearing; a third bearing group is also arranged between the large station rotating flange and the large drive double gear; a large station flange lower gear is arranged at the bottom end of the large station rotating flange.

[0007] The lower spindle assembly also includes a station drive assembly for driving the lower gear of the large station flange to rotate and a planetary drive assembly for driving the large driving double gear to rotate.

[0008] The above structure can stably and reliably fix the large station rotating flange and the large driving double gear through several sets of bearing groups, and drive the gear under the large station flange to rotate through the station driving assembly; and drive the large driving double gear to rotate through the planetary driving assembly, so that the structure stability of the machine is good, the driving mechanism is stable, and the stability of the machine is good.

[0009] Furthermore, an air hole penetrating the large-station rotating flange is opened at the center of the large-station rotating flange, and a first rotating joint is provided at the bottom end of the air hole.

[0010] Furthermore, the first bearing group includes deep groove ball bearings respectively arranged at the upper and lower ends of the central support flange and a one-way thrust ball bearing arranged between the two deep groove ball bearings; the second bearing is a one-way thrust ball bearing.

[0011] Furthermore, the third bearing group is a heavy-duty low-speed deep groove ball bearing respectively arranged at the upper and lower ends of the large driving duplex gear, and the heavy-duty low-speed deep groove ball bearing at the lower end is in contact with the second bearing.

[0012] Furthermore, the top of the air hole is trumpet-shaped.

[0013] Furthermore, the station drive assembly includes a station drive reducer, and a station reducer gear is provided on the output shaft of the station drive reducer, and the station reducer gear is meshed with the gear under the large station flange.

[0014] The station driving assembly also includes a station driving motor for driving the input shaft of the station driving reducer to rotate.

[0015] Further, the large driving duplex gear includes a driven driving gear located at the bottom.

[0016] The planetary drive assembly comprises a planetary drive reducer, on the output shaft of which a planetary power gear is arranged, and the planetary power gear is meshed with a driven drive gear.

[0017] The planetary drive assembly further includes a planetary drive motor for driving the input shaft of the planetary drive reducer to rotate.

[0018] Furthermore, a bearing fixing plate with a seat is provided on the support platform, a square seat bearing is provided on the bearing fixing plate with a seat, and the output shaft of the planetary drive reducer passes through the square seat bearing to enhance the stability of the output shaft of the planetary drive reducer. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 The figure is a schematic diagram of the overall structure of the polishing machine to which the utility model is applied;

[0020] Figure 2 It is a structural schematic diagram of the polishing machine to which the utility model is applied after the upper cover assembly is removed;

[0021] Figure 3 It is a schematic diagram of the structure of the utility model;

[0022] Figure 4 It is a structural schematic diagram of another perspective of the utility model;

[0023] Figure 5 It is a top view of the utility model;

[0024] Figure 6 for Figure 5 Section view of the middle AA plane. DETAILED DESCRIPTION

[0025] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0026] like Figures 1 to 6 As shown, a lower spindle assembly of a multi-station sheet polishing machine is a part of the multi-station sheet polishing machine and is arranged at the bottom of the multi-station sheet polishing machine. The multi-station sheet polishing machine includes a frame 100.

[0027] like Figures 2 to 4 As shown, the frame 100 includes a bottom frame assembly 101, and the lower spindle assembly includes a support platform 10 arranged on the bottom frame assembly 101. In this embodiment, the support platform 10 is a square table structure with four corners, and a center support flange 11 is fixedly arranged on the support platform 10, and the axis of the center support flange 11 is perpendicular to the upper surface of the support platform 10.

[0028] like Figure 6As shown, a large-position rotating flange 13 is arranged inside the center support flange 11 through the first bearing group 12; in this embodiment, the first bearing group 12 includes deep groove ball bearings respectively arranged at the upper and lower ends of the center support flange 11 and a one-way thrust ball bearing arranged between the two deep groove ball bearings.

[0029] A large driving double gear 15 is arranged on the top outer side of the central supporting flange 11 through a second bearing 14. In this embodiment, the second bearing 14 is a one-way thrust ball bearing; the large driving double gear 15 includes a driven driving gear 151 located at the bottom and a driving driving gear 152 located at the top, and the outer diameter of the driven driving gear 151 is smaller than the outer diameter of the driving driving gear 152.

[0030] In order to maintain the stability of the rotation of the large driving double gear 15 , a third bearing group 16 is further provided between the large station rotating flange 13 and the large driving double gear 15 .

[0031] In this embodiment, the third bearing group 16 is a heavy-duty low-speed deep groove ball bearing respectively arranged at the upper and lower ends of the large driving double gear 15 , and the heavy-duty low-speed deep groove ball bearing at the lower end is in contact with the second bearing 14 .

[0032] A large-station flange lower gear 17 is provided at the bottom end of the large-station rotating flange 13 .

[0033] The lower spindle assembly also includes a station drive assembly 18 for driving the large station flange lower gear 17 to rotate and a planetary drive assembly 19 for driving the large driving duplex gear 15 to rotate.

[0034] The station drive assembly 18 includes a station drive reducer 180, on the output shaft of which a station reducer gear 181 is provided, and the station reducer gear 181 meshes with the large station flange lower gear 17; the station drive assembly 18 also includes a station drive motor 182 for driving the input shaft of the station drive reducer 180 to rotate. When the station drive motor 182 is started, the large station flange lower gear 17 is driven to rotate through the station drive reducer 180 and the station reducer gear 181, thereby driving the large station rotating flange 13 to rotate.

[0035] The planetary drive assembly 19 includes a planetary drive reducer 190, on the output shaft of which a planetary power gear 191 is provided, and the planetary power gear 191 meshes with the driven drive gear 151. The planetary drive assembly 19 also includes a planetary drive motor 192 that drives the input shaft of the planetary drive reducer 190 to rotate. When the planetary drive motor 192 is started, the large drive double gear 15 is driven to rotate through the planetary drive reducer 190 and the planetary power gear 191.

[0036] like Figure 4 and Figure 6As shown, a bearing fixing plate 193 with a seat is provided on the support platform 10, and a square seat bearing 194 is provided on the bearing fixing plate 193, and the output shaft of the planetary drive reducer 190 passes through the square seat bearing 194 to enhance the stability of the output shaft of the planetary drive reducer 190.

[0037] An air hole penetrating the large station rotating flange 13 is provided at the center of the large station rotating flange 13, and a rotating joint is provided at the bottom of the air hole; in this embodiment, the top of the air hole is a trumpet-shaped air inlet.

[0038] In this solution, the large station rotating flange 13 can be reliably arranged on the central supporting flange 11 through the first bearing group 12. By setting the large station flange lower gear 17, the rotation of the station driving reducer 180 can drive the large station rotating flange 13 to rotate.

[0039] The rotation of the planetary drive reducer 190 can drive the driven drive gear 151 through the planetary power gear 191 to rotate the large drive double gear 15.

[0040] The solution has a simple structure, reliable operation, low maintenance cost and is suitable for popularization and use.

Claims

1. A lower spindle assembly of a multi-station sheet polishing machine, comprising a support table, characterized in that: A central support flange is fixedly arranged on the support platform, and a large workstation rotating flange is arranged inside the central support flange through a first bearing group; a large drive double gear is arranged on the top outer side of the central support flange through a second bearing; a third bearing group is also arranged between the large workstation rotating flange and the large drive double gear; a large workstation flange lower gear is arranged at the bottom end of the large workstation rotating flange; The lower spindle assembly also includes a station drive assembly for driving the lower gear of the large station flange to rotate and a planetary drive assembly for driving the large driving double gear to rotate.

2. The lower spindle assembly of the multi-station sheet polishing machine according to claim 1 is characterized in that: An air hole penetrating the large-station rotating flange is arranged at the center of the large-station rotating flange, and a rotating joint is arranged at the bottom end of the air hole.

3. The lower spindle assembly of the multi-station sheet polishing machine according to claim 1 is characterized in that: The first bearing group includes deep groove ball bearings respectively arranged at the upper and lower ends of the central support flange and a one-way thrust ball bearing arranged between the two deep groove ball bearings; the second bearing is a one-way thrust ball bearing.

4. The lower spindle assembly of the multi-station sheet polishing machine according to claim 3 is characterized in that: The third bearing group is a heavy-duty low-speed deep groove ball bearing respectively arranged at the upper and lower ends of the large driving duplex gear, and the heavy-duty low-speed deep groove ball bearing at the lower end is in contact with the second bearing.

5. The lower spindle assembly of the multi-station sheet polishing machine according to claim 2, characterized in that: The top of the air hole is trumpet-shaped.

6. The lower spindle assembly of the multi-station sheet polishing machine according to claim 1, characterized in that: The station drive assembly includes a station drive reducer, and a station reducer gear is provided on the output shaft of the station drive reducer, and the station reducer gear is meshed with the gear under the large station flange; The station driving assembly also includes a station driving motor for driving the input shaft of the station driving reducer to rotate.

7. The lower spindle assembly of the multi-station sheet polishing machine according to claim 1, characterized in that: The large drive duplex gear includes a driven drive gear at the bottom; The planetary drive assembly includes a planetary drive reducer, on the output shaft of which a planetary power gear is provided, and the planetary power gear is meshed with a driven drive gear; The planetary drive assembly further includes a planetary drive motor for driving the input shaft of the planetary drive reducer to rotate.

8. The lower spindle assembly of the multi-station sheet polishing machine according to claim 7, characterized in that: A bearing fixing plate with a seat is arranged on the support platform, a bearing with a square seat is arranged on the bearing fixing plate with a seat, and an output shaft of the planetary drive reducer passes through the bearing with a square seat to enhance the stability of the output shaft of the planetary drive reducer.

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