Station turntable assembly of multi-station sheet polishing machine

Abstract

The utility model provides a station turntable assembly of a multi-station sheet polishing machine, the multi-station sheet polishing machine comprises a large station turntable, more than two groups of station turntable assemblies are arranged on the large station turntable, and each station turntable assembly comprises a station turntable rotation driving device for driving a small station turntable assembly to rotate. The station turntable rotation driving device comprises a station small planetary gear which is fixedly connected with the planetary rotation flange plate; a station inner gear ring is fixedly arranged on the station large rotating disc through a supporting rod, and the station small planetary gear is meshed with the station inner gear ring. According to the arrangement, due to the fact that the station inner gear ring is arranged, the station small rotating disc assembly is driven by rotation of the small planet gear fixing plate to revolve around the station inner gear ring, rotation is achieved through the station small planet gear, in other words, workpieces on the station small rotating disc assembly not only do rotation motion but also do revolution motion in the polishing process, and on the premise that the workpieces reach the same quality, the work efficiency is greatly improved. According to the scheme, the polishing efficiency can be effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of grinding and polishing equipment, in particular to a station turntable component 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 working disk assembly 32 of the scheme can only rotate on its own, which makes the polishing efficiency low. Therefore, it is necessary to design a more stable structure to drive the rotation of the workpiece to improve the polishing efficiency. Summary of the invention

[0005] In order to solve the problems existing in the prior art, the utility model provides a station turntable assembly of a multi-station sheet polishing machine. By setting an internal gear ring at the station, planetary transmission is realized. The small turntable assembly at the station can not only rotate on its own, but also revolve, so as to improve the stability of the machine and the efficiency of processing workpieces.

[0006] To achieve the above-mentioned purpose, the technical scheme of the utility model is: a station turntable assembly of a multi-station sheet polishing machine, the multi-station sheet polishing machine includes a station large turntable, on which are arranged more than two groups of station turntable assemblies, the station turntable assembly includes a large planetary fixed flange sleeve fixed on the station large turntable; a station lower gear is arranged at the bottom of the large planetary fixed flange sleeve through a bearing; a small station rotating flange is arranged inside the large planetary fixed flange sleeve through a fourth bearing group;

[0007] A small planetary wheel fixing plate is provided on the upper part of the small station rotating flange, and more than one small turntable assembly of the station is provided on the small planetary wheel fixing plate, and the distance between the rotation center of each small turntable assembly of the station and the rotation center of the small planetary wheel fixing plate is equal;

[0008] The workstation turntable assembly also includes a workstation turntable rotation drive device for driving the workstation small turntable assembly to rotate, and the workstation turntable rotation drive device includes a workstation small planetary gear fixedly connected to the planetary rotating flange; a workstation inner gear ring is fixedly provided on the workstation large turntable through a support rod, and the workstation small planetary gear is meshed with the workstation inner gear ring.

[0009] In the above arrangement, since an inner gear ring is provided at the work station, the small turntable assembly at the work station realizes the revolution around the inner gear ring of the work station driven by the rotation of the asteroid wheel fixing plate, and realizes the self-rotation through the asteroid gear of the work station, that is, the workpiece thereon not only rotates but also revolves during polishing. On the premise that the workpieces reach the same quality, this scheme can effectively improve the polishing efficiency.

[0010] Furthermore, a clutch turntable is provided at the bottom of the small station rotating flange, the clutch turntable can slide along the axial direction of the small station rotating flange, and the small station rotating flange can be driven to rotate by the clutch turntable. In this solution, the rotational power of the small station rotating flange is provided by the clutch turntable.

[0011] Furthermore, a connecting piece for transmitting power is provided between the clutch rotating disc and the lower gear of the station, and an elastic component for making the clutch rotating disc abut against the lower gear of the station under normal conditions is provided at the lower part of the rotating flange of the small station. Under normal conditions, this solution can keep the rotating flange of the small station connected to the clutch rotating disc to transmit power.

[0012] Furthermore, a spline groove is provided at the lower part of the small station rotating flange, and a groove matching the spline groove is provided on the clutch rotating disk, so that the clutch rotating disk can slide along the axial direction of the small station rotating flange and drive the small station rotating flange to rotate. This arrangement can ensure reliable power transmission.

[0013] Furthermore, an air hole penetrating the small-station rotating flange is provided in the small-station rotating flange, and a rotating joint is provided at the bottom end of the air hole.

[0014] Furthermore, the connecting piece is a round head positioning pin with a threaded hole, and one end of the round head positioning pin with a threaded hole is fixed to the clutch rotating disk by a bolt. The round head positioning pin facilitates the connection between the clutch rotating disk and the small station rotating flange.

[0015] Furthermore, the elastic component is a pre-stressed spring arranged at the bottom of the clutch turntable, and a pre-stressed spring nut for resisting the pre-stressed spring is arranged at the bottom of the small station rotating flange.

[0016] Furthermore, the fourth bearing group includes deep groove ball bearings respectively arranged at the upper and lower ends of the large planetary fixed flange sleeve and a one-way thrust ball bearing arranged between the two deep groove ball bearings;

[0017] The fifth bearing group includes deep groove ball bearings respectively arranged at the upper and lower ends of the asteroid fixing flange sleeve and a one-way thrust ball bearing arranged between the two deep groove ball bearings. The above arrangement can make the machine run stably and the machine has high precision.

[0018] Furthermore, the station small turntable assembly includes an asteroid fixed flange sleeve arranged on the asteroid wheel fixed plate, a station asteroid gear is fixedly arranged on the asteroid fixed flange sleeve, a station lower turntable is fixedly arranged on the top of the asteroid fixed flange sleeve, and a station upper turntable is also arranged on the top of the station lower turntable; a concave cavity is arranged on the station lower turntable; a trumpet-shaped air suction hole is opened in the center of the asteroid fixed flange sleeve, and a rotary joint is arranged at the bottom end of the air suction hole. A vacuum channel is provided through the air hole, the air suction hole and the rotary joint to adsorb the workpiece. 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 structural schematic diagram of a lower spindle assembly of a polishing machine to which the utility model is applied;

[0022] Figure 4 It is a structural schematic diagram of another perspective of the lower spindle assembly of the polishing machine to which the utility model is applied;

[0023] Figure 5 A top view of a lower spindle assembly of a polishing machine to which the utility model is applied;

[0024] Figure 6 for Figure 5 Sectional view of the middle AA plane;

[0025] Figure 7 This is a schematic structural diagram of a workstation turntable assembly according to an embodiment of the utility model;

[0026] Figure 8 A top view of a workstation turntable assembly according to an embodiment of the utility model;

[0027] Fig. 9 for Figure 8 Sectional view along the middle BB plane. DETAILED DESCRIPTION

[0028] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0029] The utility model provides a station turntable assembly of a multi-station sheet material polishing machine, which is applied to the multi-station sheet material polishing machine and is used for transmitting power to provide rotational power for a workpiece to be processed.

[0030] like Figures 1 to 9 As shown, a multi-station sheet polishing machine includes a frame 100 and a lower spindle assembly 1, a station turntable assembly 2 and an upper spindle assembly 3 respectively arranged on the frame 100.

[0031] The rack 100 includes a bottom frame assembly 101 , on which are disposed more than three supporting columns 102 . In this embodiment, there are four supporting columns 102 , which are distributed in a rectangular shape at four corners of the bottom frame assembly 101 .

[0032] A top cross frame 103 is provided at the top of the supporting column 102. In this embodiment, the top cross frame 103 is formed by criss-cross welding of square tubes. The bottom frame assembly 101, the supporting column 102 and the top cross frame 103 form a cage-like whole. This arrangement can effectively improve the overall structural strength of the polishing machine.

[0033] The multi-station sheet polishing machine also includes an upper cover assembly 104 for realizing closed processing and a grinding liquid circulation assembly 105 for providing grinding liquid to the upper spindle assembly 3 .

[0034] like Figures 3 to 6 As shown, the lower spindle assembly 1 includes a support platform 10 arranged on a bottom frame assembly 101. In this embodiment, the support platform 10 is a square table structure with four corners. 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.

[0035] A large workstation rotating flange 13 is arranged inside the central 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 central support flange 11 and a one-way thrust ball bearing arranged between the two deep groove ball bearings.

[0036] 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.

[0037] In order to maintain the stability of the rotation of the large driving double gear 15, a third bearing group 16 is provided between the large station rotating flange 13 and the large driving double gear 15; a large station flange lower gear 17 is provided at the bottom end of the large station rotating flange 13.

[0038] 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.

[0039] 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.

[0040] 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.

[0041] 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 end of the air hole; the top end of the air hole is a trumpet-shaped air inlet.

[0042] like Figures 5 to 9 As shown, the workstation turntable assembly 2 includes a large workstation turntable 20 disposed on a large workstation rotating flange 13, and more than two groups of workstation turntable assemblies 21 are disposed on the large workstation turntable 20. In this embodiment, the number of the workstation turntable assemblies 21 is four.

[0043] The station turntable assembly 21 includes a large planetary fixed flange sleeve 210 fixed on the station large turntable 20; a station lower gear 211 is provided at the bottom of the large planetary fixed flange sleeve 210 through a bearing; a small station rotating flange 213 is provided inside the large planetary fixed flange sleeve 210 through a fourth bearing group 212.

[0044] In this embodiment, the fourth bearing group 212 includes deep groove ball bearings respectively arranged at the upper and lower ends of the large planetary fixed flange sleeve 210 and a one-way thrust ball bearing arranged between the two deep groove ball bearings.

[0045] A clutch turntable 214 is provided at the lower part of the small station rotating flange 213 . The clutch turntable 214 can slide along the axial direction of the small station rotating flange 213 , and the small station rotating flange 213 can be driven to rotate by the clutch turntable 214 .

[0046] In this embodiment, a spline groove is provided on the lower body of the small workstation rotating flange 213, and a groove matching the spline groove is provided on the clutch turntable 214, so that the clutch turntable 214 can slide axially along the small workstation rotating flange 213 and drive the small workstation rotating flange 213 to rotate.

[0047] A connecting piece for transmitting power is also provided between the clutch turntable 214 and the lower gear 211 of the workstation. In this embodiment, the connecting piece is a round-headed locating pin with a threaded hole (not shown), and one end of the round-headed locating pin with a threaded hole is fixed to the clutch turntable 214 by a bolt.

[0048] An elastic component is also provided at the lower part of the small station rotating flange 213 to normally make the clutch rotating disk 214 abut against the station lower gear 211. The abutment mentioned here means that the clutch rotating disk 214 always keeps in contact with the station lower gear 211 when the clutch rotating disk 214 is not affected by any force other than the force applied by the elastic component.

[0049] In this embodiment, the elastic component is a pre-stressed spring 215 provided at the bottom of the clutch rotary plate 214 , and a pre-stressed spring nut 216 for resisting the pre-stressed spring 215 is provided at the bottom of the small station rotating flange 213 .

[0050] An annular groove 2140 is formed on the clutch rotating disk 214 .

[0051] A small planetary wheel fixing plate 217 is provided on the upper part of the small workstation rotating flange 213, and more than one workstation small turntable assembly 23 is provided on the small planetary wheel fixing plate 217, and the distance from the rotation center of each workstation small turntable assembly 23 to the rotation center of the small planetary wheel fixing plate 217 is equal.

[0052] In this embodiment, the number of the small turntable assemblies 23 of the workstation is three, and the small turntable assemblies 23 of the workstation include an asteroid fixing flange sleeve 230 arranged on the asteroid wheel fixing plate 217, and a planetary rotating flange 232 is arranged inside the asteroid fixing flange sleeve 230 through the fifth bearing group 231, and a workstation lower turntable 233 is arranged on the top of the planetary rotating flange 232, and a workstation upper turntable 234 is arranged on the top of the workstation lower turntable 233, and an air suction hole for adsorbing workpieces is arranged on the workstation upper turntable 234.

[0053] A rotary joint is provided at the bottom end of the planetary rotary flange 232 .

[0054] The structure of the fifth bearing group 231 is consistent with that of the fourth bearing group 212 .

[0055] The workstation turntable assembly 21 further comprises a workstation turntable rotation driving device for driving the workstation small turntable assembly 23 to rotate.

[0056] In this embodiment, the work station turntable rotation drive device includes a work station asteroid gear 235 fixedly connected to the bottom of the planetary rotating flange 232, and the work station asteroid gear 235 does not contact the asteroid fixed flange sleeve 230; a work station inner gear ring 236 is fixed on the work station large turntable by a support rod, and the work station asteroid gear 235 is meshed with the work station inner gear ring 236.

[0057] The rotation of the small workstation rotating flange 213 drives the asteroid wheel fixing plate 217 to rotate. Since the workstation inner gear ring 236 is fixed, the rotation of the asteroid wheel fixing plate 217 can make the workstation asteroid gear 235 roll along the workstation inner gear ring 236. The workstation asteroid gear 235 rotates while rolling, causing the lower turntable 233 of the workstation to rotate, thereby driving the workpiece to rotate.

[0058] An air hole penetrating the small workstation rotating flange 213 is provided in the small workstation rotating flange 213, and a rotating joint is provided at the bottom end of the air hole; the air hole penetrating the small workstation rotating flange 213 is connected to the rotating joint at the bottom end of the planetary rotating flange 232 through an air pipe. When the rotating joint at the bottom end of the small workstation rotating flange 213 is connected to a vacuum source, an adsorption effect can be formed on the workpiece on the turntable 234 on the workstation.

[0059] like Figure 3 As shown, a clutch assembly 22 is also provided on the bottom frame assembly 101. The clutch assembly 22 includes a clutch slide rail 221 vertically arranged on the side wall of the bottom frame assembly 101, a clutch slider 222 is provided on the clutch slide rail 221, a clutch pressure plate 223 is provided on the clutch slider 222, and one end of the clutch pressure plate 223 away from the slider 222 extends into the annular groove 2140.

[0060] A clutch driving cylinder 224 is also provided on the bottom frame assembly 101 , which can make the clutch pressure plate 223 move up and down along the slide rail 221 . The piston rod of the clutch driving cylinder 224 is connected to the clutch pressure plate 223 .

[0061] When the clutch drive cylinder 224 applies downward force to the clutch pressure plate 223, the round head positioning pin on the clutch turntable 214 disengages from the lower station gear 211, disconnecting the power transmitted to the lower station gear 211 by the large driving double gear 15, and the small station rotating flange 213 loses power and stops rotating.

[0062] like Figure 3 As shown, a positioning device 24 is also provided on the bottom frame assembly 101 for accurately positioning the workstation turntable 20. The positioning device 24 includes a positioning cylinder 240 provided on the bottom frame assembly 101, a positioning rod 241 is provided on the piston rod of the positioning cylinder 240, and a positioning seat 242 with a positioning groove cooperating with the positioning rod 241 is provided at the bottom of the workstation turntable 20.

[0063] When the positioning cylinder 240 drives the positioning rod 241 to extend into the positioning groove of the positioning seat 242, the large turntable 20 of the workstation can be accurately positioned to prevent the small turntable assembly 23 of the workstation from swinging due to the force generated by the rotation of the polishing head.

[0064] In this solution, since the workstation inner gear ring 236 is provided, the workstation small turntable assembly 23 realizes revolution around the workstation inner gear ring 236 driven by the rotation of the asteroid wheel fixing plate 217, and realizes self-rotation through the workstation asteroid gear 235, that is, the workpiece thereon not only rotates but also revolves during polishing. On the premise that the workpieces reach the same quality, this solution can effectively improve the polishing efficiency.

Claims

1. A station turntable assembly of a multi-station sheet polishing machine, the multi-station sheet polishing machine comprises a station large turntable, on which are arranged more than two groups of station turntable assemblies, characterized in that : The station turntable assembly includes a large planetary fixed flange sleeve fixed on the station large turntable; a station lower gear is arranged at the bottom of the large planetary fixed flange sleeve through a bearing; a small station rotating flange is arranged inside the large planetary fixed flange sleeve through a fourth bearing group; A small planetary wheel fixing plate is provided on the upper part of the small station rotating flange, and more than one small turntable assembly of the station is provided on the small planetary wheel fixing plate, and the distance between the rotation center of each small turntable assembly of the station and the rotation center of the small planetary wheel fixing plate is equal; The workstation turntable assembly also includes a workstation turntable rotation drive device for driving the workstation small turntable assembly to rotate, and the workstation turntable rotation drive device includes a workstation small planetary gear fixedly connected to the planetary rotating flange; a workstation inner gear ring is fixedly provided on the workstation large turntable through a support rod, and the workstation small planetary gear is meshed with the workstation inner gear ring.

2. The station turntable assembly of the multi-station sheet polishing machine according to claim 1, characterized in that: A clutch turntable is arranged at the lower part of the small station rotating flange. The clutch turntable can slide along the axial direction of the small station rotating flange, and the small station rotating flange can be driven to rotate by the clutch turntable.

3. The station turntable assembly of the multi-station sheet polishing machine according to claim 1, characterized in that: A connecting piece for transmitting power is provided between the clutch rotating disc and the gear under the station, and an elastic component for making the clutch rotating disc abut against the gear under the station under normal conditions is provided at the lower part of the rotating flange of the small station.

4. The station turntable assembly of the multi-station sheet polishing machine according to claim 1, characterized in that: A spline groove is provided at the lower part of the small station rotating flange, and a groove matching the spline groove is provided on the clutch rotating disk, so that the clutch rotating disk can slide along the axial direction of the small station rotating flange and drive the small station rotating flange to rotate.

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

6. The station turntable assembly of the multi-station sheet polishing machine according to claim 3, characterized in that: The connecting piece is a round head positioning pin with a threaded hole, and one end of the round head positioning pin with the threaded hole is fixed on the clutch rotating disk by a bolt.

7. The station turntable assembly of the multi-station sheet polishing machine according to claim 3, characterized in that: The elastic component is a pre-stressed spring arranged at the bottom of the clutch rotating disk, and a pre-stressed spring nut for resisting the pre-stressed spring is arranged at the bottom of the small station rotating flange.

8. The station turntable assembly of the multi-station sheet polishing machine according to claim 1, characterized in that: The fourth bearing group includes deep groove ball bearings respectively arranged at the upper and lower ends of the large planetary fixed flange sleeve and a one-way thrust ball bearing arranged between the two deep groove ball bearings. The fifth bearing group includes deep groove ball bearings respectively arranged at the upper and lower ends of the asteroid fixing flange sleeve and a one-way thrust ball bearing arranged between the two deep groove ball bearings.

9. The station turntable assembly of the multi-station sheet polishing machine according to claim 1, characterized in that: The work station small turntable assembly includes an asteroid fixing flange sleeve arranged on the asteroid wheel fixing plate, on which the work station asteroid gear is fixedly arranged, on which the asteroid fixing flange sleeve is fixedly arranged, on which the work station lower turntable is fixedly arranged on the top of the asteroid fixing flange sleeve, and on which the work station upper turntable is also arranged on the top of the work station lower turntable; a concave cavity is arranged on the work station lower turntable; a trumpet-shaped air suction hole is opened in the center of the asteroid fixing flange sleeve, and a rotating joint is arranged at the bottom end of the air suction hole.

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