Synchronous lifting structure for inner gear and outer gear of double-sided grinding and polishing machine

Abstract

The utility model relates to the field of grinding and polishing machines, in particular to a synchronous lifting structure for inner and outer gears of a double-sided grinding and polishing machine, which comprises an inner gear ring and a sun gear which are coaxially matched with each other, and a planet gear of the grinding and polishing machine is simultaneously meshed with the inner gear ring and the sun gear and clamped between an upper grinding disc and a lower grinding disc of the grinding and polishing machine. The workpiece is borne and driven to be ground; the lifting sleeve fixing plate is in coaxial rotation fit with the inner gear ring and ascends and descends synchronously, the positioning seat is in coaxial rotation fit with the sun gear and ascends and descends synchronously, at least one set of vertically-arranged lifting lead screws are fixedly connected with the lifting sleeve fixing plate and the positioning seat, and the lifting lead screws and lifting nuts of the grinding and polishing machine form lead screw nut fit. And the lifting screw rod drives the lifting sleeve fixing plate and the positioning seat to generate synchronous lifting action. According to the utility model, synchronous automatic lifting of the sun gear and the inner gear ring of the grinding and polishing machine can be realized.

Description

Technical Field

[0001] The utility model relates to the field of grinding and polishing machines, and particularly to a synchronous lifting structure of internal and external gears of a double-sided grinding and polishing machine. Background Technique

[0002] The double-sided grinding and polishing machine is mainly used for the double-sided grinding and polishing processing of hard and brittle materials with parallel two sides such as glass, ceramics, silicon wafers and metals. Its structure is as described in the publication number "CN117900992A", including an upper grinding disc, a lower grinding disc, a sun gear, a planetary gear and an internal gear ring; the planetary gear is used to carry the workpiece to drive the workpiece for grinding. The planetary gear is clamped between the upper grinding disc and the lower grinding disc, and the inner and outer sides of the planetary gear are respectively meshed and driven by the sun gear and the internal gear ring.

[0003] During the use of the double-sided grinding and polishing machine, when it is necessary to take or replace different planetary gears and adjust the meshing position of the sun gear, the sun gear and the internal gear ring need to be lifted before the replacement of parts and the position adjustment operation can be carried out; at present, the lifting of the sun gear and the internal gear ring are independent of each other; by installing a lifting cylinder at the bottom of the internal gear ring, the internal gear ring can be driven by the lifting cylinder to make reciprocating lifting movements, while the sun gear needs to adjust the height by lifting bolts or manually adding or reducing gaskets by hand, and it is impossible to automatically lift the sun gear and the planetary gear simultaneously, and the adjustment efficiency is relatively low, so it needs to be solved urgently. Content of the Utility Model

[0004] In order to avoid and overcome the technical problems existing in the prior art, the utility model provides a synchronous lifting structure of internal and external gears of a double-sided grinding and polishing machine. The utility model can realize the synchronous automatic lifting of the sun gear and the internal gear ring of the grinding and polishing machine.

[0005] To achieve the above object, the utility model provides the following technical solutions:

[0006] A synchronous lifting structure of internal and external gears of a double-sided grinding and polishing machine, including an internal gear ring and a sun gear arranged coaxially and in cooperation, the planetary gears of the grinding and polishing machine are simultaneously meshed with the internal gear ring and the sun gear, and the planetary gears are clamped between the upper grinding disc and the lower grinding disc of the grinding and polishing machine to carry the workpiece and drive the workpiece for grinding; it also includes a lifting sleeve fixing plate that rotates coaxially with the internal gear ring and lifts synchronously, and a positioning seat that rotates coaxially with the sun gear and lifts synchronously. At least one group of vertically arranged lifting screw rods is connected and fixed to the lifting sleeve fixing plate and the positioning seat. The lifting screw rods form a screw-nut fit with the lifting nuts of the grinding and polishing machine, and the lifting screw rods drive the lifting sleeve fixing plate and the positioning seat to perform synchronous lifting actions.

[0007] As a further solution of the utility model: The upper grinding disc of the grinding and polishing machine is driven by a central shaft to rotate. A sliding sleeve is coaxially fixed on the outer ring of the central shaft and is axially slidably matched with the central shaft. The sun gear is coaxially fixed on a hollow sun gear shaft through a sun gear seat. The sun gear shaft is arranged on the outer ring of the central shaft and is coaxially rotatably matched with the sliding sleeve through a second bearing; the sun gear slides relative to the central shaft through the sliding sleeve.

[0008] As a further solution of the utility model: The lower grinding disc of the grinding and polishing machine is driven by a lower disc shaft to rotate. An outer sliding sleeve is coaxially arranged on the outer ring of the sun gear shaft and is axially slidably matched with the sun gear shaft. The lower disc shaft is coaxially arranged on the outer ring of the outer sliding sleeve and is coaxially rotatably matched with the outer sliding sleeve through a first bearing; the sun gear slides relative to the lower disc shaft through the outer sliding sleeve, and the outer sliding sleeve and the positioning seat are arranged with a height offset.

[0009] As a further solution of the utility model: A support seat for supporting the lower grinding disc is arranged on the outer ring of the lower disc shaft. The support seat and the lower disc shaft are coaxially rotatably matched through a deep groove ball bearing; from the inside to the outside, the support seat, the inner lifting sleeve and the outer lifting sleeve are coaxially arranged in sequence. The lifting sleeve fixing plate is connected and fixed to the outer lifting sleeve. While the inner lifting sleeve is axially slidably matched with the support seat, it is coaxially rotatably matched with the outer lifting sleeve through a third bearing. The outer lifting sleeve is connected and fixed to the inner gear ring through a gear ring bracket.

[0010] As a further solution of the utility model: The positioning seat is coaxially rotatably matched with the sun gear shaft through a fourth bearing. The positioning seat and the lifting sleeve fixing plate are respectively connected and fixed to the bottom end and the top end of the lifting nut.

[0011] As a further solution of the utility model: An induction iron is installed on the lifting sleeve fixing plate, and a limit inductor is arranged on the base of the grinding and polishing machine. The induction iron is located within the induction height of the limit inductor during the lifting and lowering stroke of the lifting sleeve fixing plate.

[0012] As a further solution of the utility model: The lifting screws are circumferentially and uniformly arranged around the central shaft. A lifting gear coaxially arranged on the outer ring of the central shaft is arranged on the grinding and polishing machine. The lifting gear is driven by a power source to rotate, and the lifting gear is meshed with the lifting nuts of the lifting screws.

[0013] As a further solution of the utility model: The power source is a driving motor. The driving motor drives the gear shaft to rotate through a speed reducer and a coupling. A bearing seat is installed in the base of the grinding and polishing machine and is rotatably matched with the gear shaft through a bearing in the bearing seat. The speed reducer gear on the gear shaft is meshed and transmitted with the lifting gear through an intermediate gear.

[0014] As a further solution of the utility model: There are three groups of the lifting screws. The lifting sleeve fixing plate is an equilateral triangle plate, and the lifting screws are fixed at the three corner ends of the lifting sleeve fixing plate.

[0015] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0016] 1. In the utility model, a lifting sleeve fixing plate that rotates coaxially with the internal gear ring and a positioning seat that rotates coaxially with the sun gear are installed outside the shaft system of the grinding machine. The lifting screw rod is connected to the lifting sleeve fixing plate and the positioning seat at the same time. Taking the lifting nut on the lifting screw rod as the power source, while driving the lifting screw rod to lift through the screw-nut cooperation, the sun gear and the internal gear ring can be driven to lift synchronously and automatically.

[0017] 2. While the sun gear shaft and the inner sliding sleeve are rotationally matched through bearings, the sun gear can slide relative to the central shaft through the inner sliding sleeve; while the lower disk shaft and the sun gear shaft are slidingly matched through the outer sliding sleeve, the lower disk shaft is rotationally matched with the outer sliding sleeve coaxially through bearings; through the mutual cooperation between the bearings and the sliding sleeves, the lifting and rotating movements of each component do not affect each other.

[0018] 3. In the utility model, an induction iron is installed on the lifting sleeve fixing plate, and a limit inductor is installed on the base of the grinding and polishing machine, so as to sense the lifting height of the lifting sleeve fixing plate in real time.

[0019] 4. The lifting screw rods of the utility model are evenly arranged around the central shaft, so as to form a uniform supporting and lifting effect. The driving motor drives the three groups of lifting screw rods to generate synchronous lifting actions through gear transmission. The transmission is stable, and the transmission mechanism does not interfere with the components inside the shaft system of the grinding machine. Description of the Drawings

[0020] Figure 1 is the structural schematic diagram of the utility model.

[0021] Figure 2 is the central cross-sectional view of the utility model.

[0022] Figure 3 is the top cross-sectional view of the utility model.

[0023] In the figure:

[0024] 1. Internal gear ring; 2. Sun gear; 3. Reducer; 4. Driving motor; 5. Coupling;

[0025] 6. Gear shaft; 7. Bearing seat; 8. Reducer gear; 9. Intermediate gear; 10. Lifting gear;

[0026] 11. Lifting nut; 12. Lifting screw rod; 13. Lifting sleeve fixing plate; 14. Positioning seat;

[0027] 15. Sun gear shaft; 16. Outer sliding sleeve; 17. Inner sliding sleeve; 18. Bearing I; 19. Bearing II;

[0028] 20. Support base; 21. Inner lifting sleeve; 22. Bearing III; 23. Outer lifting sleeve;

[0029] 24. Ring gear support; 25. Sun gear seat; 26. Central shaft; 27. Lower disc shaft; 28. Bearing IV;

[0030] 30. Limit inductor; 31. Inductive iron. Specific implementation manner

[0031] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0032] Please refer to Figures 1 to 3 , in the embodiment of the present invention, a synchronous lifting structure for internal and external gears of a double-sided grinding and polishing machine includes a central shaft 26 for driving the upper grinding disc to rotate. From the inside to the outside, the central shaft 26, inner sliding sleeve 17, sun gear shaft 15, outer sliding sleeve 16, lower disc shaft 27, support base 20, inner lifting sleeve 21, and outer lifting sleeve 23 are coaxially arranged in sequence and their lengths decrease in sequence; the inner sliding sleeve 17, sun gear shaft 15, outer sliding sleeve 16, lower disc shaft 27, support base 20, inner lifting sleeve 21, and outer lifting sleeve 23 are all of tubular structures.

[0033] The sun gear 2 is coaxially fixed on the sun gear shaft 15 through the sun gear seat 25. The sun gear shaft 15 is coaxially rotatably fitted with the inner sliding sleeve 17 through bearing II 19. The inner sliding sleeve 17 is sleeved outside the central shaft 26 and is axially slidably fitted with the central shaft 26, so that relative sliding can occur between the sun gear 2 and the central shaft 26. The lower disc shaft 27 is coaxially rotatably fitted with the outer sliding sleeve 16 through bearing I 18; so that relative sliding can occur between the sun gear 2 and the lower disc shaft 27.

[0034] The planetary gears of the grinding machine are simultaneously meshed with the internal gear ring 1 and the sun gear 2. The planetary gears are clamped between the upper grinding disc and the lower grinding disc of the grinding machine to carry the workpiece and drive the workpiece for grinding. The lower disc shaft 27 is used to drive the lower grinding disc to rotate. The support base 20 and the lower disc shaft 27 are coaxially rotatably fitted through a deep groove ball bearing and the axial position is positioned by a round nut.

[0035] Due to the length difference between the outer sliding sleeve 16 and the sun gear shaft 15, a positioning seat 14 is also coaxially fixed at the bottom of the sun gear shaft 15. The positioning seat 14 and the outer sliding sleeve 16 are arranged with a height offset and are coaxially rotatably fitted with the sun gear shaft 15 through bearing IV 28.

[0036] The inner lifting sleeve 21 and the outer lifting sleeve 23 are coaxially rotatably fitted through the bearing three 22. The bottom of the inner lifting sleeve 21 is connected to the lifting sleeve fixing plate 13, and the lifting sleeve fixing plate 13 is coaxially arranged on the outer ring of the support seat 20. The outer lifting sleeve 23 is coaxially fixed to the internal gear ring 1 through the gear ring bracket 24, so as to drive the internal gear ring 1 to lift synchronously.

[0037] The lifting sleeve fixing plate 13 is preferably an equilateral triangle plate. Three corner ends of the lifting sleeve fixing plate 13 are all provided with lifting lead screws 12 along the vertical direction. The top ends of the lifting lead screws 12 are connected and fixed to the lifting sleeve fixing plate 13, and the bottom ends of the lifting lead screws 12 are connected and fixed to the positioning seat 14. A lifting nut 11 which is fixed on the outer ring of the lifting lead screw 12 and serves as a power source to drive the lifting lead screw 12 to work is installed on the body of the grinding machine. When the lifting nut 11 rotates, it drives the lifting lead screw 12, the lifting sleeve fixing plate 13 and the positioning seat 14 to generate synchronous lifting actions through the screw-nut fit, so as to synchronously adjust the heights of the sun gear 2 and the internal gear ring 1.

[0038] In order to monitor the lifting heights of the sun gear 2 and the internal gear ring 1 in real time, an induction iron 31 is arranged on the outer ring of the lifting sleeve fixing plate 13, and a limit inductor 30 is arranged on the base of the grinding machine. The limit inductor 30 corresponds to the position of the induction iron 31, and the lifting strokes of the induction iron 31 are all within the induction height of the limit inductor 30.

[0039] In order to drive the lifting nut 11 to rotate, the lifting nuts 11 of the three groups of lifting lead screws 12 are simultaneously arranged to mesh with the lifting gear 10, and the lifting gear 10 is coaxially arranged with the central shaft 26. A driving motor 4 is further arranged on the grinding machine. The driving motor 4 drives the gear shaft 6 to rotate through the speed reducer 3 and the coupling 5. A bearing seat 7 is installed in the base of the grinding machine, and the gear shaft 6 is rotatably fitted through the bearing in the bearing seat 7. The speed reducer gear 8 on the gear shaft 6 is meshed and transmitted with the lifting gear 10 through the intermediate gear 9, and the driving motor 4 drives the three groups of lifting lead screws 12 to generate synchronous lifting actions through gear transmission.

[0040] The basic principles of the present application are described above in combination with specific embodiments. However, it should be noted that the advantages, advantages, effects, etc. mentioned in the present application are only examples and not limitations, and it cannot be considered that these advantages, advantages, effects, etc. are essential for each embodiment of the present application. In addition, the above disclosed specific details are only for the purposes of illustration and easy understanding, rather than limitations. The above details do not limit the present application to necessarily adopt the above specific details to implement.

[0041] The block diagrams of the devices, apparatuses, equipment, and systems involved in this application are only illustrative examples and are not intended to require or imply that they must be connected, arranged, and configured in the manner shown in the block diagrams. As those skilled in the art will recognize, these devices, apparatuses, equipment, and systems can be connected, arranged, and configured in any way. Words such as "including", "comprising", "having", etc. are open-ended terms, meaning "including but not limited to", and can be used interchangeably with each other. The word "or" and "and" used herein refer to the phrase "and / or", and can be used interchangeably with it, unless the context clearly indicates otherwise. The word "such as" used herein refers to the phrase "such as but not limited to", and can be used interchangeably with it.

Claims

1. A double-sided grinding and polishing machine internal and external gear synchronous lifting structure, comprising an internal gear ring (1) and a sun gear (2) coaxially arranged, the planetary gear of the grinding and polishing machine meshes with the internal gear ring (1) and the sun gear (2) at the same time, the planetary gear is clamped between the upper grinding plate and the lower grinding plate of the grinding and polishing machine to carry the workpiece and drive the workpiece to grind; characterized in that: It also includes a lifting sleeve fixing plate (13) that rotates coaxially with the inner gear ring (1) and rises and falls synchronously, and a positioning seat (14) that rotates coaxially with the sun gear (2) and rises and falls synchronously. At least one set of vertically arranged lifting screws (12) are connected and fixed to the lifting sleeve fixing plate (13) and the positioning seat (14). The lifting screw (12) and the lifting nut (11) of the grinding and polishing machine form a screw nut match. The lifting screw (12) drives the lifting sleeve fixing plate (13) and the positioning seat (14) to produce a synchronous lifting action.

2. The synchronous lifting structure of the internal and external gears of a double-sided grinding and polishing machine according to claim 1 is characterized in that: The upper grinding disc of the grinding and polishing machine is driven to rotate by a central shaft (26); an inner sleeve (17) is coaxially fixed to the outer ring of the central shaft (26) and slides with the central shaft (26) along the axial direction; the sun gear (2) is coaxially fixed to the hollow sun gear shaft (15) through a sun gear seat (25); the sun gear shaft (15) is arranged on the outer ring of the central shaft (26) and coaxially rotates with the inner sleeve (17) through a second bearing (19); the sun gear (2) and the central shaft (26) slide relative to each other through the inner sleeve (17).

3. The synchronous lifting structure of the internal and external gears of a double-sided grinding and polishing machine according to claim 2 is characterized in that: The lower grinding disc of the grinding and polishing machine is driven to rotate by a lower disc shaft (27); the outer ring of the sun gear shaft (15) is coaxially provided with an outer sleeve (16) which is axially slidably matched with the sun gear shaft (15); the lower disc shaft (27) is coaxially arranged on the outer ring of the outer sleeve (16) and is coaxially rotatably matched with the outer sleeve (16) through a bearing 1 (18); the sun gear (2) slides relative to the lower disc shaft (27) through the outer sleeve (16); and the outer sleeve (16) and the positioning seat (14) are arranged with a height staggered arrangement.

4. The synchronous lifting structure of the internal and external gears of a double-sided grinding and polishing machine according to claim 3 is characterized in that: The outer ring of the lower plate shaft (27) is provided with a support seat (20) for supporting the lower grinding plate, and the support seat (20) and the lower plate shaft (27) are coaxially rotatably matched through a deep groove ball bearing; from the inside to the outside, the support seat (20), the inner lifting sleeve (21) and the outer lifting sleeve (23) are coaxially arranged in sequence, and the lifting sleeve fixing plate (13) is connected and fixed to the outer lifting sleeve (23), and the inner lifting sleeve (21) and the support seat (20) are axially slidably matched, and the outer lifting sleeve (23) is coaxially rotatably matched through a bearing three (22), and the outer lifting sleeve (23) is connected and fixed to the inner gear ring (1) through a gear ring bracket (24).

5. The synchronous lifting structure of internal and external gears of a double-sided grinding and polishing machine according to any one of claims 1 to 4, characterized in that: The positioning seat (14) is coaxially rotatably matched with the sun gear shaft (15) through the bearing four (28), and the positioning seat (14) and the lifting sleeve fixing plate (13) are respectively connected and fixed to the bottom end and the top end of the lifting nut (11).

6. A synchronous lifting structure for internal and external gears of a double-sided grinding and polishing machine according to any one of claims 1 to 4, characterized in that: An induction iron (31) is installed on the lifting sleeve fixing plate (13), and a limit sensor (30) is arranged on the base of the grinding and polishing machine. The induction iron (31) is located within the induction height of the limit sensor (30) along with the lifting stroke of the lifting sleeve fixing plate (13).

7. A synchronous lifting structure for internal and external gears of a double-sided grinding and polishing machine according to any one of claims 1 to 4, characterized in that: Each lifting screw rod (12) is evenly arranged around the central axis (26) in the circumferential direction. The grinding and polishing machine is provided with a lifting gear (10) coaxially arranged on the outer ring of the central axis (26). The lifting gear (10) is driven to rotate by a power source. The lifting gear (10) is meshed with the lifting nuts (11) of each lifting screw rod (12).

8. The synchronous lifting structure of the internal and external gears of the double-sided grinding and polishing machine according to claim 7, characterized in that: The power source is a driving motor (4), which drives the gear shaft (6) to rotate through a reducer (3) and a coupling (5). A bearing seat (7) is installed in the base of the grinding and polishing machine. The bearing in the bearing seat (7) is rotatably matched with the gear shaft (6), and the reducer gear (8) on the gear shaft (6) is meshed with the lifting gear (10) through a transition gear (9).

9. The synchronous lifting structure of internal and external gears of a double-sided grinding and polishing machine according to any one of claims 1 to 4, characterized in that: The lifting screw rods (12) are provided in three groups, the lifting sleeve fixing plate (13) is an equilateral triangle plate, and the lifting screw rods (12) are fixed on the three corner ends of the lifting sleeve fixing plate (13).

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