A polishing device and a liquid circuit switching device thereof

Abstract

The present invention discloses a polishing device and a liquid circuit switching device thereof. The movable end of the liquid circuit switching device is connected to a grinding head mounting beam of the polishing device, and the liquid circuit switching device comprises a rotating motor, a rotating shaft, a bearing and a bearing pressure cover, wherein the rotating shaft is coaxially connected to the rotating motor, the bearing sleeve is arranged on the rotating shaft and is pressed and fixed by the bearing pressure cover, the bearing pressure cover is provided with a liquid inlet joint and an air inlet joint, the rotating shaft is provided with a liquid guide hole, a liquid outlet joint connected to the liquid guide hole, an air guide groove, and an air outlet joint connected to the air guide groove, the rotating motor drives the rotating shaft to rotate and switch the grinding head, the air outlet joint is communicated with the air inlet joint through the air guide groove when the rotating shaft rotates, and when the rotating shaft rotates so that a liquid guide hole is communicated with the liquid inlet joint, the liquid circuit of the circuit is communicated, and the corresponding liquid outlet joint outputs liquid for spraying polishing liquid when the grinding head is polished, thereby realizing the liquid circuit switching of multiple polishing stations, and the switching method is portable.

Description

Technical Field

[0001] The invention relates to the technical field of polishing equipment, and in particular to a polishing equipment and a liquid path switching device thereof. Background Art

[0002] Polishing refers to a processing method that uses mechanical, chemical or electrochemical effects to reduce the surface roughness of a workpiece to obtain a bright and smooth surface. It is a modification process of the workpiece surface using polishing tools and abrasive particles or other polishing media.

[0003] When the polishing head of the polishing equipment is polishing, it is necessary to spray polishing liquid on the grinding head to reduce the temperature of the grinding head and improve the polishing effect. The existing polishing equipment mainly uses large disc spray devices and serpentine spray devices (such as Figure 1 However, the existing large disc type liquid spraying device and serpentine tube liquid spraying device have the disadvantages of numerous pipelines and uneven liquid spraying. In addition, the existing polishing equipment can only perform one polishing process, and cannot switch the grinding head according to different polishing processes and switch the liquid path when switching the grinding head.

[0004] Therefore the prior art still needs to be improved and enhanced. Summary of the invention

[0005] In view of the above-mentioned deficiencies in the prior art, an object of the present invention is to provide a polishing device and a fluid path switching device thereof, which can automatically switch the fluid path while the rotating motor switches the grinding head.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A liquid circuit switching device for polishing equipment includes a rotating motor, a rotating shaft, a bearing and a bearing cover, wherein the rotating shaft is coaxially connected to the rotating motor, the bearing sleeve is arranged on the rotating shaft and is clamped and fixed by the bearing cover, the bearing cover is provided with a liquid inlet joint and an air inlet joint, the rotating shaft is provided with a plurality of liquid guide holes, a plurality of liquid outlet joints connected to the corresponding liquid guide holes, and an air guide groove and an air outlet joint connected to the air guide groove are also provided, the air outlet joint is communicated with the air inlet joint through the air guide groove, and when the rotating motor drives the rotating shaft to rotate so that a liquid guide hole is communicated with the liquid inlet joint, the liquid circuit of the circuit is communicated, so that the corresponding liquid outlet joint outputs liquid.

[0008] In the liquid path switching device of the polishing equipment, the rotating shaft is provided with a liquid introduction groove, and the liquid guide hole is located in the liquid introduction groove.

[0009] In the liquid path switching device of the polishing equipment, the liquid introduction groove is an arc-shaped groove.

[0010] In the liquid path switching device of the polishing equipment, there are three liquid introduction grooves, three liquid guide holes, and three liquid outlet joints.

[0011] In the liquid path switching device of the polishing equipment, the depth of the liquid introduction groove is 1 / 3-2 / 3 of the diameter of the liquid guide hole.

[0012] In the liquid path switching device of the polishing equipment, a plurality of sealing rings are arranged between the rotating shaft and the bearing gland.

[0013] In the liquid path switching device of the polishing equipment, the sealing rings are arranged on both sides of the liquid guide hole and on both sides of the air guide groove.

[0014] The liquid path switching device of the polishing equipment also includes a waterproof cover arranged between the bearing and the rotating motor, and the waterproof cover is arranged on the bearing.

[0015] In the liquid path switching device of the polishing equipment, the air guide groove is an annular through groove, one side of the air guide groove is connected to the air inlet joint, and the other side of the air guide groove is connected to the air outlet joint.

[0016] A polishing device comprises a grinding head mounting beam and a plurality of rows of grinding heads for polishing mounted on the grinding head mounting beam, and also comprises a liquid circuit switching device of the polishing device as described at any one end above, wherein the liquid outlet joint of the liquid circuit switching device is connected to the liquid inlet hole of the grinding head, and the rotating motor of the liquid circuit switching device drives the grinding head mounting beam to rotate a preset angle, so that a liquid outlet joint is connected to the liquid inlet hole of the corresponding row of grinding heads to supply liquid to the grinding heads.

[0017] Compared with the prior art, the polishing equipment and its liquid circuit switching device provided by the present invention include a rotating motor, a rotating shaft, a bearing and a bearing cover. When the rotating motor drives the rotating shaft to rotate and switch the grinding head, the air outlet joint on the rotating shaft is connected with the air inlet joint of the bearing cover through the air guide groove, and can be used in conjunction with the negative pressure device of the polishing equipment to absorb the glass; when the rotating shaft rotates so that a liquid guide hole on it is connected with the liquid inlet joint of the bearing cover, the liquid circuit is connected, so that the corresponding liquid outlet joint outputs liquid (such as polishing liquid) to the corresponding grinding head, which is used to spray polishing liquid when polishing the grinding head, thereby realizing the liquid circuit switching of multiple polishing stations. The switching method is portable, and the liquid and air supply pipelines are simple, and the maintenance cost is low. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the serpentine tube spray mechanism in the prior art.

[0019] Figure 2 A schematic diagram of the exploded structure of the liquid path switching device of the polishing equipment provided by the present invention.

[0020] Figure 3A schematic cross-sectional structure diagram of a liquid path switching device for a polishing device provided by the present invention.

[0021] Figure 4 A schematic diagram of the rotating shaft structure of the liquid circuit switching device of the polishing equipment provided by the present invention.

[0022] Figure 5 A schematic structural diagram of a grinding head mounting beam and a grinding head of the polishing equipment provided by the present invention. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and effect of the present invention clearer and more specific, the present invention is further described in detail with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0024] It should be noted that when a component is referred to as being "mounted on", "fixed on" or "disposed on" another component, it may be directly on the other component or there may be a central component at the same time. When a component is referred to as being "connected to" another component, it may be directly connected to the other component or there may be a central component at the same time.

[0025] It should also be noted that the directional terms such as left, right, up, and down in the embodiments of the present invention are merely relative concepts or are based on the normal use status of the product and should not be considered as restrictive.

[0026] The polishing device used in the liquid path switching device provided by the present invention is provided with a grinding head mounting beam (such as Figure 5 As shown), a row of grinding heads 300 are respectively arranged on the three sides of the grinding head mounting beam 200. The present invention is mainly used for automatically switching to the corresponding liquid path when the grinding head mounting beam switches the polishing station.

[0027] See also Figure 2 , Figure 3 and Figure 5 The liquid circuit switching device of the polishing equipment provided by the present invention has a movable end connected to the grinding head mounting beam 200 of the polishing equipment, and includes a rotating motor 1, a rotating shaft 2, a bearing 3 and a bearing cover 4. The rotating shaft 2 is coaxially connected to the rotating motor 1, and one end of the rotating shaft 2 is connected to the grinding head mounting beam 200. A plurality of grinding heads 300 are arranged on the grinding head mounting beam 200. When the rotating shaft 2 rotates, the rotating shaft 2 and the grinding head mounting beam 200 both rotate to realize the switching of the polishing liquid circuit and the grinding head 300 on the grinding head mounting beam.

[0028] like Figure 2 , Figure 3As shown, the bearing 3 is sleeved on the rotating shaft 2 and is fixed by the bearing pressure cover 4. The bearing pressure cover 4 is provided with a liquid inlet joint 41 and an air inlet joint 42. The rotating shaft 2 is provided with a plurality of liquid guide holes 21, a plurality of liquid outlet joints 22 connected with the corresponding liquid guide holes 21, and an air guide groove 23 and an air outlet joint 24 connected with the air guide groove 23. The air outlet joint 24 is communicated with the air inlet joint 42 through the air guide groove 23, and is used to absorb glass in conjunction with a negative pressure device (not shown in the figure) of the polishing equipment. When the rotating motor 1 drives the rotating shaft 2 to rotate so that a liquid guide hole 21 is communicated with the liquid inlet joint 41, the liquid path of the path is communicated, so that the corresponding liquid outlet joint 22 outputs liquid to supply the corresponding grinding head 300.

[0029] The present invention switches the polishing station by rotating the rotating shaft. The air inlet joint 42 maintains air communication with the liquid inlet joint 41 through the air guide groove 23, and is used to absorb glass in combination with the negative pressure device (not shown in the figure) of the polishing equipment to realize the loading and unloading of glass; when the rotating shaft rotates to a certain liquid path, the polishing liquid is transported to the grinding head (not shown in the figure) of the corresponding station, and is used to spray the polishing liquid when polishing the glass. In addition, through the liquid guide hole 21, the polishing liquid is simultaneously output from the rotating shaft 2 to the liquid inlet holes of each grinding head to realize uniform spraying of the polishing liquid, so as to improve the product quality. The present invention uses fewer air supply pipelines and liquid supply pipelines, and the air and liquid circuits are controlled separately, which is more conducive to operation. At the same time, when the rotating shaft 2 rotates, the bearing pressure cover 4 does not rotate, and the air supply pipeline and the liquid supply pipeline will not be entangled when the rotating shaft rotates.

[0030] Furthermore, a liquid infusion hole 43 and an air infusion hole 44 are provided on the bearing gland 4, and the liquid inlet connector 41 is connected to the liquid infusion hole 43; the air inlet connector 42 is connected to the air infusion hole 44, and is respectively connected to the liquid guide hole 21 and the air guide groove 23 on the rotating shaft 2 through the liquid infusion hole 43 and the air guide hole 44.

[0031] Please also read Figure 4 The rotating shaft 2 has a liquid introduction groove 25, and the liquid guide hole 21 is located in the liquid introduction groove 25. When the liquid path is switched, the liquid infusion hole 43 only needs to be rotated to the liquid introduction groove 25, and the polishing liquid can be introduced into the liquid guide hole 21 through the liquid introduction groove 25 and the liquid infusion hole 43. Specifically, the liquid introduction groove 25 is an arc groove, which is adapted to the inner edge of the bearing gland 4 to facilitate the rotation of the rotating shaft 2.

[0032] In this practical example, there are three liquid introduction grooves 25, three liquid guide holes 21, and three liquid outlet joints 22, and there are also three grinding heads on the grinding head mounting beam 200, so that the grinding heads 300 at different workstations can automatically switch to the corresponding liquid circuits.

[0033] More specifically, the depth of the liquid introduction groove 25 is 1 / 3-2 / 3 of the diameter of the liquid guide hole 21 , which can ensure the strength of the rotating shaft 2 and enable the polishing liquid to be quickly introduced into the liquid guide hole 21 .

[0034] The air guide groove 23 is an annular through groove, one side of the air guide groove 23 is connected to the air inlet joint 42, and the other side of the air guide groove 23 is connected to the air outlet joint 24, so that when the rotating shaft 2 rotates, the air path is kept connected. The air guide groove 23 is arranged near the outer wall of the rotating shaft 2, and the liquid guide hole 21 is arranged near the through hole of the inner wall of the rotating shaft 2, and the two channels are staggered and do not interfere with each other.

[0035] Please continue reading Figure 2 and Figure 3 , a plurality of sealing rings 5 ​​are arranged between the rotating shaft 2 and the bearing cover 4, wherein two of the sealing rings 5 ​​are arranged at the matching position between the inner wall of the through hole 45 of the bearing cover 4 and the rotating shaft 2, and are located between the liquid inlet joint 41 and the liquid introduction groove 25, that is, the two sealing rings 5 ​​are located on both sides of the liquid guide hole 21, to avoid leakage when the polishing liquid is introduced into the liquid guide hole 21. Two of the sealing rings 5 ​​are also arranged at the matching position between the end face of the bearing cover 4 and the rotating shaft 2, and are located between the air inlet joint 42 and the air guide groove 23, that is, the two sealing rings 5 ​​are located on both sides of the air guide groove 23, to avoid leakage when the air path is connected, which affects the adsorption force of the negative pressure device of the polishing equipment.

[0036] Furthermore, the liquid circuit switching device of the polishing equipment also includes a waterproof cover 6 arranged between the bearing 3 and the rotating motor 1, and the waterproof cover 6 is arranged on the bearing 3. The waterproof cover 6 can prevent the polishing liquid from being sprayed onto the bearing 3 during polishing by the polishing equipment, thereby extending the service life of the bearing 3.

[0037] Furthermore, it also includes a mounting seat 7, the rotating motor 1 is installed in the mounting seat 7, and the liquid path switching device of the polishing equipment is installed on the polishing equipment through the mounting seat 7.

[0038] Based on the above-mentioned liquid circuit switching device of the polishing equipment, the present invention also provides a polishing equipment accordingly, please refer to Figure 2 , Figure 3 and Figure 5 It includes a grinding head mounting beam 200, a plurality of rows of grinding heads 300 for polishing mounted on the grinding head mounting beam 200, and a liquid circuit switching device of the above-mentioned polishing equipment, wherein the liquid outlet connector 22 of the liquid circuit switching device is connected to the liquid inlet hole of the grinding head (not shown in the figure). When the liquid circuit switching device drives the grinding head mounting beam 200 to rotate a preset angle to switch the grinding head, the corresponding liquid outlet connector 22 is simultaneously switched to be connected to the liquid inlet hole of the grinding head in the corresponding row, so as to supply liquid to the grinding head 300.

[0039] Specifically, there are three rows of grinding heads on the grinding head mounting beam, and adjacent grinding heads are arranged at an angle of 90 degrees. The position of the liquid outlet joint 22 corresponds one to one with the position of the grinding head. When the grinding head mounting beam is rotated 90 degrees, the grinding head is switched, and the liquid circuit is switched at the same time as the grinding head is switched.

[0040] To summarize, in the polishing equipment and its liquid circuit switching device provided by the present invention, the air guide groove and the air inlet joint of the bearing pressure cover remain in a connected state when the rotating shaft rotates, and can be used in conjunction with the negative pressure device of the polishing equipment to absorb glass; when the rotating motor drives the rotating shaft to rotate and switch the grinding head of the corresponding station, the rotating shaft rotates so that a liquid guide hole on it is connected to the liquid inlet joint of the bearing pressure cover, thereby realizing the liquid circuit connection, and the corresponding liquid outlet joint outputs liquid (such as polishing liquid) to the corresponding grinding head, which is used to spray polishing liquid when the grinding head is polishing, thereby realizing the liquid circuit switching of multiple polishing stations.

[0041] In addition, the present invention has a simple structure, realizes automatic switching of the liquid circuit, and the air supply and liquid supply pipelines will not be entangled during the switching process, which is convenient for the station switching operation. And through a liquid inlet hole, the grinding head of the same station is supplied with liquid at the same time, so that the polishing liquid is sprayed evenly, which is conducive to providing consistency in product polishing.

[0042] It is understandable that those skilled in the art can make equivalent substitutions or changes based on the technical solution and inventive concept of the present invention, and all these changes or substitutions should fall within the protection scope of the claims attached to the present invention.

Claims

1. A liquid circuit switching device for a polishing device, characterized in that: It includes a rotating motor, a rotating shaft, a bearing and a bearing gland, wherein the rotating shaft is coaxially connected with the rotating motor, the bearing sleeve is arranged on the rotating shaft and is fixed by the bearing gland, the bearing gland is provided with a liquid inlet joint and an air inlet joint, the rotating shaft is provided with a plurality of liquid guide holes, a plurality of liquid outlet joints connected with the corresponding liquid guide holes, an air guide groove, and an air outlet joint connected with the air guide groove, the air outlet joint is communicated with the air inlet joint through the air guide groove, and the air path is kept in communication when the rotating shaft rotates, and the negative pressure device combined with the polishing equipment is used to absorb the glass, and when the rotating motor drives the rotating shaft to rotate so that a liquid guide hole is communicated with the liquid inlet joint, the liquid path of the path is communicated, so that the corresponding liquid outlet joint outputs liquid; The rotating shaft is provided with a liquid introduction groove, the liquid guide hole is located in the liquid introduction groove, the bearing gland is provided with a liquid infusion hole and an air infusion hole, the liquid inlet joint is communicated with the liquid infusion hole, the air inlet joint is communicated with the air infusion hole, and the liquid infusion hole and the air infusion hole are respectively communicated with the liquid guide hole and the air guide groove on the rotating shaft. When the liquid circuit is switched, the liquid introduction groove rotates to the liquid infusion hole, and the polishing liquid can be introduced into the liquid guide hole through the liquid introduction groove via the liquid infusion hole; The liquid introduction groove is an arc-shaped groove, and there are three of the liquid introduction groove, the liquid guide hole, and the liquid outlet joint. The depth of the liquid introduction groove is 1 / 3-2 / 3 of the diameter of the liquid guide hole.

2. The liquid path switching device of the polishing equipment according to claim 1, characterized in that: A plurality of sealing rings are arranged between the rotating shaft and the bearing gland.

3. The liquid path switching device of the polishing equipment according to claim 2, characterized in that: The sealing rings are arranged on both sides of the liquid guide hole and on both sides of the air guide groove.

4. The liquid path switching device of the polishing equipment according to claim 3, characterized in that: It also includes a waterproof cover arranged between the bearing and the rotating motor, and the waterproof cover is arranged on the bearing.

5. The liquid path switching device of the polishing equipment according to claim 1, characterized in that: The air guide groove is an annular through groove, one side of the air guide groove is connected to the air inlet joint, and the other side of the air guide groove is connected to the air outlet joint.

6. A polishing device, comprising a grinding head mounting beam and a plurality of rows of grinding heads for polishing mounted on the grinding head mounting beam, characterized in that: It also includes a liquid circuit switching device for the polishing equipment as described in any one of claims 1 to 5, wherein the liquid outlet connector of the liquid circuit switching device is connected to the liquid inlet hole of the grinding head, and the rotating motor of the liquid circuit switching device drives the grinding head mounting beam to rotate at a preset angle, so that a liquid outlet connector is connected to the liquid inlet hole of the corresponding row of grinding heads to supply liquid to the grinding heads.

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