Grinding machine

Abstract

The application discloses a grinding machine, which comprises a rotating mechanism, a rotary joint and a connecting assembly. The rotating mechanism comprises a rotating table and a mounting frame. The rotating table comprises a base and a rotating platform. The rotating platform is installed on the base and can rotate relative to the base. The mounting frame is installed on the side of the rotating platform away from the base. The rotary joint comprises a shell and a rotating shaft. The shell is connected to the side of the mounting frame away from the rotating platform. The rotating shaft is installed in the shell and can rotate relative to the shell. The connecting assembly is installed in the rotating mechanism and fixedly connected to the base. In the first direction, the connecting assembly at least partially extends to the side of the mounting frame close to the shell and is fixedly connected to the rotating shaft through the shell. The application solves the problem that the connection mode of the rotary joint occupies a large space of the grinding machine.

Description

Technical Field

[0001] This application relates to the field of machine tool technology, and more specifically, to a grinding machine. Background Technology

[0002] Rotary joints, as connecting components for conveying fluid media such as oil, liquid, and gas, are widely used in the grinding machine field. A rotary joint typically includes a housing and a rotating shaft mounted within the housing. The rotating shaft is at least partially located outside the housing and can rotate relative to it. Both the housing and the rotating shaft are provided with flow channels for the fluid media to pass through. Currently, to ensure reliable installation of water, oil, and air pipelines in grinding machines, the rotary joint is mounted on the rotating frame of the grinding machine's rotary table via its rotating shaft. A fixing bracket then secures the base of the rotary table to the housing of the rotary joint. However, this connection method occupies a significant amount of space on the grinding machine, making it difficult to apply in scenarios limited by installation space or the overall structure of the equipment. Summary of the Invention

[0003] The main objective of this application is to provide a grinding machine to solve the problem that the rotary joint connection method in the prior art occupies a large space in the grinding machine.

[0004] According to one aspect of this application, a grinding machine is provided, comprising:

[0005] A rotating mechanism, comprising a turntable and a mounting bracket, wherein the turntable comprises a base and a rotating platform, the rotating platform is mounted on the base and is rotatable relative to the base, and the mounting bracket is mounted on the side of the rotating platform away from the base;

[0006] A rotary joint, comprising a housing and a rotating shaft, wherein the housing is connected to the side of the mounting bracket away from the rotating table, and the rotating shaft is mounted inside the housing and is rotatable relative to the housing;

[0007] A connecting assembly is installed within the rotating mechanism and fixedly connected to the base, and, along a first direction, the connecting assembly extends at least partially to the side of the mounting bracket near the housing and passes through the housing to be fixedly connected to the rotating shaft.

[0008] Furthermore, the rotating mechanism is provided with a first channel, which sequentially passes through the turntable and the mounting frame, and the connecting assembly includes:

[0009] A connecting component is installed in the first channel. The side of the connecting component near the base is fixedly connected to the base, and the side away from the base extends out of the mounting frame. Along the first direction, the side of the connecting component away from the base passes through the rotary joint and extends to the end of the rotating shaft away from the housing. The mounting frame and the housing can rotate relative to the connecting component under the drive of the rotating table.

[0010] A fixing component is provided at the end of the rotating shaft away from the housing and fixes the connecting component to the rotating shaft.

[0011] Furthermore, the first channel is disposed through the rotating mechanism along a first direction, and a second channel is disposed within the rotating joint. The second channel passes through the housing and the rotating shaft along the first direction and communicates with the first channel. The connecting component includes:

[0012] A connecting rod passes through the first channel and the second channel and is fixedly connected to the fixing component, and the connecting rod is clearance-fitted with the first channel and the second channel;

[0013] A connecting block, along a first direction, is disposed at the end of the connecting rod away from the fixed component and is fixedly connected to the bottom of the base away from the mounting bracket.

[0014] Further, along the first direction, the rotary joint has a first position close to the mounting bracket and allowing the housing to rotate with the mounting bracket, and a second position movable to a position separate from the mounting bracket, the fixing component comprising:

[0015] A flange is mounted on the end face of the rotating shaft away from the housing along a first direction. A stop structure is provided between the connecting rod and the flange. When the rotary joint is in the first position, the stop structure stops the rotating shaft in a position that keeps it stationary relative to the connecting rod.

[0016] Furthermore, along the first direction, a first through hole is provided through the flange, and the first through hole communicates with the second channel. The end of the connecting rod away from the connecting block passes through the first through hole, and the connecting rod is adapted to the inner wall surface of the first through hole. The stop structure includes:

[0017] The first stop portion is disposed on the inner wall surface of the first through hole. The first stop portion includes a first plane and a first arc-shaped surface. The first plane is adjacent to the opposite sides of the first arc-shaped surface along its own circumference.

[0018] The second stop is disposed on the outer periphery of the end of the connecting rod away from the connecting block. The second stop includes a second plane and a second arcuate surface. The second plane is adjacent to the two opposite sides of the second arcuate surface along its own axial direction.

[0019] When the rotary joint is in the first position, the first plane and the second plane are in contact with each other.

[0020] Furthermore, the fixing component also includes:

[0021] A locking structure is provided on the side of the flange away from the rotating shaft. The locking structure has a third position connected to the connecting rod and a fourth position separated from the connecting rod. When the locking structure is in the third position, it locks the rotary joint to the first position. When the locking structure is in the fourth position, it unlocks the rotary joint to the second position.

[0022] Furthermore, the locking structure includes:

[0023] A pressure plate is disposed on the surface of the flange away from the rotating shaft and covers the first through hole;

[0024] Fasteners that press the pressure plate onto the flange and are detachably connected to the connecting rod.

[0025] Furthermore, the connection component also includes:

[0026] A support member is installed on one end of the mounting bracket near the rotary joint. The support member has a second through hole, which is connected to and coaxially arranged with the first channel and the second channel. The second through hole is adapted to the connecting rod and is sleeved on the outer periphery of the connecting rod.

[0027] Further, the first channel includes a first channel segment and a second channel segment. The first channel segment is disposed through the turntable. A groove is provided at one end of the mounting bracket near the rotary joint. A third through hole is provided at the bottom of the groove. A mounting cavity is provided inside the mounting bracket. The mounting cavity communicates between the first channel segment and the third through hole and forms the second channel segment with the third through hole. The support member includes:

[0028] A copper sleeve is fixed to the bottom of the groove away from the rotary joint, and a second through hole is provided inside the copper sleeve and communicates with the third through hole.

[0029] Furthermore, the turntable also includes a driving component, which comprises a driving element and a mounting element. The mounting element mounts the driving element onto the base. The turntable includes:

[0030] A shaft core, which is connected to the driving component and can rotate about its own axis under the drive of the driving component, and the axis of the shaft core is parallel to a first direction;

[0031] A first connecting plate is mounted on the side of the shaft away from the base;

[0032] The second connecting plate is mounted on the surface of the first connecting plate away from the shaft core and is fixedly connected to the mounting bracket.

[0033] Along the first direction, the first channel is sequentially disposed within the base, the shaft core, the first connecting plate, the second connecting plate, and the mounting bracket.

[0034] In this application, the grinding machine includes a rotating mechanism, a rotary joint, and a connecting assembly. The rotating mechanism includes a turntable and a mounting frame. The housing of the rotary joint is connected to the side of the mounting frame away from the turntable. The rotating shaft of the rotary joint is installed inside the housing and can rotate relative to the housing. The connecting assembly is installed inside the rotating mechanism and fixedly connected to a base. Furthermore, along a first direction, the connecting assembly at least partially extends to the side of the mounting frame near the housing and passes through the housing to be fixedly connected to the rotating shaft. Therefore, this embodiment achieves fixed connection between the base and the rotating shaft through a connecting assembly installed inside the rotating mechanism. The connecting assembly does not occupy space outside the rotating mechanism of the grinding machine to install the rotary joint. This is suitable for scenarios where installation space is limited or the overall structural volume of the grinding machine is restricted, resulting in a smaller space occupied by the grinding machine, reducing its overall volume, and improving the compactness of the overall structure. Attached Figure Description

[0035] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0036] Figure 1 This is a schematic diagram of the structure of a grinding machine provided in an embodiment of the present invention;

[0037] Figure 2 This is a schematic diagram of the assembly of the rotating mechanism and rotary joint of a grinding machine;

[0038] Figure 3 for Figure 2 A sectional view;

[0039] Figure 4 for Figure 3A schematic diagram of the method in Part A;

[0040] Figure 5 An exploded view of the rotary joint and the fixed components;

[0041] Figure 6 This is an exploded view of the rotating mechanism and the flange.

[0042] The above figures include the following reference numerals:

[0043] 00. Rotating mechanism; 01. First channel; 011. First channel section; 012. Second channel section; 10. Turntable; 11. Base; 12. Rotating platform; 121. Shaft core; 122. First connecting plate; 123. Second connecting plate; 20. Mounting bracket; 21. Groove; 211. Third through hole; 22. Mounting cavity; 30. Rotary joint; 31. Housing; 32. Rotating shaft; 33. Second channel; 40. Connecting assembly; 41. Connecting component; 411. Connecting rod; 412. Connecting block; 42. 421. Fixed component; 421. Flange; 4211. First through hole; 422. Locking structure; 221. Pressure plate; 222. Fastener; 43. Copper sleeve; 431. Second through hole; 50. Stop structure; 51. First plane; 52. First arc-shaped surface; 53. Second plane; 54. Second arc-shaped surface; 60. Drive component; 61. Motor; 611. Stator; 612. Rotor; 62. Fixed sleeve; 70. First protective shell; 80. Second protective shell; 90. Cable chain; 100. Grinding wheel component. Detailed Implementation

[0044] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0045] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0046] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this application. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0047] Because the existing rotary joint 30 requires a large mounting bracket to install on the rotary table of the grinding machine when mounted on a grinding machine, the mounting bracket is the mounting bracket 20 mentioned below in this embodiment of the invention. The mounting bracket 20 is mainly used to install the grinding tools of the grinding machine. To ensure that the pipes connected to the rotary joint 30 do not become entangled during the rotation of the mounting bracket 20, the prior art usually uses a mounting bracket to fix the base 11 of the grinding machine rotary table 10 and the outer shell of the rotary joint 30 together. For this purpose, the mounting bracket is usually designed as a large connecting frame structure with a bending structure (such as a frame structure bent into a U-shape). After the rotating shaft 32 of the rotary joint 30 is fixedly connected to the rotating frame, one end of the fixed frame is fixedly connected to the base 11 at the bottom of the turntable 10. The other end of the fixed frame needs to extend from the outside of the turntable 10 and bend it so that it can be fixedly connected to the outer shell of the rotary joint 30. Finally, the rotary joint 30 is installed between the fixed frame and the rotating frame of the grinding machine. In this connection method, the rotary joint 30 is located between the fixed frame and the rotating frame. The fixed frame occupies a large installation space of the grinding machine, resulting in the connection method of the rotary joint 30 occupying a large space of the grinding machine.

[0048] To address the above problems, the first embodiment of the present invention provides a grinding machine, please refer to [link to relevant documentation]. Figures 1 to 6 The grinding machine includes a rotary mechanism 00, a rotary joint 30, and a connecting assembly 40. The rotary mechanism 00 includes a turntable 10 and a mounting bracket 20. The turntable 10 includes a base 11 and a rotating platform 12. The rotating platform 12 is mounted on the base 11 and can rotate relative to the base 11. The mounting bracket 20 is mounted on the side of the rotating platform 12 away from the base 11, and the mounting bracket 20 is positioned along a second direction (e.g.,...). Figure 1 Grinding components can be installed on opposite sides (in the direction indicated by the middle arrow Y), thereby enabling the rotary table 12 to drive the grinding components on the mounting frame 20 to rotate and process the workpiece.

[0049] The rotary joint 30 includes a housing 31 and a rotating shaft 32. The housing 31 is connected to the side of the mounting bracket 20 away from the rotating table 12. The rotating shaft 32 is installed inside the housing 31 and can rotate relative to the housing 31. The connecting assembly 40 is installed inside the rotating mechanism 00 and fixedly connected to the base 11, and, along a first direction (e.g., Figure 1 The direction indicated by the arrow X (which is also the axial direction of the connecting rod 411 mentioned below) is such that the connecting assembly 40 extends at least partially to the side of the mounting bracket 20 near the housing 31 and passes through the housing 31 to be fixedly connected to the rotating shaft 32. Thus, the connecting assembly 40 can install the rotary joint 30 without occupying external space of the turntable 10, saving installation space on the grinding machine and contributing to the compactness and integration of the grinding machine structure. During the operation of the turntable 10, while the turntable 12 drives the mounting bracket 20 to rotate, the housing 31 of the rotary joint 30 can rotate with the mounting bracket 20, while the rotating shaft 32 remains stationary with the base 11. This allows the fluid medium used in the grinding machine to be transported through the rotary joint 30 during operation, avoiding entanglement of the pipelines transporting the corresponding fluid medium.

[0050] As can be seen, in this embodiment, the grinding machine includes a rotating mechanism 00, a rotary joint 30, and a connecting assembly 40. The rotating mechanism 00 includes a turntable 10 and a mounting frame 20. The housing 31 of the rotary joint 30 is connected to the side of the mounting frame 20 away from the turntable 12. The rotating shaft 32 of the rotary joint 30 is installed inside the housing 31 and can rotate relative to the housing 31. The connecting assembly 40 is installed inside the rotating mechanism 00 and fixedly connected to the base 11. Furthermore, along a first direction, the connecting assembly 40 at least partially extends to the side of the mounting frame 20 near the housing 31 and passes through the housing 31 to be fixedly connected to the rotating shaft 32. Thus, this embodiment achieves the fixed connection of the base 11 and the rotating shaft 32 by the connecting assembly 40 installed inside the rotating mechanism 00. The connecting assembly 40 does not occupy the space outside the rotating mechanism 00 of the grinding machine to install the rotary joint 30. This is suitable for scenarios where installation space is limited or the overall structural volume of the grinding machine is limited, resulting in a smaller space occupied by the grinding machine, reducing the overall volume of the grinding machine, and improving the compactness of the overall structure of the grinding machine. Reducing the size of the grinding machine also facilitates its transportation, thereby reducing the difficulty and cost of transportation.

[0051] like Figure 3 and Figure 4As shown, the rotating mechanism 00 has a first channel 01 that sequentially passes through the turntable 10 and the mounting frame 20. The connecting assembly 40 includes a connecting component 41 and a fixing component 42. The connecting component 41 is installed in the first channel 01. The side of the connecting component 41 closest to the base 11 is fixedly connected to the base 11, and the side away from the base 11 extends out of the mounting frame 20. Along the first direction, the side of the connecting component 41 away from the base 11 passes through the rotary joint 30 and extends to the end of the rotating shaft 32 away from the housing 31. The mounting frame 20 and the housing 31 can rotate relative to the connecting component 41 under the drive of the turntable 12. The fixing component 42 is located at the end of the rotating shaft 32 away from the housing 31 and fixes the connecting component 41 to the rotating shaft 32.

[0052] Therefore, in this embodiment, the connecting component 41 installed in the first channel 01 extends from the side away from the base 11 to the outside of the mounting bracket 20, and extends through the housing 31 and rotary joint 30 along the first direction to the end of the rotating shaft 32 away from the housing 31. Then, the connecting component 41 and the rotating shaft 32 are fixedly connected by a fixing member located at the end of the rotating shaft 32 away from the housing 31. The connection is simple and convenient. The rotating shaft 32 can be fixed to the base 11 by the connecting component 41 without disassembling the housing 31 and the rotating shaft 32 of the rotary joint 30. The assembly difficulty is low, and the assembly efficiency between the connecting component 40 and the rotary joint 30 can be improved.

[0053] A first channel 01 is disposed through the rotating mechanism 00 along a first direction. A second channel 33 is disposed within the rotary joint 30. The second channel 33 passes through the housing 31 and the rotating shaft 32 along the first direction and communicates with the first channel 01. The connecting component 41 provided in this embodiment includes a connecting rod 411 and a connecting block 412. The connecting rod 411 passes through the first channel 01 and the second channel 33 and is fixedly connected to the fixing component 42. The connecting rod 411 is clearance-fitted with the first channel 01 and the second channel 33 so that the housing 31 of the mounting frame 20 and the rotary joint 30 can rotate relative to the connecting rod 411 and the rotating shaft 32 under the drive of the rotating table 12, ensuring the reliability of the rotating mechanism 00 and the rotary joint 30 during the operation of the grinding machine. Along the first direction, the connecting block 412 is disposed at the end of the connecting rod 411 away from the fixing component 42 and is fixedly connected to the bottom of the base 11 away from the mounting frame 20.

[0054] Therefore, in this embodiment, after the connecting rod 411 is installed in the first channel 01 via the connecting block 412, the section of the connecting rod 411 away from the connecting block 412 is located outside the mounting frame 20. When installing the rotary joint 30, the second channel 33 inside the rotary joint 30 is fitted onto the section of the connecting rod 411 extending out of the mounting frame 20, and the connecting rod 411 is fixedly connected to the rotating shaft 32 via the fixing component 42. This ensures that during the operation of the turntable 10, the rotating shaft 32 can remain relatively stationary with respect to the base 11, while the housing 31 of the rotary joint 30 can rotate relative to the rotating shaft 32 with respect to the mounting frame 20. This makes assembly efficient and convenient, and facilitates the disassembly and maintenance of the rotary joint 30. In this embodiment, the connecting rod 411 not only does not occupy the external space of the rotating mechanism 00, but also occupies less space within the rotating mechanism 00 and the rotary joint 30. While saving installation space on the grinding machine, it ensures the structural strength of the rotating mechanism 00 and the rotary joint 30. Furthermore, the processing and assembly of the connecting rod 411 are convenient, quick, and cost-effective.

[0055] In this embodiment, the second channel 33 includes a first channel segment and a second channel segment. Along the first direction, the first channel segment is disposed through the bottom of the housing 31 near the mounting bracket 20, and the second channel segment is disposed through the rotating shaft 32. The second channel segment and the first channel segment are coaxially arranged and interconnected. The first channel segment and the second channel segment not only do not reduce the structural strength of the rotary joint 30, but also, since the second channel segment is offset from the flow channel for fluid medium circulation in the rotating shaft 32, it does not affect the transfer of fluid medium by the rotary joint 30.

[0056] Along the first direction, the rotary joint 30 has a first position close to the mounting bracket 20, allowing the housing 31 to rotate with the mounting bracket 20, and a second position movable to a position separated from the mounting bracket 20. That is, in the first position, the rotary joint 30 is mounted on the mounting bracket 20, in which the housing 31 of the rotary joint 30 can rotate under the influence of the mounting bracket 20; the second position is where the rotary joint 30 can be removed from the mounting bracket 20, thereby facilitating the disassembly and maintenance of the rotary joint 30. See also... Figures 2 to 6 In this embodiment, the fixing component 42 includes a flange 421. Along the first direction, the flange 421 is installed on the end face of the rotating shaft 32 away from the housing 31. A stop structure 50 is provided between the connecting rod 411 and the flange 421. When the rotating joint 30 is in the first position, the stop structure 50 stops the rotating shaft 32 in a position that keeps it stationary relative to the connecting rod 411.

[0057] Therefore, in this embodiment, only a flange 421 needs to be installed on the end face of the rotating shaft 32, and a stop structure 50 is provided between the flange 421 and the connecting rod 411. When the rotating joint 30 is in the first position and the housing 31 is rotated by the mounting bracket 20, the stop structure 50 can stop the rotating shaft 32 in a position that keeps it stationary relative to the connecting rod 411, thus ensuring that the rotating shaft 32 remains stationary.

[0058] In some embodiments, the stop structure 50 can be a limiting hole and a limiting protrusion. For example, the limiting hole can be set on the side of the connecting rod 411 near the flange 421, and the limiting protrusion can be set on the side of the flange 421 near the connecting rod 411. The limiting protrusion is adapted to the limiting hole and inserted into the limiting hole to stop and limit the rotation shaft 32.

[0059] In some embodiments, a first through hole 4211 is provided through the flange 421 along the first direction, and the first through hole 4211 communicates with the second channel 33. One end of the connecting rod 411 away from the connecting block 412 passes through the first through hole 4211, and the connecting rod 411 is adapted to the inner wall surface of the first through hole 4211. In this case, the stop structure 50 may include a first stop portion and a second stop portion. The first stop portion is disposed on the inner wall surface of the first through hole 4211, such as... Figure 6 As shown, the first stop includes a first plane 51 and a first arcuate surface 52, with the first plane 51 adjacent to opposite sides of the first arcuate surface 52 along its circumference. The second stop is located on the outer periphery of the end of the connecting rod 411 away from the connecting block 412, and includes a second plane 53 and a second arcuate surface 54, with the second plane 53 adjacent to opposite sides of the second arcuate surface 54 along its axial direction. When the rotary joint 30 is in the first position, the first plane 51 and the second plane 53 are in contact with each other.

[0060] Therefore, during the rotation of the housing 31 of the rotary joint 30 with the mounting bracket 20, when the first plane 51 and the second plane 53 are in contact with each other, if the rotating shaft 32 has a tendency to rotate with the housing 31, it will be stopped by the first arc-shaped surface 52 and the second arc-shaped surface 54, thereby stopping the rotating shaft 32 in a position that keeps it stationary relative to the connecting rod 411. Furthermore, in this embodiment, when processing the stop structure 50, it is only necessary to design the first through hole 4211 as a circular hole and process a first plane 51 on a portion of the inner wall of the circular hole; and to design the connecting rod 411 as a round rod and process a second plane 53 on the outer periphery of the portion of the round rod located inside the first through hole 4211. The processing is simple, convenient, and low in difficulty. Moreover, when the second plane 53 on the connecting rod 411 is fitted with the first plane 51 inside the first through hole 4211, engineers can intuitively observe the positional relationship between the first plane 51 and the second plane 53, further improving the convenience for engineers in connecting the rotary joint 30 and the connecting rod 411.

[0061] To ensure the stability of the rotary joint 30 on the mounting bracket 20 when it is in the first position, the housing 31 can be detachably connected to the mounting bracket 20 via fasteners 222 (such as screws or bolts). To further improve the stability and firmness of the connection between the connecting rod 411 and the rotating shaft 32, and to reduce the difficulty of disassembling the rotary joint 30, the fixing component 42 in this embodiment also includes a locking structure 422. The locking structure 422 is located on the side of the flange 421 away from the rotating shaft 32. The locking structure 422 has a third position connected to the connecting rod 411 and a fourth position separated from the connecting rod 411. When the locking structure 422 is in the third position, the rotary joint 30 is locked in the first position. When the locking structure 422 is in the fourth position, the rotary joint 30 is unlocked to the second position. Therefore, in this embodiment, the rotary joint 30 can be locked in the first position when the locking structure 422 is connected to the connecting rod 411, and the rotary joint 30 can be unlocked to the second position when the locking structure 422 is separated from the connecting rod 411, thus facilitating the removal of the rotary joint 30 and making disassembly convenient. Furthermore, when the locking structure 422 is connected to the connecting rod 411, the connection strength and stability between the connecting rod 411 and the rotating shaft 32 are further improved, preventing slight wobbling of the connecting rod 411, improving the overall reliability of the grinding machine structure, and reducing noise during operation. At this time, regardless of whether the housing 31 is connected and fixed to the mounting bracket 20, the stability of the rotary joint 30 on the mounting bracket 20 can be ensured. Of course, the stability of the rotary joint 30 is even better when the locking structure 422 and the housing 31 are also fixed to the mounting bracket 20.

[0062] The locking structure 422 in this embodiment includes a pressure plate 221 and a fastener 222. The area of ​​the pressure plate 221 is larger than the area of ​​the first through hole 4211. The pressure plate 221 is disposed on the surface of the flange 421 away from the rotating shaft 32 and covers the first through hole 4211. The fastener 222 presses the pressure plate 221 onto the flange 421 and detachably connects it to the connecting rod 411. Thus, this embodiment achieves both fixing and restricting the rotary joint 30 to the first position and further improving the connection stability and reliability between the connecting rod 411 and the rotating shaft 32. The assembly is simple, efficient, and convenient. The fastener 222 may specifically include either a screw or a bolt. In this case, a threaded hole adapted to the screw or bolt can be provided on the top of the connecting rod 411 near the pressure plate 221. Thus, by screwing the screw or bolt into the threaded hole in the connecting rod 411, a detachable connection with the connecting rod 411 can be achieved, making assembly convenient.

[0063] The connecting assembly 40 also includes a support member, which is installed at one end of the mounting frame 20 near the rotary joint 30. The support member has a second through hole 431, which communicates with and is coaxially aligned with the first channel 01 and the second channel 33. The second through hole 431 is adapted to the connecting rod 411 and is fitted around its outer periphery. In other words, by having the connecting rod 411 pass through the second through hole 431 of the support member, this embodiment ensures better coaxiality between the rotary joint 30, the turntable 10, the mounting frame 20, and the housing 31 of the rotary joint 30 after the rotary joint 30 is installed on the mounting frame 20. This further reduces the installation space required for the rotary joint 30, the turntable 10, and the mounting frame 20 in the grinding machine, as well as the overall structural complexity, making the overall structure of the grinding machine more compact and reliable. Furthermore, maintaining coaxiality improves the installation alignment accuracy between the rotary joint 30 and the mounting frame 20, reduces vibration and wear during the rotation of the mounting frame 20 with the housing 31, and extends the service life of the mounting frame 20 and the rotary joint 30. At the same time, the addition of the support component increases the rigidity of the connecting rod 411, further improving its stability.

[0064] In this embodiment, the first channel 01 includes a first channel segment 011 and a second channel segment 012, with the first channel segment 011 extending through the turntable 10. A groove 21 is provided at one end of the mounting bracket 20 near the rotary joint 30, and a third through hole 211 is provided at the bottom of the groove 21. A mounting cavity 22 is provided within the mounting bracket 20, connecting the first channel segment 011 and the third through hole 211, and together with the third through hole 211, forming the second channel segment 012. The support component may include a ball bearing; in this case, the second through hole 431 is the inner hole of the ball bearing, and the connecting rod 411 passes through the ball bearing and is fixedly connected to the rotating shaft 32. The outer wall surface of the ball bearing is fixedly connected to the inner wall surface of the groove 21.

[0065] In some embodiments, the support may also include a copper sleeve 43, such as Figure 3 and Figure 4 As shown, the copper sleeve 43 is fixed to the bottom of the groove 21 away from the rotary joint 30, and the second through hole 431 is set inside the copper sleeve 43 and communicates with the third through hole 211. Therefore, in this embodiment, by installing the copper sleeve 43, which serves as a support, into the groove 21 provided on the mounting bracket 20, installation is simple and convenient. The copper sleeve 43 has high hardness, wear resistance, and corrosion resistance, and is not prone to seizing, making it suitable for installation on the mounting bracket 20, which requires high-load rotation, thereby reducing the maintenance frequency of the connecting component 40 and increasing its service life. Furthermore, in this embodiment, after machining the first channel segment 011 in the turntable 10, while machining the groove 21, a mounting cavity 22 communicating with the first channel segment 011 and the third through hole 211 in the groove 21 can be machined in the mounting bracket 20, thus obtaining the corresponding first channel 01. This process is convenient and low-difficulty.

[0066] The turntable 10 in this embodiment further includes a driving component 60, which includes a driving element and a mounting element. The mounting element mounts the driving element onto the base 11. The turntable 12 includes a shaft core 121, a first connecting plate 122, and a second connecting plate 123. The shaft core 121 is connected to the driving element and can rotate around its own axis under the drive of the driving element, and the axis of the shaft core 121 is parallel to a first direction. The first connecting plate 122 is mounted on the side of the shaft core 121 away from the base 11. The second connecting plate 123 is mounted on the surface of the first connecting plate 122 away from the shaft core 121 and is fixedly connected to the mounting bracket 20. When the shaft core 121 rotates, it drives the first connecting plate 122 to drive the second connecting plate 123 to rotate, thereby realizing the rotation of the mounting bracket 20 through the second connecting plate 123. Figure 3As shown, the mounting component in this embodiment is specifically a fixing sleeve 62, which is installed on the side of the base 11 near the mounting bracket 20. The fixing sleeve 62 has an installation space inside, and the driving component is a motor 61. The motor 61 includes a stator 611 and a rotor 612. The rotor 612 is disposed inside the stator 611, and the stator 611 is fixedly connected to the inner wall of the fixing sleeve 62. The rotor 612 is connected to the shaft core 121 to drive the shaft core 121 to rotate.

[0067] Along the first direction, the first channel 01 is sequentially disposed within the base 11, the shaft core 121, the first connecting plate 122, the second connecting plate 123, and the mounting bracket 20. In other words, in this embodiment, the first channel 01 can be obtained by simply creating corresponding through holes adapted to the connecting rod 411 within the base 11, the shaft core 121, the first connecting plate 122, the second connecting plate 123, and the mounting bracket 20. The aforementioned first channel segment 011 is the channel that penetrates the base 11, the shaft core 121, the first connecting plate 122, and the second connecting plate 123. The first channel segment 011 is easy to process and does not reduce the structural strength of the turntable 10.

[0068] In addition, such as Figure 1 As shown, the grinding machine in this embodiment also includes a first protective shell 70, a second protective shell 80, and a cable chain 90. Both the first protective shell 70 and the second protective shell 80 have protective spaces. The first protective shell 70 surrounds the mounting frame 20 and the rotary joint 30, and the mounting frame 20 is connected to the inner wall of the first protective shell 70. The second protective shell 80 is mounted on the top of the first protective shell 70 away from the base 11 and communicates with the first protective shell 70. The grinding assembly includes at least three grinding wheel components 100. At least one grinding wheel component 100 passes through the first protective shell 70 and is fixedly connected to the mounting frame 20, located on one side of the first protective shell 70 along a second direction. At least two grinding wheel components 100 pass through the first protective shell 70 and are fixedly connected to the mounting frame 20, located on the other side of the first protective shell 70 along the second direction. The grinding machine also includes a driving mechanism for driving the grinding wheel components 100 to perform grinding operations, and the driving mechanism is drively connected to the grinding wheel components 100. The drive component is mounted on the mounting bracket 20 and located in the gap between the mounting bracket 20 and the inner wall of the first protective housing 70. Since the connecting assembly 40 for mounting the rotary joint 30 does not occupy external space of the rotating mechanism 00, the first protective housing 70 can be designed to be smaller and more compact, while also reserving more space for the installation of the drive component. This saves installation space on the grinding machine and improves the space utilization rate of the grinding machine, thereby enhancing the overall compactness of the grinding machine structure. The second protective housing 80 is connected to and communicates with one end of the cable chain 90. Therefore, cables, pipes, and other devices extending from the rotary joint 30 can be laid from the second protective housing 80 into the cable chain 90 to protect the rotary joint 30, cables, pipes, etc., improving the safety protection performance of the grinding machine.

[0069] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0070] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this application.

[0071] The above are merely preferred embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A grinding machine, characterized in that, include: A rotating mechanism (00) includes a turntable (10) and a mounting bracket (20). The turntable (10) includes a base (11) and a rotating platform (12). The rotating platform (12) is mounted on the base (11) and can rotate relative to the base (11). The mounting bracket (20) is mounted on the side of the rotating platform (12) away from the base (11). A rotary joint (30) includes a housing (31) and a rotating shaft (32). The housing (31) is connected to the side of the mounting bracket (20) away from the rotating table (12). The rotating shaft (32) is installed inside the housing (31) and can rotate relative to the housing (31). A connecting assembly (40) is installed in the rotating mechanism (00) and fixedly connected to the base (11). In a first direction, the connecting assembly (40) extends at least partially to the side of the mounting bracket (20) near the housing (31) and passes through the housing (31) to be fixedly connected to the rotating shaft (32). The rotating mechanism (00) is provided with a first channel (01), which passes through the turntable (10) and the mounting frame (20) in sequence. The connecting component (40) includes a connecting part (41) and a fixing part (42). The connecting component (41) is installed in the first channel (01). The side of the connecting component (41) close to the base (11) is fixedly connected to the base (11), and the side away from the base (11) extends out of the mounting frame (20). Along the first direction, the side of the connecting component (41) away from the base (11) passes through the rotary joint (30) to extend to the end of the rotating shaft (32) away from the housing (31). The mounting frame (20) and the housing (31) can rotate relative to the connecting component (41) under the drive of the rotating table (12). The fixing component (42) is disposed at one end of the rotating shaft (32) away from the housing (31) and the connecting component (41) is fixedly connected to the rotating shaft (32); The first channel (01) is disposed through the rotating mechanism (00) along the first direction. The rotating joint (30) is provided with a second channel (33). The second channel (33) passes through the housing (31) and the rotating shaft (32) along the first direction and communicates with the first channel (01). The connecting component (41) includes a connecting rod (411) and a connecting block (412). The connecting rod (411) passes through the first channel (01) and the second channel (33) and is fixedly connected to the fixing component (42), and the connecting rod (411) is in clearance fit with the first channel (01) and the second channel (33); Along the first direction, the connecting block (412) is disposed at one end of the connecting rod (411) away from the fixing component (42) and is fixedly connected to the bottom of the base (11) away from the mounting bracket (20); The connecting assembly (40) further includes a support member, which is installed on one end of the mounting bracket (20) near the rotary joint (30). The support member has a second through hole (431) which is connected to and coaxially arranged with the first channel (01) and the second channel (33). The second through hole (431) is adapted to the connecting rod (411) and sleeved on the outer periphery of the connecting rod (411).

2. The grinding machine according to claim 1, characterized in that, Along a first direction, the rotary joint (30) has a first position close to the mounting bracket (20) and allowing the housing (31) to rotate with the mounting bracket (20), and a second position movable to be separated from the mounting bracket (20). The fixing component (42) includes: Flange (421), along the first direction, the flange (421) is mounted on the end face of the rotating shaft (32) away from the housing (31), and a stop structure (50) is provided between the connecting rod (411) and the flange (421). When the rotary joint (30) is in the first position, the stop structure (50) stops the rotating shaft (32) in a position that keeps it stationary relative to the connecting rod (411).

3. The grinding machine according to claim 2, characterized in that, Along the first direction, a first through hole (4211) is provided through the flange (421), and the first through hole (4211) communicates with the second channel (33). The end of the connecting rod (411) away from the connecting block (412) passes through the first through hole (4211). The connecting rod (411) is adapted to the inner wall surface of the first through hole (4211). The stop structure (50) includes: The first stop portion is disposed on the inner wall surface of the first through hole (4211). The first stop portion includes a first plane (51) and a first arc-shaped surface (52). The first plane (51) is adjacent to the opposite sides of the first arc-shaped surface (52) along its own circumference. The second stop is disposed on the outer periphery of the end of the connecting rod (411) away from the connecting block (412). The second stop includes a second plane (53) and a second arcuate surface (54). The second plane (53) is adjacent to the two opposite sides of the second arcuate surface (54) along its own axial direction. When the rotary joint (30) is in the first position, the first plane (51) and the second plane (53) are in contact with each other.

4. The grinding machine according to claim 3, characterized in that, The fixing component (42) also includes: A locking structure (422) is provided on the side of the flange (421) away from the rotating shaft (32). The locking structure (422) has a third position connected to the connecting rod (411) and a fourth position separated from the connecting rod (411). When the locking structure (422) is in the third position, it locks the rotary joint (30) in the first position. When the locking structure (422) is in the fourth position, it unlocks the rotary joint (30) to the second position.

5. The grinding machine according to claim 4, characterized in that, The locking structure (422) includes: A pressure plate (221) is disposed on the surface of the flange (421) away from the rotating shaft (32) and covers the first through hole (4211). Fastener (222) presses the pressure plate (221) onto the flange (421) and is detachably connected to the connecting rod (411).

6. The grinding machine according to claim 1, characterized in that, The first channel (01) includes a first channel segment (011) and a second channel segment (012). The first channel segment (011) is disposed through the turntable (10). The mounting bracket (20) has a groove (21) at one end near the rotary joint (30). A third through hole (211) is provided at the bottom of the groove (21). The mounting bracket (20) has a mounting cavity that connects the first channel segment (011) and the third through hole (211) and forms the second channel segment (012) with the third through hole (211). The support member includes: A copper sleeve (43) is fixed to the bottom of the groove (21) away from the rotary joint (30). The second through hole (431) is provided in the copper sleeve (43) and communicates with the third through hole (211).

7. The grinding machine according to any one of claims 1 to 6, characterized in that, The turntable (10) further includes a driving component, which includes a driving element and a mounting element. The mounting element mounts the driving element onto the base (11). The turntable (12) includes: A shaft core (121) is connected to the driving member and can rotate around its own axis under the drive of the driving member, and the axis of the shaft core (121) is parallel to the first direction; The first connecting plate (122) is mounted on the side of the shaft core (121) away from the base (11); The second connecting plate (123) is mounted on the surface of the first connecting plate (122) away from the shaft core (121) and is fixedly connected to the mounting bracket (20); Along the first direction, the first channel (01) is sequentially disposed within the base (11), the shaft core (121), the first connecting plate (122), the second connecting plate (123), and the mounting bracket (20).

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