Grinding machine

Abstract

The grinding machine comprises a rotating mechanism, a rotating connector and a connecting assembly, the rotating mechanism comprises a rotating table and a mounting frame, the rotating table comprises a base and a rotating table, the rotating table is mounted on the base and can rotate relative to the base, and the mounting frame is mounted on the side, away from the base, of the rotating table; the rotating joint comprises a shell and a rotating shaft, the shell is connected with the side, away from the rotating table, of the mounting frame, and the rotating shaft is mounted in the shell and can rotate relative to the shell; the connecting assembly is installed in the rotating mechanism and fixedly connected with the base, and in the first direction, at least part of the connecting assembly stretches out to the side, close to the shell, of the installing frame and penetrates through the shell to be fixedly connected with the rotating shaft. The problem that a connection mode of a rotary joint occupies a large space of a grinding machine is solved.

Description

Technical Field

[0001] The present application relates to the technical field of machining machine tools, and in particular to a grinding machine. Background Art

[0002] As a connecting component for fluid media such as oil, liquid, and gas, the rotary joint is widely used in the field of grinding machines. The rotary joint usually includes a housing and a rotating shaft installed in the housing. The rotating shaft is at least partially located outside the housing and can rotate relative to the housing. The housing and the rotating shaft are provided with flow channels for the flow of the fluid medium. At present, in order to achieve reliable installation of the water, oil, and air pipelines of the grinder, the rotary joint is installed on the rotating frame of the grinder turntable through its rotating shaft, and then the base of the turntable and the housing of the rotary joint are fixedly connected by a fixed frame. However, this connection method of the rotary joint occupies a large space in the grinder and is difficult to apply to scenarios limited by the installation space or the overall structure of the equipment. Summary of the invention

[0003] The main purpose of the present application is to provide a grinding machine to solve the problem that the connection method of the rotary joint in the background technology occupies a large space of the grinding machine.

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

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

[0006] A rotary joint, the rotary joint comprising a housing and a rotary shaft, the housing being connected to a side of the mounting frame away from the rotating table, the rotary shaft being mounted in the housing and being rotatable relative to the housing;

[0007] A connecting component is installed in the rotating mechanism and fixedly connected to the base, and along a first direction, the connecting component at least partially extends to a side of the mounting frame close to the shell and passes through the shell to be fixedly connected to the rotating shaft.

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

[0009] A connecting component, the connecting component is installed in the first channel, a side of the connecting component close to the base is fixedly connected to the base, and a side away from the base extends out of the mounting frame, along a first direction, a side of the connecting component away from the base passes through the rotating joint to extend to an end of the rotating shaft away from the shell, and the mounting frame and the shell can rotate relative to the connecting component under the drive of the rotating table;

[0010] A fixing component is arranged at one end of the rotating shaft away from the housing and fixedly connects the connecting component to the rotating shaft.

[0011] Further, the first channel is arranged in the rotating mechanism along the first direction, a second channel is arranged in the rotating joint, the second channel passes through the housing and the rotating shaft along the first direction and is connected with the first channel, and the connecting component includes:

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

[0013] A connecting block is arranged along a first direction at an end of the connecting rod away from the fixing component and is fixedly connected to a bottom of the base away from the mounting frame.

[0014] Further, along the first direction, the rotary joint has a first position close to the mounting frame and enables the housing to rotate with the mounting frame, and moves to a second position separated from the mounting frame, and the fixing component includes:

[0015] A flange is installed on the end face of the rotating shaft away from the shell along the first direction, and a stopping structure is arranged between the connecting rod and the flange. When the rotating joint is located at the first position, the stopping structure stops the rotating shaft at a stationary position relative to the connecting rod.

[0016] Further, along the first direction, a first through hole is provided in the flange, and the first through hole is communicated with the second channel, an end of the connecting rod away from the connecting block is provided in the first through hole, the connecting rod is adapted to the inner wall surface of the first through hole, and the stop structure includes:

[0017] A first stopper, the first stopper is arranged on the inner wall surface of the first through hole, the first stopper comprises a first plane and a first arcuate surface, the first plane is adjacent to two opposite sides of the first arcuate surface along its own circumference;

[0018] A second stopper, the second stopper being arranged at the outer periphery of one end of the connecting rod away from the connecting block, the second stopper comprising a second plane and a second arcuate surface, the second plane being adjacent to two opposite sides of the second arcuate surface along its own axial direction;

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

[0020] Furthermore, the fixing component further comprises:

[0021] A locking structure, wherein the locking structure is arranged on a side of the flange away from the rotating axis, the locking structure has a third position connected to the connecting rod and a fourth position separated from the connecting rod, the locking structure locks the rotating joint at the first position when the locking structure is in the third position, and unlocks the rotating joint to the second position when the locking structure is in the fourth position.

[0022] Furthermore, the locking structure comprises:

[0023] A pressing sheet, the pressing sheet is arranged on a surface of the flange away from the rotating shaft and covers the first through hole;

[0024] A fastener is used to press the pressing plate onto the flange and is detachably connected to the connecting rod.

[0025] Furthermore, the connection component also includes:

[0026] A support member is installed at one end of the mounting frame close to the rotary joint, a second through hole is arranged in the support member, the second through hole is connected with the first channel and the second channel and is coaxially arranged, and 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 section and a second channel section, the first channel section is arranged through the turntable, a groove is arranged at one end of the mounting frame close to the rotary joint, a third through hole is arranged at the bottom of the groove, a mounting cavity is arranged in the mounting frame, the mounting cavity is communicated between the first channel section and the third through hole and forms the second channel section with the third through hole, and the support member includes:

[0028] A copper sleeve is fixed to the bottom of the groove away from the rotary joint, and the second through hole is arranged in the copper sleeve and communicated with the third through hole.

[0029] Furthermore, the turntable further comprises a driving component, the driving component comprises a driving member and a mounting member, the mounting member mounts the driving member on the base, and the turntable comprises:

[0030] A shaft core, the shaft core is connected to the driving member and can rotate around its own axis under the driving of the driving member, and the axis of the shaft core is parallel to the first direction;

[0031] A first connection disk, the first connection disk is installed on a side of the shaft core away from the base;

[0032] A second connection plate, the second connection plate is mounted on a surface of the first connection plate away from the shaft core and fixedly connected to the mounting frame;

[0033] Wherein, along the first direction, the first channel is sequentially arranged through the base, the shaft core, the first connecting plate, the second connecting plate and the mounting frame.

[0034] In the present application, the grinder includes a rotating mechanism, a rotating joint and a connecting assembly. The rotating mechanism includes a turntable and a mounting frame. The shell of the rotating joint is connected to the side of the mounting frame away from the turntable. The rotating shaft of the rotating joint is installed in the shell and can rotate relative to the shell. Among them, the connecting assembly is installed in the rotating mechanism and fixedly connected to the base, and, along the first direction, the connecting assembly at least partially extends to the side of the mounting frame close to the shell and passes through the shell to be fixedly connected to the rotating shaft. Therefore, this embodiment realizes the fixed connection between the base and the rotating shaft by the connecting assembly installed in the rotating mechanism. The connecting assembly does not occupy the space of the grinder located outside the rotating mechanism to realize the installation of the rotating joint. It is suitable for scenes where the installation space is limited or the overall structural volume of the grinder is limited, so that the grinder occupies less space, reduces the overall volume of the grinder, and improves the compactness of the overall structure of the grinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0036] Figure 1 A schematic structural diagram of a grinding machine provided by an embodiment of the present invention;

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

[0038] Figure 3 for Figure 2 A cross-sectional view of

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

[0040] Figure 5 It is an exploded schematic diagram of the rotary joint and the fixed parts;

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

[0042] The above drawings 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, turntable; 121, shaft core; 122, first connection plate; 123, second connection plate; 20, mounting frame; 21, groove; 211, third through hole; 22, mounting cavity; 30, rotating joint; 31, housing; 32, rotating shaft; 33, second channel; 40, connecting assembly; 41, connecting component; 411, connecting rod; 412, connecting block; 42 , fixing component; 421, flange; 4211, first through hole; 422, locking structure; 221, pressing plate; 222, fastener; 43, copper sleeve; 431, second through hole; 50, stopping structure; 51, first plane; 52, first arcuate surface; 53, second plane; 54, second arcuate surface; 60, driving component; 61, motor; 611, stator; 612, rotor; 62, fixing sleeve; 70, first protective shell; 80, second protective shell; 90, drag chain; 100, grinding wheel component. DETAILED DESCRIPTION

[0044] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0045] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0046] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of the present application. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be considered as a part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, and therefore, once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0047] When the existing rotary joint 30 is installed on the grinding machine, a relatively large fixed frame is required to install the rotary joint 30 on the rotating frame of the grinding machine. The rotating frame is the mounting frame 20 mentioned below in the embodiment of the present invention. The mounting frame 20 is mainly used to install the grinding tools of the grinding machine. In order to ensure that the pipeline connected to the rotary joint 30 will not be entangled during the rotation of the mounting frame 20, the prior art usually uses a fixed frame to fix the base 11 of the grinder turntable 10 and the outer shell of the rotary joint 30 together. In this regard, the fixed frame is usually designed to be a large-volume connecting frame structure with a turning structure (such as a frame structure bent into a U-shaped structure). 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, and the other end of the fixed frame needs to extend from the outside of the turntable 10 and be bent until 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 equipment. In this connection method, the rotary joint 30 is located between the fixed frame and the rotating frame, and the fixed frame occupies a larger installation space of the grinder, resulting in the connection method of the rotary joint 30 occupying a larger space of the grinder.

[0048] In view of the above problems, the first embodiment of the present invention provides a grinding machine, see Figures 1 to 6 The grinding machine includes a rotating mechanism 00, a rotating joint 30 and a connecting assembly 40. The rotating mechanism 00 includes a turntable 10 and a mounting frame 20. The turntable 10 includes a base 11 and a rotating table 12. The rotating table 12 is mounted on the base 11 and can rotate relative to the base 11. The mounting frame 20 is mounted on a side of the rotating table 12 away from the base 11. The mounting frame 20 is arranged along a second direction (such as Figure 1 Grinding assemblies can be installed on opposite sides of the mounting frame 20 (in the direction indicated by the arrow Y in the middle), so that the rotating table 12 can drive the grinding assembly on the mounting frame 20 to rotate to achieve processing of the workpiece.

[0049] The rotary joint 30 includes a housing 31 and a rotary shaft 32. The housing 31 is connected to a side of the mounting frame 20 away from the rotating platform 12. The rotary shaft 32 is installed in the housing 31 and can rotate relative to the housing 31. The connecting assembly 40 is installed in the rotating mechanism 00 and is fixedly connected to the base 11, and is rotated along a first direction (such as Figure 1 In the direction indicated by the arrow X in the figure, which is also the axial direction of the connecting rod 411 mentioned below), the connecting assembly 40 at least partially extends to the side of the mounting frame 20 close to the shell 31 and passes through the shell 31 to be fixedly connected to the rotating shaft 32. As a result, the connecting assembly 40 can realize the installation of the rotary joint 30 without occupying the external space of the turntable 10, saving the installation space of the grinder, and facilitating the compactness and integration of the grinder structure. During the operation of the turntable 10, while the rotating table 12 drives the mounting frame 20 to rotate, the shell 31 of the rotary joint 30 can rotate with the mounting frame 20, and the rotating shaft 32 and the base 11 remain stationary, thereby realizing that during the operation of the grinder, the fluid medium used by the grinder can be transported through the rotary joint 30, avoiding entanglement of the pipeline that transports the corresponding fluid medium.

[0050] It can be seen that in this embodiment, the grinding machine includes a rotating mechanism 00, a rotating 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 rotating joint 30 is connected to the side of the mounting frame 20 away from the rotating table 12. The rotating shaft 32 of the rotating joint 30 is installed in the housing 31 and can rotate relative to the housing 31. Among them, the connecting assembly 40 is installed in the rotating mechanism 00 and fixedly connected to the base 11, and along the first direction, the connecting assembly 40 at least partially extends to the side of the mounting frame 20 close to the housing 31 and passes through the housing 31 to be fixedly connected to the rotating shaft 32. Therefore, this embodiment realizes the fixed connection between the base 11 and the rotating shaft 32 by the connecting assembly 40 installed in the rotating mechanism 00. The connecting assembly 40 does not occupy the space of the grinder located outside the rotating mechanism 00 to realize the installation of the rotating joint 30. It is suitable for scenes where the installation space is limited or the overall structure volume of the grinder is limited, so that the grinder occupies less space, reduces the overall volume of the grinder, and improves the compactness of the overall structure of the grinder. The reduction in the size of the grinder is also conducive to the transportation of the grinder, thereby reducing the transportation difficulty and cost of the grinder.

[0051] like Figure 3 and Figure 4As shown, a first channel 01 is provided in the rotating mechanism 00, and the first channel 01 passes through the turntable 10 and the mounting frame 20 in sequence. 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 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 rotating joint 30 to extend to the end of the rotating shaft 32 away from the shell 31, and the mounting frame 20 and the shell 31 can rotate relative to the connecting component 41 under the drive of the rotating table 12. The fixing component 42 is provided at the end of the rotating shaft 32 away from the shell 31 and fixedly connects 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 out of the mounting frame 20 at a side away from the base 11, and penetrates the housing 31 and the rotary joint 30 in the first direction to extend to the end of the rotary shaft 32 away from the housing 31, and then the connecting component 41 and the rotary shaft 32 are fixedly connected by a fixing member located at the end of the rotary shaft 32 away from the housing 31. The connection is simple and convenient, and the rotary shaft 32 can be fixed to the base 11 through the connecting component 41 without disassembling the housing 31 and the rotary shaft 32 of the rotary joint 30, which has low assembly difficulty and can improve the assembly efficiency between the connecting component 40 and the rotary joint 30.

[0053] The first channel 01 is arranged in the rotating mechanism 00 along the first direction, and the second channel 33 is arranged in the rotating joint 30. The second channel 33 passes through the shell 31 and the rotating shaft 32 along the first direction and is connected to 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, and the connecting rod 411 is loosely matched with the first channel 01 and the second channel 33, so that the housing 31 of the mounting frame 20 and the rotating joint 30 can rotate relative to the connecting rod 411 and the rotating shaft 32 under the drive of the rotating table 12, thereby ensuring the reliability of the rotating mechanism 00 and the rotating joint 30 during the operation of the grinding machine. Along the first direction, the connecting block 412 is arranged 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 frame 20.

[0054] Therefore, in this embodiment, after the connecting rod 411 is installed in the first channel 01 through 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, after the second channel 33 in the rotary joint 30 is sleeved on the section of the connecting rod 411 extending out of the mounting frame 20, the connecting rod 411 is fixedly connected to the rotating shaft 32 through the fixing component 42, ensuring that during the operation of the turntable 10, the rotating shaft 32 can be relatively stationary with the base 11, and the housing 31 of the rotary joint 30 can rotate relative to the rotating shaft 32 with respect to the mounting frame 20, and the assembly is efficient and convenient, which facilitates the disassembly and maintenance of the rotary joint 30. The connecting rod 411 in this embodiment not only does not occupy the external space of the rotating mechanism 00, but also occupies less space in the rotating mechanism 00 and the rotary joint 30, which can save the installation space of the grinder while ensuring the structural strength of the rotating mechanism 00 and the rotary joint 30, and the processing and assembly of the connecting rod 411 are convenient and low in cost.

[0055] The second channel 33 in this embodiment includes a first channel section and a second channel section. Along the first direction, the first channel section is set through the bottom of the housing 31 near the mounting frame 20, and the second channel section is set through the rotating shaft 32. The second channel section is coaxially arranged with the first channel section and communicates with each other. The first channel section and the second channel section will not only not reduce the structural strength of the rotary joint 30, but also, because the second channel section is misaligned with the flow channel for the fluid medium to flow in the rotating shaft 32, it will not affect the transmission of the fluid medium by the rotary joint 30.

[0056] Along the first direction, the rotary joint 30 has a first position close to the mounting frame 20 and allows the housing 31 to rotate with the mounting frame 20, and a second position where it moves away from the mounting frame 20. That is, in the first position, the rotary joint 30 is installed on the mounting frame 20, and in this position, the housing 31 of the rotary joint 30 can rotate driven by the mounting frame 20, and the second position is the position where the rotary joint 30 can be removed from the mounting frame 20, so as to facilitate the disassembly and maintenance of the rotary joint 30. See Figures 2 to 6 The fixing component 42 in this embodiment includes a flange 421. Along the first direction, the flange 421 is installed on the end surface of the rotating shaft 32 away from the shell 31. A stopping structure 50 is arranged between the connecting rod 411 and the flange 421. When the rotating joint 30 is in the first position, the stopping structure 50 stops the rotating shaft 32 at a position where it remains stationary relative to the connecting rod 411.

[0057] Therefore, in this embodiment, it is only necessary to install a flange 421 on the end face of the rotating shaft 32, and to set a stopping structure 50 between the flange 421 and the connecting rod 411. When the rotating joint 30 is located at the first position and the mounting frame 20 drives the shell 31 to rotate, the stopping structure 50 can stop the rotating shaft 32 at a stationary position relative to the connecting rod 411, thereby ensuring that the rotating shaft 32 remains stationary.

[0058] In some embodiments, the stopping 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 close to the flange 421, and the limiting protrusion can be set on the side of the flange 421 close to the connecting rod 411. The limiting protrusion is adapted to the limiting hole and inserted into the limiting hole to realize the stopping and limiting of the rotating shaft 32.

[0059] In some embodiments, along the first direction, a first through hole 4211 is provided in the flange 421, and the first through hole 4211 is connected to the second channel 33, and one end of the connecting rod 411 away from the connecting block 412 is provided in 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 provided on the inner wall surface of the first through hole 4211, such as Figure 6 As shown, the first stopper includes a first plane 51 and a first arcuate surface 52, and the first plane 51 is adjacent to the first arcuate surface 52 along the circumferential direction of the first stopper. The second stopper is arranged on the outer periphery of the end of the connecting rod 411 away from the connecting block 412, and the second stopper includes a second plane 53 and a second arcuate surface 54, and the second plane 53 is adjacent to the second arcuate surface 54 along the axial direction of the second stopper. 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] Thus, when the housing 31 of the rotary joint 30 rotates with the mounting frame 20, the first plane 51 and the second plane 53 fit each other, if the rotating shaft 32 has a tendency to rotate with the housing 31, it will be stopped by the first arc surface 52 and the second arc surface 54, thereby stopping the rotating shaft 32 at a position where it remains stationary relative to the connecting rod 411. In addition, when processing the stop structure 50 of this embodiment, it is only necessary to design the first through hole 4211 as a circular hole, and to process a first plane 51 on a part of the inner wall surface of the circular hole, and to design the connecting rod 411 as a round rod, and to process a second plane 53 on the outer periphery of the part of the round rod located in the first through hole 4211, so that the processing is simple, convenient and low in difficulty. Moreover, when the second plane 53 on the connecting rod 411 is matched with the first plane 51 in the first through hole 4211, the engineering personnel can intuitively observe the positional relationship between the first plane 51 and the second plane 53, which further improves the convenience of the engineering personnel in connecting the rotary joint 30 with the connecting rod 411.

[0061] In this embodiment, in order to ensure the stability of the rotary joint 30 on the mounting frame 20 when the rotary joint 30 is in the first position, the housing 31 can be detachably connected to the mounting frame 20 through a fastener 222 (such as a screw or bolt). In order to further improve the stability and firmness of the connection between the connecting rod 411 and the rotating shaft 32 and reduce the difficulty of disassembling the rotary joint 30, the fixing component 42 in this embodiment further includes a locking structure 422, which is arranged on a 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, and when the locking structure 422 is in the fourth position, the rotary joint 30 is unlocked to the second position. Therefore, in this embodiment, when the locking structure 422 is connected to the connecting rod 411, the rotary joint 30 can be locked in the first position, and when the locking structure 422 is separated from the connecting rod 411, the rotary joint 30 can be unlocked to the second position, so that the rotary joint 30 can be conveniently taken out and disassembled. Moreover, 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 can be further improved, and the connecting rod 411 can be prevented from shaking slightly, thereby improving the reliability of the overall structure of the grinding machine and reducing the noise during operation. At this time, regardless of whether the housing 31 is connected and fixed to the mounting frame 20 accordingly, the stability of the rotary joint 30 on the mounting frame 20 can be ensured. Of course, when the locking structure 422 and the housing 31 are also fixed to the mounting frame 20, the stability of the rotary joint 30 is better.

[0062] The locking structure 422 in this embodiment includes a pressing plate 221 and a fastener 222. The area of ​​the pressing plate 221 is larger than the area of ​​the first through hole 4211. The pressing plate 221 is arranged 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 pressing plate 221 on the flange 421 and detachably connects it to the connecting rod 411. Therefore, in this embodiment, the pressing plate 221 is pressed on the flange 421 by the fastener 222 and is detachably connected to the connecting rod 411, so that the rotating joint 30 can be fixed and restricted to the first position, and the connection stability and reliability between the connecting rod 411 and the rotating shaft 32 can be further improved, and the assembly difficulty is low, and it is efficient and convenient. Among them, the fastener 222 can specifically include one of a screw and a bolt. In this case, a threaded hole compatible with the screw or bolt can be set at the top of the connecting rod 411 near the pressing plate 221. Thus, the screw or bolt can be screwed into the threaded hole in the connecting rod 411 to achieve a detachable connection with the connecting rod 411, which is convenient for assembly.

[0063] The connecting assembly 40 also includes a support member, which is installed at one end of the mounting frame 20 close to the rotary joint 30. A second through hole 431 is provided in the support member. The second through hole 431 is connected to the first channel 01 and the second channel 33 and is coaxially arranged. The second through hole 431 is adapted to the connecting rod 411 and is sleeved on the outer periphery of the connecting rod 411. That is to say, in this embodiment, by allowing the connecting rod 411 to pass through the second through hole 431 of the support member, it is possible to ensure that after the rotary joint 30 is installed on the mounting frame 20, the coaxiality between the turntable 10, the mounting frame 20 and the housing 31 of the rotary joint 30 is better achieved, thereby further reducing the installation space required for the rotary joint 30, the turntable 10 and the mounting frame 20 in the grinding machine and the complexity of the overall structure, making the overall structure of the grinding machine more compact and reliable. Moreover, maintaining the coaxiality can also improve the installation alignment accuracy between the rotary joint 30 and the mounting frame 20, reduce the vibration and wear of the mounting frame 20 with the housing 31 during the rotation process, and improve the service life of the mounting frame 20 and the rotary joint 30. At the same time, the provision of the support member also increases the rigidity support of the connecting rod 411 , further improving the stability of the connecting rod 411 .

[0064] The first channel 01 in this embodiment includes a first channel section 011 and a second channel section 012, and the first channel section 011 is arranged in the turntable 10. A groove 21 is arranged at one end of the mounting frame 20 close to the rotary joint 30, and a third through hole 211 is arranged at the bottom of the groove 21. An installation cavity 22 is arranged in the mounting frame 20, and the installation cavity 22 is connected between the first channel section 011 and the third through hole 211 and forms the second channel section 012 with the third through hole 211. The support member may include a ball bearing, and 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 arranged in the copper sleeve 43 and communicated with the third through hole 211. Therefore, in this embodiment, the copper sleeve 43 as a support is installed in the groove 21 arranged on the mounting frame 20, and the installation is simple and convenient. The copper sleeve 43 has high hardness, wear resistance, corrosion resistance, and is not easy to produce a seizure phenomenon. It is suitable for installation on the mounting frame 20 that requires high-load rotation, thereby reducing the maintenance frequency of the connection component 40 and increasing the service life of the connection component 40. Moreover, in this embodiment, after the first channel section 011 is machined in the turntable 10, while machining the groove 21, the mounting cavity 22 that is connected to the first channel section 011 and the third through hole 211 in the groove 21 is machined in the mounting frame 20, so that the corresponding first channel 01 can be obtained, and the processing is convenient and the difficulty is low.

[0066] The turntable 10 in this embodiment also includes a driving component 60, and the driving component 60 includes a driving component and a mounting component, and the mounting component mounts the driving component on the base 11. The rotating table 12 includes an axis core 121, a first connecting disk 122, and a second connecting disk 123. The axis core 121 is connected to the driving component and can rotate around its own axis when driven by the driving component, and the axis of the axis core 121 is parallel to the first direction. The first connecting disk 122 is installed on the side of the axis core 121 away from the base 11. The second connecting disk 123 is installed on the surface of the first connecting disk 122 away from the axis core 121 and is fixedly connected to the mounting frame 20. When the axis core 121 rotates, it drives the first connecting disk 122 to drive the second connecting disk 123 to rotate, thereby realizing the rotation of the mounting frame 20 through the second connecting disk 123. Figure 3As shown, the mounting member in this embodiment is specifically a fixed sleeve 62, which is mounted on a side of the base 11 close to the mounting frame 20. The fixed sleeve 62 is provided with a mounting space, and the driving member is a motor 61, which includes a stator 611 and a rotor 612. The rotor 612 is disposed in the stator 611, and the stator 611 is fixedly connected to the inner wall surface of the fixed sleeve 62, and the rotor 612 is connected to the shaft core 121 to drive the shaft core 121 to rotate.

[0067] Among them, along the first direction, the first channel 01 is sequentially arranged in the base 11, the shaft core 121, the first connection plate 122, the second connection plate 123 and the mounting frame 20. In other words, in this embodiment, it is only necessary to open corresponding through holes adapted to the connecting rod 411 in the base 11, the shaft core 121, the first connection plate 122, the second connection plate 123 and the mounting frame 20 to obtain the corresponding first channel 01. The first channel section 011 mentioned above is the channel arranged to penetrate the base 11, the shaft core 121, the first connection plate 122 and the second connection plate 123. The first channel section 011 is easy to process and will not reduce the structural strength of the turntable 10.

[0068] In addition, if Figure 1 As shown, the grinder in this embodiment also includes a first protective shell 70, a second protective shell 80 and a drag chain 90. Protective spaces are provided in the first protective shell 70 and the second protective shell 80. The first protective shell 70 is surrounded by the outside of the mounting frame 20 and the rotary joint 30, and the mounting frame 20 is connected to the inner wall surface of the first protective shell 70. The second protective shell 80 is installed on the top of the first protective shell 70 away from the base 11 and is connected to 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, and is located on one side of the first protective shell 70 along the 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, and are located on the other side of the first protective shell 70 along the second direction. The grinder also includes a drive device for driving the grinding wheel component 100 to perform grinding work, and the drive device is transmission-connected to the grinding wheel component 100. The drive device is mounted on the mounting frame 20 and is located in the gap between the mounting frame 20 and the inner wall of the first protective shell 70. Since the connection assembly 40 for mounting the rotary joint 30 does not occupy the space outside the rotating mechanism 00, the volume of the first protective shell 70 can be designed to be smaller and more compact, and more space can be reserved for the installation of the drive device, saving the installation space of the grinder while improving the space utilization of the grinder, thereby improving the compactness of the overall structure of the grinder. The second protective shell 80 is connected to one end of the drag chain 90 and is interconnected. Therefore, the cables, pipes and other devices led out from the rotary joint 30 can be laid from the second protective shell 80 to the drag chain 90 to protect the rotary joint 30, cables, pipes, etc., and improve the safety protection performance of the grinder.

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

[0070] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only to facilitate the distinction between corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of this application.

[0071] The above are only preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A grinding machine, characterized in that: include: A rotating mechanism (00), the rotating mechanism (00) comprising a rotating table (10) and a mounting frame (20), the rotating table (10) comprising a base (11) and a rotating table (12), the rotating table (12) being mounted on the base (11) and being rotatable relative to the base (11), and the mounting frame (20) being mounted on a side of the rotating table (12) away from the base (11); A rotary joint (30), the rotary joint (30) comprising a shell (31) and a rotary shaft (32), the shell (31) being connected to a side of the mounting frame (20) away from the rotating platform (12), the rotary shaft (32) being installed in the shell (31) and being rotatable relative to the shell (31); A connecting component (40), wherein the connecting component (40) is installed in the rotating mechanism (00) and is fixedly connected to the base (11), and, along a first direction, the connecting component (40) at least partially extends to a side of the mounting frame (20) close to the shell (31) and passes through the shell (31) to be fixedly connected to the rotating shaft (32).

2. The grinding machine according to claim 1, characterized in that The rotating mechanism (00) is provided with a first channel (01), the first channel (01) sequentially passing through the turntable (10) and the mounting frame (20), and the connecting assembly (40) comprises: a connecting component (41), the connecting component (41) being installed in the first channel (01); a side of the connecting component (41) close to the base (11) is fixedly connected to the base (11), and a side away from the base (11) extends out of the mounting frame (20); along a first direction, a side of the connecting component (41) away from the base (11) passes through the rotating joint (30) to extend to an end of the rotating shaft (32) away from the shell (31); and the mounting frame (20) and the shell (31) can rotate relative to the connecting component (41) under the drive of the rotating platform (12); A fixing component (42) is arranged at one end of the rotating shaft (32) away from the housing (31) and fixedly connects the connecting component (41) and the rotating shaft (32).

3. The grinding machine according to claim 2, characterized in that: The first channel (01) is arranged to penetrate the rotating mechanism (00) along a first direction, a second channel (33) is arranged in the rotating joint (30), the second channel (33) penetrates the housing (31) and the rotating shaft (32) along the first direction and is in communication with the first channel (01), and the connecting component (41) comprises: a connecting rod (411), the connecting rod (411) passing through the first channel (01) and the second channel (33) and fixedly connected to the fixing component (42), and the connecting rod (411) is clearance-matched with the first channel (01) and the second channel (33); A connecting block (412) is arranged along a first direction at an end of the connecting rod (411) away from the fixing component (42) and is fixedly connected to a bottom of the base (11) away from the mounting frame (20).

4. The grinding machine according to claim 3, characterized in that: Along a first direction, the rotary joint (30) has a first position close to the mounting frame (20) and enables the housing (31) to rotate with the mounting frame (20), and a second position moved to separate from the mounting frame (20), and the fixing component (42) includes: A flange (421) is installed on the end surface of the rotating shaft (32) away from the housing (31) along a first direction, and a stopping structure (50) is provided between the connecting rod (411) and the flange (421). When the rotating joint (30) is located at the first position, the stopping structure (50) stops the rotating shaft (32) at a position where it remains stationary relative to the connecting rod (411).

5. The grinding machine according to claim 4, characterized in that Along the first direction, a first through hole (4211) is penetrated in the flange (421), and the first through hole (4211) is communicated with the second channel (33), one end of the connecting rod (411) away from the connecting block (412) is penetrated in the first through hole (4211), and the connecting rod (411) is adapted to the inner wall surface of the first through hole (4211), and the stopping structure (50) comprises: A first stopper, the first stopper being arranged on the inner wall surface of the first through hole (4211), the first stopper comprising a first plane (51) and a first arcuate surface (52), the first plane (51) being adjacent to two opposite sides of the first arcuate surface (52) along its own circumference; a second stopper, the second stopper being arranged on the outer periphery of one end of the connecting rod (411) away from the connecting block (412), the second stopper comprising a second plane (53) and a second arcuate surface (54), the second plane (53) being adjacent to two opposite sides of the second arcuate surface (54) along its own axial direction; Wherein, when the rotary joint (30) is located at the first position, the first plane (51) and the second plane (53) are in contact with each other.

6. The grinding machine according to claim 4, characterized in that The fixing component (42) further comprises: A locking structure (422), wherein the locking structure (422) is arranged on a side of the flange (421) away from the rotating shaft (32), and 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 located at the third position, the rotating joint (30) is locked at the first position; when the locking structure (422) is located at the fourth position, the rotating joint (30) is unlocked to the second position.

7. The grinding machine according to claim 6, characterized in that The locking structure (422) comprises: A pressing sheet (221), the pressing sheet (221) being arranged on a surface of the flange (421) away from the rotating shaft (32) and covering the first through hole (4211); A fastener (222), wherein the fastener (222) presses the pressing sheet (221) onto the flange (421) and is detachably connected to the connecting rod (411).

8. The grinding machine according to claim 3, characterized in that: The connection assembly (40) further comprises: A support member, wherein the support member is mounted on one end of the mounting frame (20) close to the rotary joint (30), and a second through hole (431) is arranged in the support member, the second through hole (431) is connected to the first channel (01) and the second channel (33) and is coaxially arranged, and the second through hole (431) is adapted to the connecting rod (411) and is sleeved on the outer periphery of the connecting rod (411).

9. The grinding machine according to claim 8, characterized in that The first channel (01) comprises a first channel section (011) and a second channel section (012); the first channel section (011) is arranged to penetrate the turntable (10); a groove (21) is arranged at one end of the mounting frame (20) close to the rotary joint (30); a third through hole (211) is arranged at the bottom of the groove (21); a mounting cavity is arranged in the mounting frame (20); the mounting cavity is communicated between the first channel section (011) and the third through hole (211) and forms the second channel section (012) with the third through hole (211); the support member comprises: 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 arranged in the copper sleeve (43) and communicated with the third through hole (211).

10. The grinding machine according to any one of claims 2 to 9, characterized in that The turntable (10) further comprises a driving component, wherein the driving component comprises a driving member and a mounting member, wherein the mounting member mounts the driving member on the base (11), and the turntable (12) comprises: An axis core (121), the axis 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 axis core (121) is parallel to the first direction; A first connection plate (122), the first connection plate (122) being mounted on a side of the shaft core (121) away from the base (11); a second connection plate (123), the second connection plate (123) being mounted on a surface of the first connection plate (122) away from the shaft core (121) and being fixedly connected to the mounting frame (20); Wherein, along the first direction, the first channel (01) is sequentially arranged to penetrate the base (11), the shaft core (121), the first connecting plate (122), the second connecting plate (123) and the mounting frame (20).

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