Eccentric swing mechanism of polishing machine and polishing machine

Abstract

The present invention discloses an eccentric swing mechanism of a polishing machine and a polishing machine, including: a fixed platform, on which a support structure is provided; a moving platform, which is arranged on the support structure; an eccentric distance adjustment structure, which includes a moving part and a driving part, the moving part is connected to the moving platform, and the driving part can drive the moving part and the moving platform to translate; a driving assembly, which is arranged on the fixed platform and corresponds to the eccentric distance adjustment structure; the driving assembly includes a main driving member, a first driving member, a second driving member and a clutch member, the first driving member is connected to the moving platform, and the second driving member is used to drive the driving part to act under the action of the main driving member; the clutch member is used to adjust the power transmission path of the main driving member. The present invention realizes the technical effect of being able to automatically adjust the eccentric distance of the moving platform, making the adjustment process simple and convenient, and being able to have higher adjustment accuracy.

Description

Technical Field

[0001] The present invention relates to the technical field of polishing equipment, and more particularly, to an eccentric swing mechanism and a polishing machine for a polishing machine. Background Art

[0002] The eccentricity of the planetary swing structure of a diamond polishing machine needs to be adjusted manually during shutdown. When adjusting, it is necessary to manually disconnect the connection between the driving part and the swinging part, and manually adjust the position of the swinging part to adjust the eccentricity, resulting in a cumbersome adjustment process and it is difficult to guarantee the accuracy of manual adjustment. Summary of the Invention

[0003] The main object of the present invention is to provide a solution to the problem of difficult adjustment of the eccentricity of the swing mechanism of a polishing machine in related technologies.

[0004] To achieve the above object, the present invention provides an eccentric swing mechanism for a polishing machine, including:

[0005] A fixed platform, on which a support structure is provided;

[0006] A moving platform, which is arranged on the support structure, and the moving platform can eccentrically swing and translate relative to the fixed platform through the support structure;

[0007] An eccentricity adjustment structure, which is provided in two groups and is respectively located on both sides of the moving platform. The eccentricity adjustment structure includes a moving part and a driving part. The moving part is connected to the moving platform, and the driving part is configured to be driven to drive the moving part and the moving platform to translate;

[0008] A driving assembly, which is arranged on the fixed platform, and the driving assembly is provided in two groups and corresponds to the two groups of eccentricity adjustment structures respectively;

[0009] The driving assembly includes a main driving member, a first driving member, a second driving member and a clutch member. The first driving member is connected to the moving platform through the moving part and is used to drive the moving platform to eccentrically swing under the action of the main driving member. The second driving member is used to drive the driving part to act under the action of the main driving member;

[0010] The clutch member has a first linkage state and a second linkage state. In the first linkage state, the main driving member is linked with the first driving member, and the main driving member is separated from the second driving member; in the second linkage state, the main driving member is linked with the second driving member, and the main driving member is separated from the first driving member.

[0011] Further, the first driving member includes a fixed cavity;

[0012] A part of the main driving member is located in the fixed cavity, the driving part is arranged in the fixed cavity, the upper end of the moving part extends out of the fixed cavity and is connected to the moving platform, and the fixed cavity drives the moving platform to swing eccentrically through the moving part under the action of the main driving member;

[0013] The clutch end of the clutch member and the second driving member are arranged in the fixed cavity.

[0014] Further, the rotation axis of the main driving member is perpendicular to the moving direction of the moving part;

[0015] The driving part includes a first reversing structure, the second driving member includes a second reversing structure, and the first reversing structure cooperates with the second reversing structure to transmit the power of the main driving member to the moving part.

[0016] Further, the driving part includes a driving screw, the first reversing structure includes a first bevel gear, the driving screw is rotatably connected to the fixed cavity, and the first bevel gear is sleeved and fixed on the driving screw;

[0017] The moving part includes a moving shaft, the first end of the moving shaft is threadedly connected to the driving screw, and the second end of the moving shaft is connected to the moving platform.

[0018] Further, the second reversing structure includes a second bevel gear, and the second bevel gear can be meshed with the first bevel gear.

[0019] Further, it further includes a fixing mechanism, the fixing mechanism includes a fixing part and a movable part, the fixing part is fixedly arranged on the fixed platform, and the movable part is arranged to be driven to be connected to and disengaged from the first driving member.

[0020] Further, the movable part includes a telescopic rod, the upper end of the telescopic rod can extend towards the first driving member and be connected to the first driving member, and can retract away from the first driving member and be disengaged from the first driving member.

[0021] Further, the upper end of the telescopic rod is provided with a flexible arc-shaped pressing head, the upper surface of the arc-shaped pressing head is set as an arc surface, and the arc surface is used to abut against the lower end surface of the first driving member.

[0022] Further, the main driving member includes a driving outer shaft and a driving inner shaft, the driving outer shaft is rotatably installed on the fixed platform, and the driving outer shaft is arranged to be driven to rotate around a fixed axis;

[0023] The driving inner shaft is arranged inside the driving outer shaft, and the driving inner shaft is connected to the driving outer shaft through a transmission member, so that the driving outer shaft can drive the driving inner shaft to rotate. At the same time, the driving inner shaft can linearly move along the axial direction of the driving inner shaft;

[0024] The upper end of the driving inner shaft extends into the fixed cavity and is in transmission connection with the second driving member;

[0025] The clutch member includes a telescopic driving structure. The clutch end of the clutch member includes a first plugging structure and a second plugging structure. The first plugging structure is arranged inside the fixed cavity, and the second plugging structure is arranged at the upper end of the driving inner shaft. The first plugging structure and the second plugging structure can be connected and disengaged in a plugging and unplugging manner;

[0026] The telescopic driving structure is used to drive the driving inner shaft to linearly move along the axial direction, so that the first plugging structure and the second plugging structure are connected and disengaged.

[0027] Further, the clutch end further includes a clutch disc. The clutch disc is fixed at the upper end of the driving inner shaft, and the second plugging structure is arranged on the clutch disc.

[0028] Further, the first plugging structure is a plugging hole, and a plurality of plugging holes are arranged and distributed circumferentially;

[0029] The second plugging structure is arranged as a plugging pin. The plugging pin corresponds to the plugging hole and is in plugging fit with the plugging hole.

[0030] Further, the telescopic driving structure includes a cylinder fixed at the lower end of the driving outer shaft. A piston is arranged inside the cylinder, and the piston is fixedly connected to the lower end of the driving inner shaft;

[0031] A rotary joint for air inlet and outlet is arranged at the lower end of the cylinder.

[0032] Further, the support structure is arranged in four groups and distributed at the four corners of the fixed platform. The support structure includes a universal rolling ball bearing. Four sliding blocks are arranged at the lower end of the moving platform, and the sliding blocks are connected to the corresponding universal rolling ball bearings.

[0033] Further, a driving motor is arranged on the fixed platform. A driving wheel is arranged at the output end of the driving motor, and a driven wheel is fixedly arranged on the driving outer shaft. The driving wheel is in transmission connection with the driven wheel.

[0034] Further, an angle information monitoring component is further included. The angle information monitoring component is used to monitor the rotation angle of the driving outer shaft.

[0035] According to another aspect of the present invention, there is provided a polishing machine including the above-mentioned eccentric swing mechanism of the polishing machine.

[0036] In an embodiment of the present invention, a fixed platform is provided, and a plurality of rolling support structures are arranged on the fixed platform; a moving platform is arranged on the support structures, and the moving platform can eccentrically swing and translate relative to the fixed platform through the support structures; an eccentric distance adjustment structure is provided in two groups and is respectively located on both sides of the moving platform. The eccentric distance adjustment structure includes a moving part and a driving part. The moving part is connected to the moving platform, and the driving part is configured to be able to drive the moving part and the moving platform to translate under drive; a driving assembly is arranged on the fixed platform, and the driving assembly is provided in two groups and corresponds to the two groups of eccentric distance adjustment structures respectively; the driving assembly includes a main driving member, a first driving member, a second driving member and a clutch member. The first driving member is connected to the moving platform through the moving part and is used to drive the moving platform to eccentrically swing under the action of the main driving member. The second driving member is used to drive the driving part to act under the action of the main driving member; the clutch member has a first linkage state and a second linkage state. In the first linkage state, the main driving member is linked with the first driving member, and the main driving member is separated from the second driving member; in the second linkage state, the main driving member is linked with the second driving member, and the main driving member is separated from the first driving member.

[0037] On the one hand, when it is necessary to adjust the eccentric distance of the moving platform, the clutch members on both sides are controlled to be in the second linkage state. At this time, the main driving member can drive the driving part of the eccentric distance adjustment structure through the second driving member, so as to drive the moving part to linearly move and drive the moving platform to translate, so as to adjust the eccentric distance of the moving platform. After the adjustment is in place, the clutch members on both sides are controlled to be in the first linkage state. At this time, the main driving member can drive the moving part to rotate through the first driving member, and the moving part drives the moving platform to eccentrically swing, so that the moving platform performs a polishing motion. It can be seen that this embodiment realizes the technical effect of being able to automatically adjust the eccentric distance of the moving platform, making the adjustment process simpler and more convenient, and being able to have higher adjustment accuracy, thereby solving the problem of difficult adjustment of the eccentric distance of the swing mechanism of the polishing machine in the related art.

[0038] On the other hand, in this embodiment, the power source for driving the adjustment of the eccentric distance of the moving platform is the same as the power source for driving the eccentric swing of the moving platform. Different power transmission paths are selected through the clutch member to achieve different purposes, thereby avoiding the high cost caused by using multiple power sources, reducing the occupied space of the entire device, and making the overall structure of the device more compact. Description of the Drawings

[0039] The accompanying drawings that form a part of the present invention are used to provide a further understanding of the present invention, making other features, objectives, and advantages of the present invention more apparent. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0040] Figure 1 is a schematic axonometric structure diagram of an eccentric swing mechanism of a polishing machine according to an embodiment of the present invention;

[0041] Figure 2 is a schematic bottom view structure diagram of an eccentric swing mechanism of a polishing machine according to an embodiment of the present invention;

[0042] Figure 3 is a schematic structure diagram of a fixed platform according to an embodiment of the present invention;

[0043] Figure 4 is a schematic structure diagram of a support structure according to an embodiment of the present invention;

[0044] Figure 5 is a schematic cross-sectional structure diagram of an eccentric swing mechanism of a polishing machine according to an embodiment of the present invention;

[0045] Figure 6 is a schematic structure diagram of a fixing mechanism according to an embodiment of the present invention;

[0046] Figure 7 is Figure 5 a schematic diagram of a partial structure in

[0047] Figure 8 is Figure 5 a schematic diagram of a partial structure in

[0048] Figure 9 is Figure 5 a schematic diagram of a partial structure in

[0049] Among them, 1 is a mobile platform, 2 is a fixed platform, 3 is a first driving member, 30 is a fixed cavity, 31 is a cover plate, 32 is a sliding hole, 33 is a side plate, 34 is a bottom plate, 4 is a support structure, 40 is a universal rolling ball bearing, 5 is a main driving member, 50 is a driving inner shaft, 51 is a driving outer shaft, 6 is an angle information monitoring component, 7 is a driven wheel, 8 is a driving wheel, 9 is a driving motor, 10 is an eccentricity adjustment structure, 100 is a driving part, 1000 is a driving screw, 1001 is a first bevel gear, 101 is a moving part, 1010 is a moving shaft, 11 is a slider, 12 is a fixing mechanism, 120 is a fixing part, 121 is a movable part, 1210 is a telescopic rod, 1211 is an arc-shaped pressing head, 1212 is an arc-shaped surface, 13 is a second driving member, 130 is a second bevel gear, 14 is a clutch member, 140 is a telescopic driving structure, 1400 is a cylinder, 1401 is a rotary joint, 141 is a clutch end, 1410 is a clutch disc, 1411 is a second plugging structure, 1412 is a first plugging structure, 15 is a transmission member, 16 is a position detection sensor. Detailed implementation manners

[0050] In order to enable those skilled in the art to better understand the solution of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0051] It should be noted that the terms "first", "second", etc. in the description and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and do not have to be used to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so as to implement the embodiments of the present invention described herein.

[0052] In the present invention, the orientation or positional relationship indicated by terms such as "upper", "lower", "inner", etc. is based on the orientation or positional relationship shown in the drawings. These terms are mainly used to better describe the present invention and its embodiments, and are not used to limit that the indicated devices, elements or components must have a specific orientation, or be constructed and operated in a specific orientation.

[0053] Moreover, in addition to being able to represent an orientation or positional relationship, some of the above terms may also be used to represent other meanings. For example, the term "upper" may also be used to represent a certain attachment relationship or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in the present invention can be understood according to specific circumstances.

[0054] In addition, terms such as "arranged", "provided with", "connected", "fixed", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or an internal connection between two devices, components or parts. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0055] In addition, the meaning of the term "plurality" should be two or more.

[0056] It should be noted that, without conflict, the embodiments in the present invention and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the drawings and in combination with the embodiments.

[0057] To solve the related technical problems, as Figures 1 to 5 shown, an eccentric swing mechanism of a polishing machine according to an embodiment of the present invention includes:

[0058] A fixed platform 2, on which a support structure 4 is arranged;

[0059] A moving platform 1, which is arranged on the support structure 4, and the moving platform 1 can eccentrically swing and translate relative to the fixed platform 2 through the support structure 4;

[0060] An eccentric distance adjustment structure 10, which is arranged in two groups and is respectively located on both sides of the moving platform 1. The eccentric distance adjustment structure 10 includes a moving part 101 and a driving part 100. The moving part 101 is connected to the moving platform 1, and the driving part 100 is arranged to be driven to drive the moving part 101 and the moving platform 1 to translate;

[0061] A driving assembly, which is arranged on the fixed platform 2 and is arranged in two groups and corresponds to the two groups of eccentric distance adjustment structures 10 respectively;

[0062] The driving assembly includes a main driving member 5, a first driving member 3, a second driving member 13 and a clutch member 14. The first driving member 3 is connected to the moving platform 1 through the moving part 101 and is used to drive the moving platform 1 to eccentrically swing under the action of the main driving member 5. The second driving member 13 is used to drive the driving part 100 to act under the action of the main driving member 5;

[0063] The clutch member 14 has a first linkage state and a second linkage state. In the first linkage state, the main driving member 5 is linked with the first driving member 3, and the main driving member 5 is separated from the second driving member 13; in the second linkage state, the main driving member 5 is linked with the second driving member 13, and the main driving member 5 is separated from the first driving member 3.

[0064] In this embodiment, as Figure 1 and Figure 3 shown, the fixed platform 2, as a fixed base structure, can be fixedly installed on the polishing machine. A support structure 4 is arranged at the upper end of the fixed platform 2, and the moving platform 1 is installed on the support structure 4. The support structure 4 plays a supporting role for the moving platform 1, and at the same time, the moving platform 1 can perform eccentric swinging on the support structure 4. In one implementation manner, the support structure 4 includes a rotatable rotating part, and the moving platform 1 can be placed on the rotating part and pressed by a pressing structure. During the eccentric swinging of the moving platform 1, the rotating part rotates synchronously, so that a rolling friction is formed between the rotating part and the moving platform 1, reducing the frictional force.

[0065] The eccentric distance adjustment structure 10 is used to automatically adjust the eccentric distance of the moving platform 1. In other words, the horizontal position of the moving platform 1 can be adjusted through the eccentric distance adjustment structure 10. In this embodiment, the eccentric distance adjustment structure 10 is provided in two groups and distributed on both sides of the moving platform 1. The two groups of eccentric distance adjustment structures 10 jointly drive the moving platform 1 to translate, so as to adjust the eccentric distance of the moving platform 1. In this embodiment, as Figure 5 shown, the eccentric distance adjustment structure 10 includes a moving part 101 and a driving part 100. The moving part 101 is connected to the moving platform 1, and the driving part 100 is configured to be able to drive the moving part 101 and the moving platform 1 to translate.

[0066] Specifically, in this embodiment, the moving part 101 is a structure directly connected to the moving platform 1. The moving part 101 can at least linearly reciprocate in a single direction to drive the moving platform 1 to translate, and the driving part 100 can drive the moving part 101 to move linearly. In one implementation manner, both the driving part 100 and the moving part 101 can output linear motion. For example, the driving part 100 is a slider structure that can linearly move vertically, and the moving part 101 can linearly move horizontally. The driving part 100 is connected to the moving part 101 through a connecting rod.

[0067] In another implementation manner, the driving part 100 can output rotational motion, and the moving part 101 can output linear motion. For example, the driving part 100 and the moving part 101 form a crank-slider structure, or the driving part 100 is a gear assembly, the moving part 101 is a rack structure, or the driving part 100 is a combination of a gear assembly and a lead screw, and the moving part 101 is a lead screw slider, etc. This embodiment does not limit it here. Preferably, the driving part 100 adopts a structure that can output rotational motion. The reason is that in this embodiment, the motion of the driving part 100 and the eccentric swinging of the moving platform 1 share a power source. Therefore, the power source is a component that can output rotational motion. When the driving part 100 is a structure that can output rotational motion, it can be better adapted to the power source.

[0068] As shown Figure 2 in the figure, the driving assembly is a structure that drives the eccentric swing of the mobile platform 1 and the driving part 100 and the moving part 101 in the eccentric distance adjustment structure 10 to act. In this embodiment, two sets of driving assemblies are provided and respectively correspond to the eccentric distance adjustment structures 10 on both sides. The driving assembly is installed on the fixed platform 2 and includes a main driving member 5, a first driving member 3, a second driving member 13 and a clutch member 14. Among them, the main driving member 5 can output a rotational motion under drive, the first driving member 3 can be installed at the output end of the main driving member 5, and is driven by the main driving members 5 on both sides to drive the first driving member 3 to rotate, thereby driving the moving part 101 to rotate eccentrically, and further driving the mobile platform 1 to swing eccentrically. One end of the second driving member 13 is in transmission connection with the driving part 100 in the eccentric distance adjustment structure 10, and the other end can be in transmission connection with the output end of the main driving member 5. Under the rotational action of the main driving member 5, the driving part 100 is driven to act, and then the moving part 101 is driven to act by the driving part 100, and further the mobile platform 1 is driven to translate to adjust the eccentric distance of the mobile platform 1.

[0069] It can be seen that in this embodiment, the main driving member 5 can not only transmit power to the first driving member 3 to drive the mobile platform 1 to swing eccentrically, but also transmit power to the moving part 101 of the eccentric distance adjustment structure 10 through the second driving member 13 to drive the mobile platform 1 to translate. Obviously, the eccentric swing and translation of the mobile platform 1 cannot be carried out simultaneously. Therefore, it is necessary to adjust the power transmission path of the main driving member 5 through the clutch member 14. It is expected that when the eccentric distance needs to be adjusted, the main driving member 5 only transmits power to the second driving member 13, and when the mobile platform 1 needs to swing eccentrically, only transmits power to the first driving member 3.

[0070] For this reason, in this embodiment, the clutch member 14 has a first linkage state and a second linkage state. In the first linkage state, the main driving member 5 is linked with the first driving member 3, and the main driving member 5 is separated from the second driving member 13; in the second linkage state, the main driving member 5 is linked with the second driving member 13, and the main driving member 5 is separated from the first driving member 3.

[0071] Specifically, in this embodiment, the clutch member 14 is a structure that can change the power transmission path, and in application, a similar clutch structure in related technologies can be adopted. In a specific implementation manner, the clutch member 14 can be a structure including a pin or a key, and the power transmission path is adjusted by the pin or the key disengaging from and inserting into one of the members. In this embodiment, no limitation is made on this here.

[0072] On the one hand, when it is necessary to adjust the eccentricity of the mobile platform 1, the clutch members 14 on both sides are controlled to be in the second linkage state. At this time, the main driving member 5 can drive the driving part 100 of the eccentricity adjustment structure 10 to act through the second driving member 13, so as to drive the moving part 101 to move linearly and drive the mobile platform 1 to translate, so as to adjust the eccentricity of the mobile platform 1. After the adjustment is in place, the clutch members 14 on both sides are controlled to be in the first linkage state. At this time, the main driving member 5 can drive the mobile platform 1 to swing eccentrically through the first driving member 3, so that the mobile platform 1 performs a polishing motion. It can be seen that this embodiment realizes the technical effect of automatically adjusting the eccentricity of the mobile platform 1, making the adjustment process simpler and more convenient, and having higher adjustment accuracy, thus solving the problem of difficult eccentricity adjustment of the swing mechanism of the polishing machine in the related art.

[0073] On the other hand, in this embodiment, the power source for driving the eccentricity adjustment of the mobile platform 1 is the same as the power source for driving the eccentric swing of the mobile platform 1. Different power transmission paths are selected through the clutch member 14 to achieve different purposes, thus avoiding the high cost caused by using multiple power sources, and reducing the occupied space of the entire device, making the overall structure of the device more compact.

[0074] As Figure 5 and Figure 9 shown, in an embodiment of the first driving member 3, the first driving member 3 includes a fixed cavity 30;

[0075] A part of the main driving member 5 is located in the fixed cavity 30, the driving part 100 is arranged in the fixed cavity 30, the upper end of the moving part 101 extends out of the fixed cavity 30 and is connected to the mobile platform 1, and the fixed cavity 30 drives the mobile platform 1 to swing eccentrically through the moving part 101 under the action of the main driving member 5;

[0076] The clutch end 141 of the clutch member 14 and the second driving member 13 are arranged in the fixed cavity 30.

[0077] Specifically, as Figure 9As shown, in this embodiment, the first driving member 3 includes a bottom plate 34, a side plate 33, and a cover plate 31. The bottom plate 34 is fixed on the fixed platform 2, the side plate 33 is fixed on the bottom plate 34, and the cover plate 31 is fixed at the upper end of the side plate 33. The side plate 33 can be a frame structure or a circular structure. The bottom plate 34, the side plate 33, and the cover plate 31 can be fixed by welding or screws, etc., and enclose a fixed cavity 30 after being fixed. The upper end of the main driving member 5 passes through the bottom plate 34 and extends into the fixed cavity 30, and the driving part 100 is installed in the fixed cavity 30, and specifically can be installed on the side plate 33. The lower end of the moving part 101 is in transmission connection with the driving part 100, and the upper end extends out of the fixed cavity 30 through the cover plate 31. Since the moving part 101 needs to move linearly, a structure such as a sliding hole 32 for the movement of the moving part 101 needs to be provided on the cover plate 31. The clutch end 141 of the clutch member 14 and the second driving member 13 are arranged in the fixed cavity 30, and the power transmission path is controlled by the action of the clutch end 141.

[0078] After the moving part 101 passes through the fixed cavity 30 and is connected to the fixed platform 2, the first driving member 3 is also connected to the fixed platform 2 through the moving part 101, and the first driving member 3 is eccentric with the moving part 101. Therefore, when the main driving member 5 drives the first driving member 3 to rotate, the first driving member 3 can drive the moving part to rotate eccentrically, so as to drive the moving platform 1 to swing eccentrically through the moving part 101. Under the action of the clutch end 141, the power output by the main driving member 5 can be selectively transmitted to the first driving member 3 and the second driving member 13.

[0079] In one embodiment, adjusting the eccentricity of the moving platform 1 requires controlling the movement of the moving platform 1 in the horizontal direction, and the eccentric swing of the moving platform 1 requires controlling the rotation of the moving platform 1 around the vertical axis. Since in the present invention, the adjustment of the eccentricity and the eccentric swing of the moving platform 1 are driven by the same power source, in this embodiment, the rotation axis of the main driving member 5 is perpendicular to the moving direction of the moving part 101. In other words, the moving part 101 moves linearly in the horizontal direction, and the rotation axis of the main driving member 5 is a vertical axis. Therefore, when driving the moving part 101 to move through the main driving member 5, the rotational motion output by the main driving member 5 needs to be reversed. Specifically, in this embodiment, the driving part 100 includes a first commutation structure, and the second driving member 13 includes a second commutation structure. The first commutation structure cooperates with the second commutation structure to transmit the power of the main driving member 5 to the moving part 101. In one embodiment, the first commutation structure and the second commutation structure can be structures such as a crank-slider 11 or a bevel gear structure, etc., and this embodiment does not limit it here.

[0080] In one embodiment, as Figure 7 and Figure 8As shown, the driving part 100 includes a driving screw 1000. The first commutation structure includes a first bevel gear 1001. The driving screw 1000 is rotatably connected to the fixed cavity 30, and the first bevel gear 1001 is sleeved and fixed on the driving screw 1000.

[0081] The moving part 101 includes a moving shaft 1010. The first end of the moving shaft 1010 is threadedly connected to the driving screw 1000, and the second end of the moving shaft 1010 is connected to the moving platform 1.

[0082] Specifically, in this embodiment, the driving screw 1000 is horizontally arranged in the fixed cavity 30, and both ends of the driving screw 1000 can be rotatably connected to the side wall of the fixed cavity 30 through bearings. The first commutation structure is the first bevel gear 1001 sleeved and fixed on the driving screw 1000. The first bevel gear 1001 can be close to one side wall of the fixed cavity 30, so as to reserve enough moving space for the moving part 101. The moving part 101 includes a vertically arranged moving shaft 1010. The lower end (i.e., the first end) of the moving shaft 1010 is threadedly connected to the driving screw 1000 as a nut, and the upper end (i.e., the second end) of the moving shaft 1010 passes through the fixed cavity 30 and is fixedly connected to the moving platform 1. Specifically, a connection hole can be opened on the moving platform 1, and the upper end of the moving shaft 1010 is inserted into the connection hole and fixed. When the driving screw 1000 is driven to rotate around a fixed axis, the moving shaft 1010 moves linearly on the driving screw 1000, thereby driving the moving platform 1 to translate to adjust the eccentricity of the moving platform 1. In this embodiment, the second commutation structure includes a second bevel gear 130, and the second bevel gear 130 can mesh with the first bevel gear 1001.

[0083] It should be noted that, as Figure 8 and Figure 9 shown, the second bevel gear 130 can mesh with and separate from the first bevel gear 1001 under the action of the clutch end 141 of the clutch member 14. When meshing, the main driving member 5 drives the second bevel gear 130 to rotate, the second bevel gear 130 drives the first bevel gear 1001 to rotate, thereby driving the driving screw 1000 to rotate, and further driving the moving shaft 1010 and the moving platform 1 to translate. When separated, the main driving member 5 drives the fixed cavity 30 to rotate, and the fixed cavity 30 drives the moving platform 1 to swing eccentrically through the moving shaft 1010.

[0084] Since when adjusting the eccentricity, the moving shaft 1010 needs to move linearly under the rotation of the driving screw 1000, it is necessary to limit the rotation of the moving shaft 1010, that is, it is necessary to control the first driving member 3 to remain fixed, and the sliding hole 32 on the first driving member 3 serves as a limiting structure for the moving shaft 1010 in the rotation direction. Therefore, as Figure 5 and Figure 6As shown, in this embodiment, a fixing mechanism 12 is further included. The fixing mechanism 12 includes a fixing part 120 and a movable part 121. The fixing part 120 is fixedly arranged on the fixed platform 2, and the movable part 121 is arranged to be driven to connect with and disengage from the first driving member 3.

[0085] In addition, it should be noted that after the eccentricity is adjusted, the moving shaft 1010 needs to remain eccentric with the rotation axis of the main driving member 5.

[0086] In this embodiment, the fixing mechanism 12 is used to keep the first driving member 3 fixed when adjusting the eccentricity. The fixing mechanism 12 includes a fixing part 120 installed on the fixed platform 2 and a movable part 121 connected to the fixing part 120. The end of the movable part 121 can be connected to the first driving member 3 to keep the fixed cavity 30 fixed, and can also be separated from the first driving member 3 to enable the first driving member 3 to rotate freely. In one implementation manner, the movable part 121 can abut against the first driving member 3 to fix the first driving member 3. In another implementation manner, the movable part 121 can be partially inserted into the first driving member 3 to fix the first driving member 3. In addition, the movable part 121 can move linearly in the vertical direction or in the horizontal linear direction, or can move in a rotating manner, which is not limited in this embodiment.

[0087] In one implementation manner, the movable part 121 is arranged to be able to move linearly in the vertical direction, thereby saving the lateral space of the device. Specifically, the movable part 121 includes a telescopic rod 1210. The upper end of the telescopic rod 1210 can extend towards the first driving member 3 and be connected to the first driving member 3, and can also retract away from the first driving member 3 and disengage from the first driving member 3.

[0088] In this embodiment, the fixing part 120 can adopt a cylinder 1400, a linear motor, a hydraulic cylinder, etc., and the telescopic rod 1210 can adopt a piston rod, etc. After the fixing part 120 is fixed on the fixed platform 2, it can drive the telescopic rod 1210 to move linearly in the vertical direction, so as to connect with and disengage from the first driving member 3, so as to fix the first driving member 3 and release the first driving member 3.

[0089] When the upper end of the telescopic rod 1210 fixes the first driving member 3 by abutting against the lower end surface of the first driving member 3, in order to be able to apply a better tightening force and avoid damaging the first driving member 3, in this embodiment, a flexible arc-shaped pressing head 1211 is arranged at the upper end of the telescopic rod 1210. The upper surface of the arc-shaped pressing head 1211 is arranged as an arc surface 1212, and the arc surface 1212 is used to abut against the lower end surface of the first driving member 3.

[0090] When being tightened, the arc-shaped pressing head 1211 generates a certain amount of deformation to absorb the extension amount of the telescopic rod 1210, and increases the contact area between the arc-shaped pressing head 1211 and the first driving member 3, thereby improving the connection stability.

[0091] In the present invention, the main driving member 5 is used to drive the first driving member 3 to rotate or drive the second driving member 13 to rotate under the action of the clutch member 14. In one embodiment, as Figures 7 to 9 shown, the main driving member 5 includes a driving outer shaft 51 and a driving inner shaft 50. The driving outer shaft 51 is rotatably installed on the fixed platform 2, and the driving outer shaft 51 is arranged to be driven to rotate around a fixed axis;

[0092] The driving inner shaft 50 is arranged inside the driving outer shaft 51. The driving inner shaft 50 is connected to the driving outer shaft 51 through a transmission member 15, so that the driving outer shaft 51 can drive the driving inner shaft 50 to rotate, and at the same time, the driving inner shaft 50 can linearly move along the axial direction of the driving inner shaft 50;

[0093] The upper end of the driving inner shaft 50 extends into the fixed cavity 30 and is in transmission connection with the second driving member 13;

[0094] The clutch member 14 includes a telescopic driving structure 140. The clutch end 141 of the clutch member 14 includes a first plugging structure 1412 and a second plugging structure 1411. The first plugging structure 1412 is arranged in the fixed cavity 30, and the second plugging structure 1411 is arranged at the upper end of the driving inner shaft 50. The first plugging structure 1412 and the second plugging structure 1411 can be connected and disengaged in a plugging and unplugging manner;

[0095] The telescopic driving structure 140 is used to drive the driving inner shaft 50 to linearly move along the axial direction, so that the first plugging structure 1412 and the second plugging structure 1411 are connected and disengaged.

[0096] Specifically, the driving outer shaft 51 is rotatably installed on the fixed platform 2 along the vertical direction through a bearing. The lower end of the driving outer shaft 51 is in transmission connection with the driving motor 9, and the driving motor 9 drives the driving outer shaft 51 to rotate around a fixed axis. An axially penetrating installation hole is arranged inside the driving outer shaft 51, the driving inner shaft 50 is installed in the installation hole, and the upper end of the driving inner shaft 50 extends out of the driving outer shaft 51 and extends into the fixed cavity 30 to be in transmission connection with the second driving member 13.

[0097] As Figure 9As shown, the first plug-in structure 1412 in the clutch member 14 is fixedly installed in the fixed cavity 30, and the second plug-in structure 1411 is fixedly installed at the upper end of the driving inner shaft 50. In this embodiment, the clutch process is a process in which the first plug-in structure 1412 and the second plug-in structure 1411 are connected and disengaged in a plug-in manner. Since the second plug-in structure 1411 is installed on the driving inner shaft 50, the driving inner shaft 50 needs to move linearly along the axial direction during the plug-in cooperation process between the second plug-in structure 1411 and the first plug-in structure 1412. For this reason, the clutch member 14 in this embodiment further includes a telescopic driving structure 140, and the telescopic driving structure 140 can drive the driving inner shaft 50 to move linearly along the axial direction within the driving outer shaft 51.

[0098] Since the driving inner shaft 50 also needs to be able to rotate under the drive of the driving outer shaft 51, the driving inner shaft 50 and the driving outer shaft 51 need to be connected by a transmission member 15 so that the rotation of the driving outer shaft 51 can be transmitted to the driving inner shaft 50. In one embodiment, the transmission member 15 is a spline provided on the driving inner shaft 50 or the driving outer shaft 51, and a chute matching the spline is provided on the driving outer shaft 51 or the driving inner shaft 50. During the telescopic process of the driving inner shaft 50, the spline slides in the chute, and at the same time, the driving outer shaft 51 drives the driving inner shaft 50 to rotate through the spline.

[0099] During the upward movement of the driving inner shaft 50, the second plug-in structure 1411 gradually disengages from the first plug-in structure 1412, and the second driving member 13 installed at the upper end of the driving inner shaft 50 is connected to the driving part 100 of the eccentricity adjustment structure 10. At this time, the rotation of the driving outer shaft 51 will drive the driving inner shaft 50 to rotate, and then drive the second driving member 13 and the driving part 100 to act. When the driving inner shaft 50 moves downward, the second plug-in structure 1411 is in plug-in cooperation with the first plug-in structure 1412, and the second driving member 13 disengages from the driving part 100. At this time, the rotation of the driving outer shaft 51 will drive the driving inner shaft 50 to rotate, and then drive the first driving member 3 to rotate through the first plug-in structure 1412 and the second plug-in structure 1411.

[0100] When the second driving member 13 is the second bevel gear 130 and the driving part 100 is the first bevel gear 1001, the above clutch process is a process of meshing and separating between the first bevel gear 1001 and the second bevel gear 130.

[0101] In one embodiment of the clutch end 141 of the clutch member 14, as Figure 9 shown, the clutch end 141 further includes a clutch disc 1410. The clutch disc 1410 is fixed to the upper end of the driving inner shaft 50, and the second plug-in structure 1411 is provided on the clutch disc 1410.

[0102] Specifically, the clutch disc 1410 can be sleeved and fixed on the upper end of the driving inner shaft 50, and a second insertion structure 1411 can be provided on the lower end surface of the clutch disc 1410. A boss can be formed on the upper surface of the bottom plate 34 of the first driving member 3, the upper end of the driving inner shaft 50 extends out of the boss, and a first insertion structure 1412 is provided at the upper end of the boss. In a specific embodiment, the first insertion structure 1412 is an insertion hole, and a plurality of insertion holes are provided and distributed circumferentially; the second insertion structure 1411 is provided as an insertion pin, and the insertion pin corresponds to the insertion hole and is inserted and matched with the insertion hole.

[0103] It can be understood that the first insertion structure 1412 can also be provided as an insertion pin, and similarly, the second insertion structure 1411 can also be provided as an insertion hole. In this embodiment, the insertion holes are evenly distributed circumferentially along the boss. During the process of adjusting the eccentricity, it is necessary to detect the rotation angle of the driving inner shaft 50. The rotation angle of the driving inner shaft 50 determines the adjustment value of the eccentricity. When the driving inner shaft 50 stops rotating, the insertion pin needs to be able to correspond to the insertion hole up and down. In other words, the adjustment process of the eccentricity in this embodiment is a stepwise adjustment.

[0104] Since the driving inner shaft 50 needs to be driven by the telescopic driving structure 140 to move linearly along the axial direction, as Figure 8 shown, in one embodiment, the telescopic driving structure 140 includes a cylinder 1400 fixed to the lower end of the driving outer shaft 51. A piston is provided in the cylinder 1400, and the piston is fixedly connected to the lower end of the driving inner shaft 50; a rotary joint 1401 for air inlet and outlet is provided at the lower end of the cylinder 1400. The driving inner shaft 50 is controlled to move linearly along the axial direction by the cylinder 1400. During the rotation of the driving inner shaft 50, due to the provision of the rotary joint 1401, the cylinder 1400 can rotate synchronously.

[0105] In another embodiment, the cylinder 1400 can be fixed on the fixed platform 2, the piston rod of the cylinder 1400 can be connected to the driving inner shaft 50 through the rotary joint 1401, and the cylinder 1400 remains fixed during the rotation of the driving inner shaft 50.

[0106] Of course, in this embodiment, the telescopic driving structure 140 can also adopt a linear motor or a hydraulic cylinder, etc.

[0107] Regarding the support of the moving platform 1, as Figure 1 shown, in the present invention, it is realized by providing a support structure 4 on the fixed platform 2. In one embodiment, in order to better support the movement of the moving platform 1, the support structure 4 is provided in four groups and distributed at the four corners of the fixed platform 2. The support structure 4 can adopt a hard rail sliding structure, but it needs to be frequently lubricated to be used. Excessive lubricating oil will cause the accumulation of lubricating oil, which will affect the use and the environment.

[0108] Therefore, in the present invention, asFigure 4 As shown, the support structure 4 is preferably a rolling support structure 4. Specifically, a universal rolling ball bearing 40 is provided inside the support structure 4, and four sliding blocks are provided at the lower end of the moving platform 1. The sliding blocks are connected to the corresponding universal rolling ball bearings 40. After the rolling ball bearings are provided, the moving platform 1 has rolling friction during movement, with less friction and smoother movement. And during the movement, it is necessary to frequently lubricate the support structure 4.

[0109] Since the driving outer shaft 51 needs to be driven by the driving motor 9 to rotate, therefore, as Figure 2 shown, in this embodiment, a driving motor 9 is provided on the fixed platform 2. A driving wheel 8 is provided at the output end of the driving motor 9, and a driven wheel 7 is fixedly provided on the driving outer shaft 51. The driving wheel 8 is in transmission connection with the driven wheel 7.

[0110] It should be noted that in this embodiment, driving outer shafts 51 are provided on both sides of the fixed platform 2, and the driving motor 9 is arranged between the two driving outer shafts 51. The driving wheel 8 of the driving motor 9 is connected to the driven wheels 7 on both sides through a belt or a chain, and the driving motor 9 drives the driving wheel 8 and the driven wheels 7 to rotate in the same direction.

[0111] Since the rotation angle of the driving outer shaft 51 determines the rotation angle of the driving inner shaft 50, and further determines the adjustment value of the eccentricity, therefore, to accurately monitor the adjustment value of the eccentricity, as Figure 2 shown, this embodiment further includes an angle information monitoring component 6 for monitoring the rotation angle of the driving outer shaft 51. In one implementation, the angle information monitoring component 6 can be an encoder or an angle sensor connected to the driving outer shaft 51, etc.

[0112] In addition, in one implementation, as Figure 5 shown, the first driving member 3 and the main driving member 5 are eccentrically arranged. And the fixing mechanism 12 arranged on one side of the main driving member 5 needs to press against the lower end of the first driving member 3 through the arc-shaped pressing head 1211 to adjust the eccentricity. Therefore, a region corresponding to the arc-shaped pressing head 1211 is required at the lower end of the first driving member 3. Since the first driving member 3 and the main driving member 5 are eccentrically arranged, in a relatively compact structure, when the first driving member 3 is driven to rotate to a certain angle, it may not correspond to the arc-shaped pressing head 1211, resulting in the arc-shaped pressing head 1211 being unable to fix the first driving member 3. For this reason, in this embodiment, a position detection sensor 16 is further provided on the fixed platform 2 to detect the position of the first driving member 3, so as to ensure that before the eccentricity is adjusted, the first driving member 3 is located at a position where it can be pressed tightly by the arc-shaped pressing head 1211. If not, the first driving member 3 should be controlled to rotate to the corresponding position before the eccentricity is adjusted.

[0113] According to another aspect of the present invention, there is provided a polishing machine including the above-mentioned eccentric swing mechanism of the polishing machine.

[0114] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention can have various modifications and changes. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. An eccentric swing mechanism for a polishing machine, characterized in that: include: A fixed platform, wherein a supporting structure is arranged on the fixed platform; A mobile platform, the mobile platform is arranged on the supporting structure, and the mobile platform can swing eccentrically and translate relative to the fixed platform through the supporting structure; The eccentricity adjustment structure is provided in two groups and is respectively located on both sides of the mobile platform. The eccentricity adjustment structure comprises a moving part and a driving part. The moving part is connected to the mobile platform, and the driving part is provided to be driven to drive the moving part to translate. A driving assembly is arranged on a fixed platform, and the driving assembly is arranged in two groups and corresponds to two groups of eccentricity adjustment structures respectively; The driving assembly includes a main driving member, a first driving member, a second driving member and a clutch member. The first driving member is connected to the mobile platform through the moving part and is used to drive the mobile platform to eccentrically swing under the action of the main driving member. The second driving member is used to drive the driving part to move under the action of the main driving member. The clutch member has a first linkage state and a second linkage state. In the first linkage state, the main driving member is linked with the first driving member, and the main driving member is separated from the second driving member. In the second linkage state, the main driving member is linked with the second driving member, and the main driving member is separated from the first driving member; The first drive member includes a fixed cavity; A part of the main driving component is located in the fixed cavity, the driving part is arranged in the fixed cavity, the upper end of the moving part extends out of the fixed cavity and is connected to the moving platform, and the fixed cavity drives the moving platform to eccentrically swing through the moving part under the action of the main driving component; The clutch end of the clutch member and the second driving member are arranged in the fixed cavity; The main driving component comprises a driving outer shaft and a driving inner shaft, wherein the driving outer shaft is rotatably mounted on the fixed platform and is configured to be driven to rotate about a fixed axis; The inner drive shaft is arranged inside the outer drive shaft, and the inner drive shaft and the outer drive shaft are connected through a transmission member, so that the outer drive shaft can drive the inner drive shaft to rotate, and the inner drive shaft can move linearly along the axial direction of the inner drive shaft; The upper end of the inner driving shaft extends into the fixed cavity and is drivingly connected to the second driving member; The clutch component includes a telescopic driving structure, and the clutch end of the clutch component includes a first plug-in structure and a second plug-in structure, the first plug-in structure is arranged in the fixed cavity, and the second plug-in structure is arranged at the upper end of the driving inner shaft, and the first plug-in structure and the second plug-in structure can be connected and disconnected in a plug-in manner; The telescopic driving structure is used to drive the inner driving shaft to move linearly along the axial direction so as to connect and disconnect the first plug-in structure with the second plug-in structure.

2. The eccentric swing mechanism of the polishing machine according to claim 1, characterized in that: The rotation axis of the main driving member is perpendicular to the moving direction of the moving part; The driving part includes a first reversing structure, and the second driving component includes a second reversing structure. The first reversing structure cooperates with the second reversing structure to transmit the power of the main driving component to the moving part.

3. The eccentric swing mechanism of the polishing machine according to claim 2, characterized in that: The driving part includes a driving screw, the first reversing structure includes a first bevel gear, the driving screw is rotatably connected to the fixed cavity, and the first bevel gear is sleeved and fixed on the driving screw; The moving part comprises a moving shaft, a first end of the moving shaft is threadedly connected to the driving screw, and a second end of the moving shaft is connected to the moving platform.

4. The eccentric swing mechanism of the polishing machine according to claim 3, characterized in that: The second reversing structure includes a second bevel gear, and the second bevel gear can mesh with the first bevel gear.

5. The eccentric swing mechanism of the polishing machine according to claim 1, characterized in that: It also includes a fixing mechanism, which includes a fixing part and a movable part. The fixing part is fixed on the fixing platform, and the movable part is configured to be connected to and separated from the first driving member by being driven.

6. The eccentric swing mechanism of the polishing machine according to claim 5, characterized in that: The movable part comprises a telescopic rod, the upper end of which can extend toward the first driving member and be connected to the first driving member, and can retract away from the first driving member and be separated from the first driving member.

7. The eccentric swing mechanism of the polishing machine according to claim 6, characterized in that: A flexible arc-shaped pressure head is arranged at the upper end of the telescopic rod, and the upper surface of the arc-shaped pressure head is arranged as an arc-shaped surface, and the arc-shaped surface is used to abut against the lower end surface of the first driving member.

8. The eccentric swing mechanism of the polishing machine according to claim 7, characterized in that: The clutch end also includes a clutch disc, which is fixed to the upper end of the inner driving shaft, and the second plug-in structure is arranged on the clutch disc.

9. The eccentric swing mechanism of the polishing machine according to claim 8, characterized in that: The first plug-in structure is a plug-in hole, which is provided in plurality and distributed along the circumferential direction; The second plug-in structure is configured as a plug-in pin, which corresponds to the plug-in hole and is plug-fitted with the plug-in hole.

10. The eccentric swing mechanism of the polishing machine according to claim 8, characterized in that: The telescopic driving structure comprises a cylinder fixedly arranged at the lower end of the driving outer shaft, a piston is arranged in the cylinder, and the piston is fixedly connected to the lower end of the driving inner shaft; The lower end of the cylinder is provided with a rotary joint for air inlet and outlet.

11. The eccentric swing mechanism of the polishing machine according to claim 1, characterized in that: The supporting structure is arranged in four groups and distributed at the four corners of the fixed platform. The supporting structure comprises a universal rolling ball bearing. The lower end of the mobile platform is provided with four sliding blocks, which are connected with the corresponding universal rolling ball bearings.

12. The eccentric swing mechanism of the polishing machine according to claim 8, characterized in that: A driving motor is arranged on the fixed platform, a driving wheel is arranged at the output end of the driving motor, a passive wheel is fixed on the driving outer shaft, and the driving wheel is drivingly connected with the passive wheel.

13. The eccentric swing mechanism of the polishing machine according to claim 8, characterized in that: It also includes an angle information monitoring component, which is used to monitor the rotation angle of the driving outer shaft.

14. A polishing machine, characterized in that: It comprises an eccentric swing mechanism of a polishing machine as described in any one of claims 1 to 13.

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