Grinding and polishing machine

Abstract

The application discloses a grinding and polishing machine. The grinding and polishing machine comprises a workbench, a swing arm mechanism and a grinding and polishing device. The workbench comprises a base, a rotary support and a bearing table, the rotary support is rotatably installed on the base, and the bearing table is fixedly installed on the rotary support. The swing arm mechanism comprises a supporting part, a connecting rod assembly and a swing arm part, the supporting part is arranged on the outer side of the workbench, a rotating disc is arranged on the supporting part, two ends of the connecting rod assembly are rotatably connected with the rotating disc and the swing arm part respectively, the connecting position of the connecting rod assembly and the rotating disc deviates from the rotating center of the rotating disc, the swing arm part is rotatably connected with the supporting part, and one end of the swing arm part is arranged in the air above the bearing table. The grinding and polishing device is arranged on the swing arm part and above the bearing table. The application can solve the problems of low grinding and polishing efficiency and difficulty in grinding and polishing large-size and large-diameter organic glass in the prior art.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of plate structure processing machine tools, in particular to a grinding and polishing machine tool. BACKGROUND

[0002] The super-large-caliber organic glass plate grinding and polishing machine tool is used for grinding and polishing the plane of the super-large-caliber organic glass plate, and the stability of the grinding and polishing machine tool is directly related to the flatness of the organic glass plate and the thickness of the organic glass plate.

[0003] The common grinding and polishing machine tool includes a positioning table and a grinding and polishing head. In actual work, the positioning table remains stationary, and the grinding and polishing head moves on the positioning table under the driving of a driving mechanism to grind and polish the organic glass. The grinding and polishing efficiency of this processing mode is low, and it is difficult to grind and polish large-size and large-caliber organic glasses. SUMMARY

[0004] The main purpose of the present application is to provide a grinding and polishing machine tool to at least solve the problem of low grinding and polishing efficiency of the existing grinding and polishing machine tool and the difficulty in grinding and polishing large-size and large-caliber organic glasses.

[0005] According to one aspect of the embodiment of the present application, a grinding and polishing machine tool is provided, comprising:

[0006] A workbench, the workbench comprising a base, a rotary support and a bearing table, the rotary support being rotatably mounted on the base, and the bearing table being fixedly mounted on the rotary support;

[0007] An arm swinging mechanism, the arm swinging mechanism comprising a support component, a driving component and an arm swinging component, the support component being arranged on the outside of the workbench, a rotating disc being arranged on the support component, the driving component comprising a connecting rod assembly, both ends of the connecting rod assembly being rotatably connected with the rotating disc and the arm swinging component respectively, and the connecting position of the connecting rod assembly and the rotating disc being offset from the rotation center of the rotating disc, the arm swinging component being rotatably connected with the support component, and one end of the arm swinging component being arranged in the air above the bearing table;

[0008] A grinding and polishing device, the grinding and polishing device being arranged on the arm swinging component and above the bearing table for grinding and polishing the workpiece placed on the bearing table.

[0009] Further, the driving component further comprises:

[0010] A driving part, the driving part being mounted on the rotating disc;

[0011] A sliding part is mounted on the rotating disk, and the sliding direction of the sliding part is consistent with the radial direction of the rotating disk. The first end of the connecting rod assembly is slidably connected to the sliding part, and the first end of the connecting rod assembly slides along the sliding part under the drive of the driving part.

[0012] Furthermore, the sliding part includes:

[0013] A slide rail is fixedly mounted on the rotating disk and extends radially along the rotating disk.

[0014] A lead screw, which is rotatably mounted on the rotating disk and extends along the length of the slide rail;

[0015] Nut, which is fitted onto the lead screw;

[0016] A slider is slidably mounted on the slide rail and fixedly connected to the nut, and the first end of the linkage assembly is rotatably connected to the slider.

[0017] Furthermore, the linkage assembly includes:

[0018] A first connecting rod, the first end of which is rotatably connected to the sliding part, and the second end of which is provided with a connecting nut;

[0019] The second link has its first end detachably connected to the second end of the first link via the connecting nut, and its second end is rotatably connected to the swing arm component.

[0020] Furthermore, the swing arm component includes:

[0021] A swinging part, the first end of which is rotatably mounted on the support member, the swinging part having a plurality of connecting parts, the plurality of connecting parts being at different distances from the rotation center of the swinging part, and the connecting rod assembly being selectively rotatably connected to one of the plurality of connecting parts;

[0022] A cantilever arm, one end of which is connected to the first end of the swinging part, and the other end of which is suspended above the support platform. The grinding and polishing device is located at the end of the cantilever arm away from the swinging part.

[0023] Furthermore, the swinging part is a swing plate, and an arc-shaped groove is provided at the end of the swing plate away from the cantilever. The arc-shaped groove extends toward the direction close to the sliding part, and the center of the arc-shaped groove is offset from the rotation center of the swinging part. Multiple connecting parts are formed at different positions along the length of the arc-shaped groove.

[0024] Furthermore, the grinding and polishing apparatus includes:

[0025] A positioning component, comprising a positioning seat and a positioning sleeve, wherein the positioning seat is fixedly installed on the end of the swing arm component, and the positioning sleeve is fixedly installed on the positioning seat, and the axial direction of the positioning sleeve is perpendicular to the support platform;

[0026] A polishing head includes a support, a drive component, a lead screw assembly, a guide rod, and a polishing disc. The guide rod passes through the positioning sleeve and can reciprocate along the axial direction of the positioning sleeve. The support is located at the top end of the guide rod, and the polishing disc is fixedly connected to the bottom end of the guide rod. The drive component is located on the support, and the lead screw assembly is connected between the positioning sleeve and the drive component. The drive component is used to drive the lead screw assembly to extend and retract along the height direction of the positioning sleeve to drive the guide rod to reciprocate along the axial direction of the positioning sleeve.

[0027] A clamping component includes a drive mechanism and a clamping mechanism. The drive mechanism is mounted on the positioning seat, and the clamping mechanism is disposed on the positioning sleeve and connected to the drive mechanism. The clamping mechanism has a locking position that clamps and fixes the guide rod within the positioning sleeve, and an unlocking position that avoids the guide rod so that the guide rod can reciprocate along the axial direction of the positioning sleeve. The drive mechanism is used to drive the clamping mechanism to switch between the locking position and the unlocking position.

[0028] Furthermore, the positioning sleeve has a mounting hole on its side wall, the axis of which is perpendicular to the axis of the positioning sleeve, and the mounting hole communicates with the internal space of the positioning sleeve; the clamping mechanism includes:

[0029] A connector, which passes through the mounting hole;

[0030] The locking block is a plurality of blocks, which are sequentially and spaced apart on the connector. The driving mechanism is connected to the connector and drives the plurality of locking blocks to move closer together to hold and lock the guide rod in the positioning sleeve and place it in the locked position.

[0031] Furthermore, the connecting member is a connecting rod, which passes through the mounting hole, and at least one limiting nut is sleeved on the end of the connecting rod away from the driving mechanism. Multiple locking blocks are sequentially and spaced on the connecting rod, and the end of the connecting rod near the driving mechanism is connected to the driving mechanism.

[0032] Furthermore, the drive mechanism includes:

[0033] A drive cylinder is mounted on the positioning seat and extends and retracts along an axis perpendicular to the mounting hole.

[0034] A hinge rod, the first end of which is hinged to the telescopic rod of the drive cylinder, and the second end of which is hinged to the end of the connector away from the limiting nut. The second end of the hinge rod is provided with an arc block, and the hinge position of the second end of the hinge rod and the connector is offset from the center of the arc block.

[0035] When the drive cylinder drives the hinge rod to rotate, the arc block is used to push multiple locking blocks to retract towards each other along the length of the connector to hold and lock the guide rod.

[0036] Compared with the prior art, the technical solution of this application has at least the following technical effects:

[0037] When a workpiece needs to be ground and polished, it is placed on a support table. When the slewing bearing rotates, it can drive the workpiece on the worktable to rotate. At the same time, the rotating disc rotates, which can drive the connecting rod assembly to pull the swing arm component to rotate on the support component. This can then drive the swing arm component to swing, and finally drive the grinding and polishing device installed at the end of the swing arm component to move to grind and polish the workpiece.

[0038] In other words, when the grinding and polishing machine tool in this application grinds and polishes the workpiece, the grinding and polishing device and the slewing bearing move simultaneously, which not only improves the grinding and polishing efficiency of the grinding and polishing machine tool on the workpiece, but also facilitates the grinding and polishing of large-sized and large-diameter workpieces. Attached Figure Description

[0039] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0040] Figure 1 This is a front view of the grinding and polishing machine tool disclosed in the embodiments of this application;

[0041] Figure 2 This is a top view of the grinding and polishing machine tool disclosed in the embodiments of this application;

[0042] Figure 3 This is a top view of the drive component portion of the grinding and polishing machine tool disclosed in an embodiment of this application;

[0043] Figure 4 for Figure 3 A magnified view of region P in the image;

[0044] Figure 5This is a front view of the linkage assembly disclosed in the embodiments of this application after being partially cut open;

[0045] Figure 6 This is a schematic diagram of the linkage assembly disclosed in the embodiments of this application;

[0046] Figure 7 This is a motion trajectory diagram of the swing arm mechanism disclosed in the embodiments of this application when neither the swing amplitude nor the eccentricity is adjusted;

[0047] Figure 8 The image shows the motion trajectory of the swing arm mechanism disclosed in this application after the swing amplitude is not adjusted, but the connection between the link assembly and the arc groove is adjusted.

[0048] Figure 9 This is a motion trajectory diagram of the swing arm mechanism disclosed in the embodiments of this application after the swing amplitude is adjusted, but the connection between the connecting rod assembly and the arc groove is not adjusted;

[0049] Figure 10 The image shows the motion trajectory of the swing arm mechanism disclosed in this application after the swing amplitude is adjusted and the connection position of the connecting rod assembly with the arc groove is also adjusted.

[0050] Figure 11 This is a schematic diagram of the grinding and polishing apparatus disclosed in the embodiments of this application from a first-view perspective.

[0051] Figure 12 This is a schematic diagram of the grinding and polishing apparatus disclosed in the embodiments of this application from a second perspective (with the support removed);

[0052] Figure 13 This is a front view of the grinding and polishing apparatus disclosed in the embodiments of this application;

[0053] Figure 14 for Figure 13 AA section view in the middle;

[0054] Figure 15 for Figure 11 A magnified view of region M in the image;

[0055] Figure 16 for Figure 12 A magnified view of region N in the image;

[0056] Figure 17 This is a perspective structural diagram of the hinge rod disclosed in the embodiments of this application;

[0057] Figure 18 This is a front view of the hinge rod disclosed in an embodiment of this application.

[0058] The above figures include the following reference numerals:

[0059] 10. Positioning component; 11. Positioning seat; 12. Positioning sleeve; 121. Mounting hole; 122. Adjusting clearance; 123. Adjusting bolt; 124. Clearance groove; 20. Grinding head; 21. Support part; 22. Driving component; 23. Screw assembly; 24. Guide rod; 25. Grinding disc; 26. Gearbox; 30. Clamping component; 31. Driving mechanism; 311. Driving cylinder; 312. Hinge rod; 3121. Arc block; 32. Clamping mechanism; 321. Connecting component; 322. Locking block; 3221. Arc surface; 323. Limit nut; 324. Abutment washer; 40. Roller; 50. Displacement detection element; 60. Supporting components; 61. Rotating disc; 611. Limit switch; 70. Driving components; 71. Driving part; 711. Second bevel gear; 72. Sliding part; 721. Slide rail; 722. Lead screw; 7221. First bevel gear; 723. Slider; 73. Linkage assembly; 731. Second connecting rod; 7311. Connecting nut; 7312. Second spherical bearing; 732. First connecting rod; 7321. First spherical bearing; 80. Swing arm assembly; 81. Cantilever; 82. Swinging part; 821. Arc groove; 100. Workpiece; 110. Worktable; 111. Base; 112. Slewing bearing; 113. Bearing platform. Detailed Implementation

[0060] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0061] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0062] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this application. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0063] See Figures 1 to 6 , Figure 11 As shown, according to an embodiment of this application, a grinding and polishing machine tool is provided. The grinding and polishing machine tool includes a worktable 110, a swing arm mechanism, and a grinding and polishing device.

[0064] The worktable 110 includes a base 111, a slewing bearing 112, and a support platform 113. The slewing bearing 112 is rotatably mounted on the base 111, and the support platform 113 is fixedly mounted on the slewing bearing 112 to support the workpiece 100, such as plexiglass, to be processed. The swing arm mechanism includes a support component 60, a drive component 70, and a swing arm component 80. The support component 60 is located on the outside of the worktable 110 and has a rotating disk 61. The drive component 70 includes a linkage assembly. 73, the two ends of the connecting rod assembly 73 are rotatably connected to the rotating disk 61 and the swing arm component 80 respectively, and the connection position of the connecting rod assembly 73 and the rotating disk 61 is offset from the rotation center of the rotating disk 61. The swing arm component 80 is rotatably connected to the support component 60, and one end of the swing arm component 80 is suspended above the support table 113. The grinding and polishing device is set on the swing arm component 80 and located above the support table 113 for grinding and polishing the workpiece 100 placed on the support table 113.

[0065] When it is necessary to grind and polish the workpiece 100, the workpiece 100 is placed on the support table 113. At this time, when the slewing bearing 112 rotates, it can drive the workpiece 100 placed on the worktable 110 to rotate. At the same time, the rotating disk 61 rotates, which can drive the connecting rod assembly 73 to pull the swing arm component 80 to rotate on the support component 60, thereby driving the swing arm component 80 to swing, and finally driving the grinding and polishing device installed at the end of the swing arm component 80 to move to grind and polish the workpiece 100.

[0066] In other words, when the grinding and polishing machine tool in this embodiment grinds and polishes the workpiece 100, the grinding and polishing device and the slewing bearing 112 move simultaneously, which not only improves the grinding and polishing efficiency of the grinding and polishing machine tool on the workpiece 100, but also facilitates the grinding and polishing of large-sized and large-diameter workpieces 100.

[0067] Optionally, the worktable 110 in this embodiment is a frustum structure. The bottom of the frustum structure is provided with the aforementioned slewing bearing 112. The slewing bearing 112 can be driven to rotate by a drive motor, pulley mechanism, etc. When the slewing bearing 112 rotates, it can drive the bearing platform 113 to rotate, which in turn can drive the workpiece 100 placed on the slewing bearing 112 to rotate, which is convenient for grinding and polishing large-diameter and large-size workpieces 100.

[0068] Combination Figures 1 to 10 As shown, the driving component 70 in this embodiment further includes a driving part 71 and a sliding part 72. The driving part 71 is mounted on the rotating disk 61; the sliding part 72 is mounted on the rotating disk 61, and the sliding direction of the sliding part 72 is consistent with the radial direction of the rotating disk 61. The first end of the connecting rod assembly 73 is slidably connected to the sliding part 72, and the first end of the connecting rod assembly 73 slides along the sliding part 72 under the drive of the driving part 71. In the actual processing of the workpiece 100, the swing range of the cantilever 81 can be adjusted for workpieces 100 of different sizes. At this time, the driving part 71 drives the first end of the connecting rod assembly 73 to slide along the sliding part 72. When the driving part 71 drives the connecting rod assembly 73 to move towards the rotation center of the rotating disk 61, the swing range of the cantilever 81 can be reduced. When the driving part 71 drives the connecting rod assembly 73 to move away from the rotation center of the rotating disk 61, the swing range of the cantilever 81 can be increased. The specific adjustment is made according to the size of the workpiece 100 to be processed.

[0069] Furthermore, the sliding part 72 includes a slide rail 721, a lead screw 722, a nut (not shown in the figure), and a slider 723. The slide rail 721 is fixedly mounted on the rotating disk 61 and extends radially along the rotating disk 61; the lead screw 722 is rotatably mounted on the rotating disk 61 and extends along the length of the slide rail 721; the nut is sleeved on the lead screw 722; the slider 723 is slidably mounted on the slide rail 721 and fixedly connected to the nut, and the first end of the connecting rod assembly 73 is rotatably connected to the slider 723. With this configuration, when the rotating disk 61 rotates, it can drive the sliding part 72 to move along the outer periphery of the rotating disk 61, which in turn can drive the connecting rod assembly 73 to pull the swing part 82 and the cantilever 81 to swing. In addition, when it is necessary to adjust the swing range of the cantilever 81, it is only necessary to drive the lead screw 722 to rotate, which in turn drives the nut and the slider 723 to move along the slide rail 721.

[0070] In this embodiment, a first bevel gear 7221 is fitted onto the lead screw 722, and the drive unit 71 includes a drive motor, which is fixedly mounted at the center of the rotating disk 61. The motor shaft of the drive motor is perpendicular to the rotating disk 61, and a second bevel gear 711 is provided on the output shaft of the drive motor. The second bevel gear 711 meshes with the first bevel gear 7221. Optionally, the drive motor is a servo motor. When the drive motor drives the second bevel gear 711 to rotate, it can drive the first bevel gear 7221 and the lead screw 722 to rotate, thereby driving the nut and the slider 723 to slide along the slide rail 721. The structure is simple and easy to adjust.

[0071] Of course, in other embodiments of this application, the slider 723 can be driven by a drive cylinder to move along the slide rail 721 without the need for a nut, lead screw 722, second bevel gear 711 and first bevel gear 7221. Any other modifications under the concept of this application are within the protection scope of this application.

[0072] Furthermore, in this embodiment, two limit switches 611 are provided on the rotating disk 61, and these two limit switches 611 are located at both ends of the slide rail 721 along its length. The limit switches 611 facilitate the detection of the displacement of the slider 723, thereby enabling effective control of the drive motor, resulting in a stable and reliable structure.

[0073] The grinding and polishing device in this embodiment has multiple models, which are selectively connected to the end of the cantilever 81. In actual operation, by installing different grinding and polishing devices, the different grinding and polishing requirements of the workpiece 100 can be met. The connecting rod assembly 73 includes at least two connecting rods, which are detachably connected in sequence. By setting the connecting rod assembly 73 to have two or more detachable connecting rods, when it is necessary to repair the swing arm mechanism or replace it with a different model of grinding and polishing device, the connecting rods among the multiple connecting rods can be disassembled. In this way, the drive component 70 and the swing arm component 80 can be isolated. At this time, the swing arm component 80 can rotate automatically without being constrained by the rotating disk 61, which can be used for the maintenance of the swing arm component 80 and the replacement of the grinding and polishing device.

[0074] For example, the linkage assembly 73 includes a first link 732 and a second link 731. The first end of the first link 732 is rotatably connected to the sliding part 72, and the second end of the first link 732 is provided with a connecting nut 7311. The first end of the second link 731 is detachably connected to the second end of the first link 732 via the connecting nut 7311, and the second end of the second link 731 is rotatably connected to the swing arm component 80. The detachable connection of the linkage assembly 73 is achieved by providing a connecting nut 7311 at the second end of the first link 732, resulting in a simple structure and easy assembly and disassembly.

[0075] Optionally, in this embodiment, the second connecting rod 731 may be a connecting sleeve, which is sleeved on the end of the first connecting rod 732 and connected by a connecting nut 7311.

[0076] Of course, in other embodiments of this application, the connecting rods may be set to three or more. Any other variations of the concept of this application are within the protection scope of this application.

[0077] For ease of connection, in this embodiment, the first end of the first connecting rod 732 is provided with a first fisheye joint bearing 7321, and the first connecting rod 732 is rotatably connected to the sliding part 72 via the first fisheye joint bearing 7321. Optionally, the second end of the second connecting rod 731 is provided with a second fisheye joint bearing 7312, and the second connecting rod 731 is rotatably connected to the swing part 82 via the second fisheye joint bearing 7312. The structure is simple and easy to connect. The first fisheye joint bearing 7321 is connected to the first connecting rod 732 by a threaded connection, and a nut is provided at the bottom to prevent loosening; similarly, the second fisheye joint bearing 7312 is connected to the second connecting rod 731 by a threaded connection, and a nut is provided at the bottom to prevent loosening, for connection to the swing part 82; the use of the first fisheye joint bearing 7321 and the second fisheye joint bearing 7312 can avoid over-positioning during the transmission process, which could lead to failure problems such as bending of the connecting rod assembly 73.

[0078] Of course, in other embodiments of this application, the first end of the first link 732 and the second end of the second link 731 can also be connected to the sliding part 72 and the swing part 82 by a structure such as a hinge. Any other variation of the concept of this application is within the protection scope of this application.

[0079] Furthermore, the swing arm component 80 includes a swing section 82 and a cantilever 81. The first end of the swing section 82 is rotatably mounted on the support component 60. The swing section 82 has multiple connecting points, each at a different distance from the rotation center of the swing section 82. The connecting rod assembly 73 is selectively and rotatably connected to one of these connecting points. One end of the cantilever 81 is connected to the first end of the swing section 82, and the other end of the cantilever 81 is suspended above the support platform 113. The grinding and polishing device is located at the end of the cantilever 81 furthest from the swing section 82. In addition, if it is necessary to perform point grinding and polishing on the workpiece 100, it is only necessary to adjust the connection position between the second end of the connecting rod assembly 73 and the swing section 82, that is, to selectively connect the second end of the connecting rod assembly 73 to one of the multiple connecting points. This allows adjustment of the movement range of the grinding and polishing device mounted on the cantilever 81. The farther the connection point between the second end of the connecting rod assembly 73 and the swing section 82 is from the swing center of the swing section 82, the smaller the swing range of the grinding and polishing device, facilitating point grinding and polishing.

[0080] Based on the above structure, it can be seen that the grinding and polishing machine tool of this application can achieve grinding and polishing or fixed-point grinding and polishing of workpieces 100 of different sizes by setting a swing arm mechanism, driving the connecting rod assembly 73, or adjusting the connection position of the connecting rod assembly 73. The structure is simple and easy to operate, which can greatly improve the processing efficiency of workpieces 100 and reduce the production and manufacturing cost of the grinding and polishing machine tool.

[0081] Specifically, in this embodiment, the swing part 82 is a swing plate. An arc-shaped groove 821 is provided at the end of the swing plate away from the cantilever 81. The arc-shaped groove 821 extends towards the sliding part 72, and its center is offset from the rotation center of the swing part 82. Multiple connection points are formed at different positions along the length of the arc-shaped groove 821. In this embodiment, by providing an arc-shaped groove 821 on the swing plate and making its center offset from the rotation center of the swing plate, when it is necessary to perform fixed-point machining on the workpiece 100, it is only necessary to move the second end of the connecting rod assembly 73 along the arc-shaped groove 821 and fix it to different positions of the arc-shaped groove 821 to perform eccentric adjustment. Figure 7 and Figure 8 or Figure 9 and Figure 10As shown, when the connecting rod assembly 73 is connected to the lowermost end of the arc-shaped groove 821 (the end furthest from the sliding part 72 in the figure), symmetrical machining is performed. When the connecting rod assembly 73 is connected to the upper end of the arc-shaped groove 821 (the end closer to the sliding part 72 in the figure) and moves, eccentric motion is performed. The greater the movement, the greater the eccentric distance (the distance between the center of the arc-shaped groove and the rotation center of the swinging part). When the eccentric grinding area is large, the swing amplitude and eccentricity can be adjusted simultaneously. The arc-shaped groove 821 in this embodiment has a simple structure, is easy to adjust, and is more conducive to realizing stepless eccentric adjustment of the connecting rod assembly 73. In actual operation, the rotating disk 61 can be driven by a drive motor and a pulley mechanism. During installation, the sliding part 72 is installed on the rotating disk 61. The rotation of the rotating disk 61 can drive the sliding part 72 to rotate, which in turn can drive the connecting rod assembly 73 to drive the swinging part 82 and the cantilever 81 to swing.

[0082] As can be seen, when using the grinding and polishing machine tool in this embodiment, the corresponding requirements can be achieved by adjusting a set of mechanisms when the workpiece 100 has different sizes and when the workpiece 100 needs to be ground and polished at fixed points. This method is simple to operate, has strong mechanism reliability, and high work efficiency.

[0083] See Figures 11 to 14 As shown, the grinding and polishing device in this embodiment includes a positioning component 10, a grinding and polishing head 20, and a clamping component 30.

[0084] The positioning component 10 includes a positioning seat 11 and a positioning sleeve 12. The positioning seat 11 is fixedly installed on the end of the swing arm component 80, and the positioning sleeve 12 is fixedly installed on the positioning seat 11, with the axial direction of the positioning sleeve 12 perpendicular to the support platform 113. The polishing head 20 includes a support part 21, a driving component 22, a lead screw assembly 23, a guide rod 24, and a polishing disc 25. The guide rod 24 passes through the positioning sleeve 12 and can reciprocate along the axial direction of the positioning sleeve 12. The support part 21 is located at the top of the guide rod 24, and the polishing disc 25 is fixedly connected to the bottom of the guide rod 24. The driving component 22 is located on the support part 21, and the lead screw assembly 23 is connected to the positioning sleeve 12 and the driving component 25. Between components 22, the driving component 22 is used to drive the lead screw assembly 23 to extend and retract along the height direction of the positioning sleeve 12 to drive the guide rod 24 to reciprocate along the axial direction of the positioning sleeve 12; the clamping component 30 includes a driving mechanism 31 and a clamping mechanism 32. The driving mechanism 31 is mounted on the positioning seat 11, and the clamping mechanism 32 is disposed on the positioning sleeve 12 and connected to the driving mechanism 31. The clamping mechanism 32 has a locking position that clamps and fixes the guide rod 24 in the positioning sleeve 12 and an unlocking position that avoids the guide rod 24 so that the guide rod 24 can reciprocate along the axial direction of the positioning sleeve 12. The driving mechanism 31 is used to drive the clamping mechanism 32 to switch between the locking position and the unlocking position.

[0085] In actual installation, the grinding and polishing device in this embodiment is mounted on the end of the swing arm component 80 of the grinding and polishing machine tool via the positioning seat 11. When grinding and polishing plate-shaped structures such as plexiglass sheets are required, the cantilever is driven to a certain position by other control mechanisms. Then, the drive component 22 drives the lead screw assembly 23 to extend and retract, thereby driving the guide rod 24 to reciprocate along the axial direction of the positioning sleeve 12. When the drive component 22 drives the lead screw assembly 23 to a certain height, and then drives the grinding and polishing disc 25 to a predetermined position, the drive mechanism 31 drives the clamping mechanism 32 to clamp and fix the guide rod 24 in the positioning sleeve 12. After that, the plate-shaped structure such as plexiglass sheets located at the bottom of the grinding and polishing head 20 is moved by other mechanisms, and the swing of the cantilever is controlled to drive the swing of the grinding and polishing head 20 to perform grinding and polishing on the plexiglass sheets.

[0086] Because the grinding and polishing device in this embodiment is equipped with a clamping component 30, the guide rod 24 can be clamped and fixed in the positioning sleeve 12 during the grinding and polishing operation of the grinding and polishing head 20. During the grinding and polishing process, the lead screw assembly 23 bears relatively little weight and grinding force from the grinding and polishing head 20. Even after long-term use of the grinding and polishing device, the lead screw assembly 23 will not deform and can maintain its initial precision for a long time. When the driving component 22 drives the lead screw assembly 23 to extend and retract, the position of the grinding and polishing disc 25 can be precisely controlled, which can ensure the accuracy and stability of the vertical position of the grinding and polishing head 20. This ensures the flatness and thickness of the grinding and polishing device on plate-shaped structures such as plexiglass sheets, and guarantees the processing quality of the grinding and polishing device on plexiglass sheets, etc.

[0087] Specifically, in this embodiment, the support part 21 can be a support frame, support plate, or other structure. During actual installation, the support part 21 is fixedly installed on the top of the guide rod 24, and the driving component 22 is fixedly installed on the support part 21. The driving component 22 includes a drive motor. In actual use, the drive motor is connected to the reduction gearbox 26, and the lead screw assembly 23 is connected between the reduction gearbox 26 and the positioning sleeve 12. When the drive motor is working, it can drive the reduction gearbox 26 to move, which in turn can drive the lead screw assembly 23 to extend and retract, thereby driving the guide rod 24 to reciprocate along the axial direction of the positioning sleeve 12, ultimately achieving the purpose of adjusting the position of the polishing disc 25.

[0088] Optionally, the lead screw assembly 23 in this embodiment includes a lead screw and a nut. The nut is embedded in the positioning sleeve 12 and sleeved on the lead screw. The top end of the lead screw is connected to the reduction gearbox 26. When the reduction gearbox 26 rotates, it can drive the lead screw to extend and retract, thereby driving the guide rod 24 to reciprocate along the axis of the positioning sleeve 12. The structure is simple and easy to implement. In actual installation, the lead screw is located outside the positioning sleeve 12 for easy maintenance and installation.

[0089] When the height of the polishing disc 25 needs to be adjusted, the drive mechanism 31 drives the clamping mechanism 32 to switch to the unlocked position. Then, the drive component 22 drives the lead screw assembly 23 to move and adjust the height of the polishing disc 25 to the predetermined position. Then, the drive mechanism 31 drives the clamping mechanism 32 to switch to the locked position to clamp and lock the guide rod 24. After that, other mechanisms drive the plate-like structure such as the plexiglass plate located at the bottom of the polishing head 20 to move. At the same time, the cantilever swings and drives the polishing head 20 to swing, so as to grind and polish the plexiglass plate, etc.

[0090] To facilitate the installation of the clamping mechanism 32, a mounting hole 121 is provided on the side wall of the positioning sleeve 12 in this embodiment. The axial direction of the mounting hole 121 is perpendicular to the axial direction of the positioning sleeve 12, and the mounting hole 121 is connected to the internal space of the positioning sleeve 12. The clamping mechanism 32 includes a connector 321 and multiple locking blocks 322. The connector 321 passes through the mounting hole 121; the multiple locking blocks 322 are sequentially spaced on the connector 321. The driving mechanism 31 is connected to the connector 321 and drives the multiple locking blocks 322 to move closer together to clamp and lock the guide rod 24 in the positioning sleeve 12 and place it in the locked position.

[0091] In other words, when the drive mechanism 31 drives multiple locking blocks 322 to retract with each other, it can hold the guide rod 24 tightly, thereby locking and fixing the guide rod 24. The structure is simple, stable and reliable.

[0092] For example, in this embodiment, there are two locking blocks 322, which are spaced apart and sleeved on the connector 321. Each locking block 322 has an arc surface 3221 on the side near the guide rod 24 that matches the outer surface of the guide rod 24. In actual use, the locking block 322 engages with the surface of the guide rod 24 through the arc surface 3221, which does not easily cause wear to the guide rod 24 and can ensure the service life of the grinding and polishing device. Of course, in other embodiments of this application, the locking blocks 322 can also be set to three or more. Any other variations under the concept of this application are within the protection scope of this application.

[0093] In other embodiments of this application, an elastic pad or other structure may be provided on the inner side of the arc surface 3221, which can further reduce the wear of the locking block 322 on the guide rod 24, making the structure more stable and reliable.

[0094] Furthermore, in this embodiment, the connecting member 321 is a connecting rod, which passes through the mounting hole 121. At least one limiting nut 323 is fitted onto the end of the connecting rod furthest from the drive mechanism 31. The limiting nut 323 prevents the locking block 322 from falling off the connecting member 321. After installation, multiple locking blocks 322 are sequentially and spaced apart on the connecting rod, with the end of the connecting rod closest to the drive mechanism 31 connected to the drive mechanism 31. When the drive mechanism 31 moves, it can cause the locking blocks 322 on the connecting rod to retract towards the positioning sleeve 12, thereby locking the guide rod 24 tightly within the positioning sleeve 12. Optionally, the limiting nut 323 in this embodiment can be one, two, or more. The accompanying drawings of this embodiment show the case where there are two limiting nuts 323. By setting two limiting nuts 323, the locking block 322 can be effectively prevented from falling off the connecting rod.

[0095] See Figures 11 to 14 , Figure 17 and Figure 18 As shown, the drive mechanism 31 includes a drive cylinder 311 and a hinge rod 312. The drive cylinder 311 is mounted on the positioning seat 11 and extends and retracts along the axis perpendicular to the mounting hole 121. The first end of the hinge rod 312 is hinged to the extension rod of the drive cylinder 311, and the second end of the hinge rod 312 is hinged to the end of the connector 321 away from the limiting nut 323. The second end of the hinge rod 312 is provided with an arc block 3121. The hinge position of the second end of the hinge rod 312 and the connector 321 is offset from the center of the arc block 3121. Specifically, in this embodiment, the distance D between the hinge position of the hinge rod 312 and the connector 321 and the center of the arc block 3121 is D. The size of this distance D can be designed according to the required locking force of the guide rod 24, and is not specifically limited in this application. In actual use, when the drive cylinder 311 drives the hinge rod 312 to rotate, the arc block 3121 is used to push multiple locking blocks 322 to retract towards each other along the length of the connector 321 to hold and lock the guide rod 24.

[0096] Specifically, when the telescopic rod of the drive cylinder 311 extends, it can drive the first end of the hinge rod 312 to rotate, and at the same time pull the connector 321 and the locking block 322 connected to the side away from the drive cylinder 311 to move towards the side closer to the drive cylinder 311. At the same time, the second end of the hinge rod 312 rotates, and the arc block 3121 can push the locking block 322 on the connector 321 near the drive cylinder 311 to move towards the side away from the drive cylinder 311. At this time, the multiple locking blocks 322 on the connector 321 retract towards each other and hold the guide rod 24 tightly and lock it. The structure is simple, stable and reliable. Conversely, when the telescopic rod of the drive cylinder 311 retracts, it can drive the first end of the hinge rod 312 to rotate, and at the same time pull the connector 321 and the locking block 322 connected to the drive cylinder 311 away from the drive cylinder 311 to move towards the side away from the drive cylinder 311. At the same time, the second end of the hinge rod 312 rotates, and the arc block 3121 can move towards the direction away from the locking block 322. The multiple locking blocks 322 can move freely between each other, and the clamping mechanism 32 can switch from the locked position to the unlocked position, which facilitates the movement of the guide rod 24 within the positioning sleeve 12.

[0097] Optionally, both ends of the hinge rod 312 in this embodiment are provided with Y-shaped connectors. Through the function of the Y-shaped connectors, it is easy to connect the hinge rod 312 with the drive cylinder 311 and the connector 321, so that the structure is stable and reliable.

[0098] Furthermore, a stop washer 324 is fitted onto one end of the connecting rod near the hinge rod 312, and the arc block 3121 abuts against the stop washer 324. Through the action of the stop washer 324, the arc block 3121 can be prevented from directly abutting against the locking block 322. In actual design, the stop washer 324 can be made of a material with high hardness and not easy to wear, which can improve the service life and stability of the grinding and polishing device in this embodiment.

[0099] See Figures 11 to 15As shown, the positioning sleeve 12 in this embodiment is provided with an adjustment gap 122, which extends through the length of the positioning sleeve 12. An adjusting bolt 123 for adjusting the width of the adjustment gap 122 is also provided on the positioning sleeve 12. By providing an adjustment gap 122 on the positioning sleeve 12 and adjusting its width using the adjusting bolt 123, it is easier to install the guide rod 24 inside the positioning sleeve 12. Specifically, when it is necessary to install the guide rod 24 inside the positioning sleeve 12, the adjusting bolt 123 is used to widen the adjustment gap 122, making it easier to insert the guide rod 24 into the positioning sleeve 12. After installation, the adjusting bolt 123 is used to narrow the adjustment gap 122, making it easier for the locking blocks 322 to clamp and lock the guide rod 24 during the closing process. In actual installation, the adjusting bolt 123 is set perpendicular to the length of the adjustment gap 122, facilitating the adjustment of the width of the adjustment gap 122. Optionally, the adjusting bolt 123 can be one, or two or more.

[0100] See Figures 11 to 16 As shown, in this embodiment, a clearance groove 124 is provided on the side wall of the positioning sleeve 12. The clearance groove 124 extends along the length direction of the positioning sleeve 12. A displacement detection element 50 is provided on the guide rod 24. The displacement detection element 50 extends out of the positioning sleeve 12 from the clearance groove 124. In actual operation, the displacement detection element 50 facilitates the detection of the displacement of the guide rod 24 and makes it easier to control the lifting height of the guide rod 24. Optionally, the displacement detection element 50 can be a proximity switch or similar structure.

[0101] Furthermore, a roller 40 is provided on the guide rod 24. The roller 40 is rotatably installed in the clearance groove 124. The displacement detection element 50 is provided on the roller 40. By providing the roller 40, wear between the structure on which the displacement detection element 50 is installed and the clearance groove 124 can be prevented, and the structure is stable and reliable.

[0102] Based on the above structure, we can know that:

[0103] To ensure the long-term reliable operation of the lead screw assembly 23, this application designs a control mechanism in which the lead screw assembly 23 drives the grinding and polishing head 20 to move vertically, and the drive cylinder 311 controls the clamping mechanism 32 to clamp. This effectively avoids the long-term stress on the lead screw assembly 23, and the use of the drive cylinder 311 to control the clamping mechanism 32 makes control more convenient. By using the lead screw assembly 23 to drive the grinding and polishing head 20 to move vertically, and simultaneously using the drive cylinder 311 to control the clamping mechanism 32, this application ensures that during vertical machining, the vertical gravity of the grinding and polishing head 20 and the grinding and polishing force during the machining process are not transmitted to the lead screw assembly 23, thus guaranteeing the consistency of the lead screw assembly 23's machining accuracy over a long period.

[0104] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotation or other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0105] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this application.

[0106] The above are merely preferred embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A grinding and polishing machine tool, characterized in that, include: A workbench (110) includes a base (111), a slewing bearing (112), and a support platform (113). The slewing bearing (112) is rotatably mounted on the base (111), and the support platform (113) is fixedly mounted on the slewing bearing (112). The swing arm mechanism includes a support component (60), a drive component (70), and a swing arm component (80). The support component (60) is disposed on the outside of the worktable (110), and a rotating disk (61) is disposed on the support component (60). The drive component (70) includes a connecting rod assembly (73). The two ends of the connecting rod assembly (73) are rotatably connected to the rotating disk (61) and the swing arm component (80) respectively, and the connection position of the connecting rod assembly (73) and the rotating disk (61) is offset from the rotation center of the rotating disk (61). The swing arm component (80) is rotatably connected to the support component (60), and one end of the swing arm component (80) is suspended above the support platform (113). A grinding and polishing device is disposed on the swing arm component (80) and located above the support table (113) for grinding and polishing the workpiece (100) placed on the support table (113); The drive component (70) further includes: A drive unit (71) is mounted on the rotating disk (61); A sliding part (72) is mounted on the rotating disk (61), and the sliding direction of the sliding part (72) is consistent with the radial direction of the rotating disk (61). The first end of the connecting rod assembly (73) is slidably connected to the sliding part (72), and the first end of the connecting rod assembly (73) slides along the sliding part (72) under the drive of the driving part (71). The swing arm component (80) includes: A swing part (82) is provided with a first end rotatably mounted on the support member (60). The swing part (82) is provided with a plurality of connecting parts, and the plurality of connecting parts are at different distances from the rotation center of the swing part (82). The link assembly (73) is selectively rotatably connected to one of the plurality of connecting parts. A cantilever (81) is provided, one end of which is connected to the first end of the swing part (82), and the other end of which is suspended above the support platform (113). The grinding and polishing device is provided at the end of the cantilever (81) away from the swing part (82). The swing part (82) is a swing plate. An arc groove (821) is provided at one end of the swing plate away from the cantilever (81). The arc groove (821) extends toward the sliding part (72). The center of the arc groove (821) is offset from the rotation center of the swing part (82). Multiple connection parts are formed at different positions along the length of the arc groove (821). When the connecting rod assembly (73) is connected to the end of the arc groove (821) away from the sliding part (72), symmetrical processing is performed. When the connecting rod assembly (73) is connected to the end of the arc groove (821) that moves toward the sliding part (72), eccentric motion is performed.

2. The grinding and polishing machine tool according to claim 1, characterized in that, The sliding part (72) includes: A slide rail (721) is fixedly mounted on the rotating disk (61) and extends radially along the rotating disk (61); A lead screw (722) is rotatably mounted on the rotating disk (61) and extends along the length of the slide rail (721); Nut, which is fitted onto the lead screw (722); A slider (723) is slidably mounted on the slide rail (721) and fixedly connected to the nut, and the first end of the connecting rod assembly (73) is rotatably connected to the slider (723).

3. The grinding and polishing machine tool according to claim 1, characterized in that, The linkage assembly (73) includes: A first connecting rod (732) is provided with a connecting nut (7311) at its first end rotatably connected to the sliding part (72) at its second end. The second link (731) has its first end detachably connected to the second end of the first link (732) via the connecting nut (7311), and its second end is rotatably connected to the swing arm component (80).

4. The grinding and polishing machine tool according to any one of claims 1 to 3, characterized in that, The grinding and polishing apparatus includes: The positioning component (10) includes a positioning seat (11) and a positioning sleeve (12). The positioning seat (11) is fixedly installed on the end of the swing arm component (80), and the positioning sleeve (12) is fixedly installed on the positioning seat (11). The axial direction of the positioning sleeve (12) is perpendicular to the support platform (113). A polishing head (20) includes a support (21), a drive (22), a lead screw assembly (23), a guide rod (24), and a polishing disc (25). The guide rod (24) passes through the positioning sleeve (12) and can reciprocate along the axial direction of the positioning sleeve (12). The support (21) is located at the top of the guide rod (24), and the polishing disc (25) is fixedly connected to the bottom of the guide rod (24). The drive (22) is located on the support (21), and the lead screw assembly (23) is connected between the positioning sleeve (12) and the drive (22). The drive (22) is used to drive the lead screw assembly (23) to extend and retract along the height direction of the positioning sleeve (12) to drive the guide rod (24) to reciprocate along the axial direction of the positioning sleeve (12). A clamping component (30) includes a drive mechanism (31) and a clamping mechanism (32). The drive mechanism (31) is mounted on the positioning seat (11), and the clamping mechanism (32) is disposed on the positioning sleeve (12) and connected to the drive mechanism (31). The clamping mechanism (32) has a locking position that clamps and fixes the guide rod (24) in the positioning sleeve (12) and an unlocking position that avoids the guide rod (24) so ​​that the guide rod (24) can reciprocate along the axial direction of the positioning sleeve (12). The drive mechanism (31) is used to drive the clamping mechanism (32) to switch between the locking position and the unlocking position.

5. The grinding and polishing machine tool according to claim 4, characterized in that, The positioning sleeve (12) has a mounting hole (121) on its side wall. The axis of the mounting hole (121) is perpendicular to the axis of the positioning sleeve (12), and the mounting hole (121) communicates with the internal space of the positioning sleeve (12). The clamping mechanism (32) includes: A connector (321) is inserted into the mounting hole (121); Locking blocks (322), there are multiple locking blocks (322), and the multiple locking blocks (322) are sequentially spaced on the connector (321). The driving mechanism (31) is connected to the connector (321) and drives the multiple locking blocks (322) to move closer to each other to hold and lock the guide rod (24) in the positioning sleeve (12) and place it in the locked position.

6. The grinding and polishing machine tool according to claim 5, characterized in that, The connector (321) is a connecting rod, which passes through the mounting hole (121). At least one limiting nut (323) is sleeved on the end of the connecting rod away from the drive mechanism (31). Multiple locking blocks (322) are sequentially and spaced on the connecting rod. The end of the connecting rod near the drive mechanism (31) is connected to the drive mechanism (31).

7. The grinding and polishing machine tool according to claim 6, characterized in that, The drive mechanism (31) includes: A drive cylinder (311) is mounted on the positioning seat (11) and the drive cylinder (311) extends and retracts along an axis perpendicular to the mounting hole (121); A hinge rod (312) is provided, the first end of which is hinged to the telescopic rod of the drive cylinder (311), and the second end of which is hinged to the end of the connector (321) away from the limiting nut (323). The second end of the hinge rod (312) is provided with an arc block (3121), and the hinge position of the second end of the hinge rod (312) and the connector (321) is offset from the center of the arc block (3121). When the drive cylinder (311) drives the hinge rod (312) to rotate, the arc block (3121) is used to push multiple locking blocks (322) to retract towards each other along the length direction of the connector (321) to hold and lock the guide rod (24).

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