Polishing machine

Abstract

The utility model relates to a polishing machine which comprises a machine body, and a sample rotating mechanism, a longitudinal polishing mechanism and a transverse polishing mechanism which are arranged on the machine body, wherein the sample rotating mechanism is used for clamping and rotating a sample, and the sample rotating mechanism can move in the X-axis direction of the lathe bed; the longitudinal polishing mechanism is used for polishing the sample surface along the longitudinal direction of the sample; the transverse polishing mechanism is used for polishing the sample surface in the transverse direction of the sample; the longitudinal polishing mechanism and the transverse polishing mechanism can move in the direction close to or away from the sample rotating mechanism. According to the polishing machine, the longitudinal polishing mechanism and the transverse polishing mechanism can polish the surface of the sample in the longitudinal direction and the transverse direction of the sample respectively, lines generated during polishing are different, and different polishing mechanisms can be selected to polish the sample according to machining requirements; or the longitudinal polishing mechanism and the transverse polishing mechanism are used for polishing step by step, manpower consumption can be reduced, the polishing quality is improved, and the working efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of machining equipment technology, and more specifically, to a polishing machine. Background Technology

[0002] When determining the mechanical properties of materials, tensile specimens are required. Tensile specimens are mounted on a testing machine and tensile force is applied to them. The deformation and fracture of the material under different loads can be measured, thereby determining the mechanical property parameters of the material such as yield strength, tensile strength, and elongation.

[0003] Tensile specimens require polishing during processing. Generally, the polishing lines should run along the length of the specimen; that is, the polishing lines should not be concentric circles. Current methods for polishing tensile specimens typically involve manual hand-held electric polishing tools. This method cannot guarantee uniform polishing, and hand-held polishing is time-consuming and labor-intensive. Furthermore, the dust generated during polishing can easily harm the health of workers. Utility Model Content

[0004] In view of this, the purpose of this utility model is to provide a polishing machine that aims to solve the problems existing in the prior art.

[0005] According to this utility model, a polishing machine is provided, comprising: a bed, and a sample rotation mechanism, a longitudinal polishing mechanism, and a transverse polishing mechanism disposed on the bed; wherein,

[0006] The sample rotation mechanism includes a chuck and a chuck drive mechanism. The chuck is used to hold the sample, and the chuck drive mechanism is used to drive the chuck to rotate, thereby causing the sample to rotate. The sample rotation mechanism can move along the X-axis direction of the bed.

[0007] The longitudinal polishing mechanism includes a first polishing wheel and a first polishing wheel drive mechanism. The first polishing wheel drive mechanism is used to drive the first polishing wheel to rotate so as to polish the sample surface along the longitudinal direction of the sample.

[0008] The transverse polishing mechanism includes a second polishing wheel and a second polishing wheel drive mechanism. The second polishing wheel drive mechanism is used to drive the second polishing wheel to rotate so as to polish the sample surface in the transverse direction of the sample.

[0009] Both the longitudinal polishing mechanism and the transverse polishing mechanism can move in directions that are close to or far from the sample rotation mechanism.

[0010] Preferably, a slide table is slidably provided on the top of the bed along the X-axis direction of the bed, and a chuck seat is provided at one end of the slide table. The chuck and the chuck drive mechanism are both provided on the chuck seat, and the chuck drive mechanism is connected to the chuck in a transmission manner.

[0011] Preferably, the sample rotation mechanism further includes a center mechanism; wherein,

[0012] The centering mechanism is located at the other end of the slide table. The centering mechanism includes a centering seat and a pneumatic center mounted on the centering seat. The pneumatic center is used to press the sample firmly.

[0013] Preferably, a slide drive mechanism is provided between the slide and the bed; wherein,

[0014] The slide drive mechanism includes a lead screw, a lead screw nut, a lead screw drive motor, and a lead screw support base; the lead screw drive motor and the lead screw support base are both fixedly connected to the bed, one end of the lead screw is fixedly connected to the power output shaft of the lead screw drive motor, the other end of the lead screw is rotatably connected to the lead screw support base, and the lead screw nut is screwed onto the lead screw;

[0015] The lead screw nut is fixedly connected to the bottom of the slide table.

[0016] Preferably, the longitudinal polishing mechanism further includes a sliding support and a longitudinal polishing frame; wherein,

[0017] The sliding bracket is slidably disposed on the top of the bed along the Y-axis direction of the bed. The longitudinal polishing frame is fixed on the sliding bracket. The first polishing wheel and the first polishing wheel drive mechanism are both disposed on the longitudinal polishing frame. The first polishing wheel drive mechanism is connected to the first polishing wheel in a transmission manner. The rotation axis of the first polishing wheel is perpendicular to the rotation axis of the sample.

[0018] Preferably, two first drive cylinders are provided between the sliding bracket and the bed, and the two first drive cylinders are respectively provided on both sides of the sliding bracket. The cylinder barrel of the first drive cylinder is connected to the bed, and the telescopic rod of the first drive cylinder is connected to the sliding bracket.

[0019] Preferably, the transverse polishing mechanism further includes a fixed support and a transverse polishing frame; wherein,

[0020] The fixed bracket is fixed to the bed, and the transverse polishing frame is slidably mounted on the fixed bracket; the second polishing wheel and the second polishing wheel drive mechanism are both mounted on the transverse polishing frame, the second polishing wheel drive mechanism is connected to the second polishing wheel, and the rotation axis of the second polishing wheel is parallel to the rotation axis of the sample.

[0021] Preferably, the second polishing wheel drive mechanism includes a transverse polishing drive motor, a drive pulley, a synchronous belt, and a driven pulley; wherein,

[0022] The transverse polishing drive motor is fixedly connected to the rear end of the transverse polishing frame, the drive pulley is fixedly connected to the power output shaft of the transverse polishing drive motor, the driven pulley is rotatably connected to the front end of the transverse polishing frame, the synchronous belt is sleeved on the drive pulley and the driven pulley, and the second polishing wheel is connected to the driven pulley.

[0023] Preferably, a second drive cylinder is provided between the transverse polishing frame and the fixed support, the cylinder barrel of the second drive cylinder is connected to the fixed support, and the telescopic rod of the second drive cylinder is connected to the transverse polishing frame.

[0024] Preferably, the system also includes a dust removal pipe, the inlet end of which is provided with a dust removal hood, the dust removal hood being located above the sample rotation mechanism, and the outlet end of the dust removal pipe being connected to a dust collector.

[0025] The polishing machine provided by this utility model is equipped with a sample rotation mechanism, a longitudinal polishing mechanism, and a transverse polishing mechanism. When polishing a tensile sample, the sample rotation mechanism can rotate and move the sample, while the longitudinal and transverse polishing mechanisms can polish the sample surface along the longitudinal and transverse directions of the sample, respectively. Different textures are produced during polishing, and different polishing mechanisms can be selected to polish the sample according to processing needs. Alternatively, the longitudinal and transverse polishing mechanisms can be used to polish the sample in steps, which can reduce labor consumption, improve polishing quality, and increase work efficiency. Attached Figure Description

[0026] The above and other objects, features and advantages of the present invention will become clearer from the following description of embodiments of the present invention with reference to the accompanying drawings.

[0027] Figure 1 A three-dimensional structural schematic diagram of a polishing machine according to an embodiment of the present invention is shown.

[0028] Figure 2 A three-dimensional structural diagram of the polishing machine according to an embodiment of the present invention is shown after concealing the housing and support frame.

[0029] Figure 3 A side view of the polishing machine according to an embodiment of the present invention is shown. The machine housing and support frame are hidden.

[0030] Figure 4 A schematic diagram of the slide drive mechanism in a polishing machine according to an embodiment of the present invention is shown.

[0031] Figure 5 A three-dimensional structural schematic diagram of the transverse polishing mechanism in a polishing machine according to an embodiment of the present invention is shown.

[0032] Figure 6 A schematic diagram of the transverse polishing mechanism in a polishing machine according to an embodiment of the present invention is shown.

[0033] In the diagram: 1. Bed; 11. Platform plate; 12. Support frame; 2. Sample rotation mechanism; 21. First slide rail; 22. Slide table; 23. Chuck; 24. Chuck drive mechanism; 25. Chuck seat; 26. Pneumatic center; 27. Center seat; 28. Slide table drive mechanism; 281. Transmission screw; 282. Screw nut; 283. Screw drive motor; 284. Screw support seat; 3. Longitudinal polishing mechanism; 31. Sliding bracket; 32. First slide rail; 23. Screw drive mechanism; 24. Platform plate; 25. Support frame; 26. Sample rotation mechanism; 27. First slide rail; 28. Slide table; 281. First slide rail; 282. Screw drive mechanism; 283. First slide rail; 284. Screw drive mechanism; 285. First slide rail; 286. Second slide rail; 287. First slide rail; 288. Screw drive mechanism; 289. First slide rail; 280. Second slide rail; 281. First slide rail; 282. First slide rail; 283. First slide rail; 284. Second slide rail; 285. First slide rail; 286. Second slide rail; 287. First slide rail; 288. Second slide rail; 289. Second slide rail; 280. Second slide rail; 281. First slide rail; 282. Second slide rail; 283. First slide rail; 284. Second slide rail; 285. Second slide rail; 286. Second slide rail; 287. Second slide rail; 288. Second slide rail; 289. Second slide rail; 280. Third slide rail; 281. Second slide rail; 282. Second slide rail; 28 33. First drive cylinder; 34. Longitudinal polishing frame; 35. First polishing wheel; 36. First polishing wheel drive mechanism; 4. Transverse polishing mechanism; 41. Fixed bracket; 42. Transverse polishing frame; 43. Second drive cylinder; 44. Second polishing wheel; 45. Second polishing wheel drive mechanism; 451. Transverse polishing drive motor; 452. Drive pulley; 453. Synchronous belt; 5. Dust removal pipe; 6. Machine housing; 7. Tensile specimen. Detailed Implementation

[0034] Various embodiments of the present invention will now be described in more detail with reference to the accompanying drawings. In the various drawings, the same elements are indicated by the same or similar reference numerals. For clarity, the various parts in the drawings are not drawn to scale.

[0035] This utility model provides a polishing machine, see [link]. Figures 1 to 3 The polishing machine includes: a bed 1, and a sample rotation mechanism 2, a longitudinal polishing mechanism 3, and a transverse polishing mechanism 4 disposed on the bed 1; wherein, the sample rotation mechanism 2 includes a chuck 23 and a chuck drive mechanism 24, the chuck 23 is used to hold the sample, and the chuck drive mechanism 24 is used to drive the chuck 23 to rotate, thereby driving the sample to rotate; the sample rotation mechanism 2 can move along the X-axis direction of the bed 1; the longitudinal polishing mechanism 3 includes a first polishing wheel 35 and a first polishing wheel drive mechanism 36, the first polishing wheel drive mechanism 36 is used to drive the first polishing wheel 35 to rotate, so as to polish the sample surface along the longitudinal direction of the sample; the transverse polishing mechanism 4 includes a second polishing wheel 44 and a second polishing wheel drive mechanism 45, the second polishing wheel drive mechanism 45 is used to drive the second polishing wheel 44 to rotate, so as to polish the sample surface along the transverse direction of the sample; both the longitudinal polishing mechanism 3 and the transverse polishing mechanism 4 can move in a direction close to or away from the sample rotation mechanism 2.

[0036] Specifically, see Figure 1The bed frame 1 includes a support frame 12 and a platform plate 11 disposed on top of the support frame 12. The support frame 12 is welded from structural steel and includes four legs and a top rectangular frame. The four legs are used to support the bed on the ground. The platform plate 11 is made of steel plate of a certain thickness and is rectangular in shape, disposed on the top frame. The length direction of the platform plate 11 is the X-axis direction of the bed frame 1, the width direction of the platform plate 11 is the Y-axis direction of the bed frame 1, and the height direction of the platform plate 11 is the Z-axis direction of the bed frame 1. The polishing machine clamps and rotates the tensile specimen 7 via a rotary drive mechanism. The first polishing wheel 35 of the longitudinal polishing mechanism 3 polishes the specimen surface along the longitudinal direction (the direction of the specimen axis), and the second polishing wheel 44 of the transverse polishing mechanism 4 polishes the specimen surface along the transverse direction (perpendicular to the specimen axis). That is, the rotation axis of the first polishing wheel 35 and the rotation axis of the second polishing wheel 44 are set at 90 degrees to generate textures in different directions during specimen polishing. One of the polishing wheels can be selected to polish the specimen as needed. Since both the longitudinal polishing mechanism 3 and the transverse polishing mechanism 4 can move towards or away from the specimen rotation mechanism 2, one of them can be selected to approach the specimen rotation mechanism 2 during polishing to polish the tensile specimen 7 on the specimen rotation mechanism 2. During the specimen polishing process, the specimen rotation mechanism 2 can move along the X-axis of the bed 1, thus enabling polishing of the entire length of the specimen. A housing 6 is also mounted on the platform plate 11. Both the longitudinal polishing mechanism 3 and the transverse polishing mechanism 4 are housed within the housing 6. An opening is provided on the front side of the housing 6, and a sample rotation mechanism 2 is mounted on the platform plate 11 in front of the opening. When polishing of the tensile sample 7 on the sample rotation mechanism 2 is required, the first polishing wheel 35 at the front end of the longitudinal polishing mechanism 3 or the second polishing wheel 44 at the front end of the transverse polishing mechanism 4 moves from the opening on the front side of the housing 6 onto the sample to polish it. A touchscreen is also mounted on the housing 6, connected to the control unit of the polishing machine. The through-hole touchscreen allows input of processing parameters during polishing, facilitating sample polishing.

[0037] See Figure 1 and Figure 2A slide table 22 is slidably mounted on the top of the bed 1 along the X-axis direction. A chuck seat 25 is mounted at one end of the slide table 22. The chuck 23 and the chuck drive mechanism 24 are both mounted on the chuck seat 25, and the chuck drive mechanism 24 is drively connected to the chuck 23. In this embodiment, the chuck 23 is a pneumatic chuck. The sample rotation mechanism 2 also includes a center mechanism; wherein the center mechanism is located at the other end of the slide table 22, and the center mechanism includes a center seat 27 and a pneumatic center 26 mounted on the center seat 27. The pneumatic center 26 is used to clamp the sample. By setting the center mechanism, the end of a long sample can be clamped, preventing the sample from bending and deforming during polishing. Specifically, in this embodiment, two first slide rails 21 are spaced apart on the platform plate 11, extending along the X-axis of the bed 1. The bottom of the slide table 22 has first grooves matching the two first slide rails 21. The slide table 22 is slidably connected to the two first slide rails 21 via the two first grooves, allowing it to move along the X-axis of the bed 1. The chuck drive mechanism 24 includes a spindle box and a chuck drive servo motor. The power output end of the chuck drive servo motor is connected to the power input end of the spindle box, and the power output end of the spindle box is connected to the chuck 23. The chuck drive servo motor can adjust the rotation speed of the sample according to processing requirements. The polishing contact portions of the first polishing wheel 35 and the second polishing wheel 44 are both composed of flexible polishing wires. The polishing wires have a certain degree of toughness, allowing them to press against the sample during polishing and make contact with it for polishing.

[0038] Furthermore, a slide drive mechanism 28 is provided between the slide table 22 and the bed 1; wherein, the slide drive mechanism 28 includes a transmission screw 281, a screw nut 282, a screw drive motor 283, and a screw support 284; the screw drive motor 283 and the screw support 284 are both fixedly connected to the bed 1, one end of the transmission screw 281 is fixedly connected to the power output shaft of the screw drive motor 283, and the other end of the transmission screw 281 is rotatably connected to the screw support 284, and the screw nut 282 is screwed onto the transmission screw 281; the screw nut 282 is fixedly connected to the bottom of the slide table 22. The screw drive motor 283 can drive the transmission screw 281 to rotate, and the rotation of the transmission screw 281 can drive the screw nut 282 to move linearly along the axial direction of the transmission screw 281, thereby driving the slide table 22 connected to the screw nut 282 to move. See also Figure 4In this embodiment, the slide drive mechanism 28 is disposed between the two first slide rails 21, and an installation space for the slide drive mechanism 28 is left between the slide 22 and the platform plate 11, thereby making the overall structure of the sample rotation mechanism 2 more compact. In this embodiment, the lead screw drive motor 283 is a servo motor, which can adjust the rotation speed of the transmission lead screw 281 according to the processing requirements, thereby adjusting the movement speed of the sample along the X-axis direction of the bed 1.

[0039] See Figure 2 The longitudinal polishing mechanism 3 further includes a sliding bracket 31 and a longitudinal polishing frame 34. The sliding bracket 31 is slidably mounted on the top of the bed 1 along the Y-axis direction. The longitudinal polishing frame 34 is fixed to the sliding bracket 31. The first polishing wheel 35 and the first polishing wheel drive mechanism 36 are both mounted on the longitudinal polishing frame 34. The first polishing wheel drive mechanism 36 is drively connected to the first polishing wheel 35, and the rotation axis of the first polishing wheel 35 is perpendicular to the rotation axis of the sample. Specifically, two second slide rails 32 are spaced apart on the platform plate 11, extending along the Y-axis direction of the bed 1. The sliding bracket 31 includes a top plate, a bottom plate, and multiple connecting columns connecting the top plate and the bottom plate. The bottom of the bottom plate has second sliding grooves that match the two second slide rails 32. The sliding bracket 31 is slidably connected to the two second slide rails 32 via the two second sliding grooves, thereby enabling the sliding bracket 31 to move along the Y-axis direction of the bed 1. The longitudinal polishing frame 34 is mounted on top of the sliding support 31, allowing the first polishing wheel 35 connected to the longitudinal polishing frame 34 to be positioned above the tensile specimen 7 held by the chuck 23 on the specimen rotation mechanism 2, thus polishing the tensile specimen 7 in the longitudinal direction above it. Specifically, the first polishing wheel drive mechanism 36 includes a longitudinal polishing drive motor, a drive wheel, a transmission belt, a driven wheel, and a transmission shaft. The transmission shaft is rotatably mounted in the longitudinal polishing frame 34. The first polishing wheel 35 is fixedly connected to the first end of the transmission shaft, and the driven wheel is fixedly connected to the second end. The longitudinal polishing drive motor is mounted on the longitudinal polishing frame 34, and the drive wheel is fixedly connected to the power output shaft of the longitudinal polishing drive motor. The transmission belt is sleeved on the drive wheel and the driven wheel. The longitudinal polishing drive motor drives the drive wheel to rotate, which, through the transmission belt, drives the driven wheel and the transmission shaft to rotate, thereby driving the first polishing wheel 35 connected to the transmission shaft to rotate, thus polishing the specimen.

[0040] In this embodiment, two first drive cylinders 33 are arranged between the sliding bracket 31 and the bed 1. The two first drive cylinders 33 are respectively arranged on both sides of the sliding bracket 31. The cylinder barrel of the first drive cylinder 33 is connected to the bed 1, and the telescopic rod of the first drive cylinder 33 is connected to the sliding bracket 31. By arranging the first drive cylinders 33 between the sliding bracket 31 and the bed 1, when the telescopic rod of the first drive cylinder 33 extends, it can push the sliding bracket 31 to move closer to the sample rotation mechanism 2, so that the first polishing wheel 35 can polish the sample; when the telescopic rod of the first drive cylinder 33 retracts, it can pull the sliding bracket 31 to move away from the sample rotation mechanism 2, so that the first polishing wheel 35 leaves the sample.

[0041] See Figure 3 , Figure 5 and Figure 6The transverse polishing mechanism 4 further includes a fixed bracket 41 and a transverse polishing frame 42; wherein, the fixed bracket 41 is fixedly mounted on the bed 1, and the transverse polishing frame 42 is slidably mounted on the fixed bracket 41; the second polishing wheel 44 and the second polishing wheel drive mechanism 45 are both mounted on the transverse polishing frame 42, the second polishing wheel drive mechanism 45 is connected to the second polishing wheel 44 in a transmission manner, and the rotation axis of the second polishing wheel 44 is parallel to the rotation axis of the sample. Specifically, in this embodiment, the transverse polishing mechanism 4 is located below the longitudinal polishing mechanism 3, and the second polishing wheel 44 of the transverse polishing mechanism 4 can be located below the tensile sample 7 held by the chuck 23 on the sample rotation mechanism 2, and the tensile sample 7 is polished in the transverse direction below the tensile sample 7. Specifically, in this embodiment, a rectangular hole is provided on the platform plate 11, the fixed bracket 41 passes obliquely through the rectangular hole on the platform plate 11 and is fixedly connected to the platform plate 11, and the transverse polishing frame 42 is slidably connected to the obliquely mounted fixed bracket 41. When the second polishing wheel 44 is needed to perform transverse polishing on the sample, the transverse polishing frame 42 moves upward along the fixed support 41 at an angle. When the second polishing wheel 44 completes the transverse polishing of the sample, the transverse polishing frame 42 moves downward along the fixed support 41 at an angle, thereby causing the second polishing wheel 44 to leave the sample. In this embodiment, the second polishing wheel drive mechanism 45 includes a transverse polishing drive motor 451, a drive pulley 452, a timing belt 453, and a driven pulley. The transverse polishing drive motor 451 is fixedly connected to the rear end of the transverse polishing frame 42, the drive pulley 452 is fixedly connected to the power output shaft of the transverse polishing drive motor 451, the driven pulley is rotatably connected to the front end of the transverse polishing frame 42, the timing belt 453 is sleeved on the drive pulley 452 and the driven pulley, and the second polishing wheel 44 is connected to the driven pulley. The transverse polishing drive motor 451 drives the active pulley 452 to rotate, and through the transmission action of the synchronous belt 453, drives the driven pulley to rotate, which in turn drives the second polishing wheel 44 connected to the driven pulley to rotate, so as to polish the sample.

[0042] See Figure 5 and Figure 6In this embodiment, a second driving cylinder 43 is provided between the transverse polishing frame 42 and the fixed support 41. The cylinder barrel of the second driving cylinder 43 is connected to the fixed support 41, and the telescopic rod of the second driving cylinder 43 is connected to the transverse polishing frame 42. By providing the second driving cylinder 43 between the transverse polishing frame 42 and the fixed support 41, the extension of the telescopic rod of the second driving cylinder 43 can push the transverse polishing frame 42 to move closer to the sample rotation mechanism 2, thereby enabling the second polishing wheel 44 to polish the sample; the retraction of the telescopic rod of the second driving cylinder 43 can pull the transverse polishing frame 42 to move away from the sample rotation mechanism 2, thereby causing the second polishing wheel 44 to leave the sample.

[0043] Furthermore, the polishing machine also includes a dust removal pipe 5, with a dust removal hood at the inlet end of the dust removal pipe 5, located above the sample rotation mechanism 2, and the outlet end of the dust removal pipe 5 connected to a dust collector. By setting up the dust removal pipe 5, the dust generated during sample polishing can be removed through the dust removal pipe 5, thereby preventing the dust generated during polishing from being dispersed in the air and causing harm to the health of the workers.

[0044] In summary, the polishing machine provided by this utility model is equipped with a sample rotation mechanism, a longitudinal polishing mechanism, and a transverse polishing mechanism. When polishing a tensile sample, the sample rotation mechanism can rotate and move the sample, while the longitudinal and transverse polishing mechanisms can polish the sample surface along the longitudinal and transverse directions of the sample, respectively. Different textures are produced during polishing, and different polishing mechanisms can be selected to polish the sample according to processing needs. Alternatively, the longitudinal and transverse polishing mechanisms can be used for step-by-step polishing, which can reduce labor consumption, improve polishing quality, and increase work efficiency.

[0045] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0046] Finally, it should be noted that the above embodiments are merely examples for clearly illustrating the present invention and are not intended to limit the implementation. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A polishing machine characterized by, The polishing machine comprises: a bed body, and a sample rotating mechanism, a longitudinal polishing mechanism and a transverse polishing mechanism arranged on the bed body; wherein, the sample rotating mechanism comprises a chuck for clamping a sample and a chuck driving mechanism for driving the chuck to rotate and in turn drive the sample to rotate; the sample rotating mechanism is movable along the X-axis direction of the bed body; the longitudinal polishing mechanism comprises a first polishing wheel and a first polishing wheel driving mechanism for driving the first polishing wheel to rotate to polish the surface of the sample in the longitudinal direction of the sample; the transverse polishing mechanism comprises a second polishing wheel and a second polishing wheel driving mechanism for driving the second polishing wheel to rotate to polish the surface of the sample in the transverse direction of the sample; the longitudinal polishing mechanism and the transverse polishing mechanism are both movable in the direction of approaching or moving away from the sample rotating mechanism.

2. The polisher of claim 1, wherein The top of the bed body is provided with a sliding table in the X-axis direction of the bed body, one end of the sliding table is provided with a chuck seat, the chuck and the chuck driving mechanism are arranged on the chuck seat, and the chuck driving mechanism is in transmission connection with the chuck.

3. The polisher of claim 2, wherein, The sample rotating mechanism further comprises a center mechanism; wherein, the center mechanism is arranged at the other end of the sliding table, and comprises a center seat and a pneumatic center arranged on the center seat, and the pneumatic center is used for centering the sample.

4. The polisher of claim 2, wherein, The sliding table and the bed body are provided with a sliding table driving mechanism; wherein, the sliding table driving mechanism comprises a transmission screw rod, a screw nut, a screw rod driving motor and a screw rod support seat; the screw rod driving motor and the screw rod support seat are fixedly connected to the bed body, one end of the transmission screw rod is fixedly connected to the power output shaft of the screw rod driving motor, the other end of the transmission screw rod is rotatably connected to the screw rod support seat, and the screw nut is screwed on the transmission screw rod; the screw nut is fixedly connected to the bottom of the sliding table.

5. The polisher of claim 1, wherein, The longitudinal polishing mechanism further comprises a sliding support and a longitudinal polishing rack; wherein, the sliding support is arranged on the top of the bed body in the Y-axis direction of the bed body, the longitudinal polishing rack is fixedly arranged on the sliding support, the first polishing wheel and the first polishing wheel driving mechanism are arranged on the longitudinal polishing rack, the first polishing wheel driving mechanism is in transmission connection with the first polishing wheel, and the rotation axis of the first polishing wheel is perpendicular to the rotation axis of the sample.

6. The polishing machine of claim 5, wherein, Two first driving air cylinders are arranged between the sliding support and the bed body, the cylinder barrels of the two first driving air cylinders are connected to the bed body, and the telescopic rods of the two first driving air cylinders are connected to the sliding support.

7. The polisher of claim 1, wherein The transverse polishing mechanism further comprises a fixed support and a transverse polishing rack; wherein, the fixed support is fixedly arranged on the bed body, and the transverse polishing rack is slidingly arranged on the fixed support; the second polishing wheel and the second polishing wheel driving mechanism are arranged on the transverse polishing rack, the second polishing wheel driving mechanism is in transmission connection with the second polishing wheel, and the rotation axis of the second polishing wheel is parallel to the rotation axis of the sample.

8. The polishing machine of claim 7, wherein, The second polishing wheel driving mechanism comprises a transverse polishing driving motor, a driving pulley, a synchronous belt and a driven pulley. The transverse polishing driving motor is fixedly connected to the rear end of the transverse polishing rack, the driving pulley is fixedly connected to the power output shaft of the transverse polishing driving motor, the driven pulley is rotatably connected to the front end of the transverse polishing rack, the synchronous belt is sleeved on the driving pulley and the driven pulley, and the second polishing wheel is connected to the driven pulley.

9. The polishing machine of claim 7, wherein, A second driving cylinder is arranged between the transverse polishing rack and the fixed support, the cylinder barrel of the second driving cylinder is connected to the fixed support, and the telescopic rod of the second driving cylinder is connected to the transverse polishing rack.

10. The polisher of claim 1, wherein, A dust removal pipeline is further arranged, the inlet end of the dust removal pipeline is provided with a dust removal cover, the dust removal cover is located above the sample rotating mechanism, and the outlet end of the dust removal pipeline is connected with a dust removal machine.

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