Metallographic specimen cutting device for steel

Abstract

The invention discloses a metallographic specimen cutting device for steel, and relates to the technical field of cutting devices.The metallographic specimen cutting device comprises a sampling main box body, a protective cover is hinged to the sampling main box body, a cutting power assembly is arranged on the sampling main box body, and a connecting shaft is fixedly installed at the side end of the cutting power assembly through an output shaft; a connecting shaft is arranged on the sampling main box body, a cutting blade is arranged on the connecting shaft, a fixed platform is arranged on the sampling main box body, a rotary adjusting plate is arranged to be of a rotatable structure, the rotary adjusting plate is rotationally installed on the fixed platform through a rotating rod and a bearing, and a positioning screw rod is arranged in an formed arc-shaped groove, so that a metal block can be cut in different directions; when the texture, anisotropy and other special properties of a material need to be researched, a positioning screw rod is loosened, a rotary adjusting plate is rotated, a first positioning plate, a U-shaped connecting frame and a second positioning plate are driven to rotate, the positioning screw rod is locked after the positioning screw rod is adjusted to a proper angle, and therefore the metal block can be fixed at different angles, and various detection requirements are met.

Description

Technical Field

[0001] The present invention relates to the technical field of cutting devices, and particularly to a metallographic specimen cutting device for steel. Background Art

[0002] A metallographic specimen cutting device is a key equipment in material research, which is used to obtain specimens with specific sizes and shapes from raw materials for preparation of metallographic analysis. It separates materials through cutting tools such as grinding wheels and saw blades driven by power. During the cutting process, cutting parameters and cooling conditions need to be precisely controlled. This device ensures that the cut specimens maintain their original organizational structures, providing a basis for subsequent observation of microstructures through a metallographic microscope and research on material properties; Currently, for the metallographic specimen cutting device for steel, at least the following technical problems are found: First, during the cutting of steel metallographic specimens, traditional cutting devices are difficult to meet the requirements for studying the special properties of materials. For example, when it is necessary to study properties such as the texture and anisotropy of steel, existing cutting devices cannot cut specimens at multiple angles. Their fixing structures are usually relatively single and cannot flexibly adjust the cutting angle, resulting in a lack of effective sample support when analyzing these special properties of steel and limiting the in-depth study of the relationship between the microstructure and properties of steel.

[0003] Second, there are defects in the cooling water treatment method during the cutting process of existing steel metallographic specimen cutting devices. The cooling water splashes everywhere during the cutting process, is easy to accumulate inside the device, and after metal chips accumulate inside the device, it is easy to corrode the device components, shorten the service life of the device, and may also affect the normal operation of the device. Summary of the Invention

[0004] In order to solve the above technical problems, the present invention provides a metallographic specimen cutting device for steel to solve the above problems.

[0005] A metallographic specimen cutting device for steel, comprising a main sampling box body, on which a protective cover is hinged. A cutting power assembly is provided on the main sampling box body. A connecting shaft is fixedly installed at the side end of the cutting power assembly through an output shaft, and a cutting blade is provided on the connecting shaft. A fixed platform is provided on the main sampling box body, and a manual clamping mechanism and an automatic clamping mechanism are provided on the fixed platform. A cleaning mechanism is provided inside the main sampling box body. A manual operating rod is provided between the cutting power assembly and the main sampling box body, and a third straight gear is provided on the manual operating rod. The automatic clamping mechanism includes a first fixed seat, on which a movable ejector rod is slidably installed through. A moving rack is fixedly installed at the end of the movable ejector rod away from the manual operating rod, and a first clamping plate is provided at the end of the movable ejector rod close to the manual operating rod. The third straight gear is meshed with the moving rack. The cleaning mechanism includes a cooling water collection box, and a detachable metal microporous filter screen is provided on the circumferential inner wall of the cooling water collection box. Three rotatable centrifugal flapper plates are provided on the cooling water collection box. A rotating shaft is provided on the cooling water collection box, and a second straight gear is fixedly installed on the rotating shaft. A first gear synchronous belt is meshed with the second straight gear, a first combined tooth is meshed with the inner wall of the first gear synchronous belt, a second combined tooth is meshed with the first combined tooth, a second gear synchronous belt is meshed with the second combined tooth, and a first straight gear is meshed with the inner wall of the second gear synchronous belt. The first straight gear is fixedly installed on the connecting shaft. The manual clamping mechanism includes a second fixed seat, on which a locking screw is installed through by thread. An adjustable clamping plate assembly is provided on the fixed platform. The clamping plate assembly includes a rotating adjustment plate, which is rotatably installed on the fixed platform through a rotating rod and a bearing. An arc-shaped groove is opened on the rotating adjustment plate, and a positioning screw is provided in the opened arc-shaped groove.

[0006] Preferably, a cutting groove is opened on the main sampling box body, and the cutting blade is vertically aligned with the cutting groove opened on the main sampling box body. Two limit blocks are fixedly installed on the movable ejector rod, and a connecting plate is slidably installed through the movable ejector rod. A compression spring is provided between the limit block and the connecting plate. Two first guide rods are fixedly installed on the connecting plate, and the first clamping plate is rotatably connected with the two first guide rods. The cooling water collection box is located inside the main sampling box body, and a connecting pipe is fixedly installed at the side end of the main sampling box body, and the connecting pipe is connected with the cooling water collection box.

[0007] Preferably, the three centrifugal flapper plates are all fixedly installed on the rotating shaft at equal circumferential intervals. Both the first combined tooth and the second combined tooth are formed by welding a bevel gear and a flat gear, and both the first combined tooth and the second combined tooth are rotatably installed inside the main sampling box body through bearing limits.

[0008] Preferably, two second guide rods are rotatably installed through the side end of the locking screw rod by bearings, and a second clamping plate is rotatably installed at the side ends of the two second guide rods. A first positioning plate is fixedly installed on the rotary adjusting plate, a U-shaped connecting frame is fixedly installed on the first positioning plate, a second positioning plate is fixedly installed on the U-shaped connecting frame, the first positioning plate corresponds to the second clamping plate, and the second positioning plate corresponds to the first clamping plate.

[0009] Compared with the prior art, the present invention has the following beneficial effects: In the present invention, by setting the rotary adjusting plate as a rotatable structure, it is rotatably installed on the fixed platform through a rotating rod and a bearing, and a positioning screw rod is provided in the opened arc-shaped groove, so that the metal block can be cut in different directions. When it is necessary to study special properties such as the texture and anisotropy of the material, loosen the positioning screw rod and rotate the rotary adjusting plate, drive the first positioning plate, U-shaped connecting frame and second positioning plate to rotate, and lock the positioning screw rod after adjusting to a suitable angle, then it can adapt to the fixation of the metal block at different angles and meet various detection requirements.

[0010] In the present invention, by meshing the moving rack of the automatic clamping mechanism with the third straight gear, when rotating the manual operating rod to drive the cutting power assembly and the cutting blade to rotate and cut the metal block, the third straight gear on the manual operating rod rotates synchronously, and then drives the moving rack, the movable ejector rod, the connecting plate and the first guide rod to move, so that the first clamping plate fits on the metal block. At the same time, the compression spring arranged between the movable ejector rod and the connecting plate can continuously fix one end of the metal block for sampling during the cutting process as the cutting depth changes, avoiding the movement of the sampling end of the metal block. Moreover, after cutting is completed, under the action of the third straight gear and the moving rack, it is convenient to quickly take out the sampling end for protection and facilitate disassembly.

[0011] In the present invention, through the connection of a series of gears such as the first straight gear, the second gear synchronous belt, the second combined tooth, the first combined tooth, the first gear synchronous belt and the second straight gear, when the cutting blade rotates during cutting, the connecting shaft drives the first straight gear to rotate, and then drives the second gear synchronous belt, the second combined tooth, the first combined tooth, the first gear synchronous belt and the second straight gear to rotate in sequence, and finally drives the centrifugal slinger on the cooling water collection box to rotate. The centrifugal slinger throws the cooling water splashed during cutting towards the metal microporous filter screen, realizing the collection of the cooling water for cutting and avoiding the accumulation of cooling water in the equipment.

[0012] In the present invention, by providing a detachable metal microporous filter screen on the circumferential inner wall of the cooling water collection tank, when the centrifugal throwing plate throws the cooling water towards the metal microporous filter screen, the metal microporous filter screen can filter the cutting debris in the cooling water. The filtered cooling water falls into the interior of the cooling water collection tank and then flows back to the tank where the water pump pumps water through a connecting pipe for secondary utilization, improving the utilization rate of water resources.

[0013] In the present invention, through the interconnection and interaction of various structures such as the manual clamping mechanism, the automatic clamping mechanism, the cleaning mechanism, and the cutting power assembly, a series of functions are realized, including multi-angle fixing of the metal block, stable clamping during the cutting process, cleaning of cutting debris, and recycling of cooling water. This improves the efficiency and quality of metallographic specimen cutting, meets different detection requirements, reduces the risk of equipment failure, extends the service life of the equipment, and enhances the overall practicality and reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is the overall structure diagram of the present invention; Figure 2 is the structure diagram of the fixed platform of the present invention; Figure 3 is the structure diagram of the manual operating rod of the present invention; Figure 4 is the structure diagram of the metal microporous filter screen of the present invention; Figure 5 is the structure diagram of the cooling water collection tank of the present invention; Figure 6 is the structure diagram of the connecting shaft of the present invention; Figure 7 of the present invention Figure 4 is the enlarged view of the structure at location A; Figure 8 of the present invention Figure 2 is the enlarged view of the structure at location B; Figure 9 is the structure diagram of the movable ejector rod of the present invention.

[0015] In the figure, the corresponding relationship between the component names and the attached drawing numbers is as follows: 11, the first combined tooth; 12, the first gear synchronous belt; 14, the second combined tooth; 15, the second gear synchronous belt; 21, the cutting power assembly; 22, the connecting shaft; 23, the first straight gear; 24, the cutting blade; 25, the manual operating rod; 26, the third straight gear; 31, the sampling main box body; 32, the protective cover; 33, the fixed platform; 34, the cutting groove; 41, the cooling water collection box; 42, the second straight gear; 43, the rotating shaft; 44, the centrifugal throwing plate; 45, the metal microporous filter screen; 46, the connecting pipe; 51, the movable ejector rod; 52, the limiting block; 53, the compression spring; 54, the connecting plate; 55, the first guide rod; 56, the first clamping plate; 57, the moving rack; 59, the first fixed seat; 61, the second fixed seat; 62, the second clamping plate; 63, the locking screw; 64, the second guide rod; 65, the first positioning plate; 66, the rotating adjustment plate; 67, the U-shaped connecting frame; 68, the second positioning plate. Specific implementation manners

[0016] The following further describes in detail the implementation manners of the present invention in conjunction with the attached drawings and embodiments. The following embodiments are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0017] Please refer to Figure 1 - Figure 9, the present invention provides a metallographic specimen cutting device for steel, which includes a sampling main box body 31, a protective cover 32 is hinged on the sampling main box body 31, a cutting power assembly 21 is arranged on the sampling main box body 31, a connecting shaft 22 is fixedly installed on the side end of the cutting power assembly 21 through an output shaft, a cutting blade 24 is arranged on the connecting shaft 22, a fixed platform 33 is arranged on the sampling main box body 31, a manual clamping mechanism and an automatic clamping mechanism are arranged on the fixed platform 33, a cleaning mechanism is arranged inside the sampling main box body 31, a manual operating rod 25 is arranged between the cutting power assembly 21 and the sampling main box body 31, a third straight gear 26 is arranged on the manual operating rod 25, the automatic clamping mechanism includes a first fixed seat 59, a movable ejector rod 51 is slidably installed through the first fixed seat 59, a moving rack 57 is fixedly installed at one end of the movable ejector rod 51 away from the manual operating rod 25, a first clamping plate 56 is arranged at one end of the movable ejector rod 51 close to the manual operating rod 25, the third straight gear 26 is meshed with the moving rack 57, the cleaning mechanism includes a cooling water collection box 41, a detachable metal microporous filter screen 45 is arranged on the circumferential inner wall of the cooling water collection box 41, three rotatable centrifugal flapper plates 44 are arranged on the cooling water collection box 41, a rotating shaft 43 is arranged on the cooling water collection box 41, a second straight gear 42 is fixedly installed on the rotating shaft 43, a first gear synchronous belt 12 is meshed with the second straight gear 42, a first combined tooth 11 is meshed with the inner wall of the first gear synchronous belt 12, a second combined tooth 14 is meshed with the first combined tooth 11, a second gear synchronous belt 15 is meshed with the second combined tooth 14, a first straight gear 23 is meshed with the inner wall of the second gear synchronous belt 15, the first straight gear 23 is fixedly installed on the connecting shaft 22, the manual clamping mechanism includes a second fixed seat 61, a locking screw 63 is installed through the second fixed seat 61 by thread, an adjustable clamping plate assembly is arranged on the fixed platform 33, the clamping plate assembly includes a rotating adjustment plate 66, the rotating adjustment plate 66 is rotatably installed on the fixed platform 33 through a rotating rod and a bearing, an arc-shaped groove is opened on the rotating adjustment plate 66, and a positioning screw is arranged in the opened arc-shaped groove. When the device cuts and samples the metallographic specimen, the metal block needs to be placed on the two clamping mechanisms, and the clamping plate assembly on the device can adjust the cutting angle of the metal block, so that it can be used when studying special properties such as the texture and anisotropy of the material. The user uses a tool to loosen the positioning screw in the arc-shaped groove opened on the rotating adjustment plate 66, and then can rotate through the rotating rod and the bearing to make the first positioning plate 65 deflect in angle. And there is a pointer on the fixed platform 33 to observe the rotation angle. After the rotation is completed, the positioning screw can be rotated in the reverse direction to lock the position of the first positioning plate 65. Since the U-shaped connecting frame 67 and the second positioning plate 68 are fixedly connected to the first positioning plate 65, the rotation angle of the second positioning plate 68 is the same as that of the first positioning plate 65, so as to adapt to the fixation of the metal block at different angles to cope with various detections.

[0018] A cutting groove 34 is formed in the sampling main box body 31. The cutting blade 24 is vertically aligned with the cutting groove 34 formed in the sampling main box body 31. Two limit blocks 52 are fixedly installed on the movable ejector rod 51. A connecting plate 54 is slidably installed through the movable ejector rod 51. A compression spring 53 is provided between the limit block 52 and the connecting plate 54. Then, the user can operate the manual clamping mechanism to fix the metal block. The user rotates the locking screw 63. Through the threaded connection between the locking screw 63 and the second fixed seat 61, and the bearing installation between the locking screw 63 and the two second guide rods 64, the two second guide rods 64 can be driven to move towards the metal block. At this time, the second clamping plate 62 can rotate with the two second guide rods 64, so as to adapt to the clamping of metal blocks at different angles. After the metal block is clamped, the cutting operation can be carried out.

[0019] Two first guide rods 55 are fixedly installed on the connecting plate 54. The first clamping plate 56 is rotatably connected between the two first guide rods 55. The cooling water collection tank 41 is located inside the sampling main box body 31. A connecting pipe 46 is fixedly installed on the side end of the sampling main box body 31. The connecting pipe 46 is connected to the cooling water collection tank 41. First, turn on the cooling water pumps provided on the cutting power assembly 21 and the cutting blade 24 (the cooling water pump on the cutting blade 24 is a prior art, and its specific shape is a bendable water pipe, so as to cool the contact area between the cutting blade 24 and the metal block). After turning on these two things, the protective cover 32 can be closed. Then, observe the cutting power assembly 21 through the observation plate on the protective cover 32. Then, rotate the manual operating rod 25, so that the manual operating rod 25 can rotate. Since the manual operating rod 25 is fixedly connected to the cutting power assembly 21 and is rotationally installed on the fixed platform 33 with limited rotation, rotating the cutting power assembly 21 can rotate the cutting blade 24, so that the cutting blade 24 rotates around the center of the manual operating rod 25 and gradually approaches the metal block, so as to cut it. When the manual operating rod 25 rotates, the third straight gear 26 on the manual operating rod 25 also rotates. Through the meshing between the third straight gear 26 and the moving rack 57, the moving rack 57 can move towards the metal block, so as to drive the movable ejector rod 51, the connecting plate 54 and the two first guide rods 55 to move. At this time, the two first guide rods 55 will drive the first clamping plate 56 to fit on the metal block. Similarly, the angle of the first clamping plate 56 can change with the metal block. Since the compression spring 53 is arranged between the movable ejector rod 51 and the connecting plate 54, through the pressure of the compression spring 53, during the cutting process of the cutting blade 24, the sampling end of the metal block can be continuously fixed according to the cutting depth, so as to adapt to the cutting force of the cutting blade 24 on the metal block and prevent the sampling end of the metal block from moving. Moreover, after the cutting is completed, the cutting blade 24 will be retracted to its original position. At this time, under the action of the third straight gear 26 and the moving rack 57, the sampling end can be quickly taken out for protection to avoid affecting the measurement.

[0020] Three centrifugal flinging plates 44 are fixedly installed on the rotating shaft 43 at equal circumferential intervals. Both the first combined gear 11 and the second combined gear 14 are formed by welding a bevel gear and a spur gear. The first combined gear 11 and the second combined gear 14 are both rotationally installed inside the sampling main box body 31 with limited positions by bearings. During cutting, the cooling water on the cutting blade 24 will be sprinkled on the cutting blade 24 and the metal block. At the same time, since the cutting blade 24 rotates clockwise, the cooling water will be flung into the cutting groove 34 opened on the fixed platform 33 under the rotation of the cutting blade 24. At this time, due to the rotation of the connecting shaft 22 at the side end of the cutting blade 24, the connecting shaft 22 drives the first straight gear 23 to rotate. The first straight gear 23 drives the second gear synchronous belt 15 to rotate. The second gear synchronous belt 15 drives the second combined gear 14 to rotate. The bevel gear side of the second combined gear 14 meshes with the first combined gear 11, so the first combined gear 11 can rotate. Through the connection of the first gear synchronous belt 12, the first combined gear 11 can drive the second straight gear 42 to rotate. The rotation of the second straight gear 42 drives the three centrifugal flinging plates 44 to rotate. Through centrifugal force, the three centrifugal flinging plates 44 can fling the falling water towards the circumferential inner wall of the metal microporous filter screen 45. At this time, the metal microporous filter screen 45 can filter the cutting debris in the cooling water. Then the filtered cooling water will fall into the interior of the cooling water collection box 41 and then flow back to the box where the water pump pumps water through the connecting pipe 46 for secondary utilization.

[0021] Two second guide rods 64 are rotationally installed through the side end of the locking screw rod 63 with bearings. The side ends of the two second guide rods 64 are rotationally installed with a second clamping plate 62. A first positioning plate 65 is fixedly installed on the rotating adjustment plate 66. A U-shaped connecting frame 67 is fixedly installed on the first positioning plate 65. A second positioning plate 68 is fixedly installed on the U-shaped connecting frame 67. The first positioning plate 65 corresponds to the second clamping plate 62, and the second positioning plate 68 corresponds to the first clamping plate 56.

[0022] Working principle: First step, when the device cuts and samples a metallographic specimen, the metal block needs to be placed on two sets of clamping mechanisms. The clamping plate assembly on the device can adjust the cutting angle of the metal block, so it can be used when studying special properties such as the texture and anisotropy of materials. The user uses a tool to loosen the positioning screw in the arc-shaped groove opened in the rotary adjusting plate 66, and then can rotate the first positioning plate 65 by rotating the rotating rod and the bearing. And there is a pointer on the fixed platform 33 to observe the rotation angle. After the rotation is completed, the positioning screw can be rotated in the reverse direction to lock the position of the first positioning plate 65. Since the U-shaped connecting frame 67 and the second positioning plate 68 are fixedly connected to the first positioning plate 65, the rotation angle of the second positioning plate 68 is the same as that of the first positioning plate 65, so as to adapt to the fixation of the metal block at different angles to cope with various detections.

[0023] Second step, then the user can operate the manual clamping mechanism to fix the metal block. The user rotates the locking screw 63. Through the threaded connection between the locking screw 63 and the second fixed seat 61, and the bearing installation between the locking screw 63 and the two second guide rods 64, the two second guide rods 64 can be driven to move towards the metal block. At this time, the second clamping plate 62 can rotate with the two second guide rods 64, so as to adapt to the clamping of metal blocks at different angles. After the metal block is clamped, the cutting operation can be carried out.

[0024] In the third step, first turn on the cooling water pumps provided on the cutting power assembly 21 and the cutting blade 24 (the cooling water pump on the cutting blade 24 is a prior art, and its specific shape is a bendable water pipe, so as to cool the contact area between the cutting blade 24 and the metal block). After these two things are turned on, the protective cover 32 can be closed. Then, observe the cutting power assembly 21 through the observation plate on the protective cover 32. Then, by rotating the manual operating rod 25, the manual operating rod 25 can be rotated. Since the manual operating rod 25 is fixedly connected to the cutting power assembly 21 and is rotationally installed on the fixed platform 33 with limited rotation, rotating the cutting power assembly 21 can rotate the cutting blade 24, so that the cutting blade 24 rotates around the center of the manual operating rod 25 and gradually approaches the metal block, so as to cut it. When the manual operating rod 25 rotates, the third straight gear 26 on the manual operating rod 25 also rotates. Through the meshing between the third straight gear 26 and the moving rack 57, the moving rack 57 can be moved in the direction of the metal block, so as to drive the movable ejector rod 51, the connecting plate 54 and the two first guide rods 55 to move. At this time, the two first guide rods 55 will drive the first clamping plate 56 to fit on the metal block. Similarly, the angle of the first clamping plate 56 can be changed along with the metal block. Since the compression spring 53 is provided between the movable ejector rod 51 and the connecting plate 54, through the pressure of the compression spring 53, during the cutting process, the cutting blade 24 can continuously fix one end of the metal block for sampling along with the cutting depth, so as to adapt to the cutting force of the cutting blade 24 on the metal block and prevent the sampling end of the metal block from moving. Moreover, after the cutting is completed, the cutting blade 24 will be retracted to its original position. At this time, under the action of the third straight gear 26 and the moving rack 57, the sampling end can be quickly taken out for protection to avoid affecting the measurement.

[0025] Fourthly, during cutting, the cooling water on the cutting blade 24 will be sprinkled on the cutting blade 24 and the metal block. At the same time, since the cutting blade 24 rotates clockwise, the cooling water will be thrown into the cutting groove 34 opened on the fixed platform 33 under the rotation of the cutting blade 24. At this time, due to the rotation of the connecting shaft 22 at the side end of the cutting blade 24, the connecting shaft 22 drives the first straight gear 23 to rotate. The first straight gear 23 drives the second gear synchronous belt 15 to rotate. The second gear synchronous belt 15 drives the second combined tooth 14 to rotate. The bevel gear side of the second combined tooth 14 meshes with the first combined tooth 11, so the first combined tooth 11 can rotate. Through the connection of the first gear synchronous belt 12, the first combined tooth 11 can drive the second straight gear 42 to rotate. The rotation of the second straight gear 42 drives the three centrifugal slingers 44 to rotate. Through centrifugal force, the three centrifugal slingers 44 can throw the falling water towards the circumferential inner wall of the metal microporous filter screen 45. At this time, the metal microporous filter screen 45 can filter the cutting debris in the cooling water. Then the filtered cooling water will fall into the inside of the cooling water collection box 41 and then flow back to the box where the water pump pumps water through the connecting pipe 46 for secondary use. Moreover, the fixed platform 33 and the sampling main box body 31 can be disassembled by bolts. When cleaning the metal microporous filter screen 45, only need to disassemble the fixed platform 33 from the sampling main box body 31, as Figure 4 the state described, the metal microporous filter screen 45 can be cleaned.

[0026] In the present invention, by setting the rotary adjustment plate 66 as a rotatable structure, which is rotatably mounted on the fixed platform 33 through a rotating rod and a bearing, and a positioning screw is provided in the opened arc-shaped groove, the metal block can be cut in different directions. When it is necessary to study special properties such as the texture and anisotropy of the material, loosen the positioning screw and rotate the rotary adjustment plate 66 to drive the first positioning plate 65, the U-shaped connecting frame 67 and the second positioning plate 68 to rotate. After adjusting to the appropriate angle, lock the positioning screw to adapt to the fixation of the metal block at different angles and meet various detection requirements. In the present invention, by meshing the moving rack 57 of the automatic clamping mechanism with the third straight gear 26, when rotating the manual operating rod 25 to drive the cutting power assembly 21 and the cutting blade 24 to rotate and cut the metal block, the third straight gear 26 on the manual operating rod 25 rotates synchronously, and then drives the moving rack 57, the movable ejector rod 51, the connecting plate 54 and the first guide rod 55 to move, so that the first clamping plate 56 fits on the metal block. At the same time, the compression spring 53 provided between the movable ejector rod 51 and the connecting plate 54 can continuously fix one end of the metal block for sampling during the cutting process as the cutting depth increases, avoiding the movement of the sampling end of the metal block. Moreover, after cutting is completed, under the action of the third straight gear 26 and the moving rack 57, it is convenient to quickly take out the sampling end for protection and facilitate disassembly. In the present invention, through the connection of a series of gears such as the first straight gear 23, the second gear synchronous belt 15, the second combined tooth 14, the first combined tooth 11, the first gear synchronous belt 12 and the second straight gear 42, when the cutting blade 24 rotates during cutting, the connecting shaft 22 drives the first straight gear 23 to rotate, and then drives the second gear synchronous belt 15, the second combined tooth 14, the first combined tooth 11, the first gear synchronous belt 12 and the second straight gear 42 to rotate in sequence, and finally drives the centrifugal flapper 44 on the cooling water collection tank 41 to rotate. The centrifugal flapper 44 throws the cooling water sprinkled during cutting towards the metal microporous filter screen 45, realizing the collection of the cooling water for cutting and avoiding the accumulation of cooling water in the equipment. In the present invention, by providing a detachable metal microporous filter screen 45 on the circumferential inner wall of the cooling water collection tank 41, when the centrifugal flapper 44 throws the cooling water towards the metal microporous filter screen 45, the metal microporous filter screen 45 can filter the cutting debris in the cooling water, and the filtered cooling water falls into the interior of the cooling water collection tank 41 and then flows back to the tank where the water pump pumps water through the connecting pipe 46 for secondary utilization, improving the utilization rate of water resources. In the present invention, various structures such as the manual clamping mechanism, the automatic clamping mechanism, the cleaning mechanism and the cutting power assembly are interlocked with each other, realizing a series of functions from multi-angle fixation of the metal block, stable clamping during the cutting process, cleaning of cutting debris to recycling of cooling water, improving the efficiency and quality of metallographic specimen cutting, meeting different detection requirements, reducing the risk of equipment failure at the same time, extending the service life of the equipment, and enhancing the overall practicality and reliability.

[0027] The embodiments of the present invention are given for purposes of illustration and description, and are not exhaustive or limit the invention to the disclosed forms. Many modifications and variations are obvious to those of ordinary skill in the art. The embodiments are chosen and described in order to best explain the principles of the invention and its practical application, and to enable those of ordinary skill in the art to understand the invention and design various embodiments adapted to particular uses with various modifications.

Claims

1. A metallographic sample cutting device for steel, comprising a sampling main box (31), a protective cover (32) hingedly connected to the sampling main box (31), a cutting power assembly (21) provided on the sampling main box (31), a connecting shaft (22) fixedly mounted on the side end of the cutting power assembly (21) via an output shaft, a cutting blade (24) provided on the connecting shaft (22), characterized in that: The sampling main box (31) is provided with a fixed platform (33), the fixed platform (33) is provided with a manual clamping mechanism and an automatic clamping mechanism, the interior of the sampling main box (31) is provided with a cleaning mechanism, a manual operating rod (25) is provided between the cutting power assembly (21) and the sampling main box (31), and the manual operating rod (25) is provided with a third spur gear (26); The automatic clamping mechanism comprises a first fixed seat (59), a movable push rod (51) is slidably mounted on the first fixed seat (59), a movable rack (57) is fixedly mounted on the end of the movable push rod (51) away from the manual operating rod (25), a first clamping plate (56) is provided on the end of the movable push rod (51) close to the manual operating rod (25), and the third spur gear (26) is meshingly connected with the movable rack (57); The cleaning mechanism comprises a cooling water collection box (41), a detachable metal microporous filter screen (45) is provided on the circumferential inner wall of the cooling water collection box (41), three groups of rotatable centrifugal throwers (44) are provided on the cooling water collection box (41), a rotating shaft (43) is provided on the cooling water collection box (41), a second spur gear (42) is fixedly mounted on the rotating shaft (43), and a first gear timing belt (12) is meshed on the second spur gear (42); The manual clamping mechanism comprises a second fixing seat (61), a locking screw (63) is installed on the second fixing seat (61) through a thread, and an adjustable clamping plate assembly is provided on the fixing platform (33), the clamping plate assembly comprises a rotating adjustment plate (66), and the rotating adjustment plate (66) is rotatably installed on the fixing platform (33) through a rotating rod and a bearing.

2. A metallographic sample cutting device for steel according to claim 1, characterized in that: The inner wall of the first gear synchronous belt (12) is meshed with a first combination of teeth (11), and the first combination of teeth (11) is meshed with a second combination of teeth (14); The second combined teeth (14) are meshed with a second gear synchronous belt (15), the inner wall of the second gear synchronous belt (15) is meshed with a first straight gear (23), and the first straight gear (23) is fixedly mounted on the connecting shaft (22).

3. A metallographic sample cutting device for steel according to claim 2, characterized in that: The sampling main box (31) is provided with a cutting groove (34), and the cutting blade (24) is vertically aligned with the cutting groove (34) provided on the sampling main box (31); Wherein, two limit blocks (52) are fixedly mounted on the movable push rod (51).

4. A metallographic sample cutting device for steel according to claim 3, characterized in that: A connecting plate (54) is slidably mounted through the movable top rod (51), an arc-shaped groove is provided on the rotary adjustment plate (66), and a positioning screw is provided in the arc-shaped groove; Wherein, a compression spring (53) is provided between the limit block (52) and the connecting plate (54).

5. A metallographic sample cutting device for steel according to claim 4, characterized in that: Two first guide rods (55) are fixedly mounted on the connecting plate (54); The first clamping plate (56) is rotatably connected to the two first guide rods (55).

6. A metallographic sample cutting device for steel according to claim 5, characterized in that: The cooling water collection box (41) is located inside the sampling main box (31), and a connecting pipe (46) is fixedly installed on the side end of the sampling main box (31); Wherein, the connecting pipe (46) is connected to the cooling water collecting tank (41).

7. A metallographic sample cutting device for steel according to claim 6, characterized in that: The three centrifugal throwing plates (44) are all fixedly mounted on the rotating shaft (43) at equidistant intervals around the circumference.

8. The metallographic sample cutting device for steel according to claim 7, characterized in that: The first combined tooth (11) and the second combined tooth (14) are both formed by welding a bevel gear and a flat gear; The first combined teeth (11) and the second combined teeth (14) are both rotatably mounted inside the sampling main box (31) via bearing limit stops.

9. A metallographic sample cutting device for steel according to claim 8, characterized in that: The side ends of the locking screw (63) are rotatably mounted with two second guide rods (64) passing through the bearings; Wherein, the second clamping plates (62) are rotatably mounted on the side ends of the two second guide rods (64).

10. A metallographic sample cutting device for steel according to claim 9, characterized in that: A first positioning plate (65) is fixedly mounted on the rotation adjustment plate (66), a U-shaped connecting frame (67) is fixedly mounted on the first positioning plate (65), and a second positioning plate (68) is fixedly mounted on the U-shaped connecting frame (67); The first positioning plate (65) corresponds to the second clamping plate (62), and the second positioning plate (68) corresponds to the first clamping plate (56).

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