Metallographic polishing and grinding machine with anti-splashing structure

Abstract

This utility model relates to the field of polishing machine technology, and in particular to a metallographic polishing machine with an anti-splash structure. It includes a base, on which a processing mechanism is mounted for workpiece processing. The processing mechanism includes: a main body assembly, comprising a processing box fixed to the rear end of the top of the base; a workbench assembly, comprising a base frame fixed inside the base, a cam divider mounted on the upper end of the processing box, a turntable fixed to the output end above the cam divider, workstation plates rotatably mounted on both sides of the upper end of the turntable, and a recessed clamping head fixed to the lower end of the workstation plate; and a positioning assembly, comprising a base plate fixed to the top of the processing box, a lower mounting seat fixed to the bottom rear end of the base plate, an upper mounting seat longitudinally slidably mounted inside the upper end of the lower mounting seat, and a third cylinder mounted at the bottom of the lower mounting seat for driving the upper mounting seat to lift and lower. Through alternating dual-station operation and automatic closed processing, parallel operation of workpiece polishing and loading / unloading is achieved, improving production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of polishing machine technology, specifically a metallographic polishing machine with an anti-splash structure. Background Technology

[0002] Metallographic grinding and polishing machines are key equipment in materials science laboratories for preparing metallographic samples. They are mainly used to grind and polish metal samples to obtain a smooth mirror surface that meets the requirements for microstructure observation. According to CN215092771U, a dual-disc continuously variable speed metallographic sample grinding and polishing machine is disclosed. This technology discloses a technical solution including "a grinding and polishing machine body, with symmetrical placement slots on the top of the grinding and polishing machine body, protective basins connected to the inner side of each placement slot, continuously variable speed motors symmetrically installed inside the grinding and polishing machine body, the output shaft of the continuously variable speed motors passing through the protective basins and connected to the grinding discs, water taps connected to the top of the grinding and polishing machine body on one side of the protective basins, water outlets of the water taps being rotatably connected to water outlet pipes, water supply hoses connected to the bottom of the water outlet pipes through water outlet connectors, and flushing valves and flushing pipes respectively connected to one side of the water outlet connectors and the bottom of the water supply hoses." This technology has the technical effects of "being able to evenly drip cold water onto the grinding discs, ensuring the accuracy of test data, and being able to evenly flush the surface of the grinding discs, washing away the waste from the surface of the grinding discs and the protective basins, facilitating the cleaning and maintenance of the grinding discs." During the metallographic sample polishing process, the polishing disc rotates and contacts the workpiece surface at high speed. At the same time, coolant or polishing agent is needed for lubrication, cooling and carrying of polishing debris. The centrifugal force generated in this process causes liquid mixed with polishing debris to splash outward from the polishing area. These splashes not only contaminate the equipment surface and laboratory environment, making cleaning work cumbersome, but also pose safety hazards to operators and affect the normal use of other precision instruments in the vicinity. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a metallographic grinding and polishing machine with an anti-splash structure. Through dual-station alternating operation and automatic closed processing, it realizes parallel operation of workpiece grinding and polishing and loading and unloading, thereby improving production efficiency.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a metallographic grinding and polishing machine with an anti-splash structure, comprising a base, wherein a processing mechanism is mounted on the base for workpiece processing, the processing mechanism comprising: The main components include a machining box fixed to the rear end of the top of the machine base; The workbench assembly includes a base frame fixed inside the machine base, a cam divider installed on the upper end of the processing box, a turntable fixed on the output end above the cam divider, workstations rotatably installed on both sides of the upper end of the turntable, and a recessed clamping head fixed at the lower end of the workstation. The positioning assembly includes a base plate fixed to the top of the processing box, a lower mounting seat fixed to the bottom of the rear end of the base plate, an upper mounting seat slidably mounted on the upper end of the lower mounting seat, a third cylinder mounted on the bottom of the lower mounting seat for driving the upper mounting seat to rise and fall, a concave chuck head rotatably mounted on the upper end of the upper mounting seat, and a first motor mounted inside the turntable for driving the convex chuck head to rotate. A polishing assembly is mounted on the main assembly and used for polishing workpieces.

[0005] Preferably, the workbench assembly further includes four limiting holes arranged circumferentially inside the workstation, with limiting heads slidably installed longitudinally through both sides of the turntable, a vertical plate fixed to the top of the base plate, a grooved plate slidably installed longitudinally on the upper end of the vertical plate and cooperating with the limiting heads, and a second cylinder installed on the vertical plate for driving the grooved plate to rise and fall.

[0006] Preferably, the grinding and polishing assembly includes a lower fixed seat fixed to the top of the processing box, an upper fixed seat fixed to the upper end of the lower fixed seat, a movable plate longitudinally slidably installed inside the lower fixed seat, a servo cylinder installed on the top of the upper fixed seat for driving the movable plate to rise and fall, a splash guard fixed to the lower end of the movable plate, a grinding head rotatably installed at the lower end of the splash guard, and a second motor installed on the top of the splash guard for driving the grinding head to rotate.

[0007] Preferably, both ends of the inside of the splash guard are equipped with vacuum heads, and the upper end of the vacuum heads is connected to a vacuuming device.

[0008] Preferably, the main component further includes a door that is longitudinally slidably installed at the front end of the processing box, and a first cylinder is installed at both the left and right ends of the processing box for driving the door to rise and fall.

[0009] Preferably, one of the workstations is located in front of the processing box and is used for loading and unloading workpieces, while the other workstation is located inside the processing box and is used for grinding and polishing workpieces.

[0010] Beneficial effects This invention provides a metallographic polishing machine with an anti-splash structure. Compared with the prior art, it has the following advantages: 1. The turntable is driven by a cam divider to rotate intermittently, transporting the workpiece-bearing workstation to the enclosed grinding and polishing station inside the processing box; then, the output end of the third cylinder drives the upper mounting base to rise, so that the convex chuck mounted on it engages with the concave chuck at the lower end of the workstation; then, the output end of the first motor drives the convex chuck to rotate, thereby causing the workstation and the workpiece fixed on it to rotate at a precise angle together; this achieves automatic rotation of the workpiece without manual intervention during grinding and polishing, ensuring the uniformity of the grinding and polishing effect.

[0011] 2. During the rotation of the turntable, the limiting head remains in a downward state under its own gravity, causing its top end to disengage from the limiting hole of the workstation plate. When the turntable rotates to the predetermined workstation and stops under the drive of the cam divider, the turntable itself drives the limiting head inside to move to a position directly opposite the groove plate fixed on the base plate. When the workstation plate needs to be locked for polishing, the second cylinder is activated, driving the groove plate to rise. During the rise, the groove plate contacts the bottom of the limiting head and drives it to rise together, inserting the top end of the limiting head into the circumferentially arranged limiting hole on the workstation plate, thus realizing the automatic switching between the indexing and locking states. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the structure of the workbench component of this utility model; Figure 3 This utility model Figure 2 A schematic diagram of the structure of part A in the middle; Figure 4 This is a schematic diagram of the structure of the bottom of the turntable in this utility model; Figure 5 This is a schematic diagram of the positioning component in this utility model; Figure 6 This is a schematic diagram of the grinding and polishing component in this utility model.

[0013] In the diagram: 1. Machine base; 2. Machining mechanism; 21. Main component; 211. Machining box; 212. Box door; 213. First cylinder; 22. Workbench assembly; 221. Base frame; 222. Cam divider; 223. Turntable; 224. Workstation plate; 225. Concave chuck; 226. Limiting hole; 227. Limiting head; 228. Vertical plate; 229. Groove plate; 2210. Second cylinder; 23. Positioning assembly; 231. Base plate; 232. Lower mounting base; 233. Upper mounting base; 234. Third cylinder; 235. Convex chuck; 236. First motor; 24. Grinding and polishing assembly; 241. Lower fixed base; 242. Upper fixed base; 243. Servo cylinder; 244. Movable plate; 245. Splash guard; 246. Second motor; 247. Grinding head; 248. Dust suction head. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] Please see Figure 1 - Figure 6 This utility model provides a technical solution: a metallographic grinding and polishing machine with an anti-splash structure, including a base 1, on which a processing mechanism 2 is provided for workpiece processing, the processing mechanism 2 including: The main component 21 includes a processing box 211 fixed to the rear end of the top of the base 1; The workbench assembly 22 includes a base frame 221 fixed inside the machine base 1, a cam divider 222 installed on the upper end of the processing box 211, a turntable 223 fixed on the upper output end of the cam divider 222, a work station plate 224 rotatably installed on both sides of the upper end of the turntable 223, and a recessed clamping head 225 fixed on the lower end of the work station plate 224. The positioning component 23 includes a base plate 231 fixed to the top of the processing box 211. A lower mounting seat 232 is fixed to the bottom of the rear end of the base plate 231. An upper mounting seat 233 is longitudinally slidably mounted inside the upper end of the lower mounting seat 232. A third cylinder 234 is mounted at the bottom of the lower mounting seat 232 and is used to drive the upper mounting seat 233 to rise and fall. A concave clamp head 225 is rotatably mounted on the upper end of the upper mounting seat 233. A first motor 236 is mounted inside the turntable 223 and is used to drive the convex clamp head 235 to rotate. The grinding and polishing assembly 24 is mounted on the main body assembly 21 and is used for grinding and polishing the workpiece.

[0016] In this embodiment, the turntable 223 is driven by the cam divider 222 to rotate intermittently, conveying the workpiece-bearing plate 224 to the sealed grinding and polishing station inside the processing box 211; then, the output end of the third cylinder 234 drives the upper mounting base 233 to rise, so that the convex chuck 235 mounted on it engages with the concave chuck 225 at the lower end of the workpiece plate 224; then, the output end of the first motor 236 drives the convex chuck 235 to rotate, thereby driving the workpiece plate 224 and the workpiece fixed on it to rotate at a precise angle together; thus, the workpiece can rotate automatically without manual intervention during grinding and polishing, ensuring the uniformity of the grinding and polishing effect.

[0017] Specifically, the workbench assembly 22 also includes four limiting holes 226 arranged circumferentially inside the work station plate 224, and limiting heads 227 are longitudinally slidably installed on both sides inside the turntable 223. A vertical plate 228 is fixed on the top of the base plate 231, and a grooved plate 229 is longitudinally slidably installed on the upper end of the vertical plate 228 and cooperates with the limiting head 227. A second cylinder 2210 is installed on the vertical plate 228 and is used to drive the grooved plate 229 to rise and fall.

[0018] In this embodiment, during the rotation of the turntable 223, the limiting head 227 remains in a falling state under its own gravity, causing its top end to disengage from the limiting hole 226 of the workstation plate 224. When the turntable 223 rotates to the predetermined workstation and stops under the drive of the cam divider 222, the turntable 223 itself drives the limiting head 227 inside it to move to a position directly opposite the groove plate 229 fixed on the substrate 231. When it is necessary to lock the workstation plate 224 for polishing, the second cylinder 2210 is activated, driving the groove plate 229 to rise. During the rising process, the groove plate 229 contacts the bottom of the limiting head 227 and drives it to rise together, inserting the top end of the limiting head 227 into the circumferentially arranged limiting hole 226 on the workstation plate 224, thus realizing the automatic switching between the rotation and locking states.

[0019] Specifically, the grinding and polishing assembly 24 includes a lower fixed seat 241 fixed to the top of the processing box 211, an upper fixed seat 242 fixed to the upper end of the lower fixed seat 241, a movable plate 244 longitudinally slidably installed inside the lower fixed seat 241, a servo cylinder 243 installed on the top of the upper fixed seat 242 for driving the movable plate 244 to rise and fall, a splash guard 245 fixed to the lower end of the movable plate 244, a grinding head 247 rotatably installed on the lower end of the splash guard 245, and a second motor 246 installed on the top of the splash guard 245 for driving the grinding head 247 to rotate.

[0020] In this embodiment, the output end of the servo cylinder 243 drives the movable plate 244 to slide downward along the interior of the lower fixed seat 241, thereby causing the splash guard 245 to descend as a whole until its lower edge approaches or contacts the work station plate 224, forming a closed or semi-closed working space; then the output end of the second motor 246 drives the grinding head 247 to rotate, grinding and polishing the positioned workpiece.

[0021] Specifically, both ends of the inside of the splash guard 245 are equipped with vacuum heads 248, and the upper end of the vacuum heads 248 is connected to the vacuuming equipment.

[0022] In this embodiment, a continuous negative pressure is generated by an external vacuuming device connected to the upper end of the vacuum head 248, which actively and promptly removes the fine dust, mist, and splashed polishing liquid droplets generated during the polishing process directly from the source.

[0023] Specifically, the main component 21 also includes a door 212 that is longitudinally slidably installed at the front end of the processing box 211. A first cylinder 213 is installed at both the left and right ends of the processing box 211 and is used to drive the door 212 to rise and fall.

[0024] In this embodiment, when the equipment starts the grinding and polishing process, the first cylinders 213 installed at the left and right ends of the processing box 211 act synchronously, driving the box door 212 to descend vertically and close the front opening of the processing box 211; when it is necessary to switch work positions, the first cylinders 213 drive the box door 212 to rise and open the operating area.

[0025] Specifically, one workstation plate 224 is located in front of the processing box 211 and is used for loading and unloading workpieces, while the other workstation plate 224 is located inside the processing box 211 and is used for grinding and polishing workpieces.

[0026] In this embodiment, the turntable 223 is driven by the cam divider 222 to perform precise intermittent rotation, so that the two workstations 224 can alternately enter the sealed grinding and polishing station inside the processing box 211 and the external loading station that is easy to operate, thereby realizing parallel operation of processing and loading / unloading, and improving equipment utilization and production efficiency.

[0027] The working principle and usage process of this utility model are as follows: First, the operator can load and unload workpieces on the workstation plate 224 located in front of the processing box 211, while the other workstation plate 224 located inside the processing box 211 is in standby or processing completed state. Subsequently, the turntable 223 is driven by the cam divider 222 to rotate precisely intermittently, so that the front workstation plate 224, which has completed loading and unloading, enters the processing box 211, while the inner workstation plate 224, which has completed grinding and polishing, rotates out to the front, realizing the exchange of workstations; then the first cylinder 213 drives the box door 212 to descend, closing the front opening of the processing box 211 and forming a safe and sealed processing environment. Then, the second cylinder 2210 drives the groove plate 229 to rise, causing the limiting head 227 to insert into the limiting hole 226 of the workstation plate 224 to complete the horizontal locking; next, the third cylinder 234 drives the upper mounting base 233 to rise, so that the convex head 235 engages with the concave head 225 of the workstation plate 224, and the first motor 236 drives the workstation plate 224 and the workpiece to rotate. Finally, the servo cylinder 243 drives the splash guard 245 to descend and form a sealed space, and the second motor 246 drives the grinding head 247 to perform grinding and polishing. During this process, the dust suction head 248 actively removes the generated dust and droplets.

[0028] It should be noted that, in this document, relational terms such as "first" and "second" are used only 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 process, method, article, or apparatus.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A metallographic polishing and grinding machine with anti-splashing structure, comprising a base (1), characterized in that: The machine base (1) is provided with a processing mechanism (2) for workpiece processing. The processing mechanism (2) includes: The main body component (21) includes a machining box (211) fixed to the rear end of the top of the base (1). The workbench assembly (22) includes a base frame (221) fixed inside the machine base (1), a cam divider (222) installed on the upper end of the processing box (211), a turntable (223) fixed on the output end above the cam divider (222), a work station plate (224) rotatably installed on both sides of the upper end of the turntable (223), and a recessed chuck (225) fixed on the lower end of the work station plate (224). The positioning assembly (23) includes a base plate (231) fixed to the top of the processing box (211), a lower mounting seat (232) fixed to the bottom of the rear end of the base plate (231), an upper mounting seat (233) slidably mounted on the upper end of the lower mounting seat (232), a third cylinder (234) mounted on the bottom of the lower mounting seat (232) for driving the upper mounting seat (233) to rise and fall, a concave chuck head (225) rotatably mounted on the upper end of the upper mounting seat (233), and a first motor (236) mounted inside the turntable (223) for driving the convex chuck head (235) to rotate. A polishing assembly (24) is mounted on the main assembly (21) and used for polishing workpieces.

2. The metallographic polishing machine with anti-splash structure according to claim 1, characterized in that: The workbench assembly (22) also includes four limiting holes (226) arranged circumferentially inside the work station (224). Limiting heads (227) are longitudinally slidably installed on both sides of the turntable (223). A vertical plate (228) is fixed on the top of the base plate (231). A grooved plate (229) is longitudinally slidably installed on the upper end of the vertical plate (228) and cooperates with the limiting head (227). A second cylinder (2210) is installed on the vertical plate (228) and is used to drive the grooved plate (229) to rise and fall.

3. The metallographic polishing machine with anti-splashing structure according to claim 1, characterized in that: The polishing assembly (24) includes a lower fixed seat (241) fixed to the top of the processing box (211), an upper fixed seat (242) fixed to the upper end of the lower fixed seat (241), a movable plate (244) slidably installed inside the lower fixed seat (241), a servo cylinder (243) installed on the top of the upper fixed seat (242) and used to drive the movable plate (244) to rise and fall, a splash guard (245) fixed to the lower end of the movable plate (244), a grinding head (247) rotatably installed on the lower end of the splash guard (245), and a second motor (246) installed on the top of the splash guard (245) and used to drive the grinding head (247) to rotate.

4. The metallographic polishing machine with anti-splashing structure according to claim 3, characterized in that: The splash guard (245) has a vacuum head (248) installed at both ends inside, and the upper end of the vacuum head (248) is connected to the vacuuming equipment.

5. The metallographic polishing machine with anti-splashing structure according to claim 1, characterized in that: The main component (21) also includes a door (212) that is longitudinally slidably installed at the front end of the processing box (211). A first cylinder (213) is installed at both the left and right ends of the processing box (211) and is used to drive the door (212) to rise and fall.

6. The metallographic polishing machine with anti-splashing structure according to claim 1, characterized in that: One of the workstations (224) is located in front of the processing box (211) and is used for loading and unloading workpieces, while the other workstation (224) is located inside the processing box (211) and is used for grinding and polishing workpieces.

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