A multi-station metallographic polishing system

Abstract

The utility model provides a kind of multi-station metallographic grinding and polishing system, and the system includes: workbench, is equipped with several grinding and polishing stations on the workbench;Three-dimensional moving mechanism is set on the workbench;Sample clamping mechanism is set in the execution end of the three-dimensional moving mechanism.The utility model drives sample clamping mechanism to move in three-dimensional direction by three-dimensional moving mechanism, to simultaneously clamp multiple to-be-ground metallographic samples by sample clamping mechanism and drive multiple to-be-ground metallographic samples to move to each grinding and polishing station, drives the to-be-ground metallographic sample to rotate, to cooperate with the abrasive of rotation and grind and polish to-be-ground metallographic sample, complete metallographic grinding and polishing, entire grinding and polishing process does not need artificial cooperation, greatly reduces the workload of artificial grinding sample while improving the time utilization efficiency and utilization value of artificial, solve the problem that grinding and polishing of existing metallographic to-be-ground metallographic sample is manually carried out by artificial, and need a lot of artificial cost and affect work efficiency.

Description

Technical Field

[0001] This utility model relates to the field of polishing machine technology, and more specifically, to a multi-station metallographic polishing system. Background Technology

[0002] Metallographic analysis is an important tool for experimental research on metallic materials, but the metallographic sample preparation process is tedious and monotonous. Currently, the grinding and polishing of most metallographic samples requires manual fixing of the sample to be ground onto the sample tray, followed by manual removal of the sample after grinding. This incurs significant labor costs and reduces work efficiency. Summary of the Invention

[0003] In view of this, this utility model proposes a multi-station metallographic grinding and polishing system, which aims to solve the problem that the grinding and polishing of metallographic samples to be ground is carried out manually, which requires a lot of labor costs and affects work efficiency.

[0004] This utility model proposes a multi-station metallographic polishing system, which includes: a worktable with several polishing stations; a three-dimensional moving mechanism disposed on the worktable; and a sample clamping mechanism disposed at the execution end of the three-dimensional moving mechanism for three-dimensional movement under the drive of the three-dimensional moving mechanism, so as to simultaneously grasp multiple metallographic samples to be polished and move the multiple metallographic samples to be polished to each polishing station, drive the metallographic samples to be polished to rotate, so as to cooperate with the rotating abrasive to polish the metallographic samples to be polished.

[0005] Furthermore, in the aforementioned multi-station metallographic polishing system, the sample clamping mechanism includes: a support; a sample clamping assembly rotatably mounted on the support, the sample clamping assembly having at least three gripper bodies along its circumference for clamping metallographic samples to be polished corresponding to each gripper body; and a central floating compensation assembly mounted on the sample clamping assembly and located between the gripper bodies for position compensation of the metallographic samples to be polished placed between the central floating compensation assembly and the gripper bodies, based on the metallographic samples to be polished cooperating with the gripper bodies, so as to clamp the multiple metallographic samples to be polished separately.

[0006] Furthermore, in the aforementioned multi-station metallographic polishing system, the central floating compensation component includes: a compensation support plate; a floating clamping member, which is positioned on the compensation support plate in a position-adjustable manner, for position compensation of the metallographic sample to be polished, placed between the central floating compensation component 33 and the clamping body, based on the metallographic sample to be polished and the clamping body; and at least three reset connecting members, which are arranged in a radiating pattern along the circumference of the floating clamping member on the outer periphery of the floating clamping member, and the two ends of each reset connecting member are respectively connected to the floating clamping member and the compensation support plate, for applying an elastic reset force to the floating clamping member, so that the floating clamping member is reset to the center position of the plurality of clamping bodies when in a free state.

[0007] Furthermore, in the aforementioned multi-station metallographic grinding and polishing system, the floating clamping component includes: a floating block, the floating block having a plurality of clamping grooves on its circumference corresponding one-to-one with the gripper body, used to limit the metallographic sample to be ground so as to cooperate with the gripper body for clamping; a connecting rod, disposed on the top of the floating block, the compensation support plate having a circumferential floating compensation hole, the connecting rod being inserted through the circumferential floating compensation hole in a manner that allows for position adjustment within the circumferential floating compensation hole, used to adjust the horizontal support position of the floating block to achieve position offset compensation; and a clamping plate, detachably disposed on the connecting rod, and the clamping plate and the floating block being respectively placed on both sides of the compensation support plate, used to connect the reset connecting component to drive the floating block to reset.

[0008] Furthermore, in the aforementioned multi-station metallographic polishing system, each polishing station is equipped with an abrasive support mechanism. The abrasive support mechanism supports and lifts the abrasive, allowing it to be lifted to the support station for replacement when needed. The worktable also features a layered polishing consumable storage rack, vertically adjustable to support the abrasive in layers. When the abrasive is replaced, the rack moves to the top of the worktable. The actuator of the three-dimensional moving mechanism is equipped with a replacement shovel, which moves under the drive of the mechanism to insert under the abrasive and move it, thus replacing the abrasive.

[0009] Furthermore, in the aforementioned multi-station metallographic polishing system, the layered polishing consumable storage rack includes: a support rod and at least two storage plates disposed on the support rod; wherein, multiple storage plates are coaxially and spaced apart for storing abrasive materials separately; each storage plate is a U-shaped structure, and the opening of the U-shaped structure faces the same side, so that the replacement shovel can move up and down from the U-shaped relief groove of the storage plate, so that the abrasive materials on the storage plate or the replacement shovel can be exchanged and supported, thereby realizing abrasive material replacement.

[0010] Furthermore, in the aforementioned multi-station metallographic polishing system, the abrasive support mechanism includes: a support ring; and a lifting plate, which is movably disposed on the inner circumference of the support ring along its axial direction. The lifting plate can descend to a support station and is flush with the top wall of the support ring. It can support the abrasive through the support ring and the lifting plate, so as to polish the workpiece to be polished. The lifting plate can also drive the abrasive it supports to rise to a replacement station, so as to replace the abrasive through the replacement shovel.

[0011] Furthermore, in the aforementioned multi-station metallographic polishing system, the replacement shovel has a U-shaped structure; the distance between the two side plates of the replacement shovel is less than the width of the U-shaped clearance groove of the storage plate, so that the replacement shovel can move up and down at the U-shaped clearance groove of the storage plate.

[0012] Furthermore, in the aforementioned multi-station metallographic polishing system, the three-dimensional moving mechanism includes: a Y-axis moving component; an X-axis moving component, disposed at the power output end of the Y-axis moving component, for moving along the Y-axis under the drive of the Y-axis moving component; and a Z-axis moving component, disposed at the power output end of the X-axis moving component, for moving along the Y-axis along the Y-axis with the X-axis moving component and moving along the X-axis under the drive of the X-axis moving component, and also for driving the sample clamping mechanism to move vertically relative to the X-axis moving component along the Z-axis.

[0013] Furthermore, the aforementioned multi-station metallographic polishing system further includes: a sample holder for placing metallographic samples to be polished; and a robotic arm positioned between the sample holder and the worktable for gripping the metallographic samples to be polished on the sample holder and transferring the metallographic samples to be polished one by one to the worktable.

[0014] This utility model provides a multi-station metallographic polishing system. A three-dimensional moving mechanism drives a sample clamping mechanism to move in three dimensions, simultaneously clamping multiple metallographic samples to be polished and moving them to various polishing stations. The samples are then driven to rotate, cooperating with the rotating abrasive to polish them, completing the metallographic polishing process. The entire polishing process requires no manual intervention, significantly reducing the workload of manual sample grinding while improving the efficiency and value of manual labor. It solves the problem of existing manual polishing methods that require significant labor costs and affect work efficiency. This system automates the metallographic sample polishing function and stably and automatically prepares high-quality metallographic samples with contaminant-free, scratch-free surfaces and clear boundaries of non-metallic inclusions. This greatly reduces the error in sample result evaluation caused by manual sample preparation and improves the accuracy of subsequent testing results. Attached Figure Description

[0015] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of the invention. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings: Figure 1 A schematic diagram of the structure of the multi-station metallographic polishing system provided in this embodiment of the utility model; Figure 2 This is a schematic diagram of the sample clamping mechanism provided in an embodiment of the present invention; Figure 3 A schematic diagram of the structure of the central floating compensation component provided in this embodiment of the utility model; Figure 4 A front view of the center floating compensation component provided in an embodiment of this utility model; Figure 5 for Figure 4 Sectional view of AA; Figure 6 A schematic diagram of the structure of the layered grinding and polishing consumables storage rack provided in this embodiment of the utility model; Figure 7 A schematic diagram of the support rod provided in an embodiment of this utility model; 1-Workbench, 11-Polishing station, 12-Cleaning station, 13-Consumables storage station, 14-Door switch, 15-Alarm light, 16-Operation panel, 17-Foot, 18-Upper sample holder, 19-Lower sample holder, 2-Three-dimensional moving mechanism, 21-X-axis moving component, 22-Y-axis moving component, 23-Z-axis moving component, 3-Sample clamping mechanism, 31-Bracket, 32-Sample clamping component, 321-Claw body, 33-Central floating compensation component, 331-Compensation support plate, 3311-Circumferential floating compensation hole, 3312-Leaning groove, 3313-Mounting groove, 332-Floating clamping component, 3321-Floating block, 33211-Clamping groove, 3322-Connecting rod, 3323-Limiting block, 3324- Clamping plate, 333-Reset connector, 3331-Connecting column, 3332-Tension spring, 334-Bearing, 34-Grinding and polishing compensation assembly, 341-Fixed support plate, 342-Floating support ring, 343-Auxiliary support column, 344-Floating spring, 345-Guide tube seat, 35-Drive assembly, 36-Pneumatic slip ring, 361-Fixed part, 362-Rotating part, 4-Sample rack, 5-Robot arm, 6-Abrasive support mechanism, 61-Support ring, 62-Lifting plate, 7-Abrasive, 8-Layered grinding and polishing consumable storage rack, 81-Support rod, 811-Fixed section, 812-Sliding section, 813-Card hole, 814-Card fitting, 82-Storage plate, 821-U-shaped clearance groove, 9-Replacement shovel, 10-Metallographic sample to be ground. Detailed Implementation

[0016] Exemplary embodiments of the present disclosure will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the disclosure to those skilled in the art. It should be noted that, unless otherwise specified, embodiments and features of the present invention can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0017] See Figure 1 This is a schematic diagram of the structure of the multi-station metallographic polishing system provided in this embodiment of the present invention. As shown in the figure, the system includes: a worktable 1, a three-dimensional moving mechanism 2, a sample clamping mechanism 3, a sample holder 4, a robotic arm 5, an abrasive support mechanism 6, abrasive 7, a layered polishing consumable storage rack 8, and a replacement shovel 9.

[0018] The workbench 1 is equipped with several grinding and polishing stations 11.

[0019] Specifically, the workbench 1 can be a frame with a work surface for facilitating related operations. As a support frame, the workbench 1 can have several polishing stations 11. In this embodiment, four polishing stations 11 are arranged in two rows and two columns. Each polishing station 11 can be equipped with a liquid supply tap for spraying polishing liquid. The workbench 1 can also have a cleaning station 12 for cleaning the polished samples. In this embodiment, the workbench 1 can also have a consumable storage station 13 for storing abrasive materials 7 in layers. In this embodiment, the workbench 1 can be a box-like structure with an outer shell. The bottom support platform, especially at the corresponding positions of each station, can have a door 14, particularly on the front and left / right side panels, to facilitate related operations and maintenance at each station. In this embodiment, the workbench 1 can also have an alarm light 15 with warning functions and an operation panel 16 with start, stop, and emergency stop buttons. To ensure the stability of the workbench 1, preferably, the bottom of the workbench 1 is provided with feet 17 to level the workbench 1. The workbench 1 supports the grinding and polishing machine in the grinding and polishing station 11, the cleaning machine in the cleaning station 12, the milling machine in the milling station, the three-dimensional moving mechanism 2 and other components, and can also be used for related operations. In this embodiment, the worktable 1 may be provided with an upper sample holder 18 and a lower sample holder 19 at both ends. The upper sample holder 18 can hold multiple metallographic samples to be ground, which are adapted to the sample clamping mechanism 3. The lower sample holder 19 can hold multiple polished samples that are adapted to the sample clamping mechanism 3. For example, in this embodiment, the sample clamping mechanism 3 can clamp three metallographic samples to be ground at the same time. Both the upper sample holder 18 and the lower sample holder 19 can be a disc structure. The disc structure can be provided with three spaced and evenly arranged sample slots along its circumference. The opening of the sample slots faces the outer edge of the disc structure so that the sample slots can slide in from the opening. This is especially convenient for the metallographic samples to be ground located in the three sample slots. When the sample clamping mechanism 3 clamps them, the position can be adjusted accordingly to complete the clamping. Of course, the worktable 1 may also be provided with a milling station for milling the samples.

[0020] The three-dimensional moving mechanism 2 is set on the worktable 1.

[0021] Specifically, the fixed end of the three-dimensional moving mechanism 2 can be fixedly installed on the worktable 1 and move in three dimensions on the worktable 1. This enables the three-dimensional displacement of the sample clamping mechanism 3 and the replacement shovel 9. In particular, it can drive the sample clamping mechanism 3 and the replacement shovel 9 to move laterally (left and right, forward and backward, and up and down), thereby enabling the sample clamping mechanism 3 to clamp and polish the sample below, as well as to replace the abrasive 7. In this embodiment, the worktable 1 can also be equipped with a cable chain (not shown in the figure). The fixed end of the cable chain can be installed on the worktable 1. The cable chain can be flexibly bent to adjust its position as the three-dimensional moving mechanism 2 moves laterally.

[0022] The sample clamping mechanism 3 is set at the execution end of the three-dimensional moving mechanism 2. It is used to move in three dimensions under the drive of the three-dimensional moving mechanism 2 to simultaneously grab multiple metallographic samples to be ground and drive multiple metallographic samples to be ground to move to each grinding and polishing station 11, drive the metallographic samples to be ground to rotate, so as to cooperate with the rotating abrasive 7 to grind and polish the metallographic samples to be ground.

[0023] Specifically, the sample clamping mechanism 3 is located at the execution end of the three-dimensional moving mechanism 2. Driven by the three-dimensional moving mechanism 2, it can be adjusted in three dimensions, specifically moving to the upper sample holder 18 on the worktable 1. It can simultaneously clamp multiple metallographic samples to be ground on the upper sample holder 18 and drive these samples to move synchronously to the polishing station 11, the cleaning station 12, and the lower sample holder 19. Polishing, cleaning, and unloading can then be performed sequentially. After polishing and cleaning, multiple metallographic samples are lowered onto the lower sample holder 19, completing the simultaneous polishing of multiple samples. In this embodiment, the sample clamping mechanism 3 can drive the metallographic samples to rotate when they move to the polishing station 11, ensuring uniform polishing and improving polishing effect and efficiency.

[0024] One side of workbench 1 (e.g.) Figure 1 The front side (as shown) may also be provided with a sample holder 4 for placing metallographic samples to be ground.

[0025] Specifically, the sample holder 4 can be installed on one side of the workbench 1 to place metallographic samples to be ground. In particular, it can be classified and stored according to the metallographic samples to be ground so that samples of the same type can be processed by the same grinding and polishing process. For example, in this embodiment, the sample holder 4 is provided with multiple rows of sample holes, taking three rows as an example, but other rows are also possible. The samples can be classified and placed according to the grinding and polishing process. That is to say, samples of the same grinding and polishing process can be placed in the same row for easy differentiation.

[0026] The robotic arm 5 is positioned between the sample holder 4 and the worktable 1 to grab the metallographic sample to be ground on the sample holder 4 and transfer the metallographic sample to be ground one by one to the sample holder 18 on the worktable 1.

[0027] Specifically, the robotic arm 5 can be installed between the sample holder 4 and the worktable 1, and can grab the metallographic samples to be ground one by one, especially the metallographic samples to be ground on the sample holder 4, and drive the grabbed metallographic samples to be ground to move, in particular, it can move the metallographic samples to be ground one by one into the sample slot of the upper sample holder 18.

[0028] In this embodiment, each grinding and polishing station 11 can be provided with an abrasive support mechanism 6. The abrasive 7 is provided on the abrasive support mechanism 6. The abrasive support mechanism 6 is used to support and lift the abrasive 7 so that when the abrasive 7 is replaced, the abrasive 7 can be lifted to the support station for replacement.

[0029] Specifically, each polishing station 11 can be equipped with an abrasive support mechanism 6, which can support and lift the abrasive 7. When replacing the abrasive 7, it can be lifted to a preset replacement height for replacement. In this embodiment, a rotary drive seat can be provided at the polishing station 11, and the abrasive support mechanism 6 can be mounted on the rotary drive seat. The rotary drive seat can be rotated to drive the abrasive 7 to rotate during polishing, thus achieving the polishing process on the workpiece. The polishing station 11 also provides an abrasive 7 clamping device, which is rotatably mounted on the worktable 1. It is used to clamp the abrasive 7 during polishing to prevent vibration, and can be rotated to one side when replacing the abrasive 7 to avoid interfering with its lifting.

[0030] See also Figure 1 The workbench 1 is also equipped with a layered grinding and polishing consumable storage rack 8, which is set on the workbench 1 in a position-adjustable manner along the vertical direction. It is used to support the abrasive 7 in layers, so that when the abrasive 7 is replaced, the layered grinding and polishing consumable storage rack 8 can be moved to the top of the workbench 1.

[0031] Specifically, the layered polishing consumables storage rack 8 is vertically and position-adjustable at the consumables storage station 13, allowing for separate support of the abrasives 7, i.e., layered support, with each layer supporting one abrasive 7, facilitating abrasive 7 replacement. Each storage layer of the layered polishing consumables storage rack 8 can support both new and old abrasives 7. The layered polishing consumables storage rack 8 is vertically and position-adjustable on the worktable 1. The worktable 1 may be equipped with guide and limiting components to guide the vertical movement of the layered polishing consumables storage rack 8, allowing it to move upwards to the top of the worktable 1 for abrasive 7 replacement. Specifically, it allows old abrasives to be removed from the polishing station 11 and placed onto the layered polishing consumables storage rack 8, and new abrasives to be removed from the layered polishing consumables storage rack 8 and moved to the polishing station 11, thus achieving abrasive 7 replacement. After the abrasive 7 is replaced, the layered grinding and polishing consumable storage rack 8 can be moved down to below the worktable. The old material can be removed and the new material can be loaded from below the worktable by equipment or manual operation. This avoids interference between the loading and unloading of old and new materials on the layered grinding and polishing consumable storage rack 8 and other operations on the worktable. This allows related operations on the worktable, such as grinding and polishing, to be carried out simultaneously with the loading and unloading of old and new materials on the layered grinding and polishing consumable storage rack 8, thereby improving the efficiency of grinding and polishing.

[0032] The actuator of the three-dimensional moving mechanism 2 is also equipped with a replacement shovel 9, which is used to move under the drive of the three-dimensional moving mechanism 2 to insert under the abrasive 7 and drive the abrasive 7 to move, so as to replace the abrasive 7.

[0033] Specifically, the replacement shovel 9 can be fixedly installed on the execution end of the three-dimensional moving mechanism 2. It can move to the workstation where the abrasive 7 is located, especially the grinding and polishing workstation 11. It can lift the abrasive 7 through the abrasive support mechanism 6 supporting it below, so that the abrasive 7 is lifted to the preset replacement height, i.e., the replacement workstation. The three-dimensional moving mechanism 2 drives the replacement shovel 9 to move from the left side of the abrasive 7 to the right, to the bottom of the abrasive 7, and insert it into the abrasive support mechanism 6. Under the drive of the three-dimensional moving mechanism 2, the replacement shovel 9 moves upward to lift the abrasive 7, so that the abrasive 7 and the abrasive 7 are aligned. The abrasive support mechanism 6 separates in the height direction, that is, the abrasive 7 is changed from being supported on the abrasive support mechanism 6 to being supported on the replacement shovel 9. Under the drive of the three-dimensional moving mechanism 2, the replacement shovel 9 moves the abrasive 7 supported on it in the three-dimensional direction to the corresponding position at the layered polishing consumable storage rack 8. The abrasive 7 supported on the replacement shovel 9, i.e. the old material, can be placed on the layered polishing consumable storage rack 8. New material can be taken off from the layered polishing consumable storage rack 8 and moved and placed on the abrasive support mechanism 6 to complete the replacement of the abrasive 7. In this embodiment, the replacement shovel 9 can be U-shaped, with its U-shaped groove providing clearance for the abrasive support mechanism 6 supporting the abrasive 7. This allows the two side support plates on either side of the replacement shovel 9 to be inserted from below the lifting plate of the abrasive support mechanism 6 to the front and rear sides of the lifting rod supported below the lifting plate when the lifting plate raises the abrasive 7 to the preset replacement height. Furthermore, the width of the U-shaped groove can be greater than the outer diameter of the lifting plate, so that under the drive of the three-dimensional moving mechanism 2, the replacement shovel 9 can move from below the lifting plate to above it, allowing the abrasive 7 to be displaced and supported on the replacement shovel 9 and separated from the lifting plate, thereby moving the abrasive 7 for replacement. The preset replacement height can be a certain height distance from the worktable 1, especially greater than the thickness of the replacement shovel 9.

[0034] In this embodiment, the replacement shovel 9 is rotatably mounted on the execution end of the three-dimensional moving mechanism 2, and is used to switch between a gripping support state and a yielding state, so that when changing the abrasive 7, the replacement shovel 9 can be switched to such a state. Figure 1The gripping and supporting state shown is horizontally arranged and facing right to achieve gripping and supporting of the abrasive 7. After replacement, it can be switched to a yielding state, for example, it can be rotated to a vertical cubic position to avoid interfering with the operation of other equipment on the worktable, especially grinding and polishing operations. Of course, the replacement shovel 9 can also be set on the execution end of the three-dimensional moving mechanism 2 in a way that allows it to move up and down relative to the sample clamping mechanism 3, thereby enabling position switching. In particular, when replacing the abrasive 7, the replacement shovel 9 can move downward to avoid interference between the sample clamping mechanism 3 and the worktable 1 surface, and it can move upward during grinding and polishing to avoid interfering with the grinding and polishing operations.

[0035] In this embodiment, the layered grinding and polishing consumable storage rack 8 is connected to a vertical lifting drive mechanism (not shown in the figure), which drives the layered grinding and polishing consumable storage rack 8 to lift and lower, thereby switching the position of the layered grinding and polishing consumable storage rack 8. It can be switched to the upper part of the worktable for replacing the abrasive 7, or switched to the lower part of the worktable to remove the old material and place new material for the next replacement. In this embodiment, the power output end of the vertical lifting drive mechanism can be connected to the bottom end of the layered grinding and polishing consumable storage rack 8, that is, the vertical lifting drive mechanism is located below the worktable. This simplifies the structure above the worktable, avoiding interference with operations on the worktable. Preferably, the vertical lifting drive mechanism may also be provided with a positioning component (not shown in the figure) to position the height of the vertical lifting drive mechanism, thereby ensuring that the vertical lifting drive mechanism can be raised to the corresponding position to facilitate the replacement of the shovel 9 and the abrasive 7. Of course, the positioning component can also be connected to the vertical lifting drive mechanism to achieve the height positioning of the vertical lifting drive mechanism. The vertical lifting drive mechanism can be a linear module or other drive components such as telescopic cylinders, etc., and no limitation is made on it in this embodiment.

[0036] It can be seen that the layered grinding and polishing consumable storage rack 8 provides layered support for the abrasive 7, especially allowing for independent support. The three-dimensional moving mechanism 2 drives the replacement shovel 9 to move to the workstation where the abrasive 7 is located, especially the grinding and polishing workstation 11. The abrasive 7 is then lifted by the abrasive support mechanism 6 below it, reaching a preset replacement height. The three-dimensional moving mechanism 2 drives the replacement shovel 9 to move from the left side of the abrasive 7 to the right, placing it below the abrasive 7 and inserting it into the abrasive support mechanism 6. Driven by the three-dimensional moving mechanism 2, the replacement shovel 9 moves upwards to lift the abrasive 7, causing it to separate from the abrasive support mechanism 6 in the height direction, thus completing the grinding process. The abrasive material 7, which was previously supported on the abrasive support mechanism 6, is now supported on the replacement shovel 9 to accurately grasp the grinding disc. Driven by the three-dimensional moving mechanism 2, the replacement shovel 9 moves the abrasive material 7 supported on it in three dimensions to the corresponding position at the layered grinding and polishing consumable storage rack 8. The old abrasive material 7 supported on the replacement shovel 9 is then placed on the layered grinding and polishing consumable storage rack 8. New material can be taken from the layered grinding and polishing consumable storage rack 8 and moved and placed on the abrasive support mechanism 6 to complete the replacement of the abrasive material 7. The replacement is simple and quick, greatly improving work efficiency and solving the problem of high labor costs and low grinding and polishing efficiency caused by the manual replacement of the existing abrasive material 7.

[0037] In addition, since the abrasive 7 is circular, if it is not concentric with the abrasive support mechanism 6 below after installation, it will cause eccentric rotation, which will not only damage the equipment, but also result in poor grinding effect and affect the accuracy of the test. Replacing the abrasive 7 by replacing the shovel 9 can achieve precise positioning compared to manual installation, ensuring that the abrasive 7 is coaxially set on the abrasive support mechanism 6 after replacement, avoiding damage to the equipment, and improving the grinding effect and test accuracy.

[0038] In this embodiment, the three-dimensional moving mechanism 2 may include: a Y-axis moving component 22, an X-axis moving component 21, and a Z-axis moving component 23; wherein, the X-axis moving component 21 is disposed on the power output end of the Y-axis moving component 22, and the Z-axis moving component 23 is disposed on the power output end of the Y-axis moving component 22, and is used to move longitudinally back and forth with the X-axis moving component 21 under the drive of the Y-axis moving component 22, and to move laterally left and right relative to the Y-axis moving component 22 under the action of the X-axis moving component 21, and can also move vertically, so as to drive the changing shovel 9 and the sample clamping mechanism 3 to move in three-dimensional direction.

[0039] Specifically, the fixed part of the Y-axis moving assembly 22 is fixedly installed on the worktable 1, and can be placed above the worktable surface to serve as a longitudinal forward and backward movement drive, i.e., the Y-axis (e.g., Figure 1The movement drive (perpendicular to the paper plane) can drive the X-axis movement component 21 and the Z-axis movement component 23 to move longitudinally, i.e., along the Y-axis. The fixing part of the X-axis movement component 21 can be fixedly installed on the execution part, i.e., the power output end, of the Y-axis movement component 22, and can move along the Y-axis as a whole under the driving action of the Y-axis movement component 22, and also serve as the lateral left and right, i.e., the X-axis (as shown). Figure 1 The Z-axis moving component 23 is driven by the horizontal direction shown in the figure to move along the X-axis. The fixed part of the Z-axis moving component 23 can be fixedly mounted on the actuator, i.e., the power output end, of the X-axis moving component 21. Under the driving action of the Y-axis moving component 22, it moves longitudinally back and forth, and under the driving action of the X-axis moving component 21, it can move laterally left and right, realizing XY-axis movement. It can also be used as the vertical direction, i.e., the Z-axis (as shown in the figure). Figure 1 The vertical motion drive (as shown) drives the replacement shovel 9 and the sample clamping mechanism 3 to move along the Z-axis, thereby realizing the three-dimensional motion of the replacement shovel 9 and the sample clamping mechanism 3.

[0040] In this embodiment, there are two Y-axis moving components 22, located at both ends of the worktable 1 and arranged longitudinally along the worktable 1. A portal frame is provided on the worktable 1, with its crossbeam arranged laterally. The bottom ends of the two vertical rods are respectively located on the power output ends of the two Y-axis moving components 22. The X-axis moving component 21 is located on the crossbeam of the portal frame, and the Z-axis moving component 23 is located on the power output end of the X-axis moving component 21. The X-axis moving component 21 can drive the Z-axis moving component 23 to reciprocate linearly along the length of the crossbeam of the portal frame. The X-axis moving component 21 and Y-axis moving components 22 are linear modules, which can be synchronous belt type linear modules, lead screw type linear modules, or linear motor type modules; no limitation is made in this embodiment. The Z-axis moving component 23 is a telescopic rod, such as a cylinder or hydraulic cylinder, or other telescopic rods; no limitation is made in this embodiment.

[0041] See Figure 2 This is a schematic diagram of the sample clamping mechanism 3 provided in this embodiment of the present invention. As shown in the figure, the device includes: a support 31, a sample clamping assembly 32, and a center floating compensation assembly 33.

[0042] The bracket 31 can serve as a support, mainly supporting the sample clamping assembly 32, the center floating compensation assembly 33, the drive assembly 35, etc. It can be fixedly installed on the power output end of the three-dimensional moving mechanism 2, or it can be installed on the power output end of the three-dimensional moving mechanism 2 in this way. In this embodiment, no limitation is made on it.

[0043] The sample clamping assembly 32 is rotatably mounted on the support 31. The sample clamping assembly 32 has at least three jaw bodies 321 along its circumference, which are used to clamp the metallographic sample 10 to be ground, which corresponds to the jaw body 321.

[0044] Specifically, the sample clamping assembly 32 is rotatably mounted below the support 31 (relative to...). Figure 2 (As shown in the diagram), the sample clamping assembly 32 can be connected to a driving assembly 35 to drive the sample clamping assembly 32 to rotate, and can also drive the center floating compensation assembly 33 set on the sample clamping assembly 32 to rotate, so that the sample clamping assembly 32 and the center floating compensation assembly 33 rotate synchronously. In this embodiment, the driving assembly 35 can be set above the bracket 31, the fixing seat can be fixedly installed on the bracket 31, and the power output end can be rotatably passed through the bracket 31 and fixedly connected to the sample clamping assembly 32 below, so as to realize the driving of the rotation of the sample clamping assembly 32. The sample clamping assembly 32 can be a pneumatic gripper, which has at least three gripper bodies 321, and synchronous clamping and releasing are achieved by pneumatic control. The sample clamping assembly 32 can also be other clamping mechanisms, and no limitation is made on them in this embodiment. In this embodiment, a slip ring, which can be a pneumatic slip ring 36, can be provided between the sample clamping assembly 32 and the support 31. The fixing part 361 of the pneumatic slip ring 36 is fixedly installed on the support 31, and the rotating part 362 can be fixedly installed on the sample clamping assembly 32 to facilitate the connection between the air passage on the sample clamping assembly 32 and the air source on the support 31, avoiding the entanglement of the air tube due to the rotation of the sample clamping assembly 32. In this embodiment, the power output end of the drive assembly 35 and the sample clamping assembly 32 can also be connected through the rotating part 362 of the pneumatic slip ring 36. The fixing part 361 of the pneumatic slip ring 36 is fixedly installed on the support 31 for support, which can realize the conduction of the air passage and also realize the rotational transmission between the drive assembly 35 and the sample clamping assembly 32. In other embodiments, the power output end of the drive assembly 35 may be inserted through the pneumatic slip ring 36 and connected to the sample clamping assembly 32. The rotating part 362 of the pneumatic slip ring 36 is connected to the power output end of the drive assembly 35 or the sample clamping assembly 32 to achieve synchronous rotation.

[0045] The central floating compensation component 33 is disposed on the sample clamping component 32 and located between multiple jaw bodies 321. It is used to perform position compensation on the metallographic sample 10 to be ground, which is placed between the central floating compensation component 33 and the jaw bodies 321, based on the cooperation of the jaw bodies 321, so as to clamp the multiple metallographic samples 10 to be ground respectively.

[0046] Specifically, the central floating compensation component 33 can be disposed below the sample clamping component 32 and located at the center of the sample clamping component 32. Based on the outer contour of multiple metallographic samples 10 to be ground, and in conjunction with multiple jaw bodies 321, it can perform position compensation for the metallographic samples 10 to be ground placed between the central floating compensation component 33 and the jaw bodies 321. In particular, it can float and shift towards the position of the smaller metallographic sample 10 to be ground, i.e., position compensation, thereby enabling the synchronous clamping of multiple metallographic samples 10 to be ground. Of course, if the multiple metallographic samples 10 to be ground are of the same size, the central floating compensation component 33 is located at the center of the sample clamping component 32, i.e., at the center of the multiple jaw bodies 321, without floating and shifting. The metallographic samples 10 to be ground placed between the central floating compensation component 33 and the jaw bodies 321 can be clamped separately by the synchronous opposite movement of the multiple jaw bodies 321. Each metallographic sample 10 to be ground is clamped between the corresponding jaw body 321 and the central floating compensation component 33.

[0047] In this embodiment, to avoid uneven polishing or even jamming of the metallographic sample 10 due to process fluctuations in the grinding disc, a polishing compensation component 34 is provided between the sample clamping assembly 32 and the power output end of the drive assembly 35. This component compensates for process deviations in the polishing of the metallographic sample 10 and the grinding disc, allowing the sample clamping assembly 32 to fluctuate up and down with the process deviations of the grinding disc, thus preventing uneven polishing and jamming. Specifically, the fixed end of the polishing compensation component 34 can be fixedly installed on the power output end of the drive assembly 35 or the rotating part 362 of the slip ring. The actuator is connected to the sample clamping assembly 32 to drive the sample clamping assembly 32 to perform vertical displacement compensation relative to the power output end of the drive assembly 35 or the rotating part 362 of the slip ring.

[0048] Of course, other methods can also be used for vertical displacement compensation. For example, a pressure supplement component (not shown in the figure) can be provided between the support 31 and the power output end of the three-dimensional moving mechanism 2 to compensate for the downward pressure of the metallographic sample 10 held by the sample clamping component 32 pressing down on the abrasive 7, so as to ensure that the downward pressure between the metallographic sample 10 and the abrasive 7 is maintained at a preset pressure. That is, the process deviation of the grinding disc and the grinding of the metallographic sample 10 can both keep the downward pressure between the metallographic sample 10 and the abrasive 7 at the preset pressure, thereby ensuring the uniformity of grinding. The preset pressure can be determined according to the actual situation, and no limitation is made on it in this embodiment. The fixed end of the pressure supplement component can be fixedly installed on the clamping execution part of the grinding and polishing system, and the power output end can be connected to the support 31 to drive the sample clamping mechanism 3 to move vertically based on the downward pressure between the metallographic sample 10 and the abrasive 7, so as to realize displacement compensation and downward pressure compensation.

[0049] See also Figure 1 The polishing compensation component 34 may include: a fixed support plate 341, a floating support ring 342, and at least three auxiliary support columns 343; wherein, the floating support ring 342 is disposed on one side of the fixed support plate 341; at least three auxiliary support columns 343 are arranged at intervals along the circumference of the fixed support plate 341, each auxiliary support column 343 is slidably inserted through the fixed support plate 341, the connecting end of each auxiliary support column 343 is connected to the floating support ring 342, the floating end is connected to the sample clamping component 32, and a floating spring 344 is sleeved on the outer periphery of each auxiliary support column 343. The floating spring 344 is placed between the floating support ring 342 and the fixed support plate 341, and is used to float axially when the metallographic sample 10 to be polished held by the sample clamping component 32 is polished with the grinding disc, so as to achieve axial downward pressure compensation.

[0050] Specifically, the drive assembly 35, floating support ring 342, fixed support plate 341, slip ring, and sample clamping assembly 32 can all be arranged coaxially, from top to bottom as drive assembly 35, slip ring, and sample clamping assembly 32. The fixed support plate 341 can be coaxially fixedly mounted on the power output end of the drive assembly 35 or on the rotating part 362 of the slip ring. In this embodiment, the fixed support plate 341 is fixedly mounted on the bottom end face of the rotating part 362 of the slip ring. The fixed support plate 341 can be provided with several mounting through holes along its axial direction, each corresponding to an auxiliary support column 343. Each mounting through hole can be provided with a guide tube seat 345, through which the auxiliary support column 343 can slidably pass. The guide tube seat 345 guides the up-and-down floating of the auxiliary support column 343. The floating support ring 342 can be coaxially arranged above the fixed support plate 341 and sleeved on the outer periphery of the sliding ring. The top ends of the auxiliary support columns 343 are all connected to the floating support ring 342, and the bottom ends are all connected to the sample clamping assembly 32. In this embodiment, a floating spring 344 is sleeved on the outer periphery of each auxiliary support column 343 between the fixed support plate 341 and the floating support ring 342. The distance between the fixed support plate 341 and the floating support ring 342 can be elastically adjusted to adjust the vertical height position of the sample clamping assembly 32, thereby achieving vertical position compensation. That is, when there is a jump on the surface of the abrasive 7, such as a protrusion, when the metallographic sample 10 to be ground held by the sample clamping assembly 32 rotates to the protrusion, the metallographic sample 10 to be ground and the sample clamping assembly 32 can move upward under the thrust of the protrusion to push the auxiliary support column 343 and the floating support ring 342. As the sample holder moves upward, the floating spring 344 will stretch. When it rotates to the groove, the floating spring 344 can be compressed, allowing the auxiliary support column 343 and the floating support ring 342 to move downward along with the metallographic sample 10 to be ground and the sample clamping assembly 32. In other words, the auxiliary support column 343 can slide through the fixed support plate 341. In conjunction with the floating spring 344, compared with the fixed installation of the sample clamping assembly 32, the auxiliary support column 343 and the floating support ring 342 can float up and down, thereby allowing the metallographic sample 10 to be ground and the sample clamping assembly 32 to follow the process deviation of the abrasive 7 and the sample grinding and polishing, thus achieving compensation.

[0051] In this embodiment, the sample clamping assembly 32 has a plurality of radially arranged sliding grooves on its clamping body. Each sliding groove corresponds to a gripper body 321, and the gripper body 321 is slidably connected to the clamping body along the length of the sliding groove, allowing it to move towards or away from the center of the clamping body. This, in conjunction with the center floating compensation assembly 33, clamps or releases the metallographic sample 10 to be ground. Multiple gripper bodies 321 can move synchronously, i.e., synchronously move towards or away from the center of the clamping body, achieving synchronous clamping or releasing of multiple metallographic samples 10 to be ground.

[0052] See Figures 3 to 5 The figure illustrates a preferred structure of the central floating compensation component 33 provided in an embodiment of the present invention. As shown, the central floating compensation component 33 includes: a compensation support plate 331, a floating clamping member 332, and at least three reset connecting members 333.

[0053] The compensation support plate 331 serves a supporting function to support the floating clamping member 332 and at least three reset connecting members 333. Specifically, the compensation support plate 331 can be coaxially arranged with the sample clamping assembly 32 and fixedly mounted on the bottom wall of the sample clamping assembly 32 by bolts. A circumferential floating compensation hole 3311 can be provided at the center of the compensation support plate 331 to provide space for horizontal position adjustment of the floating clamping member 332. The outer edge of the compensation support plate 331 is provided with a plurality of clearance grooves 3312 corresponding one-to-one with the gripper body 321, for clearance of the sliding of the gripper body 321. In this embodiment, the support surface of the compensation support plate 331 (e.g., Figure 3 The top wall shown is provided with a mounting groove 3313, which is connected to the circumferential floating compensation hole 3311. It is used to support and allow the reset connector 333 to be installed in the mounting groove 3313, avoiding interference with the sample clamping assembly 32, and making the device compact.

[0054] The floating clamp 332 is positioned on the compensation support plate 331 in a position-adjustable manner, and is used to perform position compensation on the sample placed between the central floating compensation component 33 and the clamp body 321 based on the metallographic sample 10 to be ground and the clamp body 321.

[0055] Specifically, the floating clamp 332 is positioned along the surface of the compensation support plate 331 (e.g., Figure 3 The horizontal plane shown is set on the compensation support plate 331 in a position-adjustable manner. That is, based on the outer contour of multiple metallographic samples 10 to be ground, the position of multiple gripper bodies 321 can be adjusted in various directions on the horizontal plane. In particular, the position can be adjusted within the range of the circumferential floating compensation hole 3311. For example, it can be moved toward the position of the smaller or narrower metallographic sample 10 to be ground. This can not only reduce the space of the smaller or narrower metallographic sample 10 to be ground, but also increase the space of the larger metallographic sample 10 to be ground. That is, the position of the sample placed between the central floating compensation component 33 and the gripper body 321 is compensated, and then the multiple gripper bodies 321 can be used to realize the separate synchronous clamping of multiple metallographic samples 10 to be ground.

[0056] At least three reset connectors 333 are arranged in a radiating pattern along the circumference of the floating clamp 332 on the outer periphery of the floating clamp 332. Each reset connector 333 is connected at both ends to the floating clamp 332 and the compensation support plate 331, respectively, to apply an elastic reset force to the floating clamp 332 so that the floating clamp 332 is reset to the center position of the multiple gripper bodies 321 when it is in a free state.

[0057] Specifically, at least three reset connectors 333 are arranged in a radiating pattern around the outer periphery of the floating clamp 332. Each reset connector 333 can be arranged radially along the compensation support plate 331 and can apply a radial elastic force to the floating clamp 332. When the floating clamp 332 shifts in the horizontal plane, the multiple reset connectors 333 are stretched or compressed and a radial elastic force is applied to the floating clamp 332. Under the multiple radial elastic forces, the floating clamp 332 can be reset to the center position of the compensation support plate 331 in a free state.

[0058] In this embodiment, a bearing 334 is provided between the floating clamping member 332 and the compensating support plate 331. Rolling friction replaces sliding friction to reduce the frictional force between the floating clamping member 332 and the compensating support plate 331 during relative movement. Specifically, the floating clamping member 332 may be provided with a locking groove to lock and limit the bearing 334, thereby reducing the frictional force between the floating clamping member 332 and the compensating support plate 331 during relative movement by using rolling friction instead of sliding friction.

[0059] See also Figures 2 to 4 The floating clamping component 332 includes: a floating block 3321, a connecting rod 3322, and a clamping plate 3324.

[0060] The floating block 3321 has several clamping grooves 33211 in its circumferential direction that correspond one-to-one with the gripper body 321, which are used to limit the position of the metallographic sample 10 to be ground so as to cooperate with the gripper body 321 for clamping.

[0061] Specifically, the floating block 3321 can be a cylindrical structure with several clamping grooves 33211 on the bottom circumferentially corresponding to the gripper body 321. The clamping grooves 33211 are right-angled grooves that can clamp the metallographic sample 10 to be ground, which has a cuboid structure, so that one corner of the metallographic sample 10 to be ground is locked and limited in the clamping groove 33211. Of course, the metallographic sample 10 to be ground can also be supported in the clamping groove 33211. Furthermore, the two vertical sides of the metallographic sample 10 to be ground abut against the two groove walls of the clamping groove 33211, and the other side opposite to the side between the two vertical sides abut against the clamping wall of the gripper body 321, thereby achieving the clamping of the metallographic sample 10 to be ground. Of course, the two opposite sides of the metallographic sample 10 to be ground, i.e., the right-angled sides, can be clamped to the clamping groove 33211 and the gripper body 321 respectively. The clamping walls of the gripper body 321 may be provided with anti-slip textures to improve the clamping friction and enhance the stability of the metallographic sample 10 to be ground. The clamping walls of the gripper body 321 may also be provided with locking grooves to lock the edges and corners of the metallographic sample 10 to be ground. The outer diameter of the floating block 3321 is larger than the diameter of the circumferential floating compensation hole 3311, which allows the floating block 3321 to be limited to below the compensation support plate 331.

[0062] The connecting rod 3322 is set on the top of the floating block 3321. The compensation support plate 331 is provided with a circumferential floating compensation hole 3311. The connecting rod 3322 is inserted through the circumferential floating compensation hole 3311 in a manner that allows for position adjustment within the circumferential floating compensation hole 3311. This is used to adjust the horizontal support position of the floating block 3321 and achieve position offset compensation.

[0063] Specifically, the top of the floating block 3321 is provided with a connecting rod 3322. The connecting rod 3322 can be a screw structure, which is an integral structure with the floating block 3321, or it can be connected in other ways, such as by welding. The connecting rod 3322 passes through the circumferential floating compensation hole 3311, and the position of the connecting rod 3322 on the horizontal plane can be adjusted within the circumferential floating compensation hole 3311, that is, it can be offset in various directions within the hole. The circumferential floating compensation hole 3311 limits the position of the connecting rod 3322.

[0064] The clamping plate 3324 is detachably mounted on the connecting rod 3322. The clamping plate 3324 and the floating block 3321 are respectively placed on both sides of the compensation support plate 331 to connect the reset connector 333 so as to drive the floating block 3321 to reset.

[0065] Specifically, the clamping plate 3324 is detachably mounted on the connecting rod 3322. The clamping plate 3324 has a circular structure, and its outer diameter is larger than the diameter of the circumferential floating compensation hole 3311. This allows the clamping plate 3324 to be positioned above the compensation support plate 331, enabling the installation and vertical positioning of the floating clamping member 332 and the compensation support plate 331. In other words, the connecting rod 3322 can only be adjusted in position relative to the compensation support plate 331 within the circumferential floating compensation hole 3311, and is axially fixed by the floating block 3321 and the clamping plate 3324. In this embodiment, the clamping plate 3324 has a mounting through hole that fits the connecting rod 3322 and is sleeved on the connecting rod 3322, thus connecting the two. There are two bearings 334, which are respectively set between the clamping plate 3324 and the compensation support plate 331, and between the floating block 3321 and the compensation support plate 331. The bottom wall of the clamping plate 3324 and the top wall of the floating block 3321 can be provided with locking grooves to lock and limit the bearings 334.

[0066] In this embodiment, the connecting rod 3322 is on the side of the clamping plate 3324 facing away from the floating block 3321 (e.g., Figure 3 The upper side (as shown) is detachably connected to a limiting block 3323, which is used to limit the floating block 3321 and the clamping plate 3324 to be installed on the connecting rod 3322. Specifically, the limiting block 3323 can be a limiting nut, which is threadedly connected to the connecting rod 3322, and can limit and clamp the clamping plate 3324 and the compensation support plate 331 between the limiting block 3323 and the floating block 3321.

[0067] See also Figure 2 and Figure 4 The reset connector 333 includes: two connecting posts 3331 and a tension spring 3332; wherein, the two connecting posts 3331 are respectively connected to the compensation support plate 331 and the floating clamp 332; the tension spring 3332 is connected to the two connecting posts 3331 at both ends, and is used to deform as the horizontal position of the floating clamp 332 is adjusted and to apply an elastic reset force to the connecting posts 3331, so as to pull the floating clamp 332 to reset when the floating clamp 332 is in a free state.

[0068] Specifically, the two connecting columns 3331 can be arranged radially along the compensation support plate 331 and connected to the compensation support plate 331 and the clamping plate 3324 respectively. The tension springs 3332 can be arranged radially along the compensation support plate 331, with both ends connected to the two connecting columns 3331 respectively. When the clamping plate 3324 adjusts its horizontal position with the floating block 3321, the multiple tension springs 3332 deform, for example, partially compressed and partially stretched, and apply a radial elastic restoring force to the connecting columns 3331, thereby allowing the floating block 3321 to be in a free state and reset.

[0069] It can be seen that the sample clamping mechanism 3 moves synchronously through at least three gripper bodies 321 on the sample clamping assembly 32, either moving towards each other or away from each other. Through the cooperation of the central floating compensation assembly 33 and the gripper bodies 321, the position compensation of the metallographic samples 10 to be ground is performed based on the outer contour of multiple metallographic samples 10 to be ground, which are placed between the central floating compensation assembly 33 and the gripper bodies 321. This allows for offset and position compensation. Furthermore, through the cooperation of the central floating compensation assembly 33 and multiple gripper bodies 321, multiple metallographic samples 10 to be ground are clamped synchronously and separately. This allows for the simultaneous clamping of metallographic samples 10 of different specifications, improving grinding and polishing efficiency. Especially when grinding or polishing samples, the sample clamping mechanism 3 can automatically grab the sample, automatically adapt to the size of the sample, keep the sample on the same plane, and maintain the stability of the sample during rotation. This achieves high-speed and high-efficiency grinding, with good sample uniformity, improving the accuracy of detection. It solves the problem that the flatness of the sample is different and the grinding effect is poor when the sample is manually polished after being mounted. Meanwhile, the device has a simple structure, good grinding effect, and high grinding efficiency.

[0070] See Figure 6 This is a schematic diagram of the structure of the layered polishing consumables storage rack 8 provided in this embodiment of the utility model. As shown in the figure... The layered grinding and polishing consumables storage rack 8 includes: a support rod 81 and at least two storage plates 82; wherein, multiple storage plates 82 are coaxially and spaced apart on the support rod 81, for storing the abrasive 7 separately, i.e., storing them one by one.

[0071] Specifically, each storage plate 82 is fixedly mounted on a support rod 81. Multiple storage plates 82 are coaxially spaced and spaced apart. A partition column can also be provided between any two adjacent storage plates 82 to ensure the stability of the support. Alternatively, multiple support rods 81 can be arranged circumferentially along the outer edge of the storage plates 82 to support multiple storage plates 82. Of course, the storage plates 82 can also be arranged axially along the support rod 81 (e.g., ...). Figure 6The storage plates 82 (vertically shown) are slidably mounted on the support rod 81 to adjust the spacing between adjacent storage plates 82 to accommodate the thickness of the abrasive 7. The support rod 81 has several positioning supports (not shown in the figure) corresponding one-to-one with the storage plates 82. Each positioning support is located below its corresponding storage plate 82 and is connected to the support rod 81 along its axial direction in a position-adjustable manner. This allows the storage plates 82 to be adjusted to a suitable position for support and positioning, ensuring they are supported at a set spacing. For example, the outer wall of the support rod 81 may have external threads, and the storage plates 82 may have straight holes that fit the support rod 81, allowing them to be fitted onto the support rod 81 and slide up and down. The positioning supports can be support nut blocks, threaded to the external threads on the outer wall of the support rod 81, allowing for disassembly and position adjustment, thus supporting and positioning the storage plates 82. Multiple storage plates 82 can be used to increase the cycle of unloading old material and loading new material.

[0072] In this embodiment, the support rod 81 can be a telescopic rod structure, and its length can be adjusted based on the thickness and spacing of the storage plates 82. For example... Figure 7 As shown, the telescopic rod structure may include: a fixed section 811 and at least one sliding section 812; wherein, the sliding sections 812 are all disposed on one side of the fixed section 811 (e.g., Figure 7(As shown on the right), the first-stage sliding segment 812 is fitted inside the fixed segment 811, and its total length can be adjusted by sliding relative to the fixed segment 811. Any two adjacent sliding segments 812 can be slidably connected to each other to adjust the total length of the sliding segments 812. Specifically, to increase the range and stability of the length adjustment of the telescopic structure, those skilled in the art will understand that there can be two or more sliding segments 812. Both the fixed segment 811 and the sliding segment 812 are provided with multiple corresponding locking holes 813. The fixed segment 811 and the first-stage sliding segment 812 are connected by locking members 814 passing through the locking holes 813, and / or, any two adjacent sliding segments 812 are connected by locking members 814 passing through the locking holes 813. The fixed section 811 and both ends of the sliding section 812 are provided with several locking holes 813 along their length. The first-stage sliding section 812 and the fixed section 811 are locked together by locking members 814 on different locking holes 813 on the fixed section 811 and different locking holes 813 on the sliding section 812, so as to adjust the total length of the telescopic structure. Of course, the sliding sections 812 can also be adjusted in this way. Alternatively, the sliding end of the fixed section 811 is provided with one locking hole 813, one end of the sliding section 812 is provided with one locking hole 813, and the other end is provided with multiple locking holes 813. The locking holes 813 on the sliding end of the fixed section 811 and the ends of the sliding section 812 with multiple locking holes 813 are aligned to adjust the length. Of course, the fixed section 811 and the sliding section 812 can also be connected by threads, and the length can be adjusted by the threads. Taking two sections as an example, the outer wall of the fixed section 811 is provided with external threads, and the inner wall of the sliding section 812 is provided with internal threads that are compatible with the external threads. At the same time, the external threads on the outer wall of the fixed section 811 can also be threaded to the support nut block, and the outer wall of the sliding section 812 can also be provided with external threads, which can be adapted to connect the corresponding support nut block.

[0073] See also Figure 6 Each storage plate 82 can be a U-shaped structure, and the openings of the U-shaped structure face the same side (e.g., Figure 6(As shown, arranged to the left) so that the replacement shovel 9 can move up and down from the U-shaped groove 31, so that the abrasive 7 on the storage plate 82 or the replacement shovel 9 can be exchanged and supported, thereby changing the abrasive 7. In particular, the replacement shovel 9 can first move to the top of the storage plate 82. The replacement shovel 9 is positioned directly above the U-shaped clearance groove 821 of the storage plate 82. The three-dimensional moving mechanism 2 drives the replacement shovel 9 to move downward, so that the replacement shovel 9 moves from above the storage plate 82 to below, so that the abrasive 7 to be replaced supported on the replacement shovel 9 falls onto the storage plate 82. 2. Simultaneously, the replacement shovel 9 can first move to below the storage plate 82 supporting the new material, and be located directly below the U-shaped relief groove 821. The three-dimensional moving mechanism 2 drives the replacement shovel 9 to move upwards, so that the replacement shovel 9 moves from below the storage plate 82 to above it. This causes the new material supported on the storage plate 82 to move upwards with the replacement shovel 9 and be supported on the replacement shovel 9, i.e., the new material supported on the storage plate 82 is placed on the replacement shovel 9, and then moved with the replacement shovel 9 to the polishing station 11 to complete the replacement of the abrasive 7. The distance between the two side plates of the replacement shovel 9 is less than the width of the U-shaped relief groove 821 of the storage plate 82, so that the replacement shovel 9 can move up and down at the U-shaped relief groove 821 of the storage plate 82 to complete the switching of the abrasive 7 support, i.e., the switching between support on the replacement shovel 9 and the storage plate 82.

[0074] See also Figure 1 The abrasive support mechanism 6 includes a support ring 61 and a lifting plate 62. The lifting plate 62 is movably disposed on the inner circumference of the support ring 61 along the axial direction of the support ring 61. The lifting plate 62 can be lowered to the support position. The lifting plate 62 is flush with the top wall of the support ring 61. The abrasive 7 can be supported by the support ring 61 and the lifting plate 62 so that the workpiece to be polished can be polished by the abrasive 7. The lifting plate 62 can also drive the abrasive 7 it supports to rise to the replacement position so that the abrasive 7 can be replaced by the abrasive support mechanism 6.

[0075] Specifically, the support ring 61 can be fixedly installed on the rotary drive seat and placed at the polishing station 11. Its top wall can be slightly lower than the worktable surface or flush with it. The inner diameter of the support ring 61 can be adapted to the outer diameter of the lifting plate 62, and the outer diameter of the support ring 61 can be adapted to the outer diameter of the abrasive 7, so that the abrasive 7 can be supported as a whole by the support ring 61 and the lifting plate 62, ensuring the stability of the polishing of the abrasive 7. The bottom end of the lifting plate 62 is provided with a support rod 81 coaxially arranged with the lifting plate 62. The support rod 81 and the lifting plate 62 are movably arranged on the rotary drive seat along the axial direction of the support ring 61. The support rod 81 and / or the lifting plate 62 can be connected to a lifting drive (not shown in the figure). Under the driving action of the lifting drive, it moves along the axial direction of the support ring 61 and descends to the support position. The lifting plate 62 is flush with the top wall of the support ring 61, which can provide overall support for the abrasive 7 so that the workpiece to be polished can be polished by the abrasive 7. Under the driving action of the lifting drive, the lifting plate 62 can also drive the abrasive 7 it supports to rise to the replacement position so that the abrasive 7 can be replaced by the abrasive support mechanism 6.

[0076] In summary, the multi-station metallographic polishing system provided in this embodiment uses a three-dimensional moving mechanism 2 to drive a sample clamping mechanism 3 to move in three dimensions. The sample clamping mechanism 3 simultaneously clamps multiple metallographic samples to be polished and moves them to various polishing stations 11. The samples are then driven to rotate, cooperating with the rotating abrasive 7 to polish them, completing the metallographic polishing process. The entire polishing process requires no manual intervention, significantly reducing the workload of manual sample polishing while improving the time efficiency and utilization value of manual labor. This solves the problem of existing manual polishing of metallographic samples, which requires significant labor costs and affects work efficiency. The system automates the metallographic sample polishing function and stably and automatically prepares high-quality metallographic samples with contaminant-free, scratch-free surfaces and clear boundaries of non-metallic inclusions. This greatly reduces the error in sample result evaluation caused by manual sample preparation and improves the accuracy of subsequent testing results.

[0077] It should be noted that in the description of this utility model, the terms "upper", "lower", "left", "right", "inner", "outer", etc., indicating the direction or positional relationship are based on the direction or positional relationship shown in the drawings. This is only for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this utility model.

[0078] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0079] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A multi-station metallographic grinding and polishing system, characterized in that, include: A workbench, wherein the workbench is provided with several grinding and polishing stations; A three-dimensional moving mechanism is mounted on the worktable; The sample clamping mechanism is located at the execution end of the three-dimensional moving mechanism. It is used to move in three dimensions under the drive of the three-dimensional moving mechanism to simultaneously grab multiple metallographic samples to be ground and move multiple metallographic samples to be ground to each grinding and polishing station. It drives the metallographic samples to be ground to rotate so as to cooperate with the rotating abrasive to grind and polish the metallographic samples to be ground.

2. The multi-station metallographic grinding and polishing system according to claim 1, characterized in that, The sample clamping mechanism includes: support; The sample clamping assembly is rotatably mounted on the support. The sample clamping assembly has at least three jaw bodies along its circumference for clamping the metallographic sample to be ground, which corresponds to the jaw body one by one. A central floating compensation component is disposed on the sample clamping component and located between the multiple clamping jaw bodies. It is used to perform position compensation on the metallographic sample to be ground, which is placed between the central floating compensation component and the clamping jaw bodies, based on the metallographic sample to be ground and the clamping jaw bodies, so as to clamp the multiple metallographic samples to be ground separately.

3. The multi-station metallographic grinding and polishing system according to claim 2, characterized in that, The central floating compensation component includes: Compensation support plate; A floating clamping component is disposed on the compensation support plate in a position-adjustable manner, and is used to perform position compensation on the metallographic sample to be ground, which is placed between the central floating compensation component and the clamping body, based on the metallographic sample to be ground and the clamping body. At least three reset connectors are arranged in a radiating pattern along the circumference of the floating clamping member on the outer periphery of the floating clamping member. Each reset connector has two ends connected to the floating clamping member and the compensation support plate, respectively, to apply an elastic reset force to the floating clamping member so that the floating clamping member is reset to the center position of the plurality of gripper bodies when it is in a free state.

4. The multi-station metallographic grinding and polishing system according to claim 3, characterized in that, The floating clamping element includes: A floating block is provided with several clamping grooves on its circumference that correspond one-to-one with the gripper body, which are used to limit the position of the metallographic sample to be ground so as to cooperate with the gripper body for clamping. A connecting rod is disposed on the top of the floating block. The compensation support plate is provided with a circumferential floating compensation hole. The connecting rod is inserted through the circumferential floating compensation hole in a manner that allows for position adjustment within the circumferential floating compensation hole, and is used to adjust the horizontal support position of the floating block to achieve position offset compensation. A clamping plate is detachably mounted on the connecting rod, and the clamping plate and the floating block are respectively placed on both sides of the compensation support plate for connecting the reset connector to drive the floating block to reset.

5. The multi-station metallographic grinding and polishing system according to any one of claims 1 to 4, characterized in that, Each of the aforementioned grinding and polishing stations is equipped with an abrasive support mechanism. The abrasive is placed on the abrasive support mechanism. The abrasive support mechanism is used to support and lift the abrasive so that when the abrasive is replaced, it can be lifted to the support station for replacement. The workbench is also equipped with a layered grinding and polishing consumables storage rack, which is set on the workbench in a position-adjustable manner along the vertical direction for layered support of abrasives, so that when the abrasives are replaced, the layered grinding and polishing consumables storage rack moves to the top of the workbench. The actuator of the three-dimensional moving mechanism is also equipped with a replacement shovel, which is used to move under the drive of the three-dimensional moving mechanism to insert under the abrasive and drive the abrasive to move, thereby realizing the replacement of the abrasive.

6. The multi-station metallographic grinding and polishing system according to claim 5, characterized in that, The tiered grinding and polishing consumables storage rack includes: a support rod and at least two storage plates disposed on the support rod; wherein... Multiple storage plates are coaxially arranged and spaced apart to store abrasive materials separately; Each of the storage plates is a U-shaped structure, and the openings of the U-shaped structures face the same side, so that the replacement shovel can move up and down from the U-shaped relief groove of the storage plate, so that the abrasive on the storage plate or the replacement shovel can be exchanged and supported, thereby realizing the replacement of abrasive.

7. The multi-station metallographic grinding and polishing system according to claim 5, characterized in that, The abrasive support mechanism includes: Support ring; A lifting plate is movably disposed on the inner circumference of the support ring along the axial direction of the support ring. The lifting plate can be lowered to the support position. The lifting plate is flush with the top wall of the support ring. It can support the abrasive through the support ring and the lifting plate, so as to grind and polish the workpiece to be polished. The lifting plate can also drive the abrasive it supports to rise to the replacement position, so as to replace the abrasive through the replacement shovel.

8. The multi-station metallographic grinding and polishing system according to claim 6, characterized in that, The replacement shovel has a U-shaped structure; The distance between the two side plates of the replacement shovel is less than the width of the U-shaped relief groove of the storage plate, so that the replacement shovel can move up and down at the U-shaped relief groove of the storage plate.

9. The multi-station metallographic grinding and polishing system according to any one of claims 1 to 4, characterized in that, The three-dimensional moving mechanism includes: Y-axis movement component; The X-axis moving component is located at the power output end of the Y-axis moving component and is used to move along the Y-axis under the drive of the Y-axis moving component. The Z-axis moving component is located at the power output end of the X-axis moving component. It is used to move along the Y-axis under the drive of the Y-axis moving component and along the X-axis under the drive of the X-axis moving component. It can also drive the sample clamping mechanism to move vertically relative to the X-axis moving component along the Z-axis.

10. The multi-station metallographic grinding and polishing system according to any one of claims 1 to 4, characterized in that, Also includes: Sample holder, used to hold metallographic samples to be ground; A robotic arm, positioned between the sample holder and the worktable, is used to grasp the metallographic samples to be ground on the sample holder and transfer them one by one to the worktable.

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