Inlay sample clamping device and polishing system having the inlay sample clamping device

Abstract

This invention provides an inlaid sample clamping device and a polishing system incorporating the inlaid sample clamping device. The device includes: a support; a sample clamping mechanism rotatably mounted on the support, the sample clamping mechanism having at least three gripper bodies along its circumference; and a central floating compensation mechanism disposed on the sample clamping mechanism and located between the gripper bodies, used to compensate the position of the sample to be clamped between the central floating compensation mechanism and the gripper bodies. This invention achieves position compensation by having at least three gripper bodies on the sample clamping mechanism move synchronously, either towards or away from each other. Through the central floating compensation mechanism cooperating with the gripper bodies, based on the outer contours of multiple samples to be clamped, the device compensates for the position of the samples placed between the central floating compensation mechanism and the gripper bodies, causing them to shift, thus enabling the simultaneous clamping of samples of different sizes.

Description

Technical Field

[0001] This utility model relates to the field of gripper technology, and more specifically, to an inlaid sample clamping device and a polishing system having the inlaid sample clamping device. Background Technology

[0002] In the process of metal sample testing, the sample to be tested needs to be mounted and polished. This process is usually done manually on a grinding machine, which is labor-intensive and time-consuming. Moreover, the grinding process is affected by human factors, as different employees grind with different pressures, resulting in variations in the flatness of the sample and thus inconsistencies in the test results. Currently available automated grinding devices have poor grinding effects, can only grind one sample at a time, and are inefficient, failing to meet the diverse testing requirements of today. Summary of the Invention

[0003] In view of this, the present invention proposes an inlay sample clamping device and a polishing system having the inlay sample clamping device, aiming to solve the problem that the flatness of the sample is not uniform and the polishing effect is poor due to manual polishing after the sample is inlaid.

[0004] On one hand, this utility model proposes an embedded sample clamping device, which includes: a support; a sample clamping mechanism rotatably disposed on the support, the sample clamping mechanism having at least three gripper bodies along its circumference for clamping samples corresponding one-to-one with the gripper bodies; and a central floating compensation mechanism disposed on the sample clamping mechanism and located between the multiple gripper bodies for position compensation of the samples to be clamped, which are placed between the central floating compensation mechanism and the gripper bodies, based on the cooperation of the samples to be clamped with the gripper bodies, so as to clamp the multiple samples to be clamped separately.

[0005] Furthermore, in the aforementioned embedded sample clamping device, the central floating compensation mechanism includes: a compensation support plate; a floating clamping assembly disposed on the compensation support plate in a position-adjustable manner, used to perform position compensation on the sample placed between the central floating compensation mechanism and the clamping body based on the sample to be clamped and the clamping body; at least three reset connecting assemblies disposed in a radiating pattern along the circumference of the floating clamping assembly on the outer periphery of the floating clamping assembly, and each of the two ends of the reset connecting assemblies being connected to the floating clamping assembly and the compensation support plate respectively, used to apply an elastic reset force to the floating clamping assembly so that the floating clamping assembly resets to the center position of the plurality of clamping bodies when in a free state.

[0006] Furthermore, in the aforementioned embedded sample clamping device, the floating clamping assembly 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 sample to be clamped 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 assembly to drive the floating block to reset.

[0007] Furthermore, in the aforementioned sample clamping device, the clamping plate is provided with a mounting through hole, which is sleeved on the connecting rod, and a limiting block is detachably connected to the connecting rod on the side of the clamping plate opposite to the floating block, for limiting the installation of the floating block and the clamping plate onto the connecting rod.

[0008] Furthermore, in the above-mentioned embedded sample clamping device, the reset connection assembly includes: two connecting posts for connecting to the compensation support plate and the floating clamping assembly respectively; and a tension spring, with both ends connected to the two connecting posts respectively, for deforming as the horizontal position of the floating clamping assembly is adjusted and applying an elastic reset force to the connecting posts, so as to pull the floating clamping assembly to reset when the floating clamping assembly is in a free state.

[0009] Furthermore, in the above-mentioned embedded sample clamping device, the sample clamping mechanism is connected to a driving mechanism for driving the sample clamping mechanism to rotate.

[0010] Furthermore, in the above-mentioned embedded sample clamping device, a polishing compensation mechanism is provided between the sample clamping mechanism and the power output end of the driving mechanism to compensate for the process deviation of the polishing and grinding disc of the sample to be clamped.

[0011] Furthermore, in the aforementioned embedded sample clamping device, the polishing compensation mechanism includes: a fixed support plate; a floating support ring disposed on one side of the fixed support plate; at least three auxiliary support columns spaced apart circumferentially along the fixed support plate, each auxiliary support column being slidably inserted through the fixed support plate, the connecting end of each auxiliary support column being connected to the floating support ring, the floating end being connected to the sample clamping mechanism, and a floating spring being sleeved on the outer periphery of each auxiliary support column, the floating spring being placed between the floating support ring and the fixed support plate, for axial floating when the sample to be clamped by the sample clamping mechanism is polished with the grinding disc, so as to achieve axial downward pressure compensation.

[0012] Furthermore, in the above-mentioned embedded sample clamping device, a slip ring is provided between the sample clamping mechanism and the bracket.

[0013] On the other hand, this utility model proposes a polishing system, which is equipped with the above-mentioned embedded sample clamping device.

[0014] The embedded sample clamping device and polishing system provided by this utility model utilize at least three gripper bodies on the sample clamping mechanism to move synchronously in opposite directions. A central floating compensation mechanism, in conjunction with the gripper bodies, compensates for the position of multiple samples placed between the central floating compensation mechanism and the gripper bodies based on the outer contours of the samples to be clamped. This allows for offset and position compensation. Furthermore, the central floating compensation mechanism, in conjunction with the multiple gripper bodies, synchronously clamps multiple samples, enabling simultaneous clamping of samples of different sizes. This improves polishing efficiency, especially during grinding and polishing. The embedded sample clamping device automatically grasps the sample, adapts to its size, keeps the sample on the same plane, and maintains stability during rotation, achieving high-speed, high-efficiency grinding with good sample uniformity, thus improving detection accuracy. This solves the problem of inconsistent sample flatness and poor grinding results caused by manual polishing after sample embedding in existing systems. Simultaneously, the device has a simple structure, good grinding effect, and high grinding efficiency. 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 embedded sample clamping device provided in an embodiment of this utility model; Figure 2 A schematic diagram of the structure of the central floating compensation mechanism provided in this embodiment of the utility model; Figure 3 A front view of the central floating compensation mechanism provided in an embodiment of this utility model; Figure 4 for Figure 3 Sectional view of AA; Explanation of reference numerals in the attached figures: 1-Support, 2-Sample clamping mechanism, 21-Claw body, 3-Central floating compensation mechanism, 31-Compensation support plate, 311-Circumferential floating compensation hole, 312-Allowing groove, 313-Mounting groove, 32-Floating clamping assembly, 321-Floating block, 3211-Clamping groove, 322-Connecting rod, 323-Limiting block, 324-Clamping plate, 33-Reset connecting assembly, 331-Connecting column, 332-Tension spring, 34-Bearing, 4-Polishing compensation mechanism, 41-Fixed support plate, 42-Floating support ring, 43-Auxiliary support column, 44-Floating spring, 45-Guide tube seat, 5-Drive mechanism, 6-Pneumatic slip ring, 61-Fixing part, 62-Rotating part, 7-Sample to be clamped. 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] Device Example: See Figure 1 This is a schematic diagram of the embedded sample clamping device provided in an embodiment of the present invention. As shown in the figure, the device includes: a support 1, a sample clamping mechanism 2, and a central floating compensation mechanism 3; wherein, The bracket 1 can serve as a support, mainly supporting the sample clamping mechanism 2, the central floating compensation mechanism 3, the drive mechanism 5, etc. It can be fixedly installed on the clamping execution part of the grinding and polishing system, or it can be installed on the clamping execution part of the grinding and polishing system in this way. In this embodiment, no limitation is made on it.

[0018] The sample clamping mechanism 2 is rotatably mounted on the support 1. The sample clamping mechanism 2 has at least three gripper bodies 21 along its circumference, which are used to clamp the sample 7 to be clamped, which corresponds one-to-one with the gripper body 21.

[0019] Specifically, the sample clamping mechanism 2 is rotatably mounted below the support 1 (relative to...). Figure 1(As shown in the diagram), the sample clamping mechanism 2 can be connected to a drive mechanism 5, which drives the sample clamping mechanism 2 to rotate and can also drive the central floating compensation mechanism 3 set on the sample clamping mechanism 2 to rotate, so that the sample clamping mechanism 2 and the central floating compensation mechanism 3 rotate synchronously. In this embodiment, the drive mechanism 5 can be set above the bracket 1, the fixed seat can be fixedly installed on the bracket 1, and the power output end can be rotatably passed through the bracket 1 and fixedly connected to the sample clamping mechanism 2 below, so as to realize the drive of the rotation of the sample clamping mechanism 2. The sample clamping mechanism 2 can be a pneumatic gripper, which has at least three gripper bodies 21, and synchronous clamping and releasing are achieved by pneumatic control. The sample clamping mechanism 2 can also be other clamping mechanisms, and no limitation is made on it in this embodiment. In this embodiment, a slip ring, which can be a pneumatic slip ring 6, can be provided between the sample clamping mechanism 2 and the support 1. The fixed part 61 of the pneumatic slip ring 6 is fixedly installed on the support 1, and the rotating part 62 can be fixedly installed on the sample clamping mechanism 2, so as to realize the connection between the air passage on the sample clamping mechanism 2 and the air source on the support 1, and avoid the air tube from getting tangled due to the rotation of the sample clamping mechanism 2. In this embodiment, the power output end of the drive mechanism 5 can also be connected to the sample clamping mechanism 2 through the rotating part 62 of the pneumatic slip ring 6. The fixed part 61 of the pneumatic slip ring 6 is fixedly installed on the support 1 for support, which can realize the conduction of the air passage and also realize the rotational transmission between the drive mechanism 5 and the sample clamping mechanism 2. In other embodiments, the power output end of the drive mechanism 5 can pass through the pneumatic slip ring 6 and be connected to the sample clamping mechanism 2. The rotating part 62 of the pneumatic slip ring 6 is connected to the power output end of the drive mechanism 5 or the sample clamping mechanism 2 to realize synchronous rotation.

[0020] The central floating compensation mechanism 3 is disposed on the sample clamping mechanism 2 and located between multiple gripper bodies 21. It is used to perform position compensation on the sample 7 to be clamped, which is placed between the central floating compensation mechanism 3 and the gripper bodies 21, based on the sample 7 to be clamped and the gripper bodies 21, so as to clamp multiple samples 7 to be clamped separately.

[0021] Specifically, the central floating compensation mechanism 3 can be located below the sample clamping mechanism 2 and at the center of the sample clamping mechanism 2. Based on the outer contour of multiple samples 7 to be clamped, and in conjunction with multiple gripper bodies 21, it can perform position compensation for the samples 7 to be clamped between the central floating compensation mechanism 3 and the gripper bodies 21. In particular, it can float and shift towards the position of the smaller sample 7 to be clamped, i.e., position compensation, so that multiple samples 7 to be clamped can be clamped synchronously. Of course, if multiple samples 7 to be clamped are of the same size, the central floating compensation mechanism 3 is located at the center of the sample clamping mechanism 2, i.e., at the center of the multiple gripper bodies 21, without floating and shifting. The samples 7 to be clamped can be clamped separately by the synchronous opposite movement of the multiple gripper bodies 21, and each sample 7 to be clamped is clamped between the corresponding gripper body 21 and the central floating compensation mechanism 3.

[0022] In this embodiment, to avoid uneven polishing or even jamming of the sample 7 to be held due to the process fluctuations of the grinding disc, a polishing compensation mechanism 4 is provided between the power output end of the sample holding mechanism 2 and the drive mechanism 5. This mechanism compensates for the process deviations of the grinding of the sample 7 and the grinding disc, allowing the sample holding mechanism 2 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 mechanism 4 can be fixedly installed on the power output end of the drive mechanism 5 or the rotating part 62 of the slip ring. The actuator is connected to the sample holding mechanism 2 to drive the sample holding mechanism 2 to perform vertical displacement compensation relative to the power output end of the drive mechanism 5 or the rotating part 62 of the slip ring.

[0023] Of course, other methods can also be used for vertical displacement compensation. For example, a pressure compensation component can be provided between the support 1 and the clamping execution part of the polishing system to compensate for the downward pressure of the sample 7 held by the sample clamping mechanism 2 pressing down onto the sand grinding disc, so as to ensure that the downward pressure between the sample 7 and the sand grinding disc is maintained at a preset pressure. That is, the process deviation of the sand grinding disc and the downward pressure between the sample 7 and the sand grinding disc can both be maintained at the preset pressure as the sample 7 is polished, thereby ensuring the uniformity of polishing. 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 compensation component can be fixedly installed on the clamping execution part of the polishing system, and the power output end can be connected to the support 1 to drive the entire embedded sample clamping device to move vertically based on the downward pressure between the sample 7 and the sand grinding disc, so as to realize displacement compensation and downward pressure compensation.

[0024] See also Figure 1The polishing compensation mechanism 4 may include: a fixed support plate 41, a floating support ring 42, and at least three auxiliary support columns 43; wherein, the floating support ring 42 is disposed on one side of the fixed support plate 41; at least three auxiliary support columns 43 are arranged at intervals along the circumference of the fixed support plate 41, each auxiliary support column 43 is slidably inserted through the fixed support plate 41, the connecting end of each auxiliary support column 43 is connected to the floating support ring 42, the floating end is connected to the sample clamping mechanism 2, and a floating spring 44 is sleeved on the outer periphery of each auxiliary support column 43. The floating spring 44 is placed between the floating support ring 42 and the fixed support plate 41, and is used to float axially when the sample 7 to be clamped by the sample clamping mechanism 2 is polished with the grinding plate, so as to achieve axial downward pressure compensation.

[0025] Specifically, the drive mechanism 5, floating support ring 42, fixed support plate 41, slip ring, and sample clamping mechanism 2 can all be arranged coaxially, from top to bottom as drive mechanism 5, slip ring, and sample clamping mechanism 2. The fixed support plate 41 can be coaxially fixedly mounted on the power output end of drive mechanism 5 or on the rotating part 62 of slip ring. In this embodiment, the fixed support plate 41 is fixedly mounted on the bottom end face of the rotating part 62 of slip ring. The fixed support plate 41 can have several mounting through holes along its axial direction corresponding to the auxiliary support columns 43. Each mounting through hole can have a guide tube seat 45, through which the auxiliary support columns 43 can slidably pass. The guide tube seat 45 guides the up-and-down movement of the auxiliary support columns 43. The floating support ring 42 can be coaxially arranged above the fixed support plate 41 and sleeved on the outer circumference of the slip ring. The top ends of the auxiliary support columns 43 are all connected to the floating support ring 42, and the bottom ends are all connected to the sample clamping mechanism 2. In this embodiment, each auxiliary support column 43 is fitted with a floating spring 44 around its outer periphery between the fixed support plate 41 and the floating support ring 42. This allows for elastic adjustment of the distance between the fixed support plate 41 and the floating support ring 42, thereby adjusting the vertical height of the sample clamping mechanism 2 and achieving vertical position compensation. In other words, when there is a movement on the surface of the grinding disc, such as a protrusion, when the sample 7 to be clamped by the sample clamping mechanism 2 rotates to the protrusion, the sample 7 and the sample clamping mechanism 2 can move upwards under the thrust of the protrusion, thus pushing the auxiliary support column 43 and the floating support ring 44. As the sample holder moves upward, the floating spring 44 will stretch. When it rotates to the groove, the floating spring 44 can be compressed, allowing the auxiliary support column 43 and the floating support ring 42 to move downward along with the sample to be clamped 7 and the sample clamping mechanism 2. In other words, the auxiliary support column 43 can slide through the fixed support plate 41. In conjunction with the floating spring 44, compared with the fixed installation of the sample clamping mechanism 2, the auxiliary support column 43 and the floating support ring 42 can float up and down, thereby allowing the sample to be clamped 7 and the sample clamping mechanism 2 to follow the process deviation of the sand grinding disc and the sample grinding and polishing, thus achieving compensation.

[0026] In this embodiment, the sample clamping mechanism 2 has a plurality of radially arranged sliding grooves on its clamping body. Each sliding groove corresponds to a gripper body 21, and the gripper body 21 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 mechanism 3, clamps or releases the sample 7 to be clamped between them. Furthermore, multiple gripper bodies 21 can move synchronously, i.e., synchronously move towards or away from the center of the clamping body, achieving synchronous clamping or release of multiple samples 7 to be clamped.

[0027] See Figures 2 to 4 The figure illustrates a preferred structure of the central floating compensation mechanism 3 provided in an embodiment of the present invention. As shown, the central floating compensation mechanism 3 includes: a compensation support plate 31, a floating clamping assembly 32, and at least three reset connection assemblies 33.

[0028] The compensation support plate 31 serves a supporting function to support the floating clamping assembly 32 and at least three reset connection assemblies 33. Specifically, the compensation support plate 31 can be coaxially arranged with the sample clamping mechanism 2 and fixedly mounted on the bottom wall of the sample clamping mechanism 2 by bolts. A circumferential floating compensation hole 311 can be provided at the center of the compensation support plate 31 to provide space for horizontal position adjustment of the floating clamping assembly 32. The outer edge of the compensation support plate 31 is provided with a plurality of clearance grooves 312 corresponding one-to-one with the gripper body 21, for clearance of the sliding of the gripper body 21. In this embodiment, the support surface of the compensation support plate 31 (e.g., Figure 2 The top wall shown is provided with a mounting groove 313, which is connected to the circumferential floating compensation hole 311. It is used to support and make way for the reset connection assembly 33, so that the reset connection assembly 33 can be installed in the mounting groove 313, avoiding interference with the sample clamping mechanism 2, and making the device structure compact.

[0029] The floating clamping assembly 32 is mounted on the compensation support plate 31 in a position-adjustable manner. It is used to perform position compensation on the sample 7 to be clamped, which is placed between the central floating compensation mechanism 3 and the clamping body 21, based on the clamping sample 7 and the clamping claw body 21.

[0030] Specifically, the floating clamping assembly 32 is positioned along the setting surface of the compensation support plate 31 (e.g., Figure 2The horizontal plane shown is set on the compensation support plate 31 in a position-adjustable manner. That is, based on the outer contour of multiple samples 7 to be clamped, the position of multiple gripper bodies 21 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 311. For example, it can be moved toward the position of the sample 7 to be clamped that is too small or too narrow. This can not only reduce the space of the sample 7 to be clamped that is too small or too narrow, but also increase the space of the sample 7 to be clamped that is too large. That is, the position of the sample placed between the central floating compensation mechanism 3 and the gripper body 21 is compensated, and then the multiple gripper bodies 21 can be used to realize the separate and synchronous clamping of multiple samples 7 to be clamped.

[0031] At least three reset connection components 33 are arranged in a radiating pattern along the circumference of the floating clamping component 32 on the outer periphery of the floating clamping component 32. Each reset connection component 33 is connected at both ends to the floating clamping component 32 and the compensation support plate 31, respectively, to apply an elastic reset force to the floating clamping component 32 so that the floating clamping component 32 is reset to the center position of the multiple gripper bodies 21 when it is in a free state.

[0032] Specifically, at least three reset connection components 33 are arranged in a radiating pattern around the outer periphery of the floating clamping component 32. Each reset connection component 33 can be arranged radially along the compensation support plate 31 and can apply a radial elastic force to the floating clamping component 32. When the floating clamping component 32 shifts in the horizontal plane, the multiple reset connection components 33 are stretched or compressed and apply a radial elastic force to the floating clamping component 32. Under the multiple radial elastic forces, the floating clamping component 32 can be reset to the center position of the compensation support plate 31 in a free state.

[0033] In this embodiment, a bearing 34 is provided between the floating clamping assembly 32 and the compensation support plate 31. Rolling friction replaces sliding friction to reduce the frictional force between the floating clamping assembly 32 and the compensation support plate 31 during relative movement. Specifically, the floating clamping assembly 32 may be provided with a locking groove to lock and limit the bearing 34, thereby reducing the frictional force between the floating clamping assembly 32 and the compensation support plate 31 during relative movement by using rolling friction instead of sliding friction.

[0034] See also Figures 2 to 4 The floating clamping assembly 32 includes: a floating block 321, a connecting rod 322, and a clamping plate 324.

[0035] The floating block 321 has several clamping grooves 3211 in its circumferential direction that correspond one-to-one with the gripper body 21, which are used to limit the sample 7 to be clamped so as to cooperate with the gripper body 21 to clamp it.

[0036] Specifically, the floating block 321 can be a cylindrical structure with several clamping grooves 3211 on the bottom circumferentially corresponding to the gripper body 21. The clamping grooves 3211 are right-angled grooves, which can clamp the sample 7 to be clamped in a cuboid structure, so that one corner of the sample 7 to be clamped is locked and limited in the clamping groove 3211. Of course, the sample 7 to be clamped can also be supported in the clamping groove 3211. Furthermore, the two vertical sides of the sample 7 to be clamped abut against the two groove walls of the clamping groove 3211, and the other side opposite to the side between the two vertical sides abuts against the clamping wall of the gripper body 21, thereby realizing the clamping of the sample 7 to be clamped. Of course, the two opposite sides of the sample 7 to be clamped, i.e., the right-angled sides, can be clamped to the clamping groove 3211 and the gripper body 21 respectively. The gripper body 21 may have anti-slip textures on its clamping walls to increase clamping friction and improve the stability of clamping the sample 7. The gripper body 21 may also have locking grooves on its clamping walls to lock the edges and corners of the sample 7. The outer diameter of the floating block 321 is larger than the diameter of the circumferential floating compensation hole 311, which allows the floating block 321 to be limited to below the compensation support plate 31.

[0037] The connecting rod 322 is set on the top of the floating block 321. The compensation support plate 31 is provided with a circumferential floating compensation hole 311. The connecting rod 322 is inserted through the circumferential floating compensation hole 311 in a manner that allows for position adjustment within the circumferential floating compensation hole 311. This is used to adjust the horizontal support position of the floating block 321 and achieve position offset compensation.

[0038] Specifically, the top of the floating block 321 is provided with a connecting rod 322. The connecting rod 322 can be a screw structure, which is an integral structure with the floating block 321, or it can be connected in other ways, such as by welding. The connecting rod 322 passes through the circumferential floating compensation hole 311, and the position of the connecting rod 322 on the horizontal plane can be adjusted within the circumferential floating compensation hole 311, that is, it can be offset in various directions within the hole. The circumferential floating compensation hole 311 limits the position of the connecting rod 322.

[0039] The clamping plate 324 is detachably mounted on the connecting rod 322. The clamping plate 324 and the floating block 321 are respectively placed on both sides of the compensation support plate 31 for connecting the reset connection assembly 33 to drive the floating block 321 to reset.

[0040] Specifically, the clamping plate 324 is detachably mounted on the connecting rod 322. The clamping plate 324 has a circular structure, and its outer diameter is larger than the diameter of the circumferential floating compensation hole 311. This allows the clamping plate 324 to be positioned above the compensation support plate 31, enabling the installation and vertical positioning of the floating clamping assembly 32 and the compensation support plate 31. In other words, the connecting rod 322 can only be adjusted in position relative to the compensation support plate 31 within the circumferential floating compensation hole 311, and is axially fixed by the floating block 321 and the clamping plate 324. In this embodiment, the clamping plate 324 has a mounting through hole that fits the connecting rod 322 and is sleeved on the connecting rod 322, thus connecting the two. There are two bearings 34, which are respectively set between the clamping plate 324 and the compensation support plate 31, and between the floating block 321 and the compensation support plate 31. The bottom wall of the clamping plate 324 and the top wall of the floating block 321 can be provided with locking grooves to lock and limit the bearings 34.

[0041] In this embodiment, the connecting rod 322 is on the side of the clamping plate 324 facing away from the floating block 321 (e.g., Figure 2 The upper side (as shown) is detachably connected to a limiting block 323, which is used to limit the floating block 321 and the clamping plate 324 to be installed on the connecting rod 322. Specifically, the limiting block 323 can be a limiting nut, which is threadedly connected to the connecting rod 322, and can limit and clamp the clamping plate 324 and the compensation support plate 11 between the limiting block 323 and the floating block 321, thereby realizing the connection between the floating clamping assembly 32 and the compensation support plate 31.

[0042] See also Figure 2 and Figure 4 The reset connection assembly 33 includes: two connecting posts 331 and a tension spring 332; wherein, the two connecting posts 331 are respectively connected to the compensation support plate 31 and the floating clamping assembly 32; the tension spring 332 is connected to the two connecting posts 331 at both ends, and is used to deform as the horizontal position of the floating clamping assembly 32 is adjusted and to apply an elastic reset force to the connecting posts 331, so as to pull the floating clamping assembly 32 to reset when the floating clamping assembly 32 is in a free state.

[0043] Specifically, the two connecting columns 331 can be arranged radially along the compensation support plate 31 and connected to the compensation support plate 31 and the clamping plate 324 respectively. The tension springs 332 can be arranged radially along the compensation support plate 31, with both ends connected to the two connecting columns 331 respectively. When the clamping plate 324 adjusts its horizontal position with the floating block 321, the multiple tension springs 332 deform, for example, partially compressed and partially stretched, and apply a radial elastic restoring force to the connecting columns 331, thereby allowing the floating block 321 to be in a free state and reset.

[0044] In summary, the embedded sample clamping device provided in this embodiment uses at least three gripper bodies 21 on the sample clamping mechanism 2 to move synchronously towards or away from each other. A central floating compensation mechanism 3, in conjunction with the gripper bodies 21, compensates for the position of multiple samples 7 to be clamped based on their outer contours. This allows for offset adjustment and position compensation. Furthermore, the central floating compensation mechanism 3, in conjunction with the multiple gripper bodies 21, simultaneously clamps multiple samples 7 to be clamped, enabling the simultaneous clamping of samples 7 of different sizes. This improves grinding and polishing efficiency, especially during grinding and polishing. The embedded sample clamping device automatically grasps the sample, adapts to its size, keeps the sample on the same plane, and maintains stability during rotation, achieving high-speed, high-efficiency grinding with good sample uniformity, thus improving detection accuracy. This solves the problem of inconsistent sample flatness and poor grinding results caused by manual polishing after sample embedding in existing methods. Simultaneously, this device has a simple structure, good grinding effect, and high grinding efficiency.

[0045] System Implementation Example: This embodiment also proposes a polishing system, which is equipped with the aforementioned embedded sample clamping device and may also be equipped with a support frame to support the polishing host, such as a sand grinding disc. The support frame may also be equipped with a moving mechanism, and the embedded sample clamping device is set on the power output end of the moving mechanism to clamp the sample 7 to be clamped and move the sample 7 to be clamped to the polishing station for polishing.

[0046] Specifically, the moving mechanism can be a robotic arm, with its actuator serving as the power output end, capable of movement and position adjustment. Of course, the moving mechanism can also be other mechanisms, such as a two-dimensional planar movement that can move along the length and vertical direction of the support frame, or a three-dimensional moving mechanism that can adjust the position of the embedded sample clamping device, thereby moving it to the sample upper stage to clamp the sample 7 to be clamped, and driving the sample 7 to the polishing station for polishing. It can also transfer the polished sample to the sample lower balcony. In another embodiment of this invention, the downward pressure exerted by the embedded sample clamping device on the sand grinding disc can be compensated by a pressure compensation component between the embedded sample clamping device and the power output end of the moving mechanism. The specific implementation process of the pressure compensation component and the embedded sample clamping device is described above and will not be repeated here.

[0047] Since the inlay sample clamping device has the above-mentioned effects, the polishing system with the inlay sample clamping device also has the corresponding technical effects.

[0048] 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.

[0049] 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.

[0050] 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 sample holder for embedding, characterized in that, include: support; The sample clamping mechanism is rotatably mounted on the bracket. The sample clamping mechanism has at least three gripper bodies along its circumference for clamping the sample to be clamped, which corresponds to the gripper body one by one. A central floating compensation mechanism is disposed on the sample clamping mechanism and located between the multiple clamping jaw bodies. It is used to perform position compensation on the sample to be clamped, which is placed between the central floating compensation mechanism and the clamping jaw bodies, based on the sample to be clamped and the clamping jaw bodies, so as to clamp the multiple samples to be clamped separately.

2. The inlay sample clamping device according to claim 1, characterized in that, The central floating compensation mechanism includes: Compensation support plate; A floating clamping assembly is disposed on the compensation support plate in a position-adjustable manner, and is used to perform position compensation on the sample placed between the central floating compensation mechanism and the clamping body based on the sample to be clamped and the clamping jaw body. At least three reset connection components are arranged in a radiating pattern along the circumference of the floating clamping component on the outer periphery of the floating clamping component. Each reset connection component has two ends connected to the floating clamping component and the compensation support plate, respectively, to apply an elastic reset force to the floating clamping component so that the floating clamping component resets to the center position of the plurality of gripper bodies when it is in a free state.

3. The inlay sample clamping device according to claim 2, characterized in that, The floating clamping assembly 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 sample to be clamped so as to cooperate with the gripper body to clamp it. 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 connection assembly to drive the floating block to reset.

4. The inlay sample clamping device according to claim 3, characterized in that, The clamping plate is provided with a mounting through hole, which is sleeved on the connecting rod. Furthermore, a limiting block is detachably connected to the connecting rod on the side of the clamping plate opposite to the floating block, for limiting the installation of the floating block and the clamping plate onto the connecting rod.

5. The inlay sample clamping device according to claim 2, characterized in that, The reset connection component includes: Two connecting posts are used to connect to the compensation support plate and the floating clamping assembly, respectively; A tension spring, with its two ends connected to the two connecting posts respectively, is used to deform as the horizontal position of the floating clamping assembly is adjusted and to apply an elastic restoring force to the connecting posts, so as to pull the floating clamping assembly to reset when the floating clamping assembly is in a free state.

6. The inlay sample clamping device according to any one of claims 1 to 5, characterized in that, The sample clamping mechanism is connected to a driving mechanism for driving the sample clamping mechanism to rotate.

7. The inlay sample clamping device according to claim 6, characterized in that, A polishing compensation mechanism is provided between the power output end of the sample clamping mechanism and the driving mechanism to compensate for the process deviation of the polishing and grinding disc of the sample to be clamped.

8. The inlay sample clamping device according to claim 7, characterized in that, The polishing compensation mechanism includes: Fixed support plate; A floating support ring is disposed on one side of the fixed support plate; At least three auxiliary support columns are spaced apart circumferentially along the fixed support plate. Each auxiliary support column is slidably inserted through the fixed support plate. The connecting end of each auxiliary support column is connected to the floating support ring, and the floating end is connected to the sample clamping mechanism. A floating spring is sleeved on the outer periphery of each auxiliary support column. The floating spring is placed between the floating support ring and the fixed support plate and is used to axially float when the sample to be clamped by the sample clamping mechanism is polished with the grinding disc to achieve axial downward pressure compensation.

9. The inlay sample clamping device according to any one of claims 1 to 5, characterized in that, A slip ring is provided between the sample clamping mechanism and the support.

10. A polishing system, characterized in that, The device is equipped with a sample clamping device as described in any one of claims 1 to 8.

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