Surface polishing device for sample workpiece
Through the combination of grinding mechanism and lifting mechanism, the surface coating of electrical steel plates can be quickly and effectively removed, solving the problems of long sample preparation procedures and high-temperature alkaline splashing in the prior art, ensuring the accuracy and safety of detection.
Patent Information
- Application Number
- CN202422115625.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-29
- Publication Date
- 2025-07-29
- Estimated Expiration
- 2034-08-29
AI Technical Summary
The prior art has problems such as long sample preparation process, high-temperature alkali liquid splashing and alkali steam hazards when removing the surface coating of electrical steel plates, which cannot meet the increasingly stringent production requirements.
The surface of the workpiece is polished in a rotating manner by using a grinding mechanism, and the spacing between the frosted sheet and the workpiece surface is adjusted in combination with the lifting mechanism to achieve rapid and effective removal of the coating and avoid high-temperature alkaline liquid splashing and alkali steam hazards.
By uniformly polishing the coating, we ensure the accuracy of carbon sulfur detection and analysis, improve work efficiency, avoid the hazards of high-temperature alkali liquid splashing and alkali steam, and meet modern production needs.
Smart Images
Figure CN223160663U_ABST
Abstract
Description
Technical Field
[0001] This application belongs to the technical field of carbon and sulfur analysis of electrical steel sheets, and particularly relates to a surface grinding device for sample workpieces. Background Art
[0002] Electrical steel, also known as silicon steel sheet, is an important soft magnetic alloy indispensable in the power, electronics, and military industries. It is also the metal functional material with the largest output, mainly used as the core of various motors, generators, and transformers. With the increasing annual production capacity of electrical steel and fierce market competition, higher requirements are put forward for product performance testing. The carbon and sulfur detection of electrical steel sheets directly affects the magnetic properties of products and is an important factor restricting product quality. Since electrical steel sheets need to be insulated, they are coated with a semi-organic coating on the surface. Before detecting carbon and sulfur, the surface coating needs to be removed, otherwise it will interfere with the detection results.
[0003] Currently, most domestic methods use molten hot alkali solution to remove the coating of electrical steel sheets. After washing with water, it is rinsed into chips for carbon and sulfur detection. The molten hot alkali solution needs to be pre-fired at a high temperature for about 3 hours to burn the 50% concentration sodium hydroxide aqueous solution into a molten alkali solution. The final temperature of the alkali solution is about 180 - 200°C to remove the coating on the surface of the electrical steel sheet. However, the existing technology has problems such as a long sample preparation process, splashing of high-temperature alkali solution, poor environmental sanitation, and harm to health caused by alkali vapor. Therefore, for the above workpieces that need to remove the surface coating, the current method of using hot alkali solution is not suitable for the increasingly strict production requirements. Utility Model Content
[0004] This application aims to at least solve the technical problem of removing the coating of workpieces to a certain extent. For this purpose, this application provides a surface grinding device for sample workpieces, which can quickly and effectively remove the coating of the workpiece, thus avoiding coating interference with carbon and sulfur detection and analysis, and at the same time not generating problems such as splashing of high-temperature alkali solution and harm caused by alkali vapor.
[0005] An embodiment of this application provides a surface grinding device for sample workpieces, which includes:
[0006] A basic bracket and a support plate;
[0007] A grinding mechanism, including a grinding table, abrasive sheets, and a driver. The abrasive sheets are attached to the grinding table, the grinding table is connected to the driver, and the driver is used to drive the grinding table and the abrasive sheets to rotate, so that the abrasive sheets grind the surface of the sample workpiece. The grinding table is installed on the support plate;
[0008] A lifting mechanism, fixed to the basic bracket and connected to the support plate, for adjusting the distance between the abrasive sheets and the surface of the sample workpiece.
[0009] In an optional embodiment, the abrasive sheets are detachably connected to the grinding table, so that after the abrasive sheets are connected to the grinding table, the surface of the abrasive sheets can be flatly attached to the surface of the sample workpiece.
[0010] In an alternative embodiment, a dust suction assembly is further included, which is connected to the support plate and used for sucking the dust generated by the abrasive sheet when grinding the specimen workpiece.
[0011] In an alternative embodiment, the dust suction assembly includes a dust suction hood and a dust suction connecting pipe. The dust suction hood is sleeved outside the grinding table, and there is a gap between the dust suction hood and the edge of the grinding table. The dust suction connecting pipe is connected to the dust suction hood and is in communication with the gap, so that the dust can be discharged through the gap and the dust suction connecting pipe. The dust suction connecting pipe is used to provide negative pressure.
[0012] In an alternative embodiment, the height of the edge of the dust suction hood is greater than or equal to the surface height of the abrasive sheet, so that the surface of the abrasive sheet can grind the specimen workpiece.
[0013] In an alternative embodiment, the lifting mechanism includes a driving cylinder and a slider. The driving cylinder is installed on the base bracket, the output end of the driving cylinder is connected to the slider, and the slider is connected to the support plate. The driving cylinder is used to drive the slider, the support plate and the grinding table to lift in the vertical direction together.
[0014] In an alternative embodiment, the lifting mechanism further includes a plurality of guide rails. The guide rails are fixed to the base bracket and are slidably connected to the slider, so that the slider can adjust its height in the vertical direction.
[0015] In an alternative embodiment, a limiting member is further included, which is connected to the base bracket. The limiting member is used to limit the height adjustment of the slider, so that when the abrasive sheet contacts the surface of the specimen workpiece, the limiting member abuts against the slider.
[0016] In an alternative embodiment, a workbench is further included, which is used to place the specimen workpiece. There are two sets of lifting mechanisms arranged oppositely. The workbench is connected to one set of lifting mechanisms, and the other set of lifting mechanisms is connected to the support plate.
[0017] In an alternative embodiment, a backing plate is further included, which is used to place the specimen workpiece. The backing plate is spaced from the abrasive sheet. The backing plate is used to be placed in the working area, or the backing plate belongs to a partial structure of the workbench.
[0018] As can be seen from the above technical solutions, the beneficial effects of the present application are:
[0019] In this application, a grinding mechanism is used to grind the surface of the workpiece in a rotating manner. The grinding table is driven by a drive to rotate and grind, so that the abrasive sheet can evenly grind the surface of the sample workpiece, thereby more evenly removing the coating on the surface of the sample workpiece. Through the lifting mechanism, the distance between the abrasive sheet and the surface of the sample workpiece can be adjusted, so as to adjust the distance between the abrasive sheet and the surface of the sample workpiece to a suitable position. In this way, the thickness of the coating to be ground can be determined, and then the coating of the workpiece can be removed quickly and effectively, thereby avoiding coating interference with carbon and sulfur detection and analysis, and at the same time not generating problems of high-temperature alkali liquid splashing and alkali vapor hazards. Brief Description of the Drawings
[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are some embodiments of the present application. For those of ordinary skill in the art, other embodiments and drawings can be obtained based on these drawings without creative efforts.
[0021] Figure 1 The figure shows a schematic diagram of an embodiment of the surface grinding device for the sample workpiece of the present utility model;
[0022] Figure 2 The figure shows a perspective schematic diagram of an embodiment of the grinding mechanism of the present utility model;
[0023] Figure 3 The figure shows a schematic diagram of an embodiment of the surface grinding device for the sample workpiece of the present utility model;
[0024] Reference numerals: 100, grinding device; 110, basic bracket; 120, lifting mechanism; 121, guide rail; 122, slider; 123, drive cylinder; 130, support plate; 140, grinding mechanism; 141, grinding table; 142, abrasive sheet; 143, drive; 150, dust suction assembly; 151, dust suction hood; 152, dust suction connecting pipe; 160, backing plate; 170, limiting member; 180, workbench; 200, sample workpiece. Detailed Description of the Embodiments
[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, rather than all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the protection scope of the present utility model.
[0026] It should be noted that all the directional indications in the embodiments of the present utility model are only used to explain the relative positional relationship, movement conditions, etc. between components in a specific posture. If the specific posture changes, the directional indications will also change accordingly.
[0027] In the present utility model, unless otherwise clearly defined and limited, terms such as "connection" and "fixation" shall be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and can be the communication inside two components or the interaction relationship between two components, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.
[0028] In addition, in the present utility model, descriptions such as "first" and "second" are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, features defined with "first" and "second" can explicitly or implicitly include at least one such feature. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present utility model.
[0029] The following describes the present application with reference to the accompanying drawings and specific embodiments:
[0030] Please refer to Figure 1, an embodiment of the present application provides a surface grinding device for a specimen workpiece, which is used to grind the surface of the specimen workpiece 200 to remove the coating. For example, the specimen workpiece 200 is a steel plate with a thickness of 0.2 - 0.65 mm, a length of 300 - 320 mm, and a width of 30 - 40 mm. The grinding device 100 includes a base bracket 110, a support plate 130, a grinding mechanism 140, and a lifting mechanism 120. The base bracket 110 serves as the foundation for installation and support. The base bracket 110 is formed by welding steel plates. For example, at the bottom, a steel plate is installed in the process area, and then vertically arranged steel plates are welded to the bottom steel plate to form the foundation of the entire device. The support plate 130 is a strip-shaped plate structure for installing the grinding mechanism 140, such as a strip-shaped steel plate, which has a certain thickness to ensure that the grinding mechanism 140 will not generate torque under the action of the lifting mechanism 120. The support plate can also be designed as a box shape with a cavity for wiring inside. The wiring of the grinding mechanism 140 can be placed in the cavity. One end of the support plate 130 is fixed to the lifting mechanism 120, which can be welded or fixed with screws. The other end of the support plate 130 is connected and fixed to the grinding mechanism 140.
[0031] Please refer to Figure 2, the grinding mechanism 140 includes a grinding table 141, an abrasive sheet 142, and a driver 143. The abrasive sheet 142 is in a sheet shape and is attached to the grinding table 141. The grinding table 141 is connected to the driver 143. The driver 143 is used to drive the grinding table 141 and the abrasive sheet 142 to rotate, so that the abrasive sheet 142 grinds the surface of the specimen workpiece 200. The grinding table 141 is installed on the support plate 130. Specifically, the end of the support plate 130 has a shaft hole. The driver 143 uses a motor and can rotate. The housing of the driver 143 is fixed to the support plate 130 with screws, so that the output shaft of the driver 143 passes through the shaft hole and extends from the other side of the support plate 130. The grinding table 141 is located at the bottom of the support plate 130. The output shaft is inserted into the hole provided in the grinding table 141 and fixed, so that the output shaft can drive the grinding table 141 to rotate, and the grinding table 141 can rotate relative to the support plate 130; the abrasive sheet 142 uses sandpaper or other paper materials. This is because the grinding cleanliness of the specimen workpiece 200 is high. After the sandpaper grinds the specimen workpiece 200, the dust remaining between the grits will contaminate the next specimen workpiece 200, so it needs to be replaced regularly. For example, the sandpaper needs to be replaced once every 10 electric steel sheet specimens are processed; the lifting mechanism 120 can adopt various structural forms, as long as it ensures that the lifting mechanism 120 can drive the support plate 130 to lift and lower in the vertical direction. One end of the lifting mechanism 120 is fixed to the base bracket 110, and the other end of the lifting mechanism 120 is connected to the support plate 130. The lifting is used to adjust the distance between the abrasive sheet 142 and the surface of the specimen workpiece 200. For example, if the lifting mechanism 120 uses an electric cylinder, the electric cylinder is fixed to the base bracket 110 with screws, and the output end of the electric cylinder is embedded in one end of the support plate 130. In this way, the electric cylinder can drive the support plate 130 to adjust the height. The lifting mechanism 120 can also adopt other structural forms.
[0032] For the coating on the surface of the workpiece in the prior art, the method of using alkali solution to remove it does not meet the increasingly strict production requirements, and there are problems such as long sample preparation process, high-temperature alkali solution splashing, poor environmental sanitation, and harm to health caused by alkali vapor. In this application, the grinding mechanism 140 is used to grind the surface of the workpiece in a rotating manner. The driver 143 drives the grinding table 141 to rotate and grind. The abrasive sheet 142 can evenly grind the surface of the specimen workpiece 200, so that the coating on the surface of the specimen workpiece 200 can be removed more evenly. Through the lifting mechanism 120, the distance between the abrasive sheet 142 and the surface of the specimen workpiece 200 can be adjusted, so that the distance between the abrasive sheet 142 and the surface of the specimen workpiece 200 can be adjusted to a suitable position. In this way, the thickness of the coating to be ground can be determined, and then the coating of the workpiece can be removed quickly and effectively, thus avoiding the interference of the coating on the carbon and sulfur detection and analysis, and at the same time not generating the problems of high-temperature alkali solution splashing and harm caused by alkali vapor.
[0033] In an alternative embodiment, the abrasive sheet 142 is detachably connected to the grinding table 141. After the abrasive sheet 142 is connected to the grinding table 141, the surface of the abrasive sheet 142 can be flatly attached to the surface of the specimen workpiece 200. The abrasive sheet 142 is attached to the bottom of the grinding table 141, and the bottom of the grinding table 141 is a flat surface. The abrasive sheet 142 is also flattened, so that the abrasive sheet 142 can be closely attached to the surface of the specimen workpiece 200 flatly. The top surface of the abrasive sheet 142 is adhered to the bottom surface of the grinding table 141. In this way, the abrasive sheet 142 can be quickly replaced by tearing it off and re-adhering it. For example, if the abrasive sheet 142 is a flocked sandpaper, it has an adhesive surface. The abrasive sheet 142 and the grinding table 141 can also adopt other detachable connection methods. For example, a chute is provided at the top of the abrasive sheet 142, and a protrusion matching the chute is provided at the bottom of the grinding table 141. In this way, the abrasive sheet 142 can be inserted from the side and combined with the grinding table 141, and when replacement is needed, the abrasive sheet 142 can be pushed out from the side and replaced.
[0034] In an alternative embodiment, the grinding device 100 further includes a dust suction assembly 150, which is connected to the support plate 130 and is used for sucking the dust generated by the abrasive sheet 142 when grinding the specimen workpiece 200. The dust suction assembly 150 can adopt a negative pressure suction fan, and the negative pressure suction fan sucks the dust through an air flow pipeline. One end of the air flow pipeline is placed beside the abrasive sheet 142, so that the dust generated by the grinding of the abrasive sheet 142 can be sucked away by the negative pressure suction fan. In an alternative embodiment, the dust suction assembly 150 includes a dust suction hood 151 and a dust suction connection pipe 152. The dust suction hood 151 is sleeved outside the grinding table 141, and there is a gap between the dust suction hood 151 and the edge of the grinding table 141. For example, the gap is 5 mm. The dust suction connection pipe 152 is connected to the dust suction hood 151, and the dust suction connection pipe 152 communicates with the gap, so that the dust can be discharged through the gap and the dust suction connection pipe 152. The dust suction connection pipe 152 is used to provide negative pressure. For example, the dust suction connection pipe 152 is connected to a negative pressure machine or a suction pump through a pipeline. In an alternative embodiment, the height of the edge of the dust suction hood 151 is greater than or equal to the surface height of the abrasive sheet 142, so that the abrasive sheet 142 can grind the coating without affecting the dust suction hood 151, and the surface of the abrasive sheet 142 can grind the specimen workpiece 200. The dust suction hood 151 is in a ring-shaped cylinder shape. The dust suction hood 151 is outside the grinding table 141, and its range covers the grinding area of the abrasive sheet 142, so that the dust generated by grinding can be sucked into the dust suction hood 151.
[0035] In an optional embodiment, the lifting mechanism 120 includes a drive cylinder 123 and a slider 122. The drive cylinder 123 is installed on the base bracket 110. The drive cylinder 123 is fixed to the base bracket 110 by screws. Other connection methods can also be used. The drive cylinder 123 is vertically arranged so that its output end can move vertically. The output end of the drive cylinder 123 is connected to the slider 122. The end of the output end is inserted into the slider 122 and fixed. The output end can be fixed by screws on the side of the slider 122. The slider 122 is fixed to the support plate. 130 is connected, such as the end of the support plate 130 is welded to the side of the slider 122, and the drive cylinder 123 is used to drive the slider 122, the support plate 130 and the grinding table 141 to rise and fall in the vertical direction. Specifically, the drive cylinder 123 is driven by gas or liquid, or can be electrically driven. The output end of the drive cylinder 123 can be raised and lowered in the vertical direction, so that the output end drives the slider 122 to move vertically, and then drives the support plate 130 and the grinding table 141 to rise and fall together, and finally adjusts the grinding sheet 142 to the appropriate position. The drive cylinder 123 can be a cylinder, which is connected to the air source, and the air source can adjust the air flow. In this way, the cylinder can be used to press the grinding sheet 142 tightly against the sample workpiece 200. When the thickness of the sample workpiece 200 is different, the pressing force provided by the cylinder is constant, which is determined only by the air supply pressure, ensuring that the grinding effect of samples of different thicknesses is consistent.
[0036] In an optional embodiment, the lifting mechanism 120 also includes multiple guide rails 121, each guide rail 121 is fixed to the base bracket 110, the guide rail 121 is bar-shaped, and the guide rail 121 is fixed to the base bracket 110 with screws. The guide rail 121 is slidably connected to the slider 122, so that the slider 122 can adjust the height along the vertical direction. Specifically, a plurality of sliding grooves are recessed on one side of the slider 122, and each sliding groove corresponds to a guide rail 121, so that the slider 122 can slide relative to the multiple guide rails 121. If two guide rails 121 are used, after using multiple guide rails 121, the grinding sheet 142 can move in a small gap in the lifting mechanism 120 during the lifting process, without shaking, the grinding sheet 142 and the support plate 160 are highly parallel, and the surface of the sample workpiece 200 can be polished evenly.
[0037] In an optional embodiment, the grinding device 100 also includes a limit member 170, which is connected to the base bracket 110. The limit member 170 includes a positioning steel plate and a limit screw. The positioning steel plate is fixed to the base bracket 110 by screws. The positioning steel plate is provided with threaded holes running through both sides. The limit screws match the threaded holes. The position of the limit screw corresponds to the slider 122, so that when the slider 122 slides vertically, it can rest against the end of the limit screw. At this time, the slider 122 cannot drop any further, and the height of the grinding deviation is also limited. The limit member 170 is used to limit the height adjustment of the slider 122, so that when the grinding sheet 142 contacts the surface of the sample workpiece 200, the limit member 170 will press the slider 122.
[0038] Please refer to Figure 3 In an alternative embodiment, the grinding device 100 further includes a workbench 180 for placing the sample workpiece 200. The workbench 180 may adopt a table-like structure and has a platform for placing the sample workpiece 200. The workbench 180 may be provided separately or connected to the base bracket 110. In an alternative embodiment, there are two sets of lifting mechanisms 120 arranged oppositely. Each set of lifting mechanisms 120 includes the above-mentioned guide rail 121, slider 122, and driving cylinder 123. The two sets of lifting mechanisms 120 are arranged oppositely. The workbench 180 is connected to one set of lifting mechanisms 120. For example, the workbench 180 is fixed to the slider 122 by screws, and the other set of lifting mechanisms 120 is connected to the support plate 130. The connection method is the same as the connection between the support plate 130 and the slider 122 described above. In this way, the support plate 130 can adjust its height, and the workbench 180 can also adjust its height.
[0039] In an alternative embodiment, it further includes a backing plate 160 for placing the sample workpiece 200. The backing plate 160 is in a plate shape and is spaced from the abrasive sheet 142. The backing plate 160 is used to be placed in the working area, or the backing plate 160 belongs to a partial structure of the workbench 180. For example, the backing plate 160 is located at the top of the platform of the workbench 180. The backing plate 160 adopts a plate-like structure with high flatness and high stiffness, such as a steel plate. When the sample workpiece 200 is placed on the backing plate 160, it will not deform under the action of the abrasive sheet 142, enabling the abrasive sheet 142 to uniformly press the material, resulting in uniform grinding thickness of the sample and good surface quality.
[0040] When making a sample in this application, the sample workpiece 200 is a thin steel plate. The thin steel plate with a coating is placed on the workbench 180 or the backing plate 160. First, the height of the abrasive sheet 142 is adjusted through the lifting mechanism 120, and the gap between the abrasive sheet 142 and the surface of the sample workpiece 200 is adjusted to a position where it can just be ground. The coating of the sample workpiece 200 is removed by the abrasive sheet 142, and then it is purged, chipped, and collected. The sample can be directly used for infrared carbon and sulfur analysis. In this way, the original method of "chemically removing the coating with hot alkaline solution" is changed to the method of "grinding with sandpaper". The grinding device 100 replaces manual operation, removing the coating quickly and effectively, and can greatly improve work efficiency.
[0041] In the description of this specification, the descriptions referring to terms such as "one embodiment", "some embodiments", "examples", "specific examples", "optional examples" or "optional implementation manners", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of this application. In this specification, the schematic expressions of the above terms are not necessarily directed to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine the different embodiments or examples described in this specification.
[0042] In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on what can be achieved by those of ordinary skill in the art. When the combination of technical solutions results in contradictions or cannot be achieved, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by this application.
[0043] Although the embodiments of this application have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and purpose of this application. The scope of this application is defined by the claims and their equivalents.
Claims
1. A surface grinding device for a sample workpiece, characterized in that: Comprising: A base bracket (110) and a support plate (130); A grinding mechanism (140), including a grinding table (141), an abrasive sheet (142) and a driver (143), the abrasive sheet (142) is attached to the grinding table (141), the grinding table (141) is connected to the driver (143), the driver (143) is used to drive the grinding table (141) and the abrasive sheet (142) to rotate, so that the abrasive sheet (142) grinds the surface of the specimen workpiece (200), and the grinding table (141) is installed on the support plate (130); A lifting mechanism (120), fixed to the base bracket (110) and connected to the support plate (130), for adjusting the distance between the abrasive sheet (142) and the surface of the specimen workpiece (200).
2. The surface grinding device for the specimen workpiece according to claim 1, characterized in that, The abrasive sheet (142) is detachably connected to the grinding table (141), so that after the abrasive sheet (142) is connected to the grinding table (141), the surface of the abrasive sheet (142) can be flatly attached to the surface of the specimen workpiece (200).
3. The surface grinding device for the specimen workpiece according to claim 1, characterized in that, It further includes a dust suction assembly (150), connected to the support plate (130), for sucking the dust generated by the abrasive sheet (142) grinding the specimen workpiece (200).
4. The surface grinding device for the test workpiece according to claim 3, characterized in that, The dust suction assembly (150) includes a dust suction hood (151) and a dust suction connecting pipe (152), the dust suction hood (151) is sleeved outside the grinding table (141), and there is a gap between the dust suction hood (151) and the edge of the grinding table (141), the dust suction connecting pipe (152) is connected to the dust suction hood (151), the dust suction connecting pipe (152) communicates with the gap, so that the dust can be discharged through the gap and the dust suction connecting pipe (152), and the dust suction connecting pipe (152) is used to provide negative pressure.
5. The surface grinding device for a specimen workpiece according to claim 4, wherein The height of the edge of the dust suction hood (151) is greater than or equal to the surface height of the abrasive sheet (142), so that the surface of the abrasive sheet (142) can grind the specimen workpiece (200).
6. The surface grinding device for the specimen workpiece according to claim 1, characterized in that, The lifting mechanism (120) includes a driving cylinder (123) and a slider (122), the driving cylinder (123) is installed on the base bracket (110), the output end of the driving cylinder (123) is connected to the slider (122), the slider (122) is connected to the support plate (130), and the driving cylinder (123) is used to drive the slider (122), the support plate (130) and the grinding table (141) to lift together in the vertical direction.
7. The surface grinding device for a specimen workpiece according to claim 6, wherein, The lifting mechanism (120) further includes a plurality of guide rails (121), the guide rails (121) are fixed to the base bracket (110), and the guide rails (121) are slidably connected to the slider (122), so that the slider (122) can adjust its height in the vertical direction.
8. The surface grinding device for the test workpiece according to claim 6, characterized in that, It further includes a limiting member (170) connected to the base bracket (110). The limiting member (170) is used to limit the height adjustment of the slider (122), so that when the abrasive sheet (142) contacts the surface of the specimen workpiece (200), the limiting member (170) presses against the slider (122).
9. The surface grinding device for a specimen workpiece according to any one of claims 1-8, characterized in that, It further includes a workbench (180) for placing the specimen workpiece (200). There are two sets of the lifting mechanisms (120) which are arranged oppositely. The workbench (180) is connected to one set of the lifting mechanisms (120), and the other set of the lifting mechanisms (120) is connected to the support plate (130).
10. The surface grinding device for the specimen workpiece according to claim 9, wherein, It further includes a backing plate (160) for placing the specimen workpiece (200). The backing plate (160) is arranged at an interval from the abrasive sheet (142). The backing plate (160) is used to be placed in the working area, or the backing plate (160) belongs to a partial structure of the workbench (180).