Lithofacies polished slice clamp
By designing a petrographic optical thin section fixture that includes rotating columns, fixed columns, square grooves and other components, the problem that existing grinding and polishing machines cannot directly grind optical thin sections has been solved, and uniform grinding and efficient imaging of optical thin sections have been achieved. .
Patent Information
- Application Number
- CN202421118066.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-21
- Publication Date
- 2025-01-21
- Estimated Expiration
- 2034-05-21
AI Technical Summary
The existing grinding and polishing machines do not have fixtures for grinding sheets and light sheets, and cannot directly grind the light sheets, and have low efficiency, uneven force, and difficult to control the thickness.
Design a petrographic optical thin section fixture, including a rotating column, a fixed column, a square groove and other components. Through the cooperation of these components, it is ensured that the mineral-laden glass slices are evenly stressed during grinding and polishing, and the grinding size is controlled to prevent Pieces of glass break.
It achieves uniform grinding of optical flakes, controls the grinding size, reduces labor costs, improves detection efficiency, and significantly improves the imaging effect of optical flakes.
Smart Images
Figure CN222371334U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of petrographic analysis, in particular to a petrographic optical thin-section clamp. Background Art
[0002] Mineral rock thin sections are tools used to observe and study minerals. It is done by cutting rock or mineral samples into thin sections and then observing their structure, composition and properties under a microscope. By observing mineral rock thin sections, information about the substance can be obtained. First, the composition and structural characteristics of the thin sections can be inferred from the color, transparency and other characteristics of the thin sections. Secondly, the arrangement and growth of rocks and minerals in the thin sections can be inferred from their causes and evolution history. Finally, the physical properties of minerals, such as hardness and brittleness, can be understood by observing the microstructure in the thin sections, such as lattices and defects. The preparation of mineral rock thin sections requires a series of steps. The production method is to cut the mineral into a rectangular block or other shaped block slightly larger than 2.5cm×1.5cm×1cm, first coarsely grind one side, and then finely grind it until it is clear in clean water after fine grinding on a glass plate. Use solid optical gum to stick the fine polished surface to a glass slide, and then grind it from coarse to fine grinding until the thickness is 0.03mm, and then polish it on a polishing machine to make a light slice that can be used as a thin slice (used to identify transparent or translucent minerals under a polarizing microscope) and as a light slice (used to identify opaque minerals under a mineralogy microscope). This light slice can study the relationship between opaque minerals and transparent minerals on the same slice, which is very important for studying the embedding characteristics of minerals.
[0003] The difficulty of making optical slices lies in low efficiency, uneven force, and difficult to control thickness. Ordinary manual sample making often encounters problems such as grinding through, bubbles in the middle, too thick or too thin. The sample making of optical slices in China mainly relies on the long-term experience accumulated by manual labor, and there is no specific grinding equipment. The existing German Stell automatic grinding and polishing equipment is mainly for optical slice samples. After setting the working parameters and matching with appropriate polishing liquid, qualified optical slice samples can be prepared. The sample needs to be prepared into a cylindrical sample with a diameter of 30mm and stuck on the grinding and polishing fixture for sample making. Therefore, there are two problems. First, only optical slice samples of specific sizes can be ground; second, there is no fixture equipped for grinding slices and optical slices, so optical slices cannot be directly ground.
[0004] Therefore, it is necessary to design a mold that can assemble a thin sheet and a grinder and polisher fixture, which can be assembled on both the thin sheet and the grinder and polisher fixture to achieve the purpose of automatic grinding and polishing of the thin sheet. Utility Model Content
[0005] The utility model provides a petrographic light slice clamp, which solves the problem that the existing grinding and polishing machine is not equipped with a clamp for grinding slices and light slices, and thus cannot directly grind light slices.
[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:
[0007] A petrographic thin-section fixture comprises a base plate, wherein the left and right sides of the upper surface of the base plate are respectively provided with fixed columns, the upper side of the fixed columns is rotatably connected to a rotating column, the rotating column is provided with a movable slide groove and a fixed rod, and the fixed rod is arranged in the movable slide groove; the lower surface of the base plate is provided with a square groove.
[0008] Furthermore, the rotating column is fixed to the fixed column by fixing bolts.
[0009] Furthermore, the fixed column and the rotating column are both column structures.
[0010] Furthermore, a gasket is provided between the fixed column and the rotating column.
[0011] Furthermore, the square groove is located directly below the lower surface of the bottom plate, and a circular hole is provided at the center of the bottom plate.
[0012] Further, the diameter of the rotating column is smaller than the fixed diameter, and the rotating column and the fixed column can pass through two sample holes of the automatic grinding and polishing machine fixture.
[0013] The beneficial effects of the utility model are:
[0014] The utility model can ensure that the square glass slice carrying minerals is evenly stressed during grinding and polishing through the mutual cooperation of the rotating column, the fixed column, the square groove and other components, strictly control the grinding size, prevent the glass slice from breaking, and can grind and polish multiple optical slices or thin slice samples at one time. The imaging effect under the polarizing microscope is better than that of manual production, which significantly reduces labor costs and improves detection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions of the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0016] Figure 1 It is the front view of the utility model.
[0017] Figure 2 It is a top view of the utility model.
[0018] Description of Figure Numbers:
[0019] 1. Rotating column; 2. Fixed column; 3. Square groove; 4. Fixing bolt; 5. Movable slide; 6. Fixed rod. DETAILED DESCRIPTION
[0020] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments of the present invention can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.
[0021] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means a limitation on the utility model and its application or use. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.
[0022] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the utility model. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.
[0023] Unless otherwise specifically stated, the relative arrangement of the parts and steps described in these embodiments, numerical expressions and numerical values do not limit the scope of the utility model. At the same time, it should be clear that, for ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be regarded as a part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.
[0024] In the description of the present utility model, it needs to be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present utility model and simplifying the description. Unless otherwise stated, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present utility model: the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.
[0025] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below their position devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.
[0026] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the utility model.
[0027] The utility model provides a technical solution: a petrographic optical thin section fixture, such as Figure 1-2As shown, a petrographic thin section fixture mainly includes six parts, namely a rotating column 1, a fixed column 2, a square groove 3, a fixing bolt 4, a movable slide groove 5, and a fixing rod 6. The rotating column 1 is a column structure with a diameter of 22 mm, which is mainly used for locking the fixture after being connected to the polishing machine fixture by rotating a certain angle, so that it forms a misalignment difference with the lower fixed column 2, so that the optical thin film fixture can be fixed on the automatic polishing machine fixture; the fixed column 2 is a column structure with a diameter of 24 mm, which is mainly snapped on the two sample holes of the automatic grinding and polishing machine fixture, and the general sample hole diameter is 25 mm; the square groove is a rectangle with a length of 146 mm and a width of 36 mm, and the groove depth is 1.5 mm, which is mainly used to embed glass pieces with minerals adhered to the surface, and stick to the inside of the square groove 3 through the adsorption force of water; the fixing bolt 4 mainly fixes the rotating column 2 on the fixing column 1, and the gasket under the rotating column 1 can make the rotating column 2 rotate around the fixing bolt 4; the movable slide groove 5 refers to the range of activity of the rotating column 2 when it makes an arc motion with the fixing bolt 4 as the center; the fixing rod 6 refers to the maximum range of arc motion controlled by the fixing rod 6 when the rotating column moves.
[0028] The actual use process of this device is:
[0029] Select a square glass slide that matches the fixture to embed the mineral sample, cut the thin sample to within 1 mm, rinse the thin slice and fixture with water, embed the glass slide into the square groove 3 of the fixture base, and rely on the adsorption force of water to firmly adsorb the glass slide. Then put the two fixed columns 2 of the fixture into the corresponding holes of the automatic grinder and polisher. In order to prevent it from falling, rotate the rotating column 1 so that the rotating column 1 and the fixed column 2 form a certain angle. Finally, use the grinder to apply a force of 25 to 30N to the two fixed columns, control the rotation rate to 300r / min, and use 800#, 1200#, 9μ, 3μ and 1μ materials to perform fine grinding and polishing operations on them, and obtain qualified optical thin section samples.
[0030] The above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent substitutions or changes within the technical scope disclosed by the present invention according to the technical solution and inventive concept of the present invention, which should be covered by the protection scope of the present invention.
Claims
1. A petrographic light thin section fixture, characterized in that: The invention comprises a bottom plate, wherein the left and right sides of the upper surface of the bottom plate are respectively provided with fixed columns (2), the upper part of the fixed columns (2) is rotatably connected to a rotating column (1), the rotating column (1) is provided with a movable slide groove (5) and a fixed rod (6), and the fixed rod (6) is arranged in the movable slide groove (5); the lower surface of the bottom plate is provided with a square groove (3).
2. The petrographic light thin section fixture according to claim 1, characterized in that: The rotating column (1) is fixed on the fixed column (2) by means of fixing bolts (4).
3. The petrographic light thin section fixture according to claim 1, characterized in that: The fixed column (2) and the rotating column (1) are both column structures.
4. The petrographic light section fixture according to claim 1, characterized in that: A gasket is provided between the fixed column (2) and the rotating column (1).
5. The petrographic light thin section fixture according to claim 1, characterized in that: The square groove (3) is located directly below the lower surface of the bottom plate, and a circular hole is provided at the center of the bottom plate.
6. The petrographic light thin section fixture according to claim 1, characterized in that: The diameter of the rotating column (1) is smaller than the diameter of the fixed column (2), and the rotating column (1) and the fixed column (2) on both sides can pass through two sample holes of the automatic grinding and polishing machine fixture.