CN108333006B - Cubic sample clamping device suitable for various sizes and using method thereof - Google Patents
Cubic sample clamping device suitable for various sizes and using method thereof Download PDFInfo
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- CN108333006B CN108333006B CN201810019382.0A CN201810019382A CN108333006B CN 108333006 B CN108333006 B CN 108333006B CN 201810019382 A CN201810019382 A CN 201810019382A CN 108333006 B CN108333006 B CN 108333006B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/286—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q involving mechanical work, e.g. chopping, disintegrating, compacting, homogenising
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/286—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q involving mechanical work, e.g. chopping, disintegrating, compacting, homogenising
- G01N2001/2866—Grinding or homogeneising
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/286—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q involving mechanical work, e.g. chopping, disintegrating, compacting, homogenising
- G01N2001/2873—Cutting or cleaving
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- General Health & Medical Sciences (AREA)
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- Sampling And Sample Adjustment (AREA)
Abstract
The invention discloses a cubic sample clamping device suitable for various sizes and a using method thereof. The invention avoids the multi-crack sample block from being damaged during cutting and polishing, overcomes the problem of sample cracking during polishing and cutting by the fastening action of the clamping device on the sample, and has the advantages of simple preparation process, capital saving and the like.
Description
Technical Field
The invention relates to a civil engineering indoor test device, which is particularly used for the processes of cutting and polishing samples which are easy to crack.
Background
In a natural environment, a large number of rock masses contain various structures such as cracks, joints, faults and the like, and the mechanical properties of the rock masses are greatly influenced. Therefore, the method has great significance for the research of rock mass containing a large number of cracks. Laboratory tests are one of the important methods for civil engineering research, and the tests usually use similar materials such as concrete and resin or directly take samples from engineering sites. In order to enable the sample block to meet the test requirements, the processes of cutting, polishing and the like are required, but because the sample contains a large number of cracks or similar materials with weak strength, the sample splitting phenomenon often occurs in the processes of cutting, polishing and the like, the sample is not easy to form, and the development of subsequent tests is delayed.
Disclosure of Invention
The invention provides a cubic sample clamping and fixing device suitable for various sizes and a using method thereof, aiming at overcoming the phenomena that a sample containing multi-crack sample blocks are frequently split and the sample is not easy to form in the cutting, polishing and other processes.
The technical scheme adopted by the invention is as follows:
the utility model provides a cube sample card clamping device suitable for multiple size, including the working plate, quiet side board, the side board moves, a plurality of briquetting on, jam briquetting and fastener, quiet side board is vertical locates one side on the working plate, move the vertical opposite side that is relative with quiet side board that locates on the working plate of side board, the sample piece is located and is held between quiet side board and move the side board on the working plate, briquetting closely arranged is on the up end of sample piece between quiet side board and the side board moves on a plurality of briquetting, the jam briquetting is in the clearance between last briquetting and the side board moves, lock through fastener between quiet side board and the side board moves, and fastener is with briquetting and the jam briquetting on a plurality of briquetting on pressing on the sample piece.
The upper end surface of the working plate is provided with two sliding grooves, the lower ends of the static side pressure plate and the dynamic side pressure plate are respectively provided with a sliding foot matched with the two sliding grooves, the static side pressure plate is fixedly connected with the working plate, and the dynamic side pressure plate is in sliding connection with the working plate through the sliding grooves and the sliding feet.
All vertically on the face of quiet side clamp plate and movable side clamp plate be equipped with two fastening grooves, go up all vertically on the face of briquetting and stopper tight briquetting and be equipped with two U type recesses, the opening of U type recess is up, interval between two U type recesses equals with the interval between two fastening grooves on quiet side clamp plate or the movable side clamp plate, fastener includes fastening bolt and fastening nut, fastening bolt runs through the fastening groove of quiet side clamp plate in proper order, the U type recess of last briquetting, the U type recess of stopper tight briquetting and the fastening groove of movable side clamp plate, fastening bolt's free end passes through fastening nut and locks.
A clamping block protruding out of the block surface is arranged on one side surface of the upper pressing block, a clamping groove is arranged on the other side surface of the upper pressing block and corresponds to the clamping block, a clamping groove is also arranged on one side surface of the plugging pressing block, the other side surface of the plugging pressing block is a plane, and the clamping groove is matched with the clamping block.
Go up the thickness of briquetting and be 5mm, the convex thickness of fixture block is 2mm, and the depth of caving in of draw-in groove is 2mm, goes up through fixture block and draw-in groove mutual joint between the briquetting, goes up the briquetting and stops up and connect each other through fixture block and draw-in groove between the briquetting.
The plugging pressing block comprises 6 specifications, and the thicknesses are respectively 2mm, 3mm, 4mm, 5mm, 6mm and 7 mm.
The use method of the cubic sample clamping device suitable for various sizes comprises the following steps:
(1) fixing a static side pressure plate on one side of a working plate;
(2) placing a sample block on a working plate and next to a static side pressing plate;
(3) connecting a movable side pressure plate to the other side of the sample block on the working plate;
(4) arranging upper pressing blocks on the upper end surfaces of the sample blocks in sequence from the side of the static side pressing plate to the side of the movable side pressing plate, and clamping a gap between the upper pressing blocks and the movable side pressing plate by plugging pressing blocks;
(5) the fastening device locks the sample block among the working plate, the static side pressure plate, the dynamic side pressure plate, the upper pressure block and the plugging pressure block.
Compared with the prior art, the invention has the beneficial effects that: the device has the advantages that the sample block containing multiple cracks is prevented from being damaged during cutting and polishing, the problem of sample cracking during polishing and cutting is solved due to the fastening effect of the clamping device on the sample, meanwhile, the device can be applied to the processes of cutting, polishing and the like of cubic sample blocks with various sizes by adjusting the number of the upper pressing blocks, the integrity and the yield of the sample are greatly improved, and the device has the advantages of simple preparation process, capital saving and the like.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a schematic structural diagram of a cubic sample holder suitable for use with various sizes according to the present invention;
FIG. 2 is a schematic structural view of a working plate, a static side pressing plate and a dynamic side pressing plate;
FIG. 3 is a schematic structural view of one side of the upper pressing block belt block;
FIG. 4 is a schematic structural view of a side face of an upper pressing block or a plugging pressing block with a clamping groove;
FIG. 5 is a schematic view of the structure of one side of the plane of the jamming block;
fig. 6 is a schematic structural view of the fastening device.
The device comprises a working plate 1, a static side pressing plate 2, a dynamic side pressing plate 3, an upper pressing block 4, a fastening device 5, a sample block 6, a sliding pin 7, a fastening groove 8, a plugging pressing block 9, a sliding groove 11, a U-shaped groove 41, a clamping block 42, a clamping groove 43, a fastening bolt 51 and a fastening nut 52.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic views illustrating only the basic structure of the present invention in a schematic manner, and thus show only the constitution related to the present invention.
In the figure: 1-working plate, 2-static side pressing plate, 3-dynamic side pressing plate, 4-upper pressing block, 5-fastening device, 6-sample block, 7-sliding foot, 8-fastening groove, 9-plugging pressing block, 11-sliding groove, 41-U-shaped groove, 42-clamping block, 43-clamping groove, 51-fastening bolt and 52-fastening nut.
As shown in fig. 1 to 5, the present invention provides a cubic sample clamping device suitable for various sizes, which includes the following components:
the working plate is positioned at the bottommost part of the whole device, and two sliding grooves are formed in the plate surface;
the static side pressing plate is vertically fixed on the working plate through sliding feet arranged on the static side pressing plate and sliding grooves formed in the working plate, and cannot move, and two fastening grooves are vertically formed in the static side pressing plate.
And the movable side pressing plate is connected to the working plate in a sliding mode through a sliding foot arranged on the movable side pressing plate and a sliding groove in the working plate, and the movable side pressing plate can slide on the working plate in a reciprocating mode along the direction of the sliding groove.
The upper pressing blocks are arranged between the static side pressing plate and the dynamic side pressing plate and pressed on the pattern sample blocks, each upper pressing block is 5mm thick, and two downward U-shaped grooves are formed in each upper pressing block; meanwhile, a clamping block protruding outwards for 2mm is arranged in the middle of the lower part of one side of each upper pressing block, a clamping groove protruding inwards for 2mm is arranged in the middle of the lower part of the other side of each upper pressing block, and the upper pressing blocks are connected and tightly connected together through the clamping blocks and the clamping grooves; the upper pressing block is arranged from one side of the static side pressing plate, one side of the first upper pressing plate, which is close to the static side pressing plate, is a concave side, and when the upper pressing plate is sequentially arranged to the movable side pressing plate, the upper pressing block is a plugging pressing block close to the movable side pressing plate.
One side surface of the plugging pressing block is also provided with a clamping groove, the clamping groove is matched with the clamping block, the other side surface of the plugging pressing block is a plane and is not provided with the clamping block protruding out of the block surface, the plugging pressing block is clamped in a gap between the upper pressing block and the movable side pressing plate, the plugging pressing block comprises 6 specifications, and the thicknesses of the plugging pressing block are 2mm, 3mm, 4mm, 5mm, 6mm and 7mm respectively.
The fastening device penetrates from the outer side of the static side pressure plate to the outer side of the dynamic side pressure plate through the fastening groove and is installed in the U-shaped groove in the upper pressure plate, and the fastening device comprises a fastening bolt and a fastening nut.
Example 1
And placing the cube-shaped sample block on the working plate, exposing one end of the sample block to be cut or polished to the corresponding length of the working plate, enabling one side wall of the sample block to be tightly attached to the static side pressing plate, and moving the dynamic side pressing plate to enable the dynamic side pressing plate to be tightly attached to the other side wall of the sample block. The upper pressing block is sequentially arranged between the static side pressing plate and the movable side pressing plate, the upper pressing block is arranged on the upper end face of the sample block, and the plugging pressing block with corresponding thickness is selected when the last upper pressing block is arranged, so that the total thickness of the upper pressing block meets the length requirement of the sample block, and the sample block is firmly fastened between the static side pressing plate and the movable side pressing plate. Two fastening bolts penetrate through the fastening grooves of the static side pressure plate, penetrate through the U-shaped grooves of all the upper pressure plates and finally penetrate through the fastening grooves of the movable side pressure plate, and fastening nuts are screwed while the fastening bolts tightly press the U-shaped grooves of the upper pressure plates downwards. Finally, the sample block is clamped in the whole device, and then a cutting device or a grinding device is used for operation, so that the multi-crack-containing sample block with the size required by the test is obtained.
In example 1 above, the side pressure plate provides lateral pressure to the sample to limit lateral displacement of the block, wherein the stationary side pressure plate is fixed to one end of the working plate to avoid sliding of the block on the working plate during cutting and polishing due to sliding of both the stationary side pressure plate and the movable side pressure plate.
In the above embodiment 1, the upper pressing block is disposed above the sample block to provide downward pressure to the sample block, so as to limit the vertical displacement of the sample block, and avoid the damage of the sample block caused by uneven pressing action of the fastening device on the sample block without the upper pressing block.
In the above embodiment 1, the different thickness stopper pressing blocks are selected to avoid that the single upper pressing block cannot meet the length requirement of the sample block due to the thickness, and to avoid that the lateral action of the static side pressing plate and the dynamic side pressing plate cannot be directly exerted on the sample block due to the excessive thickness, and the sliding phenomenon still exists in the cutting and polishing processes, and meanwhile, the pressing action of the upper pressing plate cannot be completely exerted on the upper part of the whole sample block due to the insufficient thickness, and the part of the upper part not provided with the upper pressing block cannot be pressed, and is easily damaged in the cutting and polishing processes.
In the above embodiment 1, the fastening means functions to fix the position of the movable side platen while restricting the vertical displacement of the sample block by the transmission action of the upper press block.
In the above embodiment 1, the U-shaped groove of the upper press block is positioned to correspond to the fastening groove of the side press plate, so that the fastening means is directly placed in the U-shaped groove after passing through the fastening groove.
It will be understood by those skilled in the art that, unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
The meaning of "and/or" as used herein is intended to include both the individual components or both.
The term "connected" as used herein may mean either a direct connection between components or an indirect connection between components via other components.
In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations will be apparent to those skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (6)
1. The utility model provides a cube sample card solid device suitable for multiple size which characterized in that: the device comprises a working plate, a static side pressing plate, a movable side pressing plate, a plurality of upper pressing blocks, a plugging pressing block and a fastening device, wherein the static side pressing plate is vertically arranged on one side of the working plate, the movable side pressing plate is vertically arranged on the other side of the working plate opposite to the static side pressing plate, a sample block is arranged on the working plate and clamped between the static side pressing plate and the movable side pressing plate, the plurality of upper pressing blocks are closely arranged on the upper end surface of the sample block between the static side pressing plate and the movable side pressing plate, the plugging pressing block is plugged in a gap between the upper pressing block and the movable side pressing plate, the static side pressing plate and the movable side pressing plate are locked through the fastening device, and the fastening device presses the plurality of upper pressing blocks and the plugging pressing block on;
all vertically on the face of quiet side clamp plate and movable side clamp plate be equipped with two fastening grooves, go up all vertically on the face of briquetting and stopper tight briquetting and be equipped with two U type recesses, the opening of U type recess is up, interval between two U type recesses equals with the interval between two fastening grooves on quiet side clamp plate or the movable side clamp plate, fastener includes fastening bolt and fastening nut, fastening bolt runs through the fastening groove of quiet side clamp plate in proper order, the U type recess of last briquetting, the U type recess of stopper tight briquetting and the fastening groove of movable side clamp plate, fastening bolt's free end passes through fastening nut and locks.
2. A multi-sized cubic sample holder as set forth in claim 1, wherein: the upper end surface of the working plate is provided with two sliding grooves, the lower ends of the static side pressure plate and the dynamic side pressure plate are respectively provided with a sliding foot matched with the two sliding grooves, the static side pressure plate is fixedly connected with the working plate, and the dynamic side pressure plate is in sliding connection with the working plate through the sliding grooves and the sliding feet.
3. A multi-sized cubic sample holder as set forth in claim 1, wherein: a clamping block protruding out of the block surface is arranged on one side surface of the upper pressing block, a clamping groove is arranged on the other side surface of the upper pressing block and corresponds to the clamping block, a clamping groove is also arranged on one side surface of the plugging pressing block, the other side surface of the plugging pressing block is a plane, and the clamping groove is matched with the clamping block.
4. A multi-sized cubic sample holder as set forth in claim 3, wherein: go up the thickness of briquetting and be 5mm, the convex thickness of fixture block is 2mm, and the depth of caving in of draw-in groove is 2mm, goes up through fixture block and draw-in groove mutual joint between the briquetting, goes up the briquetting and stops up and connect each other through fixture block and draw-in groove between the briquetting.
5. A multi-sized cubic sample holder as set forth in claim 1, wherein: the plugging pressing block comprises 6 specifications, and the thicknesses are respectively 2mm, 3mm, 4mm, 5mm, 6mm and 7 mm.
6. The method of using a multi-sized cubic sample holder according to claim 1, wherein: the method comprises the following steps:
(1) fixing a static side pressure plate on one side of a working plate;
(2) placing a sample block on a working plate and next to a static side pressing plate;
(3) connecting a movable side pressure plate to the other side of the sample block on the working plate;
(4) arranging upper pressing blocks on the upper end surfaces of the sample blocks in sequence from the side of the static side pressing plate to the side of the movable side pressing plate, and clamping a gap between the upper pressing blocks and the movable side pressing plate by plugging pressing blocks;
(5) the fastening device locks the sample block among the working plate, the static side pressure plate, the dynamic side pressure plate, the upper pressure block and the plugging pressure block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810019382.0A CN108333006B (en) | 2018-01-09 | 2018-01-09 | Cubic sample clamping device suitable for various sizes and using method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810019382.0A CN108333006B (en) | 2018-01-09 | 2018-01-09 | Cubic sample clamping device suitable for various sizes and using method thereof |
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| Publication Number | Publication Date |
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| CN108333006A CN108333006A (en) | 2018-07-27 |
| CN108333006B true CN108333006B (en) | 2020-06-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810019382.0A Active CN108333006B (en) | 2018-01-09 | 2018-01-09 | Cubic sample clamping device suitable for various sizes and using method thereof |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108915214A (en) * | 2018-09-05 | 2018-11-30 | 南京欧泰钢格板制造有限公司 | A kind of grid locating piece |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5955727A (en) * | 1982-09-27 | 1984-03-30 | Mitsubishi Heavy Ind Ltd | Mold clamping device |
| JP2000106717A (en) * | 1998-10-02 | 2000-04-18 | Kyushu Electric Power Co Inc | Planting apparatus |
| CN201653774U (en) * | 2010-03-22 | 2010-11-24 | 宁波宝新不锈钢有限公司 | Sample preparation die used for stainless steel drawing detection |
| CN202607158U (en) * | 2012-05-24 | 2012-12-19 | 芜湖众力底盘系统有限公司 | Adjustable welding jig for safety belt reinforced plate |
| CN104972175A (en) * | 2014-04-02 | 2015-10-14 | 苏州宝时得电动工具有限公司 | Cutting machine |
| CN105352797A (en) * | 2015-10-27 | 2016-02-24 | 河海大学 | Magnetic device and method for fixing rock axial tensile specimen extensometer auxiliary assembly |
| CN105415163A (en) * | 2015-12-18 | 2016-03-23 | 浙江信石精密滚动体有限公司 | Oilstone clamping device of cylindrical ultrafine grinding machine |
| CN206095682U (en) * | 2016-10-18 | 2017-04-12 | 韩昊 | Rubber model machine |
| CN206208634U (en) * | 2016-11-20 | 2017-05-31 | 陈远环 | A kind of adjustable concrete die trial |
| CN106891179A (en) * | 2015-12-19 | 2017-06-27 | 天津顺泰福鑫机械加工有限公司 | A kind of fixture for milling machine |
-
2018
- 2018-01-09 CN CN201810019382.0A patent/CN108333006B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5955727A (en) * | 1982-09-27 | 1984-03-30 | Mitsubishi Heavy Ind Ltd | Mold clamping device |
| JP2000106717A (en) * | 1998-10-02 | 2000-04-18 | Kyushu Electric Power Co Inc | Planting apparatus |
| CN201653774U (en) * | 2010-03-22 | 2010-11-24 | 宁波宝新不锈钢有限公司 | Sample preparation die used for stainless steel drawing detection |
| CN202607158U (en) * | 2012-05-24 | 2012-12-19 | 芜湖众力底盘系统有限公司 | Adjustable welding jig for safety belt reinforced plate |
| CN104972175A (en) * | 2014-04-02 | 2015-10-14 | 苏州宝时得电动工具有限公司 | Cutting machine |
| CN105352797A (en) * | 2015-10-27 | 2016-02-24 | 河海大学 | Magnetic device and method for fixing rock axial tensile specimen extensometer auxiliary assembly |
| CN105415163A (en) * | 2015-12-18 | 2016-03-23 | 浙江信石精密滚动体有限公司 | Oilstone clamping device of cylindrical ultrafine grinding machine |
| CN106891179A (en) * | 2015-12-19 | 2017-06-27 | 天津顺泰福鑫机械加工有限公司 | A kind of fixture for milling machine |
| CN206095682U (en) * | 2016-10-18 | 2017-04-12 | 韩昊 | Rubber model machine |
| CN206208634U (en) * | 2016-11-20 | 2017-05-31 | 陈远环 | A kind of adjustable concrete die trial |
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