Sample positioning tool
By designing a sample positioning fixture, the problem of inaccurate detection of small-sized curved metal samples by direct-reading spectrometers was solved, achieving low-cost and high-efficiency detection results, which is suitable for metal sample detection by direct-reading spectrometers.
Patent Information
- Application Number
- CN202421142711.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-21
- Publication Date
- 2025-01-07
- Estimated Expiration
- 2034-05-21
AI Technical Summary
Direct-reading spectrometers are difficult to accurately detect small-sized curved solid metal samples, especially small-diameter tubular and rod-shaped metal samples, and ICP detection equipment is expensive and has complex pretreatment.
Design a sample positioning fixture, including a shell, a base, a support assembly, a pressing component, and a cover. The support assembly forms a placement groove to fix the sample, and the pressing component can move up and down to clamp the sample, forming a sealed chamber to ensure the accuracy of the test.
It improves the accuracy of detecting large-sized curved metal samples and can effectively detect small-sized curved metal samples. It is simple to operate, has low equipment cost, and reduces the professional background requirements for operators.
Smart Images
Figure CN222308646U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of direct-reading spectrometer detection, in particular to a sample positioning tool. Background Art
[0002] At present, direct reading spectrometer is the mainstream equipment for fast and accurate measurement of metal solid samples, but there are also some problems. For example, if the size of the curved metal solid sample is too small, the detection port will not be completely blocked when it is detected by the direct reading spectrometer, resulting in air leakage and inaccurate detection results. Therefore, the existing components on the equipment have certain requirements for the size of the curved metal solid sample, that is, the size of the curved metal solid sample cannot be too small. At present, the detection of the curved surface of small-sized curved metal solid samples (especially tubular metal samples and rod-shaped metal samples with small diameters) is mainly carried out through ICP (inductively coupled plasma emission spectrometer), but the equipment is relatively expensive (hundreds of thousands of yuan), and the sample pretreatment procedure is relatively complicated, requiring the operator to have a certain chemical professional background. Utility Model Content
[0003] In order to solve the above technical problems, the main purpose of the utility model is to provide a sample positioning tool, which aims to solve the problem that the direct reading spectrometer cannot detect or accurately measure the curved surface components of small-sized curved metal solid samples (such as tubular metal samples and rod-shaped metal samples with smaller diameters).
[0004] In order to achieve the above-mentioned purpose, the utility model proposes a sample positioning tool, which comprises:
[0005] A shell body, wherein the shell body forms a working chamber with an opening at one end;
[0006] A base, arranged at the bottom of the working chamber, and a detection port is arranged on the base;
[0007] At least two support assemblies are installed on the base, wherein the two support assemblies are spaced apart and arranged on both sides of the detection port, and a placement groove is formed on the top of the support assembly, and the placement groove is used for placing the sample along the length direction of the placement groove so that the sample and the detection port are opposite to each other up and down;
[0008] a cover body, which is disposed on the open end of the working chamber to seal the working chamber; and
[0009] The pressing piece is movably mounted on the cover body and has a stroke of approaching and moving away from the supporting assembly, so as to clamp and release the sample respectively.
[0010] In one embodiment, the support assembly includes a connecting rod extending in a vertical direction, one end of the connecting rod is fixed to the base, and the other end is connected to a support plate, the support plate is used to extend along the length direction of the sample, and the support plate is respectively fixed with limit plates on both sides along the width direction, the limit plates extend in a direction away from the support plate, and the limit plates and the support plate form the placement groove.
[0011] In one embodiment, the limiting plate is provided with a plurality of mounting holes along the length direction of the supporting plate, and the plurality of mounting holes are arranged at intervals along the length direction of the limiting plate. The supporting assembly further comprises an adjusting member, and the adjusting member is movably installed in the mounting holes.
[0012] In one embodiment, a ruler is fixed on the support plate, and the ruler is arranged along the width direction of the support plate.
[0013] In one embodiment, the number of the supporting components is two, and the two supporting components are symmetrically arranged on both sides of the detection port.
[0014] In one embodiment, the inner side surface of the placement groove is at least partially elastic; and / or,
[0015] The pressing element is at least partially elastic.
[0016] In one embodiment, a cover plate is provided above the cover body, a through hole is opened in the cover plate corresponding to the cover body, and the pressing piece is movably installed in the through hole.
[0017] In one embodiment, the pressing member includes an operating portion and an adjusting portion, wherein the operating portion is disposed outside the shell, and the adjusting portion is movably inserted into the through hole to extend into the working cavity.
[0018] In one embodiment, the lower end of the connecting rod is provided with an opening extending along the length direction thereof, and the sample positioning fixture further comprises a telescopic device, and the telescopic device can be installed in the opening in a telescopic manner up and down.
[0019] In one embodiment, a fixing hole connected to the opening is provided on the side of the connecting rod, and the telescopic device includes:
[0020] A movable rod is installed in the opening so as to be movable up and down; and
[0021] The fixing mechanism is passed through the fixing hole and is used for pressing against the movable rod located in the opening.
[0022] In the technical solution of the utility model, the sample positioning tool comprises: a shell, a base, at least two support components and a pressing piece, the shell forms a working cavity with an opening at one end, the base is arranged at the bottom of the working cavity, a detection port is arranged on the base, a plurality of the support components are installed on the base, two of the support components are arranged at intervals on both sides of the detection port, a placement groove is formed on the top of the support component, the placement groove is used for placing the sample along the length direction of the placement groove so that the sample and the detection port are opposite to each other up and down, a cover body is provided at the open end of the working cavity to seal the working cavity, the pressing piece can be movably installed on the cover body up and down to press or loosen the sample, the sample positioning tool is simple to operate and can be recycled, and detection by the sample positioning tool on the direct reading spectrometer can not only improve the accuracy of curved surface detection of large-sized curved surface metal samples, but also can detect small-sized curved surface metal samples. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in 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 the structures shown in these drawings without paying creative work.
[0024] Figure 1 A schematic diagram of the structure of the sample positioning tool provided by the utility model;
[0025] Figure 2 for Figure 1 A schematic diagram of the structure of the support assembly of the specimen positioning fixture shown;
[0026] Figure 3 for Figure 1 Schematic diagram of the structure of the limit plate of the specimen positioning fixture shown.
[0027] Description of Figure Numbers:
[0028] 100. Sample positioning tool; 1. Shell; 11. Working chamber; 2. Base; 21. Inspection port; 3. Support assembly; 31. Connecting rod; 32. Support plate; 32a. Scale; 33. Limit plate; 331. Mounting hole; 34. Adjustment member; 4. Pressing member; 41. Operating part; 42. Adjustment part; 5. Cover; 51. Through hole; 52. Cover plate; 53. Scale rod; P. Sample.
[0029] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION
[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions 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. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0031] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.
[0032] In addition, the descriptions of "first", "second", etc. in the present utility model are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.
[0033] At present, direct reading spectrometer is the mainstream equipment for fast and accurate measurement of metal solid samples, but there are also some problems. For example, if the size of the curved metal solid sample is too small, the detection port will not be completely blocked when it is detected by the direct reading spectrometer, resulting in air leakage and inaccurate detection results. Therefore, the existing components on the equipment have certain requirements for the size of the curved metal solid sample, that is, the size of the curved metal solid sample cannot be too small. At present, the detection of the curved surface of small-sized curved metal solid samples (especially tubular metal samples and rod-shaped metal samples with small diameters) is mainly carried out through ICP (inductively coupled plasma emission spectrometer), but the equipment is relatively expensive (hundreds of thousands of yuan), and the sample pretreatment procedure is relatively complicated, requiring the operator to have a certain chemical professional background.
[0034] In view of this, the utility model proposes a sample positioning tool, which is simple to operate and can be recycled. Detection by the sample positioning tool on a direct reading spectrometer can not only improve the accuracy of curved surface detection of large-sized curved metal samples, but also can detect the curved surface of small-sized curved metal samples. Figure 1 A schematic diagram of the structure of a sample positioning tool provided by the utility model; Figure 2 for Figure 1A schematic structural diagram of the support assembly of the specimen positioning fixture is shown.
[0035] Please refer to Figure 1 The utility model proposes a sample positioning tool 100, the sample positioning tool 100 includes: a shell 1, a base 2, at least two support components 3 and a pressing part 4, the shell 1 is formed with a working chamber 11 with an opening at one end, the base 2 is arranged at the bottom of the working chamber 11, the base 2 is provided with a detection port 21, a plurality of the support components 3 are installed on the base 2, wherein two of the support components 3 are arranged at intervals on both sides of the detection port 21, and a placement groove is formed on the top of the support component 3, and the placement groove is used for placing the sample P along the length direction of the placement groove So that the sample P and the detection port 21 are opposite to each other in vertical direction, a cover body 5 is provided at the open end of the working chamber 11 to seal the working chamber 11, and the pressing member 4 can be movably installed on the cover body 5 up and down to press or release the sample P. The sample positioning fixture 100 is easy to operate and can be recycled. In addition, because the sample positioning fixture 100 can form a closed working chamber 11 to ensure that there is no air leakage during detection, the detection through the sample positioning fixture 100 can not only improve the accuracy of large-sized curved surface metal sample detection, but also can detect small-sized curved surface metal sample surfaces.
[0036] Specifically, the base 2 and the shell 1 can be integrally formed, or the base 2 can be detachably connected to the bottom of the shell 1 by bolts. In this embodiment, in order to reduce installation errors, the base 2 and the shell 1 are integrally formed. It can be understood that the support components 3 are provided in multiple numbers, for example, 2, 3 or more, to accommodate specimens P of different lengths, as long as two of the support components 3 are spaced apart at both ends of the detection port 21. In addition, the height of the bottom of the placement groove should be the same so that the two ends of the specimen P are at the same height to ensure that the surface of the specimen is flat. The specific form of the pressing part 4 is not limited here. It can be manual, such as a bolt, which realizes up and down movement by rotating the bolt to tighten or loosen the specimen P. It can also be pneumatic, such as a cylinder controlling the up and down movement.
[0037] Please refer to Figure 2In order to make the structure of the sample positioning fixture 100 simpler, the support assembly 3 is provided with a connecting rod 31 extending in the vertical direction, one end of the connecting rod 31 is fixed to the base 2, and the other end is connected to a supporting plate 32, the supporting plate 32 is used to extend along the length direction of the sample P, and the supporting plate 32 is respectively fixed with limiting plates 33 on both sides along the width direction, and the limiting plates 33 extend in the direction away from the supporting plate 32, and the limiting plates 33 and the supporting plate 32 form the placement groove, thereby preventing the sample from falling during the detection process; specifically, the limiting plate 33 is located in the normal direction of the supporting plate 32. In the embodiment of the utility model, the specific shape of the limiting plate 33 is not limited here, for example, it can be arc-shaped or flat, as long as the limiting plates 33 on both sides are symmetrical, and the limiting plates 33 on both sides are relatively arranged, so that the limiting effect is better.
[0038] For further information, see Figure 3 The limiting plate 33 is provided with a plurality of mounting holes 331 along the length direction of the support plate 32, and the plurality of mounting holes 331 are arranged at intervals along the length direction of the limiting plate 33. The support assembly 3 also includes an adjusting member 34, and the adjusting member 34 is movably installed in the mounting hole 331. Specifically, the specific form of the adjusting member 34 is not limited here. In the embodiment of the utility model, the adjusting member 34 is an adjusting bolt, and correspondingly, the mounting hole 331 is a threaded hole. The mounting holes 331 on the limiting plates 33 on both sides are arranged opposite to each other and the mounting holes 331 on both sides are arranged opposite to each other. Adjusting parts 34 are installed. It should be noted that, each limiting plate 33 corresponds to at least one adjusting part 34, so that the adjusting part 34 presses the sample P from both sides along the radial direction of the sample P to suppress it, and the limiting effect is better. In addition, for samples P with different pipe diameters, mounting holes 331 of different heights can be selected to insert the adjusting parts 34 for pressing and tightening. For example, for samples P with smaller pipe diameters, the adjusting part 34 can be inserted into the lowermost mounting hole 331 and pressed inward to tighten the sample P. Therefore, the applicability of the sample positioning tool 100 is wider.
[0039] Please continue reading Figure 2 In order to facilitate the control of the adjustment amount on both sides of the support plate 32, a scale 32a is fixedly provided on the support plate 32. The scale 32a is set along the width direction of the support plate 32. The origin of the scale 32a is set at the center position, and the scales on both sides are symmetrical. In this way, during the adjustment of the adjustment member 34, it is convenient to observe the adjustment amount on both sides, and it can be ensured that the axis of the sample P coincides with the axis of the support plate 32, so that the sample P can completely correspond to the top of the detection port 21.
[0040] It can be understood that the supporting components 3 are provided in two, and the two supporting components 3 are symmetrically arranged on both sides of the detection port 21, the supporting plates 32 are correspondingly symmetrically provided in two, and the limiting plates 33 are provided in four, so that the sample P can be evenly distributed on the supporting components 3 on both sides, so that the supporting effect is better.
[0041] In order to prevent deformation of the sample P from affecting the accuracy of the test, in one embodiment, the inner surface of the placement groove is at least partially elastically set, and the inner surface of the placement groove near the bottom of the groove can be elastically set, or the inner surface of the entire placement groove can be elastically set. In this embodiment, high-temperature resistant plastic is hot-melted on the inner surface of the placement groove near the bottom of the groove, so that the sample P is in elastic contact with the inner surface of the placement groove; the pressing piece 4 is at least partially elastically set, and the pressing piece 4 can be elastically set as a whole, or the bottom of the pressing piece 4 can be elastically set. In another embodiment, high-temperature resistant plastic is hot-melted at the bottom of the pressing piece 4, which ensures the strength while making the bottom of the pressing piece 4 elastically contact with the sample P to further reduce the deformation of the sample P.
[0042] In order to ensure the airtightness of the sample positioning fixture 100 and prevent air leakage during the detection process, the cover body 5 is fixed to the shell 1 by fixing bolts, and a cover plate 52 is provided on the top of the cover body 5. The cover plate 52 corresponds to the center position of the cover body 5 to best cover the detection port 21. The cover plate 52 is provided with a through hole 51 corresponding to the cover body 5. In this embodiment, the through hole 51 is a threaded hole, and the pressing piece 4 is provided with an external thread. The pressing piece 4 can be moved up and down by matching the threaded hole and the external thread, and the structure is simpler. In addition, in order to prevent the pressing piece 4 from damaging the surface of the sample to be tested due to excessive adjustment, in an embodiment of the utility model, a scale rod 53 along the vertical direction is provided on the cover body 5 or the cover plate 52, and a scale along the vertical direction is provided on the scale rod to facilitate observation of the adjustment amount of the pressing piece 4.
[0043] For details, please continue to see Figure 1The pressing part 4 includes an operating part 41 and an adjusting part 42. The operating part 41 is arranged on the outside of the shell 1, and the adjusting part 42 is movably inserted into the through hole 51 to extend into the working chamber 11, thereby pressing or releasing the pressing of the sample P. The specific forms of the adjusting part 42 and the operating part 41 are not limited here. In this embodiment, the adjusting part 42 is set as a bolt, and the corresponding operating part 41 can be a hexagonal screw head on the top of the bolt. In this way, the adjusting part 42 can be moved up and down by rotating the hexagonal screw head, making the structure simpler and easier to operate. In another embodiment, the adjusting part 42 is set as a stud, and the corresponding operating part 41 is set as a crank. The stud is rotated by rotating the crank to achieve up and down movement. It should be noted that the adjusting part 42 is opposite to the detection port 21 up and down to make the working chamber 11 more airtight.
[0044] Based on the fact that the direct reading spectrometer needs to be disassembled when detecting different samples P, in order to facilitate disassembly and assembly, the lower end of the connecting rod 31 is provided with an opening extending along its length direction, and the sample positioning tool 100 is provided with a telescopic device (not shown in the figure), which can be installed in the opening in a telescopic manner up and down. The specific form of the telescopic device is not limited here, and can be in the form of a ball screw or a threaded screw, as long as the telescopic function can be achieved.
[0045] Specifically, in the present embodiment, a fixing hole connected to the opening is provided on the side of the connecting rod 31, and the fixing hole is arranged as a threaded hole. The telescopic device comprises a movable rod and a fixing mechanism, and the movable rod is sleeved in the opening; the fixing mechanism is passed through the threaded hole and matched with the threaded hole, and is used to tighten the movable rod located in the opening. Specifically, the fixing mechanism is arranged as a bolt with a hexagonal screw head at the top, and the movable rod is fixed in the fixing hole by rotating the top of the bolt so that its bottom end abuts against the movable rod. This adjustment method is simple and reliable. In other embodiments, the fixing mechanism may also be a screw with a crank at the top.
[0046] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.
Claims
1. A sample positioning tool, characterized in that: include: A shell body, wherein the shell body forms a working chamber with an open end; A base, arranged at the bottom of the working chamber, and a detection port is arranged on the base; At least two support assemblies are installed on the base, wherein the two support assemblies are spaced apart and arranged on both sides of the detection port, and a placement groove is formed on the top of the support assembly, and the placement groove is used for placing the sample along the length direction of the placement groove so that the sample and the detection port are opposite to each other up and down; A cover body, which is disposed on the open end of the working chamber to seal the working chamber; as well as, The pressing piece is movably mounted on the cover body and has a stroke of approaching and moving away from the supporting assembly, so as to clamp and release the sample respectively.
2. The sample positioning tool as claimed in claim 1, characterized in that: The support assembly includes a connecting rod extending in a vertical direction, one end of the connecting rod is fixed to the base, and the other end is connected to a support plate, the support plate is used to extend along the length direction of the sample, and the support plate is respectively fixed with limit plates on both sides along the width direction, the limit plates extend in a direction away from the support plate, and the limit plates and the support plate form the placement groove.
3. The sample positioning tool as claimed in claim 2, characterized in that: The limiting plate is provided with a plurality of mounting holes along the length direction of the supporting plate, and the plurality of mounting holes are arranged at intervals along the length direction of the limiting plate. The supporting assembly further comprises an adjusting member, and the adjusting member is movably installed in the mounting holes.
4. The sample positioning tool as claimed in claim 2, characterized in that: A ruler is fixed on the support plate, and the ruler is arranged along the width direction of the support plate.
5. The sample positioning tool according to any one of claims 1 to 4, characterized in that: The supporting components are provided in two numbers, and the two supporting components are symmetrically arranged on both sides of the detection port.
6. The sample positioning tool as claimed in claim 1, characterized in that: The inner side surface of the placement groove is at least partially elastic; and / or, The pressing element is at least partially elastic.
7. The sample positioning tool as claimed in claim 1, characterized in that: A cover plate is arranged above the cover body, a through hole is opened in the cover plate corresponding to the cover body, and the pressing piece is movably installed in the through hole.
8. The sample positioning tool as claimed in claim 7, characterized in that: The pressing member comprises an operating part and an adjusting part, wherein the operating part is arranged outside the shell, and the adjusting part is movably inserted into the through hole to extend into the working cavity.
9. The sample positioning tool as claimed in claim 2, characterized in that: The lower end of the connecting rod is provided with an opening extending along the length direction thereof. The sample positioning tool further comprises a telescopic device, and the telescopic device can be telescopically installed in the opening up and down.
10. The sample positioning tool as claimed in claim 9, characterized in that: A fixing hole connected to the opening is provided on the side of the connecting rod, and the telescopic device comprises: A movable rod is installed in the opening so as to be movable up and down; and The fixing mechanism is passed through the fixing hole and is used for pressing against the movable rod located in the opening.