CN212600270U - Auxiliary fixture for processing cylindrical oxygen and nitrogen samples - Google Patents
Auxiliary fixture for processing cylindrical oxygen and nitrogen samples Download PDFInfo
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- CN212600270U CN212600270U CN202020521945.9U CN202020521945U CN212600270U CN 212600270 U CN212600270 U CN 212600270U CN 202020521945 U CN202020521945 U CN 202020521945U CN 212600270 U CN212600270 U CN 212600270U
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- clamp
- mounting groove
- processing
- jig
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- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 title claims description 22
- 229910052757 nitrogen Inorganic materials 0.000 title claims description 11
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 title claims description 10
- 239000001301 oxygen Substances 0.000 title claims description 10
- 229910052760 oxygen Inorganic materials 0.000 title claims description 10
- OLBVUFHMDRJKTK-UHFFFAOYSA-N [N].[O] Chemical compound [N].[O] OLBVUFHMDRJKTK-UHFFFAOYSA-N 0.000 claims abstract description 30
- 125000006850 spacer group Chemical group 0.000 claims description 2
- 229910000831 Steel Inorganic materials 0.000 abstract description 15
- 239000010959 steel Substances 0.000 abstract description 15
- 238000000034 method Methods 0.000 abstract description 14
- 238000005516 engineering process Methods 0.000 abstract description 5
- 238000005070 sampling Methods 0.000 abstract description 5
- 239000000523 sample Substances 0.000 description 86
- 238000007514 turning Methods 0.000 description 7
- 238000004458 analytical method Methods 0.000 description 6
- 238000005520 cutting process Methods 0.000 description 5
- 238000002474 experimental method Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000010453 quartz Substances 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 229910000727 Fe4N Inorganic materials 0.000 description 1
- NRTOMJZYCJJWKI-UHFFFAOYSA-N Titanium nitride Chemical compound [Ti]#N NRTOMJZYCJJWKI-UHFFFAOYSA-N 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 210000000078 claw Anatomy 0.000 description 1
- PMHQVHHXPFUNSP-UHFFFAOYSA-M copper(1+);methylsulfanylmethane;bromide Chemical compound Br[Cu].CSC PMHQVHHXPFUNSP-UHFFFAOYSA-M 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
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- Sampling And Sample Adjustment (AREA)
Abstract
The utility model relates to a supplementary anchor clamps of cylindrical oxygen nitrogen sample processing belongs to the experimental system appearance processing technology field of steel chemistry. The clamp comprises an upper clamp (1), a lower clamp (2), a spring piece (3), connecting bolts (4) and a gasket (6), wherein the two connecting bolts (4) respectively penetrate through mounting holes (21) to be assembled with bolt holes (16) of the upper clamp (1) and the lower clamp (2), and the upper clamp (1) and the lower clamp (2) are assembled together through the spring piece (3). The utility model discloses make simply, rational in infrastructure, convenient operation uses safe and reliable, and application scope is wide. After the oxygen-nitrogen test sample is put into use, the processing technology of the racket-shaped oxygen-nitrogen test sample is simplified, the working procedures are reduced, the processable part at the tail of the test sample can be fully utilized, the experimental sampling data volume is increased, and the accuracy of the experimental result is enhanced.
Description
Technical Field
The utility model relates to a supplementary anchor clamps of cylindrical oxygen nitrogen sample processing belongs to the experimental system appearance processing technology field of steel chemistry.
Background
The oxygen in the steel is mainly present in the form of oxides, and the oxides polymerize to form non-metallic inclusions, which reduce ductility and increase brittleness of the steel, and seriously affect mechanical properties of the steel. Reducing the total oxygen content in steel is an important goal in producing high quality clean steel. The element nitrogen is also considered a harmful element in most steels, and the precipitation of Fe4N results in the steel's aging and blue brittleness, reducing the toughness and plasticity of the steel. Aluminum nitride, titanium nitride and other angular and brittle inclusions are not beneficial to cold and hot deformation processing of steel, and when residual nitrogen in the steel is high, the macroscopic structure of the steel is loosened and even bubbles are formed. However, a proper amount of nitrogen in the steel can promote grain refinement and improve the hardness and strength of the steel.
The sampling locations for oxygen and nitrogen analysis typically include converters, LF, tundish, crystallizer, strand, etc. The sample taken from the melt is, in terms of shape, a pail-like sample, a cake-like sample (or racket-like) and a quartz tube-like sample, and the quartz tube-like sample is generally suitable for on-line analysis. The barrel sample or the cake sample (or racket sample, hereinafter referred to as racket sample) taken from the field is transported to a laboratory, and the sample is processed into the oxygen-nitrogen bar by a turning method or a wire cutting method. The oxygen-nitrogen rod should have a smooth surface, a diameter of 5-7 mm and a length at least meeting the requirement of analysis for 3 times, wherein the sample weight is 1g each time. Whether the sample is a pail sample or a cake sample, the cutting position of the oxygen-nitrogen rod has certain influence on the analysis result.
In the production process, the sampling amount of the racket sample is large, and according to the appearance of the racket sample, oxygen and nitrogen analysis can be carried out, and spectral component analysis can also be carried out. Compared with other types of samples, the appearance is more complex and is more suitable for turning, but the traditional method for processing the racket sample has complex process and is not easy to operate. Oxygen and nitrogen are processed in a racket shape, and the tail part of the racket shape needs to be turned. When a racket sample is processed by the traditional method, the tail part of the racket needs to be cut off firstly, and then the cut tail part is clamped on a lathe of a three-grab chuck (a self-centering chuck) for lathe cutting processing, but the racket sample is directly clamped on the chuck without cutting the tail, and automatic centering can not be realized. The tail length of the racket sample obtained by the sampler is generally 3-4 cm or even shorter, and the turning process needs a processing margin, so that the processed sample cannot meet the length (2-3 cm) required by multiple detections. When the tail of the sample is too short, in order to process the sample reaching the length required by the experiment, the length of the clamping part of the chuck has to be shortened during processing, and the sample is easy to loosen or fly out of the chuck during the processing process when the tail of the sample is too short, so that the sample is wasted, the cutter is damaged, and even the sample is hurt.
Aiming at the defects of the existing racket sample processing mode, the auxiliary clamp for processing the cylindrical oxygen-nitrogen sample is required to be designed, so that the racket sample can be integrally clamped on the three-grab chuck through the clamp, and the turning processing can be directly carried out after the alignment is adjusted. The tail cutting procedure is omitted, the machining allowance is increased, the length of the tail part of the racket sample can be fully utilized, and the part which is as long as possible and can be used for experiments is machined directly on the tail part of the racket sample.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a cylindrical oxygen nitrogen sample processing auxiliary clamp realizes wholly pressing from both sides through this anchor clamps to the racket appearance and grabs the chuck on three to adjustable directly carry out lathe work behind the centering, process out as long as possible cylindrical oxygen nitrogen sample that can supply the experiment to use.
In order to achieve the above object, the utility model provides a following technical scheme: a cylindrical oxygen nitrogen sample processing auxiliary clamp comprises an upper clamp, a lower clamp, a spring piece, a connecting bolt and a gasket, wherein the upper clamp is a regular quadrangular prism with a trapezoidal section, the upper end surface of the quadrangular prism is an upper mounting surface and is provided with a bolt hole, and the largest side surface of the quadrangular prism is an upper working surface; the lower clamp is a cuboid, the largest side face of the cuboid is a lower working face, the side face adjacent to the lower working face is a lower mounting face, and bolt holes are formed in the lower mounting face; the spring piece is in a shape like a Chinese character 'ji', mounting holes are formed in two ends of the spring piece, two connecting bolts respectively penetrate through the mounting holes to be assembled with bolt holes of the upper clamp and the lower clamp, and the upper clamp and the lower clamp are assembled together through the spring piece. The gasket is a circular sheet-shaped body, and the diameter of the gasket is matched with that of the racket.
As described above, the auxiliary jig for processing a cylindrical oxygen-nitrogen sample is provided with the upper sample mounting groove on the upper working surface, the upper portion of the mounting groove is semicircular and the width of the mounting groove matches with the diameter of the racket sample, the lower working surface is provided with the lower sample mounting groove, and the shape and size of the mounting groove matches with the upper sample mounting groove.
In the above-described auxiliary jig for processing an oxygen-nitrogen sample, the upper sample mounting groove is provided with a concentric circular upper allowance groove at a center of a semicircular top end thereof, and the lower sample mounting groove is provided with a concentric circular lower allowance groove at a center of a semicircular top end thereof.
In the auxiliary jig for processing the cylindrical oxygen-nitrogen sample, the included angle between the two oblique sides and the bottom side of the upper clamping trapezoidal section is 60 degrees.
In the cylindrical oxygen-nitrogen sample processing auxiliary clamp, two edges of the side surface of the lower clamp opposite to the lower working surface, which are perpendicular to the lower mounting surface, are chamfered by 30-40 mm.
In the above-described cylindrical oxygen and nitrogen sample processing auxiliary jig, the depth of the upper sample mounting groove and the lower sample mounting groove is 1.3 to 1.6 mm.
In the above-described auxiliary jig for processing an oxygen and nitrogen sample, the depth of the upper allowance groove and the lower allowance groove is 0.8 to 1.2 mm.
In the above-described cylindrical oxygen-nitrogen sample processing auxiliary jig, the diameters of the upper and lower allowance grooves are 10 to 15 mm smaller than the diameters of the tip semicircles of the upper and lower sample mounting grooves.
The thickness of the gasket is 0.4 to 2 mm in the cylindrical oxygen nitrogen sample processing auxiliary jig.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model discloses make simply, rational in infrastructure, convenient operation uses safe and reliable, and application scope is wide. After the oxygen-nitrogen test sample is put into use, the processing technology of the racket-shaped oxygen-nitrogen test sample is simplified, the working procedures are reduced, the processable part at the tail of the test sample can be fully utilized, the experimental sampling data volume is increased, and the accuracy of the experimental result is enhanced.
Drawings
FIG. 1 is a schematic view of the apparatus of the present invention;
FIG. 2 is a racquet-like schematic view;
figure 3 schematic diagram of the utility model device gasket;
figure 4 is a schematic view of the utility model device top clip;
fig. 5 is a schematic view of the lower clamp of the present invention;
FIG. 6 is a schematic view of the spring plate of the present invention;
FIG. 7 is a schematic view of sample processing by the present invention;
labeled as: the device comprises an upper clamp 1, a lower clamp 2, a spring piece 3, a connecting bolt 4, a lower sample mounting groove 5, a gasket 6, a racket sample 7, a processed sample 8, a three-grab chuck 9, a clamping jaw 10, a lathe center 11, a turning tool 12, an upper sample mounting groove 13, an upper allowance groove 14, a lower allowance groove 15, a bolt hole 16, an upper mounting surface 17, an upper working surface 18, a lower mounting surface 19, a lower working surface 20 and a mounting hole 21.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
As shown in the attached drawings, the cylindrical oxygen-nitrogen sample processing auxiliary clamp comprises an upper clamp 1, a lower clamp 2, a spring piece 3, a connecting bolt 4 and a gasket 6, wherein the upper clamp 1 is a regular quadrangular prism with a trapezoidal section, the upper end surface of the quadrangular prism is an upper mounting surface 17 and is provided with a bolt hole 16, and the largest side surface of the quadrangular prism is an upper working surface 18; the lower clamp 2 is a cuboid, the largest side face of the cuboid is a lower working face 20, the side face adjacent to the lower working face 20 is a lower mounting face 19, and a bolt hole 16 is formed in the lower mounting face 19; the spring piece 3 is in a shape like a Chinese character 'ji', mounting holes 21 are formed in two ends of the spring piece 3, two connecting bolts 4 respectively penetrate through the mounting holes 21 to be assembled with the bolt holes 16 of the upper clamp 1 and the lower clamp 2, and the upper clamp 1 and the lower clamp 2 are assembled together through the spring piece (3). The gasket 6 is a circular sheet-shaped body, and the diameter of the gasket is matched with that of the racket sample 7.
The upper working surface 18 is provided with an upper sample mounting groove 13, the upper part of the mounting groove 13 is semicircular, the width of the mounting groove is matched with the diameter of the racket sample 7, the lower working surface 20 is provided with a lower sample mounting groove 5, and the shape and the size of the mounting groove 5 are matched with the upper sample mounting groove 13.
The central part of the semicircular top end of the upper sample mounting groove 13 is provided with a concentric circular upper allowance groove 14, and the central part of the semicircular top end of the lower sample mounting groove 5 is provided with a concentric circular lower allowance groove 15.
The included angle between the two oblique sides of the trapezoidal section of the upper clamp 1 and the bottom side is 60 degrees.
Two edges of the side surface of the lower clamp 2 opposite to the lower working surface 20, which are perpendicular to the lower mounting surface 19, are chamfered by 35 mm. The depths of the upper sample mounting groove 13 and the lower sample mounting groove 5 are 1.5 mm. The depth of the upper allowance groove 4 and the lower allowance groove 15 is 1.5 mm. The diameters of the upper allowance groove 14 and the lower allowance groove 15 are 12 mm smaller than the diameters of the semi-circles at the top ends of the upper sample mounting groove 13 and the lower sample mounting groove 5. The shim 6 was chosen to have two thicknesses, 0.5 mm and 1 mm respectively.
The sample processing process comprises the following steps:
the three-grab chuck 9 is turned to a position just below one of the jaws 10, and the jaws 10 are adjusted to be slightly larger than the clamp.
The clamp is placed in the chuck 9 with the spring piece 3 side facing the chuck 9 and the claws 10 below the lower plane of the lower clamp 2, and the 1-2 mm edge is exposed.
The tail part of the racket sample 7 is ground flat, the cake part is placed in the upper sample mounting groove 13 and the lower sample mounting groove 5, and the tail part faces to the tip 11.
The adjusting tip 11 is close to the tail part of the racket sample 7, the tail part of the sample is adjusted in the horizontal direction, the tail part of the sample is aligned to the center of the tip 11 in the vertical direction, and the error is less than 1 mm.
The chuck 9 is locked, and whether the alignment condition of the tail part of the racket sample 7 and the tip 11 in the vertical direction is within 1 mm or not is checked. If it exceeds 1 mm, the chuck 9 is released, the shim 6 of corresponding thickness is applied in the corresponding direction, and the chuck 9 is locked to check the centering. And after the centering is checked to be qualified, the center 9 is tightly propped, and turning is carried out according to the operation rule of the lathe.
Turning to the tail root of the racket sample 7 or stopping the lathe after the required length is reached, loosening the chuck 9 and taking down the sample 7.
The same batch of samples generally only need to be adjusted by adding a gasket for one-time up-and-down centering, and the maximum centering error is not more than 1 mm. The total thickness of the added spacers 6 should not exceed 2 mm.
The utility model discloses make simply, rational in infrastructure, convenient operation uses safe and reliable, and application scope is wide. After the oxygen-nitrogen test sample is put into use, the processing technology of the racket-shaped oxygen-nitrogen test sample is simplified, the working procedures are reduced, the processable part at the tail of the test sample can be fully utilized, the experimental sampling data volume is increased, and the accuracy of the experimental result is enhanced.
Claims (9)
1. The auxiliary clamp for processing the cylindrical oxygen-nitrogen sample is characterized by comprising an upper clamp (1), a lower clamp (2), a spring piece (3), a connecting bolt (4) and a gasket (6), wherein the upper clamp (1) is a regular quadrangular prism with a trapezoidal section, the upper end surface of the quadrangular prism is an upper mounting surface (17) and is provided with a bolt hole (16), and the largest side surface of the quadrangular prism is an upper working surface (18);
the lower clamp (2) is a cuboid, the largest side face of the cuboid is a lower working face (20), the side face adjacent to the lower working face (20) is a lower mounting face (19), and a bolt hole (16) is formed in the lower mounting face (19);
the spring piece (3) is in a shape like a Chinese character 'ji', mounting holes (21) are formed in two ends of the spring piece (3), two connecting bolts (4) respectively penetrate through the mounting holes (21) to be assembled with bolt holes (16) of the upper clamp (1) and the lower clamp (2), the upper clamp (1) and the lower clamp (2) are assembled together through the spring piece (3), and the gasket (6) is a circular sheet body, and the diameter of the gasket is matched with that of the racket (7).
2. The cylindrical oxygen and nitrogen sample processing auxiliary jig as set forth in claim 1, wherein the upper working surface (18) is provided with an upper sample mounting groove (13), the upper portion of the mounting groove (13) is semicircular and has a width matching the diameter of the racket sample (7), the lower working surface (20) is provided with a lower sample mounting groove (5), and the mounting groove (5) has a shape and a size matching the upper sample mounting groove (13).
3. The jig for assisting in processing a cylindrical oxygen nitrogen sample according to claim 2, wherein the upper sample mounting groove (13) is provided with a concentric circular upper allowance groove (14) at a center portion of a semicircular top end thereof, and the lower sample mounting groove (5) is provided with a concentric circular lower allowance groove (15) at a center portion of a semicircular top end thereof.
4. The jig for assisting in processing a cylindrical oxygen nitrogen sample according to claim 1, wherein the angle between the two oblique sides of the trapezoidal section of the upper jig (1) and the bottom side is 60 degrees.
5. The jig for assisting in processing a cylindrical oxygen nitrogen sample according to claim 1, wherein two edges of the side surface of the lower jig (2) opposite to the lower working surface (20) perpendicular to the lower mounting surface (19) are chamfered by 30 to 40 mm.
6. The cylindrical oxygen nitrogen sample processing auxiliary jig according to claim 2, wherein the depth of the upper sample mounting groove (13) and the lower sample mounting groove (5) is 1.3 to 1.6 mm.
7. The jig for assisting in processing a cylindrical oxygen nitrogen sample according to claim 3, wherein the depth of the upper allowance groove (14) and the depth of the lower allowance groove (15) are 0.8 to 1.2 mm.
8. The cylindrical oxygen nitrogen sample processing auxiliary jig of claim 3, wherein the diameters of the upper allowance groove (14) and the lower allowance groove (15) are smaller than the diameters of the tip semicircles of the upper sample mounting groove (13) and the lower sample mounting groove (5) by 10 to 15 mm.
9. The jig for assisting in processing a cylindrical oxygen nitrogen sample according to claim 1, wherein the thickness of the spacer (6) is 0.4 to 2 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020521945.9U CN212600270U (en) | 2020-04-10 | 2020-04-10 | Auxiliary fixture for processing cylindrical oxygen and nitrogen samples |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020521945.9U CN212600270U (en) | 2020-04-10 | 2020-04-10 | Auxiliary fixture for processing cylindrical oxygen and nitrogen samples |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212600270U true CN212600270U (en) | 2021-02-26 |
Family
ID=74702375
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020521945.9U Expired - Fee Related CN212600270U (en) | 2020-04-10 | 2020-04-10 | Auxiliary fixture for processing cylindrical oxygen and nitrogen samples |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212600270U (en) |
-
2020
- 2020-04-10 CN CN202020521945.9U patent/CN212600270U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210226 |