Auxiliary clamp for processing oxygen-nitrogen sample

Abstract

The utility model discloses a fixture for assisting in processing an oxygen-nitrogen sample, which comprises two semi-circular clamping blocks and a sleeve, the two semi-circular clamping blocks are matched to form a cylinder, the cylinder is matched with the sleeve in size and can be inserted into the sleeve, a clamping seam is arranged on the side surface of the sleeve, and the clamping seam is matched with the sleeve in size. The matching surfaces of the two semicircular clamping blocks are provided with oxygen and nitrogen sample placing grooves, the sizes of the placing grooves are matched with the sizes of oxygen and nitrogen samples, and the front ends of the semicircular clamping blocks are provided with limiting edges. The device is simple in structure, safe and reliable, the purpose that a sample is turned into a sample for oxygen and nitrogen analysis is achieved, the sample machining safety is improved, and the oxygen and nitrogen analysis accuracy is improved.

Description

Technical Field

[0001] The utility model relates to the field of oxygen and nitrogen analysis in steel production, in particular to a clamp for auxiliary oxygen and nitrogen sample processing. Background Art

[0002] At present, steel enterprises have basically realized the use of automatic samplers to take samples of chemical composition of steelmaking. Sampling is usually done from the converter tundish and ladle. The sample is a round cake with a handle, similar in shape to a table tennis racket. In order to save materials, one sample can be used for a variety of tests and analyses, including oxygen and nitrogen analysis. The original oxygen and nitrogen analysis sampling was carried out on the continuous casting billet. The sample was rectangular and was processed, which affected the yield of the billet and required secondary sampling. The use of chemical analysis samples for oxygen and nitrogen analysis avoids sampling on the billet. The oxygen and nitrogen samples require the long handle to be smooth. The original processing method was for workers to hand-grind, but this method would leave powder on the sample, affecting the accuracy of the oxygen and nitrogen analysis results. In addition, the handle of the sample is short, so there are certain safety hazards when workers hand-grind.

[0003] Now we want to use a machine tool to turn the sample to obtain an oxygen and nitrogen analysis sample. The sample cannot be turned directly, so a fixture for sample processing is needed. Utility Model Content

[0004] In order to overcome the above-mentioned deficiencies in the prior art, the utility model provides a fixture for auxiliary oxygen and nitrogen sample processing.

[0005] The technical solution adopted by the utility model is: a clamp for auxiliary oxygen and nitrogen sample processing, including a semicircular clamping block and a sleeve, wherein two semicircular clamping blocks are provided, and the two semicircular clamping blocks cooperate to form a cylinder, and the cylinder is adapted to the size of the sleeve and can be inserted into the sleeve, and a clamping seam is provided on the side of the sleeve, and oxygen and nitrogen sample placement grooves are provided on the matching surfaces of the two semicircular clamping blocks, and the size of the placement grooves is adapted to the size of the oxygen and nitrogen sample, and a limited position edge is provided at the front end of the semicircular clamping block;

[0006] Furthermore, one or both of the two semicircular clamping blocks are provided with a clamping mechanism;

[0007] Furthermore, the clamping mechanism includes a clamping block, a spring, and a bolt. The clamping block is arranged below the circular part of the placement groove. The lower end surface of the clamping block is connected to the spring. The semicircular clamping block corresponding to the clamping block is provided with a channel for the clamping block to slide. A sliding track is provided on the inner wall of the channel. The clamping block is provided with a slider that cooperates with the sliding track. A bolt is provided below the channel, the bolt abuts against the spring, and a avoidance hole is provided on the sleeve for the bolt.

[0008] The utility model provides two semicircular clamping blocks and sample placement grooves on the semicircular clamping blocks, so that the sample can be fixed after the two semicircular clamping blocks are fixed in position; a sleeve is provided and a clamping slit is opened so that the two semicircular clamping blocks are placed in the sleeve, and the entire device is installed in a machine tool workpiece clamping device, and the sleeve is clamped by the clamping device to clamp the two semicircular clamping blocks.

[0009] The utility model has the advantages of simple structure, safety and reliability, and realizes the turning of samples into samples for oxygen and nitrogen analysis, thereby improving the safety of sample processing and the accuracy of oxygen and nitrogen analysis. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of the structure of the utility model.

[0011] Figure 2 This is a schematic diagram of the sleeve structure of the utility model.

[0012] Figure 3 This is a schematic diagram of the semicircular clamp structure of the utility model.

[0013] Figure 4 This is a schematic diagram of the structure of the clamping mechanism of the utility model.

[0014] In the figure: 1. semicircular clamping block, 11. oxygen and nitrogen sample placement groove, 12. limiting edge, 2. sleeve, 21. clamping gap, 22. avoidance hole, 3. clamping mechanism, 31. clamping block, 32. spring, 33. bolt, 34. slider. DETAILED DESCRIPTION

[0015] In order to more clearly understand the technical solution of the present invention, the present invention is further described below in conjunction with the accompanying drawings.

[0016] like Figure 1-Figure 4 As shown, a fixture for auxiliary oxygen and nitrogen sample processing includes a semicircular clamping block 1 and a sleeve 2. Two semicircular clamping blocks 1 are provided. The two semicircular clamping blocks 1 cooperate to form a cylinder. The cylinder is adapted to the sleeve 2 in size and can be inserted into the sleeve 2. A clamping slit is provided on the side of the sleeve 2. When the sleeve 2 is clamped by the machine tool, the sleeve 2 is deformed under the action of the clamping force due to the setting of the compression slit 21. The two semicircular clamping blocks 1 are clamped therein. Oxygen and nitrogen sample placement grooves 11 are provided on the matching surfaces of the two semicircular clamping blocks 1. The size of the placement grooves is adapted to the size of the oxygen and nitrogen sample. After the two semicircular clamping blocks 1 are placed in the sleeve 2 and compressed, the sample in the placement groove can be compressed. A limited position edge 12 is provided at the front end of the semicircular clamping block 1.

[0017] Preferably, one or both of the two semicircular clamping blocks 1 are provided with a clamping mechanism 3, which can assist the machine tool clamping device to clamp the sample. When the oxygen and nitrogen sample placement groove 11 is worn out after long-term use, the clamping mechanism 3 can prevent the semicircular clamping block 1 from being placed in the sleeve 2 and before being clamped by the machine tool clamping device, thereby preventing the sample from moving in the sample placement groove and affecting subsequent processing.

[0018] Preferably, the clamping mechanism 3 includes a clamping block 31, a spring 32, and a bolt 33. The clamping block 31 is arranged below the circular part of the placement groove. The lower end surface of the clamping block 31 is connected to the spring 32. The semicircular clamping block 1 corresponding to the clamping block 31 is provided with a channel for the clamping block 31 to slide. A sliding track is provided on the inner wall of the channel. The non-through sliding track plays a limiting role for the clamping block 31. A slider 34 cooperating with the sliding track is provided on the clamping block 31. A bolt 33 is provided below the channel. The bolt 33 abuts against the spring 32. A avoidance hole 22 is provided on the sleeve 2 for the bolt 33.

[0019] When in use, first place the oxygen-nitrogen sample of one semicircular clamp block 1 into the oxygen-nitrogen sample placement groove 11, then close the other semicircular clamp block 1, assemble the two semicircular clamp blocks 1 and put them into the sleeve 2, align the avoidance hole 22 with the bolt 33 during installation, use a tool to tighten the bolt 33 through the avoidance hole 22 on the sleeve 2, so that the clamping block 31 presses the oxygen-nitrogen sample, and finally install the sleeve 2 into the clamping device of the oxygen-nitrogen sample processing machine tool, and after clamping, process the oxygen-nitrogen sample.

[0020] The above description is only a preferred embodiment of the present utility model, so all equivalent changes or modifications made according to the structure, features and principles described in the scope of the present utility model patent application are included in the scope of the present utility model patent application.

Claims

1. A fixture for auxiliary oxygen and nitrogen sample processing, characterized in that: It comprises a semicircular clamping block and a sleeve, wherein two semicircular clamping blocks are provided, and the two semicircular clamping blocks cooperate to form a cylinder, and the cylinder is adapted to the size of the sleeve and can be inserted into the sleeve, and a clamping seam is provided on the side of the sleeve, and oxygen and nitrogen sample placement grooves are provided on the matching surfaces of the two semicircular clamping blocks, and the size of the placement grooves is adapted to the size of the oxygen and nitrogen samples, and a limited position edge is provided at the front end of the semicircular clamping block.

2. The auxiliary oxygen and nitrogen sample processing fixture according to claim 1 is characterized in that: One or both of the two semicircular clamping blocks are provided with a clamping mechanism.

3. A fixture for auxiliary oxygen and nitrogen sample processing according to claim 2, characterized in that: The clamping mechanism includes a clamping block, a spring, and a bolt. The clamping block is arranged below the circular part of the placement groove. The lower end surface of the clamping block is connected to the spring. The semicircular clamping block corresponding to the clamping block is provided with a channel for the clamping block to slide. A sliding track is provided on the inner wall of the channel. The clamping block is provided with a slider that cooperates with the sliding track. A bolt is provided below the channel, the bolt abuts against the spring, and a avoidance hole is provided on the sleeve for the bolt.

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