Testing device for milling, grinding and leveling of steel billet macroscopic sample

Abstract

The utility model relates to the technical field of steel analysis, in particular to a test device for milling and leveling a steel billet macroscopic sample, which comprises a milling machine table, an irregular steel plate, a threaded rod, a first nut, a first wedge-shaped cushion block, a second nut and a second wedge-shaped cushion block, movable grooves are formed in the interiors of the two bases, double-end lead screws are movably connected to the interiors of the two movable grooves, rotating shafts penetrating through the bases are fixedly connected to one ends of the two double-end lead screws, and threaded blocks are connected to the left sides and the right sides of the exteriors of the two double-end lead screws in a meshed and sleeved mode; according to the test device for milling, grinding and leveling the low-power sample of the steel billet, disclosed by the utility model, the problems of milling and grinding difficulties caused by thickness errors of the sample are solved, the safety risk caused by manually hitting a wedge-shaped cushion block is reduced, and the stability in the sample processing process is ensured, so that the quality and the efficiency of milling and grinding the steel billet sample are ensured and improved.

Description

Technical Field

[0001] This utility model belongs to the field of steel analysis technology, specifically relating to a test device for milling and leveling low-magnification steel billet samples. Background Technology

[0002] With the continuous development of the steel metallurgy industry, the requirements for low-magnification tests on steel billets are becoming increasingly stringent. In the low-magnification test process, the steel billet sample must first be milled using machine tools before the milled surface can be subjected to acid corrosion test. Therefore, the prepared sample must be guaranteed to have a smooth and flat surface with a roughness of ≤0.8 micrometers to meet the acid corrosion test conditions.

[0003] However, in actual production, the existing testing equipment for milling and leveling low-magnification steel billet samples often results in a thickness error of more than 5mm due to continuous adjustments in the production process. This makes it difficult to control the cutting distance and depth of the milling cutter after the sample is placed on the milling machine, reducing the sample processing time. In order to ensure that the sample is milled flat, the current method is to use wedge-shaped steel pads for support and leveling. The problem is that the size and thickness are difficult to adjust. After the sample is placed in the milling groove of the equipment, it needs to be manually hammered in, which increases the safety risks of injury and hand pinching. The labor intensity is high and the work efficiency is low. The sample may loosen during vibration. Utility Model Content

[0004] To overcome the limitations of existing leveling test devices in ensuring the leveling of irregular steel plates, the difficulty in adjusting the thickness of wedge-shaped steel pads, the need for manual hammering which poses certain safety hazards and can easily cause loosening during the sample preparation process.

[0005] The technical solution of this utility model is as follows: a test device for milling and leveling low-magnification steel billet samples, including a milling machine worktable, an irregular steel plate, a threaded rod, a first nut, a first wedge-shaped pad, a second nut, and a second wedge-shaped pad. Bases are provided on both the left and right sides above the milling machine worktable. Movable grooves are opened inside both bases, and double-ended lead screws are movably connected inside both grooves. One end of each double-ended lead screw is fixedly connected to a rotating shaft penetrating the base. The left and right sides of the two double-ended lead screws are engaged with each other. There are threaded blocks, and threaded rods are fixedly connected to the upper end faces of the four threaded blocks. Irregular steel plates are sleeved on the outside of the four threaded rods. The four ends of the irregular steel plates are provided with first wedge-shaped pads that are sleeved on the outside of the four threaded rods. The four first wedge-shaped pads are provided with second nuts that are engaged and sleeved on the outside of the four threaded rods. The four ends of the irregular steel plates are provided with second wedge-shaped pads that are sleeved on the outside of the four threaded rods. The four second wedge-shaped pads are provided with first nuts that are engaged and sleeved on the outside of the four threaded rods.

[0006] Preferably, the leveling device is placed on the milling machine worktable, and then the sample is placed on the irregular steel plate. The left and right heights are determined by visual inspection or a spirit level. Then, the first nut is loosened or tightened with an adjustable wrench to adjust the height. Once the sample is level, the milling machine is started to clamp the side of the sample and begin milling.

[0007] Preferably, the milling machine worktable has multiple evenly arranged T-shaped mounting grooves inside, and the lower end faces of the two bases are fixedly connected with T-shaped mounting sliders that slide into the T-shaped mounting grooves.

[0008] Preferably, the upper surface of the milling machine worktable has multiple evenly arranged threaded holes, and the two bases are fixed to the milling machine worktable by engaging with the threaded holes using fixing bolts.

[0009] Preferably, a handle is fixedly connected to the front end of the shaft, and an anti-slip pad is fitted onto the outside of the handle.

[0010] Preferably, both the first and second wedge-shaped pads have through holes inside, and the four threaded rods pass through the two first wedge-shaped pads and the two second wedge-shaped pads respectively through the through holes.

[0011] Preferably, one side of the double-ended lead screw is rotatably connected to a coupling located inside the movable groove.

[0012] Preferably, limit blocks are provided on the upper end faces of all four threaded rods.

[0013] The beneficial effects of this utility model are:

[0014] 1. This experimental device for milling and leveling low-magnification steel billet samples involves placing the device on the milling machine table, placing the sample on an irregular steel plate, and adjusting the tightness of the first nut with a wrench. To ensure the surface is level, a spirit level can be placed during the adjustment process, making fine-tuning more precise, convenient, and faster. This solves the problem of unevenness caused by vibration during the milling process. The second wedge-shaped pad eliminates the safety risks of injury and hand pinching caused by solid pads (made of steel), thereby protecting the occupational health of employees and laying the foundation for sample preparation.

[0015] 2. This test device for milling and leveling low-magnification steel billet samples can drive the threaded blocks meshed on the left and right sides to move by rotating the double-ended lead screw, thereby moving the threaded rod. The distance between the threaded rods can be adjusted according to the size of the irregular steel plate, making it more flexible. Attached Figure Description

[0016] Figure 1 The diagram shown is a three-dimensional structural schematic of the test device for milling and leveling low-magnification steel billet samples according to this utility model.

[0017] Figure 2The image shown is a front view of the three-dimensional structure of the test device for milling and leveling low-magnification steel billet samples according to this utility model.

[0018] Figure 3 This utility model is shown. Figure 2 A magnified schematic diagram of the three-dimensional structure at point A;

[0019] Figure 4 The view shown is a three-dimensional side view of the test device for milling and leveling low-magnification steel billet samples according to this utility model.

[0020] Figure 5 The diagram shown is a three-dimensional structural schematic of the wedge-shaped pad of this utility model.

[0021] Explanation of reference numerals in the attached drawings: 1. Milling machine worktable; 2. T-shaped mounting groove; 3. Threaded hole; 4. Base; 5. Threaded rod; 6. Irregular steel plate; 7. First wedge-shaped pad; 8. T-shaped mounting slider; 9. Fixing bolt; 10. Handle; 11. Movable groove; 12. Double-ended lead screw; 13. Threaded block; 14. First nut; 15. Second wedge-shaped pad; 16. Second nut; 17. Through hole. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0023] Please see Figures 1-5 This utility model provides an embodiment: a test device for milling and leveling low-magnification steel billet samples, including a milling machine worktable 1, an irregular steel plate 6, a threaded rod 5, a first nut 14, a first wedge-shaped pad 7, a second nut 16, and a second wedge-shaped pad 15. Bases 4 are provided on both the left and right sides above the milling machine worktable 1. Each base 4 has a movable groove 11 inside, and a double-ended lead screw 12 is movably connected inside each of the two movable grooves 11. One end of each double-ended lead screw 12 is fixedly connected to a rotating shaft that passes through the base 4, and the left and right sides of the two double-ended lead screws 12 are engaged. Each of the four threaded blocks 13 is fitted with a threaded rod 5 fixedly connected to its upper end face. An irregular steel plate 6 is fitted around the four threaded rods 5. A first wedge-shaped pad 7 is fitted around the four ends of the irregular steel plate 6 and fitted around the four threaded rods 5. A second nut 16 is fitted around the four threaded rods 5 and engaged with them. A second wedge-shaped pad 15 is fitted around the four ends of the irregular steel plate 6 and fitted around the four threaded rods 5. A first nut 14 is fitted around the four threaded rods 5 and engaged with them.

[0024] Please see Figures 1-2In this embodiment, the milling machine worktable 1 has multiple evenly arranged T-shaped mounting grooves 2 inside. The lower end faces of the two bases 4 are fixedly connected with T-shaped mounting sliders 8 that slide into the T-shaped mounting grooves 2. The upper end face of the milling machine worktable 1 has multiple evenly arranged threaded holes 3. The two bases 4 and the milling machine worktable 1 are fixed by engaging with the threaded holes 3 with fixing bolts 9. The sliding installation of the bases 4 facilitates both disassembly and installation, improving work efficiency. The leveling device is placed on the milling machine worktable 1 and fixed by sliding the T-shaped mounting sliders 8 into the T-shaped mounting grooves 2 inside the milling machine worktable 1. After fixing, it is further reinforced by fixing bolts 9. The sample is placed on the irregular steel plate 6, and the left and right heights are determined by visual inspection or a level. Then, the first nut 14 under the irregular steel plate 6 is loosened with an adjustable wrench to adjust the height. At the same time, the second wedge-shaped pad 15 is at the bottom of the irregular steel plate 6 above the first nut 14, improving safety.

[0025] Please see Figures 3-5 In this embodiment, a handle 10 is fixedly connected to the front end of the rotating shaft. An anti-slip pad, made of rubber, is fitted onto the outside of the handle 10, greatly enhancing friction and providing anti-slip protection. Through holes 17 are provided inside the first wedge-shaped pad 7 and the second wedge-shaped pad 15. Four threaded rods 5 pass through the through holes 17 to the two first wedge-shaped pads 7 and the two second wedge-shaped pads 15 respectively. A coupling located inside the movable groove 11 is rotatably connected to one side of the double-ended screw 12. Limit blocks are provided on the upper surfaces of the four threaded rods 5. The irregular steel plate 6 has suitable length and width dimensions and a thickness of 8-16mm. All four threaded rods 5... The diameter is 18mm and the length is 50mm. The openings of the first nut 14 and the second nut 16 are both 18mm. The through holes 17 of the first wedge pad 7 and the second wedge pad 15 are both 18mm. After leveling, the milling machine is started to clamp the side of the sample and start milling. This can effectively ensure the milling surface of the tool during the milling process, which is conducive to improving quality and efficiency until the entire sample processing is completed. The rotation of the double-ended lead screw 12 can drive the threaded blocks 13 meshed on the left and right sides to move, which in turn drives the threaded rod 5 to move. The distance between the threaded rods 5 can be adjusted according to the size of the irregular steel plate 6, which is more flexible.

[0026] During operation, the leveling device is placed on the milling machine table 1 and fixed by sliding the T-shaped mounting slider 8 into the T-shaped mounting groove 2 inside the milling machine table 1. After fixing, it is further reinforced by fixing bolts 9. The sample is placed on the irregular steel plate 6, and the left and right height is determined by visual inspection or a spirit level. Then, the first nut 14 under the irregular steel plate 6 is loosened with an adjustable wrench to adjust the height. At the same time, the second wedge-shaped pad 15 is at the bottom of the irregular steel plate 6 above the first nut 14, which improves safety. After leveling, the milling machine is started to clamp the side of the sample and start milling. This can effectively ensure the milling surface of the tool during the milling process, which is conducive to improving quality and efficiency until the entire sample processing is completed. The rotation of the double-ended lead screw 12 can drive the threaded blocks 13 meshed on the left and right sides to move, which in turn drives the threaded rod 5 to move. The distance between the threaded rods 5 can be adjusted according to the size of the irregular steel plate 6, which is more flexible.

[0027] Through the above steps, by placing the device on the milling machine worktable 1 and the sample on the irregular steel plate 6, the tightness of the first nut 14 can be adjusted with a wrench. To ensure the surface is level, a spirit level can be placed during the adjustment process. The fine adjustment distance is more accurate, convenient and quick. This solves the problems that existing leveling test devices cannot guarantee the leveling of irregular steel plates, the thickness of wedge-shaped steel pads is difficult to adjust and needs to be manually hammered in, which poses certain safety hazards and is prone to loosening during the sample preparation process.

Claims

1. A testing device for low-magnification sample milling and grinding leveling of a steel billet, comprising a milling machine worktable (1), characterized in that: It also includes an irregular steel plate (6), a threaded rod (5), a first nut (14), a first wedge-shaped pad (7), a second nut (16), and a second wedge-shaped pad (15). Bases (4) are provided on both the left and right sides above the milling machine worktable (1). Movable grooves (11) are provided inside both bases (4). Double-ended lead screws (12) are movably connected inside both movable grooves (11). One end of each double-ended lead screw (12) is fixedly connected to a rotating shaft that passes through the base (4). Threaded blocks (13) are meshed and sleeved on both the left and right sides of the two double-ended lead screws (12). The upper surfaces of the four threaded blocks (13)... Each of the four threaded rods (5) is fixedly connected to a threaded rod (5). An irregular steel plate (6) is sleeved on the outside of the four threaded rods (5). The four ends of the irregular steel plate (6) are each equipped with a first wedge-shaped pad (7) that is sleeved on the outside of the four threaded rods (5). The four first wedge-shaped pads (7) are each equipped with a second nut (16) that is engaged with the outside of the four threaded rods (5). The four ends of the irregular steel plate (6) are each equipped with a second wedge-shaped pad (15) that is sleeved on the outside of the four threaded rods (5). The four second wedge-shaped pads (15) are each equipped with a first nut (14) that is engaged with the outside of the four threaded rods (5).

2. The testing device for the low-magnification sample milling and grinding leveling of the billet according to claim 1, characterized in that: The milling machine worktable (1) has multiple evenly arranged T-shaped mounting grooves (2) inside, and the lower end faces of the two bases (4) are fixedly connected with T-shaped mounting sliders (8) that slide into the T-shaped mounting grooves (2).

3. The testing device for the low-magnification sample milling and grinding leveling of the billet according to claim 1, characterized in that: The upper surface of the milling machine worktable (1) is provided with multiple evenly arranged threaded holes (3), and the two bases (4) are engaged with the milling machine worktable (1) by fixing bolts (9) and locked into the threaded holes (3).

4. The testing device for the low-magnification sample milling and grinding leveling of the billet according to claim 1, characterized in that: A handle (10) is fixedly connected to the front end of the shaft, and an anti-slip pad is sleeved on the outside of the handle (10).

5. The testing apparatus for milling and leveling low-magnification steel billet samples according to claim 1, characterized in that: Both the first wedge-shaped pad (7) and the second wedge-shaped pad (15) have through holes (17) inside. The four threaded rods (5) pass through the two first wedge-shaped pads (7) and the two second wedge-shaped pads (15) respectively through the through holes (17).

6. The testing device for low-magnification sample milling and grinding leveling of a billet according to claim 1, characterized in that: One side of the double-ended lead screw (12) is rotatably connected to a coupling located inside the movable groove (11).

7. The testing device for low-magnification sample milling and grinding leveling of a billet according to claim 1, characterized in that: Limit blocks are provided on the upper end face of the four threaded rods (5).

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