Metal cutting jig

Abstract

The invention relates to a metal cutting jig which comprises a container, a sealing cover, a movable top cover and a lifting mechanism, a containing groove is formed in the container, the sealing cover is arranged above the containing groove, a plurality of cutting holes are formed in the sealing cover, the movable top cover is arranged on the container and located above the sealing cover, and a plurality of cutting blades are arranged on the lower portion of the movable top cover. The lifting mechanism is arranged between the container and the movable top cover and drives the movable top cover to do lifting motion; wherein the cutting blades are arranged at equal intervals, the cutting blades and the cutting holes are arranged in a one-to-one correspondence mode, and when the movable top cover descends, the cutting blades penetrate through the cutting holes to enter the containing groove to evenly cut samples placed in the containing groove. The metal cutting jig is simple in structure and convenient to disassemble, metal can be cut in a molten state, a metal sample can be uniformly cut, and the problems of sample loss, chipping generation, large uniformity difference during blocking and the like caused by cutting after metal forming are solved.

Description

Technical Field

[0001] The present application relates to the field of metal cutting, and more specifically, to a metal cutting jig. Background Art

[0002] The study of radioactive lead-bismuth alloys is crucial to the development of lead-bismuth fast reactors. In the research of radionuclides, the measurement of alpha rays involves the sampling and dissolution of samples, but once the samples are dissolved, the experiment cannot be carried out. The most effective method to quantify the activity of the initial sample is to homogenize the initial sample and then sample it in proportion. The total activity of the initial sample is calculated according to the corresponding proportion after the experimental results are measured with the sampled samples. Since the quantitative initial sample activity affects the data processing and analysis of the entire experiment, it is very important to homogenize and divide the activated initial sample. It is necessary to develop a tool that can safely and evenly cut the activated initial sample. Summary of the invention

[0003] In view of the problems existing in the prior art, the present application provides a metal cutting jig that can uniformly cut radioactive lead-bismuth alloy.

[0004] The technical solution adopted by the present application to solve the technical problem is: construct a metal cutting jig, including:

[0005] A container having a receiving groove with an upper opening,

[0006] A cover is arranged above the containing groove, and a plurality of cutting holes are arranged on the cover, and the cutting holes penetrate the cover in the vertical direction.

[0007] A movable top cover is arranged on the container, the movable top cover is located above the sealing cover, and a plurality of cutting blades are arranged at the lower part of the movable top cover.

[0008] A lifting mechanism, the lifting mechanism is arranged between the container and the movable top cover, and the lifting mechanism drives the movable top cover to perform lifting movement;

[0009] The cutting blades are arranged at equal intervals, and the cutting blades are arranged one-to-one corresponding to the cutting holes. When the movable top cover is lowered, the cutting blades pass through the cutting holes and enter the containing groove to evenly cut the sample placed in the containing groove.

[0010] In some embodiments, a heating element is disposed in the container, and the heating element is used to heat the sample in the containing tank to make it enter a molten state.

[0011] In some embodiments, a thermal insulation layer is provided on the outer surface of the container.

[0012] In some embodiments, the metal cutting jig is made of a material with a melting point higher than 300°C.

[0013] In some embodiments, the container is made of stainless steel or ceramic.

[0014] In some embodiments, the cutting blade is made of stainless steel or ceramic.

[0015] In some embodiments, the height of the cutting blade is equal to the sum of the thickness of the cover and the height of the receiving groove.

[0016] In some embodiments, the lifting mechanism includes a lifting slider that can slide horizontally, and the lifting slider is arranged between the container and the movable top cover. At least one of the contact surfaces between the lifting slider and the container and the contact surfaces between the lifting slider and the movable top cover is provided with an inclined band. When the lifting slider slides horizontally, the movable top cover moves up or down driven by the inclined band.

[0017] In some embodiments, the contact surface between the lifting slider and the movable top cover is provided with a first horizontal section, the contact surface between the lifting slider and the container is provided with a second horizontal section, and the distance between the first horizontal section and the second horizontal section is the height of the lifting slider.

[0018] In some embodiments, a guide groove is provided on the lifting slide block, and a guide shaft is provided on the movable top cover corresponding to the guide groove.

[0019] The use process of the metal cutting jig of the present application is as follows: put the lead-bismuth alloy sample to be cut into the containing tank, cover it, and then install the movable top cover and the lifting mechanism. During assembly, the cutting blade corresponds to the cutting hole one by one, and the initial state of the movable top cover is a high position state away from the container; heat the lead-bismuth alloy sample in the metal cutting jig to increase its temperature until the lead-bismuth alloy sample enters a molten state; after the lead-bismuth alloy sample enters a molten state, take out the metal cutting jig and shake the liquid lead-bismuth alloy, operate the lifting mechanism to move, so that the movable top cover drives the cutting blade to fall, and after the cutting blade falls, it passes through the cutting hole into the containing tank to divide the liquid lead-bismuth alloy in the containing tank into equal parts; place the metal cutting jig in cold water for quenching to achieve rapid cooling of the lead-bismuth alloy; disassemble the metal cutting jig and take out the evenly divided sample.

[0020] The implementation of the present application has at least the following beneficial effects: the metal cutting jig of the present application can be used to split metal when it is molten, and can evenly cut metal samples of different shapes and sizes, avoiding problems such as sample loss, debris generation, and large differences in uniformity when cutting the metal after it is formed. In addition, the metal cutting jig of the present application has a simple structure, is easy to disassemble, and is easy to clean and reuse. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present application will be further described below with reference to the accompanying drawings and embodiments, in which:

[0022] Figure 1 is a schematic diagram of the structure of a metal cutting jig provided in some embodiments of the present application;

[0023] Figure 2 yes Figure 1 Exploded diagram of the metal cutting jig;

[0024] Figure 3 This is the main view of the metal cutting jig before cutting;

[0025] Figure 4 This is the left view of the metal cutting jig before cutting;

[0026] Figure 5 It is the main view of the metal cutting jig after cutting;

[0027] Figure 6 It is the left side view of the metal cutting jig after cutting.

[0028] Description of Figure Numbers:

[0029] Container 100 , accommodating groove 110 , sealing cover 200 , cutting hole 210 , movable top cover 300 , cutting blade 310 , guide shaft 320 , lifting slider 400 , first horizontal section 410 , slope section 420 , guide groove 421 , second horizontal section 430 . DETAILED DESCRIPTION

[0030] In order to have a clearer understanding of the technical features, purposes and effects of the present application, the specific implementation methods of the present application are now described in detail with reference to the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0031] In the description of the present application, it should be understood that the terms "longitudinal", "lateral", "up", "down", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings or the orientations or positional relationships in which the products of the present application are usually placed when used. They are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0032] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0033] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0034] In the present application, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0035] Figures 1 to 6 The metal cutting jig in some embodiments of the present application is shown.

[0036] like Figure 1 , Figure 2As shown, the present application provides a metal cutting jig, including a container 100, a cover 200, a movable top cover 300 and a lifting mechanism. A receiving groove 110 with an upper opening is provided in the container 100, and the receiving groove 110 is used to place the sample to be cut. Generally speaking, the receiving groove 110 is set in a regular shape, such as a rectangular groove, etc., to facilitate uniform cutting. The cover 200 is set above the receiving groove 110, and the cover 200 is used to fix the sample in the container 100. The cover 200 is provided with a plurality of cutting holes 210, and the cutting holes 210 penetrate the cover 200 in the vertical direction. The movable top cover 300 is set on the container 100 and the movable top cover 300 is located above the cover 200. A plurality of cutting blades 310 are provided at the lower part of the movable top cover 300, and the cutting blades 310 are arranged at equal intervals, and the cutting blades 310 are arranged one by one with the cutting holes 210. The lifting mechanism is arranged between the container 100 and the movable top cover 300. The lifting mechanism drives the movable top cover 300 to perform lifting movement. When the lifting mechanism drives the movable top cover 300 to descend, the cutting blade 310 passes through the cutting hole 210 and enters the receiving groove 110 to evenly cut the sample placed in the receiving groove 110. The cutting hole 210 has the function of calibrating the direction of the cutting blade 310 and preventing the cutting blade 310 from bending and being damaged.

[0037] In this embodiment, the lifting mechanism includes a lifting slider 400 that can slide horizontally, and the lifting slider 400 is arranged between the container 100 and the movable top cover 300. Figure 1 , Figure 2 , Figure 4 and Figure 6 As shown, the lifting slider 400 in this embodiment is wedge-shaped, the contact surface between the lower part of the lifting slider 400 and the container 100 is the second horizontal section 430, and the contact surface between the upper part of the lifting slider 400 and the movable top cover 300 is divided into two sections, specifically including a first horizontal section 410 and an oblique section 420, wherein the distance between the first horizontal section 410 and the second horizontal section 430 is the height of the lifting slider 400. Figure 3 and Figure 4 As shown, before the metal cutting jig is cutting, the first horizontal section 410 of the lifting slider 400 is in contact with the movable top cover 300. The first horizontal section 410 and the second horizontal section 430 of the lifting slider 400 respectively support the movable top cover 300 and the container 100, and have strong stability, which can prevent the movable top cover 300 from driving the cutting blade 310 to fall. When the metal cutting jig is cutting, the lifting slider 400 is moved until its first horizontal section 410 leaves the movable top cover 300. At the same time, the oblique section 420 of the lifting slider 400 contacts the movable top cover 300. Due to the unstable support of the oblique section 420 and the effect of gravity, the movable top cover 300 drives the cutting blade 310 to fall. After falling, the cutting blade 310 passes through the cutting hole 210 and enters the receiving groove 110, and evenly cuts the sample placed in the receiving groove 110, as shown in FIG. Figure 5 and Figure 6 The figure shows the positions of the container 100, the movable top cover 300 and the lifting slider 400 after the metal cutting jig is cut. When the movable top cover 300 is reset, the lifting slider 400 is moved in the opposite direction to make the movable top cover 300 rise along the oblique wave section 420 until the lower part of the movable top cover 300 is in contact with the first horizontal section 410 of the lifting slider 400. Furthermore, in order to guide and limit the movement of the lifting slider 400, in this embodiment, a guide groove 421 is provided on the lifting slider 400, and a guide shaft 320 is provided on the movable top cover 300 corresponding to the guide groove 421. The guide shaft 320 extends into the guide groove 421. Under the restriction of the guide groove 421 and the guide shaft 320, the lifting slider 400 can only move in the front-back direction. The lifting mechanism in this embodiment adopts the lifting slider 400, which can simplify the structure and reduce the manufacturing cost of the metal cutting jig.

[0038] It is easy to imagine that in other embodiments, the oblique wave section 420 can also be set on the contact surface between the lifting slider 400 and the container 100, or the oblique wave section 420 can be set on the contact surface between the lifting slider 400 and the container 100 and the contact surface between the lifting slider 400 and the movable top cover 300. Further, in other embodiments, other forms of lifting mechanisms can also be used, such as screw mechanisms.

[0039] Furthermore, the height of the cutting blade 310 is equal to the sum of the thickness of the cover 200 and the height of the receiving groove 110, so that the cutting blade 310 can completely cut the sample after falling, while avoiding the cutting blade 310 from colliding with the bottom of the receiving groove 110, thereby improving the service life of the cutting blade 310.

[0040] The metal cutting jig of the present application is mainly used for cutting lead-bismuth alloy. Since the melting point of lead-bismuth alloy is between more than 100 degrees Celsius and more than 200 degrees Celsius (the composition and composition ratio of the alloy will affect its melting point), the metal cutting jig of the present application is preferably made of a material with a melting point higher than 300°C. In the process of heating and melting the lead-bismuth alloy, damage to the metal cutting jig can be avoided. The container 100 is preferably made of stainless steel or ceramic, and the cutting blade 310 is preferably made of stainless steel or ceramic.

[0041] One of the use processes of the metal cutting jig of the present application is as follows: a lead-bismuth alloy sample to be cut is placed in the containing tank 110, and the cover 200 is added, and then a movable top cover 300 and a lifting mechanism are installed. During assembly, the cutting blade 310 corresponds to the cutting hole 210 one by one, and the initial state of the movable top cover 300 is a high position state away from the container 100; the lead-bismuth alloy sample in the metal cutting jig is heated to increase its temperature until the lead-bismuth alloy sample enters a molten state, wherein the heating operation can be selected to place the metal cutting jig in a heating furnace, and the metal cutting jig is heated by the heating furnace. The whole sample is heated, and the molten sample is easier to cut and can better ensure the uniformity of cutting; after the lead-bismuth alloy sample enters the molten state, take out the metal cutting jig and shake the liquid lead-bismuth alloy, operate the lifting mechanism to move, so that the movable top cover 300 drives the cutting blade 310 to fall, and the cutting blade 310 passes through the cutting hole 210 and enters the containing groove 110 after falling, and divides the liquid lead-bismuth alloy in the containing groove 110 into equal parts; place the metal cutting jig in cold water for quenching to achieve rapid cooling of the lead-bismuth alloy; disassemble the metal cutting jig and take out the evenly divided sample. After the metal cutting jig is used, the residual metal in the jig can be soaked in nitric acid for cleaning, so that the jig can be reused.

[0042] Furthermore, a heating element may be provided in the container 100, and the heating element is used to heat the sample in the containing tank 110, so that the sample enters a molten state, without having to place the entire metal cutting jig into a heating furnace and rely on the heating furnace. In order to improve the utilization rate of the heat generated by the heating element and prevent the container 100 from overheating and causing burns to personnel, a heat insulation layer may be provided on the outer surface of the container 100.

[0043] The metal cutting jig of the present application can be used to split metal when it is molten, and can evenly cut metal samples of different shapes and sizes, thereby avoiding problems such as sample loss, debris generation, and large differences in uniformity when cutting the metal after it is formed. In addition, the metal cutting jig of the present application has a simple structure, is easy to disassemble, and is easy to clean and reuse.

[0044] The above embodiments only express the specific implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent of the present application. It should be pointed out that, for ordinary technicians in this field, without departing from the concept of the present application, the above-mentioned technical features can be freely combined, and several deformations and improvements can be made, which all belong to the protection scope of the present application. Therefore, all equivalent changes and modifications made to the scope of the claims of the present application should belong to the scope covered by the claims of the present application.

Claims

1. A metal cutting jig, characterized in that: include: A container (100), wherein a receiving groove (110) with an upper opening is provided in the container (100), A cover (200), the cover (200) being arranged above the receiving groove (110), the cover (200) being provided with a plurality of cutting holes (210), the cutting holes (210) penetrating the cover (200) in a vertical direction, A movable top cover (300), wherein the movable top cover (300) is arranged on the container (100), the movable top cover (300) is located above the sealing cover (200), and a plurality of cutting blades (310) are arranged at the lower part of the movable top cover (300). A lifting mechanism, the lifting mechanism being arranged between the container (100) and the movable top cover (300), and the lifting mechanism driving the movable top cover (300) to perform lifting motion; The cutting blades (310) are arranged at equal intervals, and the cutting blades (310) are arranged in one-to-one correspondence with the cutting holes (210). When the movable top cover (300) is lowered, the cutting blades (310) pass through the cutting holes (210) and enter the containing groove (110) to evenly cut the sample placed in the containing groove (110).

2. The metal cutting jig according to claim 1, characterized in that: A heating element is arranged in the container (100), and the heating element is used to heat the sample in the containing tank (110) to make it enter a molten state.

3. The metal cutting jig according to claim 2, characterized in that: The outer surface of the container (100) is provided with a thermal insulation layer.

4. The metal cutting jig according to any one of claims 1 to 3, characterized in that: The metal cutting jig is made of a material with a melting point higher than 300°C.

5. The metal cutting jig according to claim 4, characterized in that: The container (100) is made of stainless steel or ceramic.

6. The metal cutting jig according to claim 4, characterized in that: The cutting blade (310) is made of stainless steel or ceramic.

7. The metal cutting jig according to claim 1, characterized in that: The height of the cutting blade (310) is equal to the sum of the thickness of the cover (200) and the height of the accommodating groove (110).

8. The metal cutting jig according to claim 1, characterized in that: The lifting mechanism comprises a lifting slider (400) that can slide horizontally, the lifting slider (400) being arranged between the container (100) and the movable top cover (300), at least one of the contact surfaces between the lifting slider (400) and the container (100) and the contact surfaces between the lifting slider (400) and the movable top cover (300) being provided with an oblique section (420), and when the lifting slider (400) slides horizontally, the movable top cover (300) is driven by the oblique section (420) to move upward or downward.

9. The metal cutting jig according to claim 8, characterized in that: The contact surface between the lifting slider (400) and the movable top cover (300) is provided with a first horizontal section (410), and the contact surface between the lifting slider (400) and the container (100) is provided with a second horizontal section (430), and the distance between the first horizontal section (410) and the second horizontal section (430) is the height of the lifting slider (400).

10. The metal cutting jig according to claim 8, characterized in that: The lifting slide block (400) is provided with a guide groove (421), and the movable top cover (300) is provided with a guide shaft (320) corresponding to the guide groove (421).

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