Grinding and polishing clamp for metal filament metallographic detection

Abstract

The utility model relates to the technical field of metallographic detection, in particular to a grinding and polishing clamp for metallographic detection of metal filaments, which comprises a first semicircular clamp and a second semicircular clamp, a first bolt is inserted into one end of the first semicircular clamp, and a rod part of the first bolt penetrates through the first semicircular clamp and is in threaded connection with the second semicircular clamp; the two grinding and polishing mechanisms are installed at the bottom of the first semicircular clamp and the bottom of the second semicircular clamp correspondingly. The detachable grinding and polishing mechanism is adopted, so that a clamping structure and a grinding and polishing structure can be modularly designed, a semicircular grinding and polishing block can be easily and rapidly replaced when being abraded, a user does not need to replace the whole grinding and polishing clamp, and then the effect of reducing the grinding and polishing cost of the metal filaments is achieved; the problems that an existing grinding and polishing clamp for metal filament metallographic detection is prone to abrasion and short in service life are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of metallographic detection technology, especially metal filament metallographic detection grinding and polishing fixture. BACKGROUND

[0002] Metallographic detection, also known as metal microstructure analysis, is an important material analysis method. Currently, metal filament cross section is mostly processed by grinding and polishing when metallographic detection is carried out. Compared with the way of directly cutting, directly cutting metal filament will leave obvious cutting marks such as scratches and burrs on the end, which will interfere with the observation and analysis of metallographic structure. Through grinding and polishing, these cutting marks and defects can be effectively removed, making the end of the sample smooth and smooth, thereby more accurately reflecting the microstructure of the material.

[0003] Currently, metal filaments are mostly clamped by two half-round clamps, and then placed on the corresponding grit paper for grinding and polishing. In this process, the end of the male and female clamps facing the sandpaper inevitably rubs against the sandpaper and the debris generated during grinding and polishing, which will wear down the end of the male and female clamps facing the sandpaper, easily causing unevenness on the end of the male and female clamps facing the sandpaper, which requires the user to replace the male and female clamps as a whole, significantly increasing the cost of polishing the metal filament.

[0004] Therefore, a metal filament metallographic detection grinding and polishing fixture is proposed to solve the above problems. CONTENT OF THE UTILITY MODEL

[0005] The purpose of the utility model is to provide a metal filament metallographic detection grinding and polishing fixture to solve the problem of easy wear and short service life of the metal filament metallographic detection grinding and polishing fixture.

[0006] The utility model realizes the above-mentioned purpose through the following technical scheme, a metal filament metallographic detection grinding and polishing fixture, comprising: a first half-round clamp, a second half-round clamp and two grinding and polishing mechanisms, one end of the first half-round clamp is inserted with a first bolt, the rod part of the first bolt penetrates the first half-round clamp and is threadedly connected with the second half-round clamp; two grinding and polishing mechanisms are respectively installed at the bottom of the first half-round clamp and the second half-round clamp, the top of the two grinding and polishing mechanisms penetrates to the outside of the first half-round clamp and the second half-round clamp respectively;

[0007] Preferably, the grinding and polishing mechanism connected with the first half-round clamp comprises a second bolt inserted into the upper surface of the first half-round clamp, the rod part of the second bolt penetrates out of the first half-round clamp, and the surface of the second bolt is threadedly connected with a half-round grinding and polishing block clamped with the first half-round clamp.

[0008] Preferably, the top of the semicircular grinding and polishing block is provided with a vertical positioning groove, and the bottom of the first semicircular clamp and the second semicircular clamp is convex and provided with a convex part matched with the vertical positioning groove and clamped.

[0009] Preferably, the horizontal cross-sectional shape of the convex part and the vertical positioning groove is matched semicircle.

[0010] Preferably, the outside of the convex part is fixedly connected with an elastic sealing element in contact with the semicircular grinding and polishing block, and the horizontal cross-sectional shape of the elastic sealing element is semicircular frame.

[0011] Preferably, the horizontal cross-sectional size of the convex part and the elastic sealing element together is the same as the horizontal cross-sectional size of the semicircular grinding and polishing block.

[0012] Preferably, the bottom of the semicircular grinding and polishing block directly below the first semicircular clamp is provided with a positioning line hole, and the upward opening of the positioning line hole is provided at one end of the semicircular grinding and polishing block facing the second semicircular clamp.

[0013] Preferably, one end of the semicircular grinding and polishing block is provided with a horizontal positioning groove, and one end of the semicircular grinding and polishing block is fixedly connected with a horizontal guide block, the horizontal positioning groove and the horizontal guide block are symmetrically distributed on both sides of the axis of the semicircular grinding and polishing block, and one end of the horizontal guide block is inserted into the adjacent horizontal positioning groove.

[0014] The utility model discloses the beneficial effect is:

[0015] 1, adopt the detachable design's grinding and polishing mechanism, this can clamping structure and grinding and polishing structure modular design, when the semicircular grinding and polishing block appears abrasion, can easily carry out quick replacement, need not user to replace whole grinding and polishing clamp, and then reach the effect of reducing the cost of metal filament grinding and polishing, to solve the existing metal filament metallographic detection grinding and polishing clamp easy to wear, and the service life is shorter's problem;

[0016] 2, the positioning line hole can improve the limiting effect when grinding and polishing the metal filament, further avoid the probability of displacement of the metal filament when grinding and polishing, and when the user needs to replace the positioning line hole matched with the metal filament, the user also only needs to replace the semicircular grinding and polishing block with the matched positioning line hole according to the above mode, which can further reduce the grinding and polishing cost of different specifications of metal filaments, to achieve the effect of saving cost;

[0017] 3, when the user preliminarily installs the first semicircular clamp and the second semicircular clamp, the horizontal guide block can be inserted into the corresponding horizontal positioning groove, which not only can ensure that the bottom of the two semicircular grinding and polishing blocks is in the same plane, to improve the polishing precision of the metal filament subsequently, but also can make the two semicircular grinding and polishing blocks restrict each other, further reducing the probability of loosening or deviation of the semicircular grinding and polishing block in the use process. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 for Figure 1 Schematic sectional view along the middle AA direction;

[0020] Figure 3 for Figure 1 Cross-sectional view along the middle BB direction;

[0021] Figure 4 for Figure 1 Cross-sectional view along the CC direction.

[0022] In the figure: 100, first semi-circular clamp; 200, second semi-circular clamp; 300, first bolt; 400, grinding and polishing mechanism; 410, second bolt; 420, semi-circular grinding and polishing block; 421, positioning line hole; 422, vertical positioning groove; 423, horizontal positioning groove; 430, elastic seal; 440, horizontal guide block; 500, protrusion. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] In practical implementation: such as Figures 1-4 As shown,

[0025] A metallographic polishing fixture for metal wire inspection includes: a first semicircular fixture 100, a second semicircular fixture 200, and two polishing mechanisms 400. A first bolt 300 is inserted into one end of the first semicircular fixture 100, and the shank of the first bolt 300 passes through the first semicircular fixture 100 and is threadedly connected to the second semicircular fixture 200. The two polishing mechanisms 400 are respectively installed at the bottom of the first semicircular fixture 100 and the second semicircular fixture 200, and their tops extend to the outside of the first semicircular fixture 100 and the second semicircular fixture 200, respectively. Two horizontal bolt holes are opened on the arc-shaped side of the first semicircular fixture 100, and the horizontal cross-sectional shape of the horizontal bolt holes is T-shaped. Two horizontal threaded grooves are opened on the straight side of the second semicircular fixture 200, each communicating with one of the two horizontal bolt holes. The first bolt 300 is inserted into the interior of the horizontal bolt hole, and the shank of the first bolt 300 passes through the horizontal bolt hole and is threadedly connected to the horizontal threaded groove.

[0026] The number of the first bolts 300 is two, and the two first bolts 300 are symmetrically distributed on both sides of the axis of the first semicircular clamp 100. The design of the two first bolts 300 can firmly lock the first semicircular clamp 100 and the second semicircular clamp 200 together, so as to reduce the probability of displacement of the clamped metal wire during polishing and grinding, and thus improve the polishing and grinding effect on the metal wire.

[0027] When the user needs to polish and grind the metal wire, the user first unscrews the two first bolts 300 from the horizontal threaded slots respectively, separates the first semicircular clamp 100 and the second semicircular clamp 200, then inserts the end of the metal wire through the positioning line hole 421, then combines the first semicircular clamp 100 and the second semicircular clamp 200 to clamp the metal wire, then inserts the first bolt 300 through the horizontal bolt hole and threadedly connects with the horizontal threaded slot, and firmly locks the metal wire inside the first semicircular clamp 100 and the second semicircular clamp 200. At this time, the worker can place the end of the metal wire inserted through the positioning line hole 421 on the sandpaper and reciprocally polish and grind.

[0028] As shown in Figure 2 , Figure 3 and Figure 4 , the polishing and grinding mechanism 400 connected with the first semicircular clamp 100 includes a second bolt 410 inserted on the upper surface of the first semicircular clamp 100. The rod of the second bolt 410 is inserted through the first semicircular clamp 100. The surface of the second bolt 410 is threadedly connected with a semicircular polishing block 420 clamped with the first semicircular clamp 100.

[0029] The top of the semicircular polishing block 420 is provided with a vertical positioning groove 422. The bottom of the first semicircular clamp 100 and the second semicircular clamp 200 is convex and is provided with a convex portion 500 matched with and clamped with the vertical positioning groove 422. The horizontal cross-sectional shape of the convex portion 500 and the vertical positioning groove 422 is a matching semicircle, which can reduce the probability of shaking or deviation of the semicircular polishing block 420 during operation, so as to improve the stability of polishing and grinding of the metal wire.

[0030] The outer side of the convex portion 500 is fixedly connected with an elastic sealing member 430 in contact with the semicircular polishing block 420. The horizontal cross-sectional shape of the elastic sealing member 430 is a semicircular frame. The horizontal cross-sectional dimension of the convex portion 500 and the elastic sealing member 430 together is the same as the horizontal cross-sectional dimension of the semicircular polishing block 420. This can block the gap between the convex portion 500 and the semicircular polishing block 420 without interfering with the metal wire, so as to prevent polishing debris from entering the gap, so that the semicircular polishing block 420 can be smoothly installed on the convex portion 500, so as to improve the subsequent polishing precision.

[0031] The bottom of the semicircular grinding block 420 arranged directly below the first semicircular clamp 100 is provided with a positioning line hole 421, and the upward opening of the positioning line hole 421 is arranged at one end of the semicircular grinding block 420 facing the second semicircular clamp 200. The positioning line hole 421 can improve the limiting effect during grinding of the metal wire, and further avoid the probability of displacement of the metal wire during grinding.

[0032] One end of the semicircular grinding block 420 is provided with a horizontal positioning groove 423, and the semicircular grinding block 420 is fixedly connected with a horizontal guide block 440. The horizontal positioning groove 423 and the horizontal guide block 440 are symmetrically distributed on both sides of the axis of the semicircular grinding block 420. One end of the horizontal guide block 440 is inserted into the adjacent horizontal positioning groove 423. When the user aligns and locks the first semicircular clamp 100 and the second semicircular clamp 200 together, the horizontal guide block 440 can be inserted into the corresponding horizontal positioning groove 423. This not only ensures that the bottoms of the two semicircular grinding blocks 420 are in the same plane to improve the subsequent polishing precision of the metal wire, but also enables the two semicircular grinding blocks 420 to be mutually restrained, further reducing the probability of loosening or deviation of the semicircular grinding block 420 during use.

[0033] When the worn semicircular grinding block 420 needs to be replaced, the user only needs to unscrew the second bolt 410 from the vertical threaded groove. At this time, the semicircular grinding block 420 loses the block, and the semicircular grinding block 420 can be easily removed. Then the user can align and clamp the vertical positioning groove 422 on the new semicircular grinding block 420 with the protruding part 500, and finally screw the second bolt 410 into the vertical threaded groove and tightly connect it with the vertical threaded groove. The semicircular grinding block 420 is stably locked at the bottom of the first semicircular clamp 100 or the second semicircular clamp 200 connected thereto. This does not require the user to replace the entire grinding clamp, and when the user needs to replace the positioning line hole 421 matched with the metal wire, the user only needs to replace the semicircular grinding block 420 with the matched positioning line hole 421 in the above-mentioned manner. This can effectively reduce the grinding cost of different specifications of metal wires to achieve the effect of saving cost.

[0034] In addition, it should be understood that although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution. The description of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole. The technical solutions in each embodiment can be appropriately combined to form other embodiments that those skilled in the art can understand.

Claims

1. A grinding and polishing fixture for metallographic testing of fine metal wires, characterized in that, include: The first semicircular clamp (100) and the second semicircular clamp (200) are provided. One end of the first semicircular clamp (100) is connected to a first bolt (300). The shank of the first bolt (300) passes through the first semicircular clamp (100) and is threadedly connected to the second semicircular clamp (200). Two grinding and polishing mechanisms (400) are respectively installed at the bottom of the first semicircular clamp (100) and the second semicircular clamp (200), and the tops of the two grinding and polishing mechanisms (400) extend to the outside of the first semicircular clamp (100) and the second semicircular clamp (200). The polishing mechanism (400) connected to the first semi-circular clamp (100) includes a second bolt (410) inserted into the upper surface of the first semi-circular clamp (100), the shank of the second bolt (410) extending through the first semi-circular clamp (100), and a semi-circular polishing block (420) threadedly connected to the surface of the second bolt (410) and engaging with the first semi-circular clamp (100).

2. The metallographic inspection and polishing fixture for metal wires according to claim 1, characterized in that: The top of the semi-circular polishing block (420) is provided with a vertical positioning groove (422), and the bottoms of the first semi-circular clamp (100) and the second semi-circular clamp (200) are both convex and have protrusions (500) that match and engage with the vertical positioning groove (422).

3. The metallographic inspection and polishing fixture for metal wires according to claim 2, characterized in that: The horizontal cross-sectional shapes of the protrusion (500) and the vertical positioning groove (422) are both matching semi-circular shapes.

4. The metallographic polishing fixture for metal wire inspection according to claim 3, characterized in that: An elastic seal (430) that contacts the semi-circular polishing block (420) is fixedly connected to the outer side of the protrusion (500). The horizontal cross-sectional shape of the elastic seal (430) is a semi-circular frame.

5. The metallographic inspection and polishing fixture for metal wires according to claim 4, characterized in that: The horizontal cross-sectional dimensions formed by the protrusion (500) and the elastic seal (430) are the same as those of the semi-circular polishing block (420).

6. The metallographic inspection and polishing fixture for metal wires according to claim 1, characterized in that: The bottom of the semi-circular polishing block (420), which is located directly below the first semi-circular fixture (100), is provided with a positioning line hole (421). The upward opening of the positioning line hole (421) is located at the end of the semi-circular polishing block (420) facing the second semi-circular fixture (200).

7. The metallographic grinding and polishing fixture for metal wire inspection according to claim 1, characterized in that: A horizontal positioning groove (423) is provided at one end of the semi-circular polishing block (420), and a horizontal guide block (440) is fixedly connected to one end of the semi-circular polishing block (420). The horizontal positioning groove (423) and the horizontal guide block (440) are symmetrically distributed on both sides of the axis of the semi-circular polishing block (420), and one end of the horizontal guide block (440) is inserted into the adjacent horizontal positioning groove (423).

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