Multi-sample grinding clamp

Abstract

The utility model discloses a multi-sample grinding clamp which comprises a disc seat, a disc cover, an adjusting mechanism and a pressing mechanism. The disc seat is arranged on the flat plate, and the distance between the disc seat and the flat plate is adjusted through the adjusting mechanism; the disc seat is in a disc shape, and a plurality of radial threaded holes are evenly distributed in the outer side face of the circumference of the disc seat. The number of the pressing mechanisms is matched with that of the threaded holes, and the pressing mechanisms are arranged in the corresponding threaded holes respectively; the tray cover is arranged on the upper surface of the tray seat; the disc cover is arranged to be in a disc shape, a plurality of radial sample grooves are evenly distributed in the outer side face of the circumference of the disc cover, the number of the sample grooves is matched with the number of the threaded holes, and the sample grooves are communicated with the corresponding threaded holes respectively. According to the utility model, the grinding and polishing efficiency of the sample and the qualification rate of the sample can be improved.

Description

Technical Field

[0001] The utility model relates to a sample fixture, more specifically to a multi-sample grinding fixture. Background Art

[0002] Specimens for metallography and electrochemistry require a flat, smooth surface for testing. These typically require repeated grinding and polishing, often in groups of three, and are typically small. A common method is to manually hold a small specimen and repeatedly grind and polish it on grinding and polishing paper until the required flatness and roughness are achieved.

[0003] However, this operation has two problems: first, the efficiency is low, and only one sample can be ground or polished at a time; second, it places high demands on the personnel who grind and polish the samples. When grinding and polishing, the hands are often unstable, resulting in the sample grinding and polishing surface being low on the edges and high in the middle, and the flatness of the sample does not meet the requirements. A qualified sample sometimes needs to be repeatedly ground and polished many times to meet the flatness and roughness requirements. Utility Model Content

[0004] In view of the above-mentioned defects in the prior art, the purpose of the present invention is to provide a multi-sample grinding fixture that can improve the efficiency of grinding and polishing samples and the pass rate of samples.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A multi-sample grinding fixture comprises a disc seat, a disc cover, an adjustment mechanism and a pressing mechanism;

[0007] The disc seat is arranged on the flat plate, and the distance between the disc seat and the flat plate is adjusted by the adjustment mechanism;

[0008] The disc seat is set in a disc shape, and a plurality of radial threaded holes are evenly distributed along the outer circumference of the disc seat;

[0009] The clamping mechanism is provided with multiple sets, adapted to the number of the threaded holes, and respectively arranged in the corresponding threaded holes;

[0010] The disc cover is arranged on the upper surface of the disc base;

[0011] The disc cover is set to be disc-shaped, and a plurality of radial sample grooves are evenly distributed along the outer circumferential surface of the disc cover. The number of the sample grooves matches the number of the threaded holes and the sample grooves are respectively connected with the corresponding threaded holes.

[0012] Preferably, a circular groove for mounting the disc cover is formed on the upper surface of the disc base.

[0013] Preferably, the disc cover is fastened to the upper surface of the disc base by six hexagonal screws.

[0014] Preferably, the threaded holes are provided with 6;

[0015] There are 6 sample slots, of which 3 have semicircular bottoms and the other 3 have square bottoms, which are arranged in a staggered manner.

[0016] Preferably, the clamping mechanism is provided with 6 sets, each comprising a clamping screw and a clamping block;

[0017] The pressing block is connected to the head of the pressing screw;

[0018] The head of the pressing block is configured to be semicircular and square, corresponding to the bottom shape of the sample tank respectively.

[0019] Preferably, the head of the compression screw is provided with a groove;

[0020] The pressing block is provided with a T-shaped groove which is matched with the groove.

[0021] Preferably, the adjustment mechanism includes 6 auxiliary sample screws;

[0022] The auxiliary specimen screws are all equipped with locking nuts.

[0023] Preferably, the disc cover is provided with a plurality of axial water leakage holes.

[0024] The utility model provides a multi-sample grinding fixture, which is convenient for processing and sample clamping, and can use grinding and polishing paper in combination to avoid waste caused by some parts of the grinding and polishing paper not being used; the sample is pressed by a pressure block with a T-slot, so that when the pressure screw rotates, the pressure block can only move horizontally in the sample slot, and the sample will not rotate during compression; at the same time, the pressure screw is arranged at the lower part of the sample for compression, so that the compression is reliable and stable; with the help of the end face contact support of the auxiliary sample screw, the sample can also be ground and polished stably. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a planar schematic diagram of the multi-sample grinding fixture of the utility model;

[0026] Figure 2 yes Figure 1 Schematic diagram of the middle AA direction;

[0027] Figure 3 yes Figure 2 Schematic diagram of the square head of the pressure block in the middle F position, (a) is a schematic diagram of the T-slot on the pressure block, (b) is a schematic diagram of the groove on the clamping screw, and (c) is a schematic diagram of the assembly of the pressure block and the clamping screw;

[0028] Figure 4 yes Figure 2Schematic diagram of the semicircular head of the pressure block in the middle F position, (a) is a schematic diagram of the T-slot on the pressure block, (b) is a schematic diagram of the groove on the clamping screw, and (c) is a schematic diagram of the assembly of the pressure block and the clamping screw. DETAILED DESCRIPTION

[0029] In order to better understand the above technical solution of the present invention, the technical solution of the present invention is further described below with reference to the accompanying drawings and embodiments.

[0030] Combine Figure 1 and Figure 2 As shown, the multi-sample grinding fixture provided by the present invention includes a disc base 1, a disc cover 2, an adjustment mechanism 3 and a pressing mechanism 4.

[0031] A circular groove for mounting the disc cover 2 is formed on the upper surface of the disc base 1 .

[0032] The disc base 1 is mounted on the flat plate 100 , and the distance (h) between the disc base 1 and the flat plate 100 is adjusted by the adjustment mechanism 3 .

[0033] The disc seat 1 is set to be disc-shaped, and 6 radial threaded holes are evenly distributed along the outer circumference of the disc seat.

[0034] The clamping mechanism 4 is provided with 6 sets, which are adapted to the number of threaded holes and are respectively installed in the corresponding threaded holes.

[0035] The disc cover 2 is also disc-shaped, with six radial sample slots 7 evenly spaced along its outer circumference. These slots 7 match the number of threaded holes and intersect with their corresponding threaded holes. Three of the slots 7 have semicircular bottoms, while the other three have square bottoms. These slots are staggered and located on different circumferences.

[0036] The width of the sample slot 7 is adapted to the width of the sample 200 .

[0037] The disc cover 2 is fastened to the upper surface of the disc base 1 by six hexagon socket screws 8 .

[0038] The adjustment mechanism 3 includes six auxiliary sample screws 31 and six locking nuts 32 matched with the auxiliary sample screws 31 , and three auxiliary sample screws 31 and locking nuts 32 are spare.

[0039] The bottom end of the auxiliary sample screw 31 passes through the pan cover 2 and the pan base 1 in sequence to contact the flat plate 100 and is locked by the locking nut 32 .

[0040] The disc cover 2 is provided with a plurality of axial water leakage holes 9 so that cooling water can flow to the grinding and polishing paper, thereby preventing heat generation during grinding and polishing and washing away the grinding and polishing sand, thereby improving the grinding and polishing quality.

[0041] The six sets of pressing mechanisms 4 each include a pressing screw 41 and a pressing block 42 .

[0042] The pressing block 42 is connected to the head of the pressing screw 41 .

[0043] Combine Figure 3 and Figure 4 As shown, the head of the pressing block 42 is configured to be semicircular and square, respectively corresponding to the bottom shape of the sample slot 7 (semicircular and square, for clamping circular and square samples).

[0044] The head of the compression screw 41 is provided with a groove 411 , and the compression block 42 is provided with a T-shaped slot 421 adapted to the groove 411 , so that the compression block 42 is clamped at the head of the compression screw 41 .

[0045] The operation of the utility model multi-sample grinding fixture is as follows:

[0046] 1. Place the multi-sample grinding fixture of the present invention on the flat plate 100, and tighten the auxiliary sample screws 31 on the three equal corners to make the bottom plane of the disc base 1 parallel to the plane of the flat plate 100, and raise it by about 1mm to 2mm;

[0047] 2. Place the sample 200 into the sample slot 7 of the plate cover 2, ensuring that the bottom surface of the sample 200 contacts the flat surface of the plate. Tighten the screw 41 and secure the sample 200 to the multi-sample grinding fixture of the present invention via the pressure block 42. If there are multiple samples 200, secure them alternately to the multi-sample grinding fixture of the present invention as described above.

[0048] 3. If the number of specimens 200 is ≥3, after all specimens 200 are fixed, lift the auxiliary specimen screws 31 so that the end faces of all specimens 200 are on the same plane. If the number of specimens 200 is less than 3, the end faces of 1 to 2 auxiliary specimen screws 31 can be left as auxiliary specimens.

[0049] 4. Use your hands to gently place the multi-sample grinding fixture of the present invention, which is equipped with 200 samples, on the rotating disk of the grinding and polishing machine, press the multi-sample grinding fixture of the present invention, flush with water, and grind and polish the samples.

[0050] The multi-sample grinding fixture of the utility model is used to grind and polish samples, so that multiple samples can be ground and polished at the same time, which is highly efficient. At the same time, since the end faces of multiple samples are uniformly contacted for grinding and polishing at the same time, the problem of unqualified flatness caused by the lowering of sample corners will not occur, thereby improving the qualified rate of sample grinding and polishing.

[0051] Those skilled in the art should recognize that the above embodiments are merely intended to illustrate the present invention and are not intended to limit the present invention. As long as they are within the spirit of the present invention, any changes or modifications to the above embodiments will fall within the scope of the claims of the present invention.

Claims

1. A multi-sample grinding fixture, characterized by: It includes a disc seat, a disc cover, an adjustment mechanism and a pressing mechanism; The disc seat is arranged on the flat plate, and the distance between the disc seat and the flat plate is adjusted by the adjustment mechanism; The disc seat is set in a disc shape, and a plurality of radial threaded holes are evenly distributed along the outer circumference of the disc seat; The clamping mechanism is provided with multiple sets, adapted to the number of the threaded holes, and respectively arranged in the corresponding threaded holes; The disc cover is arranged on the upper surface of the disc base; The disc cover is set to be disc-shaped, and a plurality of radial sample grooves are evenly distributed along the outer circumferential surface of the disc cover. The number of the sample grooves matches the number of the threaded holes and the sample grooves are respectively connected with the corresponding threaded holes.

2. The multi-sample grinding fixture according to claim 1, characterized in that: A circular groove for mounting the disc cover is provided on the upper surface of the disc seat.

3. The multi-sample grinding fixture according to claim 2, characterized in that: The disc cover is fastened to the upper surface of the disc base by 6 hexagon socket screws.

4. The multi-sample grinding fixture according to claim 1, characterized in that: There are 6 threaded holes; There are 6 sample slots, of which 3 have semicircular bottoms and the other 3 have square bottoms, which are arranged in a staggered manner.

5. The multi-sample grinding fixture according to claim 4, characterized in that: The clamping mechanism is provided with 6 sets, each including a clamping screw and a clamping block; The pressing block is connected to the head of the pressing screw; The head of the pressing block is configured to be semicircular and square, corresponding to the bottom shape of the sample tank respectively.

6. The multi-sample grinding fixture according to claim 5, characterized in that: The head of the compression screw is provided with a groove; The pressing block is provided with a T-shaped groove which is matched with the groove.

7. The multi-sample grinding fixture according to claim 1, characterized in that: The adjustment mechanism includes 6 auxiliary specimen screws; The auxiliary specimen screws are all equipped with locking nuts.

8. The multi-sample grinding fixture according to claim 1, characterized in that: The disc cover is provided with a plurality of axial water leakage holes.

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