Grinding sample clamping tool

Abstract

The utility model relates to the technical field of clamps, and provides a sample grinding clamping tool which comprises a barrel, one end of the barrel is coaxially connected with an ejector rod in a threaded mode, the other end of the barrel is provided with an opening used for containing a sample, and a plurality of screws used for clamping the sample in a matched mode are evenly arranged in the circumferential direction of the barrel. The multiple screws are in threaded connection with the side wall of the barrel in the radial direction of the barrel, the barrel is axially and adjustably connected with an adjusting ring at the open end, the multiple screws evenly arranged in the circumferential direction of the barrel are matched and the ejector rods abut against each other, so that samples of different shapes and sizes are stably clamped, and by adjusting the relative position between the adjusting ring and the barrel, the sample clamping efficiency is improved. The grinding thickness needed by the sample can be adjusted, the clamping flexibility and stability are enhanced, and the grinding safety is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of jigs, and more specifically, to a grinding sample clamping tooling. Background Art

[0002] In spectral analysis and metallographic analysis, it is usually necessary to polish the surface of the sample to make its roughness meet the experimental requirements. Due to the variety of sample types and different specifications, for regular-shaped and relatively thick conventional samples, the sample preparation operation can be carried out conventionally by hand. However, for some irregular or relatively thin samples, it is difficult to operate by hand, and safety hazards are likely to occur during the sample preparation process, such as the sample flying out on the polishing machine because it cannot be firmly held, or the fingers being injured due to insufficient holding space when contacting the polishing machine. Content of the Utility Model

[0003] The purpose of the utility model is to provide a grinding sample clamping tooling to solve the above technical problems, enhance the flexibility and stability of clamping, and improve the safety of grinding.

[0004] The utility model is realized through the following technical solutions: a grinding sample clamping tooling includes a cylinder body. One end of the cylinder body is coaxially threadedly connected with a top rod, and the other end of the cylinder body is provided with an opening for placing the sample. A plurality of screw rods for cooperatively clamping the sample are evenly arranged in the circumferential direction of the cylinder body. All the screw rods are threadedly connected with the side wall of the cylinder body along the radial direction of the cylinder body. An adjusting ring is axially adjustably connected to the cylinder body at the end of the opening.

[0005] Further, an adjusting groove is provided on the side wall of the cylinder body, and a plurality of adjusting holes are axially provided in the adjusting groove. The adjusting ring includes an adjusting block slidably matched with the adjusting groove, and an adjusting bolt fastened to the adjusting block and matched with the adjusting hole.

[0006] Further, multiple groups of screw rods are arranged at intervals along the axial direction of the cylinder body.

[0007] Further, one end of the top rod is connected with a leveling block for contacting the sample, and a rotating head is provided at the other end of the top rod.

[0008] Further, the screw rods are arranged near the end of the opening.

[0009] Further, the inner ring of the adjusting ring is smoothly butted against the inner wall of the cylinder body, and the outer ring of the adjusting ring is smoothly butted against the outer wall of the cylinder body.

[0010] Further, scale lines are axially arranged on the top rod.

[0011] The utility model has at least the following advantages and beneficial effects: Through the cooperation of several screws uniformly arranged in the circumferential direction of the cylinder body and the abutment of the ejector rod, the stable clamping of specimens with different shapes and sizes is realized, and by adjusting the relative position between the adjusting ring and the cylinder body, the required grinding thickness of the specimen can be adjusted, enhancing the flexibility and stability of clamping and improving the safety of grinding. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present utility model, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative efforts.

[0013] Figure 1 FIG. is a schematic structural diagram of a sample grinding clamping tool provided by the present utility model;

[0014] Figure 2 FIG. is a sectional view of a sample grinding clamping tool provided by the present utility model;

[0015] Figure 3 FIG. is another sectional view of a sample grinding clamping tool provided by the present utility model;

[0016] Reference numerals: 1 - cylinder body, 10 - opening, 11 - adjustment groove, 110 - adjustment hole, 2 - ejector rod, 21 - leveling block, 22 - rotating head, 3 - screw, 4 - adjusting ring, 41 - adjusting block, 42 - adjusting bolt. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0017] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. Usually, the components of the embodiments of the present utility model described and illustrated in the drawings here can be arranged and designed in various different configurations.

[0018] Therefore, the following detailed description of the embodiments of the present utility model provided in the drawings is not intended to limit the scope of the claimed present utility model, but merely represents the selected embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts fall within the scope of protection of the present utility model.

[0019] Embodiment

[0020] As Figures 1-3As shown, in this embodiment, a sample grinding clamping tooling is mainly disclosed, which has a simple and reliable structure. It includes a cylinder 1. One end of the cylinder 1 is coaxially threadedly connected with a top rod 2. The other end of the cylinder 1 is provided with an opening 10 for placing a sample. A plurality of screw rods 3 for cooperatively clamping the sample are evenly arranged in the circumferential direction of the cylinder 1. All the plurality of screw rods 3 are threadedly connected to the side wall of the cylinder 1 along the radial direction of the cylinder 1. An adjusting ring 4 is axially adjustably connected to the cylinder 1 at the end of the opening 10. It should be noted that the cylinder 1 is a cylindrical structure, one end of which is closed and the top rod 2 passes through it, used to abut and limit the position of the sample along the axial direction of the cylinder 1. The other end has an opening 10, and its interior is hollow for accommodating the sample. The inner cavity size of the cylinder 1 can be set according to the sample clamping requirements to adapt to the clamping of most samples for grinding. The side wall of the cylinder 1 can be thinned to reduce the weight of the cylinder 1. By screwing the screw rods 3 arranged circumferentially on the cylinder 1 to cooperatively clamp the sample, stable clamping of samples with different shapes and sizes can be achieved. By adjusting the relative position between the adjusting ring 4 and the cylinder 1, the required grinding thickness of the sample can be adjusted.

[0021] Furthermore, in specific implementation, an adjusting groove 11 is provided on the side wall of the above-mentioned cylinder 1 provided in the embodiment of the present utility model. A plurality of adjusting holes 110 are axially provided in the adjusting groove 11. The adjusting ring 4 includes an adjusting block 41 that slidably cooperates with the adjusting groove 11, and an adjusting bolt 42 that is fastened to cooperate with the adjusting holes 110 is provided on the adjusting block 41. Specifically, an adjusting block 41 is welded on the adjusting ring 4 along the axial direction of the cylinder 1. A bolt hole is provided on the adjusting block 41. By sliding the adjusting block 41 in the adjusting groove 11, the bolt hole is aligned with the adjusting holes 110 at different height positions, and the adjusting bolt 42 is used for fastening, so as to realize the axially adjustable connection between the adjusting ring 4 and the cylinder 1.

[0022] Furthermore, in specific implementation, multiple groups of the above-mentioned screw rods 3 are arranged at intervals along the axial direction of the cylinder 1 in the embodiment of the present utility model. It should be noted that when clamping a relatively thin sample, only the screw rods 3 in a group close to the circumferential direction of the opening 10 need to be screwed. When clamping a relatively thick sample, multiple groups of screw rods 3 can be used in cooperation for clamping, which improves the flexibility and stability of clamping.

[0023] Furthermore, in specific implementation, a leveling block 21 for contacting the sample is connected to one end of the above-mentioned top rod 2 in the embodiment of the present utility model, and a rotating head 22 is provided at the other end of the top rod 2. Specifically, the leveling block 21 is threadedly connected to the top rod 2, which can increase the contact area with the test and achieve stable abutment. The rotating head 22 can be a prism that is convenient for applying force to rotate or a cylinder with anti-slip lines.

[0024] Furthermore, in specific implementation, the above-mentioned screw rods 3 are arranged at one end close to the opening 10 in the embodiment of the present utility model. It should be noted that the screw rods 3 should be as close as possible to the end face of the cylinder 1 so that relatively thin samples can be clamped.

[0025] Further, in specific implementation, the inner ring of the adjusting ring 4 provided in the embodiment of the present invention is smoothly butted against the inner wall of the cylinder body 1, and the outer ring of the adjusting ring 4 is smoothly butted against the outer wall of the cylinder body 1, effectively avoiding abrasion and collision of the adjusting ring 4 and improving the durability of the structure.

[0026] Further, in specific implementation, scale lines are axially arranged on the above-mentioned ejector rod 2 provided in the embodiment of the present invention. Specifically, when the abutting end of the ejector rod 2 is flush with the opening 10 end of the cylinder body 1, the closing end face of the cylinder body 1 is aligned with the initial position of the scale line. Before the sample is polished, the initial thickness value is measured. After clamping the sample, the thickness of the sample to be polished is the difference between the initial thickness value of the sample and the scale value when the ejector rod 2 is screwed and abuts against the sample, which is convenient for reflecting the sample and can realize the control of the polishing thickness of the sample to a certain extent, improving the convenience of operation.

[0027] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A sample grinding clamping tooling, comprising a cylinder body (1), one end of the cylinder body (1) is coaxially threadedly connected with a push rod (2), and an opening (10) for placing a sample is formed at the other end of the cylinder body (1), characterized in that, A plurality of screws (3) for cooperatively clamping the specimen are uniformly arranged in the circumferential direction of the cylinder body (1). The plurality of screws (3) are all threadedly connected to the side wall of the cylinder body (1) along the radial direction of the cylinder body (1). An adjusting ring (4) is axially adjustably connected to the end of the cylinder body (1) at the opening (10).

2. The sample grinding clamping tooling according to claim 1, characterized in that, An adjusting groove (11) is formed in the side wall of the cylinder body (1). A plurality of adjusting holes (110) are axially formed in the adjusting groove (11) along the cylinder body (1). The adjusting ring (4) includes an adjusting block (41) that is slidably matched with the adjusting groove (11). An adjusting bolt (42) that is matched with the adjusting hole (110) is fastened to the adjusting block (41).

3. The grinding sample clamping tooling according to claim 1, characterized in that, The screws (3) are arranged in multiple groups at intervals along the axial direction of the cylinder body (1).

4. The sample grinding clamping tooling according to claim 1, characterized in that, One end of the ejector rod (2) is connected to a leveling block (21) for contacting the specimen, and a rotating head (22) is provided at the other end of the ejector rod (2).

5. A sample grinding clamping tooling according to claim 1, characterized in that, The screws (3) are arranged near one end of the opening (10).

6. A sample grinding clamping tooling according to claim 1, characterized in that, The inner ring of the adjusting ring (4) is smoothly butted against the inner wall of the cylinder body (1), and the outer ring of the adjusting ring (4) is smoothly butted against the outer wall of the cylinder body (1).

7. The grinding sample clamping tooling according to claim 1, wherein Scale lines are axially arranged on the ejector rod (2).

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