A fixture for sample processing on a surface grinder

Abstract

This utility model relates to a fixture for sample processing on a surface grinder, belonging to the field of sample fixtures for grinding. It includes a base and a front baffle, a rear baffle, a left baffle, a right baffle, and a pressure block fixed to the base. A first bolt passes through the pressure block and is screwed into a screw hole in the base. A movable block is provided on the rear side of the pressure block, wedge-shaped and tightly pressed against the pressure block. The front side of the pressure block is close to the front baffle. The first bolt, by screwing downwards, presses down on the pressure block, thereby pushing the movable block backwards to clamp the sample from the front. A second bolt is screwed onto the left or right baffle, clamping the sample through a protective washer. The base of the fixture is magnetically fixed to a common magnetic worktable on a surface grinder, allowing it to fix samples to be ground, enabling samples that cannot be magnetically attached to be fixed on the surface grinder for processing.

Description

Technical Field

[0001] This utility model relates to the processing of polished test samples. Background Technology

[0002] Surface grinding is a common processing method for sample surface treatment. The sample is adsorbed on the magnetic base of the surface grinder, and the surface roughness is achieved by grinding with a grinding wheel to meet the requirements of use or experiment. It is characterized by simple operation and high processing efficiency.

[0003] The applications of surface grinding are becoming increasingly widespread, and the requirements for quality and precision are also becoming higher. In actual production, we encounter samples that are non-magnetic or have weak magnetism and small adsorption surfaces, which the magnetic base of the surface grinder cannot adsorb and fix. We also encounter samples whose perpendicularity does not meet the standards, requiring perpendicularity correction during the surface grinding process. In other words, without additional measures, the surface grinder cannot complete the processing of such samples. Summary of the Invention

[0004] The purpose of this utility model is to provide a fixture for sample processing on a surface grinder. The fixture is adsorbed and fixed on the magnetic base of the surface grinder and has the functions of clamping the sample and adjusting the perpendicularity of the sample.

[0005] The technical solution adopted by this utility model to solve the above problems is as follows: a fixture for sample processing on a surface grinder, the fixture includes a base and a front baffle, a rear baffle, a left baffle, and a right baffle fixed on the base, and a pressure block that is in close contact with the front baffle. The pressure block has two through holes that pass through vertically, and the base has two screw holes corresponding to the through holes of the pressure block. A first bolt passes through the through holes of the pressure block vertically and is screwed into the screw holes of the base. A movable block is provided on the rear side of the pressure block, and the movable block is wedge-shaped against the pressure block. The front side of the pressure block is close to the front baffle. The first bolt presses down on the pressure block and pushes the movable block backward to clamp the sample from the front. One or more second bolts are screwed on the left or right baffle. A protective pad is provided on the left or right side of the sample. The end of the second bolt acts on the protective pad. The protective pad is located between the second bolt and the sample. The second bolt clamps the sample from the left or right side through the protective pad.

[0006] As one of the preferred embodiments in this case, the upper surface of the base is a plane, and the inner surfaces of the rear baffle and the right baffle are perpendicular to the upper surface of the base, respectively, and the inner surfaces of the rear baffle and the right baffle are perpendicular to each other.

[0007] As one of the preferred methods in this case, the protective pad is a copper part, and the height of the protective pad does not exceed the height of the sample after polishing.

[0008] As one of the preferred methods in this case, the height of the rear baffle, left baffle, and right baffle does not exceed the height of the sample after grinding; the rear baffle is spaced apart from the left baffle and right baffle and they do not intersect each other.

[0009] As one of the preferred methods in this case, the thickness of the base is 30mm or more.

[0010] As one of the preferred methods in this case, there is a washer under the first bolt, the inner hole of the washer is larger than the outer diameter of the bolt, and the outer diameter of the washer is larger than the through hole diameter of the pressure block.

[0011] Compared with existing technologies, the advantages of this invention are as follows: The fixture of this invention is a single unit; it can be used simply by adsorbing and fixing it onto the magnetic suction work platform commonly used in surface grinders, and the sample is fixed by tightening bolts. A vertical baffle controls the perpendicularity of each surface of the sample after processing. This improves testing accuracy and is economical and practical. Attached Figure Description

[0012] Figure 1 This is a three-dimensional schematic diagram of the clamp holding the sample in an embodiment of the present invention;

[0013] Figure 2 This is a front view schematic diagram of the fixture clamping the sample in an embodiment of this utility model;

[0014] Figure 3 This is a left-side view of the fixture clamping the sample in an embodiment of this utility model;

[0015] Figure 4 This is a top view of the fixture clamping the sample in an embodiment of the present invention;

[0016] 1-Base, 2-Left baffle, 3-Protective pad, 4-Rear baffle, 5-Right baffle, 6-First bolt, 7-Front baffle, 8-Pressure block, 9-Moving block, 10-Second bolt, 11-Sample, 12-Gasket. Detailed Implementation

[0017] To make the objectives, features, and advantages of this utility model clearer and easier to understand, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only for explaining the present utility model and are not intended to limit the present utility model.

[0018] like Figure 1As shown, this embodiment of the invention provides a fixture for processing samples on a surface grinder, including a base 1, a left baffle 2, a protective pad 3, a rear baffle 4, a right baffle 5, a first bolt 6, a front baffle 7, a pressure block 8, a movable block 9, a second bolt 10, and a washer 12. The fixture base 1 is magnetically fixed to the worktable of the surface grinder. The sample 11 is placed in the fixture, aligning it with the inner surfaces of the rear baffle 4 and the right baffle 5. The bolt 6 is tightened, and the pressure block 8 pushes the movable block 9 to clamp the sample 11. The bolt 10 is then tightened to clamp the other two sides of the sample 11. This achieves the purpose of fixing the sample 11.

[0019] like Figure 1 , Figure 3 As shown, the movable block 9 and the pressure block 8 are respectively provided with bevels. In cooperation with the front baffle 7, by tightening the first bolt 6 on the pressure block 8, the pressure block 8 pushes the movable block 9 to cooperate with the rear baffle 4, which can clamp the two sides of the sample 11.

[0020] like Figure 1 , Figure 2 As shown, the protective pad 3 is placed between the second bolt 10 and the sample 11 to prevent damage to the surface of the sample 11 due to the tightening of the bolt 10.

[0021] like Figure 1 , Figure 2 As shown, the heights of the rear baffle 4, left baffle 2, and right baffle 5, as well as the height of the protective pad 3 clamped in the fixture, do not exceed the forming height of the sample 11 clamped in the fixture. This is to prevent the sample 11 from being ground by the grinding wheel during grinding.

[0022] like Figure 4 As shown, the rear baffle 4 has a gap with the left baffle 2 and the right baffle 5, and they do not intersect. This is to facilitate observation of the fit between the sample 11 and the rear baffle 4 and the right baffle 5 when the sample 11 is clamped.

[0023] like Figure 3 As shown, there is a washer 12 under the first bolt 6. The thickness of the washer 12 can be adjusted according to the on-site usage requirements, so that when the sample 11 is clamped on the fixture, the first bolt 6 can be tightened onto the base 1, and the first bolt 6 does not extend beyond the lower surface of the base 1. This prevents interference with the adsorption and fixation of the lower surface of the fixture and the worktable of the surface grinder.

[0024] Simply attach the fixture's base to the magnetically attached worktable of the surface grinder, and it's ready to use without any other auxiliary devices. Tighten the screws to secure the sample to be ground, allowing even samples that cannot be magnetically attached to be fixed to the surface grinder for processing. By ensuring the sample is pressed against the back and right stops, the perpendicularity of the ground surface is controlled, improving testing accuracy and offering economic efficiency.

[0025] In addition to the above embodiments, this utility model also includes other implementation methods. All technical solutions formed by equivalent transformation or equivalent substitution should fall within the protection scope of the claims of this utility model.

Claims

1. A fixture for use in sample processing on a surface grinder, characterized by, The clamp comprises a base (1), a front baffle (7), a rear baffle (4), a left baffle (2), a right baffle (5) and a pressing block (8) fixed on the base (1), the pressing block (8) is provided with two through holes, the base (1) is provided with two screw holes corresponding to the through holes of the pressing block (8), a first bolt (6) penetrates the through holes of the pressing block (8) and is screwed in the screw holes of the base (1); a movable block (9) is arranged on the rear side of the pressing block (8), the movable block (9) is tightly pressed against the wedge surface of the pressing block (8), the front side of the pressing block (8) is tightly pressed against the front baffle (7), the first bolt (6) pushes the movable block (9) to clamp the sample (11) from the front side by screwing the pressing block (8); one or more second bolts (10) are screwed on the left baffle (2) or the right baffle (5), a protective pad (3) is arranged on the left side or the right side of the sample (11), the end of the second bolt (10) acts on the protective pad (3), the protective pad (3) is located between the second bolt (10) and the sample (11), and the second bolt (10) clamps the sample (11) from the left side or the right side through the protective pad (3).

2. A fixture for use in sample processing on a flat surface grinder as defined in claim 1, wherein: The upper surface of the base (1) is a plane, the inner surfaces of the rear baffle (4) and the right baffle (5) are perpendicular to the upper surface of the base (1), and the inner surfaces of the rear baffle (4) and the right baffle (5) are perpendicular to each other.

3. The fixture for sample processing on a flat surface grinder according to claim 1, wherein: The protective pad (3) is a copper part, and the height of the protective pad (3) is not higher than the height of the sample (11) after polishing.

4. The fixture for use in sample processing on a flat surface grinder as defined in claim 1, wherein: The heights of the rear baffle (4), the left baffle (2) and the right baffle (5) are not higher than the height of the sample (11) after polishing, and the rear baffle (4) and the left baffle (2) and the right baffle (5) are spaced apart and do not intersect each other.

5. The fixture for use in sample processing on a flat surface grinder as defined in claim 1, wherein: The thickness of the base (1) is greater than or equal to 30 mm.

6. The fixture for use in sample processing on a flat surface grinder as defined in claim 1, wherein: The first bolt (6) is provided with a gasket (12) on the lower surface, the inner hole of the gasket (12) is greater than the outer diameter of the first bolt (6), and the outer diameter of the gasket (12) is greater than the diameter of the through hole of the pressing block (8).

Images