Auxiliary clamp for round rod metallographic specimen

Abstract

The utility model relates to the technical field of metallographic sample preparation, in particular to an auxiliary clamp for a round rod metallographic sample. The utility model provides a round bar metallographic specimen auxiliary clamp which comprises a first clamping body, a mounting groove is formed in the first clamping body, a first clamping area is arranged on the side wall of the mounting groove, a second clamping body is slidably connected into the mounting groove, a second clamping area is arranged on the side face of the first clamping body, and the first clamping area and the second clamping area are oppositely arranged. The driving part is used for driving the second clamping body to enable the second clamping area to be close to or away from the first clamping area, a plurality of clamping positions which are oppositely arranged are arranged on the first clamping area and the second clamping area, at least two abutting base points are arranged on the clamping positions, and the abutting base points are used for abutting against the metal sample. The phenomena of edge rounding, inclination, edge pollution and the like of the sample in the grinding and polishing process are prevented, the shape and the quality of the edge of the sample are improved, and accurate and effective inspection data are provided for improving the process quality of products and researching and developing new varieties.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of metallographic sample preparation, and particularly to an auxiliary clamp for a round bar metallographic sample. BACKGROUND

[0002] Metallographic sample preparation is an important link of metallographic examination, and the processing quality of the sample directly affects the detection process of the sample, the accuracy of the detection data and the analysis of the professional personnel.

[0003] In a conventional round bar sample preparation method, a tester directly performs four steps of rough grinding, fine grinding, polishing and etching on the sample. Since the round bar sample is more difficult to handle than the rectangular sample, the tester is prone to the phenomena of round edge, inclination and edge contamination during the sample grinding process, especially for the sample of the analysis edge defect type and the sample with high edge quality requirement, which affects the edge morphology of the sample and cannot objectively and truly reflect the sample organization morphology, thereby failing to meet the needs of the scientific research testers. CONTENT OF THE INVENTION

[0004] The present disclosure aims to at least solve one of the problems existing in the prior art or related art.

[0005] To this end, the present disclosure provides an auxiliary clamp for a round bar metallographic sample, comprising a first clamping body, a second clamping body and a driving member, a mounting groove is formed in the first clamping body, a first clamping area is arranged on the side wall of the mounting groove, the second clamping body is slidingly connected in the mounting groove, a second clamping area is arranged on the side surface of the first clamping body, the first clamping area and the second clamping area are oppositely arranged, the driving member is used to drive the second clamping body to make the second clamping area close to or away from the first clamping area, wherein a plurality of oppositely arranged clamping positions are arranged on the first clamping area and the second clamping area, at least two abutting base points are arranged on the clamping position, and the abutting base points are used to abut against the metal sample.

[0006] In a feasible implementation, the driving member comprises a screw cap and a screw rod, the screw rod is screwed into or out of the mounting groove from the side wall of the first clamping body, and one end of the screw rod entering the mounting groove is arranged in correspondence with the face of the second clamping body which is opposite to the second clamping area, and the screw cap is arranged at the end of the screw rod outside the mounting groove.

[0007] In a feasible implementation, the screw rod is connected with the second clamping body through a rotating shaft.

[0008] In an embodiment, the screw has a first connecting end and a second connecting end, the first connecting end is connected with the screw cap, and the second connecting end is provided with a plurality of positioning holes, the plurality of positioning holes are arranged at intervals along the extension direction of the first connecting end, wherein the second clamping body is provided with a first connecting hole and a second connecting hole which are connected with each other, the first connecting hole is arranged perpendicularly to the second connecting hole, the first connecting hole is used for accommodating the first connecting end, the second connecting hole is provided with a positioning member, the positioning member is connected with one of the plurality of positioning holes, and the positioning member is used for fixing the relative position of the second clamping body and the screw.

[0009] In an embodiment, the number of clamping positions is three, and the three clamping positions are arranged at intervals.

[0010] In an embodiment, the clamping positions are arranged as through grooves along the height direction of the first clamping body and the second clamping body.

[0011] In an embodiment, the groove bottom of the through groove is arranged as an obtuse angle, the groove wall of the through groove is arranged as a plane, and the abutting base point is arranged on the groove wall of the through groove.

[0012] In an embodiment, the angle of the obtuse angle is 120 degrees.

[0013] In an embodiment, the mounting groove is provided with a slide on the side wall adjacent to the first clamping area, the second clamping body is provided with a sliding block, and the sliding block and the slide are in sliding connection, wherein,

[0014] The side of the slide away from the first clamping area is provided with a sliding block accommodation opening;

[0015] The sliding block is arranged on the side of the second clamping body away from the second clamping area.

[0016] In an embodiment, the first clamping body is arranged as a rectangle, and the first clamping body is provided with an anti-skid part on the side adjacent to the mounting groove.

[0017] Compared with the prior art, the present disclosure at least includes the following beneficial effects: the first clamping body of the present disclosure is a handheld part for sample grinding, a mounting groove is formed on the first clamping body, a first clamping area is arranged on the side wall of the mounting groove, a second clamping body is slidingly connected in the mounting groove, a second clamping area is arranged on the side surface of the first clamping body, the first clamping area and the second clamping area are oppositely arranged, and the distance between the first clamping area and the second clamping area can be adjusted to clamp a circular sample, wherein a driving member is used to drive the second clamping body to move the second clamping area close to or away from the first clamping area, and a plurality of oppositely arranged clamping positions are arranged on the first clamping area and the second clamping area, and at least two abutting base points are arranged on the clamping positions, the abutting base points are used to abut against the metal sample, and at least four points on the clamping positions on both sides can contact the sample, thereby increasing the contact area of the sample in the clamping position and ensuring the stability of the round bar sample. The present disclosure prevents the phenomena of round edge, inclination, edge pollution and the like of the sample during grinding and polishing, improves the edge shape and edge quality of the sample, and provides accurate and effective test data for improving product process quality and new product research and development. BRIEF DESCRIPTION OF DRAWINGS

[0018] The accompanying drawings, which are incorporated into and form part of the specification, illustrate embodiments consistent with the present disclosure and, together with the description, serve to explain the principles of the disclosure.

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced below. Obviously, other drawings can also be obtained by those skilled in the art without creative labor.

[0020] Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of exemplary embodiments. The accompanying drawings are for purposes of illustrating exemplary embodiments and are not intended to limit the application. Moreover, the same reference numerals are used throughout the various drawings to designate the same components. In the drawings:

[0021] Figure 1 is a schematic view of the three-dimensional structure of the present disclosure;

[0022] Figure 2 is a schematic view of the structure of the first clamping body of the present disclosure;

[0023] Figure 3 is a schematic view of the structure of the second clamping body and the driving member of the present disclosure;

[0024] Figure 4 is a schematic view of the structure of the first connecting hole and the second connecting hole of the present disclosure.

[0025] wherein, Figures 1 to 4The correspondence between the reference signs and the component names is as follows:

[0026] 1 - first clamping body; 11 - mounting groove; 12 - first clamping area; 13 - sliding channel; 131 - sliding block accommodation opening; 14 - sliding block; 2 - second clamping body; 21 - second clamping area; 22 - first connecting hole; 23 - second connecting hole; 3 - driving member; 31 - rotating cap; 32 - screw rod; 4 - clamping position; 5 - rotating shaft; 6 - positioning member. DETAILED DESCRIPTION

[0027] In order to enable a more clear understanding of the above-mentioned objects, features and advantages of the present disclosure, the schemes of the present disclosure will be further described below. It should be noted that the embodiments of the present disclosure and the features in the embodiments can be combined with each other without conflict.

[0028] In the following description, a large number of specific details are set forth in order to facilitate a thorough understanding of the present disclosure, but the present disclosure can also be implemented in other manners different from those described herein; obviously, the embodiments described in the specification are only a part of the embodiments of the present disclosure, and not all the embodiments.

[0029] At present, in the conventional round bar sample preparation method, the tester directly performs four steps of rough grinding, fine grinding, polishing and etching on the sample. Since the round bar sample is more difficult to handle than the rectangular sample, the tester is prone to the phenomena of round edge, inclination, edge contamination and the like during the sample grinding process, especially for the sample of the edge defect type and the sample with high edge quality requirement, the sample edge morphology is affected, the sample organization morphology cannot be objectively and truly reflected, and the needs of the scientific research testers cannot be met.

[0030] Based on this, the present disclosure provides a round bar metallographic sample auxiliary clamp. A first clamping body of the present disclosure serves as a handheld part for sample grinding, a mounting groove is formed in the first clamping body, a first clamping area is arranged on the side wall of the mounting groove, a second clamping body is slidingly connected in the mounting groove, a second clamping area is arranged on the side surface of the first clamping body, the first clamping area and the second clamping area are oppositely arranged, and the distance between the first clamping area and the second clamping area can be adjusted to clamp the round sample. A driving member is used to drive the second clamping body to move the second clamping area closer to or farther away from the first clamping area. A plurality of clamping positions are arranged on the first clamping area and the second clamping area in opposite directions. At least two abutting base points are arranged on each clamping position. The abutting base points are used to abut against the metal sample. At least four points on the clamping positions on both sides can contact the sample, thereby increasing the contact area of the sample in the clamping position and ensuring the stability of the round bar sample. The present disclosure prevents the phenomena of round edge, inclination, edge contamination and the like during the grinding and polishing process, improves the sample edge morphology and edge quality, and provides accurate and effective test data for improving product process quality and new product research and development.

[0031] The following will be described in detail through specific embodiments:

[0032] Referring to Figures 1 to 4 As shown in the drawings, the present disclosure provides a round bar metallographic specimen auxiliary clamp, comprising a first clamping body 1, a second clamping body 2 and a driving member 3, a mounting groove 11 is formed on the first clamping body 1, a first clamping area 12 is arranged on the side wall of the mounting groove 11, the second clamping body 2 is slidingly connected in the mounting groove 11, a second clamping area 21 is arranged on the side surface of the first clamping body 1, the first clamping area 12 and the second clamping area 21 are oppositely arranged, and the driving member 3 is used to drive the second clamping body 2 to make the second clamping area 21 close to or away from the first clamping area 12, wherein a plurality of oppositely arranged clamping positions 4 are arranged on the first clamping area 12 and the second clamping area 21, and at least two abutting base points are arranged on the clamping position 4, and the abutting base points are used to abut against the metal specimen.

[0033] The first clamping body 1 of the present disclosure is a handheld part for specimen grinding, a mounting groove 11 is formed thereon, a first clamping area 12 is arranged on the side wall of the mounting groove 11, a second clamping body 2 is slidingly connected in the mounting groove 11, a second clamping area 21 is arranged on the side surface of the first clamping body 1, the first clamping area 11 and the second clamping area 21 are oppositely arranged, and the distance therebetween can be adjusted to clamp the circular specimen, wherein the driving member 3 is used to drive the second clamping body 2 to make the second clamping area 21 close to or away from the first clamping area 11, and a plurality of oppositely arranged clamping positions 4 are arranged on the first clamping area 11 and the second clamping area 21, and at least two abutting base points are arranged on the clamping position 4, and the abutting base points are used to abut against the metal specimen, and at least four abutting base points on the clamping positions 4 on both sides can contact the specimen, thereby increasing the contact area of the specimen in the clamping position and ensuring the stability of the round bar sample. The present disclosure prevents the specimen from appearing round edge, inclination, edge pollution and other phenomena during grinding and polishing, improves the edge shape and edge quality of the sample, and provides accurate and effective test data for improving product process quality and new variety research and development.

[0034] Specifically, the clamped specimen of the present disclosure is a round bar metallographic specimen, the clamping position 4 can be arranged as a wedge-shaped groove or a supporting column, avoiding being arranged as a circular or arc-shaped groove as the clamping position 4, so that the round bar metallographic specimen can rotate in the clamping position 4, thereby affecting the grinding effect. The present disclosure specifically arranges the clamping position 4 as a wedge-shaped groove, and an anti-skid pad can also be arranged in the clamping position 4 to prevent the specimen from rotating during grinding.

[0035] The sliding distance of the second clamping body 2 in the mounting groove 11 can be adjusted according to the sample to be ground, and the sample in the embodiment of the present disclosure is a round bar sample with a size of 3-6 mm, so the sliding distance of the second clamping body 2 in the mounting groove 11 should be greater than 6 mm, so that the largest sample can be placed. A plurality of clamping positions 4 can simultaneously place a plurality of samples to improve the grinding efficiency, as shown in Figure 1 The number of clamping positions 4 in the present disclosure is specifically set to 3, and two round bar samples can be ground and polished at the same time, and the thickness of the sample groove can be designed according to the actual situation to meet the needs of different samples and improve the work efficiency of the inspectors. Moreover, the plurality of clamping positions 4 can clamp the sample at different positions to meet the needs of the sample position during grinding.

[0036] The driving member of the present disclosure can be set to automatic or manual, and the automatic driving member can select a telescopic air cylinder, a telescopic oil cylinder, a lead screw stepper motor, etc. The output end or moving end of the above mechanism abuts against or connects the second clamping body 2 to move it. In order to reduce the weight, the driving member 3 is specifically set to manual driving, and the position of the second clamping body 2 is specifically adjusted by sliding, and the second clamping body 2 is fixedly connected with the first clamping body 1 by using buckles or bolts when it is adjusted to the appropriate position. The driving member 3 can also be set to a bolt that is screwed with the first clamping body 1, and one end of the bolt is arranged in the mounting groove 11, and the end of the bolt abuts against the second clamping body 2 to move it when the bolt is rotated.

[0037] In some embodiments, the driving member 3 includes a rotating cap 31 and a screw rod 32, the screw rod 32 is screwed into or out of the mounting groove 11 from the side wall of the first clamping body 1, and one end of the screw rod 32 entering the mounting groove 11 is arranged corresponding to the side of the second clamping body 2 opposite to the second clamping area 21, and the rotating cap 31 is arranged at the end of the screw rod 32 outside the mounting groove 11.

[0038] In this embodiment, the screw rod 32 is screwed into or out of the mounting groove 11 from the side wall of the first clamping body 1, and one end of the screw rod 32 entering the mounting groove 11 is arranged corresponding to the side of the second clamping body 2 opposite to the second clamping area 21, and the rotating cap 31 is arranged at the end of the screw rod 32 outside the mounting groove 11. When in use, the rotating cap 31 is twisted to rotate the screw rod 32, and the end of the screw rod 32 abuts against the second clamping body 2 to move the second clamping area 21 on the second clamping body 2 towards the first clamping area 12, so as to clamp the sample placed between the second clamping area 21 and the first clamping area 12. This implementation can better maintain the clamping degree of the sample.

[0039] In some embodiments, the screw rod 32 is connected with the second clamping body 2 through the rotating shaft 5.

[0040] In this embodiment, the screw 32 is connected to the second clamping body 2 via the rotating shaft 5, which better secures the second clamping body 2 and prevents it from detaching from the mounting groove 11. Furthermore, the screw 32, connected to the second clamping body 2 via the rotating shaft 5, rotates independently, ensuring the movement of the second clamping body 2 without causing circumferential rotation. The relative position of the second clamping body 2 and the screw 32 is fixed, and the screw connection between the screw 32 and the first clamping body 1 allows it to move only in a straight line. Therefore, the movement of the second clamping body 2 within the mounting groove 11 is also linear, ensuring that the clamping positions 4 on the first and second clamping bodies 1 and 2 remain aligned at all times, thus guaranteeing the quality of sample clamping.

[0041] In some embodiments, the screw 32 has a first connecting end and a second connecting end. The first connecting end is connected to the screw cap 31, and the second connecting end is provided with a plurality of positioning holes. The plurality of positioning holes are spaced apart along the extending direction of the first connecting end. The surface of the second clamping body 2 has a first connecting hole 22 and a second connecting hole 23 that are connected to each other. The first connecting hole 22 and the second connecting hole 23 are perpendicularly arranged. The first connecting hole 22 is used to accommodate the first connecting end. The second connecting hole 23 is provided with a positioning member 6. The positioning member 6 is connected to one of the plurality of positioning holes. The positioning member is used to fix the relative position of the second clamping body 2 and the screw 32.

[0042] In this embodiment, such as Figure 4 As shown, the second clamping body 2 has a first connecting hole 22 and a second connecting hole 23 that are connected to each other. The first connecting hole 22 and the second connecting hole 23 are arranged perpendicularly. The second connecting end of the screw 32 is provided with multiple positioning holes. When adjusting the clamping range, the screw 32 can pass through the first connecting hole 22 into the second clamping body 2. At this time, the second clamping body 2 and the screw 32 are fixed by the connection between the positioning member 6 and the positioning hole. This embodiment can better achieve the stability between the components of this disclosure, thereby ensuring the stability during sample grinding.

[0043] In some embodiments, the number of clamping positions 4 is set to three, and the three clamping positions 4 are spaced apart to ensure that no interference occurs when multiple samples are ground at the same time.

[0044] In some embodiments, the clamping position 4 is configured as a through slot arranged along the height direction of the first clamping body 1 and the second clamping body 2.

[0045] In this embodiment, the clamping position 4 is configured as a through groove along the height direction of the first clamping body 1 and the second clamping body 2. The through groove can be specifically configured as a wedge-shaped groove, such as a triangular groove or a trapezoidal groove. The open ends of the through groove can better expose the grinding position of the sample.

[0046] In some embodiments, the groove bottom of the through groove is arranged as a female angle, and the groove wall of the through groove is arranged as a plane, and the abutting base point is arranged on the groove wall of the through groove.

[0047] In this embodiment, the groove bottom of the through groove is arranged as a female angle to avoid contact between the sample and the groove bottom, thereby ensuring the clamping stability of the circular sample. Further, the angle of the female angle is arranged as 120 degrees, so that the sample can be accommodated in the clamping position 4 to the maximum extent, thereby increasing the contact area between the sample and the side wall of the clamping position 4.

[0048] In some embodiments, the side wall adjacent to the first clamping area 12 of the mounting groove 11 is provided with a sliding groove 13, and the second clamping body 2 is provided with a sliding block 14, and the sliding block 14 and the sliding groove 13 are in sliding connection, wherein the side of the sliding groove 13 away from the first clamping area 12 is provided with a sliding block accommodation opening 131; the sliding block 14 is arranged on the side of the second clamping body 2 away from the second clamping area 21.

[0049] In this embodiment, the relative position of the second clamping body 2 and the first clamping body 1 is fixed by the sliding connection of the sliding block 14 and the sliding groove 13, which plays a role in preventing the second clamping body 2 from being separated from the mounting groove 11 of the first clamping body 1 during grinding. When separating the second clamping body 2 and the first clamping body 1, the second clamping body 2 can be separated from the first clamping body 1 through the sliding block accommodation opening 131.

[0050] In some embodiments, the first clamping body 1 is arranged as a rectangle, and the side surface of the first clamping body 1 adjacent to the mounting groove 11 is provided with an anti-skid part, so as to facilitate the operator to hold the grinding tool.

[0051] In the present disclosure, the terms "first", "second", "third" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance; the term "multiple" refers to two or more, unless otherwise explicitly limited. The terms "mounting", "connecting", "connecting", "fixing" and the like should be understood in a broad sense, for example, "connecting" can be fixed connection, or detachable connection, or integrally connected; "connected" can be directly connected, or indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the present disclosure can be understood according to the specific circumstances.

[0052] In the description of the present disclosure, it should be understood that the terms "upper", "lower", "left", "right", "front", "back" and the like indicate the orientation or positional relationship shown in the drawings, and are only used for the purpose of facilitating the description of the present disclosure and simplifying the description, and do not indicate or imply that the devices or units referred to must have a particular direction, be constructed and operated in a particular orientation, therefore, cannot be understood as a limitation on the present disclosure.

[0053] In the description of the specification, the description of the terms "one embodiment", "some embodiments", "certain embodiments", and the like is intended to indicate that the described implementation, feature, structure, material or characteristic is included in at least one embodiment or example of the present disclosure. The illustrative representations of the above terms in the specification are not necessarily referring to the same embodiment or example. Moreover, the described implementation, feature, structure, material or characteristic can be combined in any one or more embodiments or examples in a suitable manner.

[0054] The above only is the preferred embodiment of the present disclosure, and is not intended to limit the present disclosure. The present disclosure can have various modifications and changes for those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present disclosure shall be included in the protection scope of the present disclosure.

Claims

1. A round bar metallographic specimen auxiliary jig, characterized by, The utility model provides a metal sample clamping device, including first clamping body, second clamping body and drive piece, the first clamping body is set with installation groove, the side wall of installation groove is provided with first clamping area, the second clamping body is slidably connected in the installation groove, the side of first clamping body is provided with second clamping area, first clamping area and second clamping area are opposite, and the drive piece is used to drive second clamping body and make second clamping area close to or away from first clamping area, First clamping area and second clamping area are provided with a plurality of oppositely arranged clamping sites, and at least two abutting base points are arranged on the clamping sites, and the abutting base points are used for abutting with the metal sample.

2. The rod metallography specimen auxiliary fixture according to claim 1, characterized in that, The drive piece includes a screw cap and a screw rod, the screw rod is screwed into or out of the installation groove from the side wall of the first clamping body, and one end of the screw rod entering the installation groove is correspondingly arranged on the side of the second clamping body opposite to the second clamping area.

3. The metallographic specimen auxiliary clamp for a rod according to claim 2, characterized by The screw rod is connected to the second clamping body through a rotating shaft.

4. The rod metallographic specimen aid clamp of claim 2, wherein, The screw rod has a first connecting end and a second connecting end, the first connecting end is connected to the screw cap, and the second connecting end is provided with a plurality of positioning holes, and the plurality of positioning holes are arranged at intervals along the extension direction of the first connecting end. The surface of the second clamping body has a first connecting hole and a second connecting hole in communication, the first connecting hole is arranged vertically to the second connecting hole, the first connecting hole is used for accommodating the first connecting end, the second connecting hole is provided with a positioning member, the positioning member is connected to one of the plurality of positioning holes, and the positioning member is used for fixing the relative position of the second clamping body and the screw rod.

5. The rod metallography specimen aid clamp of claim 1, wherein, The number of clamping sites is three, and the three clamping sites are arranged at intervals.

6. The rod metallography specimen aid clamp of claim 1, wherein, The clamping site is arranged as a through groove along the height direction of the first clamping body and the second clamping body.

7. The rod metallography specimen aid clamp of claim 6, wherein, The trough bottom of the through groove is arranged as a female angle, the groove wall of the through groove is arranged as a plane, and the abutting base point is arranged on the groove wall of the through groove.

8. The rod metallography specimen aid clamp of claim 7, wherein, The angle of the female angle is 120 degrees.

9. The rod metallography specimen aid clamp of claim 1, wherein, The side wall adjacent to the first clamping area of the installation groove is provided with a slide, the second clamping body is provided with a sliding block, and the sliding block and the slide are slidably connected. The side of the slide away from the first clamping area is provided with a sliding block accommodation opening. The sliding block is arranged on the second clamping body away from the second clamping area.

10. The rod metallography specimen aid clamp of claim 1, wherein, The first clamping body is arranged as a rectangle, and the side surface adjacent to the installation groove of the first clamping body is provided with an anti-skid part.

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