A cylindrical inlay metallographic specimen corrosion clamp device
By designing a fixture device for etching cylindrical metallographic specimens, the problems of cylindrical specimens easily falling off during the etching process and the etching solution coming into contact with the skin were solved, thus achieving stable fixation of the specimens and safety protection for the operator.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BENGANG STEEL PLATES CO LTD
- Filing Date
- 2025-06-24
- Publication Date
- 2026-06-26
AI Technical Summary
In existing technologies, cylindrical metallographic specimens are prone to detachment during the etching process, and the etching solution can easily come into contact with the skin, resulting in low operational safety and efficiency.
A cylindrical metallographic specimen etching fixture device was designed, including a clamping part, a hand-held part, and a connecting part. The combination of the fixture body, fastening bolts, and L-shaped hand-held bar achieves stable fixation of the specimen and keeps the operator away from the etching liquid.
It effectively prevents samples from falling off and avoids corrosive liquids from coming into contact with the skin, thus improving operational safety and experimental efficiency.
Smart Images
Figure CN224407336U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of metallographic sample etching tools, and more specifically, to a cylindrical inlaid metallographic sample etching fixture device. Background Technology
[0002] In the preparation of metallographic specimens, etching is a critical step, typically involving immersing the cut, mounted, and polished specimens in an etching solution. Currently, operators often hold the specimens directly during etching, causing the etching solution to flow along the specimen surface onto the operator's hands, resulting in skin burns. To avoid direct contact, tweezers are used to hold the specimens in some scenarios; however, cylindrical specimens, due to their smooth surfaces, are prone to slipping out of the tweezers, affecting experimental efficiency and increasing safety risks.
[0003] While existing technologies include fixture designs for metallographic specimens, they primarily focus on general clamping or limiting functions, without addressing the dual problems of cylindrical specimens being prone to detachment and the corrosive liquid coming into contact with the skin.
[0004] Therefore, there is an urgent need for a special clamping device that can prevent sample detachment and prevent contact with corrosion liquid, especially to solve the problem of operational safety and stability of cylindrical samples during the corrosion process. Utility Model Content
[0005] To address the aforementioned technical problems, a fixture device for etching cylindrical metallographic specimens is provided. This device, consisting of a clamping part, a handheld part, and a connecting part, solves the problem of specimen detachment and contact of the etching solution with the skin.
[0006] To achieve the above objectives, this utility model provides a clamping device for etching cylindrical inlaid metallographic specimens, comprising: a clamping part, a hand-held part, and a connecting part;
[0007] The clamping part includes a clamping body and two fastening bolts. The clamping body is used to fix the cylindrical metallographic sample, and the fastening bolts are symmetrically arranged on both sides of the clamping body to adjust the clamping force of the clamping body.
[0008] The handheld part is an L-shaped hand stick, which is used by the operator to hold it away from corrosive liquid;
[0009] The connecting part consists of four connecting rods. One end of each connecting rod is fixedly connected to the main body of the clamp, and the other end is fixedly connected to an L-shaped handheld rod, forming a stable support structure.
[0010] Furthermore, the fixture body is a cylindrical structure, and its inner diameter matches the cylindrical metallographic sample. The sample is fixed by tightening two fastening bolts.
[0011] Furthermore, the L-shaped handheld stick has a bending angle of 90° and includes a long arm end and a short arm end. The long arm end is fixedly connected to the connecting rod, and the short arm end is the part for the operator to hold.
[0012] Furthermore, the four connecting rods are symmetrically distributed around the circumference of the clamp body, and are rigidly connected to both the clamp body and the L-shaped hand-held rod, ensuring the overall structure is stable.
[0013] Furthermore, the threaded end of the fastening bolt penetrates the side wall of the fixture body, and the clamping force of the fixture body on the sample can be adjusted by tightening or loosening it.
[0014] Furthermore, the handheld part and the connecting part are integrally formed, and the clamping part is fixedly connected by bolts to form a non-removable integral structure.
[0015] By adopting the above technical solution, this utility model has the following advantages compared with the prior art:
[0016] 1. The present invention provides a clamping device for etching cylindrical inlaid metallographic specimens. The clamping body of the clamping part and two symmetrically arranged fastening bolts firmly fix the surface of the cylindrical specimen, solving the problem of easy slippage when clamped by tweezers.
[0017] 2. The cylindrical inlaid metallographic sample etching fixture device provided by this utility model adopts an L-shaped hand-held bar design. When the operator holds the hand-held part, it is far away from the flow path of the etching liquid, so as to prevent the etching liquid from flowing along the sample to the hand.
[0018] 3. The cylindrical inlaid metallographic sample etching fixture device provided by this utility model has a connecting part composed of 4 connecting rods to firmly connect the clamping part and the hand-held part, ensuring that the device is subjected to uniform force during sample etching and reducing the risk of shaking. Attached Figure Description
[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0020] Figure 1 This is a front view of the structure of a cylindrical inlaid metallographic sample etching fixture device according to the present invention;
[0021] Figure 2 This is a top view of the structure of a cylindrical inlaid metallographic sample etching fixture device according to the present invention.
[0022] In the diagram: 1. Fastening bolt; 2. Connecting rod; 3. L-shaped hand-held rod; 4. Fixture body. Detailed Implementation
[0023] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other. The present utility model will now be described in detail with reference to the accompanying drawings and embodiments.
[0024] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit this utility model or its application or use. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0025] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to the present invention. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.
[0026] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values of the components and steps described in these embodiments do not limit the scope of this invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.
[0027] In the description of this utility model, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is usually based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.
[0028] For ease of description, spatial relative terms such as "above," "over," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation besides the orientation of the device as described in the figures. For example, if the device in the figures is inverted, a device described as "above" or "above" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.
[0029] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this utility model.
[0030] like Figures 1 to 2 As shown, this utility model provides a clamping device for etching cylindrical inlaid metallographic specimens, including: a clamping part, a hand-held part, and a connecting part;
[0031] The clamping part includes a clamping body 4 and two fastening bolts 1. The clamping body 4 adopts a cylindrical cavity structure, and its inner diameter matches that of a standard cylindrical metallographic sample. The two fastening bolts 1 are symmetrically embedded in the threaded holes on both sides of the clamping body 4. The clamping body 4 is used to fix the cylindrical metallographic sample. The fastening bolts 1 are symmetrically arranged on both sides of the clamping body 4 to adjust the clamping force of the clamping body 4.
[0032] The handheld part is an L-shaped handheld stick 3, with the long arm end welded and fixed to the connecting rod 2, and the short arm end being the length for the operator to hold, avoiding direct contact between the hand and the corrosive liquid, and preventing skin corrosion;
[0033] The connecting part consists of four connecting rods 2. One end of the connecting rod 2 is fixedly connected or welded to the fixture body 4, and the other end is fixedly connected or welded to the long arm end of the L-shaped handheld rod 3, forming a stable rigid connection support structure. The rigid connection structure prevents the sample from falling off during the corrosion process.
[0034] Furthermore, the fixture body 4 is a cylindrical structure with an inner diameter that matches the cylindrical metallographic sample. The sample is fixed by tightening two fastening bolts 1. When the fastening bolts 1 on both sides are tightened, the threaded ends of the bolts press against the sidewall of the sample towards the center, generating a radial clamping force. This accommodates samples of different diameters and prevents the sample from loosening. The cylindrical cavity structure ensures that the sample is subjected to uniform force and prevents local deformation.
[0035] Furthermore, the L-shaped handheld stick 3 has a bending angle of 90° and includes a long arm end and a short arm end. The long arm end is fixedly connected to the connecting rod 2, and the short arm end is the part for the operator to hold.
[0036] Furthermore, the four connecting rods 2 are evenly and symmetrically distributed around the circumference of the fixture body 4 at 90° intervals, and are rigidly connected to the fixture body 4 and the L-shaped hand-held rod 3. The symmetrical support structure counteracts torque, prevents the sample from tilting, and ensures the stability of the overall structure.
[0037] Furthermore, the threaded end of the fastening bolt 1 penetrates the side wall of the clamp body 4. The clamping force of the clamp body 4 on the sample can be adjusted by tightening or loosening the bolt. When tightened, the end of the bolt abuts against the side wall of the sample; when loosened, the bolt retracts into the hole in the side wall. The clamping force can be precisely adjusted according to different sample sizes.
[0038] Furthermore, the handheld part and the connecting part are integrally formed, and the clamping part is fixedly connected by bolts to form a non-removable integral structure, which prevents corrosive liquid from seeping into the gaps, extends the service life, and reduces maintenance needs.
[0039] In actual use of this embodiment: the cylindrical metallographic sample is placed into the cylindrical cavity of the fixture body 4, and the clamping force is adjusted by tightening the fastening bolts 1 on both sides until the sample is stable and not loose.
[0040] The operator holds the short arm of the L-shaped hand stick 3 and immerses the sample in the etching solution, ensuring that the hand is kept away from the etching solution.
[0041] After corrosion is complete, loosen the fastening bolt 1 and remove the sample, avoiding direct contact between your hands and the corrosive liquid or the sample.
[0042] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.
Claims
1. A fixture device for etching cylindrical metallographic specimens, characterized in that, include: Clamping part, hand-held part, connecting part; The clamping part includes a clamping body and two fastening bolts. The clamping body is used to fix the cylindrical metallographic sample, and the fastening bolts are symmetrically arranged on both sides of the clamping body to adjust the clamping force of the clamping body. The handheld part is an L-shaped hand stick, which is used by the operator to hold it away from corrosive liquid; The connecting part consists of four connecting rods. One end of each connecting rod is fixedly connected to the main body of the clamp, and the other end is fixedly connected to an L-shaped handheld rod, forming a stable support structure.
2. The fixture device for etching cylindrical inlaid metallographic specimens according to claim 1, characterized in that, The fixture body is a cylindrical structure, and its inner diameter matches the cylindrical metallographic sample. The sample is fixed by tightening two fastening bolts.
3. The fixture device for etching cylindrical inlaid metallographic specimens according to claim 1, characterized in that, The L-shaped handheld stick has a bending angle of 90° and includes a long arm end and a short arm end. The long arm end is fixedly connected to the connecting rod, and the short arm end is the part that the operator holds.
4. The fixture device for etching cylindrical inlaid metallographic specimens according to claim 1, characterized in that, The four connecting rods are symmetrically distributed around the circumference of the clamp body, and are rigidly connected to both the clamp body and the L-shaped hand-held rod, ensuring the overall structure is stable.
5. The fixture device for etching cylindrical inlaid metallographic specimens according to claim 1, characterized in that, The threaded end of the fastening bolt penetrates the side wall of the fixture body, and the clamping force of the fixture body on the sample can be adjusted by tightening or loosening it.
6. The fixture device for etching cylindrical inlaid metallographic specimens according to claim 1, characterized in that, The handle and the connecting part are integrally formed, and the clamping part is fixedly connected by bolts to form a non-removable integral structure.