Metallographic microscopic sample grinding auxiliary device

Abstract

The utility model discloses a kind of metallographic microscopic sample grinding auxiliary devices, relate to metallographic microscopic sample grinding field, including lifting assembly, pressure rod assembly and chuck assembly, the lifting assembly is by base, lifting rod, lifting rod sleeve and connecting rod composition, the lifting rod sleeve is sleeved in lifting rod outer, and can be moved along lifting rod axial direction to adjust height according to metallographic microscopic sample length.The utility model said a kind of metallographic microscopic sample grinding auxiliary device, the device can realize the high flatness, high efficiency, high quality fast preparation of metallographic microscopic sample grinding preparation by optimizing structure.Improve the quality and efficiency of sample processing, remove the potential safety hazard of operator mechanical injury.

Description

Technical Field

[0001] This utility model relates to the field of metallographic micro-sample grinding, and in particular to an auxiliary device for metallographic micro-sample grinding. Background Technology

[0002] In the process of grinding and polishing metallographic micro-samples using a metallographic sample grinding machine, manual hand-held grinding is typically used. However, this method demands a high level of skill and expertise from the operator, making it difficult to guarantee consistent processing quality, resulting in low efficiency and posing a safety risk of injury to personnel. Therefore, there is a need for a processing method or auxiliary device that can safely and quickly and accurately grind metallographic micro-samples, while simplifying the operation process, improving sample preparation efficiency, enhancing quality stability and repeatability, and ensuring the accuracy of metallographic structure analysis results.

[0003] The existing manual grinding process for metallographic microscopic samples requires manual hand operation, which poses a high risk of mechanical injury. Furthermore, the quality of the ground surface varies greatly depending on the operator's skill level, resulting in poor flatness and frequent rework. This has a certain impact on the efficiency of testing and the accuracy of the results.

[0004] This invention proposes an auxiliary grinding device for metallographic microscopic samples. The core objective of this device is to quickly fix the sample using a special clamp, and simultaneously perform grinding and polishing by applying directional pressure through a rigid guiding structure. This effectively improves the consistency and stability of sample preparation results, simplifies the operation process, reduces safety risks, reduces rework frequency, and improves the efficiency of metallographic microscopic detection. Utility Model Content

[0005] The main objective of this invention is to provide an auxiliary device for grinding metallographic micro-samples. This device can effectively solve the technical problems in the prior art where the manual grinding process of metallographic micro-samples requires manual hand operation, which poses a high risk of mechanical injury. Furthermore, the quality of the ground surface varies greatly depending on the operator's skill level, resulting in poor flatness, high rework frequency, and a certain degree of impact on the efficiency and accuracy of the test results.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A metallographic micro-sample grinding auxiliary device includes a lifting assembly, a pressure rod assembly, and a chuck assembly; The lifting assembly consists of a base, a lifting rod, a lifting rod sleeve, and a connecting rod. The lifting rod sleeve is fitted outside the lifting rod and can move along the lifting rod axis to adjust the height according to the length of the metallographic micro sample. The pressure rod assembly includes a guide shaft, a guide fixing ring, a guide bushing, a bushing end cap, a guide sleeve, a lower pressure end, and a compression spring. The guide fixing ring is fixed to the guide shaft by a set screw, the guide sleeve is fixed to the guide bushing by a screw, the bushing end cap covers both ends of the guide bushing to achieve a seal, and the bushing end cap cooperates with the guide fixing ring to restrict the compression spring on the guide shaft. The lower pressure end is connected to one end of the guide shaft. When a downward force is applied to the lower pressure end, the guide shaft can be driven to lower the subsequently connected chuck assembly and sample to contact the grinding equipment. After the force is removed, the compression spring can drive the guide shaft and the lower pressure end to return to their original positions. The connecting rod is used to connect the lifting assembly and the pressure rod assembly, so that the pressure rod assembly and the lifting assembly maintain a relatively fixed spatial position relationship.

[0007] As a further embodiment of this utility model, the lifting rod sleeve is provided with a locking screw. After the lifting rod sleeve is adjusted to the target height, tightening the locking screw can fix the lifting rod sleeve and the lifting rod relative to each other to maintain the adjusted height.

[0008] As a further embodiment of this utility model, the connection position between the guide sleeve and the guide bushing can be adjusted along the axial direction of the guide bushing, and then locked and fixed by screws to adapt to the pressure position requirements under different grinding scenarios.

[0009] As a further embodiment of this utility model, the base is provided with fixing holes or fixing buckles for connecting with a metallographic sample grinding machine. The device is fixed in a preset position on the metallographic sample grinding machine by means of bolts passing through the fixing holes or buckles.

[0010] As a further embodiment of this utility model, the chuck assembly consists of a sample chuck and a chuck screw. The chuck screw passes through the side wall of the sample chuck, and by tightening or loosening the chuck screw, metallographic microscopic samples of different sizes and shapes can be clamped and fixed.

[0011] As a further embodiment of this utility model, a rubber washer is glued to the end of the collet screw. When the collet screw is tightened, the rubber washer can flexibly contact the sample surface, avoiding excessive clamping force that could damage the sample, while also enhancing clamping stability.

[0012] The beneficial effects of this utility model are as follows: 1. High adaptability: This device is suitable for clamping metallographic microscopic samples of various lengths and shapes.

[0013] 2. High reliability: It replaces manual hand-held processing, eliminates the potential safety hazards of mechanical injury to operators, and improves the quality and efficiency of metallographic micro sample grinding and processing.

[0014] 3. Easy to maintain and service: The device has a simple structure and the components are easy to disassemble and clean, which reduces maintenance costs.

[0015] 4. Significant cost-effectiveness: It improves the quality and efficiency of metallographic micro-sample grinding, reduces rework rate, and reduces the occurrence of production safety accidents, bringing significant economic benefits to enterprises. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of a metallographic micro-sample grinding auxiliary device according to the present invention; Figure 2 This is an exploded view of the lifting assembly, pressure rod assembly, and chuck assembly of a metallographic microscopic sample grinding auxiliary device according to this utility model; Figure 3 This is a structural diagram of the pressure rod assembly of a metallographic microscopic sample grinding auxiliary device according to the present invention; Figure 4 This is a structural diagram of the chuck assembly of a metallographic microscopic sample grinding auxiliary device according to the present invention; Figure 5 This is an exploded view of the pressure bar assembly of a metallographic microscopic sample grinding auxiliary device according to the present invention.

[0017] In the diagram: 1. Lifting assembly; 2. Pressure rod assembly; 3. Clamp assembly; 4. Base; 5. Lifting rod; 6. Lifting rod sleeve; 7. Connecting rod; 8. Guide shaft; 9. Guide bushing; 10. Guide fixing ring; 11. Bushing end cap; 12. Guide sleeve; 13. Downward pressing end; 14. Sample clamp; 15. Clamp screw. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Example 1 Combination Figures 1-5 A metallographic micro sample grinding auxiliary device includes a lifting assembly 1, a pressure rod assembly 2, and a clamp assembly 3; The lifting assembly 1 consists of a base 4, a lifting rod 5, a lifting rod sleeve 6, and a connecting rod 7. The lifting rod sleeve 6 is fitted outside the lifting rod 5 and can move along the axial direction of the lifting rod 5 to adjust the height according to the length of the metallographic micro sample. The connecting rod 7 is used to connect the lifting assembly 1 and the pressure rod assembly 2, so that the pressure rod assembly 2 and the lifting assembly 1 maintain a relatively fixed spatial position relationship.

[0020] See Figure 3 and Figure 5 Furthermore, the pressure rod assembly 2 includes a guide shaft 8, a guide fixing ring 10, a guide bushing 9, a bushing end cap 11, a guide sleeve 12, a pressing end 13, and a compression spring. The guide fixing ring 10 is fixed to the guide shaft 8 by a set screw, the guide sleeve 12 is fixed to the guide bushing 9 by a screw, the bushing end cap 11 covers both ends of the guide bushing 9 to achieve a seal on the guide bushing 9, and the bushing end cap 11 cooperates with the guide fixing ring 10 to restrict the compression spring on the guide shaft 8. The pressing end 13 is connected to one end of the guide shaft 8. When a downward force is applied to the pressing end 13, the guide shaft 8 can be driven to drive the subsequently connected chuck assembly 3 and the sample to descend to contact the grinding equipment. After the force is removed, the compression spring can drive the guide shaft 8 and the pressing end 13 to reset.

[0021] Specifically, the lifting rod sleeve 6 can be adjusted to a suitable height, and a vertical downward force is applied to the pressing end 13 to make the sample contact the grinding machine, and the grinding process can begin.

[0022] Example 2 See Figure 3 and Figure 5 Furthermore, based on Embodiment 1, the lifting rod sleeve 6 is equipped with a locking screw. After the lifting rod sleeve 6 is adjusted to the target height, tightening the locking screw can fix the lifting rod sleeve 6 and the lifting rod 5 relative to each other to maintain the adjusted height. The connection position between the guide sleeve 12 and the guide bushing 9 can be adjusted along the axial direction of the guide bushing 9. After adjustment, it is locked and fixed by screws to adapt to the pressure position requirements under different grinding scenarios. The base 4 is equipped with a fixing hole or fixing buckle for connecting with the metallographic sample grinding machine. The device is fixed in the preset position of the metallographic sample grinding machine by bolts passing through the fixing hole or buckle.

[0023] Specifically, adjust the lifting rod sleeve 6 to a suitable height and tighten it with screws to fix the height, making it easy to adapt to the sample length.

[0024] Example 3 See Figure 4 Furthermore, based on Embodiment 1 and Embodiment 2, the chuck assembly 3 is further composed of a sample chuck 14 and a chuck screw 15. The chuck screw 15 passes through the side wall of the sample chuck 14. By tightening or loosening the chuck screw 15, metallographic microscopic samples of different sizes and shapes can be clamped and fixed. A rubber gasket is glued to the end of the chuck screw 15. When the chuck screw 15 is tightened, the rubber gasket can flexibly contact the sample surface to avoid excessive clamping force from damaging the sample, while enhancing clamping stability.

[0025] Specifically, the three collet screws 15 are arranged in a ring array, which can clamp samples of different shapes, and the rubber pad can protect the samples.

[0026] It should be noted that this utility model is an auxiliary device for grinding metallographic microscopic samples. In use, the device is fixed in a suitable position on the metallographic sample grinding machine by the base 4. The metallographic microscopic sample is placed in the sample chuck 14 and the chuck screw 15 is tightened to clamp the sample. The lifting rod sleeve 6 is adjusted to a suitable height and locked with screws. A vertical downward force is applied to the lower pressure end 13 to make the sample contact the grinding machine and start the grinding process. After the processing is completed, the lower pressure end 13 is released, the pressure rod assembly 2 is reset, and the sample is removed.

[0027] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A metallographic micro-sample grinding auxiliary device, comprising a lifting assembly (1), a pressure rod assembly (2), and a chuck assembly (3), characterized in that: The lifting assembly (1) consists of a base (4), a lifting rod (5), a lifting rod sleeve (6) and a connecting rod (7). The lifting rod sleeve (6) is fitted outside the lifting rod (5) and can move along the axial direction of the lifting rod (5) to adjust the height according to the length of the metallographic micro sample. The pressure rod assembly (2) includes a guide shaft (8), a guide fixing ring (10), a guide bushing (9), a bushing end cap (11), a guide sleeve (12), a pressing end (13), and a compression spring. The guide fixing ring (10) is fixed to the guide shaft (8) by a set screw. The guide sleeve (12) is fixed to the guide bushing (9) by a screw. The bushing end cap (11) covers both ends of the guide bushing (9) to achieve a seal. The bushing end cap (11) cooperates with the guide fixing ring (10) to restrict the compression spring on the guide shaft (8). The pressing end (13) is connected to one end of the guide shaft (8). When a downward force is applied to the pressing end (13), the guide shaft (8) can be driven to drive the subsequently connected chuck assembly (3) and the sample to descend to contact the grinding equipment. After the force is removed, the compression spring can drive the guide shaft (8) and the pressing end (13) to reset. The connecting rod (7) is used to connect the lifting assembly (1) and the pressure rod assembly (2) so that the pressure rod assembly (2) and the lifting assembly (1) maintain a relatively fixed spatial position relationship.

2. The metallographic microscopic sample grinding auxiliary device according to claim 1, characterized in that: The lifting rod sleeve (6) is provided with a locking screw. When the lifting rod sleeve (6) is adjusted to the target height, tightening the locking screw can fix the lifting rod sleeve (6) and the lifting rod (5) relative to each other to maintain the adjusted height.

3. The metallographic microscopic sample grinding auxiliary device according to claim 1, characterized in that: The connection position between the guide sleeve (12) and the guide bushing (9) can be adjusted along the axial direction of the guide bushing (9). After adjustment, it can be locked and fixed by screws to adapt to the pressure position requirements under different grinding scenarios.

4. The metallographic microscopic sample grinding auxiliary device according to claim 1, characterized in that: The base (4) is provided with fixing holes or fixing buckles for connecting with the metallographic sample grinding machine. The device is fixed in a preset position on the metallographic sample grinding machine by means of bolts passing through the fixing holes or buckles.

5. The metallographic microscopic sample grinding auxiliary device according to claim 1, characterized in that: The chuck assembly (3) consists of a sample chuck (14) and a chuck screw (15). The chuck screw (15) passes through the side wall of the sample chuck (14). By tightening or loosening the chuck screw (15), metallographic micro-samples of different sizes and shapes can be clamped and fixed.

6. The metallographic microscopic sample grinding auxiliary device according to claim 5, characterized in that: The end of the collet screw (15) is glued with a rubber gasket. When the collet screw (15) is tightened, the rubber gasket can flexibly contact the sample surface, avoiding excessive clamping force that could damage the sample, while also enhancing clamping stability.

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