Ball metallographic specimen embedding structure

Abstract

The utility model relates to a ball metallographic specimen embedding structure which comprises a metallographic box, the inlaying mechanism is arranged at the top of the metallographic box so as to adapt to test articles with different sizes; and the pressing mechanism is arranged above the metallographic box, is matched with the inlaying mechanism and is used for pressing the test sample. According to the embedding structure for the ball metallographic sample, the embedding mechanism is arranged to bear the sample to be embedded, and under the pressing action of the pressing mechanism, the embedding material is fully filled around the sample and is tightly combined with the sample, so that the subsequent grinding, polishing and microscopic observation are facilitated, the embedding work of samples with different sizes can be met, and the working efficiency is improved. And the universality is higher, frequent mold opening is not needed, and the production cost is saved.

Description

Technical Field

[0001] This utility model belongs to the technical field of metallographic sample preparation equipment, specifically relating to a ball bearing metallographic sample embedding structure. Background Technology

[0002] Metallographic specimen mounting machine is a device for mounting and shaping small or irregularly shaped specimens that are difficult to handle with thermosetting plastics. It is also an essential pre-process for grinding and polishing. The metallographic specimen mounting machine uses thermosetting materials to mount and shape the specimen, so that the mounting material is fully filled around the specimen and tightly bonded to the specimen, which facilitates the analysis of the specimen material.

[0003] Existing metallographic sample mounting machines can only mount ball bearing samples of a specific size. For samples of different sizes, molds need to be made to produce mounting machines of different specifications, which has poor versatility and also increases production costs. Utility Model Content

[0004] This invention provides a ball bearing metallographic sample mounting structure, which solves the problem that existing metallographic sample mounting machines can only mount samples of a specific size. When faced with samples of different sizes, it is necessary to open molds to make mounting machines of different specifications, which has poor versatility and also increases production costs.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is: a ball bearing metallographic sample embedding structure, which includes:

[0006] Metallographic box;

[0007] An inlay mechanism is provided on the top of the metallographic box to accommodate balls of different sizes;

[0008] A pressing mechanism is disposed above the metallographic box and cooperates with the inlay mechanism to press the ball bearings.

[0009] Optimally, the inlay mechanism includes a lifting plate that is vertically and vertically disposed within the metallographic box, sleeves of different diameters that are arranged around the top of the metallographic box, a top post that is arranged around the top of the lifting plate and cooperates with the sleeve, and a heating wire that is spirally disposed on the outside of the sleeve.

[0010] Ideally, the pressing assembly includes a support frame fixed to one side of the metallographic box, a pressure plate that is vertically and flexibly disposed at the bottom of the support frame, and a pressing head that is circumferentially disposed at the bottom of the pressure plate and cooperates with the sleeve.

[0011] Optimally, the inlay mechanism further includes a ball screw rotatably mounted inside the metallographic box and connected to the lifting plate, a first bevel tooth sleeved at the bottom of the ball screw, a second bevel tooth meshing with the first bevel tooth, and a drive motor connected to the second bevel tooth.

[0012] Optimally, the inlay mechanism further includes a guide post fixed inside the metallographic box, an upper limit block and a lower limit block fixed at intervals on the guide post, and a guide hole penetrating the lifting plate and cooperating with the guide post, wherein the lifting plate is located between the upper limit block and the lower limit block.

[0013] Optimally, the pressing mechanism further includes a guide sleeve embedded in the top of the support frame, a guide post fixed to the top of the pressure plate and passing through the guide sleeve, and a cylinder fixed to the top of the support frame and connected to the pressure plate.

[0014] Ideally, the diameter of the top post is equal to the diameter of the pressure head, and the diameter of the top post is equal to the inner diameter of the sleeve.

[0015] Due to the application of the above technical solution, this utility model has the following advantages compared with the prior art:

[0016] This utility model of ball bearing metallographic sample mounting structure uses a mounting mechanism to support the sample to be mounted. Under the pressing action of the pressing mechanism, the mounting material is fully filled around the sample and tightly bonded to it, which facilitates subsequent grinding, polishing and microscopic observation. Moreover, it can meet the mounting work of samples of different sizes, making it more versatile and eliminating the need for frequent mold opening, thus saving production costs. Attached Figure Description

[0017] Figure 1 This is a front view of the present invention in its first state;

[0018] Figure 2 This is a front view of the present invention in its second state;

[0019] Figure 3 This is a partial schematic diagram of the present invention;

[0020] Explanation of reference numerals in the attached figures:

[0021] 1. Base plate; 2. Support column; 3. Metallographic box; 4. Guide column; 5. Lower limit block; 6. Upper limit block; 7. Gearbox; 8. First bevel gear; 9. Second bevel gear; 10. Motor mounting plate; 11. Drive motor; 12. Ball screw; 13. Lifting plate; 14. Top column; 15. Sleeve; 16. Heating wire; 17. Support frame; 18. Guide sleeve; 19. Guide column; 20. Cylinder; 21. Pressure plate; 22. Pressure head; 23. Guide hole. Detailed Implementation

[0022] The present invention will be further described below with reference to the embodiments shown in the accompanying drawings.

[0023] like Figure 1 , 2 The diagram shown is a schematic of the ball metallographic sample mounting structure of this utility model, including a metallographic box 3, a mounting mechanism and a pressing mechanism. By cooperating with the mounting mechanism and the pressing mechanism, ball metallographic samples of different sizes are mounted, thereby improving the versatility of the structure.

[0024] The base plate 1 is a rectangular metal plate, which is fixed to the testing machine platform by bolts. The mounting mechanism and the pressing mechanism are both installed on the top of the base plate 1, and the pressing mechanism is mounted above the mounting mechanism. Together with the mounting mechanism, they complete the mounting of the ball metallographic sample.

[0025] like Figure 3 The image shows the main view of the inlay mechanism, which includes a support column 2, a metallographic box 3, a guide column 4, a lower limit block 5, an upper limit block 6, a gearbox 7, a first bevel gear 8, a second bevel gear 9, a motor fixing plate 10, a drive motor 11, a ball screw 12, a lifting plate 13, a top column 14, a sleeve 15, and a heating wire 16. The support column 2 is fixed to the top of the base plate 1 to support the metallographic box 3 (specifically, the support column 2 is vertically fixed to the top of the base plate 1 by welding, and there are at least four support columns 2 to support the metallographic box 3 and improve the stability of the support).

[0026] The metallographic box 3 is a box-like structure, fixed to the top of the support column 2 by welding (the support column 2 is located at the four corners of the bottom of the metallographic box 3 to ensure the stability of the metallographic box 3). The support column 2 supports the metallographic box 3, ensuring that there is sufficient space between the metallographic box 3 and the base plate 1 for the installation of the drive mechanism.

[0027] The ball screw 12 is rotatably mounted inside the metallographic chamber 3 (specifically, the ball screw 12 is vertically mounted inside the metallographic chamber 3, and both ends of the ball screw 12 are rotatably mounted on the top and bottom of the metallographic chamber 3 respectively via bearings). The lower end of the ball screw 12 extends to the bottom of the metallographic chamber 3, and the first bevel tooth 8 is mounted on the screw of the ball screw 12 by a key connection.

[0028] The motor mounting plate 10 is fixed to the bottom of the metallographic box 3 by welding. The housing of the drive motor 11 is fixed to one side of the motor mounting plate 10 by screws. The second bevel gear 9 is mounted on the motor shaft of the drive motor 11 by key connection and meshes with the first bevel gear 8. The drive motor 11 drives the second bevel gear 9 to rotate, which in turn drives the first bevel gear 8 and the ball screw 12 to rotate.

[0029] The gearbox 7 is fixed to the bottom of the metallographic box 3 by screws. The first bevel gear 8 and the second bevel gear 9 are set inside the gearbox 7. The gearbox 7 protects the first bevel gear 8 and the second bevel gear 9 inside, and also improves the safety factor to prevent operators from accidentally touching the gears and causing safety accidents.

[0030] The lifting plate 13 is fixed on the screw nut of the ball screw 12. When the drive motor 11 drives the screw of the ball screw 12 to rotate, it will drive the lifting plate 13 to move up and down, thereby completing the embedding of the ball metallographic sample.

[0031] The guide post 4 is fixed to the inner bottom of the metallographic box 3 by welding and is vertically arranged. The guide hole 23 penetrates the lifting plate 13 and cooperates with the guide post 4. The diameter of the guide hole 23 is equal to the diameter of the guide post 4. By setting the mutually cooperating guide hole 23 and guide post 4, the lifting movement of the lifting plate 13 is guided, thereby improving its movement stability.

[0032] The upper limit block 6 and the lower limit block 5 are fixed on the guide post 4 respectively to limit the two extreme positions of the lifting plate 13 and ensure the smooth progress of the embedding process (in the actual assembly process, the lower limit block 5 is fixed first, and after the lifting plate 13 is fitted onto the guide post 4, the upper limit block 6 is fixed).

[0033] The sleeve 15 is ring-shaped on the top of the metallographic chamber 3 and extends into the metallographic chamber 3. The sleeve 15 has different diameters to accommodate ball bearing metallographic samples of different sizes, improving versatility. The top post 14 is ring-shaped on the top of the lifting plate 13 and cooperates with the sleeve 15. The diameter of the top post 14 is equal to the inner diameter of the sleeve 15. The top post 14 is used to support the ball bearing metallographic sample to be mounted or to eject the mounted sample.

[0034] The heating wire 16 is spirally arranged on the outside of the sleeve 15 and connected to an external power source. When energized, the heating wire 16 converts electrical energy into heat energy, thereby embedding the ball metallographic sample inside the sleeve 15.

[0035] The pressing mechanism includes a support frame 17, a guide sleeve 18, a guide column 19, a cylinder 20, a pressure plate 21, and a pressure head 22. The support frame 17 is L-shaped and is fixed to the top of the base plate 1 by welding, extending above the metallographic box 3. The guide sleeve 18 is embedded in the top of the support frame 17, and the guide column 19 passes through the guide sleeve 18 and fixes the pressure plate 21. By setting the mutually cooperating guide sleeve 18 and guide column 19, the stability of the lifting and lowering movement of the pressure plate 21 is ensured.

[0036] The cylinder body of cylinder 20 is fixed to the top of support frame 17 by screws. The piston rod of cylinder 20 passes through support frame 17 and is fixed to the top of pressure plate 21. Cylinder 20 drives pressure plate 21 to move up and down.

[0037] The pressure head 22 is located at the bottom of the pressure plate 21 and cooperates with the sleeve 15. The diameter of the pressure head 22 is equal to the inner diameter of the sleeve 15. The pressure head 22 presses the ball metallographic sample inside the sleeve 15 and finally completes the embedding under the heating action of the heating wire 16.

[0038] The embedding principle of the ball metallographic specimen embedding structure of this utility model is as follows:

[0039] First, start the drive motor 11. The drive motor 11 drives the second bevel gear 9 to rotate, which in turn drives the first bevel gear 8 and the ball screw 12 to rotate. The rotating ball screw 12 drives the lifting plate 13 to rise until it abuts against the bottom of the upper limit block 6 (e.g., Figure 2 As shown, at this time, the upper surface of the top column 14 should be higher than the upper surface of the metallographic box 3 to facilitate the operator placing the ball metallographic sample on the top column 14; after the operator places the ball metallographic sample on the top column 14, the drive motor 11 rotates in the opposite direction, driving the second bevel gear 9 to rotate, which in turn drives the first bevel gear 8 and the ball screw 12 to rotate. The rotating ball screw 12 drives the lifting plate 13 to descend until it abuts against the top of the lower limit block 5 (as shown). Figure 1 As shown, at this time, the upper surface of the top post 14 should be higher than the lower surface of the sleeve 15. When the operator pours the insert into the sleeve 15, the insert should be prevented from spilling out from the bottom of the sleeve 15.

[0040] Then the operator pours the insert material (such as thermosetting resin) into the sleeve 15. Then the cylinder 20 drives the pressure plate 21 down until the pressure head 22 is inserted into the sleeve 15. At this time, the insert material and the ball metallographic sample are squeezed between the top column 14 and the pressure head 22. The power supply connected to the heating wire 16 is turned on, and a curing reaction occurs under heating and pressure conditions, so that the insert material fully fills the area around the sample and is tightly bonded to the sample, which is convenient for subsequent grinding, polishing and microscopic observation.

[0041] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be included within the scope of protection of this utility model.

Claims

1. A ball bearing metallographic specimen mounting structure, characterized in that it include: Metallographic box (3); An inlay mechanism is provided on the top of the metallographic box (3) to accommodate samples of different sizes; A pressing mechanism is disposed above the metallographic box (3) and cooperates with the inlay mechanism for pressing the test sample.

2. The ball bearing metallographic specimen mounting structure according to claim 1, characterized in that: The inlay mechanism includes a lifting plate (13) that can be lifted and lowered inside the metallographic box (3), sleeves (15) that are arranged around the top of the metallographic box (3) and have different diameters, a top post (14) that is arranged around the top of the lifting plate (13) and cooperates with the sleeve (15), and a heating wire (16) that is spirally arranged on the outside of the sleeve (15).

3. The ball bearing metallographic specimen mounting structure according to claim 2, characterized in that: The pressing assembly includes a support frame (17) fixed to one side of the metallographic box (3), a pressure plate (21) that is vertically mounted on the bottom of the support frame (17), and a pressure head (22) that is circumferentially mounted on the bottom of the pressure plate (21) and cooperates with the sleeve (15).

4. The ball bearing metallographic specimen mounting structure according to claim 1, characterized in that: The inlay mechanism also includes a ball screw (12) rotatably mounted in the metallographic box (3) and connected to the lifting plate (13), a first bevel tooth (8) sleeved on the bottom of the ball screw (12), a second bevel tooth (9) meshing with the first bevel tooth (8), and a drive motor (11) connected to the second bevel tooth (9).

5. The ball bearing metallographic specimen mounting structure according to claim 2, characterized in that: The inlay mechanism also includes a guide post (4) fixed inside the metallographic box (3), an upper limit block (6) and a lower limit block (5) fixed at intervals on the guide post (4), and a guide hole (23) that passes through the lifting plate (13) and cooperates with the guide post (4). The lifting plate (13) is located between the upper limit block (6) and the lower limit block (5).

6. The ball bearing metallographic specimen mounting structure according to claim 3, characterized in that: The pressing mechanism also includes a guide sleeve (18) embedded in the top of the support frame (17), a guide post (19) fixed to the top of the pressure plate (21) and passing through the guide sleeve (18), and a cylinder (20) fixed to the top of the support frame (17) and connected to the pressure plate (21).

7. The ball bearing metallographic specimen mounting structure according to claim 3, characterized in that: The diameter of the top post (14) is equal to the diameter of the pressure head (22), and the diameter of the top post (14) is equal to the inner diameter of the sleeve (15).

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