Metallographic microscope sample positioning mechanism

Abstract

The utility model discloses a metallographic microscope sample positioning mechanism, which relates to the technical field of microscopes and comprises a microscope arm, an objective table and an objective lens converter are fixedly mounted on the microscope arm, the objective lens converter is arranged right above the objective table, and a tablet pressing component and a datum plate are arranged at the upper end of the objective table; and the pressing piece assembly comprises a guide insertion rod and a bearing plate, the guide insertion rod is annularly arranged on the outer side of the pressing piece and movably inserted into the objective table, a rotating shaft is rotationally connected to the middle of the guide insertion rod, and the pressing piece is fixedly installed above the rotating shaft. According to the scheme, the outer side of the reference plate can be simultaneously positioned, the positioning is accurate, the positioning operation efficiency is high, and the positioning effect of the microscope sample is further improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to microscope observation technical field, concretely is a metallographic microscope sample positioning mechanism. BACKGROUND

[0002] When observing a specimen or object with a microscope, the position of the specimen on the stage is adjusted in the left-right, front-back and up-down directions to enable a particular area of the specimen to be viewed in the field of view with an appropriate degree of clarity.

[0003] When using a metallographic microscope to observe a sample, a tablet presser is usually used to position the sample, and the sample is pressed between the tablet presser and the stage plate by its own gravity. However, the self-gravity is relatively light, resulting in a relatively small pressure, which cannot firmly and stably press the sample between the tablet presser and the stage plate, and the sample position is easily deviated due to external forces and other external factors, and the sample positioning effect needs to be improved. The Chinese patent with publication number CN222354131U can position the sample, but it needs single positioning, which is slow in operation efficiency and affects the use efficiency of the microscope. Therefore, we propose a metallographic microscope sample positioning device. SUMMARY

[0004] The utility model aims at providing a metallographic microscope sample positioning mechanism to solve the problem of the existing position positioning mechanism used when observing a sample with a metallographic microscope, which needs single positioning, is slow in operation efficiency, and affects the use efficiency of the microscope.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a metallographic microscope sample positioning mechanism, comprising a mirror arm, a stage and an objective lens converter are fixedly installed on the mirror arm, the objective lens converter is arranged directly above the stage, and a tablet pressing assembly and a reference plate are arranged at the upper end of the stage.

[0006] The tablet pressing assembly comprises a guide plug rod and a bearing plate, the guide plug rod is annularly arranged outside the tablet pressing, the guide plug rod is movably inserted on the object table, a rotating shaft is rotatably connected to the middle part of the guide plug rod, a tablet is fixedly installed above the rotating shaft, a pressing head is movably inserted on the side away from the rotating shaft of the tablet, a return spring is sleeved on the pressing head, the return spring is arranged above the tablet, a gear one is fixedly installed on the lower end of the rotating shaft, a driving gear ring is meshingly connected to the outer side of the gear one, the driving gear ring is rotatably connected to the bearing plate, a motor two is fixedly installed on the lower part of the bearing plate through a Z-shaped seat, a gear two is fixedly installed on the output shaft of the motor two, the gear two is meshed with the driving gear ring, a motor one is fixedly installed on the lower middle part of the object table, a transmission screw rod is arranged on the output shaft of the motor one, and the transmission screw rod is threadedly connected with the bearing plate.

[0007] Preferably, the pressing head is arranged above the object table, and the number of the pressing head and the guide plug rod is equal.

[0008] Preferably, the gear one and the gear two are arranged on the inner side of the driving gear ring, and the center lines of the gear one, the gear two and the driving gear ring are parallel to each other.

[0009] Preferably, the length of the rotating shaft is greater than the length of the guide plug rod, and the rotating shaft and the guide plug rod are collinear.

[0010] Preferably, the upper end and the lower end of the return spring are fixedly welded to the pressing head and the tablet respectively.

[0011] Preferably, the tablet is arranged horizontally, and the length of the tablet is greater than the distance between the guide plug rod and the reference plate.

[0012] Preferably, the reference plate is arranged directly below the objective converter.

[0013] Compared with the prior art, the tablet pressing assembly has the following beneficial effects:

[0014] 1. The metallographic microscope sample positioning mechanism, the guide plug rod is annularly arranged outside the reference plate, a rotating shaft is rotatably connected to the middle part of the guide plug rod, after the motor one is started, the transmission screw rod can be rotated, the bearing plate can move downward along the center line direction of the guide plug rod through the guiding effect of the guide plug rod after the transmission screw rod is rotated, the effect of limiting the position of the microscope sample and accurately positioning the microscope sample can be achieved.

[0015] 2、 the metallographic microscope sample positioning mechanism, after starting motor two, can make gear two rotate, when gear two and drive gear ring mesh, gear two rotates, can make drive gear ring rotate, and because of the meshing effect of drive gear ring and gear one, drive gear ring rotates, can make gear one rotate, and then drive rotating shaft to rotate, through rotating shaft rotation, can simultaneously make the tablet swing a certain angle to one side, can select whether the tablet is above the reference plate according to the need, facilitate the placement and positioning of the microscope sample. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is the structure schematic diagram of the utility model;

[0017] Figure 2 It is the objective table structure schematic diagram of the utility model;

[0018] Figure 3 It is the objective table half cut structure schematic diagram of the utility model;

[0019] Figure 4 It is the Figure 2 The enlarged schematic diagram of M of the utility model;

[0020] Figure 5 It is the tablet assembly partial structure schematic diagram of the utility model.

[0021] In the drawing: 1, mirror arm; 2, objective table; 3, objective lens converter; 4, bearing plate; 41, Z-shaped seat; 42, motor two; 43, gear two; 44, reference plate; 5, drive gear ring; 6, gear one; 7, rotating shaft; 8, tablet assembly; 81, guide insertion rod; 82, pressing head; 83, return spring; 84, tablet; 9, motor one; 91, transmission screw rod. DETAILED DESCRIPTION

[0022] The technical scheme in the embodiments of the utility model will be described clearly and completely in conjunction with the drawings in the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without making creative efforts belong to the scope of protection of the utility model.

[0023] Embodiment: please refer to Figures 1-5 The utility model provides a technical scheme: a metallographic microscope sample positioning mechanism, including mirror arm 1, mirror arm 1 is fixedly installed with objective table 2 and objective lens converter 3, objective lens converter 3 is located in the just above objective table 2, the upper end of objective table 2 is provided with tablet assembly 8 and reference plate 44;Reference plate 44 is located in the just below objective lens converter 3.

[0024] Please refer toFigures 1-3 Wherein, the tabletting assembly 8 comprises a guide plug 81 and a bearing plate 4, the guide plug 81 is annularly arranged outside the tablet 84, and the guide plug 81 is movably inserted on the object table 2, by making the guide plug 81 produce upward or downward movement, the sample can be pressed and loosened.

[0025] Further, the middle part of the guide plug 81 is rotatably connected with a rotating shaft 7, the length of the rotating shaft 7 is greater than the length of the guide plug 81, and the rotating shaft 7 and the guide plug 81 are collinear. The tablet 84 is fixedly installed above the rotating shaft 7, the pressure head 82 movably inserted on the side away from the rotating shaft 7, the pressure head 82 is arranged above the object table 2, and the number of the pressure head 82 and the guide plug 81 is equal. After the rotating shaft 7 is driven by external force and rotates, the rotating rotating shaft 7 can drive the tablet 84 to rotate to one side at a certain angle at the same time, thereby facilitating the placement of the microscope sample.

[0026] Further, the reset spring 83 is sleeved above the pressure head 82, the reset spring 83 is arranged above the tablet 84, the tablet 84 is horizontally arranged, and the length of the tablet 84 is greater than the distance between the guide plug 81 and the reference plate 44. The upper end and the lower end of the reset spring 83 are fixedly welded on the pressure head 82 and the tablet 84 respectively. Through the setting of the reset spring 83, when the tabletting assembly 8 is positioned on the microscope sample, the reset spring 83 can make the positioning process not damage the microscope sample through the elastic action of the reset spring 83, thereby further ensuring the quality of the microscope sample.

[0027] Please refer to Figure 2 And Figure 4 The gear one 6 is fixedly installed at the lower end of the rotating shaft 7, the adjacent gear one 6 is meshingly connected with the driving gear ring 5, the driving gear ring 5 is rotatably connected on the bearing plate 4, the motor two 42 is fixedly installed below the bearing plate 4 through the Z-shaped seat 41, and the motor two 42 is connected with the control switch through wires. The gear two 43 is fixedly installed on the output shaft of the motor two 42, the gear two 43 is meshed with the driving gear ring 5, the gear one 6 and the gear two 43 are arranged on the inner side of the driving gear ring 5, and the center lines of the gear one 6, the gear two 43 and the driving gear ring 5 are parallel to each other. After the motor two 42 is turned on, the gear two 43 can rotate, when the gear two 43 and the driving gear ring 5 are meshed, the rotation of the gear two 43 can drive the driving gear ring 5 to rotate. Due to the meshing action of the driving gear ring 5 and the gear one 6, the rotation of the driving gear ring 5 can drive the gear one 6 to rotate, thereby driving the rotating shaft 7 to rotate, and the rotation of the rotating shaft 7 can drive the tablet 84 to rotate to one side at a certain angle at the same time, thereby facilitating the placement of the microscope sample.

[0028] In the embodiment, the motor one 9 is fixedly installed in the middle of the stage 2, the motor one 9 is connected with the control switch through wires, the transmission screw rod 91 is arranged on the output shaft of the motor one 9, and the transmission screw rod 91 is connected with the bearing plate 4 through threads.

[0029] Working principle: the metallographic microscope sample positioning mechanism, before use, the tablet 84 is not placed on the upper side of the reference plate 44, at this time, it is more convenient to place the microscope sample; when positioning the microscope sample, the motor two 42 is started, the gear two 43 is rotated, when the gear two 43 and the driving gear ring 5 are engaged, the gear two 43 is rotated, the driving gear ring 5 is rotated, the gear one 6 is rotated due to the engagement of the driving gear ring 5 and the gear one 6, the rotating shaft 7 is rotated, the tablet 84 is swung by a certain angle to one side through the rotation of the rotating shaft 7; the motor one 9 is started, the transmission screw rod 91 is rotated, the bearing plate 4 is moved along the center line direction of the guide plug rod 81 from up to down through the guiding effect of the guide plug rod 81, the position of the microscope sample is limited, and the effect of accurate positioning of the microscope sample is achieved.

[0030] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A metallographic microscope specimen positioning mechanism, comprising a mirror arm (1), a stage (2) and an objective converter (3) are fixedly installed on the mirror arm (1), characterized in that: The objective converter (3) is arranged above the objective table (2), and the upper end of the objective table (2) is provided with a tablet pressing assembly (8) and a reference plate (44); The tablet pressing assembly (8) comprises a guide inserting rod (81) and a bearing plate (4), the guide inserting rod (81) is arranged outside the tablet (84) in a ring shape, and the guide inserting rod (81) is movably inserted on the objective table (2), the middle part of the guide inserting rod (81) is rotatably connected with a rotating shaft (7), the upper part of the rotating shaft (7) is fixedly installed with the tablet (84), the side, away from the rotating shaft (7), of the tablet (84) is movably inserted with a pressing head (82), the upper part of the pressing head (82) is sleeved with a return spring (83), the return spring (83) is arranged above the tablet (84), the lower end of the rotating shaft (7) is fixedly installed with a gear one (6), the outer side of the gear one (6) is meshingly connected with a driving gear ring (5), the driving gear ring (5) is rotatably connected on the bearing plate (4), the lower part of the bearing plate (4) is fixedly installed with a motor two (42) through a Z-shaped seat (41), the output shaft of the motor two (42) is fixedly installed with a gear two (43), the gear two (43) is meshed with the driving gear ring (5), the lower middle part of the objective table (2) is fixedly installed with a motor one (9), the output shaft of the motor one (9) is provided with a transmission screw rod (91), and the transmission screw rod (91) is threadedly connected with the bearing plate (4).

2. A metallurgical microscope specimen positioning mechanism according to claim 1, wherein: The pressing head (82) is arranged above the objective table (2), and the number of the pressing head (82) is equal to that of the guide inserting rod (81).

3. A metallurgical microscope specimen positioning mechanism according to claim 1 wherein: The gear one (6) and the gear two (43) are arranged inside the driving gear ring (5), and the center lines of the gear one (6), the gear two (43) and the driving gear ring (5) are parallel to each other.

4. A metallurgical microscope specimen positioning mechanism according to claim 1 wherein: The length of the rotating shaft (7) is greater than that of the guide inserting rod (81), and the center lines of the rotating shaft (7) and the guide inserting rod (81) are collinear.

5. A metallurgical microscope specimen positioning mechanism according to claim 1 wherein: The upper end and the lower end of the return spring (83) are fixedly welded on the pressing head (82) and the tablet (84) respectively.

6. A metallurgical microscope specimen positioning mechanism according to claim 1 wherein: The tablet (84) is arranged horizontally, and the length of the tablet (84) is greater than the distance between the guide inserting rod (81) and the reference plate (44).

7. A metallurgical microscope specimen positioning mechanism according to claim 1 wherein: The reference plate (44) is arranged directly below the objective converter (3).

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