A read microscope calibration device

Abstract

The utility model belongs to the technical field of measuring instrument, disclose a kind of reading microscope calibration device. Reading microscope calibration device includes frame body, calibration platform, clamping mechanism and goniometer. The utility model is by standard line scale that bearing and fixed, can be compatible with multiple different specifications standard line scale, to be able to carry out calibration to multiple different specifications reading microscope, the versatility of reading microscope calibration device is significantly improved, and use cost is reduced. The reading microscope calibration device provided by the utility model when standard line scale graduation line and microscope field of view graduation line exist angle deviation, without repeatedly loosening clamping mechanism adjustment microscope posture, but through rotating piece directly adjustment the angle of bearing, make standard line scale graduation line rotate to with microscope graduation line parallel and make the line of both line coincides, to avoid the operation loss caused by needing multiple disassembly and assembly clamping device, fundamentally simplify calibration process, improve operating efficiency.

Description

Technical Field

[0001] This utility model relates to the field of metrology instrument technology, and in particular to a calibration device for a reading microscope. Background Technology

[0002] Reading microscopes, as precision optical metrology instruments, are widely used in metrology laboratories and precision measurement workshops, primarily for checking the accuracy of scale lines on rulers and dials, and for length measurement calibration. They achieve high-precision measurements by magnifying and subdividing the scale divisions, making them a core tool in the field of precision measurement. To ensure the measurement accuracy of reading microscopes, a calibration device is required for verification. Specifically, the calibration device verifies key parameters such as scale alignment and graduation accuracy using standard rulers and other standard instruments. Therefore, the performance of the calibration device directly affects the metrological reliability of the reading microscope.

[0003] Existing reading microscope calibration devices typically consist of a calibration platform, a clamping device, and an XY direction adjustment mechanism. Their working principle is as follows: a standard scribe line is placed in the measuring hole, the reading microscope to be calibrated is fixed above the measuring hole, the microscope position is locked by the clamping device, the relative position of the standard scribe line and the microscope is adjusted by the XY direction adjustment device, and finally the alignment of the scribe lines is observed through the eyepiece of the microscope to complete the calibration.

[0004] However, existing reading microscope calibration devices are not standardized in terms of the model, shape and size of the standard line scales. Specific measuring holes of a specific size are required for different models of standard line scales. As a result, a single reading microscope calibration device can only be adapted to a limited number of standard line scales. Multiple reading microscope calibration devices are required to meet diverse needs, resulting in low versatility and high cost.

[0005] Therefore, the above problems urgently need to be solved. Utility Model Content

[0006] The purpose of this invention is to provide a reading microscope calibration device that is compatible with various standard line scales of different specifications, thereby enabling the calibration of reading microscopes of various specifications, significantly improving the versatility of the reading microscope calibration device, and reducing the cost of use.

[0007] To achieve this objective, the present invention adopts the following technical solution:

[0008] A reading microscope calibration device, the reading microscope calibration device comprising:

[0009] Frame;

[0010] A calibration platform is mounted on the frame. The calibration platform includes a support component and a rotating component. The support component is used to support and fix a standard line ruler, and the rotating component is used to adjust the position of the support component around the vertical direction.

[0011] A clamping mechanism is provided on the frame. The clamping mechanism includes a clamping component and an adjusting component. The clamping component is configured to clamp and fix the reading microscope and position the reading microscope directly above the support member so that the scale of the standard line ruler can be observed through the eyepiece of the reading microscope. The adjusting component is used to adjust the position of the clamping component in the horizontal direction.

[0012] An angle meter can be placed on the reading microscope to detect the levelness of the reading microscope.

[0013] Preferably, the clamping assembly is further configured such that, when clamping the reading microscope, there is a clearance space between the reading microscope and the standard line scale carried by the carrier, so as to avoid interference between the reading microscope and the standard line scale.

[0014] Preferably, the clamping assembly includes two grippers that can move in a horizontal direction, and the two grippers can move relative to or away from each other.

[0015] Preferably, the adjustment assembly includes a slide for driving the movement of the two grippers. The slide includes two moving parts that move in a horizontal direction. The two grippers are divided into two groups, and the two grippers are connected to the two moving parts in a one-to-one correspondence.

[0016] Preferably, the adjustment assembly further includes a height adjustment member for adjusting the height of the slide.

[0017] Preferably, the frame includes a base, a column, and a connecting assembly. The column is mounted on the base via the connecting assembly, the calibration platform is mounted on the base, and the clamping mechanism is mounted on the column.

[0018] The connection includes a connecting flange, a plurality of first bolts, and a plurality of second bolts. The connecting flange is screwed onto the base by the plurality of first bolts. One end of the column is clearance-fitted with the connecting flange. The plurality of second bolts can be screwed onto and pass through the connecting flange to abut against the column.

[0019] Preferably, the calibration platform further includes a light-emitting element for illuminating the standard line ruler carried by the carrier.

[0020] Preferably, the support member includes a light-transmitting plate for supporting the standard line ruler;

[0021] The light-emitting element is located below the light-transmitting plate, and the light-emitting element can emit light upwards to illuminate the standard line ruler carried by the light-transmitting plate.

[0022] Preferably, the carrier further includes a flexible clamping member that can abut against the upper surface of the standard line ruler.

[0023] Preferably, the rotating component is a fine-tuning turntable.

[0024] The beneficial effects of this utility model are:

[0025] 1. This utility model supports and fixes the standard line ruler through a carrier component, which is compatible with a variety of standard line rulers of different specifications. This enables the calibration of reading microscopes of various specifications, significantly improving the versatility of the reading microscope calibration device and reducing the cost of use.

[0026] 2. Traditional reading microscope calibration devices rely on measuring holes of specific sizes, limiting their compatibility with standard scales of a limited range. Once the microscope is fixed, if there is an angular deviation between the standard scale's graduations and the microscope's graduations, the clamping device must be repeatedly loosened and the microscope's orientation manually adjusted until the graduations align. This process is complex, time-consuming, and impacts calibration efficiency. However, the reading microscope calibration device provided by this invention eliminates the need for repeated clamping adjustments when there is an angular deviation between the standard scale's graduations and the microscope's field-of-view graduations. Instead, it directly adjusts the angle of the carrier component via a rotating element, causing the standard scale's graduations to rotate parallel to the microscope's graduations. This avoids the operational wear and tear caused by repeated disassembly and reassembly of the clamping device, fundamentally simplifying the calibration process and improving operational efficiency.

[0027] 3. The clamping mechanism's adjustment components support horizontal position adjustment, allowing it to be quickly aligned with the top of the carrier without changing the fixed state of the reading microscope, making operation easier. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the reading microscope calibration device provided by this utility model;

[0029] Figure 2 This is a schematic diagram of the clamping mechanism provided by this utility model;

[0030] Figure 3 This is a structural schematic diagram of the frame and calibration platform provided by this utility model.

[0031] In the picture:

[0032] 1. Frame; 11. Base; 12. Upright; 13. Connecting components; 131. Connecting flange;

[0033] 2. Calibration platform; 21. Supporting component; 211. Light-transmitting plate; 212. Clamping component; 22. Rotating component; 23. Light-emitting component;

[0034] 3. Clamping mechanism; 31. Gripper; 32. Slide table; 321. Moving part; 33. Height adjustment component. Detailed Implementation

[0035] Before explaining any implementation of this application in detail, it should be understood that this application is not limited to its application to the structural details and component arrangements set forth in the following description or shown in the above drawings.

[0036] In this application, the terms "comprising," "including," "having," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0037] In this application, the term "and / or" describes a relationship between related objects, indicating that three relationships can exist. For example, a centrifugal vortex magnetic pump and / or a centrifugal vortex magnetic pump can represent: the existence of only one centrifugal vortex magnetic pump, the simultaneous existence of one centrifugal vortex magnetic pump and a centrifugal vortex magnetic pump, or the existence of only one centrifugal vortex magnetic pump. Additionally, the character " / " in this application generally indicates that the preceding and following related objects have an "and / or" relationship.

[0038] In this application, the terms "connection," "combination," "coupling," and "installation" can refer to direct connection, combination, coupling, or installation, or indirect connection, combination, coupling, or installation. For example, a direct connection refers to two parts or components being connected together without the need for an intermediary, while an indirect connection refers to two parts or components each being connected to at least one intermediary, with the connection achieved through the intermediary. Furthermore, "connection" and "coupling" are not limited to physical or mechanical connections or couplings, but can also include electrical connections or couplings.

[0039] In this application, those skilled in the art will understand that relative terms (e.g., “about,” “approximately,” “basically,” etc.) used in conjunction with quantities or conditions are to include the values ​​and have the meaning indicated by the context. For example, such relative terms include at least the degree of error associated with the measurement of a particular value, tolerances associated with the particular value due to manufacturing, assembly, use, etc. Such terms should also be considered as disclosing a range defined by the absolute values ​​of the two endpoints. Relative terms may refer to a certain percentage (e.g., 1%, 5%, 10% or more) of the indicated value. Numerical values ​​that do not use relative terms should also be disclosed as specific values ​​with tolerances. Furthermore, “basically” when expressing relative angular relationships (e.g., substantially parallel, substantially perpendicular) may refer to a certain degree (e.g., 1 degree, 5 degrees, 10 degrees or more) added to or subtracted from the indicated angle.

[0040] In this application, those skilled in the art will understand that the function performed by a component can be performed by one component, multiple components, one part, or multiple parts. Similarly, the function performed by a part can also be performed by one part, one component, or a combination of multiple parts.

[0041] In this application, the directional terms "upper," "lower," "left," "right," "front," and "rear" are used to describe the orientation and positional relationships shown in the accompanying drawings and should not be construed as limiting the embodiments of this application. Furthermore, in the context, it should be understood that when an element is mentioned as being connected "upper" or "lower" to another element, it can be directly connected to the other element "upper" or "lower," or indirectly connected through an intermediate element. It should also be understood that directional terms such as upper side, lower side, left side, right side, front side, and rear side not only represent positive orientation but can also be understood as lateral orientation. For example, "below" can include directly below, lower left, lower right, lower front, and lower rear.

[0042] Please see Figures 1 to 3 This embodiment provides a reading microscope calibration device, which includes a frame 1, a calibration platform 2, a clamping mechanism 3, and an angle meter. The calibration platform 2 is mounted on the frame 1 and includes a support member 21 and a rotating member 22. The support member 21 supports and fixes a standard line scale, and the rotating member 22 adjusts the position of the support member 21 in the vertical direction. The clamping mechanism 3 is mounted on the frame 1 and includes a clamping component and an adjusting component. The clamping component is configured to clamp and fix the reading microscope, positioning it directly above the support member 21 so that the scale of the standard line scale can be observed through the eyepiece of the reading microscope. The adjusting component adjusts the horizontal position of the clamping component. The angle meter can be placed on the reading microscope to detect its levelness.

[0043] During calibration, first place the standard line scale on the support 21 of the calibration platform 2, which secures it for stability. Then, after the reading microscope is fixed by the clamping assembly, position it directly above the support 21. Place the angle meter on the support 21 and record the reading. Then place it on the reading microscope and record the angle meter reading. Adjust accordingly based on the reading deviation. Next, observe the scale of the standard line scale through the eyepiece of the reading microscope. Then, drive the support 21 to rotate vertically using the rotating component 22 to adjust the angle of the standard line scale. Alternatively, move the reading microscope horizontally or vertically using the adjustment assembly until the lines of the reading microscope align with the lines of the standard line scale. Finally, place the angle meter on the reading microscope again and observe if the angle meter reading is consistent with the previous reading. If they are consistent, the calibration is complete. If they are inconsistent, repeat the above adjustment steps until the angle meter readings are consistent before and after adjustment.

[0044] Understandably, by using the carrier 21 to support and fix the standard linear scale, it is compatible with various standard linear scales of different specifications, thus enabling the calibration of various reading microscopes of different specifications. This significantly improves the versatility of the reading microscope calibration device and reduces the cost of use. Specifically, by using the carrier 21, which has no fixed measuring hole, to support and fix the standard linear scale, the limitation of needing to open specific holes due to different models and sizes of standard linear scales is avoided. The carrier 21 only needs to limit the position of the standard linear scale, rather than constraining its shape by fixing the hole diameter. Therefore, it is compatible with standard linear scales of different specifications, and there is no need to equip multiple sets of reading microscope calibration devices for different standard linear scales.

[0045] It is also understandable that traditional reading microscope calibration devices rely on measuring holes of specific sizes, which means they can only accommodate standard line scales of a limited range. Once the reading microscope is fixed, if there is an angular deviation between the standard line scale's graduations and the microscope's graduations, the clamping device must be repeatedly loosened and the microscope's posture manually adjusted until the graduations are aligned. This process is complex, time-consuming, and affects calibration efficiency. However, the reading microscope calibration device provided in this embodiment eliminates the need to repeatedly loosen the clamping mechanism 3 to adjust the microscope's posture when there is an angular deviation between the standard line scale's graduations and the microscope's field-of-view graduations. Instead, the angle of the carrier component 21 is directly adjusted via the rotating component 22, causing the standard line scale's graduations to rotate parallel to the microscope's graduations. This avoids the operational wear and tear caused by repeatedly disassembling and reassembling the clamping device, fundamentally simplifying the calibration process and improving operational efficiency.

[0046] In addition, the adjustment components of the clamping mechanism 3 support horizontal position adjustment, which can quickly align the reading microscope directly above the carrier 21 by translation without changing the fixed state of the reading microscope, making it easier to operate.

[0047] It should be noted that when adjusting the parallelism of a reading microscope, relying solely on visual judgment of deviations or error angles will affect the calibration results. Therefore, by placing an angle gauge directly on the reading microscope and monitoring its levelness in real time, the microscope's tilt can be accurately located. It should be noted that the angle gauge is existing technology, and specific models can be selected based on the actual application scenario; therefore, details will not be provided.

[0048] Correspondingly, the clamping assembly is also configured to provide clearance between the reading microscope and the standard linear scale carried by the carrier 21 when clamping the reading microscope, so as to avoid interference between the reading microscope and the standard linear scale. It is understood that the clearance can reduce the possibility of physical contact or positional interference between the standard linear scale and the reading microscope clamped by the clamping assembly when the carrier 21 rotates.

[0049] To further enhance the applicability of the reading microscope calibration device, the clamping assembly includes two grippers 31 capable of moving horizontally, and these grippers 31 can move relative to or away from each other. In practical applications, reading microscopes of different specifications vary in size, especially in dimensions such as width or diameter. Therefore, the relative horizontal movement of the grippers 31 allows for adaptive adjustment based on the actual width or diameter of the reading microscope. For example, for a narrower reading microscope, the grippers 31 can move closer together to precisely hold the microscope, while for a wider reading microscope, the grippers 31 can move away from each other to open, providing sufficient space to accommodate and hold the microscope, thus adapting to various sizes of reading microscopes.

[0050] Preferably, the adjustment assembly includes a slide 32 for driving the movement of the two grippers 31. The slide 32 includes two moving parts 321 that move in the horizontal direction. The two grippers 31 are divided into two groups, and the two grippers 31 are connected to the two moving parts 321 in a one-to-one correspondence. It can be understood that by driving the two grippers 31 through the two moving parts 321 of the slide 32, the two grippers 31 can be ensured to move synchronously. This allows the grippers 31 to move evenly and symmetrically closer to or further away from the reading microscope when holding reading microscopes of different specifications. This enables precise adjustment of the clamping force and position on the reading microscope, ensuring that the reading microscope is stably fixed directly above the support 21, thereby improving the accuracy and reliability of calibration.

[0051] It should be noted that the slide stage 32 is existing technology, and this embodiment does not make any improvements to its specific structure, so it will not be described in detail. In this embodiment, the gripper 31 is preferably made of aluminum alloy. According to the specifications of reading microscopes commonly used in practical applications, the design dimensions of a single gripper 31 are: thickness between 20mm and 22mm, length 70mm, and width 25mm. The two grippers 31 are arranged in a split obtuse angle structure, with the obtuse angle set between 150° and 170°. This angle design can form a large contact area with the surface of the reading microscope during clamping, thereby providing a stable clamping force. To further enhance the clamping effect, a gasket is installed on the inner side of each gripper 31. The gasket is made of a material with high hardness and good wear resistance, with a thickness of approximately 1.5mm. Preferably, it is a rubber gasket. The rubber gasket not only increases friction to prevent the reading microscope from sliding, but also avoids direct contact between the gripper 31 and the surface of the reading microscope, thus preventing wear. Preferably, the gripper 31 is screwed to the moving part 321 with an internal hex screw to form a stable connection structure, which effectively enhances the firmness of the gripper 31 installation and ensures that it will not loosen during clamping and calibration.

[0052] It should also be noted that in this embodiment, the rotating component 22 is a fine-tuning turntable. This turntable employs a high-precision worm gear drive, precision bearings, or air bearings, enabling highly accurate angle adjustments and positioning precision, making it more suitable for calibration work on reading microscopes. Furthermore, the fine-tuning turntable is existing technology, and this embodiment does not make any improvements to it; therefore, it will not be described in detail. Alternatively, a fine-tuning turntable with XY-axis adjustment capabilities can be used to further enhance the versatility of the reading microscope calibration device.

[0053] Generally, different models of reading microscopes differ not only in length and width but also in overall height, focal length, and other parameters. Therefore, the adjustment assembly also includes a height adjustment component 33, which adjusts the height of the slide stage 32. This allows the same reading microscope calibration device to be compatible with a wider range of reading microscopes, further enhancing its versatility. It should be noted that the height adjustment component can employ any existing structure with height adjustment functionality, such as a combination of a lead screw and nut pair with a stepper motor, or a combination of an electric push rod and a micro-adjustment knob.

[0054] Specifically, the frame 1 includes a base 11, a column 12, and a connecting assembly 13. The column 12 is mounted on the base 11 via the connecting assembly 13. The calibration platform 2 is mounted on the base 11, and the clamping mechanism 3 is mounted on the column 12. The connection includes a connecting flange 131, multiple first bolts, and multiple second bolts. The connecting flange 131 is screwed onto the base 11 by the multiple first bolts. One end of the column 12 is clearance-fitted with the connecting flange 131. The multiple second bolts can be screwed onto and pass through the connecting flange 131 to abut against the column 12.

[0055] With this configuration, the connecting flange 131 is screwed onto the base 11 via multiple first bolts, making installation between the connecting flange 131 and the base 11 convenient; simply tightening the first bolts is sufficient for fixation. Simultaneously, the multiple first bolts ensure the stability of the connection between the connecting flange 131 and the base 11 and allow for relatively accurate positioning of the connecting flange 131, providing a precise reference for the subsequent installation of the column 12. Furthermore, the clearance fit between one end of the column 12 and the connecting flange 131 facilitates the installation of the column 12, allowing it to be easily placed into the connecting flange 131. Moreover, the clearance fit allows for some fine-tuning of the column 12, enabling operators to align and adjust its position to adjust the levelness of the reading microscope held by the clamping mechanism 3.

[0056] In this embodiment, four second bolts are provided, all of which are hexagon socket head cap screws. A groove is pre-drilled at the corresponding position on the column 12, and four threaded holes are pre-drilled on the connecting flange 131. When installing the column 12, two of the second bolts engage with the grooves on the column 12, while the other two push against the column 12 to achieve a fine-tuning function.

[0057] To enable operators to read values ​​more accurately and improve calibration precision, the calibration platform 2 also includes a light-emitting element 23, which illuminates the standard line scale carried by the carrier 21. In this embodiment, the carrier 21 includes a light-transmitting plate 211 for carrying the standard line scale. The light-emitting element 23 is located below the light-transmitting plate 211 and can emit light upwards to illuminate the standard line scale carried by the light-transmitting plate 211.

[0058] Understandably, the light-emitting element 23, positioned below the light-transmitting plate 211, emits light upwards. The light is evenly scattered through the light-transmitting plate 211, providing relatively uniform illumination to the standard scale and avoiding excessively strong or weak local lighting, thus improving reading accuracy. More importantly, the downward light transmission method minimizes shadows cast by the scale lines on the standard scale under illumination, especially for finer scale markings, making them clearer and reducing interference from shadows on scale reading, further enhancing calibration accuracy. It should be noted that the light-emitting element 23 can be selected from existing LED illumination lamps or other lighting fixtures, preferably those with brightness adjustment functions to adjust brightness as needed; further details will not be elaborated upon here.

[0059] To further enhance the versatility of the reading microscope calibration device, the support 21 also includes a flexible clamping member 212, which abuts against the upper surface of the standard line scale. It is understood that the flexible clamping member 212 can adaptively adjust to changes in the thickness, width, and other dimensions of the standard line scale, ensuring stable clamping regardless of whether the standard line scale is thick or thin, thus improving the compatibility and versatility of the support 21 for standard line scales of different specifications. In this embodiment, two clamping members 212 are provided to abut against both ends of the standard line scale respectively, thereby improving the reliability of fixing the standard line scale.

[0060] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A read microscope calibration device, characterized in that, The reading microscope calibration device includes: Frame (1); A calibration platform (2) is set on the frame (1). The calibration platform (2) includes a support member (21) and a rotating member (22). The support member (21) is used to support and fix the standard line ruler. The rotating member (22) is used to adjust the position of the support member (21) around the vertical direction. A clamping mechanism (3) is disposed on the frame (1). The clamping mechanism (3) includes a clamping component and an adjusting component. The clamping component is configured to clamp and fix the reading microscope and position the reading microscope directly above the support (21) so that the scale of the standard line ruler can be observed through the eyepiece of the reading microscope. The adjusting component is used to adjust the position of the clamping component in the horizontal direction. An angle meter can be placed on the reading microscope to detect the levelness of the reading microscope.

2. A reading microscope calibration device according to claim 1, characterized in that The clamping assembly is also configured to provide clearance between the reading microscope and the standard line scale carried by the carrier (21) when clamping the reading microscope, so as to avoid interference between the reading microscope and the standard line scale.

3. A reading microscope calibration device according to claim 1, characterized in that The clamping assembly includes two grippers (31) capable of moving in a horizontal direction, and the two grippers (31) are capable of moving relative to or away from each other.

4. A reading microscope calibration device according to claim 3, characterized in that The adjustment assembly includes a slide (32) for driving the movement of the two grippers (31). The slide (32) includes two moving parts (321) that move in the horizontal direction. The two grippers (31) are divided into two groups, and the two grippers (31) are connected to the two moving parts (321) in a one-to-one correspondence.

5. A reading microscope calibration device according to claim 4, characterized in that The adjustment assembly also includes a height adjustment member (33) for adjusting the height of the slide (32).

6. A reading microscope calibration device according to claim 1, characterized in that The frame (1) includes a base (11), a column (12) and a connecting component (13). The column (12) is mounted on the base (11) via the connecting component (13). The calibration platform (2) is mounted on the base (11). The clamping mechanism (3) is mounted on the column (12). The connection includes a connecting flange (131), a plurality of first bolts and a plurality of second bolts. The connecting flange (131) is screwed onto the base (11) by the plurality of first bolts. One end of the column (12) is clearance-fitted with the connecting flange (131). The plurality of second bolts can be screwed onto and pass through the connecting flange (131) to abut against the column (12).

7. A reading microscope calibration device according to claim 1, characterized in that The calibration platform (2) also includes a light-emitting element (23) for illuminating the standard line ruler carried by the carrier (21).

8. A reading microscope calibration device according to claim 7, characterized in that The support member (21) includes a light-transmitting plate (211) for supporting the standard line ruler; The light-emitting element (23) is located below the light-transmitting plate (211), and the light-emitting element (23) can emit light upward to illuminate the standard line ruler carried by the light-transmitting plate (211).

9. A reading microscope calibration device according to claim 8, characterized in that The carrier (21) further comprises a clamping element (212) which is elastically deformable and is able to abut against the upper surface of the standard linear scale.

10. A reading microscope calibration device according to claim 1, characterized in that The rotating element (22) is a fine adjustment rotary table.

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