Device for measuring precision of reading microscope

Abstract

The utility model relates to a device for measuring the precision of a reading microscope, which belongs to the technical field of measurement and detection, solves the technical problem of lack of a special device for detecting the precision of the reading microscope, and comprises a basic platform, a two-dimensional working table, a rotary working table, a stand column and an arm support, the rotary workbench comprises an outer ring, an inner ring, a gear ring, a lamp strip, a slide glass and an adjusting gear shaft, and the glass linear scale is placed above the rotary workbench; the stand column is vertically and upwards arranged on the foundation platform, and the arm frame is installed on the stand column in a sliding mode and comprises a coarse adjustment part and a fine adjustment part. The device is specially used for detecting the precision of the reading microscope, not only can light rays in a visual field be supplemented, but also the glass linear scale can be moved through the two-dimensional workbench and the rotary workbench, and the height of the reading microscope can be adjusted through the arm support, so that the reading microscope and the glass linear scale can be quickly and accurately focused.

Description

Technical Field

[0001] The utility model belongs to the technical field of measurement and detection, and specifically relates to a device for measuring the accuracy of a reading microscope. Background Art

[0002] The reading microscope is a commonly used optical metrology instrument. It is used for aiming and positioning the reading device in length measuring instruments. It can also be used for length measurements such as line width and spacing. It can also be used for hardness index indentation diameter measurement in the field of mechanics. With the development of the economy and society, the calibration task of the reading microscope is constantly increasing. Under the premise of ensuring the calibration accuracy of the reading microscope, it is urgent to effectively improve the calibration efficiency of the reading microscope.

[0003] According to the operating procedures of the State Administration of Market Supervision: "The calibration device of the reading microscope can be composed of a light section microscope with the measuring arm removed and replaced with an arm of a vertical optical meter (such as Figure 1 As shown). The calibration device can also be composed of other instruments, but it must have a workbench that can move vertically and horizontally and an arm for mounting a reading microscope. "It can be seen that there is no special device for calibrating a reading microscope in the prior art. Utility Model Content

[0004] The main purpose of the utility model is to overcome the deficiencies in the prior art and solve the technical problem of lack of a device specifically used for calibrating the accuracy of a reading microscope. The utility model provides a device for measuring the accuracy of a reading microscope.

[0005] The utility model is realized by the following technical scheme: a device for measuring the accuracy of a reading microscope, comprising a basic platform, a two-dimensional workbench, a rotating workbench, a column and an arm, wherein the two-dimensional workbench comprises a sliding platform that moves in the horizontal plane along the X-axis direction and the Y-axis direction respectively, and the rotating workbench comprises a loading platform that moves in the horizontal plane in the clockwise direction or the counterclockwise direction, wherein:

[0006] The two-dimensional workbench is fixedly arranged above the basic platform, and a knob for driving the corresponding sliding platform to move along the X-axis direction and along the Y-axis direction is coaxially arranged at an eccentric position on the rear side of the two-dimensional workbench. The corresponding knob is rotated to make the sliding platform move along the X-axis direction or along the Y-axis direction respectively. The rotating workbench is arranged above the two-dimensional workbench, and a glass line ruler (a standard measurement object with traceability developed by the national metrology department) is placed above the rotating workbench;

[0007] The rotating worktable comprises an outer ring, an inner ring, a gear ring, a light belt, a slide glass and an adjusting gear shaft. The outer ring is sleeved on the outside of the inner ring, an annular gap is formed between the outer ring and the inner ring, the slide glass cover is arranged on the top of the inner ring, the light belt is fixedly arranged on the inner circumference of the inner ring, and the gear ring is fixedly arranged on the outer circumference of the inner ring; the adjusting gear shaft is arranged in the annular gap, and the adjusting gear shaft is meshed with the gear ring, and the adjusting gear shaft drives the inner ring to rotate clockwise or counterclockwise relative to the outer ring through the gear ring;

[0008] The column is vertically arranged upward on the basic platform, and the column is located at the rear side of the two-dimensional workbench, and the arm is slidably installed on the column; the arm includes a coarse adjustment part and a fine adjustment part, the coarse adjustment part includes a coarse adjustment part body, a coarse adjustment clamping bolt and a fine adjustment screw, a through groove is arranged on the front side wall of the coarse adjustment part body in the vertical direction, sliding grooves are arranged on the inner walls on both sides of the through groove, the fine adjustment screw is arranged across the side walls on both sides of the through groove, and a gear is arranged on the fine adjustment screw in the through groove; a through hole is arranged at the core part of the coarse adjustment part body in the vertical direction, the coarse adjustment part body is slidably installed on the column through the through hole, and a coarse adjustment clamping bolt is arranged perpendicular to the rear side wall of the coarse adjustment part body, and when the coarse adjustment part body slides to a predetermined position along the column, the coarse adjustment clamping bolt is screwed into the coarse adjustment part body and clamps the column;

[0009] The fine adjustment part comprises a fine adjustment part body, a clamping seat and a rack. The fine adjustment part body is arranged in an L shape with an opening direction downward. The rack is fixedly arranged on the rear side wall of the fine adjustment part body. The rack is meshed with a gear arranged on the fine adjustment screw. The gear drives the rack to reciprocate along the slide groove. The fine adjustment screw drives the fine adjustment part body to reciprocate along the vertical direction through the gear rack transmission mechanism.

[0010] The clamping seat is fixedly arranged at the end of the front side of the fine adjustment part body, the retaining ring is detachably mounted on the clamping seat, a positioning hole is arranged through the side wall of the clamping seat, a clamping nut is installed in the positioning hole, and the end of the clamping nut extends to the riding position of the retaining ring and the clamping seat; a plurality of limiting ejectors are evenly distributed through the side wall of the retaining ring, and the limiting ejectors mount the reading microscope lens to be measured downward on the retaining ring.

[0011] Furthermore, a touch switch for controlling the on and off of the light strip and adjusting the brightness is arranged on the basic platform.

[0012] Furthermore, the limiting ejector pin is threadedly connected to the retaining ring.

[0013] The beneficial effects of the utility model are:

[0014] The utility model is a device specially used for calibrating the accuracy of a reading microscope. On the one hand, a glass line scale is moved by a two-dimensional workbench and a rotating workbench, and the height of the reading microscope is adjusted by an arm bracket, so that the reading microscope and the glass line scale can be quickly and accurately focused. On the other hand, a light strip is installed on the rotating workbench to supplement the light in the field of view, so as to facilitate the calibration of the scales corresponding to the reading microscope and the glass line scale. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of a calibration device for a reading microscope in the prior art;

[0016] Figure 2 This is a schematic diagram of the main structure of the utility model;

[0017] Figure 3 It is a schematic diagram of the structure of the rotating workbench from a top view;

[0018] Figure 4 for Figure 3 Schematic diagram of the cross-sectional structure in the AA direction;

[0019] Figure 5 This is a schematic diagram of the boom structure from a top view.

[0020] In the figure, 1 is the basic platform, 2 is the two-dimensional workbench, 3 is the rotating workbench, 3-1 is the outer ring, 3-2 is the inner ring, 3-3 is the gear ring, 3-4 is the light strip, 3-5 is the slide, 3-6 is the adjusting gear shaft, 4 is the glass line ruler, 5 is the column, 6 is the coarse adjustment part, 6-1 is the coarse adjustment part body, 6-2 is the coarse adjustment clamping bolt, 6-3 is the fine adjustment screw, 7 is the fine adjustment part, 7-1 is the fine adjustment part body, 7-2 is the clamping seat, 7-3 is the mounting clamp, 7-4 is the limit ejector pin, 7-5 is the clamping nut, 7-6 is the rack, and 8 is the reading microscope. DETAILED DESCRIPTION

[0021] The utility model is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0022] like Figures 2 to 5 A device for measuring the accuracy of a reading microscope shown in FIG. 1 includes a base platform 1, a two-dimensional workbench 2, a rotating workbench 3, a column 5 and an arm, wherein the two-dimensional workbench 2 includes a sliding platform that moves in the X-axis direction and the Y-axis direction in the horizontal plane, and the rotating workbench 3 includes a loading platform that moves in the clockwise direction or the counterclockwise direction in the horizontal plane, wherein:

[0023] The two-dimensional workbench 2 is fixedly arranged above the base platform 1, the rotating workbench 3 is arranged above the two-dimensional workbench 2, and the glass line ruler 4 is placed above the rotating workbench 3;

[0024] The rotating workbench 3 comprises an outer ring 3-1, an inner ring 3-2, a gear ring 3-3, a light strip 3-4, a slide glass 3-5 and an adjusting gear shaft 3-6. The outer ring 3-1 is sleeved on the outside of the inner ring 3-2, and an annular gap is formed between the outer ring 3-1 and the inner ring 3-2. The slide glass 3-5 is covered on the top of the inner ring 3-2. The light strip 3-4 is fixedly arranged on the inner circumferential surface of the inner ring 3-2, and the gear ring 3-3 is fixedly arranged on the outer circumferential surface of the inner ring 3-2. The adjusting gear shaft 3-6 is arranged in the annular gap, and the adjusting gear shaft 3-6 is meshed with the gear ring 3-3. The adjusting gear shaft 3-6 drives the inner ring 3-2 to rotate clockwise or counterclockwise relative to the outer ring 3-1 through the gear ring 3-3.

[0025] The column 5 is vertically arranged on the basic platform 1, and the column 5 is located on the rear side of the two-dimensional workbench 2, and the arm is slidably installed on the column 5; the arm includes a coarse adjustment part 6 and a fine adjustment part 7, the coarse adjustment part 6 includes a coarse adjustment part body 6-1, a coarse adjustment clamping bolt 6-2 and a fine adjustment screw 6-3, a through groove is arranged on the front side wall of the coarse adjustment part body 6-1 in the vertical direction, and sliding grooves are arranged on the inner walls on both sides of the through groove. The fine adjustment screw 6-3 is arranged across the side walls on both sides of the through groove, and a gear is arranged on the fine adjustment screw 6-3 in the through groove; a through hole is arranged in the center of the coarse adjustment part body 6-1 along the vertical direction, and the coarse adjustment part body 6-1 is slidably installed on the column 5 through the through hole, perpendicular to the coarse adjustment part. A coarse adjustment clamping bolt 6-2 is arranged on the rear side wall of the adjusting part body 6-1. When the coarse adjustment part body 6-1 slides to a predetermined position along the column 5, the coarse adjustment clamping bolt 6-2 is screwed into the coarse adjustment part body 6-1 and clamps the column 5. The fine adjustment part 7 comprises a fine adjustment part body 7-1, a clamping seat 7-2 and a rack 7-6. The fine adjustment part body 7-1 is arranged in an L shape with an opening direction downward. The rack 7-6 is fixedly arranged on the rear side wall of the fine adjustment part body 7-1. The rack 7-6 is meshed with a gear arranged on the fine adjustment screw 6-3. The gear drives the rack 7-6 to reciprocate along the slide groove. The fine adjustment screw 6-3 drives the fine adjustment part body 7-1 to slide back and forth in the vertical direction through the gear rack transmission mechanism.

[0026] The clamping seat 7-2 is fixedly arranged at the end of the front side of the fine adjustment part body 7-1, and the retaining ring 7-3 is detachably installed on the clamping seat 7-2. A positioning hole is set through the side wall of the clamping seat 7-2, and the clamping nut 7-5 is installed in the positioning hole. The end of the clamping nut 7-5 extends to the riding position of the retaining ring 7-3 and the clamping seat 7-2; a plurality of limiting ejectors 7-4 are evenly distributed through the side wall of the retaining ring 7-3, and the limiting ejectors 7-4 mount the lens of the reading microscope 8 to be measured downward on the retaining ring 7-3.

[0027] Furthermore, a touch switch for controlling the on and off of the light strips 3 - 4 and adjusting the brightness is provided on the basic platform 1 .

[0028] Furthermore, the limiting ejector pin 7-4 is threadedly connected to the retaining ring 7-3.

[0029] The operation process of the utility model is:

[0030] First, remove the mounting ring 7-3 from the clamping seat 7-2, place the reading microscope 8 with the lens downward in the mounting ring 7-3, and screw in the limiting ejector pins 7-4 respectively, so that the reading microscope 8 is mounted on the mounting ring 7-3;

[0031] Secondly, reinstall the mounting ring 7-3 with the reading microscope 8 installed on the clamping seat 7-2, and screw in the clamping nut 7-5, so that the reading microscope 8, the mounting ring 7-3 and the clamping seat 7-2 are stably connected;

[0032] Again, the light strip 3-4 is turned on by controlling the touch switch, and the brightness of the light strip 3-4 is adjusted according to the working environment, so that the field of view of the reading microscope 8 is bright;

[0033] Finally, place the glass line ruler on the slide 3-5 of the rotating workbench 3, move the glass line ruler through the two-dimensional workbench 2 and the rotating workbench 3, and at the same time adjust the height of the reading microscope 8 through the coarse adjustment part 6 and the fine adjustment part 7 on the arm to achieve fast and accurate focusing of the reading microscope and the glass line ruler, observe through the eyepiece of the reading microscope to make the image of the glass line ruler clear, and then rotate the micro-motion drum wheel of the reading microscope to drive the marking line to move and compare and measure with the standard scale line on the glass line ruler.

[0034] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any changes or substitutions that can be easily thought of by any technician familiar with the technical field within the technical scope disclosed by the utility model should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A device for measuring the accuracy of a reading microscope, comprising a base platform (1), a two-dimensional worktable (2), a rotating worktable (3), a column (5) and an arm, wherein the two-dimensional worktable (2) comprises a sliding platform that moves in an X-axis direction and a Y-axis direction in a horizontal plane, and the rotating worktable (3) comprises a loading platform that moves in a clockwise direction or a counterclockwise direction in a horizontal plane, characterized in that: The two-dimensional workbench (2) is fixedly arranged above the base platform (1), the rotating workbench (3) is arranged above the two-dimensional workbench (2), and the glass line ruler (4) is placed above the rotating workbench (3); The rotary worktable (3) comprises an outer ring (3-1), an inner ring (3-2), a gear ring (3-3), a light strip (3-4), a slide glass (3-5) and an adjusting gear shaft (3-6); the outer ring (3-1) is sleeved on the outside of the inner ring (3-2); an annular gap is formed between the outer ring (3-1) and the inner ring (3-2); the slide glass (3-5) is covered on the top of the inner ring (3-2); the light strip (3-4) is fixedly arranged on the inner circumferential surface of the inner ring (3-2); the gear ring (3-3) is fixedly arranged on the outer circumferential surface of the inner ring (3-2); the adjusting gear shaft (3-6) is arranged in the annular gap, and the adjusting gear shaft (3-6) is meshed with the gear ring (3-3); the adjusting gear shaft (3-6) drives the inner ring (3-2) to rotate clockwise or counterclockwise relative to the outer ring (3-1) through the gear ring (3-3); The column (5) is vertically arranged on the base platform (1), and the column (5) is located at the rear side of the two-dimensional workbench (2), and the arm is slidably installed on the column (5); the arm comprises a coarse adjustment part (6) and a fine adjustment part (7), the coarse adjustment part (6) comprises a coarse adjustment part body (6-1), a coarse adjustment clamping bolt (6-2) and a fine adjustment screw (6-3), a through groove is arranged on the front side wall of the coarse adjustment part body (6-1) in the vertical direction, and sliding grooves are arranged on the inner walls on both sides opposite to the through groove, and the fine adjustment screw (6-3) crosses A gear is arranged on the side walls on both sides of the through slot, and a fine adjustment screw (6-3) in the through slot; a through hole is arranged in the center of the coarse adjustment part body (6-1) in the vertical direction, and the coarse adjustment part body (6-1) is slidably mounted on the column (5) through the through hole, and a coarse adjustment clamping bolt (6-2) is arranged perpendicular to the rear side wall of the coarse adjustment part body (6-1), and when the coarse adjustment part body (6-1) slides along the column (5) to a predetermined position, the coarse adjustment clamping bolt (6-2) is screwed into the coarse adjustment part body (6-1) and clamps the column (5); The fine-adjusting part (7) comprises a fine-adjusting part body (7-1), a clamping seat (7-2) and a rack (7-6); the fine-adjusting part body (7-1) is arranged in an L-shape with an opening direction facing downward; the rack (7-6) is fixedly arranged on the rear side wall of the fine-adjusting part body (7-1); the rack (7-6) is meshed with a gear arranged on the fine-adjusting screw (6-3); the gear drives the rack (7-6) to reciprocate along the slide groove; and the fine-adjusting screw (6-3) drives the fine-adjusting part body (7-1) to slide reciprocally in the vertical direction through a gear rack transmission mechanism; The clamping seat (7-2) is fixedly arranged at the end of the front side of the fine adjustment part body (7-1); the mounting ring (7-3) is detachably mounted on the clamping seat (7-2); a positioning hole is arranged through the side wall of the clamping seat (7-2); a clamping nut (7-5) is mounted in the positioning hole; and an end of the clamping nut (7-5) extends to the position of the seam between the mounting ring (7-3) and the clamping seat (7-2); a plurality of limiting ejectors (7-4) are evenly distributed through the side wall of the mounting ring (7-3); the limiting ejectors (7-4) mount the lens of the reading microscope (8) to be measured downward on the mounting ring (7-3).

2. A device for measuring the accuracy of a reading microscope according to claim 1, characterized in that: A touch switch for controlling the on and off of the light strips (3-4) and adjusting the brightness is arranged on the basic platform (1).

3. A device for measuring the accuracy of a reading microscope according to claim 1, characterized in that: The limiting ejector pin (7-4) is threadedly connected to the mounting clamp ring (7-3).

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