Auxiliary calibration device for optical instrument

Abstract

The utility model provides an auxiliary calibration device for an optical instrument, which belongs to the technical field of optical instruments and comprises an instrument serving as a main body base of the optical instrument. The installation frame is installed on the rear portion of the upper surface of the instrument, the shaft fixing mechanism comprises a rotating disc and a movement guide rail and is arranged in a bilateral symmetry mode, the two auxiliary supports are installed on the two sides of the rotating disc through the installation mechanism, and the fixing mechanisms are installed on the upper portion and the lower portion of the outer wall of each auxiliary support. Under the cooperative use effect of the fixing mechanism and the adjusting mechanism, the auxiliary calibration device can adapt to the installation effect of standard shaft parts of various sizes and types, the multiple adaptability of the auxiliary calibration device in use is improved, and the situation that when the standard shaft parts are manually installed, excessive friction between the shaft parts and the lower tip is caused due to the fact that the placing force is large is avoided; and the influence caused by excessive abrasion of the standard shaft part is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of optical instruments, in particular to an auxiliary calibration device for optical instruments. Background Art

[0002] The optical shaft measuring instrument is a precision measuring instrument used to measure parameters such as axis, diameter, and roundness. It is usually composed of high-precision optical measuring elements, CNC systems, and display screens. It uses lasers or other light sources to measure the axis and produce accurate output results. Due to its high precision and high reliability, optical shaft measuring instruments are widely used in various fields such as mechanical processing, mechanical manufacturing, and automobile manufacturing to ensure the quality and accuracy of parts. It is a kind of optical instrument. Regular calibration is a necessary process during the use of optical shaft measuring instruments, because this is a guarantee for the accuracy of measurement data. The calibration of general optical shaft measuring instruments is to install standard shaft parts on the instrument for measurement, and compare the measured data with the data of the standard shaft parts themselves. However, when installing standard shaft parts, the standard shaft parts are generally installed directly by hand. During operation, due to force or angle factors, friction or collision with the upper and lower tops on the measuring instrument will occur, which will cause damage to the standard shaft parts, thereby affecting the quality of the standard shaft parts, and also affecting the availability and accuracy of the standard shaft parts during calibration. Utility Model Content

[0003] The utility model aims to provide an auxiliary calibration device for optical instruments, which solves the problem of standard shaft wear caused by manual placement of the standard shaft and reduces the influence caused by excessive wear of standard shaft parts.

[0004] The utility model provides an optical instrument auxiliary calibration device, comprising:

[0005] A fixed axis mechanism, the fixed axis mechanism comprises a rotating disk and a motion guide rail;

[0006] There are two auxiliary brackets, which are symmetrically arranged on both sides of the rotating disk through a mounting mechanism;

[0007] A fixing mechanism is provided on the outer wall of each auxiliary bracket at upper and lower positions.

[0008] As a further optimization solution, instrumentation is included;

[0009] Mounting bracket, which is installed on the rear of the upper surface of the instrument.

[0010] As a further optimization solution, the fixed axis mechanism includes a rotating disk, and the output end of the rotating disk is fixedly connected with a lower center;

[0011] A motion guide rail, wherein an upper center point is fixedly connected to the output end of the motion guide rail, and the upper center point and the lower center point are in the same straight line in the longitudinal direction.

[0012] As a further optimization solution, the mounting mechanism includes two positioning slide blocks, which are respectively fixed to the adjacent sides of the auxiliary bracket; two positioning slide grooves, which are respectively opened on both sides of the rotating disk;

[0013] The positioning slide block is inserted into the interior of the positioning slide groove along with the auxiliary bracket.

[0014] As a further optimization solution, the fixing mechanism includes a sliding mounting frame, and the sliding mounting frame is sleeved on the outer wall of the auxiliary bracket;

[0015] There are two mounting plates, which are respectively fixed to the front and rear side walls of the sliding mounting frame;

[0016] A disbursement rod, one end of which is mounted on the mounting plate correspondingly;

[0017] A clamping frame is fixedly connected to the other end of the dispensing rod.

[0018] As a further optimization solution, an adjusting mechanism is arranged on the outer wall of the auxiliary bracket and connected to the fixing mechanism.

[0019] As a further optimization solution, the adjustment mechanism includes:

[0020] A through-tube, wherein the through-tube is fixedly connected to a mounting plate in the fixing mechanism, and a dispensing rod is inserted into the inside of the through-tube;

[0021] An installation beam, wherein the installation beam is fixedly connected to an end of the expenditure rod where the clamping frame is not installed;

[0022] A spiral tube, the spiral tube passes through the center of the beam and is fixed thereto;

[0023] A screw rod, wherein the screw rod is located inside the spiral tube, and the outer wall of the screw rod is threadedly connected to the inner wall of the spiral tube;

[0024] A bearing, wherein one end surface of the outer wall of the bearing is fixedly connected to the auxiliary bracket, and the outer wall of one end of the screw rod is connected to the inner wall of the bearing.

[0025] As a further optimization solution, a trigger is fixedly connected to the outer wall of the other end of the screw rod, and there are two triggers distributed on the left and right.

[0026] As a further optimization solution, the two sliding installation frames are connected via a linkage rod, and a control rod is fixedly connected to the upper sliding installation frame.

[0027] As a further optimization solution, a limiting mechanism is installed on the top of the control rod, and the limiting mechanism includes:

[0028] A mounting bracket, wherein the mounting bracket is fixedly connected to the control rod;

[0029] A rotating shaft, the rotating shaft is movably mounted on the mounting bracket, and the length of the rotating shaft exposed on the lower surface of the mounting bracket exceeds one half;

[0030] The limiting plate is fixedly connected to the outer wall of the rotating shaft, and a pull rod is fixedly connected to the limiting plate.

[0031] The utility model provides an optical instrument auxiliary calibration device through improvement, which has the following improvements and advantages compared with the prior art:

[0032] Through the special size design of the auxiliary bracket in the installation mechanism, the shaft parts on the auxiliary bracket can be placed in the same plane as the lower center, and the standard shaft parts can be clamped and fixed through the fixing mechanism. The vertical descent of the sliding installation frame in the fixing mechanism can be used for longitudinal docking. Combined with the lateral pushing displacement of the installation mechanism, the standard shaft can be moved to a fixed position. With precise positioning in both the horizontal and vertical directions, a more accurate and stable installation of standard parts is achieved, avoiding excessive friction between the shaft parts and the lower center due to the large placement force when manually installing standard shaft parts, thereby reducing the impact caused by excessive wear of standard shaft parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0034] Figure 1 It is a schematic diagram of the structure of the utility model;

[0035] Figure 2 It is a schematic diagram of the structure of the installation structure of the utility model in coordination with the auxiliary bracket;

[0036] Figure 3 It is a structural schematic diagram of the fixing mechanism and the adjusting mechanism of the utility model;

[0037] Figure 4 For this utility model Figure 3 An enlarged schematic diagram of point A;

[0038] Figure 5 For this utility model Figure 3 An enlarged schematic diagram of point B.

[0039] Description of reference numerals:

[0040] 1-instrument, 2-fixed axis mechanism, 21-rotating disk, 22-lower center, 23-upper center, 24-moving guide rail, 3-mounting frame, 4-control rod, 5-auxiliary bracket, 6-mounting mechanism, 61-positioning slider, 62-positioning slide groove, 7-fixing mechanism, 71-sliding mounting frame, 72-disbursement rod, 73-clamping frame, 74-mounting plate, 8-adjusting mechanism, 81-through pipe, 82-bearing, 83-mounting beam, 84-screw tube, 85-screw, 9-limiting mechanism, 91-mounting bracket, 92-rotating shaft, 93-limiting plate, 94-pull rod, 10-handle, 11-linkage rod. DETAILED DESCRIPTION

[0041] The technical solution of the utility model will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0042] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0043] In the description of the present utility model, it should be understood that the terms "first" and "second" are only used for descriptive purposes, and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, "multiple" means two or more, unless otherwise clearly and specifically defined. In addition, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0044] Example 1

[0045] See also Figure 1-4 , provides an optical instrument auxiliary calibration device, the utility model provides a technical solution: including:

[0046] The axis fixing mechanism 2 is responsible for fixing the axis body to be measured and preparing it for measurement. The axis fixing mechanism 2 includes a rotating disk 21 and a moving guide rail 24. The rotating disk 21 is a pneumatic turntable. The rotation generated during operation can drive the axis parts to rotate to accept measurements at different angles. The rotating disk 21 is arranged on the upper surface of the instrument 1, and the moving guide rail 24 can slide up and down on the mounting frame 3, so as to adapt to the effect of top fixing of axis parts of different lengths;

[0047] Auxiliary bracket 5, the auxiliary bracket 5 is a main body that assists in the calibration of the optical shaft measuring instrument. There are two of them, and they are symmetrically arranged. The symmetrical arrangement can clamp and fix the shaft parts from the left and right sides, and the center between the two can allow the standard shaft parts to be directly above the lower top 22. The two auxiliary brackets 5 are installed on both sides of the rotating disk 21 through the installation mechanism 6. The outer wall of each auxiliary bracket 5 is installed with a fixing mechanism 7 at the upper and lower positions. The fixing mechanism 7 can clamp and fix the shaft standard parts, and the measurement can be carried out after clamping and fixing; Instrument 1, in the patent, the optical instrument is specifically an optical shaft measuring instrument, which is an instrument that uses a CCD measuring device and a grating measuring system to measure the shaft diameter and shaft length. It is a type of optical instrument. When calibrating, it generally uses standard shaft parts for measurement, and then compares the data to adjust and calibrate;

[0048] Mounting frame 3, mounting frame 3 is a mounting carrier for mounting the CDD measuring device and other structures on the instrument 1. The mounting frame 3 is installed at the rear of the upper surface of the instrument 1. The CCD measurement principle is based on the photoelectric effect, that is, the energy of light is converted into electric charge. The CCD sensor is composed of a large number of photosensitive units. When light enters the sensor, the photosensitive unit will generate electric charge. After these charges are amplified and converted, electrical signals related to light intensity can be obtained. By measuring the size of these electrical signals, the intensity of light or other related parameters can be obtained. The CDD measuring device is a conventional device on the optical shaft measuring instrument, which is responsible for measuring the data of shaft parts.

[0049] The axis fixing mechanism 2 comprises a rotating disk 21, and a lower center 22 is fixedly connected to the output end of the rotating disk 21;

[0050] The motion guide rail 24 has an upper center point 23 fixedly connected to its output end. The upper center point 23 and the lower center point 22 are in the same straight line in the longitudinal direction. The upper center point 23 moves with the motion guide rail 24 to press and fix the top of the shaft. The shaft parts are seated on the lower center point 22 for initial placement. The two are in the same straight line to ensure the stability of the installation of the shaft parts.

[0051] The installation mechanism 6 plays the role of temporarily setting the auxiliary bracket 5 to ensure the stability of the placement of the auxiliary bracket 5. The installation mechanism 6 includes two positioning sliders 61, which are respectively fixed to the adjacent sides of the auxiliary bracket 5;

[0052] There are two positioning slots 62, which are respectively opened on both sides of the rotating disk 21;

[0053] The positioning slide block 61 is inserted into the positioning slot 62 along with the auxiliary bracket 5, so that the auxiliary bracket 5 can be installed and positioned by means of the friction force of the positioning slide block 61 inserted into the positioning slot 62. Figure 2 When it is pushed to the end, the auxiliary bracket 5 is located at the half of the rotating disk 21, and the auxiliary bracket 5 and the sharp part of the lower top 22 are in the same horizontal plane, ensuring that the shaft parts can be docked with the lower top 22 with the highest degree of accuracy.

[0054] The fixing mechanism 7 includes a sliding mounting frame 71, which can slide on the auxiliary bracket 5 to ensure the ability to move longitudinally. The sliding mounting frame 71 is sleeved on the outer wall of the auxiliary bracket 5;

[0055] There are two mounting plates 74, which are used to fix the shaft components on both sides. The two mounting plates 74 are respectively fixed to the front and rear side walls of the sliding mounting frame 71;

[0056] A spending rod 72, the length of which is adapted to the distance between the two auxiliary brackets 5 for clamping and fixing the shaft-like parts, and one end of the spending rod 72 is mounted on the mounting plate 74 corresponding thereto;

[0057] The clamping frame 73 is fixed to the other end of the expenditure rod 72, and the clamping frame 73 is in direct contact with the shaft part for clamping and fixing, and reference Figure 4 The middle part of the upper surface of the clamping frame 73 has an obvious inward concave arc, and the shaft parts can be preliminarily clamped and positioned within the arc to ensure that the shaft parts are located in the middle of the clamping frame 73.

[0058] The clamping frame 73 is made of rubber material with a rough surface, which can reduce the possibility of the clamping frame 73 slipping. At the same time, the softer material can also protect standard shaft parts.

[0059] Working principle: First, place the shaft parts between the two auxiliary brackets 5, and the shaft parts are clamped and fixed by the clamping frame 73. At this time, the shaft parts are in a precise vertical state. Then pull up the sliding installation frame 71 and insert the positioning slider 62 into the interior of the positioning slide groove 61 to achieve the connection of the auxiliary bracket 5. According to the above description, it can be known that the axis of the shaft parts can correspond to the lower center point 22. At this time, sliding the sliding installation frame 71 downward can drive the shaft parts to dock with the lower center point 22, and then the upper center point 23 is pressed against the top of the shaft parts to complete the fixation. Next, CDD measurement can be performed on the standard shaft parts, and the data obtained can be compared with the standard shaft parts for calibration.

[0060] Example 2

[0061] Reference Figure 1-4 This embodiment is different from the first embodiment in that it includes an adjustment mechanism 8, which can mainly adapt to the clamping and fixing effect of standard shaft parts of various types and sizes, and is arranged on the outer wall of the auxiliary bracket 5 and connected to the fixing mechanism 7.

[0062] The regulating mechanism 8 comprises:

[0063] The through-tube 81 is fixedly connected to the mounting plate 74 in the fixing mechanism 7, and the dispensing rod 72 is inserted into the through-tube 81. The dispensing rod 72 can go in and out of the through-tube 81, thereby controlling the clamping frame 73 to extend to different lengths and clamp the positions of shafts of different sizes;

[0064] A mounting crossbeam 83 is provided with a screw tube 84, and the mounting crossbeam 83 is fixedly connected to the end of the expenditure rod 72 where the clamping frame 73 is not mounted;

[0065] A screw tube 84, the screw tube 84 passes through the center of the cross beam 83;

[0066] The screw 85 is located inside the screw tube 84, and the outer wall of the screw 85 is threadedly connected to the inner wall of the screw tube 84. The screw 85 can rotate inside the screw tube 84 to achieve the characteristics of movement by the characteristics of the spiral;

[0067] Bearing 82, one end face of the outer wall of the bearing 82 is fixed to the auxiliary bracket 5, and the outer wall of one end of the screw 85 is connected to the inner wall of the bearing 82, so that the screw 85 can only rotate inside the bearing 82, and when the screw 85 moves, due to the characteristics of the thread, the screw tube 84 is displaced, thereby driving the installation beam 83 to move.

[0068] A trigger 10 is fixedly connected to the outer wall of the other end of the screw rod 85 , and there are two triggers 10 distributed on the left and right. The trigger 10 is relatively long and is arranged on both sides to meet the pulling action of the human hand, making it more convenient and labor-saving to operate the screw rod 85 .

[0069] The rest of the structure is the same as that of Example 1.

[0070] Working principle: The standard shaft parts are initially placed between the two clamping frames 73, and the trigger 10 is pulled. The trigger 10 drives the screw 85 to rotate, and the screw tube 84 is displaced, thereby driving the installation beam 83 to move. The installation beam 83 drives the expenditure rod 72 to pass through the inside of the tube 81, and drives the clamping frame 73 to clamp and fix the standard shaft parts according to the size and shape.

[0071] Example 3

[0072] Reference Figure 1-4 , this embodiment is different from the first embodiment in that:

[0073] The two sliding mounting frames 71 are connected by a linkage rod 11, and a control rod 4 is fixedly connected to the upper sliding mounting frame 71. The linkage rod 11 can realize the linkage between the upper and lower sliding mounting frames 71, that is, one of them can drive the other to move, ensuring the synchronization of the movement. The operating rod 4 can control the sliding mounting frame 71 in the up and down directions.

[0074] A limiting mechanism 9 is installed on the top of the control rod 4. The limiting mechanism 9 can more conveniently adjust and fix the state of the control rod 4, that is, it can fix the state of the sliding mounting frame 71 in the up and down directions. The limiting mechanism 9 includes:

[0075] A mounting bracket 91, the mounting bracket 91 is used to load the rotating shaft 92, and the mounting bracket 91 is fixedly connected to the control rod 4;

[0076] The rotating shaft 92 is equipped with a limit plate 93 and can rotate on the mounting bracket 91. The rotating shaft 92 is movably installed on the mounting bracket 91, and the rotating shaft 92 is exposed to more than half of the length of the lower surface of the mounting bracket 91. More than half can make it more convenient to install the limit plate 93; the limit plate 93, when the limit plate 93 contacts with the auxiliary bracket 5, is limited, and the limit plate 93 is fixed by the auxiliary bracket 5. At this time, the operating rod 4 and the sliding mounting frame 71 are in a high position. After pulling the lever 94, the limit plate 93 can be misaligned with the auxiliary bracket 5, so that the limit plate 93 stops being fixed. At this time, the operating rod 4 and the sliding mounting frame 71 are in a low position (that is, the sliding mounting block 71 drives the standard shaft-like parts on the clamping frame 73 to vertically descend and sit on the lower top 22). The limit plate 93 is fixed to the outer wall of the rotating shaft 92, and a pull rod 94 is fixed to the limit plate 93.

[0077] The rest of the structure is the same as that of Example 2.

[0078] Working principle: In the initial state, the limit plate 93 is stuck by the auxiliary bracket 5. At this time, the sliding installation frame 71 and the operating rod 4 are at the top, and the standard shaft parts are not located on the lower top 22. When the limit plate 93 and the auxiliary bracket 5 are misaligned, the limit plate 93 is not blocked, and the sliding installation frame 71 drives the clamping frame 73 to descend, and the whole body descends under the linkage of the linkage rod 11, driving the standard shaft parts to descend vertically at ninety degrees and dock with the lower top 22, and then carry out subsequent work.

[0079] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. An optical instrument auxiliary calibration device, characterized in that: include: A fixed axis mechanism (2), the fixed axis mechanism (2) comprising a rotating disk (21); There are two auxiliary brackets (5) which are symmetrically arranged on both sides of the rotating disk (21). The auxiliary brackets (5) are installed on both sides of the rotating disk (21) through the installation mechanism (6); A fixing mechanism (7), wherein the fixing mechanism (7) is mounted on an outer wall of the auxiliary bracket (5).

2. The optical instrument auxiliary calibration device according to claim 1, characterized in that: The invention comprises an apparatus (1); The mounting frame (3) is mounted on the rear portion of the upper surface of the instrument (1).

3. The optical instrument auxiliary calibration device according to claim 1, characterized in that: The axis fixing mechanism (2) comprises a rotating disk (21), the rotating disk (21) is arranged on the upper surface of the instrument (1), and a lower top (22) is fixedly connected to the output end of the rotating disk (21); A moving guide rail (24) is installed on the outer wall of the mounting frame (3), an upper center point (23) is fixedly connected to the output end of the moving guide rail (24), and the upper center point (23) and the lower center point (22) are on the same straight line in the longitudinal direction.

4. The optical instrument auxiliary calibration device according to claim 1, characterized in that: The two mounting mechanisms (6) include: There are two positioning slide blocks (61), which are respectively fixed to adjacent sides of the auxiliary bracket (5); There are two positioning slots (62), and the positioning slots (62) are respectively opened on both sides of the rotating disk (21); The positioning slide block (61) is inserted into the interior of the positioning slide groove (62) along with the auxiliary bracket (5).

5. The optical instrument auxiliary calibration device according to claim 1, characterized in that: The fixing mechanism (7) comprises: A sliding installation frame (71), wherein the sliding installation frame (71) is sleeved on the outer wall of the auxiliary bracket (5); There are two mounting plates (74), and the two mounting plates (74) are respectively fixed to the front and rear side walls of the sliding mounting frame (71); A disbursement rod (72), one end of which is mounted on the mounting plate (74) in correspondence thereto; A clamping frame (73) is fixedly connected to the other end of the dispensing rod (72).

6. The optical instrument auxiliary calibration device according to claim 1, characterized in that: Also includes: An adjusting mechanism (8) is arranged on the outer wall of the auxiliary bracket (5) and is connected to the fixing mechanism (7).

7. The optical instrument auxiliary calibration device according to claim 1, characterized in that: The regulating mechanism (8) comprises: A through-tube (81), wherein the through-tube (81) is fixedly connected to a mounting plate (74) in the fixing mechanism (7), and the dispensing rod (72) is inserted into the inside of the through-tube (81); An installation beam (83), wherein the installation beam (83) is fixedly connected to an end of the expenditure rod (72) where the clamping frame (73) is not installed; A spiral tube (84), the spiral tube (84) passes through the center of the crossbeam (83) and is fixed thereto; A screw (85), wherein the screw (85) is located inside the spiral tube (84), and the outer wall of the screw (85) is threadedly connected to the inner wall of the spiral tube (84); A bearing (82), wherein one end surface of the outer wall of the bearing (82) is fixedly connected to the auxiliary bracket (5), and the outer wall of one end of the screw rod (85) is connected to the inner wall of the bearing (82).

8. The optical instrument auxiliary calibration device according to claim 7, characterized in that: A trigger (10) is fixedly connected to the outer wall of the other end of the screw rod (85), and there are two triggers (10) distributed on the left and right.

9. The optical instrument auxiliary calibration device according to claim 5, characterized in that: The two sliding installation frames (71) are connected via a linkage rod (11), and a control rod (4) is fixedly connected to the sliding installation frame (71) located at the upper portion.

10. The optical instrument auxiliary calibration device according to claim 9, characterized in that: A limiting mechanism (9) is installed on the top of the control rod (4), and the limiting mechanism (9) comprises: A mounting bracket (91), wherein the mounting bracket (91) is fixedly connected to the control rod (4); A rotating shaft (92), the rotating shaft (92) being movably mounted on the mounting bracket (91), and the length of the rotating shaft (92) exposed on the lower surface of the mounting bracket (91) exceeds one half; The limiting plate (93) is fixedly connected to the outer wall of the rotating shaft (92), and a lever (94) is fixedly connected to the limiting plate (93).

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