CN216791126U

CN216791126U - Novel laser aiming device for autocollimator

Info

Publication number: CN216791126U
Application number: CN202220559478.8U
Authority: CN
Inventors: 穆江; 潘泽宇; 赵继男; 朱向伟; 曲达
Original assignee: Harbin Yongchuang Measurement And Testing Co ltd
Current assignee: Harbin Yongchuang Measurement And Testing Co ltd
Priority date: 2022-03-15
Filing date: 2022-03-15
Publication date: 2022-06-21
Anticipated expiration: 2032-03-15

Abstract

The utility model discloses a novel laser aiming device used on an autocollimator, which relates to the technical field of autocollimators and comprises a laser aiming device, an autocollimator light pipe, a rotary table and a regular polygon prism, wherein the bottom of the laser aiming device is provided with a base, a laser aiming mechanism is integrally formed inside the laser aiming device, and an optical axis concentric adjustment locking mechanism is arranged between the laser aiming device and the base. Light finding visualization is realized.

Description

Novel laser aiming device for autocollimator

Technical Field

The utility model relates to the technical field of autocollimators, in particular to a novel laser aiming device for an autocollimator.

Background

The autocollimator is a precision measuring instrument widely applied to high-precision aiming and small-angle measurement; the method is widely applied to the fields of angle measurement, flatness measurement of a flat plate, straightness measurement of a guide rail, angle shaking measurement of a shaft system and the like; the principle of the autocollimator is that parallel light emitted by a light pipe is reflected by a plane mirror of a measured object, reflected light returns along the original path of a parallel light path to have zero imaging angle on a CCD when no angle deviation is ideal, when the plane mirror has small angle deviation, the position where the reflected light is imaged on the CCD and the ideal position have pixel movement, and the angle difference is converted according to the size of a pixel, so that the measurement of a high-precision micro angle can be obtained; by means of the auxiliary optical element, the flatness, straightness, verticality and the like can be measured in an extending mode, and if the reflecting surface (mirror) deflects the optical axis of the autocollimator slightly, aiming marks (cross lines or light spots) reflected from the reflecting surface deviate from the field of view of the autocollimator and cannot be measured; the higher the precision, the more limited the field range of view of the autocollimator, and the more difficult the image finding problem, at present, when using the traditional autocollimator to measure the angle error, the visual aiming mode is adopted for aiming, because of insufficient use experience of workers or the autocollimator is generally far away from a polygon (more than 1 meter), the manual visual aiming of the reflecting surface is difficult, and the reflecting surface can be aimed usually in more than 20 minutes or even longer time.

With the rapid development of manufacturing industries such as aviation, aerospace, shipbuilding and the like, large-diameter turntables are widely applied, the conventional calibration method of the large-diameter turntables adopts an autocollimator to be matched with a regular polygon for calibration, the distance between standard instrument equipment and a measured workbench exceeds one meter, the light finding is very difficult during calibration, a large amount of time is wasted in the light finding during each calibration, time and labor are wasted, the working efficiency is low, particularly, when the conventional autocollimator is used for calibrating the large-size numerical control machine tool and the turntable of a machining center, a standard cannot approach or be far away from a calibration rotating workbench, and the calibration work is difficult or cannot be realized at all along with the increase of the measured diameter and distance.

Therefore, there is a need to provide a novel laser aiming device for autocollimator to solve the above technical problems.

SUMMERY OF THE UTILITY MODEL

The utility model provides a novel laser aiming device for an autocollimator, which solves the technical problems of short distance and dim light when the autocollimator is used for measuring by adopting the traditional method.

In order to solve the technical problems, the novel laser aiming device for the autocollimator comprises a laser aiming device, an autocollimator light pipe, a rotary table and a regular polygon prism, wherein the regular polygon prism is arranged at the top of the rotary table, a base is arranged at the bottom of the laser aiming device, a laser aiming mechanism is integrally formed inside the laser aiming device, an optical axis concentric adjustment locking mechanism is arranged between the laser aiming device and the base, the laser aiming mechanism is arranged on the base through the optical axis concentric adjustment locking mechanism, a positioning mechanism is arranged inside the optical axis concentric adjustment locking mechanism and comprises an adjustment jackscrew and a fastening ring, and the adjustment jackscrew is in threaded connection with the fastening ring.

Preferably, the laser sight is mounted in the autocollimator light pipe, and by mounting the laser sight in the autocollimator light pipe, the laser sight stability is ensured and protected by the autocollimator light pipe.

Preferably, be equipped with the clearance between adjustment jackscrew and the laser sighting mechanism, through be equipped with the clearance between adjustment jackscrew and laser sighting mechanism, make it carry out the micro-displacement in four directions about upper and lower, left and right, the adjustment jackscrew is the external screw thread structure, and the lock ring is the internal thread structure.

Preferably, the bottom of base is provided with a plurality of landing legs, through setting up a plurality of landing legs to make the lower surface of base can keep the clearance, the position of the base of being convenient for simultaneously removes, and has certain height and is favorable to calibrating large-scale diameter revolving stage or long-distance calibration swivel work head.

Preferably, a reinforcing rod is arranged between every two adjacent supporting legs, and stability between the base and the supporting legs is improved by the aid of the reinforcing rods.

Preferably, laser sight's one end integrated into one piece has the power supply line, through setting up the power supply line, conveniently to laser sight power supply to effective increase of service distance.

Compared with the related art, the novel laser aiming device for the autocollimator has the following beneficial effects:

1. in the utility model, when the device is used for the first time, the laser sighting device is arranged on the light tube of the autocollimator, the power switch of the device is turned on, and the adjusting jackscrew is adjusted on the optical axis concentric adjusting and locking mechanism, so that the optical axis of the laser and the optical axis emitted by the light source of the autocollimator are coincided and locked, and the adjustment is not needed in later use, thereby solving the problems that the distance between the field standard device and the measured equipment cannot be close to the measured equipment is long, the light finding of a large-scale measuring equipment working platform is difficult to find or the light cannot be found at all, and realizing the visualization of the light finding.

2. According to the utility model, the laser sighting device is connected with the base through the optical axis concentric adjustment locking mechanism, a stable mechanical structure and a high-precision laser emitter are adopted, the calibration precision can be improved by one order of magnitude, and the problems of short measurement distance and dim light caused by the adoption of an autocollimator in the traditional method are solved; the intensity of labour who has alleviateed the examination personnel has improved work efficiency, and this utility model simple structure, economy, convenient to use select for use when adjusting measurement light when being applicable to calibration such as large-scale lathe, instrument and equipment, rotator, accurate angle and aim at, can use at equipment manufacturing such as aviation, aerospace, car, steamer and civilian science and technology institute, institute or enterprise.

Drawings

Fig. 1 is a schematic top view of a novel laser sighting device for an autocollimator;

FIG. 2 is a schematic side view of a novel laser sighting device for use in an autocollimator;

FIG. 3 is a schematic structural diagram of a turntable of a novel laser sighting device used for an autocollimator;

fig. 4 is a schematic structural diagram of an adjusting jackscrew in a novel laser aiming device used for an autocollimator.

Reference numbers in the figures: 1. a laser sight; 2. an optical axis concentric adjustment locking mechanism; 3. a laser aiming mechanism; 4. a base; 5. an autocollimator light pipe; 6. adjusting a jackscrew; 7. a fastening ring; 8. a turntable; 9. a regular polygonal prism.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention. In the description of the present invention, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. are referred to, they refer to the orientation or positional relationship shown in the drawings, and are used for convenience of description and simplicity of description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first" and "second" may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise. In the description of the present invention, it should be noted that the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected unless otherwise explicitly stated or limited. Either mechanically or electrically. Either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Embodiment one, given by fig. 1 to 4, a novel laser sighting device for an autocollimator includes a laser sight 1, an autocollimator light pipe 5, a turntable 8 and a regular polygonal prism 9, the regular polygonal prism 9 is disposed on the top of the turntable 8, a base 4 is disposed at the bottom of the laser sight 1, a laser sighting mechanism 3 is integrally formed inside the laser sight 1, an optical axis concentric adjustment locking mechanism 2 is disposed between the laser sight 1 and the base 4, the laser sighting mechanism 3 is disposed on the base 4 through the optical axis concentric adjustment locking mechanism 2, a positioning mechanism is disposed inside the optical axis concentric adjustment locking mechanism 2, the positioning mechanism includes an adjustment jackscrew 6 and a tightening ring 7, the adjustment jackscrew 6 is in threaded connection with the tightening ring 7, the laser sight 1 is mounted in the autocollimator light pipe 5, by mounting the laser sight 1 in the autocollimator light pipe 5, the stability of the laser sighting device 1 is ensured, and the laser sighting device 1 is protected through the autocollimator light tube 5, a gap is arranged between the adjusting jackscrew 6 and the laser sighting mechanism 3, the gap is arranged between the adjusting jackscrew 6 and the laser sighting mechanism 3, so that the adjusting jackscrew can move slightly in four directions, namely up, down, left and right, the adjusting jackscrew 6 is of an external thread structure, the fastening ring 7 is of an internal thread structure, when the adjusting of the adjusting jackscrew 6 is completed, the fastening ring 7 can be used for fastening the adjusting jackscrew, the sealing can be carried out on the adjusting jackscrew for preventing natural looseness, the accuracy of the adjusting jackscrew is influenced by misoperation of personnel, and a protective sleeve layer can be additionally arranged.

Second embodiment, on first embodiment's basis, the bottom of base 4 is provided with a plurality of landing legs, through setting up a plurality of landing legs to make the lower surface of base 4 keep the clearance, the position of the base 4 of being convenient for simultaneously removes, and has a take the altitude and be favorable to calibrating large-scale diameter revolving stage or long distance calibration swivel work head, all is provided with the anchor strut between two adjacent landing legs, through setting up the anchor strut, has increased the stability between base 4 and the landing leg.

In the third embodiment, on the basis of the first embodiment, a power supply line is integrally formed at one end of the laser sight 1, and the power supply line is arranged, so that the power supply for the laser sight 1 is facilitated, and the service distance is effectively prolonged.

The working principle is as follows:

when the device is used for the first time, the laser sighting device 1 is installed on an autocollimator light pipe 5, a power switch of the device is turned on, an adjusting jackscrew 6 is adjusted on an optical axis concentric adjusting and locking mechanism 2, so that a laser optical axis is overlapped with and locked by an optical axis emitted by an autocollimator light source, adjustment is not needed in later use, and the laser sighting device 1 is connected with a base 4 through the optical axis concentric adjusting and locking mechanism 2; the problems that the distance between the field standard device and the measured equipment can not be close to the measured equipment is long, and the light finding of a large-scale measuring equipment workbench is difficult to be found within 1 meter or the light can not be found at all are solved, and the light finding visualization is realized; the problems of short distance and dim light when an autocollimator is used for measuring by adopting the traditional method are solved; the intensity of labour who has alleviateed examination personnel has improved work efficiency, and this utility model simple structure, economy, convenient to use select for use when adjusting measurement light when being applicable to calibrations such as large-scale lathe, instrument and equipment, rotator, accurate angle and aim for use, can use at equipment manufacturing such as aviation, aerospace, car, steamer and civilian science and technology research institute, or enterprise.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A novel laser aiming device for an autocollimator comprises a laser aiming device (1), an autocollimator light pipe (5), a rotary table (8) and a regular polygonal prism (9), wherein the regular polygonal prism (9) is arranged at the top of the rotary table (8), it is characterized in that the bottom of the laser sighting device (1) is provided with a base (4), the laser sighting device (1) is internally and integrally provided with a laser sighting mechanism (3), an optical axis concentric adjustment locking mechanism (2) is arranged between the laser sighting device (1) and the base (4), the laser aiming mechanism (3) is arranged on the base (4) through the optical axis concentric adjustment locking mechanism (2), the inside of the concentric adjustment locking mechanism (2) of optical axis is provided with a positioning mechanism, the positioning mechanism comprises an adjustment jackscrew (6) and a fastening ring (7), and the adjustment jackscrew (6) is in threaded connection with the fastening ring (7).

2. A novel laser sight for use on autocollimators according to claim 1, characterized in that the laser sight (1) is mounted in an autocollimator light pipe (5).

3. The novel laser aiming device for the autocollimator of claim 1, which is characterized in that a gap is provided between the adjusting jackscrew (6) and the laser aiming mechanism (3).

4. A novel laser sighting device for autocollimator according to claim 1, characterised in that the base (4) is provided with legs at its bottom.

5. The novel laser aiming device for the autocollimator of claim 4, wherein a reinforcing rod is arranged between two adjacent legs.

6. A novel laser sight for use on autocollimators according to claim 1, characterized in that the laser sight (1) has a power supply line integrally formed at one end.