阅读说明：本技术 一种可调位置的光路折转方法及其光路折转装置 (Position-adjustable light path deflection method and light path deflection device thereof ) 是由 任梦晴 王飞 王晓卿 柯四十 郭志 吴昊 于 2019-10-22 设计创作，主要内容包括：本发明公开了一种可调位置的光路折转方法及其光路折转装置,光路折转方法是由基于上光筒结构、多齿分度台、丝杆、下光筒结构组成的光路折转装置实现的,丝杠安装在多齿分度台的下面,上光筒安装在多齿分度台上,下光筒安装在丝杠的外螺纹上,在上光筒、下光筒中均安装有直角五棱镜用于转折光路,在多齿分度台与丝杠的中间均设有用于光路传输的通光孔,安装时校准两者的通光孔同轴。光路折转方法具有通过多齿分度台和丝杠来实现光路的位置调节来达到光电测量系统的光路折转的目的、提高调整精度、简化调整过程、操作方便易实现、适应不同平台等优点。光路折转装置提高了光路折转的角度精度,增强了系统的适应性和可靠性。(The invention discloses a position-adjustable light path turning method and a light path turning device thereof, wherein the light path turning method is realized by the light path turning device which consists of an upper light cylinder structure, a multi-tooth dividing table, a lead screw and a lower light cylinder structure, the lead screw is arranged below the multi-tooth dividing table, the upper light cylinder is arranged on the multi-tooth dividing table, the lower light cylinder is arranged on an external thread of the lead screw, right-angle pentaprisms are arranged in the upper light cylinder and the lower light cylinder for turning light paths, light through holes for light path transmission are arranged between the multi-tooth dividing table and the lead screw, and the light through holes for aligning the upper light cylinder and the lower light cylinder are coaxial during installation. The light path folding method has the advantages that the light path folding purpose of the photoelectric measurement system is achieved by adjusting the position of the light path through the multi-tooth dividing table and the lead screw, the adjustment precision is improved, the adjustment process is simplified, the operation is convenient and easy to achieve, different platforms are adapted, and the like. The light path deflection device improves the angle precision of light path deflection and enhances the adaptability and reliability of the system.)

1. A position-adjustable light path deflection method is characterized in that: the method comprises the following specific steps:

A. installing an upper right-angle pentaprism with the angle deviation not greater than 10 'in an upper light tube through an upper pentaprism installation seat, and installing a lower right-angle pentaprism with the angle deviation not greater than 10' in the upper light tube through a lower pentaprism installation seat, so as to ensure that the parallelism of the reflecting surface of the upper right-angle pentaprism, the axis of an inner hole of the upper light tube, the reflecting surface of the lower right-angle pentaprism and the axis of the inner hole of the lower light tube is not greater than 0.01 mm;

B. the lead screw is arranged below the multi-tooth dividing table, a dial indicator is used, a gauge head contacts an inner hole of the lead screw, the rotation center of the multi-tooth dividing table is used as a reference, and the coaxiality of the calibrated lead screw and the multi-tooth dividing table is not more than 0.008 mm;

C. installing an upper polishing barrel on a multi-tooth indexing table, installing a lower polishing barrel below a lead screw, using a dial indicator, enabling a gauge outfit to contact an inner hole of the upper polishing barrel, and calibrating the coaxiality of the upper polishing barrel and the multi-tooth indexing table to be not more than 0.01mm by taking the rotation center of the multi-tooth indexing table as a reference; using a lever dial indicator, taking the rotation center of the multi-tooth dividing table as a reference, and calibrating the coaxiality of the lower polishing cylinder and the multi-tooth dividing table to be not more than 0.01 mm;

D. and installing a light path deflection device according to the position of the measured object and the position of the photoelectric measurement system, so that the upper light cylinder is positioned near the photoelectric measurement system, the reflecting surface of the upper right-angle pentaprism in the upper light cylinder is opposite to the light receiving device and the light emitting device of the photoelectric measurement system, adjusting the height of the screw rod, so that the lower light cylinder is positioned near the measured object, rotating the multi-tooth indexing table until the reflecting surface of the lower right-angle pentaprism in the lower light cylinder is opposite to the measured surface of the measured object, completing the light path position adjustment, namely starting to measure by using the photoelectric measurement system.

2. The method of claim 1, wherein: the number of teeth of the multi-tooth indexing table is not less than 720, end face centripetal rigid straight teeth are adopted, surface hardening and rust prevention treatment are carried out on the straight teeth, and alloy structural steel is adopted.

3. The utility model provides an adjustable position's light path deflection device which characterized in that: by go up optical cylinder structure, multiple tooth dividing table, lead screw, down optical cylinder structure and constitute, wherein: the upper light cylinder structure consists of an upper pentaprism mounting seat, an upper right-angle pentaprism and an upper light cylinder, the lower light cylinder structure consists of a lower light cylinder, a lower pentaprism mounting seat and a lower right-angle pentaprism, a dividing table light through hole which is communicated up and down is arranged in the middle of the multi-tooth dividing table, a screw rod light through hole which is communicated up and down is arranged in the middle of the screw rod, and the dividing table light through hole and the screw rod light through hole are coaxial; an upper right-angle pentaprism installed through an upper pentaprism installation seat is arranged in the upper light cylinder, and a lower right-angle pentaprism installed through a lower pentaprism installation seat is arranged in the lower light cylinder; the lead screw is in a trapezoidal thread structure, the internal thread rotates, the external thread goes up and down, the lead screw is fixed below the multi-tooth indexing table with the tooth number not less than 720 through a screw, and the upper polishing barrel is fixed above the multi-tooth indexing table through a screw, so that a polishing barrel light outlet of the upper polishing barrel is communicated with a light through hole of the indexing table of the multi-tooth indexing table; mounting the lower light cylinder on the outer screw of the screw rod to enable the light outlet hole of the lower light cylinder to be communicated with the light through hole of the screw rod; the parallelism of the reflecting surface of the upper right-angle pentaprism, the axis of the upper light cylinder hole and the reflecting surface of the lower right-angle pentaprism and the axis of the lower light cylinder is not more than 0.01 mm.

4. The adjustable position optical path folding apparatus according to claim 1, wherein: the angle deviation of the upper right-angle pentaprism and the lower right-angle pentaprism is not more than 10'.

Technical Field

The invention relates to a photoelectric measurement system, in particular to a position-adjustable light path deflection method and a light path deflection device thereof.

Background

In vehicle-mounted and ship-based photoelectric measurement systems, the height and angle of a mounting platform of a photoelectric measurement device are different from those of a measured object, so that the photoelectric measurement system cannot directly perform photoelectric measurement. In the traditional method, a deflection light pipe is used for adjusting the relative height and the relative angle between a photoelectric measurement equipment platform and a measured object, so that light path deflection is realized, the light ray reference of the photoelectric measurement equipment can be transmitted to the measured surface of the measured object, and the photoelectric measurement is completed. The method has the problems that the time and the labor are consumed in the adjusting process, the adjusting precision is not easy to control, and the same folding light pipe cannot be used universally due to different conditions of photoelectric measuring systems of different platforms, so that the folding and the rotating of the light path have a space to be improved.

In order to solve the problems of the conventional method, a position-adjustable light path deflection method is needed to improve the adjustment precision, simplify the adjustment process and adapt to photoelectric measurement systems of different platforms.

Disclosure of Invention

The first purpose of the invention is to provide a light path folding method which achieves the purpose of folding the light path of the photoelectric measurement system by adjusting the position of the light path through a multi-tooth dividing table and a lead screw, improves the adjustment precision, simplifies the adjustment process, is convenient to operate and easy to implement, and is suitable for different platforms.

A second object of the present invention is to provide an adjustable optical path folding device.

The first object of the present invention is achieved by:

a light path deflection method with adjustable position is characterized in that: the method comprises the following specific steps:

A. installing an upper right-angle pentaprism with the angle deviation not greater than 10 'in an upper light tube through an upper pentaprism installation seat, and installing a lower right-angle pentaprism with the angle deviation not greater than 10' in the upper light tube through a lower pentaprism installation seat, so as to ensure that the parallelism of the reflecting surface of the upper right-angle pentaprism, the axis of an inner hole of the upper light tube, the reflecting surface of the lower right-angle pentaprism and the axis of the inner hole of the lower light tube is not greater than 0.01 mm;

B. the lead screw is arranged below the multi-tooth dividing table, a dial indicator is used, a gauge head contacts an inner hole of the lead screw, the rotation center of the multi-tooth dividing table is used as a reference, and the coaxiality of the calibrated lead screw and the multi-tooth dividing table is not more than 0.008 mm;

C. installing the upper polishing barrel on the multi-tooth dividing table 2, installing the lower polishing barrel below the screw rod, using a dial indicator, contacting a gauge outfit with an inner hole of the upper polishing barrel, and calibrating the coaxiality of the upper polishing barrel and the multi-tooth dividing table to be not more than 0.01mm by taking the rotation center of the multi-tooth dividing table as a reference; using a lever dial indicator, taking the rotation center of the multi-tooth dividing table as a reference, and calibrating the coaxiality of the lower polishing cylinder and the multi-tooth dividing table to be not more than 0.01 mm;

D. and installing a light path deflection device according to the position of the measured object and the position of the photoelectric measurement system, so that the upper light cylinder is positioned near the photoelectric measurement system, the reflecting surface of the upper right-angle pentaprism in the upper light cylinder is opposite to the light receiving device and the light emitting device of the photoelectric measurement system, adjusting the height of the screw rod, so that the lower light cylinder is positioned near the measured object, rotating the multi-tooth indexing table until the reflecting surface of the lower right-angle pentaprism in the lower light cylinder is opposite to the measured surface of the measured object, completing the light path position adjustment, namely starting to measure by using the photoelectric measurement system.

The number of teeth of the multi-tooth indexing table is not less than 720, end face centripetal rigid straight teeth are adopted, surface hardening and rust prevention treatment are carried out on the straight teeth, and alloy structural steel is adopted.

The second object of the invention is achieved by:

a light path deflection device with adjustable position is characterized in that: by go up optical cylinder structure, multiple tooth dividing table, lead screw, down optical cylinder structure and constitute, wherein: the upper light cylinder structure consists of an upper pentaprism mounting seat, an upper right-angle pentaprism and an upper light cylinder, the lower light cylinder structure consists of a lower light cylinder, a lower pentaprism mounting seat and a lower right-angle pentaprism, a dividing table light through hole which is communicated up and down is arranged in the middle of the multi-tooth dividing table, a screw rod light through hole which is communicated up and down is arranged in the middle of the screw rod, and the dividing table light through hole and the screw rod light through hole are coaxial; an upper right-angle pentaprism installed through an upper pentaprism installation seat is arranged in the upper light cylinder, and a lower right-angle pentaprism installed through a lower pentaprism installation seat is arranged in the lower light cylinder; the lead screw is in a trapezoidal thread structure, the internal thread rotates, the external thread goes up and down, the lead screw is fixed below the multi-tooth indexing table with the tooth number not less than 720 through a screw, and the upper polishing barrel is fixed above the multi-tooth indexing table through a screw, so that a polishing barrel light outlet of the upper polishing barrel is communicated with a light through hole of the indexing table of the multi-tooth indexing table; mounting the lower light cylinder on the outer screw of the screw rod to enable the light outlet hole of the lower light cylinder to be communicated with the light through hole of the screw rod; the parallelism of the reflecting surface of the upper right-angle pentaprism, the axis of the upper light cylinder hole and the reflecting surface of the lower right-angle pentaprism and the axis of the lower light cylinder is not more than 0.01 mm.

The angle deviation of the upper right-angle pentaprism and the lower right-angle pentaprism is not more than 10'.

The light path folding method is realized by a light path folding device consisting of a top light cylinder structure, a multi-tooth dividing table, a screw rod and a bottom light cylinder structure, wherein the screw rod is arranged below the multi-tooth dividing table, the top light cylinder is arranged on the multi-tooth dividing table, the bottom light cylinder is arranged on an external thread of the screw rod, right-angle pentaprisms for folding light paths are arranged in the top light cylinder and the bottom light cylinder, light through holes for light path transmission are arranged between the multi-tooth dividing table and the screw rod, the light through holes for calibrating the top light cylinder and the bottom light cylinder are coaxial during installation, and light cavities are formed by a light outlet hole of the top light cylinder, a light through hole of the dividing table, a light through hole of the screw rod and a light outlet hole; the multi-tooth indexing table provides high-precision angle deflection for the light path, the number of teeth is not less than 720, the lead screw adopts a trapezoidal thread structure, the internal thread rotates, and the external thread goes up and down. According to the optical path folding and converting method, the height adjustment of the optical path is realized through the lifting of the lead screw, the high-precision optical path folding and converting at different angles is realized through the multi-tooth dividing table, the problem of optical path angle position deflection can be solved through the multi-tooth dividing table, and the problem of optical path height position deflection can be solved through the lead screw. The light path turning method has the advantages that the light path position adjustment is realized through the multi-tooth dividing table and the lead screw, so that the purpose of turning the light path of the photoelectric measurement system is achieved, the adjustment precision is improved, the adjustment process is simplified, the operation is convenient and easy to realize, the method is suitable for different platforms, and the like.

The light path turning device of the invention uses the multi-tooth dividing table and the lead screw, can quickly and conveniently adjust the angle position and the height position of the upper light cylinder and the lower light cylinder, and has better adaptability; the upper right-angle pentaprism and the lower right-angle pentaprism are used for light path turning transmission, so that the angle precision is better than that of a 45-degree plane mirror, the error of a light path turning system is reduced, the measurement precision of a photoelectric measurement system is improved, the operation is convenient and easy to realize, and the operability is strong; the adjustment of the position of the light path is realized through the multi-tooth indexing table and the lead screw, the turning of the light path is realized through the two right-angle pentaprisms, the problems that light path equipment needs to be installed again at different positions in the turning of the light path and the plane mirror refraction light path needs to be installed at 45 degrees are solved, the trouble and the unreliability of multiple installation and adjustment are avoided, the angle precision of the turning of the light path is improved, and the adaptability and the reliability of the system are enhanced.

Drawings

FIG. 1 is a schematic view of the structure of the present invention

In fig. 1: 1. a glazing cylinder structure; 101. an upper pentaprism mounting base; 102. an upper right-angle pentaprism; 103. a polishing barrel; 104. a light outlet of the glazing cylinder; 2. a multi-tooth indexing table; 201. a light hole of the dividing table; 3. a lead screw; 301. a lead screw light through hole; 4. a lower light cylinder structure; 401. a light emitting tube; 402. a lower pentaprism mounting base; 403. a lower right-angle pentaprism; 404. the lower light cylinder is provided with a light outlet.

The specific implementation mode is as follows:

the present invention will be described in further detail with reference to the following examples and drawings.

A position-adjustable light path turning method comprises the following specific steps:

A. an upper right-angle pentaprism 102 with the angle deviation not greater than 10 'is installed in the upper light cylinder 103 through an upper pentaprism installation seat 101, a lower right-angle pentaprism 403 with the angle deviation not greater than 10' is installed in the upper light cylinder 401 through a lower pentaprism installation seat 402, and the parallelism of the reflecting surface of the upper right-angle pentaprism 102, the axis of the hole of the upper light cylinder 103, the reflecting surface of the lower right-angle pentaprism 403 and the axis of the lower light cylinder 401 is not greater than 0.01 mm;

B. installing a lead screw 3 below a multi-tooth dividing table 2, using a dial indicator, enabling a gauge head to contact an inner hole of the lead screw 3, and calibrating the coaxiality of the lead screw 3 and the multi-tooth dividing table 2 to be not more than 0.008mm by taking the rotation center of the multi-tooth dividing table 2 as a reference;

C. installing the upper polishing barrel 103 on the multi-tooth indexing table 2, installing the lower polishing barrel 401 below the screw rod 3, using a dial indicator, contacting a gauge outfit with an inner hole of the upper polishing barrel 103, and calibrating the coaxiality of the upper polishing barrel 103 and the multi-tooth indexing table 2 to be not more than 0.01mm by taking the rotation center of the multi-tooth indexing table 2 as a reference; using a dial indicator, and calibrating the coaxiality of the lower light cylinder 401 and the multi-tooth indexing table 2 to be not more than 0.01mm by taking the rotation center of the multi-tooth indexing table 2 as a reference in the inner hole of the gauge head lower light cylinder 401;

D. according to the position of the measured object and the position of the photoelectric measuring system, an optical path deflection device is installed, so that an upper light cylinder 103 is positioned near the photoelectric measuring system, the reflecting surface of an upper right-angle pentaprism 102 in the upper light cylinder 103 is opposite to a light receiving device and a light emitting device of the photoelectric measuring system, the height of a screw rod 3 is adjusted, so that a lower light cylinder 401 is positioned near the measured object, a multi-tooth indexing table 2 is rotated until the reflecting surface of a lower right-angle pentaprism 402 in the lower light cylinder 401 is opposite to the measured surface of the measured object, the optical path position adjustment is completed, and the measurement can be started by using the photoelectric measuring system.

The utility model provides an optical path of adjustable position turns over device, by last light cylinder structure 1, multiple tooth dividing table 2, lead screw 3, down light cylinder structure 4 constitutes, wherein: the upper light cylinder structure 1 consists of an upper pentaprism mounting seat 101, an upper right-angle pentaprism 102 and an upper light cylinder 103, the lower light cylinder structure 4 consists of a lower light cylinder 401, a lower pentaprism mounting seat 402 and a lower right-angle pentaprism 403, a vertical through indexing table light through hole 201 is arranged in the middle of the multi-tooth indexing table 2, a vertical through screw rod light through hole 301 is arranged in the middle of the screw rod 3, and the indexing table light through hole 201 and the screw rod light through hole 301 are coaxial; an upper right-angle pentaprism 102 installed through an upper pentaprism installation seat 101 is arranged in the upper light cylinder 103, and a lower right-angle pentaprism 403 installed through a lower pentaprism installation seat 402 is arranged in the lower light cylinder 401; the lead screw 3 is of a trapezoidal thread structure, internal threads rotate, external threads lift, the lead screw 3 is fixed below the multi-tooth indexing table 2 with the tooth number not less than 720 through screws, the polishing barrel 103 is fixed above the multi-tooth indexing table 2 through screws, and the polishing barrel light-emitting hole 104 of the polishing barrel 103 is communicated with the indexing table light-transmitting hole 201 of the multi-tooth indexing table 2; the lower light cylinder 401 is arranged on the outer screw of the screw rod 3, so that the lower light cylinder light outlet hole 404 of the lower light cylinder 401 is communicated with the screw rod light through hole 301 of the screw rod 3; the parallelism of the reflecting surface of the upper right-angle pentaprism 102, the axis of the hole of the upper light cylinder 103, the reflecting surface of the lower right-angle pentaprism 403 and the axis of the lower light cylinder 401 is ensured not to be more than 0.01 mm.

The angular deviation of the upper right-angle pentaprism 102 and the lower right-angle pentaprism 403 is not more than 10 ".

The measurement of the angular deviation of the upper right-angle pentaprism 102 is described in detail below:

A. a plane mirror is arranged on a multi-tooth dividing table 2 (the number of teeth is 360) and is right opposite to the photoelectric autocollimator, and the reading a1 of the photoelectric autocollimator is obtained;

B. rotating the multi-tooth dividing table 2 by 90 degrees, placing the upper right-angle pentaprism 102 near the plane reflector, and ensuring that a 90-degree light-passing surface of the upper right-angle pentaprism 102 at the position can be used as an incident surface to obtain a reading a2 of the photoelectric autocollimator at the moment;

C. and (5) performing difference on the readings a1 and a2 to obtain a difference value, namely the angle deviation value of the upper right-angle pentaprism.

The multi-tooth dividing table 2 adopts end face centripetal rigid straight teeth which are subjected to surface hardening and rust prevention treatment, adopts alloy structural steel, and has the dividing precision of not more than 0.2 'and the repetition precision of not more than 0.06'.

The photoelectric collimation precision of the photoelectric autocollimator is not more than 0.1 ', the signal stability is not more than 0.1', the indication error is +/-0.2 ', and the measurement range is +/-20'.

The upper right-angle pentaprism 102 is a type ii reflecting prism (a prism in which light is reflected twice), and its optical path is turned by 90 °, and its angular deviation is not more than ± 20 ".

The measurement of the angular deviation of the lower right-angle pentaprism 403 is the same as the measurement of the angular deviation of the upper right-angle pentaprism 102.

While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention.