A total station self-collimation device mounted on a high-precision guide rail

Abstract

The utility model discloses a total station self-collimation device installed on high accuracy guide rail belongs to precision measurement technical field, the device includes the high accuracy granite guide rail of horizontal installation on the metal support, its bottom is equipped with the jack and the trundle to adjust the initial levelness and remove positioning, total station is equipped with focusing device and micro -adjusting knob, installs on the measurement top slider of guide rail, can slide with it and has the shock insulation and the attitude keeping ability, the self -collimating eyepiece is installed on total station and is used to produce the self -collimating " cross silk " to establish the law line incident state, still has the measurement side slider and so on measurement auxiliary assembly guarantee measurement stability and safety, computer and total station are connected and handle data, and this device passes through the rational structure design, has realized the accuracy, stability, versatility requirement required by the corrugation measurement first, can realize the high accuracy measurement to the surface corrugation of neutron guide tube and other precision optical device.

Description

Technical Field

[0001] This utility model relates to the field of precision measurement technology, specifically to a total station autocollimation device installed on a high-precision guide rail, which is suitable for high-precision measurement of surface waviness of precision optical devices such as neutron conduits. Background Technology

[0002] As a key component for neutron transmission, the surface smoothness of the neutron conduit directly affects the reflection and transmission efficiency of the neutron beam. Existing waviness measurement devices have significant limitations when dealing with neutron conduit measurements. First, in terms of hardware structure, most existing devices lack a highly stable measurement reference platform. Neutron conduits can be up to two meters long and come in various shapes, and the support and guiding structures of existing devices cannot guarantee the stability of the equipment throughout the measurement process, easily introducing measurement errors. For example, the guide rails of some devices are not precise enough to provide an accurate sliding reference for the measurement equipment, resulting in large fluctuations in the measurement data.

[0003] Secondly, the existing measuring devices are not flexible enough in terms of angle adjustment and positioning. Different parts of the neutron conduit may require measurement at different angles. However, the existing devices are unable to simultaneously detect changes over a wide range while accurately recording angle deviations, which cannot meet the measurement needs of neutron conduits with complex shapes. Moreover, in terms of device attitude recording, the existing devices lack efficient angle data transmission and recording methods, and cannot efficiently feed back the attitude information of the measuring device at different positions and angles, which brings difficulties to the efficiency of subsequent data analysis.

[0004] Furthermore, existing measurement devices lack a universal structural design for neutron conduits with different geometries, such as straight lines, cones, and other complex shapes. Each shape of neutron conduit may require a specific measurement device, which not only increases measurement costs but also reduces measurement efficiency. At the same time, existing devices fail to fully consider the special requirements of optical measurement equipment, such as vibration isolation and attitude maintenance, in terms of connection methods and overall structural design, making them susceptible to external interference during the measurement process, which affects the accuracy and reliability of the measurement. Summary of the Invention

[0005] To address the aforementioned problems, this utility model aims to develop a total station autocollimation device mounted on a high-precision guide rail, thereby overcoming the shortcomings of existing measuring devices in terms of structural design and connection methods, and has significant practical implications.

[0006] The technical solution adopted in this utility model is: a total station autocollimation device installed on a high-precision guide rail, comprising:

[0007] High-precision granite guide rails, horizontally arranged, with jacks at the bottom for adjusting the level and casters for moving and positioning;

[0008] The total station is mounted on the guide rail via a measuring top slider. A pneumatic sliding mechanism is provided below the measuring top slider, which uses compressed air to make the total station slide on the guide rail.

[0009] Measurement auxiliary components, including a measurement side slider, a measurement top slider, a sample stage Y-axis remote hard limit component, and a side rear air float block, are mounted on the guide rail to assist the total station in positioning and measurement.

[0010] The total station is connected to a computer, which is pre-installed with spreadsheet templates and data analysis software to receive, store, and analyze the data measured by the total station, and to calculate the waviness using appropriate formulas based on the geometry of the object being measured.

[0011] The sliding mechanism includes a guide rail slider and an air buoyancy device, which allows the total station to slide stably along the guide rail; the autocollimating eyepiece is installed on the total station and is used to generate "crosshairs" in the field of view to measure the normal direction of the reflecting surface.

[0012] The total station includes a focusing device near the eyepiece and a micro-adjustment knob on the side of the body. The focusing device is used to locate the crosshairs in the field of view, and the micro-adjustment knob is used to precisely adjust the azimuth and alignment direction of the total station.

[0013] The autocollimating eyepiece is a dedicated function extension accessory for total stations. It generates a bypass laser through a built-in optical path, enabling the total station to generate a "crosshair" formed by reflected light beams in the field of view in autocollimating mode.

[0014] The side air buoy is installed on the side of the guide rail to provide air buoy support to reduce friction and vibration during the measurement process.

[0015] The sample stage Y-axis remote hard limit component is installed at one end of the guide rail to limit the total station's movement range on the guide rail's motion axis and prevent the total station from exceeding its measurement range and causing damage.

[0016] The high-precision granite guide rail is also equipped with an intermediate reading head mounting base, which is used to install the reading head to accurately record the position of the total station on the guide rail.

[0017] The measuring side slider and measuring top slider are mounted on the guide rail to assist the total station in positioning and sliding during the measurement process, ensuring the accuracy and stability of the measurement.

[0018] The device also includes an SMC mechanical valve for controlling the air pressure and switching of the side rear air float, adjusting the opening and closing of the air float and the support force, and ensuring stability and accuracy during the measurement process.

[0019] The technical effect achieved by this utility model is as follows: The total station autocollimation device installed on a high-precision guide rail of this utility model has achieved significant technical advantages compared with the prior art.

[0020] This invention uses a high-precision granite guide rail as the sliding reference of the total station. Its material properties ensure the high stability and low thermal deformation rate of the guide rail, providing the total station with a precise and stable sliding track. Combined with the total station's own high-precision angle measurement capability, it realizes high-precision measurement of the surface waviness of precision optical devices such as neutron conduits, effectively improving the accuracy of the measurement and accurately reflecting the actual flatness of the device surface.

[0021] This invention provides stable and reliable prerequisites for measurement through the coordinated design of measurement auxiliary components such as the measuring side slider, measuring top slider, and side rear air float, as well as the precise adjustment of the guide rail level by the jack. The air float support provided by the side rear air float reduces friction and vibration during the measurement process. The measuring side slider and measuring top slider assist the total station in accurate positioning and stable sliding, ensuring the stability of the measurement process and reducing the impact of external interference on the measurement results.

[0022] The total station of this invention is equipped with a focusing device that allows the total station to find the "crosshairs" in the field of view after alignment. The micro-adjustment knob can precisely adjust the azimuth of the total station. It can simultaneously meet the measurement needs of small deviations while the normals of the reflecting surfaces of multiple measurement positions change significantly. This enables accurate measurement even for neutron conduits with complex shapes, improving the versatility and adaptability of the device.

[0023] The reading head mounted on the intermediate reading head mounting base allows surveyors to easily record the total station's position on the guide rail, providing positional information for subsequent data analysis and facilitating a more comprehensive and uniform assessment of the surface quality of the measured device. Simultaneously, the overall structural design of the device is reasonable, ensuring the stability of the total station's posture during measurement and facilitating accurate recording of the equipment's attitude.

[0024] The device's structural design fully considers the measurement needs of devices with different geometries. Whether it is a straight line, a cone, or other complex geometric optical device, it can be measured by this device without the need to replace a specific measuring device, thus reducing measurement costs and improving measurement efficiency. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall assembly structure of this utility model.

[0026] Figure 2 This is a schematic diagram of the assembly structure of the granite guide rail and platform in this invention.

[0027] Figure 3The total station model used in this invention is the Leica TDRA6000.

[0028] Explanation of reference numerals in the attached diagram: 1. Pointer; 2. Measuring side slider; 3. Measuring top slider; 4. Sample stage Y-axis distal hard limit assembly; 5. SMC mechanical valve; 6. Guide rail; 7. Side rear air float; 8. Intermediate reading head mounting base; 9. Jack; 10. Frame; 11. Casters. Detailed Implementation

[0029] The following describes in detail, with reference to the accompanying drawings, the specific implementation of the total station autocollimation device installed on a high-precision guide rail according to this utility model.

[0030] like Figure 1-3 As shown, this device mainly includes a high-precision granite guide rail (6), a total station, an autocollimating eyepiece, measurement auxiliary components, and a computer.

[0031] The high-precision granite guide rail (6) is horizontally mounted on the frame (10), with a jack (9) and casters (11) at its bottom. The jack (9) is used to adjust the absolute level of the guide rail (6) at the beginning of the equipment installation, providing a good foundation for measurement; the casters (11) facilitate the movement and positioning of the guide rail (6), so that the entire device can be flexibly arranged in a suitable working position at the beginning of the measurement.

[0032] The total station is mounted on the guide rail (6) via a sliding mechanism, specifically connected to the guide rail (6) via a measuring top slider (3). A pneumatic sliding mechanism is located below the measuring top slider (3), which uses compressed air to slide the total station on the guide rail (6). Although this sliding method is based on visual distance adjustment, it possesses excellent vibration isolation and attitude maintenance capabilities, ensuring the stability of the total station during the sliding process. The total station is equipped with a focusing device near the eyepiece and a fine adjustment knob on the side of the unit. The focusing device is used for rough alignment and locating the crosshairs in the field of view, while the fine adjustment knob is used for precise adjustment of the total station's orientation and alignment direction to meet the needs of different measurement angles.

[0033] The autocollimating eyepiece, mounted on a total station as a dedicated functional extension accessory, generates a bypass laser through its built-in optical path. In autocollimating mode, this eyepiece creates a crosshair formed by the reflected beam in the total station's field of view. By adjusting the total station to align the crosshairs of the reflected beam with the crosshairs of the total station eyepiece, the normal incidence state is established, providing a basis for accurate measurement.

[0034] Measurement auxiliary components play a crucial supporting role in the device. The measuring side slider (2) and measuring top slider (3) are mounted on the guide rail (6) to assist the total station in positioning and sliding during the measurement process, ensuring the accuracy and stability of the measurement. The sample stage Y-axis far-end hard limit component (4) is mounted on one end of the guide rail (6) to limit the range of movement of the total station on the guide rail's motion axis, preventing the total station from exceeding its range during sliding and causing damage, thus protecting the equipment. The side rear air float block (7) is mounted on the side of the guide rail (6) to provide air float support, effectively reducing friction and vibration during the measurement process, and further improving the accuracy and stability of the measurement. The intermediate reading head mounting seat (8) is mounted on the guide rail (6) to install the reading head, which can accurately record the position of the total station on the guide rail (6), providing accurate position information for subsequent data analysis. The SMC mechanical valve (5) is used to control the air pressure and switch of the side rear air float block (7), which can adjust the opening and closing of the air float and the support force, ensuring the stability and accuracy of the measurement process.

[0035] The computer is connected to the total station, and although not shown separately in the diagram, it is an important component of the device. The computer is pre-installed with spreadsheet templates and data analysis software, capable of receiving and storing data measured by the total station, and calculating waviness using appropriate formulas based on the geometry of the measured object, thus enabling rapid and accurate processing and analysis of the measurement data. A pointer (1) can be installed on the top of the device or at a suitable location for auxiliary indication or positioning operations.

[0036] Example: Taking the measurement of the waviness of a straight neutron conduit as an example, the use of this device will be described in detail.

[0037] First, move the device to a suitable measurement site using casters 11, ensuring the site is level. Then, use jacks 9 to precisely adjust the levelness of the high-precision granite guide rail 6, and calibrate it using an electronic level to ensure the guide rail 6 is absolutely level, laying the foundation for subsequent accurate measurements.

[0038] Mount the total station on the top slider 3 and install the autocollimating eyepiece. Connect the total station to the computer via Bluetooth wireless communication and open the customized communication software to ensure smooth data transmission. Next, install the measurement auxiliary components, installing the side slider 2 and the sample stage Y-axis distal hard limit assembly 4 at their respective positions on the guide rail 6. Adjust the position of the side rear air float 7 and use the SMC mechanical valve 5 to control its air pressure to provide appropriate air float support. At the same time, install the intermediate reading head mounting base 8 and install the reading head.

[0039] Place the straight neutron conduit to be tested on a suitable sample stage, adjust the height and approximate orientation of the conduit so that it is at the same height as the total station lens and the measuring surface is approximately perpendicular to the light, ensuring that the image of the total station eyepiece can be seen through the conduit's reflective surface in the total station eyepiece.

[0040] Start the total station and make rough adjustments using the fine adjustment knob on the side of the instrument to roughly align it with the guide tube measurement surface. Activate the laser function of the autocollimating eyepiece to enter autocollimation mode. Operate the total station's focusing device to focus the beam to infinity, then carefully focus in the opposite direction until two clear crosshairs appear in the field of view. At this point, use the fine adjustment knob to precisely adjust the total station's azimuth so that the crosshairs produced by the reflected beam coincide with the crosshairs of the total station eyepiece, establishing the normal incidence state. Record the azimuth value displayed by the total station at this time, while the reading head on the central reading head mounting base 8 records the total station's position information on the guide rail 6.

[0041] Slowly slide the total station along guide rail 6, repeating the focusing, azimuth adjustment, and crosshair alignment operations every 50 mm (other suitable intervals, such as 70 mm or 100 mm, can be set according to actual needs). Record the total station's azimuth and position information when establishing the normal incidence at each location. During the sliding process, the measuring side slider 2 and measuring top slider 3 assist the total station in stabilizing the sliding. The hard limit component 4 at the far end of the sample stage Y-axis provides constant limit protection, and the side rear air float 7 continuously provides air buoyancy support, reducing vibration and friction.

[0042] After the measurement is completed, the spreadsheet template and data analysis software in the computer will automatically analyze and process the data according to the geometric characteristics of the straight neutron conduit and apply the corresponding formulas to calculate the waviness of the neutron conduit.

[0043] For example, assuming n data points are recorded, the computer calculates the waviness parameter σ according to the formula (where the actual normal direction and the normal direction of the standard plane are obtained through measurement data) to evaluate the surface smoothness of the straight neutron conduit. Since this calculation formula is not an innovation of this utility model, it will not be elaborated here.

[0044] In summary, the total station autocollimation device of this utility model, mounted on a high-precision guide rail, effectively solves the problems of existing measuring devices in terms of accuracy, stability, and versatility through reasonable structural design and component coordination. This specific embodiment also demonstrates its practical application in the measurement of surface waviness of linear neutron conduits, providing a reliable technical solution for the measurement of surface waviness of precision optical devices.

Claims

1. A total station autocollimation device mounted on a high-precision guide rail, characterized in that: include: High-precision granite guide rail (6), horizontally arranged and equipped with jacks (9) for adjusting the level and casters (11) for moving and positioning at the bottom. The total station is mounted on the high-precision granite guide rail (6) via a sliding mechanism. Measurement auxiliary components include a measurement side slider (2), a measurement top slider (3), a sample stage Y-axis far-end hard limit component (4), and a side rear air float block (7) mounted on the guide rail, used to assist the total station in positioning and measurement; The total station is mounted on the guide rail by measuring top slider (3). A pneumatic sliding mechanism is provided below the measuring top slider (3) to achieve the sliding of the total station on the guide rail by compressed air. The total station is connected to a computer, which is pre-installed with spreadsheet templates and data analysis software to receive, store, and analyze the data measured by the total station, and to calculate the waviness using appropriate formulas based on the geometry of the object being measured.

2. The total station autocollimation device mounted on a high-precision guide rail according to claim 1, characterized in that: The sliding mechanism includes a guide rail slider and a pneumatic sliding mechanism, which allows the total station to slide stably along the guide rail; the autocollimating eyepiece is installed on the total station and is used to measure the normal direction of the reflecting surface in autocollimating mode.

3. The total station autocollimation device mounted on a high-precision guide rail according to claim 1, characterized in that: The total station includes a focusing device near the eyepiece and a fine adjustment knob on the side of the body. The focusing device is used to roughly align and locate the "crosshairs" in the field of view, and the fine adjustment knob is used to precisely adjust the azimuth and alignment direction of the total station.

4. The total station autocollimation device installed on a high-precision guide rail according to claim 2, characterized in that: The autocollimating eyepiece is a dedicated function extension accessory for total stations. It generates a bypass laser through a built-in optical path, enabling the total station to generate a "crosshair" formed by reflected light beams in the field of view in autocollimating mode.

5. The total station autocollimation device installed on a high-precision guide rail according to claim 1, characterized in that: The side rear air buoy (7) is installed on the side of the guide rail to provide air buoy support to reduce friction and vibration during the measurement process.

6. The total station autocollimation device mounted on a high-precision guide rail according to claim 1, characterized in that: The sample stage Y-axis remote hard limit component (4) is installed at one end of the guide rail to limit the total station’s movement range on the guide rail’s motion axis and prevent the total station from exceeding its range and causing damage.

7. The total station autocollimation device mounted on a high-precision guide rail according to claim 1, characterized in that: The high-precision granite guide rail (6) is also equipped with an intermediate reading head mounting base (8) for installing the reading head to accurately record the position of the total station on the guide rail.

8. The total station autocollimation device installed on a high-precision guide rail according to claim 1, characterized in that: The measuring side slider (2) and measuring top slider (3) are mounted on the guide rail to assist the total station in positioning and sliding during the measurement process, ensuring the accuracy and stability of the measurement.

9. The total station autocollimation device mounted on a high-precision guide rail according to claim 1, characterized in that: The device also includes an SMC mechanical valve (5) for controlling the air pressure and switching of the side rear air float (7), adjusting the opening and closing of the air float and the support force, and ensuring stability and accuracy during the measurement process.

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