CN202485905U - Transmission and return difference precision optical measurement device - Google Patents

Abstract

The utility model discloses a transmission and return difference precision optical measurement device which is characterized by comprising a workbench, a theodolite supporting table, an electronic theodolite, a handwheel, a polyhedron, an auto-collimation meter, a speed reducer, a parallel light tube and a parallel light tube supporting seat, wherein the electronic theodolite is arranged on the theodolite supporting table; the theodolite supporting table is arranged on a product to be measured, and the electronic theodolite is perpendicular to the rotation center of the product to be measured; the speed reducer is arranged on one side of the theodolite supporting table; the handwheel is arranged on an input shaft of the speed reducer; the polyhedron is arranged on an output shaft of the product to be measured; the auto-collimation meter is arranged on one side of the speed reducer and perpendicular to the light axis of a certain surface of the polyhedron; and the parallel light tube is arranged on the parallel light tube supporting seat and superposed with the light axis of the electronic theodolite. By adopting an optical measurement theory, the transmission and return difference precision optical measurement device realizes high-precision and micro-error measurement and totally meets the requirements on high precision, high accuracy and high reliability of mechanical transmission systems of manufacturing industry.

Description

An optical measurement device for transmission and hysteresis accuracy

technical field

The utility model relates to the technical field of optical testing, in particular to a transmission and hysteresis accuracy measuring device of a mechanical transmission chain in a manufacturing industry.

Background technique

At present, we use lenses to measure the precision of transmission and backlash. The optical measurement devices in the prior art have the following problems: since it is necessary to obtain the optical parameters of multiple viewing angles of the sample to be measured, it is necessary to obtain by moving the lens. For the required angle of view, it takes time to move the lens every time, and the efficiency is not high, and multiple movements can easily cause the lens to shift and cause human error.

In order to solve the above-mentioned deficiencies in the prior art, the utility model provides a new solution.

Utility model content

The technical problem to be solved by the utility model is: aiming at the deficiencies of the prior art, to provide an optical measurement device for transmission and hysteresis accuracy. , The measurement of small errors fully meets the requirements of high precision, high accuracy and high reliability of the mechanical transmission system of the manufacturing industry.

In order to achieve the purpose of the above invention, the technical solution adopted by the utility model is to provide an optical measurement device for transmission and hysteresis accuracy, which is characterized in that it includes a workbench, a theodolite support platform, an electronic theodolite, a hand wheel, a polyhedron, an auto-alignment Collimator, reducer, collimator and collimator support seat; the electronic theodolite is arranged on the theodolite support platform, the theodolite support platform is arranged on the product to be tested and the electronic theodolite is perpendicular to the center of rotation of the product to be measured; The reducer is arranged on one side of the theodolite support table; the handwheel is installed on the input shaft of the reducer; the polyhedron is installed on the output shaft of the product to be measured; the autocollimator is arranged on one side of the reducer and connected with The optical axis of a certain surface of the polyhedron is vertical; the collimator is arranged on the supporting seat of the collimator, and the collimator coincides with the optical axis of the electronic theodolite.

In summary, the optical measurement device for transmission and hysteresis accuracy provided by the utility model adopts the advanced optical measurement principle, realizes high-precision and small-error measurement, and fully meets the high-precision and high-accuracy requirements of the mechanical transmission system in the manufacturing industry. , High reliability requirements.

Description of drawings

Figure 1 is a structural schematic diagram of an optical measurement device for transmission and hysteresis accuracy.

Among them, 1. Workbench; 2. Theodolite support platform; 3. Electronic theodolite; 4. Handwheel; 5. Polyhedron; 6. Autocollimator; 7. Reducer; 8. Collimator; 9. Collimator Support base.

Detailed ways

The specific embodiment of the utility model is described in detail below in conjunction with accompanying drawing:

As shown in the figure, the transmission and hysteresis accuracy optical measurement device includes a workbench 1, a theodolite support table 2, an electronic theodolite 3, a hand wheel 4, a polyhedron 5, an autocollimator 6, a reducer 7, a collimator 8 and Collimator support base 9; the electronic theodolite 3 is arranged on the theodolite support platform 2, the theodolite support platform 2 is arranged on the product to be measured and the electronic theodolite 3 is perpendicular to the center of rotation of the product to be measured; the speed reducer 7 is arranged on Theodolite support table 2 side; The hand wheel 4 is installed on the input shaft of the speed reducer 7; The polyhedron 5 is installed on the output shaft of the product to be measured; The autocollimator 6 is arranged on the speed reducer 7 side And it is perpendicular to the optical axis of a certain surface of the polyhedron 5; the collimator 8 is arranged on the collimator support base 9, and the collimator 8 coincides with the optical axis of the electronic theodolite 3.

The optical axis of the electronic theodolite 3 coincides with the optical axis of the collimator 8, and an initial reference is established; the optical axis of the autocollimator 6 is perpendicular to a certain mirror surface of the polyhedron 5, and a reference is established, and then any angle measurement can be started.

The specific implementation method is:

The axis center of the electronic theodolite 3 is perpendicular to the center of rotation of the product to be tested, coincides with the optical axis of the collimator 8, and the electronic theodolite 3 is reset.

Place the product to be tested on the workbench, turn the hand wheel 4 clockwise (the hysteresis in the clockwise direction should be eliminated), and when the autocollimator 6 is aligned with the next face of the polyhedron 5, align the electronic theodolite 3 with the parallel light Tube 8 records the actual value measured by the electronic theodolite 3, which is the measured rotation angle of the first point. According to the above method, the output shaft azimuth changes of the remaining N points (the N points corresponding to the autocollimator 6 aligned with the polyhedron 5) are sequentially detected clockwise, and the corresponding reading of the electronic theodolite 3 is the measured rotation of the clockwise N points of the transmission chain. Angle; the difference between the measured clockwise rotation angle and the theoretical rotation angle of the corresponding point (the angle value calculated according to the transmission ratio theory) is the transmission error of the clockwise transmission chain. After the clockwise measurement, the electronic theodolite 3 is not cleared, continue to turn the handwheel 4 three times clockwise, then turn the handwheel 4 three times counterclockwise, when the autocollimator 6 is aligned with the polyhedron 5, align the electronic theodolite 3 Collimator 8 then electronic theodolite 3 is cleared. Turn the hand wheel 4 counterclockwise. When the autocollimator 6 is aligned with the next surface of the polyhedron 5, use the electronic theodolite 3 to measure the actual rotation angle of the product under test, which is the actual rotation angle of the first point counterclockwise. According to the above method , counterclockwise sequentially detect the output shaft azimuth changes of the remaining N points (the autocollimator 6 is aligned with the N points corresponding to the polyhedron 5), the measured rotation angle value and the theoretical rotation angle of the corresponding point (the angle calculated according to the transmission ratio theory value) is the transmission error of N counterclockwise points of the transmission chain.

To sum up, the transmission and hysteresis accuracy optical measurement device provided by the utility model adopts the advanced optical measurement principle, realizes the measurement of high precision and small error, and fully meets the high precision and high accuracy of the mechanical transmission system in the manufacturing industry. Degree, high reliability requirements.

Although the specific implementation of the utility model has been described in detail in conjunction with the accompanying drawings, it should not be understood as limiting the scope of protection of this patent. Within the scope described in the claims, various modifications and deformations that can be made by those skilled in the art without creative efforts still belong to the protection scope of this patent.

Claims (1)

1. An optical measurement device for transmission and hysteresis accuracy, characterized in that it includes a workbench (1), a theodolite support table (2), an electronic theodolite (3), a hand wheel (4), a polyhedron (5), an auto-alignment Straight instrument (6), reducer (7), collimator (8) and collimator support seat (9); The electronic theodolite (3) is arranged on the theodolite support platform (2), theodolite support platform (2 ) is set on the product to be tested and the electronic theodolite (3) is perpendicular to the center of rotation of the product to be tested; the reducer (7) is set on the side of the theodolite support platform (2); the hand wheel (4) is installed on the reducer on the input shaft of the machine (7); the polyhedron (5) is installed on the output shaft of the product to be tested; the autocollimator (6) is set on one side of the reducer (7) One side of the optical axis is vertical; the collimator (8) is arranged on the collimator support seat (9), and the collimator (8) coincides with the optical axis of the electronic theodolite (3).

Images