CN216283318U

CN216283318U - Flatness measuring device

Info

Publication number: CN216283318U
Application number: CN202021393108.9U
Authority: CN
Inventors: 刘新波; 赵一策; 刘存领
Original assignee: Shaoyang University
Current assignee: Shaoyang University
Priority date: 2020-07-15
Filing date: 2020-07-15
Publication date: 2022-04-12
Anticipated expiration: 2030-07-15

Abstract

A flatness measuring device comprises a laser measuring head, a one-dimensional electric translation table, a rotary structure, a measured plane and an upper computer system. The laser measuring head comprises a triangular laser sensor, an installation frame, a lithium battery, a single chip microcomputer system, a Bluetooth antenna, a translation motor driver, a first screw, a steel wire thread insert, a second screw, a compression nut, a battery pressing plate and a first flange. The laser measuring head is connected with the one-dimensional electric translation table through a first flange, and the one-dimensional electric translation table is connected with the rotary structure through a second flange arranged at the bottom. During operation, the rotary structure drives the one-dimensional electric translation table and the laser measuring head to rotate, so that circular scanning of laser on a measured plane is realized, and the scanning radius of the one-dimensional electric translation table can be adjusted. The single chip microcomputer system transmits the measurement data to the upper computer system, and flatness non-contact measurement can be achieved. The utility model has the advantages of no winding interference, convenient use and high flatness measurement efficiency, and can meet the precision requirements of different occasions by selecting sensors with different precisions.

Description

Flatness measuring device

Technical Field

The utility model relates to the field of shape error precision measurement, in particular to a flatness measuring device.

Background

In modern manufacturing industry, as the requirement of customers on product quality is higher and higher, the detection requirement on products is stricter and stricter. In some mass consumer products, such as jaws of a vise, the quality of the plane directly affects the function and the service life of subsequent products, so that a device capable of realizing flatness measurement quickly and accurately in a machine state is increasingly favored by manufacturers. The traditional measuring method mainly adopts a contact method, is complex to operate and has low measuring efficiency.

In the existing non-contact flatness measuring method, an optical method is mainly adopted. CN2018115743895 discloses a non-contact flatness measuring device, which can obtain detection data by reflected light waves through a spectrum processing device, and obtain a plurality of height values of detection points through a movable objective table, wherein the detection speed is slow, and the precision is affected by the motion precision of the objective table; CN2015108558576 discloses a non-contact discontinuous flatness measuring system and method, in which a position sensor is used for detecting to obtain a laser reference plane, and the data of the measured surface is obtained by a laser displacement sensor, in the method, the measurement precision of the position sensor and the plane motion error of a machine tool are directly acted on the measurement result, and it is difficult to obtain higher precision. CN2009101801082 discloses a flatness measuring method for cutting tungsten and tungsten alloy devices by slow-moving wires, which forms a triangular relation among laser, a measured object and an imaging system, and calculates the measurement data of each point. CN2017203747114 discloses a non-contact laser product detection system, in which a laser generator emits laser, which is reflected on a sample, and received by a laser receiver, and the flatness of the product is determined according to the difference between optical paths at different positions, and the system is only suitable for occasions with low precision requirements. CN 20181109659 discloses a device and a method for measuring parallelism and flatness of a circular low-rigidity workpiece, which adopt multi-channel ventilation to make the workpiece in a suspension state during measurement, use a motion plane of suspension movement as a reference plane, and adopt a distance sensor to perform non-contact measurement, and are only suitable for measuring the flatness and the parallelism of the circular low-rigidity non-magnetic-conductive material workpiece.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the technology, the utility model aims to provide the flatness measuring device which is convenient to operate, high in detection precision and easy to realize automatic operation.

The technical scheme provided by the utility model is as follows: a flatness measuring device comprises a laser measuring head 100, a one-dimensional electric translation table 200, a rotary structure 300, a measured plane 400 and an upper computer system 500. The laser probe 100 includes: the device comprises a trigonometry laser sensor 101, a mounting frame 102, a lithium battery 103, a single chip microcomputer system 104, a Bluetooth antenna 105, a translation motor driver 106, a first screw 108, a steel wire thread sleeve 109, a second screw 110, a compression nut 111, a battery pressing plate 112 and a first flange 113; a first screw 108 and wire thread insert 109 clamp the chip microcomputer system 104 and the translation motor drive 106 to the left of the mounting bracket 102; the second screw 110 and the compression nut 111 clamp the trigonometric laser sensor 101 in the middle of the mounting bracket 102, and the lithium battery 103 is clamped to the right side of the mounting bracket 102 by the battery clamp plate 112.

The laser measuring head 100 is connected with the one-dimensional electric translation table 200 through a first flange 113; the one-dimensional motorized translation stage 200 is connected to the revolving structure 300 by a second flange 201 arranged at the bottom.

Further, the lithium battery 103 provides power for the triangulation laser sensor 101, the single chip microcomputer system 104, the translation motor driver 106, and the translation motor 202 of the one-dimensional electric translation stage 200.

Further, data acquired by the triangulation laser sensor 101 can be preprocessed by the single chip microcomputer system 104 and then transmitted to the upper computer system 500; the single chip system 104 may provide control commands to the translation motor driver 106.

Further, the revolving structure 300 drives the one-dimensional electric translation stage 200 and the laser measuring head 100 to rotate, so as to realize the circular scanning of the laser to the measured plane 400, and the one-dimensional electric translation stage 200 can adjust the circular scanning radius.

The beneficial effects of the utility model include: the laser measuring head 100 and the one-dimensional electric translation table 200 are powered by the lithium battery 103, and the device has no winding interference during rotation; the micro trigonometry laser sensor 101 and the small-stroke one-dimensional electric translation table 200 are selected, so that the device has small space and light weight; the single chip microcomputer system 104 is provided with a wireless communication function and can also transmit a measurement result to an upper computer such as a numerical control system, so that the system can be independently used, and can also be assembled with a machine tool, a robot and other process devices provided with a rotary main shaft to perform on-machine measurement on a plane of a machining state, thereby improving the production efficiency and the quality of products.

Drawings

FIG. 1 is a schematic view of a flatness measuring apparatus;

FIG. 2 is a schematic view of a laser probe;

FIG. 3 is an electrical connection of a laser probe and a one-dimensional motorized translation stage;

fig. 4 is a schematic view of a measurement model.

In the figure: 100. a laser probe; 200. a one-dimensional motorized translation stage; 300. a revolving structure; 400. a measured plane; 500. an upper computer system; 101. a triangulation laser sensor; 102. a mounting frame; 103. a lithium battery; 104. a single chip system; 105. a Bluetooth antenna; 106. a translation motor driver; 107. a laser beam; 108. a first screw; 109. a steel wire thread insert; 110. a second screw; 111. a compression nut; 112. a battery pressure plate; 113. a first flange; 201. a second flange; 202. a translation motor; 203. a dovetail slide; 204. a dovetail sliding table; 301. a revolving structure frame; 302. a rotating main shaft; 303. and (4) a clamping head.

Detailed Description

The present invention will be further illustrated with reference to the accompanying drawings and specific embodiments, which are to be understood as merely illustrative of the utility model and not as limiting the scope of the utility model.

Referring to fig. 1 to 2, a flatness measuring apparatus includes a laser probe 100, a one-dimensional electric translation stage 200, a rotation structure 300, a measured plane 400 and an upper computer system 500, wherein the laser probe 100 is connected to the one-dimensional electric translation stage 200 through a first flange 113; the one-dimensional motorized translation stage 200 is connected to the revolving structure 300 by a second flange 201 arranged at the bottom.

Specifically, the laser probe 100 includes: the device comprises a trigonometry laser sensor 101, a mounting frame 102, a lithium battery 103, a single chip microcomputer system 104, a Bluetooth antenna 105, a translation motor driver 106, a first screw 108, a steel wire thread sleeve 109, a second screw 110, a compression nut 111, a battery pressing plate 112 and a first flange 113; a first screw 108 and wire thread insert 109 clamp the chip microcomputer system 104 and the translation motor drive 106 to the left of the mounting bracket 102; the second screw 110 and the compression nut 111 clamp the trigonometric laser sensor 101 in the middle of the mounting bracket 102, and the lithium battery 103 is clamped to the right side of the mounting bracket 102 by the battery clamp plate 112.

Referring to fig. 3, a lithium battery 103 supplies power to the triangulation laser sensor 101, the single chip microcomputer system 104, the translation motor driver 106, and the translation motor 202 of the one-dimensional electric translation stage 200, and the output voltage of the lithium battery 103 is equal to the driving voltage of the triangulation laser sensor 101 and the translation motor 202.

As a preferred mode of the utility model, the data acquired by the trigonometry laser sensor 101 can be preprocessed by the singlechip system 104 and then transmitted to the upper computer system 500 through the Bluetooth antenna 105.

As a preferred mode of the present invention, the one-chip microcomputer system 104 can provide a control command to the translation motor driver 106.

As a preferred mode of the present invention, referring to fig. 4, the rotation structure 300 drives the one-dimensional electric translation stage 200 and the laser probe 100 to rotate, so as to implement circular scanning of the laser on the measured plane 400, and the one-dimensional electric translation stage 200 can adjust the circular scanning radius.

The technical means disclosed in the utility model scheme are not limited to the technical means disclosed in the above embodiments, but also include the technical scheme formed by any combination of the above technical features. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of the present invention, and such improvements and modifications are also considered to be within the scope of the present invention.

Claims

1. The flatness measuring device is characterized by comprising a laser measuring head (100), a one-dimensional electric translation table (200), a rotation structure (300), a measured plane (400) and an upper computer system (500), wherein the laser measuring head (100) consists of a trigonometry laser sensor (101), a mounting frame (102), a lithium battery (103), a single chip microcomputer system (104), a Bluetooth antenna (105), a translation motor driver (106), a first screw (108), a steel wire thread sleeve (109), a second screw (110), a compression nut (111), a battery pressing plate (112) and a first flange (113), the single chip microcomputer system (104) and the translation motor driver (106) are clamped on the left side of the mounting frame (102) by the first screw (108) and the steel wire thread sleeve (109), the trigonometry laser sensor (101) is clamped in the middle of the mounting frame (102) by the second screw (110) and the compression nut (111), the lithium battery (103) is clamped on the right side of the mounting frame (102) by the battery pressing plate (112); the laser measuring head (100) is connected with the one-dimensional electric translation table (200) through the first flange (113), and the one-dimensional electric translation table (200) is connected with the rotary structure (300) through a second flange (201) arranged at the bottom.

2. The flatness measuring device according to claim 1, wherein the lithium battery (103) supplies power to the triangulation laser sensor (101), the single chip microcomputer system (104), the translation motor driver (106), and a translation motor (202) of the one-dimensional motorized translation stage (200).

3. The flatness measuring apparatus according to claim 1, wherein: the rotary structure (300) drives the one-dimensional electric translation table (200) and the laser measuring head (100) to rotate, so that circular scanning of the laser to the measured plane (400) is achieved, and the circular scanning radius of the one-dimensional electric translation table (200) can be adjusted.