Portal type steel rail numerical control drilling machine character area drilling detection equipment

Abstract

This invention discloses a gantry-type CNC drilling machine for inspecting the character area of ​​rails, comprising an inspection system, a spraying system, a computer control system, and an electrical system. The spraying system is mounted on the inspection system, which is electrically connected to the computer control system. The computer control system is connected to the electrical system and controls its operation. The electrical system is connected to both the inspection system and the spraying system. The inspection system inspects the rails and transmits the data to the computer control system, which then controls the spraying system to complete the spraying operation. The gantry-type CNC drilling machine for inspecting the character area of ​​rails provided by this invention has a simple structure, is easy to use, and has low manufacturing cost.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of railway rail detection, and particularly relates to a gantry type rail numerical control drilling machine character area drilling detection equipment. BACKGROUND

[0002] At present, with the continuous development of domestic railways, the detection of rails becomes more and more important. In the process of maintaining the rails, the original rails need to be cut to size, and then the rail waist drilling operation is performed according to the design drawing. Since the rail waist of the original rail has a production stamping rail mark, the drilling area may overlap the character area. The concave-convex characters within a certain distance range of the hole will cause stress concentration of the hole and are not beautiful, so the characters need to be manually polished smooth. Therefore, the detection of the size and position of the rail hole becomes more and more important. The traditional detection process is to observe by manual means, and the result is often poor. The traditional detection equipment is often complex in structure, and the detection effect is not ideal due to the reasons of the rails themselves. In particular, after being used for a period of time, the detection effect of the traditional equipment is not accurate. The traditional detection equipment is relatively single in function, and cannot timely and effectively mark the corresponding position after detection. The transmission mode is manual marking, which is low in efficiency. SUMMARY

[0003] The purpose of the present application is to solve the above problems, and provide a gantry type rail numerical control drilling machine character area drilling detection equipment which is simple in structure and convenient to use.

[0004] To solve the above technical problems, the technical scheme of the present application is as follows: a gantry type rail numerical control drilling machine character area drilling detection equipment, comprising a detection system, a spraying system, a computer control system and an electrical system, the spraying system being installed on the detection system, the detection system being electrically connected with the computer control system, the computer control system being connected with the electrical system to control the work of the electrical system, the electrical system being connected with the detection system and the spraying system respectively, the detection system completing the detection of the rail and transmitting data to the computer control system, and the spraying system completing the spraying work through the control of the electrical system.

[0005] Preferably, the detection system comprises a detection support, a laser assembly, a camera assembly, a displacement sensor and a detection fixing frame are arranged on the detection support, the laser assembly comprises a high-precision laser line, the high-precision laser line emits high-precision laser to irradiate on the rail, the camera assembly comprises a first camera, a second camera and a third camera, the first camera, the second camera and the third camera respectively shoot the images of the corresponding parts of the rail, the displacement sensor is used for detecting the displacement on the rail, and a servo lead screw motor is installed on the detection fixing frame, and the servo lead screw motor drives the detection support to move on the detection fixing frame.

[0006] Preferably, the detection support is in the form of a plate structure in the shape of “X”.

[0007] Preferably, the laser assembly is covered with a camera laser protective cover, which is IP65 rated and sealed to prevent dust from entering the camera laser protective cover.

[0008] Preferably, the spraying system includes a mini air compressor, a mini air tank, an ink tank, a nozzle, and a control valve. When the detection system detects the presence of characters around the hole on the rail, the computer control system controls the control valve to make the nozzle mark a warning mark at the character in the drilling area, which is convenient for subsequent manual processing.

[0009] Preferably, the computer control system includes a computing station and a display screen, the display screen being used to display the program control interface within the computing station.

[0010] Preferably, the electrical system includes an electrical control cabinet, in which all electrical components are installed.

[0011] Preferably, the number of spraying systems is two, and they are symmetrically arranged on both sides of the rail.

[0012] The beneficial effects of this invention are as follows: The gantry-type CNC drilling machine for character area drilling and inspection provided by this invention has a simple structure, is easy to use, and has low manufacturing cost. It integrates inspection and spraying, thus overcoming the problem that traditional equipment can only perform single inspection or spraying operations. Furthermore, compared to the complexity of traditional inspection equipment, this invention saves manpower and manufacturing costs. Simultaneous inspection and spraying operations also significantly save time. Attached Figure Description

[0013] Fig. 1 This is a schematic diagram of the structure of a gantry-type CNC drilling machine for detecting drilling in the character area according to the present invention;

[0014] Fig. 2 This is a schematic diagram of the side structure of the present invention;

[0015] Fig. 3 This is a schematic diagram of the bottom structure of the present invention;

[0016] Fig. 4 This is a schematic diagram of the connection of the spraying system of the present invention.

[0017] Explanation of reference numerals in the attached drawings: 1. Detection system; 2. Spraying system; 10. Detection bracket; 11. Laser assembly; 12. Camera assembly; 13. Displacement sensor; 14. Detection fixture; 15. Servo screw motor; 20. Mini air compressor; 21. Mini air tank; 22. Ink tank; 23. Printhead; 121. First camera; 122. Second camera. Detailed Implementation

[0018] The present invention will be further described below with reference to the accompanying drawings and specific embodiments:

[0019] like Figs. 1 to 4 As shown, the present invention provides a gantry-type CNC drilling machine for detecting drilling in the character area of ​​rails, comprising a detection system 1, a spraying system 2, a computer control system, and an electrical system. The spraying system 2 is installed on the detection system 1. The detection system 1 is electrically connected to the computer control system. The computer control system is connected to the electrical system and controls the operation of the electrical system. The electrical system is connected to both the detection system 1 and the spraying system 2. The detection system 1 completes the detection of the rails and transmits the data to the computer control system, and controls the spraying system 2 to complete the spraying operation through the electrical system.

[0020] The detection system 1 includes a detection bracket 10, on which a laser assembly 11, a camera assembly 12, a displacement sensor 13, and a detection fixture 14 are mounted. The laser assembly 11 includes a high-precision laser line that emits high-precision laser light to illuminate the rail. The camera assembly 12 includes a first camera 121, a second camera 122, and a third camera 123, which respectively capture images of corresponding parts of the rail. The displacement sensor 13 is used to detect displacement on the rail. A servo screw motor 15 is mounted on the detection fixture 14, which drives the detection bracket 10 to move on the detection fixture 14.

[0021] When spraying operations are required at different locations, the position of the detection bracket 10 can be adjusted by the operation of the servo screw motor 15, thereby making the spraying operation more accurate.

[0022] The detection bracket 10 has an "X"-shaped plate structure. The detection bracket 10 serves to support the laser assembly 11, camera assembly 12, displacement sensor 13, and detection fixture 14.

[0023] The laser assembly 11 is covered with a camera laser protective cover, which is IP65 rated and sealed to prevent dust from entering. The laser protective cover is used to protect the laser assembly 11.

[0024] In this embodiment, an infrared supplementary light is installed on the detection bracket. The presence of rail web holes is automatically determined through the logical relationship between the infrared supplementary light and the third camera 123. The laser assembly 11 automatically detects the rail end and the axial position of the hole with high precision. The axial position of the hole is determined by the real-time reading of the existing magnetic scale reading head, and the relative position of the rail length and the hole is measured. A high-precision displacement sensor is installed on the detection fixing frame 14. The high-precision displacement sensor measures the height change value of the detection bracket 10 to compensate for the hole height measurement. To ensure accurate measurement for different rail types and meet the requirements of the machine tool's fixed mounting position, the relative position of the rail web needs to be adjusted accordingly for different rail types. The position of the camera assembly 12 is adjusted using an existing programmable servo screw to accommodate different rail types.

[0025] The spraying system 2 includes a mini air compressor 20, a mini air tank 21, an ink tank 22, a nozzle 23, and a control valve. When the detection system 1 detects characters around the holes on the rail, the computer control system controls the control valve to mark the characters in the drilled area with a warning mark, facilitating manual processing in subsequent procedures. The mini air compressor 20, mini air tank 21, ink tank 22, nozzle 23, and control valve are all mounted on the bracket 10.

[0026] In this embodiment, the ink can 20 and the printhead 21 are connected by a pipeline. The control valve is an existing on / off control valve device, which is installed on the printhead 21 and electrically connected to the computer control system. The computer control system controls the on / off state of the on / off valve. The mini air compressor 20 is an existing air compressor device capable of generating compressed gas. The mini air canister 21 is connected to the mini air compressor 20 by a pipeline. The high-pressure gas generated by the mini air compressor 20 is delivered to the mini air canister 21 for storage. At the same time, the mini air canister 21 is connected to the control valve by a pipeline. When the control valve and the printhead 23 are connected, compressed gas is provided through the mini air canister 21 to complete the spraying operation.

[0027] When the system detects characters around the hole, the encoder and software commands control the spraying system 2 to mark the characters in the drilling area with warning signs, which will facilitate manual processing in subsequent processes.

[0028] The computer control system includes a computing station and a display screen, which shows the program control interface within the computing station. The system processes and manages the acquired data, employing a high-performance computer at the computing station level to improve processing speed and resolution. Measurement data can be saved, and interfaces for the entire factory production system are reserved.

[0029] The electrical system includes an electrical control cabinet, which houses all electrical components. Two spraying systems (2) are symmetrically arranged on either side of the steel rails. The electrical system utilizes high-protection-level electrical cabinets and high-performance electrical components to withstand the harsh production environment within the factory.

[0030] During use, this invention detects the presence of characters in the borehole area of ​​the rail, as well as the borehole diameter and its relative position along the longitudinal and vertical directions. It employs laser imaging technology and a deformation damage locking algorithm, resulting in high precision and accuracy. The minimum character recognition accuracy reaches 0.2mm, and the accuracy range is adjustable.

[0031] The device of this invention is equipped with two sets of camera inspection equipment, which can simultaneously inspect both sides of the rail web without having to pre-determine which side of the rail web has imprinted characters; the matching magnetic scale of the machine tool is used for positioning in the X-axis direction to detect the rail length and the position of the drill hole along the direction, ensuring high accuracy in the detection of the rail length direction.

[0032] This invention uses electricity as its power source, making it particularly suitable for operation within factory buildings. Installed on a drilling machine, it does not interfere with existing drilling operations and does not use drilling machine data; the data is independent. The vibration of the rail running on the raceway has no impact on character detection. The high-frequency camera is rationally designed, highly accurate, and unaffected by machine tool vibration. It operates automatically, automatically records the distance to problematic holes, and automatically sprays markings and alarms. It uses a human-machine interface with a screen for easy compilation and parameter setting. Optional communication with the factory management system is available.

[0033] During the measurement operation, as the rail moves forward, all data is analyzed and compared. The image with the largest missing laser line through the hole is the target image. This image is processed, and the size of the missing laser line is the borehole diameter. The difference between this diameter and the corresponding value recorded on the rail bottom is converted into the hole spacing (distance from the rail end). Advantages: The measurement system is completely independent of the machine tool parameters. Disadvantages: Due to the frequent data interaction with the machine tool, there may be errors, namely, the measurement errors of hole spacing and rail length may be relatively large.

[0034] The measurement steps of this invention are as follows:

[0035] S1. Power-on self-test.

[0036] S2, Received the drilling machine start signal.

[0037] S3, Detection begins.

[0038] S4. Track end detected, step counting begins.

[0039] S5, moving forward.

[0040] S6, the signal board receives the laser line that passes through the hole.

[0041] S7. Start taking photos for inspection, detecting characters, hole diameter, and hole height.

[0042] S8. Move forward while scanning until you reach a position 50mm behind the empty space.

[0043] S9. Characters detected, markings are sprayed on the rail, and then detection continues until the rail end stops.

[0044] S10. If no character is detected in step S9, continue detecting until the track end stops.

[0045] S11, Stop.

[0046] This invention achieves fully automated and precise detection and geometric parameter measurement with independent data. Characters are marked on the track web surface, and position data such as hole diameter, hole height, and hole spacing are recorded and reflected in real-time on the computer software. This allows for real-time viewing and storage without affecting normal drilling operations. Real-time measurement and calculation time are significantly less than the actual operation time.

[0047] Those skilled in the art will recognize that the embodiments described herein are intended to help the reader understand the principles of the invention, and should be understood that the scope of protection of the invention is not limited to such specific statements and embodiments. Those skilled in the art can make various other specific modifications and combinations based on the technical teachings disclosed in this invention without departing from the spirit of the invention, and these modifications and combinations are still within the scope of protection of this invention.

Claims

1. A gantry-type CNC drilling machine for inspecting drilling in the character area, characterized in that: It includes a detection system (1), a spraying system (2), a computer control system, and an electrical system. The spraying system (2) is installed on the detection system (1). The detection system (1) is electrically connected to the computer control system. The computer control system is connected to the electrical system and controls the operation of the electrical system. The electrical system is connected to the detection system (1) and the spraying system (2) respectively. The detection system (1) completes the detection of the rail and transmits the data to the computer control system. It also controls the spraying system (2) through the electrical system to complete the spraying operation. The detection system (1) includes a detection bracket (10), which is equipped with a laser assembly (11), a camera assembly (12), a displacement sensor (13), and a detection fixture (14). The laser assembly (11) includes a high-precision laser line that emits high-precision laser light to illuminate the rail. The camera assembly (12) includes a first camera (121), a second camera (122), and a third camera (123). The first camera (121), the second camera (122), and the third camera (123) respectively capture images of the corresponding parts of the rail. The displacement sensor (13) is used to detect the displacement on the rail. A servo screw motor (15) is installed on the detection fixture (14), which drives the detection bracket (10) to move on the detection fixture (14). The spraying system (2) includes a mini air compressor (20), a mini air tank (21), an ink tank (22), a nozzle (23), and a control valve. When the detection system (1) detects the presence of characters around the hole on the rail, the computer control system controls the control valve so that the nozzle (23) marks the characters in the drilling area, which is convenient for manual processing in subsequent processes. The mini air compressor (20), mini air tank (21), ink tank (22), printhead (23) and control valve are all mounted on the detection bracket (10); The ink canister (22) and the printhead (23) are connected by a pipe. The control valve is installed on the printhead (23) and is electrically connected to the computer control system. The computer control system controls the opening and closing state of the switch valve. The mini air canister (21) is connected to the mini air compressor (20) by a pipe. The high-pressure gas generated by the mini air compressor (20) is delivered to the mini air canister (21) for storage. At the same time, the mini air canister (21) is connected to the control valve by a pipe. When the control valve and the printhead (23) are connected, compressed gas is provided through the mini air canister (21) to complete the spraying operation.

2. The gantry-type CNC drilling machine for detecting character areas as described in claim 1, characterized in that: The detection bracket (10) has an "X" shaped plate structure.

3. The gantry-type CNC drilling machine for detecting character areas as described in claim 1, characterized in that: The laser assembly (11) is covered with a camera laser protective cover, which is sealed with an IP65 rating to prevent dust from entering the camera laser protective cover.

4. The gantry-type CNC drilling machine for detecting character areas as described in claim 1, characterized in that: The computer control system includes a computing station and a display screen, which is used to display the program control interface within the computing station.

5. The gantry-type CNC drilling machine for detecting character areas as described in claim 1, characterized in that: The electrical system includes an electrical control cabinet, which houses all electrical components.

6. The gantry-type CNC drilling machine for detecting character areas as described in claim 1, characterized in that: The number of spraying systems (2) is two and they are symmetrically arranged on both sides of the rail.

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