Turnout steel rail web character marking and eliminating device

Abstract

The utility model discloses a turnout steel rail web character marking and eliminating device, which belongs to the field of railway product manufacturing and comprises spraying equipment and a visual perception system which are arranged at rail webs on two sides of a turnout steel rail in an operation area of a combined sawing and drilling numerical control machine tool and are sequentially arranged along the conveying direction of the steel rail; the mounting platform is connected with a mechanical arm walking track of the combined sawing and drilling numerical control machine tool in a sliding fit manner; the two sides of the installation platform are each provided with a motion control system through a supporting platform. All the parts are connected through a data transmission system. Therefore, symbol information obtained by the visual perception system and the combined sawing and drilling numerical control machine tool is received through a PLC in the motion control system, a spraying device is controlled to spray a designated position of the turnout steel rail, or the turnout steel rail is moved to the position where characters are located, and the characters are polished by controlling a polishing device in the motion control system. And the character polishing progress can be judged through a sensor in the motion control system. The device is high in automation degree, and guarantees the product quality.

Description

Technical Field

[0001] The utility model belongs to the field of railway product manufacturing, and specifically relates to a device for marking and eliminating characters on the web of turnout rails. Background Art

[0002] During the production of high-speed railway turnouts, several holes need to be processed at the web position of the rails to facilitate the connection of other components with bolts. When hot-stamped concave and convex characters on the rails appear within a certain size range around the holes or around the tie plates and spacer blocks, local stress concentration occurs at this position, posing a risk of fracture of the turnout rails. At present, the operations of identifying, marking, and grinding to eliminate stress concentration on the web characters mainly rely on manual labor. Factors such as weak light at the production site, rust on the rail surface, overcrowded stacking of rails, uneven technical levels of personnel, and operational management defects all have a certain impact on the work of eliminating stress concentration. Situations where the web characters of the rails need to be ground but are omitted, those that do not need to be ground but are misoperated, and non-standard grinding operations often occur. Moreover, there are certain safety hazards in the manual marking and grinding operations at the production site, consuming a large amount of manpower and failing to achieve the expected effect. Content of the Utility Model

[0003] In order to solve the problems existing in the manufacturing of existing products, the utility model proposes a device for marking and eliminating characters on the web of turnout rails, which has a high degree of automation and provides stable and reliable guarantee for product quality.

[0004] The device for marking and eliminating characters on the web of turnout rails of the present invention includes a visual perception system, a spraying device, a data transmission system, a central processing unit, a motion control system, and an installation platform.

[0005] The spraying device and the visual perception system are arranged at the web positions on both sides of the turnout rails in the operation area of the combined sawing and drilling numerical control machine tool, and are arranged in sequence along the rail conveying direction.

[0006] The combined sawing and drilling numerical control machine tool is connected to the central processing unit through the data transmission system; the visual perception system is connected to the central processing unit through the data transmission system.

[0007] The robotic arm of the combined sawing and drilling numerical control machine tool is located between the installation platform and the operation area of the combined sawing and drilling numerical control machine tool. The installation platform is integrally designed as a U-frame structure, and the turnout rails pass through its interior; one side of the installation platform is slidably and cooperatively connected to the robotic arm traveling track on the side of the combined sawing and drilling numerical control machine tool; a system support platform is designed on each of the left and right sides of the installation platform, and a set of motion control systems are installed on each of the two system support platforms.

[0008] The motion control system includes a distance sensor, a pressure sensor, a PLC control system and a grinding device; among them, the distance sensor, the pressure sensor and the grinding device are all fixedly installed on the moving platform of a linear moving mechanism installed on the upper surface of the system support platform; the moving direction of the moving platform is perpendicular to the direction of the web of the turnout rail; the above-mentioned distance sensor and pressure sensor are connected to the central processing unit through a data transmission system; the PLC control system is connected to the central processor through a data transmission system and is also connected to the spraying equipment and the grinding device.

[0009] The advantages of the present utility model are as follows:

[0010] 1. The device for marking and eliminating characters on the web of the turnout rail of the present utility model completes the stress elimination operation through an intelligent device for marking and eliminating characters on the web of the turnout rail, replaces the manual grinding operation mode, and has a better stress elimination effect and stronger product quality stability.

[0011] 2. The device for marking and eliminating characters on the web of the turnout rail of the present utility model realizes the stress elimination operation, can reduce the on-site operation time of personnel, effectively reduce the risk of safety accidents and occupational diseases of on-site personnel, and improve the safety operation level.

[0012] 3. The device for marking and eliminating characters on the web of the turnout rail of the present utility model is installed in the operation area of the combined sawing and drilling numerical control machine tool, can work simultaneously with the sawing and drilling processes, and realizes the purpose of eliminating stress concentration. It effectively shortens the production and manufacturing time and improves production efficiency. Brief Description of the Drawings

[0013] Figure 1 It is a structural block diagram of the device for marking and eliminating characters on the web of the turnout rail of the present utility model.

[0014] In the figure:

[0015] 1 - Visual perception system 2 - Spraying equipment 3 - Data transmission system

[0016] 4 - Central processing unit 5 - Motion control system 6 - Installation platform

[0017] 7 - Combined sawing and drilling numerical control machine tool 8 - Turnout rail 701 - Running track

[0018] 702 - Manipulator 501 - Distance sensor 502 - Pressure sensor

[0019] 503 - PLC control system 504 - Grinding device Detailed Description of the Preferred Embodiments

[0020] The present utility model will be further described in detail below with reference to the accompanying drawings.

[0021] An intelligent device for character marking and elimination on the web of turnout rails of the utility model includes a visual perception system 1, a spraying device 2, a data transmission system 3, a central processing unit 4, a motion control system 5 and a mounting platform 6.

[0022] The spraying device 2 and the visual perception system 1 are placed on both sides of the web of the turnout rail 8 in the working area of the combined saw and drill numerical control machine tool 7, arranged adjacent to each other in sequence along the rail conveying direction, and close to the rail outlet end position of the working area of the combined saw and drill numerical control machine tool 7. Among them, the visual perception system 1 is a 3D industrial camera, and the lenses are respectively perpendicular to the side surfaces of the webs on both sides of the turnout rail 8, identifying the character features around the holes on the webs on both sides of the turnout rail 8, and whether there are character features at the positions of the mounting tie plates or spacer plates of different rail types. The spraying end of the spraying device 2 faces the side surface of the web of the turnout rail 8, and is used to spray marks at the specified parts of the turnout rail.

[0023] The data transmission system 3 is used to achieve information transmission. The above-mentioned combined saw and drill numerical control machine tool 7 is connected to the central processing unit 4 through the data transmission system 3, and the central processing unit 4 reads the preset information of the processed rail parts of the combined saw and drill numerical control machine tool 7, including the type, total length, hole positioning size, and hole shape and position size information of the processed turnout rail 8. The above-mentioned visual perception system 1 is connected to the central processing unit 4 through the data transmission system 3, and the central processing unit 4 receives the instant information of the visual perception system 1 and transmits it to the central processing unit 4. Further, the central processing unit 4 processes the information and transmits it to the motion control system 5, including whether there are hot stamping concave characters at the edges of the holes at the web of the rail, and whether there are convex characters within a certain size range around the holes.

[0024] The installation platform 6 provides an installation basis for the motion control system 5, with the robotic arm 702 positioned between the combined saw-drill numerical control machine tool 7 and the installation platform 6. The installation platform 6 is designed as an overall U-frame structure, inverted at the rail conveying position, allowing the turnout rail 8 to pass through its interior. One side of the installation platform 6 is slidably and matingly connected to the robotic arm travel track 701 on the side of the combined saw-drill numerical control machine tool 7, and can be driven by a first motor to move along the length direction of the turnout rail 8 on the robotic arm travel track 701. During operation, the turnout rail 8 remains stationary, and the installation platform 6 can be arbitrarily moved to a specified position along the robotic arm travel track 701 in the length direction of the turnout rail 8, achieving the transfer of the motion control system 5 to a specified position on the web of the turnout rail 8. Before the machining of the turnout rail 8, the robotic arm 702 is located at the starting end of the robotic arm travel track 701, and the motion control system 5 is located at the terminal end of the robotic arm travel track 701; during machining, the robotic arm 702 drives the turnout rail 8 to gradually move towards the terminal end. After machining is completed, the robotic arm 702 returns to the starting end to grasp the next turnout rail 8, and at this time, the motion control system 5 starts from the terminal end and reaches the specified position to complete the marking or grinding of the concave and convex characters on the web of the rail. Therefore, it can be seen that during the entire machining process of the turnout rail 8 and the character marking or elimination process, the movements of the robotic arm 702 and the motion control system 5 on the robotic arm travel track 701 do not affect each other.

[0025] On the left and right sides of the above-mentioned installation platform 6, a system support platform is respectively designed, and a set of motion control system 5 is installed on each of the two system support platforms.

[0026] The motion control system 5 includes a distance sensor 501, a pressure sensor 502, a PLC control system 503, and a grinding device 504.

[0027] Among them, the distance sensor 501, the pressure sensor 502, and the grinding device 504 are all fixedly installed on the moving platform of the linear moving mechanism installed on the upper surface of the system support platform; the moving direction of the moving platform is perpendicular to the web direction of the turnout rail 8, and the platform is driven to move by a second motor, so that the distance sensor 501, the pressure sensor 502, and the grinding device 504 jointly move towards the web direction of the rail.

[0028] The above-mentioned distance sensor 501 and pressure sensor 502 are arranged axially perpendicular to the web of the turnout rail 8. The detection end of the distance sensor 501, the induction contact of the pressure sensor 502, and the effective grinding end of the grinding device 504 all face the web of the turnout rail 8, and the three are flush in the direction perpendicular to the web. Among them, the grinding device 504 is used to grind the surface of the rail web to eliminate the characters on the web surface; the distance sensor 501 is used to detect the distance between the grinding devices 504; the pressure sensor 502 contacts the web of the turnout rail 8 through the induction contact to detect the force value when the effective grinding end of the grinding device 504 contacts the web. The above-mentioned distance sensor 501 and pressure sensor 502 are connected to the central processing unit 4 through the data transmission system 3 and send detection signals to the central processing unit 4.

[0029] The PLC control system 503 is connected to the central processor through the data transmission system 3, and is also connected to the spraying device 2, the grinding device 504, the first motor, and the second motor through data lines. The PLC control system 503 receives the data sent by the central processing unit 4, controls the spraying device 2 to perform spraying operations, controls the grinding device 504 to perform grinding operations, and controls the first motor and the second motor to move the installation platform 6 and the grinding device 504.

[0030] The intelligent device for marking and eliminating the characters on the web of the turnout rail 8 with the above structure can realize the marking and elimination of the characters on the web of the turnout rail 8.

[0031] Among them, the process of marking the characters on the web of the turnout rail 8 is as follows:

[0032] First, the combined saw and drill numerical control machine tool 7 is started to start sawing and drilling operations. After the first partial sawing and drilling operations are completed, the turnout rail 8 is under the action of the robotic arm 702 of the combined saw and drill numerical control machine tool 7 and moves along the robotic arm travel track 701 along Figure 1Move to the next drilling position in the direction indicated by the arrow. When the turnout rail 8 passes by the 3D industrial camera, the industrial camera identifies the characteristics of the characters existing on the web of both sides of the turnout rail 8, and transmits the recorded characteristic information to the central processing unit 4 through the data transmission system 3. Subsequently, the central processing unit 4 processes the information such as the type, total length, hole positioning dimensions, hole shape and position dimensions of the turnout rail 8 provided by the combined saw and drill numerical control machine tool 7, and whether there are hot stamping concave characters on the edge of the rail web hole of the turnout rail 8 and whether there are convex characters within a certain dimension range around the hole provided by the 3D industrial camera, etc., and then can obtain the specific positions where there are character features within a certain dimension range around the hole and the specific positions where there are characters within the installation range of the tie bar and spacer according to the operating speed V of the robotic arm, and send them to the PLC control system 503. Further, the central processing unit 4 judges whether there are characters at the edge position of the rail web hole according to the processed information. If there are, it sends a spraying instruction to the PLC control system 503, and the PLC control system 503 controls the spraying device 2 to perform spraying. At this time, the sprayed characters are located at the edge position of the rail web hole.

[0033] The elimination process of the characters on the web of the turnout rail 8 includes:

[0034] Grinding of convex characters:

[0035] The central processing unit 4 judges whether there are convex characters at the specified position according to the processed information. If there are, it sends a convex character grinding instruction to the PLC control system 503. At this time, the PLC control system 503 controls the moving platform to reach the area where the characters are located according to the information processed by the central processing unit 4; then drives the grinding device 504 to move towards the rail web direction along the direction perpendicular to the movement direction of the turnout rail 8 through the first motor to perform grinding operation on the convex characters on the rail web. During the process, the contact force value between the effective grinding end of the grinding device 504 and the rail web is detected in real time by the pressure sensor 502. When the pressure sensor 502 reaches the set threshold value, it means that the effective grinding end of the grinding device 504 has advanced to the surface position of the rail web, that is, a convex character grinding operation is completed. At this time, the pressure sensor 502 transmits the detection signal to the central processing unit 4, and the central processing unit 4 sends a control instruction to the PLC control system 503, and then the PLC control system 503 controls the second motor to drive the grinding device 504 to move in the reverse direction to wait for the subsequent position grinding operation.

[0036] Grinding of concave characters:

[0037] The central processing unit 4 determines whether there is a concave character at the specified position according to the processed information. If there is, it sends a concave character grinding instruction to the PLC control system 503. At this time, the PLC control system 503 controls the mobile platform to reach the area where the character is located according to the information processed by the central processing unit 4. Subsequently, the grinding device 504 is driven by the second motor to move towards the rail web direction perpendicular to the movement direction of the switch rail 8 to perform a grinding operation on the convex character on the rail web. During the process, the distance sensor 501 continuously detects the distance between the effective grinding end of the grinding device 504 and the surface of the rail web. When the travel distance of the distance sensor 501 is equal to the sum of the distance from the deepest position of the concave character to the surface of the rail web and the initial distance from the effective grinding end of the grinding device 504 to the rail web, it means that the effective grinding end of the grinding device 504 has traveled to the deepest position of the concave character on the rail web surface, that is, a concave character grinding operation is completed. At this time, the distance sensor 501 transmits the detection signal to the central processing unit 4, and the central processing unit 4 sends an instruction to the PLC control system 503. Furthermore, the PLC control system 503 controls the second motor to drive the grinding device 504 to move in the reverse direction, waiting for the subsequent position grinding operation.

Claims

1. A device for marking and removing characters on the waist of a turnout rail, characterized in that: It includes visual perception system, spraying equipment, data transmission system, central processing unit, motion control system and installation platform; The spraying equipment and the visual perception system are placed at the rail waists on both sides of the turnout rails in the working area of ​​the combined sawing and drilling CNC machine tool, and are arranged in sequence along the conveying direction of the rails; The combined sawing and drilling CNC machine tool is connected to the central processing unit through a data transmission system; the visual perception system is connected to the central processing unit through a data transmission system; The mechanical arm of the combined sawing and drilling CNC machine tool is located between the installation platform and the operation area of ​​the combined sawing and drilling CNC machine tool. The overall design of the installation platform is a U-frame structure, and the turnout rail passes through it; one side of the installation platform is connected to the mechanical arm running track on the side of the combined sawing and drilling CNC machine tool by sliding cooperation; a system support platform is designed on the left and right sides of the installation platform, and a motion control system is installed on each of the system support platforms on both sides; The motion control system includes a distance sensor, a pressure sensor, a PLC control system and a grinding device; wherein the distance sensor, the pressure sensor and the grinding device are all fixedly mounted on a motion platform of a linear moving mechanism mounted on the upper surface of a system support platform; the moving direction of the motion platform is perpendicular to the waist direction of the turnout rail; the above-mentioned distance sensor and pressure sensor are connected to the central processing unit through a data transmission system; the PLC control system is connected to the central processing unit through the data transmission system, and is also connected to the spraying equipment and the grinding device.

2. A device for marking and removing characters on the waist of a turnout rail as claimed in claim 1, characterized in that: The distance sensor and the pressure sensor are arranged axially perpendicular to the waist of the turnout rail. The detection end of the distance sensor, the sensing contact of the pressure sensor and the effective grinding end of the grinding device are all facing the waist of the turnout rail, and the three are kept flush in the direction perpendicular to the waist.

3. A device for marking and removing characters on the waist of a turnout rail as claimed in claim 1, characterized in that: The spraying equipment and the visual perception system are located close to the rail exit end of the combined sawing and drilling CNC machine tool operation area, and the two are arranged closely together.

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