CN107675568A - The automatic rail top of steel rail profiling sanding apparatus of intelligence - Google Patents

Abstract

The present invention relates to the field of railway equipment, in particular to an intelligent automatic rail top profiling grinding device suitable for the welding seams of the rail top after base flash welding, including a base trolley on which There are two first supports, and the rail top profiling grinding device is arranged on the two first supports, and each support is also provided with a clamping and centering positioning device, and the two rail top profiling grinding devices A clamping and centering positioning device is provided in each side direction. The rail top profiling grinding device of the present invention can automatically judge the position of the base metal of the rail through the current feedback of the grinding wheel motor, and automatically adjust the feed rate of the grinding head without adding other detection devices, and the position detection is stable and reliable. There are manufacturing deviations between the actually manufactured steel wheel and the theoretical rail. The invention can copy the contour of the rail to be polished in real time to realize automatic grinding of the rail top weld without damaging the rail base material. The set of mechanical profiling device has simple structure and high cost performance.

Description

Intelligent automatic rail top profiling grinding device

technical field

The invention relates to the field of railway equipment, and in particular relates to an intelligent automatic rail top profiling grinding device suitable for weld seams on the top of the rail after base flash welding.

Background technique

According to the requirements of "TB/T1632.2-2014 Rail Welding Part 2 Flash Welding", after the rail is welded, it is necessary to carry out welding bar shaping (coarse grinding) processing: milling or grinding can be used for welding bar shaping, welding bar shaping , the base metal of the rail should not be damaged. In the existing rail grinding technology, the patent CN200720021510.2 railway rail profiling grinding machine is mainly manual profiling, manual judgment of the grinding feed rate, labor-intensive, and is mainly suitable for welding bead grinding after on-site welding. Patent CN201520502342.3 A portable curve-controlled high-precision rail profiling grinding machine, which mainly uses the enlarged rail profile curve as the movement track of the grinding head. This profiling grinding is similar to the profiling grinding of the present invention in terms of working principle Essentially different. Patent CN202411982U is a mobile rail welded joint profiling fine grinding machine, which is mainly used in the fine grinding process, and is mostly used for on-site welding bead grinding. It is manually controlled and the grinding feed rate is judged by human eyes, and the degree of automation is low. To sum up, the existing rail profiling grinding machine is not suitable for rough grinding of rail welds after base flash welding, and the degree of automation and intelligence is low, and it is more dependent on manual experience. With the rapid development of high-speed rail, the seamless line has higher and higher requirements for the straightness of the welded seam after rail welding, which puts forward high requirements for the rail grinding equipment, which is controlled by manual and judged by human eyes. The rail grinding equipment with the grinding feed rate cannot meet the grinding requirements of high-speed rail rails.

Contents of the invention

In order to solve the above problems, the object of the present invention is to provide an intelligent automatic rail top profiling grinding device, which is an automatic special equipment integrating machine, electricity and gas, and is suitable for rail top welding after base flash welding Grinding of seam welds.

Concrete scheme of the present invention is as follows:

An intelligent automatic profiling rail grinding device, characterized in that it includes a base trolley, two first supports are arranged on the base trolley, and the rail top profiling grinding device is arranged on the two first supports Each support is also provided with a clamping centering positioning device, and a clamping centering positioning device is respectively provided on both sides of the rail top profiling grinding device. The rail to be polished passes through the profiling grinding device on the top of the rail, and two clamping and centering positioning devices respectively clamp and center the two ends of the rail to be polished to prevent the rail to be polished from moving during grinding.

The base trolley is placed on the equipment foundation rail, and the base trolley moves along the equipment foundation rail.

Clamping centering positioning device structure:

The clamping centering positioning device includes a left splint and a right splint, the left splint and the right splint are installed on the base respectively, the left splint and the right splint are provided with gears, and the left splint and the right splint pass through the gears Engaged with each other, the bottom of at least one of the left clamping plate and the right clamping plate is connected with an air cylinder.

The inner side of the upper part of the left splint and the right splint is provided with a clamp block, and the clamp block is concave; the piston rod of the cylinder is connected with the left splint, and the cylinder body of the cylinder is installed on the first support; The base is installed on the first support; a roller is installed on the base.

The piston rod of the air cylinder pushes the left splint. Since the left splint and the right splint are engaged with each other, the right splint is driven to rotate and move inward at the same time. The concave part in the clamping block clamps the rail bottom of the rail to be polished.

Rail top profiling grinding device structure:

The rail top profiling grinding device comprises a grinding frame, the two ends of the grinding frame are connected with a cylinder lifting frame, a slide block is installed on the cylinder lifting frame, and a linear guide rail matched with it is installed on the rotary bracket assembly, The cylinder lifting frame can move up and down on the linear guide rail on the rotary support assembly through the slide block.

A single-acting cylinder is installed on the slewing bracket assembly. Its purpose is to protect the falling of the grinding head above the rail when the air source is cut off or fails, so as to avoid equipment or personal injury.

A lifting cylinder is installed on the slewing support assembly, and the lifting cylinder is fixedly connected with the cylinder lifting frame. The lifting cylinder drives the cylinder lifting frame and the grinding frame to move up and down.

The slewing bracket assembly includes an external gear slewing support, and the external gear slewing support is installed on the slewing support. The slewing support assembly can swing positively and negatively 90 degrees from the vertical direction.

The underside of the grinding frame is equipped with a profiling form. When grinding, under the action of the lifting cylinder, the profiling profile is always pressed on the rail base material.

The front end of the control valve reversing valve of the lifting cylinder is connected with a pneumatic proportional pressure reducing valve. When grinding, the pressure of the lifting cylinder is always constant, and the force of the copying mold pressing on the rail base material is also constant, so as to avoid copying when turning over. The shape profile crushes the base metal of the rail.

The grinding frame is provided with a linear guide rail along the length direction, and a slider is installed on the first support of the grinding wheel adjustment and compensation mechanism on the top of the rail, and the slider is sleeved on the linear guide rail of the grinding frame.

The linear guide rail of the grinding frame is movably socketed with a rail-top grinding wheel adjustment and compensation mechanism through a slide block.

Rail top grinding wheel adjustment compensation mechanism:

The rail top grinding wheel adjustment and compensation mechanism includes a first servo motor, a first reducer, a coupling, a screw nut transmission pair, a second support, a grinding motor, a grinding wheel connecting flange, a grinding wheel, and a linear guide rail slider Assemble and sand the motor mounting plate. The first servo motor, the first reducer and the lead screw in the lead screw nut transmission pair are installed on the second support. The linear guide rail in the linear guide rail slider is installed on the second support. The slide block in the linear guide rail slide block is installed on the grinding motor mounting plate. The nuts in the screw nut transmission pair are installed on the grinding motor mounting plate. The grinding motor is installed on the grinding motor mounting plate. The grinding wheel is installed on the grinding motor through the grinding wheel connection flange.

The first servo motor is decelerated by the first reducer, drives the screw in the screw nut transmission pair to drive the nut through the coupling, and is guided by the linear guide slider to realize the up and down movement of the grinding motor and the grinding wheel , and then realize the wear compensation of the grinding wheel. The grinding motor can determine the relative position of the grinding wheel and the rail parent material through current feedback, and feed back to the PLC control program. The first servo motor automatically adjusts the feed amount of the grinding wheel to realize the function of automatic feed of the grinding wheel.

A swing cylinder is installed on the grinding frame, the cylinder piston rod of the swing cylinder is connected with the first support in the rail top grinding wheel adjustment compensation mechanism, and the rail top grinding wheel adjustment compensation mechanism is pushed by the swing cylinder on the grinding frame sports. Realize the function of the rail top grinding wheel to detect the base metal of the rail top to be ground and the function of reciprocating grinding of the weld seam and welding bead.

Rotary drive components:

The rotary drive part mainly includes two bearing seats, a synchronous shaft is connected between the two bearing seats, and two pinion gears are fixed on the synchronous shaft, and the second servo motor is connected to a bearing seat through a second reducer .

The slewing drive part drives the large gear on the external tooth slewing bearing through the pinion, and then drives the slewing bracket assembly to perform flipping motion.

The grinding frame, the rail top grinding wheel adjustment compensation mechanism, the cylinder lifting frame, the lifting cylinder, and the profiling master installed on the rotary support assembly are under the drive of the rotary drive part, and at the same time, they are doing flipping motions, and can start from the vertical direction. Positive and negative flips 90 degrees to realize the grinding movement of the rail top and the welding seams and welds on both sides of the rail top.

A rotary support is installed on each first support, and a compression cylinder is installed on each rotary support.

The working principle and process of the present invention are as follows: a. When grinding the rail top weld bead, first adjust the grinding wheel of the rail top grinding device to the vicinity of the weld seam, then start the centering clamping devices and compression cylinders on both sides to clamp the rail Among them, an air-controlled proportional pressure reducing valve is installed on the profiling lifting cylinder to ensure the constant pressure of the profiling lifting cylinder. Start the grinding wheel motor, the grinding wheel motor is adjusted by the frequency converter, and it runs at low speed. When the motor is running at low speed, the current is more sensitive to the load. When the grinding wheel touches the rail lightly, the current changes suddenly. This signal is transmitted to the PLC control program, and the PLC control program is adjusted by the servo motor. The feeding rate of the grinding head can be adjusted to realize automatic position detection and automatic tool feeding. After the position detection, the grinding wheel motor is adjusted by the frequency converter to resume high-speed rotation. Start the rotary servo motor, and the profiling makes the grinding frame and the rail top grinding wheel adjustment and compensation mechanism installed on it turn over and grind along the track of the rail head section, so as to realize the profiling grinding of the rail head weld bead.

The advantages of the present invention are:

1. The rail top profiling grinding device of the present invention can automatically judge the position of the rail parent material through the current feedback of the grinding wheel motor, and automatically adjust the feed rate of the grinding head without adding other detection devices, and the position detection is stable and reliable. There are manufacturing deviations between the actually manufactured steel wheel and the theoretical rail shape, and the invention can copy the shape profile of the rail to be polished in real time to realize automatic grinding of the rail top weld without damaging the rail base material. The set of mechanical profiling device has simple structure and high cost performance.

2. The present invention is mainly used in factory welding or base welding, and rough grinding of rail top weld bead after rail flash welding.

Description of drawings

Fig. 1 is a schematic diagram of the overall structure layout of the present invention.

2 and 3 are schematic diagrams (three-dimensional diagrams) of the structure of the profile grinding device for the middle rail top of the present invention.

4 and 5 are structural schematic diagrams (two-dimensional diagrams) of the profile grinding device for the middle rail top of the present invention.

6 and 7 are structural schematic diagrams of the clamping and centering device in the present invention.

Figures 8, 9 and 10 are schematic diagrams of the adjustment and compensation structure of the rail top grinding wheel of the present invention.

Figures 11 and 12 are structural schematic diagrams of the rotary drive components of the present invention.

In the attached picture:

Rail top profiling grinding device 1, first support 2, clamping and centering positioning device 3, base trolley 4.

Single-acting cylinder 101, compression cylinder 102, slewing support 103, steel rail to be polished 104, slewing drive part 105, slewing bracket assembly 106, grinding frame 107, rail top grinding wheel adjustment compensation mechanism 108, swing cylinder 109, cylinder lifting Frame 110, lifting cylinder 111, profiling template 112.

Left clamping plate 301, clamping block 302, right clamping plate 303, air cylinder 304, base 305, roller 306.

The first servo motor 1081, the first reducer 1082, the coupling 1083, the screw nut transmission pair 1084, the second support 1085, the grinding motor 1086, the grinding wheel connecting flange 1087, the grinding wheel 1088, the linear guide rail slider 1089, Grind motor mounting plate 10810.

The second servo motor 1051, the second speed reducer 1052, the bearing housing 1053, the pinion gear 1054, and the synchronous shaft 1055.

detailed description

Example 1

An intelligent automatic profiling rail grinding device includes a base trolley 4, two first supports 2 are arranged on the base trolley 4, and the rail top profiling grinding device 1 is arranged on the two first supports 2 , Each support is also provided with a clamping centering positioning device 3, and a clamping centering positioning device 3 is respectively provided on both sides of the rail top profiling grinding device 1 . The rail 104 to be polished passes through the rail top profiling grinding device 1, and two clamping and centering positioning devices 3 respectively clamp and center the two ends of the rail 104 to be polished to prevent the rail 104 to be polished from moving during grinding. The base trolley 4 is placed on the equipment foundation rail, and the base trolley 4 moves along the equipment foundation rail. The rail top profiling grinding device 1 of the present invention can automatically judge the position of the base material of the rail through the current feedback of the grinding wheel motor, and automatically adjust the feed rate of the grinding head without adding other detection devices, and the position detection is stable and reliable. There are manufacturing deviations between the actually manufactured steel wheel and the theoretical rail shape, and the present invention can copy the shape profile of the rail 104 to be polished in real time to realize automatic grinding of the rail top weld without damaging the rail base material. The set of mechanical profiling device has simple structure and high cost performance.

Example 2

An intelligent automatic profiling rail grinding device includes a base trolley 4, two first supports 2 are arranged on the base trolley 4, and the rail top profiling grinding device 1 is arranged on the two first supports 2 Each bracket is also provided with a clamping centering positioning device 3, and a clamping centering positioning device 3 is respectively provided on both sides of the rail top profiling grinding device 1. The rail 104 to be polished passes through the rail top profiling grinding device 1, and two clamping and centering positioning devices 3 respectively clamp and center the two ends of the rail 104 to be polished to prevent the rail 104 to be polished from moving during grinding.

The base trolley 4 is placed on the equipment foundation rail, and the base trolley 4 moves along the equipment foundation rail.

The clamping centering positioning device 3 includes a left splint 301 and a right splint 303, the left splint 301 and the right splint 303 are installed on the base 305 respectively, and the left splint 301 and the right splint 303 are provided with gears, so The left splint 301 and the right splint 303 are engaged with each other through gears, and the bottom of at least one of the left splint 301 and the right splint 303 is connected with a cylinder 304 .

The inner sides of the upper part of the left clamping plate 301 and the right clamping plate 303 are provided with clamping blocks 302, and the clamping blocks 302 are concave; the piston rod of the cylinder 304 is connected with the left clamping plate 301, and the cylinder body of the cylinder 304 is installed on On a base 2; the base 305 is installed on the first base 2; a roller 306 is installed on the base 305.

The piston rod of cylinder 304 promotes left clamping plate 301, because left clamping plate 301 and right clamping plate 303 are engaged with each other, so drive right clamping plate 303 to rotate inwardly at the same time, the concave part clamping in clamping block 302 is to be polished the rail bottom of rail 104.

Described rail top profiling grinding device 1 comprises grinding frame 107, and the two ends of described grinding frame 107 are connected with cylinder lifting frame 110, and slide block is installed on described cylinder lifting frame 110, and rotary support assembly 106 is installed with The matching linear guide rail, the cylinder lifting frame 110 can move up and down on the linear guide rail on the rotary bracket assembly 106 through the slider.

A single-acting cylinder 101 is mounted on the slewing bracket assembly 106 . Its purpose is to protect the falling of the grinding head above the rail when the air source is cut off or fails, so as to avoid equipment or personal injury.

A lifting cylinder 111 is installed on the slewing bracket assembly 106 , and the lifting cylinder 111 is fixedly connected with the cylinder lifting frame 110 . The lifting cylinder 111 drives the cylinder lifting frame 110 and the grinding frame 107 to move up and down.

The slewing bracket assembly 106 includes an external gear slewing support, and the external gear slewing support is installed on the slewing support 103 . The slewing bracket assembly 106 can swing positively and negatively by 90 degrees from the vertical direction.

The underside of described grinding frame 107 is equipped with profiling master form 112. During grinding, under the effect of the lifting cylinder 111, the profiling master 112 is pressed on the rail base material all the time.

The front end of the control valve reversing valve of the lifting cylinder 111 is connected with a pneumatic proportional pressure reducing valve. When grinding, the pressure of the lifting cylinder 111 is always constant, and the force of the profiling master 112 pressing on the rail parent material is also constant. The profiling profile 112 crushes the rail parent material when avoiding overturning.

The grinding frame 107 is provided with a linear guide rail along the length direction, and a slide block is installed on the first support 2 of the grinding wheel adjustment and compensation mechanism 108 on the top of the rail, and the slide block is installed on the linear guide rail of the grinding frame 107 .

The linear guide rail of the grinding frame 107 is movably socketed with a rail-top grinding wheel adjustment and compensation mechanism 108 through a slider.

The rail top grinding wheel adjustment compensation mechanism 108 includes a first servo motor 1081, a first reducer 1082, a shaft coupling 1083, a screw nut transmission pair 1084, a second support 1085, a grinding motor 1086, and a grinding wheel connecting flange 1087 , grinding wheel 1088, linear guide rail slider 1089 combination and grinding motor mounting plate 10810. The first servo motor 1081 , the first reducer 1082 and the lead screw in the lead screw nut transmission pair 1084 are installed on the second support 1085 . The linear guide rail in the linear guide rail slider 1089 is installed on the second support 1085 . The slide block in the linear guide slide block 1089 is installed on the grinding motor mounting plate 10810. The nuts in the screw nut transmission pair 1084 are installed on the grinding motor mounting plate 10810. The grinding motor 1086 is installed on the grinding motor mounting plate 10810 . The grinding wheel 1088 is installed on the grinding motor 1086 through the grinding wheel connection flange 1087 .

The first servo motor 1081 is decelerated through the first reducer 1082, drives the screw in the screw nut transmission pair 1084 to drive the nut through the coupling 1083, and is guided by the linear guide rail slider 1089 to realize the grinding motor 1086 And the up and down movement of the grinding wheel 1088, and then realize the wear compensation of the grinding wheel. The grinding motor 1086 can determine the relative position of the grinding wheel and the rail parent material through current feedback, and feed back to the PLC control program. The first servo motor 1081 automatically adjusts the feed amount of the grinding wheel to realize the function of automatic feed of the grinding wheel.

A swing cylinder 109 is installed on the grinding frame 107, and the cylinder 304 piston rod of the swing cylinder 109 is connected with the first support 2 in the rail top grinding wheel adjustment compensation mechanism 108, and the rail top grinding wheel is adjusted by the swing cylinder 109. The compensation mechanism 108 moves on the grinding frame 107 . Realize the rail top grinding wheel 1088 to be polished rail 104 rail top parent metal position detection and welding seam welding bead reciprocating grinding function.

The rotary drive part 105 mainly includes two bearing housings 1053, a synchronous shaft 1055 is connected between the two bearing housings 1053, and two pinion gears 1054 are fixed on the synchronous shaft 1055, and the second servo motor 1051 passes through the second Speed reducer 1052 links to each other with a bearing seat 1053.

The slewing drive part 105 drives the large gear on the external gear slewing bearing through the pinion 1054, and then drives the slewing bracket assembly 106 to perform flipping motion.

The grinding frame 107, the rail top grinding wheel adjustment and compensation mechanism 108, the cylinder lifting frame 110, the lifting cylinder 111, and the profiling master 112 installed on the rotary support assembly 106 are turned over at the same time under the drive of the rotary drive part 105. The movement can be positive and negative flipped 90 degrees from the vertical direction to realize the grinding movement of the rail top and the weld seams on both sides of the rail top.

A rotary support 103 is installed on each first support 2 , and a compression cylinder 102 is installed on each rotary support 103 .

The working principle and process of the present invention are as follows: a. When grinding the rail top welding bead, first adjust the grinding wheel of the rail top grinding device to the vicinity of the weld seam, and then start the centering clamping devices and compression cylinders 102 on both sides to clamp the rail For centering, an air-controlled proportional pressure reducing valve is installed on the profiling lifting cylinder 111 to ensure a constant pressure of the profiling lifting cylinder 111, and the profiling master 112 is pressed tightly on the rail head under the action of the profiling lifting cylinder 111 , start the swing cylinder 109, start the grinding wheel motor, the grinding wheel motor is adjusted by the frequency converter, and run at a low speed. When the motor is running at a low speed, the current is more sensitive to the load. The control program adjusts the feed rate of the grinding head through the servo motor to realize automatic position detection and automatic knife feeding. After the position detection, the grinding wheel motor is adjusted by the frequency converter to resume high-speed rotation. Start the rotary servo motor, and the profiling master 112 makes the grinding frame 107 and the rail top grinding wheel adjustment and compensation mechanism 108 installed on it turn over and grind along the track of the rail head section, so as to realize the profiling grinding of the rail head weld bead .

The rail top profiling grinding device 1 of the present invention can automatically judge the position of the base material of the rail through the current feedback of the grinding wheel motor, and automatically adjust the feed rate of the grinding head without adding other detection devices, and the position detection is stable and reliable. There are manufacturing deviations between the actually manufactured steel wheel and the theoretical rail shape, and the present invention can copy the shape profile of the rail 104 to be polished in real time to realize automatic grinding of the rail top weld without damaging the rail base material. The set of mechanical profiling device has simple structure and high cost performance. The rail top profiling grinding device 1 in the present invention presses on the rails 104 to be polished on both sides of the weld through the cams on both sides, and performs profiling grinding on the weld bead of the rail without damaging the base material of the rail. The invention is mainly used in factory welding or base welding, and rough grinding of rail top welding seams after flash welding of rails.

Example 3

The present invention is further described below in conjunction with accompanying drawing:

As shown in Figure 1, an intelligent rail top profiling grinding device is used for automatic rough grinding of the rail top and the weld bead on both sides of the rail top, which complies with "TB/T1632.2-2014 Rail Welding Part 2 Coarse grinding requirements for flash welding.

As shown in Fig. 1, Fig. 2, Fig. 3 and Fig. 4: the rail top profiling grinding device 1 is installed on the support 2 and arranged on the upper side of the rail to be polished. The rail top profiling grinding device 1 can swing positively and negatively 90 degrees from the vertical direction to realize automatic position detection and automatic grinding of the rail top and the welding seams on both sides of the rail top.

As shown in FIG. 1 : the support 2 is installed on the base trolley 4 .

As shown in FIG. 1 , the rail clamping and centering positioning device 3 is installed on the support 2 and arranged on both sides of the rail top profiling grinding device 1 . The rail clamping and centering positioning device 3 is composed of a bracket, a roller, a gear, a cylinder and the like. The rail clamping and centering positioning device 3 can realize the clamping and centering of the rails at both ends of the welding seam, preventing the rails from moving during grinding.

As shown in Fig. 2, Fig. 3 and Fig. 4: the rail top profiling grinding device 1 consists of a single-acting cylinder 101 (two), a compression cylinder 102 (two), a rotary support 103 (two), and a Grinding rail 104, rotary drive components (servo motor + reducer + pinion) 105, rotary bracket assembly 106 (two), grinding frame 107, rail top grinding wheel adjustment and compensation mechanism 108, swing cylinder 109, cylinder lifting frame 110 (two), lifting cylinder 111 (two), profiling pattern 112 (two) etc. constitute.

As shown in Fig. 2, Fig. 3 and Fig. 4: the single-acting cylinder 101 is installed on the rotary bracket assembly 106 to prevent the falling of the grinding head above the rail when the air source is cut off or fails, so as to avoid equipment or personal injury.

As shown in FIG. 2 , FIG. 3 , and FIG. 4 : the pressing cylinders 102 (two) are installed on the rotary support 103 . When grinding, press the rail to be ground downward from the vertical direction.

As shown in FIG. 2 , FIG. 3 , and FIG. 4 : the rotary support 103 is installed on the support 2 .

As shown in FIGS. 2 and 3 , the slewing support assembly 106 includes an external gear slewing support, and is installed on the slewing support 103 through the external gear slewing support. The slewing bracket assembly 106 can swing positively and negatively by 90 degrees from the vertical direction.

As shown in Fig. 2, Fig. 3 and Fig. 4: the two ends of the grinding frame 107 are connected together with the cylinder lifting frame 109 by bolts.

As shown in Figure 2, Figure 3 and Figure 4: a slide block is installed on the cylinder lifting frame 109, a linear guide rail is installed on the rotary bracket assembly 106, and the cylinder lifting frame 109 can be mounted on the rotary bracket assembly through a slider The linear guide rail on the 106 moves up and down.

As shown in Fig. 2, Fig. 3 and Fig. 4: a lifting cylinder 111 is installed on the rotary support assembly 106, and the lifting cylinder 111 drives the cylinder lifting frame 110 and the grinding frame 107 to move up and down.

As shown in FIGS. 2 and 3 , the profiling master 112 is installed on the lower side of the grinding frame 107 . During grinding, under the effect of the lifting cylinder 111, the profiling master 112 is pressed on the rail base material all the time.

As shown in Fig. 2 and Fig. 3: the front end of the control valve reversing valve of the lifting cylinder 111 is connected with a pneumatic proportional pressure reducing valve. During grinding, the pressure of the lifting cylinder 111 is always constant. The power that the profiling former 112 is pressed on the rail parent material is also constant, so that the profiling former 112 will crush the rail parent material when avoiding turning over.

As shown in Fig. 2 and Fig. 3: the grinding frame 107 is equipped with a linear guide rail.

As shown in Fig. 2 and Fig. 3: the rail top grinding wheel adjustment compensation mechanism 108 is provided with a slide block, and the rail top grinding wheel adjustment compensation mechanism 108 can move on the linear guide rail of the grinding frame 107 through the slider.

As shown in Fig. 2 and Fig. 3: a swing cylinder 109 is installed on the grinding frame 107, and the rail top grinding wheel adjustment compensation mechanism 108 is driven to move on the grinding frame 107 by the swing cylinder 109. Realize the functions of the rail top grinding wheel to detect the position of the base metal of the rail 104 rail top to be polished and the reciprocating grinding of the weld bead.

As shown in Fig. 2 and Fig. 3: the rail top grinding wheel adjustment compensation mechanism 108 drives the screw nut through the servo motor + reducer to realize the up and down movement of the rail top grinding wheel, and then realizes the wear compensation of the grinding wheel.

As shown in Figure 2 and Figure 3: the grinding motor on the rail top grinding wheel adjustment compensation mechanism 108 can determine the relative position of the grinding wheel and the rail base material through current feedback, and feed back to the PLC control program to automatically adjust the feed of the grinding wheel The amount realizes the function of automatic feeding of the grinding wheel.

As shown in Fig. 2, Fig. 3, Fig. 11 and Fig. 12: the rotary drive part (servo motor+reducer+pinion) 105 is installed on the support 2.

As shown in Fig. 2, Fig. 3, Fig. 11 and Fig. 12: the rotary drive part 105 drives the large gear on the external gear rotary bearing through the pinion, and then drives the rotary bracket assembly 106 to perform the turning motion.

As shown in Fig. 2, Fig. 3, Fig. 4 and Fig. 5: the grinding frame 107 installed on the rotary support assembly 106, the rail top grinding wheel adjustment and compensation mechanism 108, the cylinder lifting frame 110, the lifting cylinder 111, the profiling rest The mold 112 is under the drive of the rotary drive part 105, and is doing the overturning motion at the same time. It can be positively and negatively overturned 90 degrees from the vertical direction, so as to realize the grinding motion of the rail top and the weld bead on both sides of the rail top.

As shown in Fig. 1, Fig. 2, Fig. 3, Fig. 4 and Fig. 5: the rail top profiling grinding device 1 is arranged on the upper side of the rail 104 to be polished. After the steel rail 104 to be polished enters the equipment along the base roller line, the base trolley 4 moves to move the grinding device to the vicinity of the weld, and starts the compression cylinder 102 on both sides and the centering clamping and positioning device 2 to realize the two ends of the weld Clamping and centering of rails. The lifting cylinder 110 in the rail top profiling grinding device 1 acts to push the grinding frame 107, so that the profiling master 111 is always pressed on the rail base material. The servo motor in the slewing drive part 105 drives the pinion, and drives the external tooth slewing bearing in the slewing bracket assembly 106, so that the slewing bracket assembly 106 turns over 90 degrees to one side of the rail top of the rail 104 to be polished, and the rail top grinding wheel adjusts the compensating mechanism 108 began automatic position detection and automatic profiling grinding.

The preferred embodiments of the present invention have been described in detail above in conjunction with the accompanying drawings, but the application is not limited to the above embodiments, and various changes can also be made within the knowledge of those of ordinary skill in the art, and these changes all belong to the present invention within the scope of the new protection.

Claims (9)

1. An intelligent automatic profiling rail grinding device, characterized in that it includes a base trolley (4), and two first supports (2) are arranged on the base trolley (4), and the rail top profiling The grinding device (1) is set on two first supports (2), and each support is also provided with a clamping and centering positioning device (3). A clamping and centering positioning device (3) is provided respectively, the base trolley (4) is placed on the equipment foundation rail, and the base trolley (4) moves along the equipment foundation rail. 2. The intelligent automatic profiling rail grinding device according to claim 1, characterized in that: the clamping and centering positioning device (3) includes a left splint (301) and a right splint (303), and the left splint (301) and the right splint (303) are respectively installed on the base (305), the left splint (301) and the right splint (303) are provided with gears, the left splint (301) and the right splint (303) A cylinder (304) is connected to the bottom of at least one of the left splint (301) and the right splint (303) through gears meshing with each other. 3. The intelligent automatic profiling rail grinding device according to claim 2, characterized in that: clamping blocks (302) are provided on the upper inner sides of the left splint (301) and the right splint (303), and the clamping The block (302) is concave; the piston rod of the cylinder (304) is connected to the left splint (301), and the cylinder body of the cylinder (304) is installed on the first support (2); the base (305) Installed on the first support (2); a roller (306) is installed on the base (305). 4. The intelligent automatic profiling rail grinding device according to claim 1, characterized in that: the rail top profiling grinding device (1) includes a grinding frame (107), and the grinding frame (107) has two The end is connected with a cylinder lifting frame (110), a slide block is installed on the cylinder lifting frame (110), and a linear guide rail matched with it is installed on the rotary bracket assembly (106). 5. The intelligent automatic profiling rail grinding device according to claim 4, characterized in that: a single-acting cylinder (101) is installed on the rotary bracket assembly (106); There is a lifting cylinder (111), and the lifting cylinder (111) is fixedly connected to the cylinder lifting frame (110); the slewing bracket assembly (106) includes an external gear slewing bearing, and the external gear slewing bearing is installed on the slewing support (103) above; the lower side of the grinding frame (107) is equipped with a profiling model (112); the front end of the control valve reversing valve of the lifting cylinder (111) is connected with a pneumatic proportional pressure reducing valve; the grinding frame (107) A linear guide rail is installed along the length direction, and a slider is installed on the first support (2) of the grinding wheel adjustment compensation mechanism (108) on the top of the rail, and the slider is sleeved on the grinding frame (107) The linear guide rail of the grinding frame (107) is movably socketed with a rail top grinding wheel adjustment and compensation mechanism (108) through a slider. 6. The intelligent automatic profiling rail grinding device according to claim 1, characterized in that: the rail top grinding wheel adjustment and compensation mechanism (108) includes a first servo motor (1081), a first reducer (1082), a joint Shaft device (1083), screw nut transmission pair (1084), second support (1085), grinding motor (1086), grinding wheel connecting flange (1087), grinding wheel (1088), linear guide rail slider (1089) Assemble and polish the motor mounting plate (10810); the lead screw in the first servo motor (1081), the first reducer (1082) and the lead screw nut transmission pair (1084) is installed on the second support (1085) ; The linear guide rail in the linear guide rail slider (1089) is installed on the second support (1085); the slider in the linear guide rail slider (1089) is installed on the grinding motor mounting plate (10810); the The nuts in the screw nut transmission pair (1084) are installed on the grinding motor mounting plate (10810); the grinding motor (1086) is installed on the grinding motor mounting plate (10810); the grinding wheel (1088) passes through the grinding wheel The connecting flange (1087) is installed on the grinding motor (1086). 7. The intelligent automatic profiling rail grinding device according to claim 4, characterized in that: a swing cylinder (109) is installed on the grinding frame (107), and the piston of the cylinder (304) of the swing cylinder (109) The rod is connected with the first support (2) in the rail top grinding wheel adjustment compensation mechanism (108), and the rail top grinding wheel adjustment compensation mechanism (108) is pushed to move on the grinding frame (107) through the swing cylinder (109) . 8. The intelligent automatic profiling rail grinding device according to claim 1, characterized in that: the rotary drive part (105) includes two bearing seats (1053), and a synchronous shaft is connected between the two bearing seats (1053) (1055), two pinion gears (1054) are fixed on the synchronous shaft (1055), and the second servo motor (1051) is connected with a bearing seat (1053) through a second reducer (1052). 9. The intelligent automatic profiling rail grinding device according to claim 8, characterized in that: the grinding frame (107) installed on the rotary support assembly (106), the rail top grinding wheel adjustment and compensation mechanism (108) , the cylinder lifting frame (110), the lifting cylinder (111), and the profiling master (112) are doing flipping motions under the drive of the rotary drive part (105); each first support (2) is equipped with Rotary support (103), each rotary support (103) is equipped with compression cylinder (102).