CN111719360A - Milling and grinding device for eliminating arch defect on railway sleeper - Google Patents

Abstract

The invention discloses a milling and grinding device for eliminating arch faults on a railway sleeper, which comprises a processing cutter head for milling and grinding the sleeper, a cutter head rotation driving device for driving the processing cutter head to operate and a cutter head movement driving mechanism for driving the processing cutter head to move. After the structure is adopted, the processing tool bit is respectively moved to the two sleepers in the same row through the tool bit moving driving mechanism and carries out tool setting, and the tool bit rotating driving device drives the processing tool bit to rotate so as to carry out milling processing on the profile surface of the sleeper. Compared with the prior art, the automatic processing machine has the advantages that the mechanical automatic processing replaces the existing manual processing, the processing is more convenient, and the labor cost is reduced; in addition, the invention can simultaneously process a plurality of sleepers, thereby improving the milling efficiency and the milling precision of the sleepers.

Description

Milling and grinding device for eliminating arch defect on railway sleeper

Technical Field

The invention relates to the technical field of railway sleeper milling and grinding devices, in particular to a milling and grinding device for eliminating arch faults of railway sleepers.

Background

The sleeper is one of railway fittings and mainly used for supporting a steel rail, maintaining the position of the steel rail and transmitting the huge pressure transmitted by the steel rail to a track bed. Among the existing railway tracks, especially high-speed rails are mostly ballastless tracks, the smoothness is good, and the stability is high. The sleeper on the ballastless track is made of reinforced concrete materials, and has higher stability and longer service life.

In practical situations, the geology is arched upwards due to stress changes, and the railway track is subjected to an uparching disease. Since railway tracks are sensitive to track reference heights, the horizontal height difference per kilometer needs to be controlled within 2 mm. Thus, small changes in the geological structure, which accumulate over time, easily exceed this limit height difference. This variation is even more pronounced, particularly in long tunnels. As long as the height difference exceeds the limit, the running speed of the high-speed rail needs to be reduced, and the running efficiency and the running safety are greatly influenced.

In order to solve the problems, in the prior art, a manual mode is mostly adopted, a working tool is used for milling and grinding the profile surface of a sleeper to sink a steel rail, and the installation reference height of the steel rail is reduced, so that the phenomenon that the railway track is arched up is prevented. This method requires very high labor costs and is extremely inefficient; china has long railway mileage, and more places with upwarp diseases appear, so that a set of automatic and efficient equipment is urgently needed to solve the problem.

In view of the above, the applicant has made an intensive study to solve the above problems and has made the present invention.

Disclosure of Invention

The invention mainly aims to provide a milling and grinding device for eliminating crown defects on railway sleepers, which sinks a steel rail by cutting and milling the profile surface of the sleeper, readjusts the horizontal reference of a steel rail line, ensures the smoothness of the line, eliminates crown defects, and further ensures the running speed and stability of the railway line.

In order to achieve the above purpose, the solution of the invention is:

a milling and grinding device for eliminating the problem of arching of a railway sleeper comprises a milling cutter head for milling and grinding the sleeper, a cutter head rotation driving device for driving the milling cutter head to operate, and a cutter head movement driving mechanism for driving the milling cutter head to move.

Further, still including removing the frame, tool bit removes actuating mechanism and includes the longitudinal movement drive arrangement that the drive processing tool bit removed along the fore-and-aft direction that removes the frame, and the lateral shifting drive arrangement that the drive processing tool bit removed along the left and right sides direction that removes the frame to and the vertical removal drive arrangement that the drive processing tool bit carried out elevating movement.

Furthermore, the cutter head moving and driving mechanism further comprises a moving support beam extending along the left and right directions of the moving rack, the two ends of the moving support beam are connected with the left and right sides of the moving rack in a sliding mode, and the power output end of the longitudinal moving driving device is connected with the moving support beam.

Furthermore, the longitudinal movement driving device comprises a first motor and a first screw rod, the first motor is arranged on the movable rack, and a power output end of the first motor is connected with the first screw rod; the first screw rod is horizontally arranged and in threaded connection with the movable supporting beam, and the first screw rod is vertically arranged with the movable supporting beam.

Furthermore, the left side and the right side of the movable rack are also provided with first guide slide rails, the first guide slide rails extend along the front-back direction of the movable rack, and the two ends of the movable support beam are provided with first guide sliding chutes matched with the first guide slide rails for sliding.

Further, the cutter head moving driving mechanism further comprises a bearing frame, the bearing frame is sleeved on the moving support beam and is in sliding connection with the moving support beam, the transverse moving driving device is arranged on the moving support beam, and the power output end of the transverse moving driving device is connected with the moving support beam.

Furthermore, a second guide slide rail arranged along the extending direction of the movable support beam is further arranged on the movable support beam, and a second guide sliding groove matched with the second guide slide rail to slide is arranged on the bearing frame.

Furthermore, a plurality of guide pulleys are arranged on the bearing frame. The guide pulley is rotatably connected with the bearing frame, and the outer circumferential surface of the guide pulley is attached to the movable support beam and rolls.

Furthermore, the transverse movement driving device comprises a second motor and a second screw rod, the power output end of the second motor is in transmission connection with the second screw rod, the extending direction of the second screw rod is parallel to the extending direction of the movable supporting beam, and a thread sleeve in threaded fit with the second screw rod is arranged on the bearing frame.

Further, the tool bit moving driving mechanism further comprises an installation frame, the vertical moving driving device is connected to the installation frame, a power output end of the vertical moving driving device is connected to the bearing frame, and the machining tool bit and the tool bit rotating driving device are arranged on the installation frame.

Further, vertical mobile drive arrangement includes the third motor, transmission lead screw and two third lead screws, transmission lead screw level sets up, the vertical setting of third lead screw, the power take off end and the transmission lead screw transmission of third motor are connected, the both ends and the third lead screw transmission of transmission lead screw are connected, both sides correspond and are equipped with the thread piece around the bearing frame, third lead screw and thread piece threaded connection.

Furthermore, a supporting cylinder body is further arranged on the bearing frame, and a power output end of the supporting cylinder body is vertically arranged upwards and connected with the mounting frame.

Further, the supporting cylinder body is a hydraulic cylinder.

Furthermore, the mounting frame is also provided with a plurality of vertically arranged frame guide pillars, a plurality of frame guide sleeves are arranged on the bearing frame corresponding to the frame guide pillars, and the frame guide pillars extend into the frame guide sleeves and are in sliding connection.

Further, the installation frame includes the link, rotating turret and slewing mechanism, the processing tool bit with the rotating turret rotates to be connected, tool bit rotation drive device establishes on the rotating turret, be equipped with the rotation main shaft on the link, the rotating turret is equipped with the first rotation through-hole that supplies the rotation main shaft to pass, the slewing mechanism drive the rotating turret rotates around the relative link of rotation main shaft.

Further, slewing mechanism includes the cam, the fourth motor, the fourth lead screw to and the screw thread turning block, cam and rotating turret fixed connection, the cam has the connecting portion of being connected with the rotating turret, connecting portion be equipped with rotating spindle complex second rotation through-hole, connecting portion are equipped with to the convex bellying of connecting portion lateral surface, the screw thread turning block rotates with the bellying to be connected, the fourth motor is established on the link to the output and the fourth lead screw of fourth motor are connected, fourth lead screw level set up and with screw thread turning block threaded connection.

Furthermore, the protruding portion is provided with a third rotating through hole, the thread rotating block is provided with a rotating convex shaft protruding outwards, and the rotating convex shaft is embedded into the third rotating through hole and connected in a rotating mode.

Furthermore, a plurality of strip-shaped arc-shaped holes which use the rotating main shaft as the circle center are further formed in the rotating frame, a plurality of guide limiting screws are arranged on the connecting frame, and the guide limiting screws penetrate through the strip-shaped arc-shaped holes and are locked with the connecting frame.

Furthermore, arc plates protruding outwards are further arranged on two sides of the rotating frame, two sides of the connecting frame are provided with the abutting die heads, the piston rods of the abutting oil cylinders are provided with the abutting die heads, the abutting oil cylinders drive the abutting die heads to abut against or keep away from the arc plates, and arc grooves for matching and attaching the arc plates are formed in the side faces of the abutting die heads.

Further, the processing cutter head is a cutting cutter head.

Further, the processing tool bit is a grinding tool bit.

Further, be equipped with on the removal frame with sleeper complex adjust the mechanism well, adjust well the mechanism and include that the multiunit corresponds the clamping jaw group of adjusting well that sets up along the fore-and-aft direction of removing the frame, each adjust well clamping jaw group and include that two symmetries set up the clamping jaw of adjusting well in the removal frame left and right sides, adjust well clamping jaw and sleeper cooperation and be connected.

Furthermore, the aligning mechanism comprises two groups of aligning clamping jaw groups, the movable rack comprises a first rack rod arranged at the front end of the movable rack and a second rack rod arranged at the rear end of the movable rack, and the first rack rod and the second rack rod are respectively connected with one group of aligning clamping jaw group.

Further, adjust the clamping jaw well and include die head and jacking drive arrangement, jacking drive arrangement establishes on removing the frame, jacking drive arrangement's power take off end with the die head is connected and drive the die head and is vertical elevating movement, the below of die head is equipped with the fixed slot, the fixed slot is connected with the sleeper cooperation.

Furthermore, the fixed slot has first arcwall face and the second arcwall face with the laminating of sleeper upper surface, first arcwall face is established at the die head and is close to the inboard one end of removal frame to first arcwall face extends and upwards arches gradually by the die head outside to die head middle part direction, the one end that the die head is close to the removal frame outside is established to the second arcwall face, the second arcwall face extends and upwards arches gradually by the die head outside to die head middle part direction.

Furthermore, one end, close to the inner side of the movable rack, below the die head is provided with a horizontal binding surface, and the horizontal binding surface is connected with the first arc-shaped surface.

Furthermore, the power output end of the jacking driving device is rotatably connected with the die head.

Furthermore, the aligning clamping jaw further comprises a die head rotating shaft and an adapter, the upper end of the adapter is connected with the power output end of the jacking driving device, the lower end of the adapter is provided with a through hole, and the die head rotating shaft penetrates through the through hole and is rotatably connected with the adapter; the upper surface of die head is equipped with the mounting groove, be equipped with the connecting hole that runs through the die head setting on the lateral wall of the left and right sides of mounting groove, the both ends of die head axis of rotation are connected with the connecting hole rotation respectively.

The die head further comprises a die head fixing block which is connected in the mounting groove in an embedded mode, and the lower surface of the die head fixing block is provided with an upper matching groove for enabling a die head rotating shaft to be matched in an embedded mode and an abdicating hole for enabling the adaptor to penetrate through; the tank bottom of mounting groove is equipped with the lower cooperation groove that supplies die head axis of rotation embedding complex to and the groove of stepping down that supplies the adaptor embedding.

The alignment clamping jaw further comprises a connecting block and a die head guide column, the connecting block is connected below the movable rack, and the connecting block is provided with a first guide through hole which vertically penetrates through the connecting block and second guide through holes which are arranged on the left side and the right side of the first guide through hole and symmetrically arranged relative to the first guide through hole; the power output end of the jacking driving device penetrates through the first guide through hole, the upper end of the die head guide post extends into the second guide through hole to be connected in a sliding mode, and the lower end of the die head guide post is connected with the die head in a rotating mode.

Further, jacking drive arrangement includes jacking servo motor, jacking lead screw and jacking screw-nut, jacking servo motor's output shaft is connected with the jacking lead screw, jacking screw-nut wears to establish in the first direction through-hole.

Further, the movable rack still includes moving mechanism, moving mechanism includes a plurality of automatic gyro wheel mechanisms, automatic gyro wheel mechanism includes first gyro wheel, first gyro wheel mount pad, first gyro wheel pivot and gyro wheel motor, first gyro wheel mount pad is installed in the below of moving the frame, first gyro wheel mount pad is equipped with two and controls the first gyro wheel mounting panel that corresponds and vertical setting, first gyro wheel mounting panel is equipped with first gyro wheel pivot connecting hole, first gyro wheel pivot stretches into first gyro wheel pivot connecting hole internal rotation and connects, first gyro wheel cover is established in first gyro wheel pivot and is established between two first gyro wheel mounting panels, the gyro wheel motor is established on first gyro wheel mounting panel to the power take off end and the first gyro wheel pivot of gyro wheel motor are connected.

Further, the moving mechanism comprises four automatic roller mechanisms, the moving rack is a rectangular frame, roller connecting feet which extend downwards are arranged below four top corners of the moving rack, and the automatic roller mechanisms are arranged on the roller connecting feet.

Further, the both sides of removing the frame still are equipped with the guiding mechanism who leads to removing the frame, guiding mechanism includes and rotates the direction mounting bracket and the level setting of being connected and rotate the direction gyro wheel of connection at the direction mounting bracket lower extreme with removing the frame.

Further, the guide mounting frame comprises a guide bottom plate and two guide side plates, and the guide bottom plate is vertically connected with the lower ends of the two guide side plates; the guide rollers and the guide bottom plate are arranged in parallel and are rotatably connected.

Further, the direction mounting bracket is still including establishing second gyro wheel mount pad and the second gyro wheel pivot on the direction bottom plate, the second gyro wheel mount pad has the second gyro wheel mounting panel with direction bottom plate parallel arrangement, the second gyro wheel mounting panel is equipped with second gyro wheel pivot connecting hole, the both ends of second gyro wheel pivot stretch into second gyro wheel pivot connecting hole internal rotation and connect, the direction gyro wheel cover is established in the second gyro wheel pivot and is established between two second gyro wheel mounting panels.

Further, the direction mounting bracket still includes keysets and connecting plate, keysets and movable rack fixed connection, be equipped with first switching through-hole on the keysets, be equipped with the switching axle in the first switching through-hole, the connecting plate is established in the top of direction mounting bracket, be equipped with second switching through-hole on the connecting plate, second switching through-hole rotates with the switching axle cooperation and is connected.

Furthermore, a first fixing lug is arranged below the movable rack, a second fixing lug is arranged on the guide side plate, the first fixing lug and the second fixing lug are arranged in parallel, and a fixing hole which is correspondingly formed in the first fixing lug and the second fixing lug is formed in the second fixing lug.

Further, the direction mounting bracket still includes the fixed plate, the fixed plate is connected between two direction curb plates to the upper end and the connecting plate of fixed plate are connected and the upper surface of lower extreme and second gyro wheel mount pad support.

Furthermore, the guide mechanism further comprises a side abutting device, the side abutting device comprises an abutting mounting seat, an abutting pressing plate and an abutting driving device for driving the abutting pressing plate to do horizontal movement, the abutting mounting seat is connected to the guide side plate, the abutting driving device is horizontally arranged on the abutting mounting seat, the abutting pressing plate is vertically arranged, the abutting pressing plate and the guide side plate are vertically arranged, and the power output end of the abutting driving device is connected with the abutting pressing plate.

Furthermore, the propping driving device is an oil cylinder.

After the structure is adopted, the invention is provided with the aligning mechanism for adjusting the orientation of the movable rack, the aligning mechanism is provided with two groups of aligning clamping jaw groups which correspond to each other front and back, each group of aligning clamping jaw group is provided with two aligning clamping jaws which are arranged side by side, and the two aligning clamping jaws in the same group of aligning clamping jaw groups are respectively fixed with the two sleepers in the same row on the track in a mutually clamping way, so that the front and back orientation of the movable rack is adjusted to be parallel to the extending direction of the track. And then the four jacking driving devices respectively jack up the movable rack to enable the movable rack to be adjusted to be parallel to the reference horizontal plane, and then the abutting driving devices drive the abutting pressing plates to be attached and abutted to the side walls of the track bed, so that the movable rack is fixed on the track bed. And finally, the machining mechanisms arranged on the left side and the right side of the movable rack move to two sleepers in the same row respectively through the tool bit moving driving mechanisms and perform tool setting, and the tool bit rotating driving devices drive the machining tool bits to rotate so as to perform milling machining on the profile surfaces of the sleepers.

Compared with the prior art, the invention has the beneficial effects that:

firstly, the automatic sleeper milling machine replaces the existing manual grinding machine by mechanical automatic milling machine, is more convenient and faster, greatly reduces the labor cost, and can simultaneously machine a plurality of sleepers, thereby improving the milling efficiency and the milling precision of the sleepers.

Secondly, the milling machine is provided with a cutter head movement driving mechanism for driving the machining cutter heads to move, and the cutter head movement driving mechanism can simultaneously drive the left machining cutter head and the right machining cutter head to move along the front and back directions of the movable rack, so that the two machining cutter heads can simultaneously mill and grind two sleepers in the same row after the cutters are adjusted, and the milling efficiency is improved; in addition, the tool bit moving and driving mechanism can also drive the machining tool bits on two sides to move up and down and move left and right, so that the two machining tool bits can independently set tools respectively, the tool setting operation of the machining tool bits is more flexible, and the grinding precision is improved.

Thirdly, the mounting frame is also provided with a rotating mechanism, and the rotating mechanism can drive the rotating shaft of the machining tool bit to deflect on a vertical plane when rotating, and adjust the angle between the rotating shaft of the machining tool bit and the horizontal base plane, so that the inclination angle of the machining surface of the machining tool bit is adjusted, the machining surface of the machining tool bit can be better attached to the profile surface of the sleeper for tool setting, and the milling precision of the milling machine is further improved.

Fourthly, the processing tool bit can be a cutting tool bit or a grinding tool bit, so that the processing tool bit is more flexible to use and has stronger applicability. When the sleeper profile cutting machine is used, the cutting tool bit is adopted firstly, and the surface of the sleeper profile can be rapidly cut and machined, so that the grinding efficiency is accelerated. And then the grinding tool bit is replaced, the profile surface of the sleeper is further refined, the milling precision is improved, meanwhile, the surface roughness of the profile surface is reduced, the milling quality is improved, and the sleeper is conveniently installed and matched with the rail.

And the front and rear groups of aligning clamping jaw sets are respectively matched with the front and rear rows of aligning sleepers on the track, so that the front and rear directions of the movable rack are aligned and adjusted, the front and rear directions of the movable rack are parallel to the extending direction of the track as far as possible, a machining cutter head walking along the front and rear directions of the movable rack on the movable rack can conveniently perform cutter setting and front and rear cutter feeding milling on the contour surface of the sleeper, and the cutter setting and milling accuracy is enhanced.

The track bed is provided with a moving mechanism, the moving mechanism is provided with a plurality of groups of first rollers, and the first rollers can be driven to rotate by a roller motor to drive the moving rack to slide on the track bed, so that the track bed is more time-saving and labor-saving in moving; in addition, the two sides of the movable rack are also provided with the guide mechanisms, and the guide mechanisms are provided with the guide rollers which roll in a matched manner with the side wall of the track bed, so that the movable rack is more stable in the moving process, and the movable rack is prevented from falling off the track bed; in addition, the guide mechanism is also provided with a propping pressing plate, and after the moving rack is aligned, the propping pressing plate props against the side walls of two sides of the track bed, so that the moving rack is fixed, the moving and the deviation of the moving rack in the milling and grinding process of the processing mechanism are prevented, and the processing precision of the processing mechanism is improved.

Drawings

Fig. 1 is a perspective view of the external structure of the present invention.

Fig. 2 is a perspective view of another external structure of the present invention.

Fig. 3 is a simplified schematic diagram of the present invention for adjusting the orientation of the movable frame on a curved track.

Fig. 4 is a simplified schematic diagram of the present invention for adjusting the mobile frame to a horizontal position on the ground.

Figure 5 is a perspective view of the alignment jaw profile.

Figure 6 is a cross-sectional view of the alignment jaw.

Fig. 7 is a perspective view of the outline structure of the moving mechanism.

Fig. 8 is a schematic sectional structure view of the moving mechanism.

Fig. 9 is a perspective view of the outer configuration of the guide mechanism.

Fig. 10 is a schematic sectional view of the guide mechanism.

Fig. 11 is a perspective view of the outer configuration of the processing mechanism.

Fig. 12 is a perspective view showing another external configuration of the processing mechanism.

Fig. 13 is a schematic sectional structure view of the processing mechanism.

Detailed Description

In order to further explain the technical solution of the present invention, the present invention is explained in detail by the following specific examples.

In the figure, coordinate axes X, Y, Z respectively indicate the front-rear direction, the left-right direction, and the up-down direction of the present invention, and coordinate axis X indicates the front direction, coordinate axis Y indicates the right direction, coordinate axis Z indicates the up direction, and the intersection of coordinate axes X, Y, Z is point O.

As shown in fig. 1 to 13, a milling device for eliminating crown defects on railroad ties comprises a milling cutter head 21 for milling ties, a cutter head rotation driving device 22 for driving the milling cutter head to operate, and a cutter head movement driving mechanism for driving the milling cutter head to move. Still including moving frame 1, moving frame 1 is rectangular frame structure, including establishing the first rack pole 11 in moving frame 1 the place ahead, establishing the second rack pole 12 in moving frame 1 rear, connects at the left third rack pole 13 of first rack pole 11 and second rack pole 12 and connects at the fourth rack pole 14 on first rack pole 11 and second rack pole 12 right side. The tool bit movement driving mechanism includes a longitudinal movement driving device 231 for driving the machining tool bit to move in the front-rear direction of the moving frame, a lateral movement driving device 232 for driving the machining tool bit to move in the left-right direction of the moving frame, and a vertical movement driving device 233 for driving the machining tool bit to perform an elevating motion.

With the above configuration, the movable frame 1 moves on the track bed 94 and is then fixed to the sleepers 91, thereby positioning the movable frame 1. Then, the tool bit moving driving mechanism drives the machining tool bit 21 to approach the sleeper 91 for tool setting, and then the tool bit rotating driving mechanism 22 drives the left and right machining tool bits 21 to respectively mill and grind the left and right sleepers 91 in the same row.

Compared with the prior art, the automatic milling and grinding machine replaces the existing manual grinding and grinding, is more convenient and quicker, greatly reduces the labor cost, and simultaneously improves the milling and grinding efficiency and the milling and grinding precision of the sleeper 91.

Preferably, the tool bit movement driving mechanism includes a longitudinal movement driving device 23 that drives the machining tool bit 21 to move in the front-rear direction of the moving frame 1, a lateral movement driving device 24 that drives the machining tool bit 21 to move in the left-right direction of the moving frame 1, and a vertical movement driving device 25 that drives the machining tool bit 21 to perform an elevating motion. The longitudinal movement driving device 23 drives the machining tool bit 21 to move along the X-axis direction, so that the machining tool bit 21 can be adjusted to be close to the sleeper 91, and the sleeper 91 can be milled. The transverse movement driving device 24 and the vertical movement driving device 25 respectively drive the machining tool bit 21 to move along the Y-axis direction and the Z-axis direction, so that the relative position of the machining tool bit 21 and the profile surface 92 of the sleeper 91 is adjusted, and tool setting of the machining tool bit 21 is facilitated.

Preferably, the tool bit moving driving mechanism further includes a moving support beam 26 extending along the left and right direction of the moving frame 1, two ends of the moving support beam 26 are slidably connected to the left and right sides of the moving frame 1, the two machining tool bits 21 are respectively connected to the left and right ends of the moving support beam 26, and the power output end of the longitudinal moving driving device 23 is connected to the moving support beam 26. After adopting the above structure, the longitudinal movement driving device 23 drives the movable support beam 26 to move along the X-axis direction on the frame, so as to drive the two machining tool bits 21 to move simultaneously, and the two machining tool bits 21 can simultaneously mill and grind two sleepers 91 in the same row after respectively setting the tool.

More preferably, in this embodiment, the longitudinal movement driving device 23 includes a first motor 231 and a first lead screw 232, the first motor 231 is disposed on the moving frame 1, and a power output end of the first motor 231 is connected to the first lead screw 232; the first lead screw 232 is horizontally disposed and screwed to the movable corbel 26, and the first lead screw 232 is vertically disposed to the movable corbel 26. With this structure, the first motor 231 drives the first lead screw 232 to rotate, thereby driving the movable support beam 26 to move in the X-axis direction; the motor and the screw rod are adopted for transmission, so that the transmission efficiency is high, the precision is high, the noise is low, and the reciprocating transmission is suitable for high-speed reciprocating transmission.

Preferably, in order to make the movable beam 26 more stable during movement, the left and right sides of the movable frame 1 are further provided with first guide rails 18 extending along the X-axis direction, the extending direction of the first guide rails 18 is parallel to the extending direction of the first lead screw 232, and two ends of the movable beam 26 are provided with first guide chutes 261 sliding in cooperation with the first guide rails 18.

Preferably, the tool bit moving driving mechanism further includes a bearing frame 27, the bearing frame 27 is sleeved on the moving support beam 26 and is connected with the moving support beam 26 in a sliding manner, the transverse moving driving device 24 is arranged at a side of the moving support beam 26, and a power output end of the transverse moving driving device 24 is connected with the moving support beam 26.

Preferably, in order to make the carrying frame 27 move more stably, the movable supporting beam 26 is further provided with a second guiding sliding rail 262 arranged along the extending direction of the movable supporting beam 26, and the carrying frame 27 is provided with a second guiding sliding groove 271 sliding in cooperation with the second guiding sliding rail 262.

Preferably, a plurality of guide pulleys 272 are further provided on the carrying frame 27. The guide pulley 272 is rotatably coupled to the carrier frame 27, and the outer circumferential surface of the guide pulley 272 is engaged with and rolled by the movable beam 26. With this structure, the movement of the carrier frame 27 on the movable corbel 26 is made more stable.

More preferably, in this embodiment, the lateral movement driving device 24 includes a second motor 241 and a second lead screw 242, a power output end of the second motor 241 is in transmission connection with the second lead screw 242, the second lead screw 242 extends along the Y-axis direction, a threaded sleeve in threaded fit with the second lead screw 242 is disposed on the carrying frame 27, and with this structure, the second motor 241 drives the second lead screw 242 to rotate, so as to drive the carrying frame 27 to move along the Y-axis direction; the motor and the screw rod are adopted for transmission, so that the transmission efficiency is high, the precision is high, the noise is low, and the reciprocating transmission is suitable for high-speed reciprocating transmission.

Preferably, the cutter head movement driving mechanism further comprises a mounting frame 28, the vertical movement driving device 25 is connected to the mounting frame 28, the power output end of the vertical movement driving device 25 is connected to the carrying frame 27, and the machining cutter head 21 and the cutter head rotation driving device 22 are arranged on the mounting frame 28. After adopting the above structure, the vertical movement driving device 25 drives the mounting frame 28 to perform vertical lifting movement relative to the bearing frame 27, so as to drive the machining tool bit 21 to perform lifting movement in the Z-axis direction, adjust the height position of the machining tool bit 21, and further facilitate the fitting and tool setting of the contour surface 92 of the machining tool bit 21 and the sleeper 91.

More preferably, in this embodiment, the vertical movement driving device 25 includes a third motor 251, a transmission screw rod 252 and two third screw rods 253, the transmission screw rod 252 is horizontally disposed along the X-axis direction, the third screw rod 253 is vertically disposed, a power output end of the third motor 251 is in transmission connection with the transmission screw rod 252, two ends of the transmission screw rod 252 are in transmission connection with the third screw rod 253, and a specific connection manner may be in transmission connection with a speed reducer. The front and rear sides of the carrying frame 27 are correspondingly provided with thread blocks 273, and the third screw 253 is in threaded connection with the thread blocks 273. After the structure is adopted, the third motor 251 drives the transmission screw rod 252 to rotate, and the transmission screw rod 252 drives the third screw rods 253 at the two ends to rotate in the same direction, so that the third screw rods 253 ascend or descend relative to the thread blocks 273, and the installation frame 28 is jacked up or pulled down, so that the installation frame 28 moves along the Z-axis direction. And the third lead screw 253 drives the mounting frame 28 from the front side and the rear side simultaneously, so that the mounting frame 28 is lifted more stably, and the front and rear stress is more balanced.

Preferably, since the weight of the machining bit 21 and the bit rotary drive device 22 is heavy, the bearing force of the third motor 251 and the third lead screw 253 cannot fully bear the weight of the machining bit 21 and the bit rotary drive device 22, and the mounting frame 28 may slip down due to insufficient support during cutting. The front and rear sides of the carrying frame 27 are therefore also provided with support cylinders 274, the power take-off of the support cylinders 274 being arranged vertically upwards and connected to the mounting frame 28. With this structure, the front and rear sides of the mounting frame 28 are supported by the support cylinder 274, and the support force against the mounting frame 28 is increased.

Preferably, the supporting cylinder 274 is a hydraulic cylinder, and the hydraulic cylinder has a larger output bearing capacity, stronger stability and is convenient to maintain.

Preferably, the mounting frame 28 is further provided with a plurality of vertically arranged frame guide posts 281, and the carrying frame 27 is provided with a plurality of frame guide sleeves 275 corresponding to the frame guide posts 281, wherein the frame guide posts 281 extend into the frame guide sleeves 275 for sliding connection. Specifically, the mounting frame 28 is provided with two guide pillar mounting plates 282 which are correspondingly arranged up and down, and the guide pillar mounting plates 282 are rectangular structures; the number of the frame guide pillars 281 is four, the upper end and the lower end of the frame guide pillars 281 are connected to the guide pillar mounting plate 282, and the four frame guide pillars 281 are respectively connected to four corners of the guide pillar mounting plate 282, so that each frame guide pillar 281 is more uniformly stressed. By adopting the structure, the stability of the lifting motion of the mounting frame 28 is further improved.

Preferably, in order to set the machining tool bit 21 and the sleeper 91 with a precise tool, the machining tool bit 21 needs to be rotated on the plane of the coordinate axis YOZ, and the angle between the rotation axis of the machining tool bit 21 and the Y axis is adjusted, so that the angle between the machining surface of the machining tool bit 21 and the profile surface 92 is adjusted, and the machining surface can be closely attached to the profile surface 92. In order to solve the above problem, the mounting frame 28 includes a connecting frame 283, a rotating frame 284 and a rotating mechanism, the rotating frame 284 is provided with two connecting arms 2842, both ends of the rotating shaft of the machining tool bit 21 are rotatably connected to the two connecting arms 2842, respectively, and the tool bit rotation driving device 22 is provided above the rotating frame 284. The connecting frame 283 is provided with a fixedly connected rotating main shaft 285, the rotating frame 284 is provided with a first rotating through hole 2841 penetrating through the rotating main shaft 285, the rotating mechanism is arranged on the connecting frame 283 and drives the rotating frame 284 to rotate around the rotating main shaft 285 relative to the connecting frame 283 to drive the machining tool bit 21 to rotate on a YOZ plane of a coordinate axis, so that an included angle between a rotating shaft of the machining tool bit 21 and the Y axis is adjusted, the machining tool bit 21 can be more attached to the profile surface 92 of the sleeper 91, and tool setting is more accurate.

Preferably, the rotating mechanism comprises a cam 286, a fourth motor 287, a fourth screw rod 288, and a thread rotating block 289, the cam 286 is fixedly connected with the rotating frame 284, the cam 286 has a connecting portion connected with the rotating frame 284, the connecting portion is provided with a second rotating through hole 2861 which is matched and rotatably connected with the rotating main shaft 285, the connecting portion is provided with a convex portion protruding towards the outer side surface of the connecting portion, and the thread rotating block 289 is rotatably connected with the convex portion. The fourth motor 287 is horizontally disposed on the coupling frame 283, and an output end of the fourth motor 287 is coupled to a fourth lead screw 288, and the fourth lead screw 288 is horizontally disposed and screw-coupled to the screw block 289. With the above structure, before rotation, the rotation shaft of the processing tool bit 21 is in a horizontal position and parallel to the Y axis, and when rotation is performed, the fourth motor 287 drives the fourth screw rod 288 to rotate, so that the screw rotation block 289 moves horizontally along the fourth screw rod 288. When the thread turning block 289 moves rightwards along the fourth screw rod 288, the driving cam 286 rotates anticlockwise to drive the turning frame 284 to rotate anticlockwise relative to the connecting frame 283, an included angle is formed between a rotating shaft of the machining tool bit 21 and the Y axis, and the height of the right end of the rotating shaft is lower than that of the left end of the rotating shaft; when the screw rotating block 289 moves leftwards along the fourth screw rod 288, the driving cam 286 rotates clockwise, so as to drive the rotating frame 284 to rotate clockwise relative to the connecting frame 283, at this time, an included angle is formed between the rotating shaft of the machining tool bit 21 and the Y axis, and the height of the right end of the rotating shaft is higher than that of the left end of the rotating shaft.

Preferably, the bellying is equipped with third rotation through-hole 2862, and screw rotating block 289 is equipped with outside bellied rotation protruding axle 2891, rotates protruding axle 2891 embedding third rotation through-hole 2862 internal rotation and connects, adopts this structure, and screw rotating block 289's connection structure is simple to make things convenient for the dismouting.

Preferably, the rotating frame 284 is further provided with a plurality of bar-shaped arc holes 2843 using the rotating main shaft 285 as a center, the connecting frame 283 is provided with a plurality of guiding limit screws 2831, and the guiding limit screws 2831 penetrate through the bar-shaped arc holes 2843 and are locked with the connecting frame 283. Adopt direction stop screw 2831 and the cooperation of bar arc hole 2843, play the guide effect to rotating turret 284, make rotating turret 284 rotate more steadily. Meanwhile, when the guide limit screw 2831 abuts against the side wall of the bar-shaped arc hole 2843, the rotating frame 284 stops rotating, and the rotating frame 284 is limited.

Preferably, after the rotating frame 284 is adjusted in a rotating manner, in order to avoid the rotating frame 284 from deflecting during milling and grinding, arc plates 2844 protruding outwards are further arranged on two sides of the rotating frame 284, abutting cylinders 2832 are arranged on two sides of the connecting frame 283, an abutting die head 2833 is arranged on a piston rod of the abutting cylinder 2832, the abutting cylinder 2832 drives the abutting die head 2833 to abut against or keep away from the arc plates, and arc grooves for matching and attaching the arc plates 2844 are formed in the side surfaces of the abutting die head 2833. After the structure is adopted, before the rotating frame 284 rotates and is adjusted, the abutting oil cylinder 2832 drives the abutting die head 2833 to be attached to the arc-shaped plate 2844, so that the rotating frame 284 can rotate conveniently and plays a role in guiding; after the rotating frame 284 is adjusted in a rotating manner, the abutting oil cylinder 2832 drives the abutting die head 2833 to abut against the arc-shaped plate 2844, so that the rotating frame 284 is further fixed, and the rotating frame 284 is prevented from deflecting. And the peripheral face of arc 2844 adopts the arc structure with the tank bottom surface of arc, no matter how many angles rotating turret 284 rotated, the arc all the time can closely laminate with arc 2844.

Preferably, the machining bit 21 is a cutting bit, and can perform rapid cutting machining on the surface of the profile surface 92 of the sleeper 91 to increase grinding efficiency.

Preferably, the processing tool bit 21 is a grinding tool bit, and can further refine the profile surface 92 of the sleeper 91, so that the milling precision is improved, meanwhile, the surface roughness of the profile surface 92 is reduced, the milling quality is improved, and the sleeper 91 is conveniently installed and matched with a rail.

Preferably, be equipped with on the mobile frame 1 and adjust mechanism 3 well with sleeper 91 complex, adjust mechanism 3 well and include that the multiunit corresponds the clamping jaw group of adjusting well that sets up along the fore-and-aft direction of mobile frame 1, each is adjusted well clamping jaw group and is included two bilateral symmetry settings in adjusting the clamping jaw 31 well of mobile frame 1 both sides, and clamping jaw 31 is adjusted well with two sleepers 91 cooperation fixed connection in the same horizontal row respectively to two in the same group is adjusted well to clamping jaw group.

Preferably, in this embodiment, the alignment mechanism 3 includes two sets of alignment clamping jaw sets, one set of alignment clamping jaw sets is mounted at the lower end of the first frame rod 11, and the other set of alignment clamping jaw sets is mounted at the lower end of the second frame rod 12.

After adopting above-mentioned structure, arrange along orbital extending direction and be equipped with multirow sleeper group, every row of sleeper group includes two sleepers 91 that bilateral symmetry set up. When the movable rack 1 is aligned, if the rail is a linear rail, the sleeper groups on the rail are arranged along the linear direction, two groups of sleeper groups arranged in the front and back are selected as positioning sleeper groups, and the front and back groups of aligning clamping jaw groups are respectively matched with the front and back groups of the positive sleeper groups on the rail, so that the movable rack 1 is fixed and positioned, and the front and back directions of the movable rack 1 are parallel to the extending direction of the linear rail.

As shown in fig. 3, in an actual working environment, the rails are not all straight rails, but curved rails may also occur, and the sleepers 91 are arranged along the extended curve of the rails, so that there is a very small angular offset between the front sleepers 91 and the rear sleepers 91. When the movable rack 1 is aligned, the front and rear groups of aligning clamping jaw sets are respectively matched and positioned with the front and rear groups of aligning sleeper sets, the structure of the movable rack 1 is a rectangular frame structure and has certain metal elasticity, the movable rack 1 can deform in a small amplitude, so that the front end of the movable rack 1 deflects towards the bending direction of a track, at the moment, the front and rear directions of the movable rack 1 deflect towards the bending direction of the track, the front and rear directions of the movable rack 1 are attached to the bending direction of the track as much as possible, a machining tool bit 21 walking along the front and rear directions of the movable rack 1 on the movable rack 1 and a profile 92 of the deflected sleeper 91 can conveniently perform tool setting and front and rear feeding milling and grinding on the sleeper 91, and the accuracy of tool setting and milling and grinding is enhanced.

Preferably, the aligning clamping jaw 31 comprises a die head 32 and a jacking driving device 33, the jacking driving device 33 is arranged on the movable rack 1, a power output end of the jacking driving device 33 is connected with the die head 32 and drives the die head 32 to do vertical lifting motion, a fixing groove 321 is arranged below the die head 32, and the fixing groove 321 is connected with the sleeper 91 in a matching manner. After the structure is adopted, when the movable machine frame is moved, the jacking driving device 33 drives the die head 32 to ascend and recover, so that the movable machine frame 1 can conveniently move on the track bed 94, and when the movable machine frame 1 is fixed, the jacking driving device 33 drives the die head 32 to descend and enables the fixing groove 321 of the die head 32 to be matched with the sleeper 91. In addition, as shown in fig. 4, S in the figure represents a horizontal reference plane, and if the rail is in an upwarp defect, the ground is subjected to stress variation and drives the sleeper 91 to upwarp together, so that the movable frame 1 fixed with the sleeper 91 and the horizontal reference plane are inclined with each other, but the machining tool bit 21 needs to be vertically lifted and lowered with the horizontal reference plane as a horizontal reference to machine the sleeper 91, and thus the movable frame 1 needs to be adjusted to be parallel to the horizontal reference plane. When the jacking driving device 33 drives the die head 32 to be matched and fixed with the sleeper 91, the jacking driving device 33 positioned at the lower end of the rail arching surface can jack the movable rack 1 upwards, so that the movable rack 1 is adjusted to be parallel to the horizontal reference surface.

Preferably, because the left and right sides upper surface of sleeper 91 is the arcwall face, in order to make fixed slot 321 and sleeper 91 cooperation more closely laminate, fixed slot 321 has first arcwall face 322 and the second arcwall face 323 of laminating with sleeper 91 upper surface, first arcwall face 322 is established in the one end that die head 32 is close to the removal frame 1 inboard, and first arcwall face 322 extends and upwards arches gradually to die head 32 middle part direction by the die head 32 outside, the one end that die head 32 is close to the removal frame 1 outside is established to second arcwall face 323, second arcwall face 323 extends and upwards arches gradually to die head 32 middle part direction by the die head 32 outside. When the track is a curved track, the front end of the movable rack 1 inclines and deviates towards the bending direction of the track, so that the fixing groove 321 of the alignment clamping jaw 31 at the front end of the movable rack 1 cannot be completely attached and matched with the upper surface of the sleeper 91, and only the friction force generated by the local attaching surfaces between the first arc-shaped surface 322 and the second arc-shaped surface 323 as well as the upper surface of the sleeper 91 can be relied on to fix the alignment clamping jaw 31 and the sleeper 91, and the first arc-shaped surface 322 and the second arc-shaped surface 323 also have the function of guiding in a smooth manner, so that the fixing groove 321 can slide downwards to be embedded with the sleeper 91 conveniently.

Preferably, sleeper base 93 still is equipped with in sleeper 91's below, the die head 32 below is close to the one end that removes frame 1 inboard and is equipped with horizontal binding face 324, horizontal binding face 324 is connected with first arcwall face 322, when fixed slot 321 and sleeper 91 fixed fit, horizontal binding face 324 and sleeper base 93's upper surface laminating, improve fixed slot 321 and sleeper 91's degree of cooperation, horizontal binding face 324 can produce frictional force with sleeper base 93's upper surface simultaneously, thereby prevent die head 32 and deflect, make die head 32 and sleeper 91 cooperation more firm.

Preferably, when the movable frame 1 is adjusted to be parallel to the horizontal reference surface, the jacking driving device 33 will be adjusted to be in position along with the movable frame 1, and the die head 32 and the sleeper 91 are fixed and do not move, so that an angle change will occur between the output end of the jacking driving device 33 and the connection part of the die head 32, and therefore, the power output end of the jacking driving device 33 needs to be rotatably connected with the die head 32, and the connection part of the jacking driving device 33 and the die head 32 is prevented from being disconnected due to the angle change.

Preferably, in this embodiment, in order to enable the die head 32 to be rotatably connected with the output end of the jacking driving device 33, the alignment clamping jaw 31 further includes a die head rotating shaft 34 and an adaptor 35, the upper end of the adaptor 35 is connected with the power output end of the jacking driving device 33, the lower end of the adaptor 35 is provided with a through hole, and the die head rotating shaft 34 is inserted into the through hole and rotatably connected with the adaptor 35; the upper surface of the die head 32 is provided with a mounting groove 36, the side walls of the left and right sides of the mounting groove 36 are provided with connecting holes 361 penetrating through the die head 32, and both ends of the die head rotating shaft 34 are rotatably connected with the connecting holes 361, respectively. With the adoption of the structure, in the process of adjusting the movable rack 1, the die head 32 can rotate around the die head rotating shaft 34 by taking the axis of the die head rotating shaft 34 as a center.

More preferably, in order to further fix the die rotating shaft 34, the die 32 further comprises a die fixing block 37 which is connected in the mounting groove 36 in a fitting manner, the lower surface of the die fixing block 37 is provided with an upper fitting groove 371 for the die rotating shaft 34 to be fitted in, and an abdicating hole 372 for the adaptor 35 to pass through; the bottom of the mounting groove 36 is provided with a lower fitting groove 362 for fitting the die rotating shaft 34, and an avoiding groove 363 for fitting the adaptor 35.

Preferably, the aligning clamping jaw 31 further comprises a connecting block 15 and a die head guide column 38, the connecting block 15 is connected below the moving frame 1, the connecting block 15 has a first guide through hole 151 vertically penetrating through the connecting block, and second guide through holes 152 arranged on the left and right sides of the first guide through hole 151 and symmetrically arranged relative to the first guide through hole 151; the power output end of the jacking driving device 33 is arranged through the first guide through hole 151, the upper end of the die head guide column 38 extends into the second guide through hole 152 to be connected in a sliding manner, and the lower end of the die head guide column 38 is connected with the die head 32 in a rotating manner. Specifically, the lower end of the die head guide column 38 is also provided with the adapter 35, and the adapter 35 is rotatably connected with the die head rotating shaft 34, so that the die head guide column 38 and the die head 32 can rotate relatively. With the above structure, the die head 32 is more firmly installed, and is guided by the die head guide post 38, so that the die head 32 is more stable and smooth in the ascending and descending processes, and the die head 32 can be prevented from deflecting in the left and right directions.

Preferably, the jacking driving device 33 includes a jacking servo motor 331, a jacking screw rod 332 and a jacking screw rod nut 333, the jacking servo motor 331 is vertically disposed on the movable frame 1, an output shaft of the jacking servo motor 331 is connected with the jacking screw rod 332, and the jacking screw rod nut 333 is fixed in the first guiding through hole 151 in a penetrating manner. After the structure is adopted, the jacking servo motor 331 drives the jacking screw rod 332 to rotate relative to the jacking screw rod nut 333, so that the die head 32 at the lower end of the jacking screw rod 332 is driven to ascend or descend, and the motor drive is adopted, so that the lifting screw rod mechanism is small in size, light in weight and high in transmission efficiency.

Preferably, the moving rack 1 further includes a moving mechanism 4, the moving mechanism 4 includes a plurality of automatic roller mechanisms, the automatic roller mechanisms include first rollers 41, first roller mounting seats 42, first roller rotating shafts 43 and roller motors 44, the first roller mounting seats 42 are installed below the moving rack 1, the first roller mounting seats 42 are provided with two first roller mounting plates 421 which correspond to each other and are vertically arranged, the first roller mounting plates 421 are provided with first roller rotating shaft connecting holes 422, both ends of the first roller rotating shafts 43 extend into the first roller rotating shaft connecting holes 422 for rotation connection, the first rollers 41 are sleeved on the first roller rotating shafts 43 and are arranged between the two first roller mounting plates 421, the roller motors 44 are arranged on the first roller mounting plates 421, and power output ends of the roller motors 44 are connected with the first roller rotating shafts 43. By adopting the structure, when the track bed is moved, the roller motor 44 drives the first roller rotating shaft 43 to rotate, so as to drive the first roller 41 to rotate, so that the moving rack 1 can move on the track bed 94, and the motor drive is adopted, so that the labor is saved, and the moving rack 1 can move more conveniently and quickly.

More preferably, the moving mechanism 4 further comprises a braking device, the braking device comprises two annular friction plates 45, one annular friction plate 45 is mounted on the first roller rotating shaft 43, the other annular friction plate 45 is mounted on the first roller mounting plate 421 away from one side of the roller motor 44, and in the case of parking or power failure, the spring is pressed tightly, so that the two annular friction plates 45 are in contact with each other to realize braking; when the power is on, the two annular friction plates 45 are separated from each other, so that the first roller 41 can normally run.

Preferably, in this embodiment, moving mechanism 4 includes four automatic roller mechanisms, and moving frame 1 is rectangular frame, and is equipped with the gyro wheel connecting foot 16 that downwardly extending set up below four apex angles of moving frame 1, and automatic roller mechanism installs on gyro wheel connecting foot 16, adopts this structure for automatic roller mechanism installs more firmly. In addition, the moving mechanism 4 is arranged below four vertex angle supporting points of the moving rack 1, so that the stress of each automatic roller mechanism is more uniform, and the moving rack 1 is more stable and balanced when moving.

Preferably, four guiding mechanisms 5 for guiding the moving frame 1 are further disposed on two sides of the moving frame 1, wherein two guiding mechanisms 5 are disposed on the third frame rod 13, and the other two guiding mechanisms 5 are disposed on the fourth frame rod 14. The guide mechanism 5 includes a guide mounting frame 51 rotatably coupled to the moving frame 1 and a guide roller 52 horizontally disposed and rotatably coupled to a lower end of the guide mounting frame 51. By adopting the structure, in the process that the movable rack 1 moves along the track bed 94, the guide rollers 52 are attached to and roll with the side wall of the track bed 94, so that the movable rack 1 is guided, the movable rack 1 can move more stably and smoothly, and the movable rack 1 can be limited to transversely move in the left-right direction, so that the movable rack 1 is prevented from falling off the track bed 94.

Preferably, the guide mounting frame 51 includes a guide bottom plate 511 and two guide side plates 512, and the guide bottom plate 511 is vertically connected to the lower ends of the two guide side plates 512; the guide roller 52 and the guide base plate 511 are disposed parallel to each other and the guide roller 52 is rotatably coupled to the guide base plate 511.

Preferably, the guide mounting bracket 51 further includes a second roller mounting seat 53 and a second roller rotating shaft 54 which are arranged on the guide base plate 511, the second roller mounting seat 53 has a second roller mounting plate 531 which is arranged in parallel with the guide base plate 511, the second roller mounting plate 531 is provided with a second roller rotating shaft connecting hole 532, two ends of the second roller rotating shaft 54 extend into the second roller rotating shaft connecting hole 532 for rotational connection, and the guide roller 52 is sleeved on the second roller rotating shaft 54 and arranged between the two second roller mounting plates 531. By adopting the structure, the guide roller 52 is more convenient to disassemble and assemble and is convenient to maintain.

Preferably, the guide mounting frame 51 further comprises an adapter plate 513 and a connecting plate 514, the adapter plate 513 is vertically arranged and is fixedly connected with the side of the movable rack 1, a first through hole is formed in the adapter plate 513, a switching shaft 515 is arranged in the first through hole, the connecting plate 514 is parallel to the adapter plate 513, the upper ends of the two guide side plates 512 of the connecting plate 514 are vertically connected, a second through hole is formed in the connecting plate 514, and the second through hole is matched with the switching shaft 515 to be rotatably connected. A first fixing lug 171 is further arranged below the side edge of the movable frame 1, a second fixing lug 172 is arranged on the guide side plate 512, the first fixing lug 171 is parallel to the second fixing lug 172, and fixing holes 173 correspondingly arranged on the first fixing lug 171 and the second fixing lug 172 are arranged on the first fixing lug 171. When the moving frame 1 needs to be separated from the track bed 94, the guide mechanism 5 needs to be retracted, the guide mounting frame 51 may be rotated upward around the rotation shaft 515, the guide mounting frame 51 is adjacent to the moving frame 1, and the second fixing lug 172 is adjacent to the first fixing lug 171, and then fixing pins are inserted into the fixing holes 173 of the first fixing lug 171 and the second fixing lug 172, thereby fixing the retracted guide mounting frame 51. By adopting the structure, the guide mechanism 5 can be folded more conveniently and rapidly.

Preferably, the guide mounting bracket 51 further includes a fixing plate 516, the fixing plate 516 is connected between the two guide side plates 512, and the upper end of the fixing plate 516 is connected to the connecting plate 514 and the lower end abuts against the outer side of the upper surface of the second roller mounting seat 53. By adopting the structure, the fixing plate 516 has a propping effect on the second roller mounting seat 53, so that the second roller mounting seat 53 is more firmly mounted, and the second roller mounting seat 53 can be effectively prevented from being overturned in the guide bottom plate 511.

Preferably, the guide mechanism 5 further includes a side abutting device, the side abutting device includes an abutting mounting seat 55, an abutting pressing plate 56 and an abutting driving device 57 for driving the abutting pressing plate 56 to move horizontally, the abutting mounting seat 55 is connected to the guide side plate 512, the abutting driving device 57 is horizontally arranged on the abutting mounting seat 55, the abutting pressing plate 56 is vertically arranged, the abutting pressing plate 56 is arranged in parallel with the side wall of the track bed 94, so that the abutting pressing plate 56 is parallel to the side wall of the track bed 94, and the power output end of the abutting driving device 57 is connected to the abutting pressing plate 56. With the adoption of the structure, after the alignment of the movable rack 1 is finished, the abutting driving device 57 drives the abutting pressing plate 56 to abut against and attach to two sides of the track bed 94, so that the movable rack 1 is fixed, the movable rack 1 is prevented from moving and deviating in the milling process of the machining mechanism 2, and the machining precision of the machining mechanism 2 is enhanced.

Preferably, the abutting driving device 57 is an oil cylinder, and the oil cylinders are communicated with each other, so that an oil cylinder system can be balanced, the oil cylinders can apply similar force at the same time, and the stability of the system is improved.

The working principle of the invention is as follows: firstly, calibrating the cutting thickness of the sleeper 91 to be processed, setting two pairs of positive sleeper groups in front of and behind the sleeper 91 to be processed, firstly moving the movable rack 1 to the position above the positive sleeper groups through an automatic roller mechanism, and respectively fixing the four positive clamping jaws 31 of the positive mechanism 3 with the four sleepers 91 of the two positive sleeper groups in a corresponding clamping sleeve manner, so that the front and back directions of the movable rack 1 are adjusted to be parallel to the extending direction of a track. Then the four jacking driving devices 33 jack up the movable frame 1 respectively, adjust the movable frame 1 to be parallel to the reference horizontal plane, and then the abutting driving device 57 drives the abutting pressing plate 56 to abut against the side wall of the track bed 94, so that the movable frame 1 is fixed on the track bed 94. Then, the machining mechanisms 2 provided on the left and right sides of the movable frame 1 are moved to two sleepers 91 in the same row by the tool bit moving drive mechanism, respectively, and tool setting is performed, the mounting frames 28 are each provided with a laser detector, the laser detectors use the upper surface of the sleeper base 93 as a reference surface, then the machining tool bit 21 is lowered to a height equal to the cutting thickness, and the tool bit rotating drive device 22 drives the machining tool bit 21 to rotate to mill the profile surface 92 of the sleeper 91.

The above embodiments and drawings are not intended to limit the form and style of the present invention, and any suitable changes or modifications thereof by those skilled in the art should be considered as not departing from the scope of the present invention.

Claims (10)

1. A milling and grinding device for eliminating the arch defect on a railway sleeper is characterized by comprising a machining cutter head for milling and grinding the sleeper, a cutter head rotation driving device for driving the machining cutter head to operate and a cutter head movement driving mechanism for driving the machining cutter head to move.

2. A milling and grinding apparatus for eliminating crown faults on railroad ties as claimed in claim 1, further comprising a moving frame, wherein the tool bit moving driving mechanism includes a longitudinal moving driving device for driving the machining tool bit to move in the front-rear direction of the moving frame, a lateral moving driving device for driving the machining tool bit to move in the left-right direction of the moving frame, and a vertical moving driving device for driving the machining tool bit to perform an elevating motion.

3. A milling and grinding apparatus for eliminating crown defects on railroad ties as claimed in claim 2, wherein the cutter head moving and driving mechanism further comprises a moving beam extending in the left-right direction of the moving frame, both ends of the moving beam are slidably connected to the left and right sides of the moving frame, and the power output end of the longitudinal moving and driving mechanism is connected to the moving beam.

4. A milling and grinding device for eliminating crown defects on railway sleepers as claimed in claim 3, wherein the longitudinal movement driving device comprises a first motor and a first screw rod, the first motor is arranged on the moving rack, and a power output end of the first motor is connected with the first screw rod; the first screw rod is horizontally arranged and in threaded connection with the movable supporting beam, and the first screw rod is vertically arranged with the movable supporting beam.

5. A milling and grinding device for eliminating crown defects on railway sleepers as claimed in claim 3, wherein the left and right sides of the movable rack are further provided with first guide slide rails extending in the front-rear direction of the movable rack, and both ends of the movable support beam are provided with first guide slide grooves matched with the first guide slide rails for sliding.

6. A milling and grinding apparatus for eliminating crown defects on railroad ties as claimed in claim 3, wherein the cutter head moving and driving mechanism further comprises a bearing frame, the bearing frame is sleeved on the moving support beam and is slidably connected with the moving support beam, the lateral moving and driving device is arranged on the moving support beam, and the power output end of the lateral moving and driving device is connected with the moving support beam.

7. A milling and grinding device for eliminating crown faults on railway sleepers as claimed in claim 6, wherein the movable supporting beam is further provided with a second guide slide rail arranged along the extending direction of the movable supporting beam, and the bearing frame is provided with a second guide slide groove matched with the second guide slide rail for sliding.

8. A milling and grinding apparatus for eliminating crown faults on railroad ties as in claim 6 wherein the carrier frame is further provided with a plurality of guide pulleys. The guide pulley is rotatably connected with the bearing frame, and the outer circumferential surface of the guide pulley is attached to the movable support beam and rolls.

9. A milling and grinding device for eliminating arch faults on railway sleepers as claimed in claim 6, wherein the transverse movement driving device comprises a second motor and a second screw rod, a power output end of the second motor is in transmission connection with the second screw rod, the extending direction of the second screw rod is parallel to the extending direction of the movable supporting beam, and a threaded sleeve in threaded fit with the second screw rod is arranged on the bearing frame.

10. A milling and grinding device for eliminating crown faults on railroad ties as recited in claim 6, wherein the cutter head movement driving mechanism further comprises a mounting frame, the vertical movement driving device is connected to the mounting frame, a power output end of the vertical movement driving device is connected to the carrying frame, and the machining cutter head and the cutter head rotation driving device are arranged on the mounting frame.

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