CN109604696B

CN109604696B - Milling cutter disc for milling steel rail

Info

Publication number: CN109604696B
Application number: CN201811134228.4A
Authority: CN
Inventors: 李军旗; 徐龙; 蒋益民; 张瑞伟
Original assignee: Shenzhen Fulian Jingjiang Technology Co ltd
Current assignee: Shenzhen Fulian Jingjiang Technology Co ltd
Priority date: 2018-09-27
Filing date: 2018-09-27
Publication date: 2024-04-16
Anticipated expiration: 2038-09-27
Also published as: CN109604696A

Abstract

A milling cutter head for milling steel rails comprises a cutter head, a plurality of cutter holders and a plurality of groups of blades. The cutter head comprises a hub, the plurality of cutter holders are fixed on the hub, the plurality of cutter groups are fixed on the plurality of cutter holders, at least one chip module is fixed on the cutter head and is in communication connection with a server, the chip module is connected with at least one sensor, the at least one sensor obtains at least one milling state information of the cutter head when milling the steel rail, and the at least one chip module transmits the at least one milling state information to the server.

Description

Milling cutter disc for milling steel rail

Technical Field

The invention relates to a milling cutter disc for milling steel rails.

Background

The rail is fatigued by the long-term pressure in the transverse and vertical directions, so that the rail is deformed in a shaping way, and the profile is widened in the transverse direction, so that fat edges and other surface defects are formed. The repair of the steel rail adopts a steel rail milling and grinding lathe, and milling is performed through a milling cutter disc on the milling and grinding lathe. However, the state of the milling cutter disc in the milling process is not monitored at present, and the processing fault of the milling cutter disc in the milling process cannot be prevented.

Disclosure of Invention

In view of the foregoing, it is desirable to provide a milling cutter that monitors the condition of the milling cutter during milling.

The milling cutter head comprises a cutter head, a plurality of cutter holders and a plurality of groups of blades, wherein the cutter head comprises a hub, the cutter holders are fixed on the hub, the cutter heads are fixed on the cutter holders, at least one chip module is fixed on the cutter head and is in communication connection with a server, the chip module is connected with at least one sensor, the at least one sensor obtains at least one milling state information of the milling cutter head when the steel rail is milled, and the at least one chip module transmits the at least one milling state information to the server; each tool holder forms two rows of accommodating grooves on the top surface far away from the hub, each blade group comprises two rows of blades, each blade group is fixed in the two rows of accommodating grooves, each accommodating groove forms an opening, each blade comprises a cutting edge facing the opening and a front cutter surface facing the opening, the cutting edge is one edge of the front cutter surface, an included angle between the cutting edge and the axial center line of the cutter disc is 0-30 degrees, an included angle between the front cutter surface and the radial center line of the cutter disc is-15 degrees, an included angle between the cutting edges of two adjacent blades in each row of blades is 0-5 degrees, and an angle between the cutting edges of the two rows of blades is 0-15 degrees.

The milling cutter disc can acquire milling state information of the milling cutter disc in the milling process, the acquired milling state information is transmitted to the server, and the milling cutter disc is monitored through the server, so that possible processing faults of the milling cutter disc are prevented.

Drawings

Fig. 1 is a perspective view of a milling cutter disc.

Fig. 2 is a perspective view of the milling cutter disc of fig. 1 in another orientation.

Fig. 3 is a partially exploded view of the milling cutter disc of fig. 1.

Fig. 4 is an enlarged view of the milling cutter disc of fig. 1 at VII.

Fig. 5 is a schematic connection diagram of the chip module in fig. 2.

Fig. 6 is a partially exploded view of the toolholder and insert of fig. 1.

Fig. 7 is an axial schematic view of the milling cutter disc of fig. 1.

Fig. 8 is a radial schematic view of the milling cutter disc of fig. 1.

Fig. 9 is a schematic view of the angle between the rake surface at VIII in fig. 8 and the radial centerline of the cutterhead.

Fig. 10 is a schematic view of the angle between the cutting edges at VIII in fig. 8.

Description of the main reference signs

The invention will be further described in the following detailed description in conjunction with the above-described figures.

Detailed Description

Referring to fig. 1-3, a milling cutter disc 100 is provided. The milling cutter disc 100 is used to mill rails. The milling cutter disc 100 includes a cutter head 10, a plurality of toolholders 28, and a plurality of sets of inserts 50. The plurality of toolholders 28 are secured to the cutterhead 10 and the plurality of sets of inserts 50 are secured to the plurality of toolholders 28.

The cutterhead 10 includes a hub 12 having a circumferential shape and a plurality of teeth 14 formed in the circumferential direction of the hub 12 at uniform intervals. The portion of the hub 12 between two adjacent teeth 14 forms a perforation 16. A catch groove 36 is formed between each adjacent tooth 14. The tool holder 28 includes a holder body 32 and a convex key 34 protruding from a center of a bottom surface of the holder body 32. The side of the tab 34 facing the hub 12 defines a threaded aperture (not shown). The convex key 34 is disposed in the clamping groove 36, and the bottom surface abuts against two adjacent teeth 14. A first screw 38 is threaded through the bore 16 into the threaded bore to secure the toolholder 28 to the cutterhead 10. The convex key 34 includes two opposite positioning surfaces 40, where the two positioning surfaces 40 face the two adjacent teeth 14, and the two positioning surfaces 40 form an included angle of 60 °.

Referring to fig. 4 and 5, at least one groove (not shown) is formed on the end surface of the cutterhead 10. A chip module 80 is fixed in each groove. All of the chip modules 80 are connected in wireless communication with a server 90. The server 90 may be a computer. At least one sensor 82 is connected to each of the chip modules 80. The at least one sensor 82 obtains at least one milling status information of the milling cutter 100 when milling the rail, and the at least one chip module 80 transmits the at least one milling status information to the server 90 so as to monitor the milling status information of the milling cutter 100 through the server 90 to prevent processing failure.

The at least one sensor 82 includes a thermocouple 84 and a vibration sensor 86. The contact end 88 of the thermocouple 84 is secured to one of the blades 50, the thermocouple 84 being configured to obtain temperature information about the blade 50, and the at least one milling parameter comprising the temperature of the blade 50. The cutter head 10 forms a connecting hole 20 on the outer surface of the hub 12, and the connecting hole 20 is communicated with the groove. The blade 50 forms a positioning hole 52, the contact end 88 passes through the connecting hole 20 and the positioning hole 52 to be exposed to the blade 50, and the part of the thermocouple 84 located in the positioning hole 52 is abutted against the inner wall of the positioning hole 52, so that the thermocouple 84 contacts with the blade 50 to sense the temperature of the blade 50. The vibration sensor 86 is configured to obtain vibration information of the milling cutter disc 100, and the at least one milling status information includes vibration information of the milling cutter disc 100.

In this embodiment, the end surface of the cutterhead 10 forms two symmetrically arranged grooves, and the two chip modules 80 are fixed in the two grooves. The thermocouples 84 connected to the chip modules 80 are respectively fixed on the blades 50, and the thermocouples 84 acquire temperature information of the blades 50. The two vibration sensors 86 are connected to the two chip modules 80, and the cutter head 10 is symmetrical in structure, so that stable milling is facilitated, as the two chip modules 80 on the cutter head 10 have the same structure. In addition, due to the two vibration sensors 86, it is possible to prevent one vibration sensor 86 from being damaged and still obtain the vibration information of the milling cutter disc 100 through the other vibration sensor 86.

Referring to fig. 6, the top surface of each of the toolholders 28 defines two rows of pockets 42, and each set of inserts 50 includes two rows of inserts 50. The two rows of blades 50 are secured to the two rows of receiving slots 42 with a plurality of second screws 51. Each of the receiving slots 42 defines an opening 44. Two chip flutes 46 are also formed in the holder 28 and are in communication with the openings 44 of the two pockets 42, respectively. The chip flute 46 is for receiving chip dust from the blade 50 milled from the rail. The insert 50 includes a cutting edge 54 facing the opening 44 and a rake surface 56 facing the opening 44, the cutting edge 54 being an edge of the rake surface 56.

Referring to fig. 7, the included angle Y between the cutting edge 54 and the axial center line M of the cutterhead 10 is 0-30 °, and referring to fig. 8 and 9, the included angle Z between the rake surface 56 and the radial center line N of the cutterhead 10 is-15 ° to 15 °, and the impact resistance of the cutting edge 54 with the included angle Y and the included angle Z within the above range is strong, which is beneficial to cutting the steel rail. Referring to fig. 8 and 10, the included angle B between the cutting edges 54 of two adjacent blades 50 in each row of blades 50 is 0 ° to 5 °, and the angle a between the cutting edges 54 of the two rows of blades 50 is 0 ° to 15 °. The blades 50 are staggered, and have vibration reduction effect during milling, so that the blades 50 are protected.

One of the two rows of blades 50 includes a plurality of first square blades 58 and a first circular blade 61, and the other row includes the plurality of second square blades 62, a second circular blade 64 and a third square blade 66. The third square blade 66 is located on a side of the second circular arc blade 64 remote from the second square blade 62. Wherein the first square blade 58 is identical in construction to the second square blade 62. The number of first square blades 58 is the same as the number of second square blades 62.

The above-mentioned milling cutter 100 may obtain relevant information of milling parameters of the milling cutter 100 during the milling process and transmit the obtained relevant information to the server 90, and monitor the milling cutter 100 through the server 90, so as to prevent possible processing failure of the milling cutter 100.

It will be appreciated by persons skilled in the art that the above embodiments have been provided for the purpose of illustration only and not for the purpose of limitation, and that the appropriate modifications and variations of the above embodiments are within the scope of the disclosure of the invention as disclosed herein.

Claims

1. The utility model provides a milling cutter dish of milling rail, includes blade disc, a plurality of cutter holder and multiunit blade, the blade disc includes wheel hub, a plurality of cutter holders are fixed in on the wheel hub, multiunit blade is fixed in on a plurality of cutter holders, its characterized in that: the method comprises the steps that at least one chip module is fixed on the cutter disc, the at least one chip module is in communication connection with a server, the chip module is connected with at least one sensor, the at least one sensor obtains at least one milling state information of the milling cutter disc when milling a steel rail, and the at least one chip module transmits the at least one milling state information to the server; each tool holder forms two rows of accommodating grooves on the top surface far away from the hub, each blade group comprises two rows of blades, each blade group is fixed in the two rows of accommodating grooves, each accommodating groove forms an opening, each blade comprises a cutting edge facing the opening and a front cutter surface facing the opening, the cutting edge is one edge of the front cutter surface, an included angle between the cutting edge and the axial center line of the cutter disc is 0-30 degrees, an included angle between the front cutter surface and the radial center line of the cutter disc is-15 degrees, an included angle between the cutting edges of two adjacent blades in each row of blades is 0-5 degrees, and an angle between the cutting edges of the two rows of blades is 0-15 degrees.

2. The milling cutter head for milling a steel rail of claim 1, wherein the at least one sensor comprises a thermocouple, a contact end of the thermocouple being secured to one of the blades, the thermocouple being configured to obtain temperature information for the blade, the at least one milling status information comprising a temperature of the blade.

3. The milling cutter head for milling steel rails according to claim 2, wherein the end face of the cutter head forms a groove for accommodating the at least one chip module, the cutter head forms a connecting hole on the outer surface of the hub, the connecting hole is communicated with the groove, the blade forms a perforation, the contact end passes through the connecting hole and the perforation to be exposed to the blade, and the thermocouple is located at the perforation and is abutted against the inner wall of the perforation.

4. The milling cutter head for milling a steel rail of claim 1, wherein the at least one sensor comprises a vibration sensor for acquiring vibration information of the cutter head, and wherein the at least one milling status information comprises vibration information of the milling cutter head.

5. The milling cutter head for milling steel rails according to claim 1 comprising two said chip modules symmetrically secured to said cutter head.

6. The milling cutter head for milling steel rails according to claim 1, wherein the cutter head further comprises a plurality of teeth which are formed in the circumferential direction of the hub and are uniformly spaced, a clamping groove is formed between each two adjacent teeth, the cutter holder comprises a clamp body and a convex key which is convexly arranged at the middle position of the bottom surface of the clamp body, the convex key is fixed in the clamping groove, and the bottom surface is abutted against the two adjacent teeth.

7. The milling cutter head of claim 6 wherein said male key includes two oppositely facing locating surfaces facing each adjacent tooth, said locating surfaces forming an included angle of 60 °.

8. The milling cutter head of claim 7 wherein the portion of said hub between two adjacent said teeth defines a bore, the side of said tab facing said hub defines a threaded bore, and a screw is threaded through said bore into said threaded bore to secure said toolholder to said cutter head.