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CN-122007824-A - Machining method for stock rail inscription end of steel rail expansion regulator

CN122007824ACN 122007824 ACN122007824 ACN 122007824ACN-122007824-A

Abstract

The invention relates to the technical field of rail expansion regulators, in particular to a processing method of an inscription end head of a rail expansion regulator stock rail, which comprises the expansion regulator stock rail, when a main body is processed, an electromagnetic chuck is arranged at the lower side of the expansion regulator stock rail, the electromagnetic chuck is characterized in that an installation base plate is arranged on the lower side of the electromagnetic chuck, a machine tool body is arranged on the lower side of the installation base plate, a machine tool workbench is arranged on the lower side of the basic rail of the telescopic regulator during rail bottom machining, and an end supporting compressing and positioning device and an intermediate supporting compressing device are arranged at the upper end of the machine tool workbench. The processing method of the rail expansion regulator stock rail inscription end provided by the invention establishes a complete technological scheme, starts with the design and selection of special tools and cutters, adopts a series of methods for control, and finally realizes the domestic autonomous production of the rail expansion regulator stock rail inscription end in a simple and efficient manner.

Inventors

  • WANG YONGBO

Assignees

  • 新铁德奥道岔有限公司

Dates

Publication Date
20260512
Application Date
20260331

Claims (10)

  1. 1. The machining method of the rail expansion regulator stock rail inscription end comprises the steps that a machining device of the rail expansion regulator stock rail inscription end is used, the machining device comprises an expansion regulator stock rail (1), when a main body is machined, an electromagnetic chuck (6) is arranged on the lower side of the expansion regulator stock rail (1), an installation base plate (7) is arranged on the lower side of the electromagnetic chuck (6), a machine tool body (8) is arranged on the lower side of the installation base plate (7), a jacking oil cylinder (9) is arranged on one side of the expansion regulator stock rail (1), a machine tool workbench (15) is arranged on the lower side of the rail bottom during machining, an end support compressing and positioning device (14) and an intermediate support compressing device (16) are arranged at the upper end of the machine tool workbench (15), the end support compressing and positioning device (14) and the intermediate support compressing device (16) clamp and position the expansion regulator stock rail (1), and one end lower side of the expansion regulator stock rail (1) far away from the machine tool workbench (15) is abutted against a tail support (17), and the machining device is characterized in that the following specific machining step of the rail inscription end is used by adopting the expansion regulator stock rail: S1, positioning a telescopic regulator stock rail (1) through an electromagnetic chuck (6) and a tightening oil cylinder (9), processing a fish tail space transition region, milling a chin, and processing a rail top inclined plane of the transition region; s2, clamping and positioning the telescopic regulator stock rail (1) through an end support compressing and positioning device (14) and an intermediate support compressing device (16); S3, performing coordinate origin tool setting, and milling rail bottom side edges and bottom surface parts of a rail bottom transition area.
  2. 2. The method for machining the stock rail inner joint of the steel rail telescopic adjuster is characterized in that the electromagnetic chuck (6) comprises a chuck body (601), the chuck body (601) is arranged at the upper end of the installation base plate (7), a positioning stop block (602) is arranged at the upper end of the chuck body (601), a lateral magnetic conduction block (603) is arranged on the positioning stop block (602), the stock rail (1) of the telescopic adjuster is clamped between the jacking oil cylinder (9) and the lateral magnetic conduction block (603), and a bottom magnetic conduction block (604) is arranged at the upper end of the chuck body (601).
  3. 3. The method for machining the inner joint of the basic rail of the steel rail expansion regulator, as set forth in claim 1, is characterized in that the basic rail (1) of the expansion regulator is provided with an oblique removing area (2) and a rail height (3), and the upper end and the lower end of the basic rail (1) of the expansion regulator are respectively provided with a transition area I (4) and a transition area II (5).
  4. 4. The method for machining the stock rail inner joint of the steel rail expansion regulator is characterized in that the jacking oil cylinder (9) is arranged on one side of the electromagnetic chuck (6), and the cylinder rod corresponds to the length center of the electromagnetic chuck (6).
  5. 5. A method of machining an inner rail joint of a telescopic rail adjuster according to claim 1, wherein the working edge comprises a 1:3 jaw for abutting against the tongue rail.
  6. 6. The method for machining the rail inner joint end of the telescopic adjuster of the steel rail, as set forth in claim 1, characterized in that the end supporting, compressing and positioning device (14) comprises a tool main body I (18), wherein the tool main body I (18) is fixed at the upper end of a machine tool workbench (15), a hanging ring (19) is arranged at the upper end of the tool main body I (18), a positioning component (20) is arranged at the lower end of the tool main body I (18), a cushion block (31) is arranged at the upper end of the tool main body I (18), a U-shaped pressing plate (24) is arranged at the upper side of the cushion block (31), a compressing screw (23) is arranged at the upper end of the tool main body I (18), a hexagonal nut (22) with a shoulder is connected at the upper end of the compressing screw (23), the bottom end of the hexagonal nut (22) is abutted against the upper end of the U-shaped pressing plate (24), the U-shaped pressing plate (24) is arranged at the top end of the telescopic adjuster basic rail (1), a supporting component (21) is arranged at the lower side of the telescopic adjuster basic rail (1), the upper end of the telescopic adjuster basic rail (1) is abutted against the pressing plate (25), the bottom pressing screw (25) is connected with the compressing screw (23) and the upper end of the compressing screw (23) is connected with the compressing screw (23), one side of the rail bottom pressing plate (25) is positioned on the first tooling main body (18) and is provided with a jacking component (26).
  7. 7. The method for machining the stock rail inner joint of the steel rail expansion regulator is characterized in that the middle supporting and pressing device (16) comprises a second tool body (27), and the second tool body (27) is also provided with a hanging ring (19), a positioning assembly (20), a shoulder hexagonal nut (22), a pressing screw (23), a rail bottom pressing plate (25) and a jacking assembly (26).
  8. 8. The method for machining a stock rail inner joint of a telescopic adjuster for a steel rail according to claim 7, wherein the positioning assembly (20) comprises a positioning key and a positioning key fixing bolt, the supporting assembly (21) comprises a supporting screw, a supporting plate and a hexagonal nut, and the tightening assembly (26) comprises a tightening screw, a plug and a plug fixing bolt.
  9. 9. A method for machining a stock rail inner joint of a steel rail expansion regulator is characterized in that during machining of a main body and a rail bottom, a cutter used comprises a fish tail space milling cutter (10), a special milling cutter (11), a face milling cutter (13) and a corn milling cutter (30), and the abutting position of the special milling cutter (11) and the upper end of the stock rail (1) of the expansion regulator is a Y-value tool setting point (12).
  10. 10. A method for machining a stock rail inner joint of a telescopic regulator for a steel rail according to claim 1, wherein when machining the rail bottom, cutting alignment is performed in a direction of alignment one (28) at a ratio of 3:100 for the height supporting points on both sides, and cutting alignment is performed in a direction of alignment two (29) for the fixed edge of the steel rail in the Y direction.

Description

Machining method for stock rail inscription end of steel rail expansion regulator Technical Field The invention relates to the technical field of rail expansion regulators, in particular to a processing method of a stock rail inscription end of a rail expansion regulator. Background The rail expansion regulator is a large key device for regulating rail expansion of railway line to cope with environmental temperature change. The rail expansion regulator can counteract expansion and contraction of the line along with temperature change by utilizing relative dislocation movement between the stock rail and the switch rail, and is commonly used on a large-span steel girder bridge, a bridge head and a seamless line, wherein the expansion and contraction section of the rail is required to be regulated. The CN series rail expansion regulator has core technology from Germany, and has been used in large scale in domestic railway line, and its rail main part rail and switch rail are always dependent on import, and have high cost and long supply period. In order to reduce the cost and better control the production progress, the main rail component of the CN series rail expansion regulator is developed by domestic production technology. In development, the stock rail inner joint end is a key point and a difficult point of process development because the stock rail inner joint end comprises a special transition area with a complex structure. Disclosure of Invention In order to solve the problems, the invention provides a processing method of a stock rail inscription end of a steel rail expansion regulator. The invention adopts the following technical scheme that the processing device for the inscribed end of the stock rail of the steel rail expansion regulator comprises the stock rail of the expansion regulator, when a main body is processed, the lower side of the stock rail of the expansion regulator is provided with an electromagnetic chuck, the lower side of the electromagnetic chuck is provided with a mounting base plate, the lower side of the mounting base plate is provided with a machine tool body, one side of the stock rail of the expansion regulator is provided with a tightening cylinder, when the rail bottom is processed, the lower side of the stock rail of the expansion regulator is provided with a machine tool workbench, the upper end of the machine tool workbench is provided with an end support compressing and positioning device and a middle support compressing device, the end support compressing and positioning device and the middle support compressing device clamp and position the stock rail of the expansion regulator, and one end lower side of the stock rail of the expansion regulator far away from the machine tool workbench is abutted against a tail support, and the processing device for the inscribed end of the stock rail of the steel rail expansion regulator is used comprises the following specific steps: s1, positioning a basic rail of a telescopic regulator through an electromagnetic chuck and a jacking oil cylinder, processing a fish tail space transition region, milling a chin, and processing a rail top inclined plane of the transition region; s2, clamping and positioning the basic rail of the telescopic regulator through the end support compression device, the positioning device and the middle support compression device; S3, performing coordinate origin tool setting, and milling rail bottom side edges and bottom surface parts of a rail bottom transition area. According to the technical scheme, the electromagnetic chuck comprises a chuck body, the chuck body is arranged at the upper end of the mounting base plate, a positioning stop block is arranged at the upper end of the chuck body, a lateral magnetic conduction block is arranged on the positioning stop block, a telescopic regulator stock rail is clamped between the jacking oil cylinder and the lateral magnetic conduction block, and a bottom magnetic conduction block is arranged at the upper end of the chuck body. As further description of the technical scheme, the oblique removing area and the rail height are arranged on the telescopic regulator stock rail, and the upper end and the lower end of the telescopic regulator stock rail are respectively provided with a first transition area and a second transition area. As further description of the technical scheme, the tightening oil cylinder is arranged on one side of the electromagnetic chuck, and the cylinder rod corresponds to the length center of the electromagnetic chuck. As a further description of the above solution, a 1:3 jaw is included on the side of the head of the working edge for abutment with the point rail. According to the technical scheme, the end supporting, compressing and positioning device comprises a first tool main body, the first tool main body is fixed at the upper end of a machine tool workbench, a hanging ring is arranged at the upper end of the first tool main body, a po