Milling platform capable of machining rails and guardrails

Abstract

The utility model discloses a milling platform capable of machining a track and a guard rail, and belongs to the technical field of turnouts. Comprising a workbench, two electromagnetic clamps, a dovetail groove, a rail clamp and a guard rail machining tool, and the guard rail machining tool comprises two longitudinal beams, a plurality of transverse beams, two beam fixing structures at the two ends of the transverse beams and two workpiece fixing structures at the two ends of the transverse beams; the two longitudinal beams are magnetically attracted to the two electromagnetic clamps respectively and are I-shaped beams formed by machining rails, mortises matched with each other are formed in the connecting positions of the transverse beams and the longitudinal beams, the beam fixing structures are fixed in the dovetail grooves in the corresponding sides, and positioning steps are arranged at the left end and the right end of each transverse beam; the workpiece fixing structure is detachably arranged on the transverse beam and presses the end, away from the machining face, of the top of the guard rail. When the rail to be machined is machined, the guard rail machining tool is dismantled; when the guardrails are machined, the two guardrails are fixed to the left end and the right end of the guardrail machining tool respectively, the guardrails abut against the positioning steps, and the workpiece fixing structures clamp the guardrails.

Description

Technical Field

[0001] This utility model belongs to the field of turnout technology, and specifically relates to a milling platform capable of processing tracks and guard rails, especially suitable for processing pad guard rails. Background Technology

[0002] A turnout is a basic track feature that branches a single track into two or more tracks, allowing locomotives and rolling stock to switch between lines. Turnouts are specialized track equipment that not only affects train operation safety but also has a shorter service life than other equipment, resulting in a greater workload for on-site maintenance. The most commonly used type in my country is the single turnout, where the main line is straight, and the siding branches off to the left or right from the main line; these are also called left-hand turnouts and right-hand turnouts.

[0003] For example, patent application number CN202110525945.5 discloses a high-stability single turnout, including several sleepers, a fastening system assembly, a straight main rail, a curved main rail, a straight connecting rail, a curved switch rail, a guard rail, and a turnout mechanism. The sleepers are arranged parallel to each other. The straight main rail, the curved main rail, the straight connecting rail, the curved switch rail, the guard rail, and the turnout mechanism are installed above the sleepers through the fastening system assembly. The straight main rail and the straight connecting rail are arranged parallel to each other. The curved main rail is located outside the straight connecting rail. The curved switch rail is located between the straight main rail and the straight connecting rail. The curved main rail and the curved switch rail have the same direction of travel. The curve of the curved switch rail intersects with the curves of the straight main rail and the straight connecting rail. The turnout mechanism is located at the intersection of the straight connecting rail and the straight connecting rail. The turnout mechanism connects the end of the curved tip rail and the end of the straight connecting rail. Guard rails are provided on both sides of the turnout mechanism, on the inner side of the straight main rail corresponding to the turnout mechanism, and on the inner side of the curved main rail corresponding to the turnout mechanism. The front end of the straight connecting rail is in close contact with the curved main rail, and the front end of the curved tip rail is in close contact with the straight main rail. The curved tip rail has a semi-tangential profile. The working surface of the straight main rail at the point where it is in close contact with the curved tip rail is concave inwards. The working surface of the curved tip rail at the point where it is in close contact with the straight main rail mates with the concave surface of the straight main rail. The fastening system uses elastic fasteners with consistent internal and external fastening pressure on the straight main rail.

[0004] In turnouts, both the track and guard rails require milling. In existing technology, the track can be machined using a fixed-beam double-spindle gantry milling machine, with the two tracks fixed to two electromagnetic clamps on the left and right sides of the machine's worktable.

[0005] For example, patent application number CN201520107292.9 discloses a positioning device for a milling machine, including a base, support ribs, a hinged pressure plate, and a clamping bolt; multiple support ribs are provided, and all of the multiple support ribs are provided on the upper end surface of the base; each support rib has a thick nut at its upper end; the number of hinged pressure plates is the same as the number of support ribs, and each support rib has a hinged pressure plate on its upper end; the lower end of the hinged pressure plate is rotatably connected to the lower end of the support ribs, and the middle part of the hinged pressure plate is detachably connected to the thick nut through the clamping bolt; each hinged pressure plate has a protrusion at its upper end for conveniently pressing down on the rail.

[0006] The existing milling machine's worktable can only clamp the rail, so it cannot process the guard rail. Utility Model Content

[0007] To address the aforementioned problems, this utility model provides a milling platform capable of machining both tracks and guard rails. A guard rail machining fixture is detachably mounted on an existing worktable; installing the fixture allows for guard rail machining, while removing it allows for track machining. The technical solution is as follows:

[0008] This utility model embodiment provides a milling platform capable of processing tracks and guard rails, including a worktable 1 arranged along the front-to-back direction, two electromagnetic clamps 2 symmetrically arranged on the left and right sides of the worktable 1, dovetail grooves 3 on the worktable 1 located outside the corresponding electromagnetic clamps 2, and track clamps 4 on the dovetail grooves 3. The electromagnetic clamps 2 and dovetail grooves 3 are both arranged along the front-to-back direction, and the electromagnetic clamps 2 and track clamps 4 cooperate with the track 5 to be processed. The milling platform also includes a guard rail processing fixture detachably mounted on the worktable 1. The guard rail processing fixture includes two longitudinal beams 6, multiple transverse beams 7 arranged side-by-side on the upper sides of the two longitudinal beams 6, two beam fixing structures 8 at both ends of the transverse beams 7, and two workpiece fixing structures 9 at both ends of the transverse beams 7. The longitudinal beams 6 and transverse beams 7 are arranged along the front-to-back direction and left-to-right direction respectively, and their splicing forms a rectangular grid. The longitudinal beam 6 is magnetically attached to two electromagnetic clamps 2 and is an I-shaped beam machined from rails. The connection between the transverse beam 7 and the longitudinal beam 6 is provided with mutually matching tenons and grooves. The beam fixing structure 8 is fixed in the dovetail groove 3 on the corresponding side. The left and right ends of the transverse beam 7 are provided with positioning steps 10. The workpiece fixing structure 9 is detachably mounted on the transverse beam 7 and is located on the left or right side of the guard rail 11. It presses the top of the guard rail 11 away from the processing surface. When processing the track to be processed 5, the guard rail processing fixture is removed and the two tracks to be processed 5 are fixed to the two electromagnetic clamps 2 respectively. When processing the guard rail 11, the guard rail processing fixture is installed and the two guard rails 11 are fixed to the left and right ends of the guard rail processing fixture respectively. The inner side of the guard rail 11 abuts against the positioning step 10 and the workpiece fixing structure 9 clamps the guard rail 11.

[0009] Furthermore, in this embodiment of the utility model, the workbench 1 is provided with stepped bases 12 at both the left and right ends; the stepped bases 12 are arranged in the front-to-back direction, and are stepped from the outside to the inside, and are located inside the dovetail grooves 3 on the corresponding side; the electromagnetic clamp 2 includes an electromagnetic support block 21 and an electromagnetic support frame 22, the electromagnetic support block 21 is arranged on the horizontal surface of the stepped base 12; the electromagnetic support frame 22 is arranged in the left-to-right direction, and is located above the bottom of the rail, with its inner end fixed on the vertical surface of the stepped base 12 and its outer end abutting against the inner side of the rail web; the top of the longitudinal beam 6 is higher than the top of the stepped base 12.

[0010] In this embodiment of the present invention, the transverse beam 7 is also an I-shaped beam processed from a track; for the longitudinal beam 6: the bottom of the longitudinal beam 6 is magnetically attracted to the electromagnetic support block 21, its rail waist is arranged vertically along the front-back direction, its rail top is horizontal and has multiple lower tenons 13 arranged side by side on its upper and lower sides; for the transverse beam 7: the rail waist of the transverse beam 7 is arranged horizontally along the left-right direction, its lower sides of the rail head and rail bottom are flush and have two upper tenons 14, its upper sides of the rail head and rail bottom are flush and have a positioning step 10 at its end; the lower tenons 13 are arranged along the left-right direction, the upper tenons 14 are arranged along the front-back direction, and the lower tenons 13 and the upper tenons 14 cooperate and fit together for fixation.

[0011] Specifically, in this embodiment of the present invention, both the lower tenon 13 and the upper tenon 14 are rectangular grooves with a depth greater than 0.5 cm.

[0012] In this embodiment of the utility model, the beam fixing structure 8 includes a T-shaped block that mates with the dovetail groove 3 and a vertically arranged fixing bolt. The end of the transverse beam 7 is provided with a first through hole 15 in the vertical direction for the fixing bolt to pass through. The T-shaped block is detachably disposed in the dovetail groove 3 on the corresponding side and is located directly below the corresponding transverse beam 7. The fixing bolt passes downward through the first through hole 15, with its head abutting against the upper side of the rail web of the transverse beam 7 and its lower end fixed to the upper side of the T-shaped block.

[0013] In this embodiment of the utility model, the workpiece fixing structure 9 includes a clamping plate 91, a clamping bolt 92, and a pad 93. The clamping plate 91 is arranged in a left-right direction, and has an elongated hole along its direction. It is located on the left or right side of the guard rail 11. One end of the clamping plate 91 clamps the left or right end of the top of the guard rail 11, and the lower side of the other end is spaced between the clamping plate 93 and the upper side of the transverse beam 7. The transverse beam 7 has second through holes 16 on its web and on both sides of the guard rail 11 for the clamping bolt 92 to pass through. The clamping bolt 92 passes upward through the second through hole 16 and the elongated hole and is locked by a nut on the upper side of the clamping plate 91. When machining the outer side of the guard rail 11, the clamping bolt 92 passes upward through the second through hole 16 on the inner side of the guard rail 11; the clamping plate 91 is located on the inner side of the guard rail 11, with its outer end pressing against the inner end of the top of the guard rail 11, and a pad 93 is placed between its inner end and the upper side of the transverse beam 7; when machining the inner side of the guard rail 11, the clamping bolt 92 passes upward through the second through hole 16 on the outer side of the guard rail 11; the clamping plate 91 is located on the outer side of the guard rail 11, with its inner end pressing against the outer end of the top of the guard rail 11, and a pad 93 is placed between its outer end and the upper side of the transverse beam 7; when machining the inner and outer sides of the guard rail 11, the pad 93 is in different placement directions.

[0014] Preferably, in this embodiment of the present invention, the first through hole 15 and the second through hole 16 on the outer side of the guard rail 11 are connected to form an elongated hole arranged in the left-right direction.

[0015] Specifically, in this embodiment of the present invention, the clamping bolt 92 is a T-bolt, and the lower side of the rail web of the transverse beam 7 is provided with an anti-rotation groove 17 that mates with the head of the T-bolt in the left and right directions, and the head of the T-bolt is embedded in the anti-rotation groove 17.

[0016] Specifically, in this embodiment of the present invention, the pad 93 is a rectangular block arranged along the front-back direction, with its width being the thickness of the guard rail 11 minus the depth of the positioning step 10, and its height being the thickness of the guard rail 11; when processing the inner side of the guard rail 11, the height direction of the pad 93 is arranged vertically; when processing the outer side of the guard rail 11, the width direction of the pad 93 is arranged vertically.

[0017] Specifically, in this embodiment of the present invention, multiple transverse beams 7 are evenly distributed, the number of transverse beams 7 is 5-8, and the distance between two adjacent transverse beams 7 is 40-70cm.

[0018] The beneficial effects of the technical solution provided by this utility model embodiment are:

[0019] (1) A rail guard processing fixture can be detachably installed on the existing workbench. The rail guard is processed when the rail guard processing fixture is installed, and the rail is processed when the rail guard processing fixture is removed.

[0020] (2) The guard rail processing tool has a simple structure and is easy to install and dismantle.

[0021] (3) The transverse and longitudinal beams of the guard rail machining fixture are machined from rails, which are readily available and easy to process (directly used as rails for machining on this milling machine).

[0022] (4) High adaptability, can process guard rails of different specifications and different positions of guard rails. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of an existing milling platform;

[0024] Figure 2 This is a schematic diagram of the milling platform capable of processing tracks and guard rails in this embodiment of the present invention during track processing;

[0025] Figure 3 This is a schematic diagram of the structure of the milling platform capable of processing tracks and guard rails in this embodiment of the present invention when processing the outer side of the guard rail;

[0026] Figure 4 This is a schematic diagram of the structure of the milling platform capable of processing tracks and guard rails in this utility model embodiment when processing the inner side of the guard rail;

[0027] Figure 5 yes Figure 3 A magnified view of a portion of the image;

[0028] Figure 6 yes Figure 4 A magnified view of a portion of the image;

[0029] Figure 7 This is a structural diagram of the combination of longitudinal and transverse beams;

[0030] Figure 8 This is a top view of the milling platform capable of processing tracks and guard rails in this embodiment of the present invention when processing the outer side of the guard rail;

[0031] Figure 9 yes Figure 7 A magnified view of a portion of the image;

[0032] Figure 10 yes Figure 8 A magnified view of a portion of the image;

[0033] Figure 11 This is a structural schematic diagram of a longitudinal beam;

[0034] Figure 12 This is a side view of the transverse beam;

[0035] Figure 13 This is a bottom view of the transverse beam;

[0036] Figure 14 This is a top view of the transverse beam.

[0037] In the diagram: 1. Workbench, 2. Electromagnetic clamp, 3. Dovetail groove, 4. Rail clamp, 5. Rail to be processed, 6. Longitudinal beam, 7. Transverse beam, 8. Beam fixing structure, 9. Workpiece fixing structure, 10. Positioning step, 11. Guard rail, 12. Step base, 13. Lower tenon, 14. Upper tenon, 15. First through hole, 16. Second through hole, 17. Anti-rotation groove.

[0038] 21 Electromagnetic support block, 22 Electromagnetic support frame;

[0039] 91. Pressure plate, 92. Pressure bolt, 93. Spacer block. Detailed Implementation

[0040] To make the objectives, technical solutions and advantages of this utility model clearer, the utility model will be described in further detail below with reference to the accompanying drawings.

[0041] Example 1

[0042] See Figure 2-14 Example 1 provides a milling platform capable of machining tracks and guard rails, including a worktable 1, two electromagnetic clamps 2, two dovetail grooves 3, multiple track clamps 4, and a detachable guard rail machining fixture mounted on the worktable 1. The worktable 1 is arranged along the front-to-back direction. The two electromagnetic clamps 2 are respectively located on the left and right sides of the worktable 1, symmetrically arranged, and are arranged along the front-to-back direction. They include electromagnetic support blocks 21 and electromagnetic support frames 22, etc. The dovetail grooves 3 are arranged along the front-to-back direction, and multiple track clamps 4 are arranged side by side on them (see the description in CN201520107292.9). The two dovetail grooves 3 are located at the left and right ends of the worktable 1, respectively, and are located outside the corresponding electromagnetic clamps 2. The electromagnetic clamps 2 and track clamps 4 cooperate with the track 5 to be machined.

[0043] The guard rail processing fixture includes two longitudinal beams 6, multiple transverse beams 7 arranged side-by-side on the upper sides of the two longitudinal beams 6, two beam fixing structures 8 at both ends of the transverse beams 7, and two workpiece fixing structures 9 at both ends of the transverse beams 7. The longitudinal beams 6 and transverse beams 7 are arranged along the front-back and left-right directions respectively, and their splicing forms a rectangular grid. The two longitudinal beams 6 are magnetically attracted to two electromagnetic clamps 2, and they are I-shaped beams processed from rails. The transverse beams 7 are also I-shaped beams processed from rails. The connection between the transverse beams 7 and the longitudinal beams 6 is provided with mutually fitting tenons and slots. Specifically, for the longitudinal beams 6: the bottom of the longitudinal beam 6 is magnetically attracted to the electromagnetic support block 21, its rail web is arranged vertically along the front-back direction, its rail top is horizontal, and multiple lower tenons and slots 13 are arranged side-by-side on it. Both the rail top and the rail bottom are arranged horizontally along the front-back direction. For the transverse beam 7: The rail web of the transverse beam 7 is horizontally arranged along the left and right directions, and its rail head and rail bottom are vertically arranged along the left and right directions. The lower sides of the rail head and rail bottom are flush and have two upper tenons 14. The upper sides of the rail head and rail bottom are flush and have positioning steps 10 at their ends. The lower tenon 13 is arranged along the left and right directions, and the upper tenon 14 is arranged along the front and back directions. The lower tenon 13 and the upper tenon 14 mate and fit together to fix the beam.

[0044] The beam fixing structure 8 is fixed in the dovetail groove 3 on the corresponding side. Specifically, the beam fixing structure 8 includes a T-shaped block that mates with the dovetail groove 3 and vertically arranged fixing bolts, etc. The end of the transverse beam 7 has a first through hole 15 (specifically a round hole slightly larger than the bolt thread) for the fixing bolt to pass through in the vertical direction. The T-shaped block is detachably disposed in the dovetail groove 3 on the corresponding side and is located directly below the corresponding transverse beam 7. The fixing bolt passes downward through the first through hole 15, its head resting against the upper side of the rail web of the transverse beam 7, and its lower end fixed to the upper side of the T-shaped block.

[0045] The transverse beam 7 has positioning steps 10 at both ends. The workpiece fixing structure 9 is detachably mounted on the transverse beam 7, located on the left or right side of the guard rail 11, and presses the top end of the guard rail 11 away from the processing surface. Specifically, the workpiece fixing structure 9 includes a clamping plate 91, clamping bolts 92, and pads 93. The clamping plate 91 is arranged in the left-right direction and is specifically a rectangular plate with an elongated hole along its direction. It is located on the left or right side of the guard rail 11, with one end (left or right) pressing the top left or right end of the guard rail 11, and the other end (right or left) with a pad 93 between its lower side and the upper side of the transverse beam 7. On the web of the transverse beam 7, on both the left and right sides of the guard rail 11, there are second through holes 16 (specifically, round holes slightly larger than the screw of the clamping bolt 92) for the clamping bolt 92 to pass through. The clamping bolt 92 passes upward through the second through hole 16 and the oblong hole and is locked by the nut on the upper side of the clamping plate 91. Specifically, the outer second through hole 16 is located outside the first through hole 15. Specifically, the clamping bolt 92 is a T-bolt, and the lower side of the web of the transverse beam 7 has an anti-rotation groove 17 (specifically a rectangular groove) along the left and right direction to mate with the head of the T-bolt. The head of the T-bolt is embedded in the anti-rotation groove 17.

[0046] When machining the outer side of the guard rail 11, the clamping bolt 92 passes upward through the second through hole 16 on the inner side of the guard rail 11. The clamping plate 91 is located on the inner side of the guard rail 11, with its outer end pressing against the inner end of the top of the guard rail 11, and a pad 93 is placed between its inner end and the upper side of the transverse beam 7. When machining the inner side of the guard rail 11, the clamping bolt 92 passes upward through the second through hole 16 on the outer side of the guard rail 11. The clamping plate 91 is located on the outer side of the guard rail 11, with its inner end pressing against the outer end of the top of the guard rail 11, and a pad 93 is placed between its outer end and the upper side of the transverse beam 7. When machining the inner and outer sides of the guard rail 11, the pad 93 is placed in different orientations. Specifically, the pad 93 is a rectangular block arranged along the front-back direction, with a width equal to the thickness of the guard rail 11 minus the depth of the positioning step 10, and a height equal to the thickness of the guard rail 11. When machining the inner side of the guard rail 11, the height direction of the pad 93 is vertical. When processing the outer side of the guard rail 11, the width direction of the pad 93 is set vertically.

[0047] When machining the track 5 to be machined, the rail machining fixture is removed, and the two tracks 5 to be machined are respectively fixed on the two electromagnetic clamps 2 (the bottom of the track 5 is clamped by the track clamp 4). When machining the guard rail 11, the guard rail machining fixture is installed, and the two guard rails 11 are respectively fixed on the left and right ends of the guard rail machining fixture. The inner side of the guard rail 11 abuts against the positioning step 10, and the workpiece fixing structure 9 clamps the guard rail 11.

[0048] Furthermore, in this embodiment of the invention, the workbench 1 has stepped bases 12 at both its left and right ends. The stepped bases 12 are arranged in the front-to-back direction, rising in steps from the outside to the inside, and are located inside the dovetail grooves 3 on the corresponding sides. Electromagnetic support blocks 21 are disposed on the horizontal surface of the stepped bases 12. Electromagnetic support frames 22 are arranged in the left-to-right direction, located above the bottom of the rail, and are obliquely upward from the inside to the outside. Their inner ends are fixed to the vertical surface of the stepped bases 12, and their outer ends abut against the inner side of the rail web. The top of the longitudinal beam 6 is higher than the top of the stepped bases 12.

[0049] Specifically, in this embodiment of the present invention, both the lower tenon 13 and the upper tenon 14 are rectangular grooves with a depth greater than 0.5 cm.

[0050] Specifically, in this embodiment of the present invention, multiple transverse beams 7 are evenly distributed, with 5-8 transverse beams 7, and the distance between two adjacent transverse beams 7 is 40-70cm.

[0051] Example 2

[0052] See Figure 10 Example 2 provides a milling platform capable of processing tracks and guard rails. Its structure is basically the same as that of Example 1, except that the first through hole 15 and the second through hole 16 on the outer side of the guard rail 11 are connected to form an elongated hole arranged in the left and right direction.

[0053] Example 3

[0054] Example 3 provides a milling platform capable of machining tracks and guard rails. Its structure is basically the same as that of Example 1, except that the raw material for the guard rail 11 in this example is a rectangular steel plate. The specifications of the rectangular steel plate are: length 3239+30mm, width 216+4mm, and thickness 60+3mm. There are 6 transverse beams 7, and the distance between two adjacent transverse beams 7 is 60cm.

[0055] In this patent, the terms "first" and "second" serve only as distinctions and have no other special meaning.

[0056] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A milling platform capable of processing rails and guard rails, comprising a workbench (1) arranged in the front-rear direction, two electromagnetic clamps (2) symmetrically arranged on the left and right sides of the workbench (1), dovetail grooves (3) on the workbench (1) and outside the corresponding side electromagnetic clamps (2), and rail clamps (4) on the dovetail grooves (3), the electromagnetic clamps (2) and the dovetail grooves (3) are arranged in the front-rear direction, and the electromagnetic clamps (2) and the rail clamps (4) are matched with the rails (5) to be processed; characterized in that the milling platform further comprises a guard rail processing tool detachably arranged on the workbench (1), the guard rail processing tool comprises two longitudinal beams (6), a plurality of transverse beams (7) arranged side by side on the upper sides of the two longitudinal beams (6) in the front-rear direction, two beam fixing structures (8) at the ends of the transverse beams (7), and two workpiece fixing structures (9) at the ends of the transverse beams (7), the longitudinal beams (6) and the transverse beams (7) are arranged in the front-rear direction and the left-right direction respectively and are spliced to form a rectangular grid, the two longitudinal beams (6) are magnetically attracted to the two electromagnetic clamps (2) respectively and are I-shaped beams processed from rails, the connection between the transverse beams (7) and the longitudinal beams (6) is provided with mutually matched tenon and groove, the beam fixing structure (8) is fixed in the corresponding side dovetail groove (3), and the left and right ends of the transverse beam (7) are provided with a positioning step (10); the workpiece fixing structure (9) is detachably arranged on the transverse beam (7) and is located on the left side or the right side of the guard rail (11) and presses the end of the top of the guard rail (11) away from the processing surface; when processing the rails (5) to be processed, the guard rail processing tool is removed, and the two rails (5) to be processed are fixed on the two electromagnetic clamps (2) respectively; when processing the guard rails (11), the guard rail processing tool is installed, and the two guard rails (11) are fixed on the left and right ends of the guard rail processing tool respectively, the inner side of the guard rail (11) abuts against the positioning step (10), and the workpiece fixing structure (9) clamps the guard rail (11). The left and right ends of the workbench (1) are provided with stepped bases (12); the stepped bases (12) are arranged in the front-rear direction, are stepped from outside to inside, and are located on the inner side of the corresponding side dovetail groove (3); the electromagnetic clamp (2) comprises an electromagnetic support block (21) and an electromagnetic support frame (22), the electromagnetic support block (21) is arranged on the horizontal surface of the stepped base (12); the electromagnetic support frame (22) is arranged in the left-right direction, is located above the rail bottom, the inner end of the electromagnetic support frame (22) is fixed on the vertical surface of the stepped base (12), and the outer end of the electromagnetic support frame (22) abuts against the inner side of the rail waist; the top of the longitudinal beam (6) is higher than the top of the stepped base (12).

2. The milled platform for machining of rails and guard rails according to claim 1, characterized in that, The transverse beam (7) is also an I-shaped beam processed from a rail; 3. The milled platform for machining of rails and guard rails according to claim 2, characterized in that, For the longitudinal beam (6): the rail bottom of the longitudinal beam (6) is magnetically attracted to the electromagnetic support block (21), the rail waist is arranged in the front-rear direction and vertically, the rail top is horizontal, and a plurality of lower tenon grooves (13) are arranged side by side in front and back on the rail top. ​ For the transverse beam (7): the rail web of the transverse beam (7) is arranged horizontally along the left-right direction, the lower side of the rail head and the rail bottom is flush, and two upper tenon grooves (14) are arranged on the upper side of the rail head and the rail bottom; the upper side of the rail head and the rail bottom is flush, and a positioning step (10) is arranged at the end of the upper side of the rail head and the rail bottom; The lower tenon groove (13) is arranged along the left-right direction, and the upper tenon groove (14) is arranged along the front-back direction. The lower tenon groove (13) is matched with the upper tenon groove (14) and is fixed by embedding.

4. The milled platform for machining of rails and guard rails according to claim 3, characterized in that, The lower tenon groove (13) and the upper tenon groove (14) are both rectangular grooves, and the depth is greater than 0.5 cm.

5. The milled platform for machining of rails and guard rails according to claim 4, characterized in that, The beam fixing structure (8) comprises a T-shaped block matched with the dovetail groove (3) and a vertically arranged fixing bolt. The end of the transverse beam (7) is provided with a first through hole (15) through which the fixing bolt passes in the vertical direction. The T-shaped block is detachably arranged in the corresponding dovetail groove (3) and is located directly below the corresponding transverse beam (7). The fixing bolt passes through the first through hole (15) downward, the head of the fixing bolt abuts against the upper side of the rail web of the transverse beam (7), and the lower end of the fixing bolt is fixed on the upper side of the T-shaped block.

6. The milled platform for machining of rails and guard rails according to claim 5, characterized in that, The workpiece fixing structure (9) comprises a pressing plate (91), a pressing bolt (92) and a cushion block (93). The pressing plate (91) is arranged along the left-right direction, and a long circular hole is arranged on the pressing plate (91) along the direction in which the pressing plate (91) is arranged. The long circular hole is located on the left side or the right side of the guard rail (11), one end of the pressing plate (91) presses the left end or the right end of the top of the guard rail (11), and the other end of the pressing plate (91) is provided with the cushion block (93) between the lower side of the other end of the pressing plate (91) and the upper side of the transverse beam (7). The rail web of the transverse beam (7) is provided with a second through hole (16) through which the pressing bolt (92) passes on the left and right sides of the guard rail (11). The pressing bolt (92) passes through the second through hole (16) and the long circular hole upward and is locked by the nut on the upper side of the pressing plate (91). When the outer side of the guard rail (11) is machined, the pressing bolt (92) passes through the second through hole (16) on the inner side of the guard rail (11) upward. The pressing plate (91) is located on the inner side of the guard rail (11), the outer end of the pressing plate (91) presses the inner end of the top of the guard rail (11), and the cushion block (93) is arranged between the inner end of the pressing plate (91) and the upper side of the transverse beam (7). When the inner side of the guard rail (11) is machined, the pressing bolt (92) passes through the second through hole (16) on the outer side of the guard rail (11) upward. The pressing plate (91) is located on the outer side of the guard rail (11), the inner end of the pressing plate (91) presses the outer end of the top of the guard rail (11), and the cushion block (93) is arranged between the outer end of the pressing plate (91) and the upper side of the transverse beam (7). When the inner and outer sides of the guard rail (11) are machined, the cushion block (93) is arranged in different directions.

7. The milled platform for machining of rails and guard rails according to claim 6, characterized in that, The first through hole (15) and the second through hole (16) on the outer side of the guard rail (11) are communicated to form a long circular hole arranged along the left-right direction.

8. The milled platform for machining of rails and guard rails according to claim 6, characterized in that, The pressing bolt (92) is a T-shaped bolt, and the rail web of the transverse beam (7) is provided with an anti-rotation groove (17) matched with the head of the T-shaped bolt on the lower side of the rail web along the left-right direction. The head of the T-shaped bolt is embedded in the anti-rotation groove (17).

9. The milled platform for machining of rails and guard rails according to claim 6, characterized in that, The cushion block (93) is a rectangular block arranged along the front-rear direction, the width of which is the thickness of the guard rail (11) minus the depth of the positioning step (10), and the height of which is the thickness of the guard rail (11); when the inner side of the guard rail (11) is machined, the height direction of the cushion block (93) is arranged vertically; when the outer side of the guard rail (11) is machined, the width direction of the cushion block (93) is arranged vertically.

10. The milled platform for machining of rails and guard rails according to claim 1, characterized in that, The plurality of transverse beams (7) are evenly distributed, the number of the transverse beams (7) is 5-8, and the distance between two adjacent transverse beams (7) is 40-70 cm.

Images