CN209830179U - Turnout switch rail forging and pressing section machining tool - Google Patents
Turnout switch rail forging and pressing section machining tool Download PDFInfo
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- CN209830179U CN209830179U CN201920606510.1U CN201920606510U CN209830179U CN 209830179 U CN209830179 U CN 209830179U CN 201920606510 U CN201920606510 U CN 201920606510U CN 209830179 U CN209830179 U CN 209830179U
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Abstract
The utility model provides a turnout switch rail forging and pressing section processing tool, which comprises a bottom plate fixed on a machine tool sliding table, and a rail head processing mechanism and a rail bottom processing mechanism which are arranged on the bottom plate; during processing, the switch rail is transversely placed on the rail head processing mechanism and inversely placed on the rail bottom processing mechanism; the rail head processing mechanism mainly comprises a rail waist supporting seat arranged AT the bottom of the standard rail, a rail waist pressing assembly arranged on one side of the rail bottom of the AT rail and a rail head jacking assembly arranged on one side of the rail head of the AT rail; the rail bottom processing mechanism mainly comprises a rail top supporting seat arranged AT the bottom of the switch rail, a rail top inner side pressing assembly arranged AT the bottom of the standard rail and a rail bottom pressing assembly arranged above the rail bottom of the AT rail. The utility model relates to a rationally, manufacturing cost is lower, and dress card is comparatively simple and convenient with the operation, can dress card and realize production on ordinary vertical lathe, has avoided adopting the high finished product and the preparation technique degree of difficulty that special plane brought, can accomplish the design production of switch rail forging and pressing section in the short term.
Description
Technical Field
The utility model belongs to the technical field of switch point rail processing technique and specifically relates to a switch point rail forging and pressing section processing frock.
Background
Switches are one of the important components of railways, and the quality of their manufacture is of critical importance. The switch rail parts in the turnout are manufactured and processed by AT short special section steel rails (AT rails for short), and in order to realize butt joint with the standard rail AT the rear end, the heel end of the AT rail needs to be forged into the standard rail type.
The existing forging and pressing technology adopts European introduction technology, and because the shape of the heel end of the AT rail is irregular, in order to ensure the processing quality, small processing allowance needs to be reserved AT each local position during forging and pressing, thus bringing much inconvenience to card installation and processing; and the special non-marking machine tool is adopted, the horizontal and vertical machining main shafts are simultaneously installed, and the complex hydraulic clamping system is also matched, so that the equipment cost is high, the non-marking property is high, the customization period is long, the universality is not realized, and the machining of other products cannot be carried out.
SUMMERY OF THE UTILITY MODEL
To the above problem, the utility model provides a switch point rail forging and pressing section processing frock.
A turnout switch rail forging and pressing section machining tool comprises a bottom plate fixed on a machine tool sliding table, and a rail head machining mechanism and a rail bottom machining mechanism which are arranged on the bottom plate; during processing, the switch rail is transversely placed on the rail head processing mechanism and inversely placed on the rail bottom processing mechanism;
the rail head processing mechanism mainly comprises a first rail waist supporting seat arranged AT the bottom of the standard rail, a second rail waist supporting seat arranged AT the bottom of the AT rail, a rail waist pressing assembly arranged AT one side of the rail bottom of the AT rail and a rail head jacking assembly arranged AT one side of the rail head of the AT rail;
the rail bottom processing mechanism mainly comprises a rail top supporting seat arranged AT the bottom of the switch rail, a rail top inner side pressing assembly arranged AT the bottom of the standard rail and a rail bottom pressing assembly arranged above the rail bottom of the AT rail.
Further, the first rail web supporting seat mainly comprises a long-strip supporting block, a base fixed on the long-strip supporting block at equal intervals and a wedge-shaped seat arranged on the base; and the end part of the long-strip supporting block is provided with a limit stop.
Furthermore, the rail web pressing component mainly comprises supporting tubes fixed on the bottom plate at equal intervals, a thread pressing mechanism arranged on one side of the supporting tubes facing the switch rail, a rail web pressing plate with one end fixed above the supporting tubes and a pressing block arranged at the other end of the rail web pressing plate; the thread pressing mechanism consists of a threaded rod and a nut, and a flat washer is arranged at the top of the nut; the rail web pressing plate is provided with a first through groove, the nut upwards penetrates through the first through groove, the flat washer is positioned above the rail web pressing plate, and the outer diameter of the flat washer is larger than the width of the first through groove;
the rail head jacking assembly mainly comprises a support fixed on the bottom plate at equal intervals, a threaded mandril transversely penetrating through the support and a jacking block arranged at one end of the threaded mandril facing the switch rail.
Furthermore, the railhead processing mechanism further comprises two groups of rail bottom tensioning assemblies arranged at the end parts of the switch rails, each rail bottom tensioning assembly mainly comprises a support fixed on the bottom plate, a tensioning bolt transversely penetrating through the support and a pulling plate arranged at one end, facing the switch rails, of the tensioning bolt, and each pulling plate comprises a plane with a certain gap from the rail bottom and a U-shaped groove for clamping the rail bottom up and down.
Furthermore, the brackets of the two groups of rail base tensioning assemblies are respectively provided with a limiting bolt transversely penetrating through the brackets and arranged on the adjacent side of the pull plate, and the end of the rod part of the limiting bolt is attached to a rail base (a forged blank surface).
Furthermore, the rail top supporting seat is provided with a groove matched with the rail top in shape; the rail bottom pressing assembly comprises a rail bottom pressing plate, pressing screw rods are mounted on two sides of the rail bottom pressing plate, and the bottoms of the pressing screw rods are fixed on the bottom plate through gaskets.
Furthermore, the rail top inner side pressing assembly mainly comprises a supporting plate which is in contact with the rail top supporting seat and a rail top inner side pressing plate which is hinged with the supporting plate, a second through groove is formed in the rail top inner side pressing plate, a rail top inner side pressing bolt penetrates through the second through groove from bottom to top, and the rail top inner side pressing bolt is fixed above the second through groove through a gasket and a nut.
The utility model has the advantages that: the design is reasonable, the manufacturing cost is low, the clamping and the operation are simple and convenient, the clamping can be carried out on a common vertical machine tool, the production is realized, the high cost and the manufacturing technical difficulty caused by adopting a special machine are avoided, the corresponding process steps are matched, and the shaping production of the switch rail forging and pressing section can be completed in a short period.
Drawings
FIG. 1 is the whole of a turnout switch rail forging and pressing section machining tool;
FIG. 2 is a schematic view of the rail web support base;
FIG. 3 is a schematic diagram of the AT rail segment configuration in the railhead processing mechanism;
FIG. 4 is a schematic structural view of the rail foot tensioning assembly;
FIG. 5 is a schematic view of the rail top support and rail bottom hold down assembly;
fig. 6 is a schematic diagram of the structure of the rail head inner side compression assembly.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings, and it is to be understood that the described embodiments are only some embodiments, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art all belong to the protection scope of the present invention.
Example 1
A turnout switch rail forging and pressing section processing tool comprises a base plate 1 fixed on a machine tool sliding table, and a rail head processing mechanism and a rail bottom processing mechanism which are arranged on the base plate, as shown in figure 1; during processing, the switch rail is transversely placed on the rail head processing mechanism, and is inversely placed on the rail bottom processing mechanism.
The railhead processing mechanism mainly comprises a first rail web supporting seat 2A arranged AT the bottom of the standard rail, a second rail web supporting seat 2B arranged AT the bottom of the AT rail, a rail web pressing component 3 arranged AT one side of the rail bottom of the AT rail, a railhead jacking component 4 arranged AT one side of the railhead of the AT rail and a railbottom tensioning component 8 arranged AT one side of the rail bottom of the standard rail.
Specifically, in this embodiment, the first rail web supporting seat 2A mainly comprises a long supporting block 201, a base 202 fixed on the long supporting block at equal intervals, and a wedge seat 203 arranged on the base; the end of the strip supporting block 201 is provided with a limit stop 204, as shown in fig. 2.
Specifically, in the present embodiment, as shown in fig. 3, the rail web pressing assembly 3 mainly includes a supporting tube 301 fixed on the bottom plate at equal intervals, a threaded pressing mechanism 302 disposed on one side of the supporting tube facing the switch rail, a rail web pressing plate 303 with one end fixed above the supporting tube, and a pressing block 304 disposed at the other end of the rail web pressing plate; the thread pressing mechanism 302 consists of a threaded rod 3021 and a nut 3022, and a flat washer 3023 is arranged at the top of the nut; a first through groove 3031 is formed in the rail web pressing plate 303, the threaded rod 3021 penetrates through the first through groove upwards, the flat washer 3023 is located above the rail web pressing plate, and the outer diameter of the flat washer is larger than the width of the first through groove; the railhead jacking assembly 4 mainly comprises a support 401 fixed on the bottom plate at equal intervals, a threaded mandril 402 transversely penetrating through the support, and a jacking block 403 arranged at one end of the threaded mandril facing the switch rail.
Specifically, in this embodiment, as shown in fig. 4, the rail foot tensioning assembly 8 mainly comprises a bracket 801 fixed on the base plate, a tensioning bolt 802 transversely passing through the bracket, and a pulling plate 803 disposed at one end of the tensioning bolt facing the point rail, wherein the pulling plate 803 includes a plane 8031 having a certain gap with the rail foot and a U-shaped groove 8032 for vertically clamping the rail foot; limiting bolts 804 transversely penetrating through the two groups of rail base tensioning assemblies are arranged on the supports of the two groups of rail base tensioning assemblies and are arranged on the close sides of the pull plates, and the end heads of rod parts of the limiting bolts are attached to a rail base (forged blank surface); after the limiting bolt is fixed, the tensioning bolt is screwed down, so that the workpiece can be effectively prevented from moving.
The rail bottom processing mechanism mainly comprises a rail top supporting seat 5 arranged AT the bottom of the switch rail, a rail top inner side pressing assembly 6 arranged AT the bottom of the standard rail and a rail bottom pressing assembly 7 arranged above the rail bottom of the AT rail.
Specifically, in this embodiment, as shown in fig. 5, the rail top supporting seat 5 is provided with a groove 501 matching with the rail top shape; the rail bottom pressing component 7 comprises a rail bottom pressing plate 701, and a pressing screw 702 and a fastening nut 703 are installed on two sides of the rail bottom pressing plate.
Specifically, in this embodiment, as shown in fig. 6, the rail head inner side pressing assembly 6 mainly includes a abutting plate 601 contacting with the rail head supporting seat and a rail head inner side pressing plate 602 hinged to the abutting plate, a second through groove 603 is provided on the rail head inner side pressing plate, and a rail head inner side pressing bolt 604 passes through the second through groove from bottom to top and is fixed above the second through groove by a washer 605 and a nut 606.
The turnout switch rail processing flow is as follows:
1. the workpiece is transversely placed on the rail head processing mechanism, a non-forging and pressing section (AT rail section) of the workpiece is firstly clamped, the rail bottom and the rail web of the workpiece are taken as positioning references, the workpiece is pressed through the rail web pressing component and is pressed tightly through the rail head pressing component, and the rail web supporting seat with different heights can be replaced to take account of the left and right switch rails; then clamping a forging section (a standard rail section), and aligning and clamping the forging section by utilizing a rail bottom tensioning assembly, a height-adjustable rail waist supporting seat, a rail waist pressing assembly and a dial indicator; after alignment is finished, firstly processing a skip hole, then using a rail-shaped milling cutter to carry out tool setting from the upper side, the lower side and the rail top of the rail head, and processing the shape of the forging section rail head;
2. the rail bottom is placed on a rail bottom processing mechanism upwards, a non-forging section of a workpiece is clamped, a centering vice 9 is matched with a rail top supporting seat to position a rail head, and a rail bottom pressing component of two fixed points is used for pressing and aligning the rail bottom, so that the length direction of the workpiece is parallel to the coordinate axis of a machine tool, and the bottom surface of the rail is parallel to a workbench; then clamping the forging and pressing section, matching the centering vice with the rail top supporting seat, and pressing the rail head from the inner side of the rail head through the rail top inner side pressing assembly; after the clamping and alignment are finished, a phi 200 circumference milling cutter is adopted to mill the bottom surface and two side edges of the rail, and the end head of the workpiece is milled.
The utility model discloses a processing frock has guaranteed that forging and pressing section railhead shape is unanimous with the smooth-going connection of non-forging and pressing section, has guaranteed that the straightness that hangs down of railhead width and thickness, rail height, railhead side for the symmetry of railhead side, forging and pressing section rail bottom surface for the height and the depth of parallelism of non-forging and pressing section rail bottom surface, rail end all accord with corresponding national technical standard and inspection requirement.
Finally, it should also be noted that the above list is only one specific embodiment of the present invention. Obviously, the present invention is not limited to the above embodiments, and many modifications are possible. All modifications which can be derived or suggested by a person skilled in the art from the disclosure of the invention should be considered as within the scope of the invention.
Claims (8)
1. A turnout switch rail forging and pressing section machining tool is characterized by comprising a bottom plate fixed on a machine tool sliding table, and a rail head machining mechanism and a rail bottom machining mechanism which are arranged on the bottom plate; during processing, the switch rail is transversely placed on the rail head processing mechanism and inversely placed on the rail bottom processing mechanism;
the rail head processing mechanism mainly comprises a first rail waist supporting seat arranged AT the bottom of the standard rail, a second rail waist supporting seat arranged AT the bottom of the AT rail, a rail waist pressing assembly arranged AT one side of the rail bottom of the AT rail, a rail head jacking assembly arranged AT one side of the rail head of the AT rail and a rail bottom tensioning assembly 8 arranged AT one side of the rail bottom of the standard rail;
the rail bottom processing mechanism mainly comprises a rail top supporting seat arranged AT the bottom of the switch rail, a rail top inner side pressing assembly arranged AT the bottom of the standard rail and a rail bottom pressing assembly arranged above the rail bottom of the AT rail.
2. The switch blade forging and pressing segment processing tool as claimed in claim 1, wherein said first web support seat is mainly composed of an elongated support block, a base fixed on said elongated support block at equal intervals, and a wedge seat disposed on said base.
3. The switch blade forging and pressing segment processing tool as claimed in claim 2, wherein a limit stop is arranged at the end of the strip support block.
4. The turnout switch rail forging and pressing section machining tool according to claim 1, wherein the rail web pressing assembly mainly comprises supporting tubes fixed on the bottom plate at equal intervals, a thread pressing mechanism arranged on one side of the supporting tubes facing the switch rail, a rail web pressing plate with one end fixed above the supporting tubes and a pressing block arranged at the other end of the rail web pressing plate; the thread pressing mechanism consists of a threaded rod and a nut, and a flat washer is arranged at the top of the nut; the rail web pressing plate is provided with a first through groove, the threaded rod upwards penetrates through the first through groove, the flat washer is positioned above the rail web pressing plate, and the outer diameter of the flat washer is larger than the width of the first through groove;
the rail head jacking assembly mainly comprises a support fixed on the bottom plate at equal intervals, a threaded mandril transversely penetrating through the support and a jacking block arranged at one end of the threaded mandril facing the switch rail.
5. The turnout tongue forging and pressing section machining tool according to claim 4, wherein the rail bottom tensioning assembly mainly comprises a support fixed on the bottom plate, a tensioning bolt transversely penetrating through the support and a pulling plate arranged at one end of the tensioning bolt facing the tongue, and the pulling plate comprises a plane with a certain gap from the rail bottom and a U-shaped groove for clamping the rail bottom up and down.
6. The turnout switch rail forging and pressing section machining tool according to claim 5, wherein the brackets of the two sets of rail foot tensioning assemblies are respectively provided with a limiting bolt transversely penetrating through the brackets and arranged on the similar side of the pulling plate, and the end of the rod part of the limiting bolt is attached to the rail foot of the steel rail.
7. The turnout tongue forging and pressing section machining tool according to claim 1, wherein the rail top support seat is provided with a groove matched with the shape of the rail top; the rail bottom pressing component comprises a rail bottom pressing plate, and pressing screw rods and fastening nuts 703 are installed on two sides of the rail bottom pressing plate.
8. The turnout switch rail forging and pressing section machining tool according to claim 1 or 7, wherein the rail top inner side pressing assembly mainly comprises a butt plate in contact with the rail top supporting seat and a rail top inner side pressing plate hinged to the butt plate, a second through groove is formed in the rail top inner side pressing plate, and a rail top inner side pressing bolt penetrates through the second through groove from bottom to top and is fixed above the second through groove through a gasket and a nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920606510.1U CN209830179U (en) | 2019-04-29 | 2019-04-29 | Turnout switch rail forging and pressing section machining tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920606510.1U CN209830179U (en) | 2019-04-29 | 2019-04-29 | Turnout switch rail forging and pressing section machining tool |
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| Publication Number | Publication Date |
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| CN209830179U true CN209830179U (en) | 2019-12-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920606510.1U Active CN209830179U (en) | 2019-04-29 | 2019-04-29 | Turnout switch rail forging and pressing section machining tool |
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| Country | Link |
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| CN (1) | CN209830179U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111590123A (en) * | 2020-05-28 | 2020-08-28 | 安徽中志轨道交通装备制造有限公司 | Switch AT switch rail machining and positioning tool and using method thereof |
-
2019
- 2019-04-29 CN CN201920606510.1U patent/CN209830179U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111590123A (en) * | 2020-05-28 | 2020-08-28 | 安徽中志轨道交通装备制造有限公司 | Switch AT switch rail machining and positioning tool and using method thereof |
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