CN113664140A

CN113664140A - Special-shaped steel rail forging and pressing rail bottom die operating mechanism

Info

Publication number: CN113664140A
Application number: CN202111100777.1A
Authority: CN
Inventors: 赵小军; 刘江; 吴钟敏; 薛喜丽; 张宜
Original assignee: China Railway Baoji Bridge Group Co Ltd; China Railway Track Equipment Co Ltd
Current assignee: China Railway Baoji Bridge Group Co Ltd; China Railway Track Equipment Co Ltd
Priority date: 2021-09-18
Filing date: 2021-09-18
Publication date: 2021-11-19

Abstract

The operating mechanism for the forging and pressing rail bottom die of the special-shaped steel rail is provided with an upper die frame; the rear end of the upper die frame is provided with a rail bottom rolling die; a servo cylinder is arranged at the bottom side of the upper die frame in parallel with the rail bottom rolling die at intervals; the servo cylinder body axially performs telescopic action on the rail bottom pressing die; the execution tail end of the servo cylinder body is detachably connected with the power input end of the connecting part of the mould; the power output end of the mould connecting part is connected with the rail bottom rolling mould; the power input end of the mould connecting part is also connected with the execution tail end of the push rod; when the actuating end of the servo cylinder is detached from the die connecting part, the push rod is used for manually pushing and pulling the rail bottom die to displace. The invention solves the technical problems of high frequency of production stop maintenance, poor manual operation environment, labor waste, time waste and labor waste, poor product quality consistency and low production efficiency of manual push-pull operation; the forging device has the advantages of reasonable structure, convenience in installation and maintenance, convenience in design and construction, and capability of being widely applied to the field of forging of the heel end of the steel rail piece.

Description

Special-shaped steel rail forging and pressing rail bottom die operating mechanism

Technical Field

The invention belongs to the technical field of metal pressed steel rail forging and pressing, and particularly relates to an operating mechanism of a special-shaped steel rail forging and pressing rail bottom die.

Background

The forging of the special-shaped steel rail refers to a forging process of forging a section form with a certain length at the end part of the steel rail into another type of steel rail section blank, and is also called as the forging of the heel end of the steel rail. The composite extrusion die used for forging and manufacturing the special-shaped steel rail is a main die production process for a long time in the field due to the flexibility, convenience, combination operation, rich use experience, lower daily use and maintenance cost, wide range of equipment performance operation precision and requirements and small limitation.

At present, a compound extrusion die mainly comprises a rail head die, a rail web die and a rail bottom die, and the forming step is mainly divided into a blank making step and a shaping step. The forming principle is that the rail head of the rail piece is turned upside down and is put into a die, and the forming sequence of the rail head, the rail web and the rail bottom is carried out, and the excess metal amount is finally concentrated to the rail bottom from the section angle so as to form and accumulate the rail head, the rail web and the rail bottom. In the step of making the rail base, the number of the step of making the rail base is the sum of the number of the other steps, and about 5 to 9 steps of making the rail base, so that the step of making the rail base is a main step, and a mold for making the rail base is a main mold.

In the prior art, the rail bottom mould adopts a long-distance push rod operated manually to push and pull and position the rail bottom mould. The up-down running time of a single-step single press is about 5 seconds, the manual die changing time is about 3 seconds, the continuous operation time of a single step only can reach 40-70 seconds, more than 60 products are produced every day, the operation time of a single continuous machine tool is about 8 minutes, rail parts need to be self-checked and recorded one by one, die operation and workpiece self-checking are carried out by the same person on duty, so that die adjustment and emergency handling can be carried out in time, and labor, time and labor are wasted. In addition, the operation precision requirement of the rail bottom pressing step die reaches 2mm, during manual operation, the upper die and the lower die of the press are manually and accurately positioned in the step die changing and the die position, and the factors of high temperature, high oil smoke, high shift yield, high noise, high vibration, high frequency, long distance vision, long labor intensity duration and the like take labor and time for operation, so that the continuous, accurate, continuous and cooperative operation is difficult to stably and continuously produce aiming at different workpieces. In view of this, the following technical solutions are proposed.

Disclosure of Invention

The technical problems solved by the invention are as follows: the utility model provides a dysmorphism rail forging and pressing rail end mould operating device, the artifical push-and-pull push rod operation of special-shaped rail forging and pressing rail end mould is solved, and it is high to stop production to maintain the frequency, and manual operation environment is poor, take a lot of work and waste time and energy, product quality uniformity is poor, the technical problem that production efficiency hangs down.

The technical scheme adopted by the invention is as follows: the special-shaped steel rail forging and pressing rail bottom die operating mechanism is provided with an upper die frame; the center of the bottom of the rear end of the upper die frame is matched with a rail bottom rolling die in a sliding manner along the axial direction; a servo cylinder is arranged at the bottom side of the upper die frame in parallel with the rail bottom rolling die at intervals; the servo cylinder body axially performs telescopic action on the rail bottom pressing die; the execution tail end of the servo cylinder body is detachably connected with the power input end of the connecting part of the mould; the power output end of the mould connecting part is connected with the rail bottom rolling mould; the power input end of the mould connecting part is also connected with the execution tail end of a push rod; when the actuating end of the servo cylinder is removed from the power input end of the die attachment portion, the push rod is used to manually push and pull the operating rail foot to press the die for axial linear displacement.

In the above technical solution, further: a T-shaped sliding groove is formed in the center of the bottom of the rear end of the upper die frame; the rail bottom pressing die is in sliding friction fit with the T-shaped sliding groove so as to linearly move along the central axis of the upper die frame.

In the above technical solution, further: a plurality of periphery reinforcing members are uniformly distributed on the outer side of the servo cylinder body at equal intervals; the servo cylinder body is installed in a reinforcing mode through a peripheral reinforcing piece; a protective cover is arranged on the outer side of the servo cylinder body; the protective cover is used for isolating high-temperature steam, thermal radiation, thermal convection, workpiece oxide skin dust debris and foreign matters; the protective cover is provided with an air pipe; the wind pipe is used for air cooling of the protective cover 5-inner servo cylinder body.

In the above technical solution, further: a transition plate is detachably mounted at a fastening type position of a hoisting hole beside the upper die frame, the transition plate bears and mounts the servo cylinder body and an actuating mechanism related to the push rod, and is provided with a lifting lug for hoisting the transition plate and all bearing parts on the transition plate after being integrally removed; the transition plate is fixedly provided with a plurality of axial guide sleeves, and the push rod is in coaxial sliding friction fit with the plurality of axial guide sleeves; the push rod is provided with scale marks which are provided with equivalent consubstantial pointers, and the equivalent consubstantial pointers are fixedly arranged on the outer side of the transition plate; the manual operation end of the push rod is provided with a quick-release flange structure, and the push rod is detachably connected with the extension section push rod through the quick-release flange structure.

In the above technical solution, further: the push rod is a double-rod balance structure which is parallel at an upper interval and a lower interval; the outer ends of the push rods of the double-rod balance structure share one push handle.

In the above technical solution, further: the power input end of the die connecting part is provided with a vertically arranged embedding plate, and the middle part of the vertical side wall of the inner side of the embedding plate is provided with a U-shaped groove; the executing tail end of the servo cylinder body is provided with a horizontally arranged T-shaped embedded joint; the horizontal rod body adaptation that the T type inlayed the dress joint inserts U type inslot, and the T type inlays the vertical portion joint U type groove in dress joint end to inlay the dress joint through the T type and realize that servo cylinder body carries out terminal and the dismantlement of inlaying the dress board is connected.

In the above technical solution, further: one side of the embedded plate is fixedly connected with a push rod power output end; the other side of the embedding plate is connected with a rail bottom rolling die through an L-shaped corner rod body assembly.

In the above technical solution, further: the L-shaped corner passing rod body assembly consists of a transverse connecting rod, a longitudinal connecting rod, a transverse corner, a longitudinal right-angle corner and a radial free movable connector; wherein the transverse corner is connected with the embedded plate; the power input end of the transverse connecting rod is inserted and adjusted into the transverse through hole of the transverse corner so as to transversely adjust and lock the distance between the center line of the rail bottom rolling die and the stroke center line of the servo cylinder; the power output end of the transverse connecting rod is inserted into one end of the longitudinal right-angle corner, and the power input end of the longitudinal connecting rod is inserted into the longitudinal through hole at the other end of the longitudinal right-angle corner; the power output end of the longitudinal connecting rod is in threaded connection with the outer end of the axial center line of the rail bottom rolling die through a radial free movable interface; the longitudinal right-angled corners and the longitudinal connecting rods 7 are used for adjusting and locking the longitudinal mold position of the rail bottom rolling mold.

In the above technical solution, further: the radial freely movable interface is provided with an outer square structure; one end of the radial free movable interface is rotatably connected with the power output end of the longitudinal connecting rod; the other end of the radial free movable interface is provided with an external thread rod; the external thread rod is screwed and connected with an internal thread hole formed in the center of the end part of the rail bottom rolling die in an adaptive mode.

In the above technical solution, further: a threaded rod I is arranged at the outer side end of the transverse corner; the transverse corner is connected with an adjusting locking thread sleeve arranged on the vertical side wall of the embedding plate through a threaded rod I; the longitudinal connecting rod is inserted into the longitudinal right-angle corner, and a threaded rod II is arranged at the insertion end of the longitudinal connecting rod; the threaded rod II is screwed and connected with two adjusting and locking threaded sleeves arranged at the outer side end of the longitudinal right-angle corner in an adaptive manner; two adjusting and locking sliding sleeves are used for locking the longitudinal position of the longitudinal connecting rod.

Compared with the prior art, the invention has the advantages that:

1. the automatic operation mode of the rail bottom mould can ensure the rail bottom forming quality, improve the production efficiency, ensure the rail bottom forming and positioning accuracy, realize quantitative production, improve the action control accuracy and the cooperativity, thoroughly eliminate the problem of product quality fluctuation caused by manual operation and realize the automatic operation of the rail bottom mould.

2. In the automatic mode of the rail bottom die, the servo mechanism sets point position parameters according to the process steps of the rail bottom die, and the point position action is interlocked with the operation online of the press machine to form an automatic control mode which takes the die action as a core and the press machine operation as a node, so that the working efficiency is improved, the product quality is ensured, and the working environment is improved; according to the rail bottom die, under a manual mode, the rail bottom rolling plate is operated according to the plate number buttons, and the stop position is accurate under the combined action of the scale marks, so that the manual rolling operation can be switched in time during fault maintenance, and the production stop is avoided.

3. The push rod has the characteristics of deformation resistance and fatigue resistance, and can strictly control the inertia and elastic deformation of the push rod; the protective cover has the advantages of dust prevention, shock resistance and heat insulation, and can be fully suitable for the operating environment.

4. The invention can fundamentally stabilize the product quality and the production efficiency, optimize the controllability of the die forming process, create quantized operation space for material forming and process control from temperature, time, pressure, speed, connection action, position and integration, and greatly improve the process control of the forging process.

5. The steel rail turnout forging device is reasonable in structure, simple, practical, strong in universality, convenient to install and maintain, convenient to design and construct, suitable for production of steel rail turnouts and capable of being widely applied to the field of forging of heel ends of steel rail pieces; the device has wide popularization and application potential in the switch industry and the related multi-platform field of the press, is an equipment development form which is always desired in the industry for many years, and has important significance for improving the equipment application level of the industry and promoting the progress of the switch processing technology.

6. The invention is completely suitable for working condition factors such as high temperature, high oil smoke, high shift yield, high noise, high vibration, high frequency, long distance visual field, long labor intensity duration and the like, and solves the difficult problem that different workpieces are difficult to stably and continuously operate on physical strength, continuity, accuracy, continuity and cooperativity in the original manual operation all the time.

Drawings

FIG. 1 is a perspective view of the present invention in use after application to a compound extrusion die and press;

FIG. 2 is a perspective view of the co-extrusion die of FIG. 1;

FIG. 3 is a schematic longitudinal sectional structure view of a composite extrusion mold in a mold closing state;

FIG. 4 is a view showing a state of use of a composite extrusion die blank-making station;

FIG. 5 is a view showing a state of use of a shaping station of the coextrusion die;

FIG. 6 is a schematic view of the mounting structure of the rail web pre-forging die and the rail web finish-forging die on the die change frame in FIG. 4 and FIG. 5;

FIG. 7 is a side elevational view of the rail web mold;

FIG. 8 is another side elevational view of the rail web mold;

FIG. 9 is a cross-sectional view of one length of the adjustable mounting screw of the rail web mold of FIG. 7 and FIG. 8;

FIG. 10 is another cross-sectional length view of the adjustable mounting screw of the rail web mold of FIG. 7 and FIG. 8;

FIG. 11 is a schematic longitudinal sectional view of a rail foot mold employing a threaded connection push rod;

fig. 12 is a schematic view of an exemplary application of five-station five-rolling stop positions of a rail bottom rolling die;

FIG. 13 is a graph of a press stroke curve, a pressure curve, and a compound extrusion die station;

FIG. 14 is a partial perspective view of the push rod of the present invention;

FIG. 15 is a perspective view of the push rod connecting rail foot rolling mold of the present invention;

FIG. 16 is a bottom perspective view of the co-extrusion die of the present invention;

FIG. 17 is a perspective view of the servo cylinder shield of the present invention;

FIG. 18 is a schematic perspective view of the present invention;

FIG. 19 is an enlarged detail view of part A of FIG. 18;

FIG. 20 is an enlarged detail view of part B of FIG. 18;

FIG. 21 is a schematic view of an inside perspective of the present invention;

FIG. 22 is an enlarged detail view of section C of FIG. 21;

FIG. 23 is an enlarged detail view of section D of FIG. 18;

in the figure: 1-composite extrusion die, 2-press; 3-upper die carrier, 4-bidirectional cylinder, 5-servo cylinder, 6-internal threaded hole, 7-push rod, 8-axial guide sleeve, 9-screw, 10-transition plate, 11-railhead die, 12-rail web pre-forging die, 13-rail web final forging die, 14-rail bottom rolling die, 15-rail bottom shaping die and 16-lifting lug; 101-a mould platform, 102-a platform front extension section, 103-a platform rear extension section, 104-a blank making station, 105-a shaping station, 106-a mould changing frame; 301-T shaped chute; 5-1 circle of reinforcing members, 5-2 protective covers and 5-3T-shaped embedded joints; 601-rail bottom mold connecting plate, 602-rail bottom mold mounting screw; 7-1 scale scales, 7-2 equivalent consubstantial pointers, 7-3 quick-release flange structures and 7-4 extension section push rods; 702-a pushing handle; 703-a mould connection part; 7031-embedded plate, 7032-U-shaped groove; 7033-transverse connecting rod, 7034-longitudinal connecting rod, 7035-transverse corner, 7036-longitudinal right-angle corner and 7037-radial free movable joint; 7038-adjusting locking thread sleeve; 901-three hole connecting rod, 902-retaining ring.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to fig. 1 to 23 in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

(as shown in fig. 14 and fig. 15) the special-shaped steel rail forging rail base mould operating mechanism is provided with an upper mould frame 3; the rail bottom rolling die 14 is installed at the center of the bottom of the rear end of the upper die frame 3 in an axially sliding and adaptive mode.

In the above embodiment, further: a T-shaped chute 301 is arranged in the center of the bottom of the rear end of the upper die frame 3; the rail foot presses the die 14 into sliding frictional fit with the T-shaped chute 301 to move linearly along the central axis of the upper frame 3. The problem of unbalance loading is prevented when the die is changed by additionally arranging the T-shaped sliding groove 301.

(as shown in fig. 18), the servo cylinder 5 is arranged at the bottom side of the upper die frame 3 and is parallel to the rail bottom rolling die 14 at intervals, the servo cylinder 5 is parallel to the rail bottom rolling die 14 at intervals, and the servo cylinder 5 performs telescopic action on the rail bottom rolling die 14 along the axial direction. The main principle is as follows: and the transmission and communication of power, speed, position and control signals of the rail bottom die are realized through the servo cylinder 5. Simultaneously: side is located at 5 interval parallels of servo cylinder body for servo cylinder body 5 avoids interfering with other auxiliary assembly of mould: if the interference between the forging die and a feeding system, a graphite spraying and lubricating system, a die changing system and a forging demoulding auxiliary system is avoided.

(as shown in fig. 21) in the above embodiment, further: a plurality of periphery reinforcements 5-1 are uniformly distributed on the outer side of the servo cylinder body 5 at equal intervals; the servo cylinder 5 is installed by reinforcing the periphery reinforcing piece 5-1.

Therefore, the servo cylinder body 5 is fully suitable for vibration working conditions of up-and-down operation of a press, pressure loading, workpiece demoulding and the like in the forging and pressing process by a plurality of circumferential reinforcing members 5-1 measures, and the cylinder body is ensured to be stably and firmly installed.

(as shown in fig. 17) the outer side of the servo cylinder 5 is provided with a protective cover 5-2; the shield 5-2 is used to isolate high temperature steam, thermal radiation, thermal convection, workpiece scale dust debris, and foreign matter. The appearance of the protective cover 5-2 is simply utilized to prevent the rail piece, the mold and the graphite water vapor hot air flow from rising and passing through the servo cylinder body 5 to be in direct contact, so that a certain isolation effect of heat source, water vapor, oil stain and flying dust is achieved.

Furthermore, further: the protective cover 5-2 is provided with an air pipe; the air pipe is used for air cooling of the servo cylinder 5 in the protective cover 5-2. When the air cooling servo cylinder is used, if the ambient heat flow causes the operation fault of the servo cylinder 5, the air pipe is added to guide the outside clean and normal-temperature air flow into the protective cover 5-2 to form positive pressure from inside to outside, the servo cylinder 5 is cooled by air cooling, and the normal working temperature, namely-10 to 100 ℃, of the servo cylinder is ensured, so that the air cooling servo cylinder is fully suitable for the operation environment.

(see fig. 18, 19) the servo cylinder 5 is provided with an end portion detachably connected to a power input end of the die attaching portion 703. The power output end of the die connecting part 703 is connected with the rail bottom rolling die 14. The power input end of the die connecting part 703 is also connected with the execution tail end of a push rod 7; the push rod 7 is used for manual pushing and pulling of the operation rail foot for axial linear displacement of the pressing die 14 after the actuating end of the servo cylinder 5 is removed from the power input end of the die attachment portion 703.

The invention fully retains the manual operation functionality of the existing manually operated push rod 7, and the operation does not interfere with the automatic use function of the automatic mode structure, so that the manual rolling operation mode can be switched in time during fault maintenance, the production stop is avoided, and the productivity is improved.

(as shown in fig. 18) in the above embodiment, further: a transition plate 10 is detachably mounted at the position of a hoisting hole at the side of the upper die frame 3 in a fastening mode, and the transition plate 10 bears and mounts the servo cylinder body 5 and an actuating mechanism related to the push rod 7.

Therefore, the transition plate 10 is arranged at the original hoisting hole of the upper die frame 3, so that the non-interference, non-processing and non-welding type nondestructive installation between the servo cylinder body 5 and the upper die frame 3 is realized, and the assembly and disassembly are convenient. Actuating mechanisms related to the servo cylinder body 5 and the push rod 7 are arranged on the transition plate 10, and different die set tools can meet the mounting, dismounting and mounting requirements of dies of different models by adjusting or replacing the transition plate 10.

On the basis of the above steps: the transition plate 10 is provided with a lifting lug 11, and the lifting lug 11 is used for lifting the transition plate 10 and all the bearing parts on the transition plate after being integrally removed. The whole transfer of mechanism can be realized, and the device is convenient, fast and efficient.

(as shown in fig. 21) the transition plate 10 is fixedly provided with a plurality of axial guide sleeves 8, and the push rod 7 is in coaxial sliding friction fit with the plurality of axial guide sleeves 8. The stroke range sets up two at least guide sleeve 8, when guaranteeing the direction precision, its direction frictional force that has significantly reduced to provide sharp direction, make things convenient for the stable displacement of mould to control.

(as shown in fig. 20), the push rod 7 is provided with a scale 7-1, the scale 7-1 is provided with an equivalent consubstantial pointer 7-2, and the equivalent consubstantial pointer 7-2 is fixedly arranged on the outer side of the transition plate 10.

The one-body unique equivalent one-body pointer 7-2 and the scale marks 7-1 in the automatic and manual control modes ensure equivalent control of the rail bottom mold positions in the two modes, and ensure consistency of product quality produced in the manual mode.

(as shown in fig. 18 and 21) the manual operating end of the push rod 7 is provided with a quick-release flange structure 7-3, and the push rod 7 is detachably connected with the extension push rod 7-4 through the quick-release flange structure 7-3. The quick-release flange structure 7-3 facilitates the organic combination and the stable transition of the invention and the original manually operated push rod, the invention fully considers the linear guide, the reliable connection and the operation part of the push rod 7 on the basis of the fixed installation of the servo cylinder body, the quick-release flange structure 7-3 is arranged on the outer side of the original operator operation end of the servo cylinder body, the extension section push rod 7-4 is connected through the quick-release flange structure 7-3, the remote operation is convenient, the interference is avoided, the high temperature region is far away, and the operation environment is more comfortable and safer.

It should be noted that: the extension section push rod 7-4 at the rear end of the quick-release flange structure 7-3 is connected with the flange through a simple screw, so that the functions of assembling and quick-release are realized when the lengthened push rod is used. In an automatic mode, namely when the servo cylinder 5 is driven to operate, any extension section push rod 7-4 is not arranged on the outer side of the flange. When the equipment is in failure and cannot be repaired in time, the manually lengthened extension section push rod 7-4 is installed for emergency so as to realize manual emergency operation. In addition, in the equipment debugging stage, the matching and debugging stage of the automatic operation mode of the equipment and the original manual mode, and in the matching and learning process, the operation mode of the manual push rod 7 is equivalent to the automatic operation position of the servo cylinder 5 in a same body, so that the parameter formula driven by the servo cylinder 5 is convenient to search, and the operation and debugging of the servo cylinder 5 equipment are more reliable and convenient. On one hand, the restorable production of the rail bottom mold position and parameters is conveniently carried out manually in the initial stage of the project, and meanwhile, the parameters are automatically refined in advance for the later stage; on the other hand, during automatic operation, sudden situations are handled, manual operation providing conditions are recovered in time, and the functions of automatic and manual operation and the like of the mold in automatic and manual modes are achieved.

In the above embodiment, further: the push rod 7 is a double-rod balance structure which is parallel at an upper interval and a lower interval; the outer ends of the push rods 7 of the double-rod balance structure share one push handle 702. The linear guide of the servo cylinder body 5 adopts a double-rod balance structure, so that the guide stability of the push rod is greatly increased compared with a single-rod mode, the structural rigidity of the push rod is improved, and the push rod is prevented from being broken.

(as shown in fig. 19 and 22) in the above embodiment, further: the power input end of the die connecting part 703 is provided with a vertically arranged embedded plate 7031, and the middle part of the inner vertical side wall of the embedded plate 7031 is provided with a U-shaped groove 7032; the execution tail end of the servo cylinder body 5 is provided with a T-shaped embedded joint 5-3 which is horizontally arranged; the horizontal rod body of the T-shaped embedded joint 5-3 is inserted into the U-shaped groove 7032 in a matching mode, the vertical part of the tail end of the T-shaped embedded joint 5-3 is clamped with the U-shaped groove 7032, and therefore the tail end of the servo cylinder body 5 is detachably connected with the embedded plate 7031 through the T-shaped embedded joint 5-3. The embedded type is adopted, so that the execution tail end of the servo cylinder body 5 can be loosened at any time, and the switching between a manual mode and an automatic mode is completed.

It can also be seen that: after the embedded plate 7031 removes the execution tail end of the servo cylinder 5 from the U-shaped groove 7032, the servo cylinder 5 is not integrally connected with the push rod 7, and the push rod 7 is manually pushed and pulled to realize power driving of the rail bottom mold. Therefore, the power switching and the mode switching driven by manpower and the servo cylinder body 5 are realized, and the function of emergency treatment even if the personnel is emergency is realized.

In addition, the automatic servo port of the servo cylinder body 5 adopts a form that the embedded plate 7031 is connected with the T-shaped embedded joint 5-3, so that the structural design space is effectively reduced, and the automatic and manual push rod modes of the servo cylinder body 5 can be quickly switched for the need from time to time.

(fig. 18) in the above embodiment, further: one side of the embedded plate 7031 is fixedly connected with the power output end of the push rod 7; the other side of the embedded plate 7031 is connected with the rail bottom rolling die 14 through an L-shaped corner rod body component. Adopt L type corner body of rod subassembly to connect the rail end and roll pressure mould 14, can realize the installation of noninterference.

(fig. 19) in the above embodiment, further: the L-shaped passing corner rod body assembly consists of a transverse connecting rod 7033, a longitudinal connecting rod 7034, a transverse corner 7035, a longitudinal right-angle corner 7036 and a radial free movable joint 7037.

Wherein, the transverse corner 7035 is connected with the embedded plate 7031; the power input end of the transverse connecting rod 7033 is inserted and adjusted into a transverse through hole of the transverse corner 7035 to transversely adjust and lock the distance between the center line of the rail bottom rolling die 14 and the stroke center line of the servo cylinder 5; the power output end of the transverse connecting rod 7033 is inserted into one end of the longitudinal right-angle corner 7036, and the power input end of the longitudinal connecting rod 7034 is inserted into a longitudinal through hole at the other end of the longitudinal right-angle corner 7036; the power output end of the longitudinal connecting rod 7034 is in threaded connection with the outer end of the axial center line of the rail bottom rolling die 14 through a radial free movable joint 7037; the longitudinal right angle corners 7036 and the longitudinal links 7034 are used to adjust and lock the longitudinal die position of the rail foot rolling die 14.

Servo cylinder body 5 rolls with the rail end and presses the L type corner body of rod subassembly connection structure of mould 14: the distance adjustment of the longitudinal connecting rod and the transverse connecting rod in multiple axial length directions can be realized at each corner position by the transverse corner 7035 and the longitudinal right-angle corner 7036, so that the flexible adaptive adjustment of the center distance and the height distance between the rail bottom rolling die 14 and the push rod mechanism caused by the shape change of the T-shaped chute 301 of the rail bottom rolling die 14 and different upper die frames 3 in the actual working condition is met; the connection reliability and the applicability and adjustability among different frameworks are guaranteed, the running precision of the servo cylinder 5 is guaranteed to be completely acted on the control precision of the rail bottom mold, and the stability and the consistency of the product quality are improved.

(as shown in fig. 23) in the above embodiment, further: the radially free moving interface 7037 has an outer configuration; the special adjustable wrench can be of an outer hexagonal structure, the outer hexagonal structure is adopted, the adjustable wrench can be disassembled and assembled, and if a round shape is adopted, the problem that pipe tongs are inconvenient to operate exists.

In addition, one end of the radial free movable interface 7037 is rotatably connected, for example, the universal ball head structure is radially rotatably connected with the power output end of the longitudinal connecting rod 7034; the other end of the radial free movable interface 7037 is provided with an external thread rod; the external thread rod is screwed and matched with the internal thread hole 6 (combined with figure 11) formed in the center of the end part of the rail bottom rolling and pressing die 14.

By adopting the structure, in order to facilitate the replacement of the rolling die 14 at the rail bottom in a high-temperature state, the connecting end of the die is designed into the radial free movable connector 7037, the hexagonal structure is combined, the radial free movable connector 7037 can be conveniently screwed and disassembled, the node of each L-shaped corner rod body assembly does not need to be disassembled, only the radial free movable connector 7037 needs to be screwed, the front and back relative positions of the L-shaped corner rod body assembly and the die are inconvenient to maintain, the radial free movable connector 7037 can rotate in situ, and therefore the outer threaded rod at the power output end of the L-shaped corner rod body assembly can be disassembled from the inner threaded hole 6 of the die, and the die can be quickly disassembled or connected by using the die; meanwhile, the fracture of the connecting root of the die can be effectively avoided. The problems of suspended sagging, push-pull bending, corner fracture, dead guide clamping, incapability of adapting to adjustment and the like caused by poor rigidity of the push rod due to the simple bending structure of the original push rod are fully solved.

(fig. 19) in the above embodiment, further: the outer side end of the transverse corner 7035 is provided with a threaded rod I; the transverse corner 7035 is connected with an adjusting and locking threaded sleeve 7038 arranged on the vertical side wall of the embedded plate 7031 through a threaded rod I; the longitudinal connecting rod 7034 is inserted into the longitudinal right-angle corner 7036, and a threaded rod II is arranged at the insertion end of the longitudinal connecting rod 7034; the threaded rod II is screwed and connected with two adjusting and locking threaded sleeves 7038 arranged at the outer ends of the longitudinal right-angle corners 7036 in an adaptive manner; two adjustment locking bushings 7038 are used to lock the longitudinal position of the longitudinal link 7034.

In addition to the above-mentioned locking of the position adjustment of the longitudinal link 7034 by using two adjusting locking thread sleeves 7038, the transverse corner 7035 and the longitudinal right-angle corner 7036 of the present invention can also be locked after the position adjustment of the inner longitudinal link and the transverse link thereof by installing set screws. Namely, each corner structure is characterized in that an axis passes through the corner through hole so as to loosen a set screw during adjustment, thereby realizing the telescopic adjustment of the rod body; and after the adjustment is finished, screwing in the set screw to realize position locking. Two corner connecting devices are specially designed, so that the adaptive adjustment of different molds is realized.

Through the above description, the invention provides a design of a same-body rail bottom mold operating mechanism capable of realizing position quantization, speed control, action online and automatic and emergency manual coexistence of a rail bottom rolling mold.

In the specific application: (as shown in fig. 1), the special-shaped steel rail forging and pressing rail base die operating mechanism is also provided with an automatic composite extrusion die operating system; the step beat of the automatic operation system of the composite extrusion die is interlocked with the step beat signal of the press machine system.

Signal in signal interlock: the position of each module monomer and a pressure actuating mechanism of the press in the composite extrusion die 1, and the operation and position signals of the mechanical structure action are indicated; signal interlocking: the purpose is to make information connection between each module monomer and the press pressure mechanism so as to cooperatively complete the process action. The interlocking means that the interlocking is set logically to avoid the equipment operation interference caused by misoperation and the potential safety operation hazard of artificial or unexpected conditions, namely, the alternative execution logic is set artificially to ensure that a part of execution actions can not be operated by multiple machines synchronously, thereby achieving the determined execution control logic command and effectively avoiding the misoperation.

(in conjunction with fig. 2) the coextrusion die automatic operating system has coextrusion die 1, and the coextrusion die automatic operating system also has coextrusion die controller; the press system has a press 2 and a press controller.

All the controllers are Programmable Logic Controllers (PLC). The automatic operation system of the compound extrusion die and the press system are connected into a whole. Specifically, the method comprises the following steps: can set up the signal sender (the device that sends the telecommunication) in compound extrusion die 1 and each node position of press 2, the signal sender can be servo motor, the cylinder, proximity switch and photoelectric switch, still there is the signal sender of the position signal news point of servo system manual setting, each signal sender of news point and entire system's machinery, electrical correlation, the purpose is the logic control who realizes accurate step, the realization uses compound extrusion die 1 as the core, the synchronism, the harmony that 2 operations of press were supplementary goes on, the forging and pressing operation of continuity.

The press machine 2 establishes a die assembly step formula according to the height position of the compound extrusion die 1, the station operation serial number of the compound extrusion die 1 and the pressure values of different steps of the compound extrusion die 1; a plurality of die assembly steps are integrated to form an automatic compound extrusion process; the automatic compound extrusion die operating system and the press machine system complete multi-step die assembly forging and pressing production of the special-shaped steel rail according to an automatic compound extrusion process.

Specifically, see table 1: die assembly process formula table

In table 1, the following components: such as mold clamping 1-1, refers to a name of a mold combination type, which is composed of a plurality of molds and clamped. And the rest mold closing serial numbers are analogized. The effects and die assembly parameters of different die assembly realization are different, and because the steel rail needs to be heated for two fire times, in order to facilitate management, part of the same die combinations are defined differently according to different fire times so as to avoid confusion.

In table 1: table 4, which has been described later, corresponds to the combinations of the molds at stations 1-1 to 2-7: the rail web die change and the station formula table are provided, and the meaning is that. The serial number of the stations is a serial number mode of process action logic arrangement, 1-X represents station action of first heating of the rail piece, and X represents the number of the stations after first heating; the 2-Y principle is the same. The station shown here is a forging step of the die and can also be qualitatively understood as a forging station, and the different stations are different in the combination of the die, the action position of the die and the die closing parameters of the press.

Table 2: the setting scheme of the blank making point location parameters of the rail bottom rolling die comprises the following steps: (see FIG. 12 for reference.)

See table 2 in conjunction with the description of fig. 2 and 12. The rail bottom rolling die 14 and the rail bottom shaping die 15 share a later-described T-shaped chute 301, the directions of the rail bottom rolling die 14 and the rail bottom shaping die into the T-shaped chute 301 are different, and the rail bottom rolling die 14 is installed in the direction of the raw material of the press machine 2 and enters a working position from back to front; the rail foot shaping die 15 is mounted in front of the press 2, from the front to the rear into the working position.

The parameters of the point of the foot rolling die 14 in table 2 should be understood as (in conjunction with fig. 12): the rail bottom rolling plate is rolled for the first time and moved to the 230 position, is rolled for the second time and moved to the 341 position, is rolled for the third time and moved to the 452 position, and the like. The horizontal movement of the rail bottom rolling die 14 can also be realized by pushing and pulling the manual push rod 7. The rail foot shaping die 15 does not need to adopt a manual push-pull mode due to the heavy weight of the die.

Table 3: the rail bottom rolling die blank-making point location parameters and action formula scheme table are as follows:

in table 3, it should be noted that: the action sequence is 12345 or 54321, the action sequence is related to the principle of metal plastic forming in process development, and the action sequence of any step is actually a blank making step, and the purpose of making blanks is the reasonability.

Table 4: the rail web die changing and station formula table comprises:

in table 4, the effect of the recovery station is that the mold returns to the zero position, i.e. 1 fire operation is finished, so as to avoid omission and facilitate the simplification of the program, so the mold performs the zero position recovery processing.

The invention can realize the automatic continuous production of the technical level of the loose piece type composite extrusion die process, and makes a great breakthrough in a long-term multi-person collaborative application mode; on the basis of meeting the technical experience accumulation of the movable block type compound extrusion die of the company, the production with higher level, higher efficiency and higher reliability can be applied.

(as shown in fig. 2 and 3) in the above embodiment, further: the composite extrusion die 1 consists of a rail head die 11, a rail web pre-forging die 12, a rail web finish-forging die 13, a rail bottom rolling die 14 and a rail bottom shaping die 15.

The rail web pre-forging die 12, the rail web finish-forging die 13, the rail bottom rolling die 14 and the rail bottom shaping die 15 form a die changing system, and the rail web pre-forging die, the rail web finish-forging die, the rail bottom rolling die and the rail bottom shaping die are the main improvement points of the invention. The die changing system is used for realizing the positions and types of dies required by different stations and the switching speed and action of the dies to form a die closing step formula. And multiple mold changing operations of the composite extrusion process are completed by integrating a plurality of mold closing steps and formulas.

It should be noted that: the die changing structure of the rail web pre-forging die 12 and the rail web finish-forging die 13 is a guide theory type die changing device, and refer to Chinese patent with patent number ZL 201420260003.4.

After the invention is applied specifically: the compound extrusion production process based on the loose piece type compound extrusion die can fundamentally stabilize the product quality and improve the production efficiency compared with manual operation; a quantization space is created for material forming and process from the aspects of temperature, time, pressure, speed, connection action, position and integration, the process control of the forging and pressing process is greatly improved, and meanwhile, the labor environment and the operation intensity of personnel on site are greatly improved.

(as shown in fig. 4, 5, 6) in the above embodiment, further: the compound extrusion die 1 has a die platform 101, one end of the die platform 101 is a platform front extension 102, and the other end is a platform rear extension 103.

A blank making station 104 or a shaping station 105 of the composite extrusion die 1 is arranged between the platform front extension section 102 and the platform rear extension section 103; wherein the compound extrusion die 1 is provided with a die changing frame 106; and a rail waist pre-forging die 12 is arranged on one side of the die changing frame 106, and a rail waist final forging die 13 is arranged on the other side of the die changing frame 106.

When in use: the preforging operation is performed as the web preforging die 12 of the die change frame 106 moves to the blanking station 104 shown in fig. 4. When the rail web finish forging die 13 of the die change frame 106 moves to the shaping station 105 shown in fig. 5, the finish forging operation is performed. Whether the pre-forging or the final forging is carried out, the center of the working die of the combined extrusion die 1 is always coincided with the center of the press machine 2.

Wherein, the blank making step operation when the compound extrusion die 1 moves to the blank making station 104 accounts for more than 90 percent of the total step operation of the automatic compound extrusion process; the compound extrusion die 1 only carries out shaping operation on the shaping station 105 once per fire; when the compound extrusion die 1 moves to the blank making station 104 or the shaping station 105; for performing a blanking action or a shaping action, respectively.

In the above embodiment, further: the mold closing process formula comprises mold position parameter information, mold type parameter information, mold switching speed parameter information and mold power parameter information of the composite extrusion mold 1 at the blank making station 101 and the shaping station 102.

The invention can quantify the speed, pressure and action of the equipment, provides convenience for the performance maintenance and daily use management of the equipment in the future, greatly optimizes the use frequency and strength of the rated performance of the equipment, and has great application value in the aspects of reducing the loss of parts of the equipment, the maintenance frequency, the fatigue and the like.

(as shown in fig. 2) in the above embodiment, further: the compound extrusion die 1 comprises an upper die frame 3, a rail bottom shaping die 15 is mounted at the front end of the upper die frame 3 in a suspension mode, and a rail bottom pressing die 14 is mounted at the rear end of the upper die frame 3 in a suspension mode; the rail bottom shaping die 15 is driven by the bidirectional cylinder 4 to realize axial suspension type sliding rail die change operation of the rail bottom shaping die 15 relative to the upper die carrier 3; the same is that: the rail bottom pressing die 14 is driven by the servo cylinder 5 (as shown in fig. 14) to realize the suspension type slide rail die changing operation of the rail bottom pressing die 14 relative to the upper die frame 3 with long axial stroke, short axial stroke, high precision, high frequency, multiple steps and multiple stations.

(as shown in fig. 11) in the above embodiment, further: the rail bottom shaping die 15 and the rail bottom pressing die 14 are respectively connected with the push rod 7 by threads 6 (combined with the figures 15 and 16), and are in threaded connection, so that the assembly and debugging are convenient. In fig. 11, a rail foot mold attachment plate 601 is fixedly attached to a rail foot mold by rail foot mold attachment screws 602.

The push rod 7 is used for manually operating the rail bottom shaping die 15 and the rail bottom to press the axial sliding displacement of the die 14 relative to the upper die frame 3. When the automatic mode is not executable, the manual mode can be switched in time to continue forging.

(see fig. 7, 8, 9) in the above embodiment, further: the rail web pre-forging die 12 and the rail web finish-forging die 13 adjust the actual positions of the dies by adjusting the die mounting screw 9.

Specifically, the method comprises the following steps: the two ends of the rail web pre-forging die 12 and the rail web finish-forging die 13 are respectively provided with a screw 9, the length of the screw 9 can be changed and adjusted, and the rail web pre-forging die 12 and the rail web finish-forging die 13 with different sizes can be changed and adjusted in position by changing the length of the screw 9. The outer end of the screw 9 is connected with a three-hole connecting rod 901 and is blocked and fixed by a retaining ring 902. The three-hole connecting rod 901 and the retainer ring 902 are adopted to realize die connection, so that the fixing is reliable, and the loosening is avoided.

(see fig. 9 and 10) it should be noted that: the rail web pre-forging die 12 and the rail web finish-forging die 13 adjust the actual positions of the dies by adjusting the die mounting screw 9. The screw 9 is in the form of an existing annular retainer ring, the length of a rod body of the screw 9 is divided into four grades, and the screw can be combined to realize stepless adjustment of the die shank and the die spacing of 60mm to 320mm by matching with M24 and M24 and 100 hexagon screws and existing M24 and 120 hexagon mounting screws in the railhead die, and the adjustment flexibility is far superior to that of the original form.

The rail bottom rolling die 14 adjusts the actual position of the die in a parameter adjusting mode; the single-stroke general action point position of the press machine 2 sets up the upward pressure parameters, the downward pressure parameters and the downward pressure parameters of each cycle according to different working steps, different die change, different stations, different die closing serial numbers and different pressures.

In the above embodiment, further: the rail web pre-forging die 12 and the rail web finish-forging die 13 are respectively provided with two universal action points of No. 1 and No. 2. The rail bottom shaping die 15 is provided with two universal action point positions of No. 3 and No. 4; the rail bottom rolling die 14 is provided with six special working point positions of No. 5, No. 6, No. 7, No. 8, No. 9 and No. 10 and four reserved action point positions of No. 11, No. 12, No. 13 and No. 14; no. 15, namely a single-stroke general action point position, is arranged at the upward position of the press machine 2; a 16-number one-stroke general action point position is arranged at the descending position of the press machine 2; the press machine 2 is also provided with a No. 17 single-stroke pressing general action point position.

It should be noted that: regarding the action point locations and the working point locations, the action point locations and the working point locations of different molds are mainly different in the combination form of the work and the mold location during the work. The specific position of the heating furnace is determined according to the actual forging process and the specific die, and different heating furnace bodies and rail parts are required to be finely adjusted when necessary. The specific point location information is shown in table 1: a die assembly process step is carried out; and table 3: and a scheme table of the blank making point location parameters and the action formula of the rail bottom rolling die.

Therefore, the basic process of the die assembly formula mainly acts in a beat manner, and the site setting defines the connection mode and the action signaling node of each formula. The combination of the action rhythm, the locus, the connection mode and the action signaling node realizes the complete logic of the automatic control of the special-shaped steel rail forging mould with the action, the parameter, the position and the coordination as contents among the mould closing operation, the mould station switching and the forging and pressing step forming of a plurality of presses, and realizes the synchronous, coordinated and continuous automatic production with the mould control as the core and the press operation as the auxiliary.

Table 5: signal point location setting information table

It should be noted that: in table 5, the points 16 and 17 are taken as examples: the 16 th and 17 th points actually represent the lower limit position of the press descending from the initial height and the maximum limit pressure during the descending process, so that the size control of the die can be realized. In the table, 1-1 in 16-1-1 corresponds to die assembly 1-1-, and the upward movement, the downward movement and the pressure of the press machine are different in principle for different die assemblies, so that the process is optimized and parameters are configured and flexibly adjusted. In the table, H1 represents the mold clamping height value. F2 represents the pressure value. 15-1-1(H1-1) corresponds to the action name of the die changing 1-1 on the pressing machine in the 15 th point.

The loose piece type compound extrusion die has the advantages of low cost, mature technology, high flexible die assembly characteristic, economical and practical purchasing and daily production and easy realization; the passive form of 'only four stations' theory of an automatic die control process in the field of steel rail forging can be broken through, and automatic continuous production of two stations is realized; the automatic improvement of the process level of the enterprise equipment, reasonable control of the production cost, steady and continuous mature process, multiple purposes and half effort are smoothly ensured.

In summary, in the automatic mode of the rail-sole press rolling die, the servo mechanism sets the site parameters according to the process steps of the rail-sole press rolling die, and connects the site actions with the operation of the press machine to form an automatic control mode taking the die actions as the core and the operation of the press machine as the node.

The steel rail turnout forging device is reasonable in structure, simple, practical, strong in universality, convenient to install and maintain, convenient to design and construct, suitable for production of steel rail turnouts and capable of being widely applied to the field of forging of heel ends of steel rail pieces; the device has wide popularization and application potential in the switch industry and the related multi-platform field of the press machine, and is a device development form which is always desired in the industry for many years; has positive guide demonstration effect and has important significance for improving the application level of industrial equipment and promoting the progress of the turnout processing technology. The device is completely suitable for working condition factors such as high temperature, high oil smoke, high shift yield, high noise, high vibration, high frequency, long distance visual field, long labor intensity duration and the like, and solves the operation problem that different workpieces are difficult to stably and continuously operate on physical strength, continuity, accuracy, continuity and cooperativity in the original manual operation all the time.

Meanwhile, the rail bottom forming quality is ensured, the efficiency, the accuracy, the quantification, the controllability and the cooperativity of the rail bottom forming are improved, the fluctuation of manual operation is thoroughly eliminated, and the quantification and the servo of the operation and the control of the rail bottom die are realized. The method enables a company to continue the development of high level, high efficiency and high reliability in the aspects of technical experience accumulation and application in the process application of the loose piece die in the future, highlights the economic, technical, production and experience advantages of the invention and assists enterprises in sustainable development.

All the embodiments in the present specification are described in a related manner, and the same and similar parts among the embodiments may be referred to each other, and each embodiment focuses on the differences from the other embodiments.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention shall fall within the protection scope of the present invention.

Claims

1. Dysmorphism rail forging and pressing rail foot mould operating device, its characterized in that: comprises an upper die carrier (3); the center of the bottom of the rear end of the upper die frame (3) is matched with a rail bottom rolling die (14) in a sliding manner along the axial direction; a servo cylinder body (5) is arranged at the bottom side of the upper die frame (3) at a distance from the rail bottom rolling die (14) in parallel; the servo cylinder body (5) axially performs telescopic action on the rail bottom rolling die (14); the execution tail end of the servo cylinder body (5) is detachably connected with a power input end of the die connecting part (703); the power output end of the mould connecting part (703) is connected with a rail bottom rolling mould (14); the power input end of the die connecting part (703) is also connected with the execution tail end of a push rod (7); when the execution tail end of the servo cylinder (5) is detached from the power input end of the die connecting part (703), the push rod (7) is used for manually pushing and pulling the operation rail bottom to press the axial linear displacement of the die (14).

2. The special-shaped steel rail forging rail base mold operating mechanism as claimed in claim 1, wherein: a T-shaped sliding groove (301) is formed in the center of the bottom of the rear end of the upper die frame (3); the rail bottom pressing die (14) is in sliding friction fit with the T-shaped sliding groove (301) so as to linearly move along the central axis of the upper die frame (3).

3. The special-shaped steel rail forging rail base mold operating mechanism as claimed in claim 1, wherein: a plurality of periphery reinforcing pieces (5-1) are uniformly distributed on the outer side of the servo cylinder body (5) at equal intervals; the servo cylinder body (5) is installed in a reinforcing mode through a peripheral reinforcing piece (5-1); a protective cover (5-2) is arranged on the outer side of the servo cylinder body (5); the protective cover (5-2) is used for isolating high-temperature steam, thermal radiation, thermal convection, workpiece oxide skin dust debris and foreign matters;

the protective cover (5-2) is provided with an air pipe; the air pipe is used for air cooling of the servo cylinder body (5) in the protective cover (5-2).

4. The special-shaped steel rail forging rail base mold operating mechanism as claimed in claim 1 or 2, wherein: a transition plate (10) is detachably mounted at a hoisting hole position beside the upper die frame (3) in a fastening mode, the transition plate (10) bears and mounts a servo cylinder body (5) and an actuating mechanism related to a push rod (7), a lifting lug (16) is arranged on the transition plate (10), and the lifting lug (16) is used for hoisting the transition plate (10) and all bearing parts on the transition plate after being integrally dismounted; the transition plate (10) is fixedly provided with a plurality of axial guide sleeves (8), and the push rod (7) is in coaxial sliding friction fit with the plurality of axial guide sleeves (8); the push rod (7) is provided with scale scales (7-1), the scale scales (7-1) are provided with equivalent consubstantial pointers (7-2), and the equivalent consubstantial pointers (7-2) are fixedly installed on the outer side of the transition plate (10); the manual operation end of the push rod (7) is provided with a quick-release flange structure (7-3), and the push rod (7) is detachably connected with the extension section push rod (7-4) through the quick-release flange structure (7-3).

5. The special-shaped steel rail forging rail base mold operating mechanism as claimed in claim 4, wherein: the push rod (7) is a double-rod balance structure which is parallel at an upper interval and a lower interval; the outer side end of the push rod (7) of the double-rod balance structure shares one push handle (702).

6. The special-shaped steel rail forging rail base mold operating mechanism as claimed in claim 1, wherein: the power input end of the die connecting part (703) is provided with a vertically arranged embedded plate (7031), and the middle part of the vertical side wall at the inner side of the embedded plate (7031) is provided with a U-shaped groove (7032); the execution tail end of the servo cylinder body (5) is provided with a T-shaped embedded joint (5-3) which is horizontally arranged; the horizontal rod body of the T-shaped embedded joint (5-3) is inserted into the U-shaped groove (7032) in an adaptive mode, the vertical portion of the tail end of the T-shaped embedded joint (5-3) is clamped with the U-shaped groove (7032), and therefore the T-shaped embedded joint (5-3) is used for achieving detachable connection of the execution tail end of the servo cylinder body (5) and the embedded plate (7031).

7. The special-shaped steel rail forging rail base mold operating mechanism as claimed in claim 6, wherein: one side of the embedded plate (7031) is fixedly connected with a power output end of the push rod (7); the other side of the embedded plate (7031) is connected with a rail bottom rolling die (14) through an L-shaped corner rod body component.

8. The special-shaped steel rail forging rail base mold operating mechanism as claimed in claim 7, wherein: the L-shaped passing corner rod body assembly consists of a transverse connecting rod (7033), a longitudinal connecting rod (7034), a transverse corner (7035), a longitudinal right-angle corner (7036) and a radial free movable joint (7037); wherein the transverse corner (7035) is connected with the embedded plate (7031); the power input end of the transverse connecting rod (7033) is inserted into and adjusted to be inserted into a transverse through hole of the transverse corner (7035) so as to transversely adjust and lock the distance between the center line of the rail bottom rolling die (14) and the stroke center line of the servo cylinder body (5); the power output end of the transverse connecting rod (7033) is inserted into one end of a longitudinal right-angle corner (7036), and the power input end of the longitudinal connecting rod (7034) is inserted into a longitudinal through hole at the other end of the longitudinal right-angle corner (7036); the power output end of the longitudinal connecting rod (7034) is in threaded connection with the outer end of the axial center line of the rail bottom rolling die (14) through a radial free movable joint (7037); the longitudinal right-angle corner (7036) and the longitudinal connecting rod (7034) are used for adjusting and locking the longitudinal mold position of the rail bottom rolling mold (14).

9. The special-shaped steel rail forging rail base mold operating mechanism as claimed in claim 8, wherein: the radially freely movable interface (7037) has an outer configuration; one end of the radial free movable interface (7037) is rotatably connected with the power output end of the longitudinal connecting rod (7034); the other end of the radial free movable interface (7037) is provided with an external thread rod; the external thread pole closes adaptation connection rail end and rolls and press interior screw hole (6) that mould (14) tip center was made soon.

10. The special-shaped steel rail forging rail base mold operating mechanism as claimed in claim 8, wherein: the outer side end of the transverse corner (7035) is provided with a threaded rod I; the transverse corner (7035) is connected with an adjusting and locking threaded sleeve (7038) arranged on the vertical side wall of the embedded plate (7031) through a threaded rod I; the longitudinal connecting rod (7034) is inserted into the longitudinal right-angle corner (7036), and a threaded rod II is arranged at the insertion end of the longitudinal connecting rod (7034); the threaded rod II is screwed and connected with two adjusting and locking threaded sleeves (7038) arranged at the outer ends of the longitudinal right-angle corners (7036) in an adaptive manner; two adjusting and locking sliding sleeves (7038) are used for locking the longitudinal position of the longitudinal connecting rod (7034).