CN111318634B - Rail flash removal device - Google Patents
Rail flash removal device Download PDFInfo
- Publication number
- CN111318634B CN111318634B CN202010329111.2A CN202010329111A CN111318634B CN 111318634 B CN111318634 B CN 111318634B CN 202010329111 A CN202010329111 A CN 202010329111A CN 111318634 B CN111318634 B CN 111318634B
- Authority
- CN
- China
- Prior art keywords
- upper die
- rail
- die
- plate
- trimming
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000009966 trimming Methods 0.000 claims abstract description 96
- 238000005520 cutting process Methods 0.000 claims description 145
- 238000000034 method Methods 0.000 abstract description 26
- 230000008569 process Effects 0.000 abstract description 23
- 239000000463 material Substances 0.000 abstract description 3
- 229910000831 Steel Inorganic materials 0.000 description 124
- 239000010959 steel Substances 0.000 description 124
- 238000005242 forging Methods 0.000 description 16
- 230000000903 blocking effect Effects 0.000 description 11
- 238000010008 shearing Methods 0.000 description 11
- 230000000694 effects Effects 0.000 description 8
- 238000005299 abrasion Methods 0.000 description 5
- 238000013461 design Methods 0.000 description 4
- 239000004519 grease Substances 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 238000003825 pressing Methods 0.000 description 4
- 230000001050 lubricating effect Effects 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 238000012937 correction Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
- B21J5/02—Die forging; Trimming by making use of special dies ; Punching during forging
- B21J5/027—Trimming
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J13/00—Details of machines for forging, pressing, or hammering
- B21J13/02—Dies or mountings therefor
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Shearing Machines (AREA)
Abstract
本发明提供了一种钢轨飞边切除装置，包括：上模板；上模固定杆，连接于上模板；上模，套设在上模固定杆上，上模背离于上模板的端面形状适配于钢轨的腹板的形状；切边模，连接于上模板，位于上模两侧；下模组件，与上模相对设置，下模组件朝向上模的端面形状适配于钢轨的腹板的形状，上模位于下模组件与上模板之间。本发明提供的钢轨飞边切除装置，通过上模与下模组件的设置在切边模切除飞边的过程中对钢轨起到夹持固定的作用，能够避免钢轨产生形变，同时在完成切飞边后，仅需控制切边模与上模远离于下模组件即可完成下料，钢轨下料过程中与钢轨飞边切除装置不产生摩擦，避免了卡模现象的发生，进一步避免了钢轨产生形变，保障了钢轨质量。
The present invention provides a rail flash removal device, comprising: an upper mold plate; an upper mold fixing rod connected to the upper mold plate; an upper mold sleeved on the upper mold fixing rod, the end face shape of the upper mold facing away from the upper mold plate is adapted to the shape of the web of the rail; a trimming mold connected to the upper mold plate and located on both sides of the upper mold plate; a lower mold assembly arranged opposite to the upper mold plate, the end face shape of the lower mold assembly facing the upper mold is adapted to the shape of the web of the rail, and the upper mold is located between the lower mold assembly and the upper mold plate. The rail flash removal device provided by the present invention can clamp and fix the rail during the flash removal process by the trimming mold assembly, thereby avoiding deformation of the rail. At the same time, after the flash removal is completed, the material can be unloaded only by controlling the trimming mold and the upper mold to be away from the lower mold assembly. During the unloading process, no friction is generated between the rail and the rail flash removal device, thereby avoiding the occurrence of die jamming, further avoiding deformation of the rail, and ensuring the quality of the rail.
Description
Technical Field
The invention relates to the technical field of rail transit, in particular to a steel rail flash cutting device.
Background
The steel rail in the prior art is prepared by a hot forging forming process, and in order to remove redundant metal in the hot forging forming process, necessary process resistance is applied to ensure that the metal fills the cavity, so that forging flash can be formed at the die parting surface of the heel end of the steel rail.
The flange at the heel end of the steel rail has great influence on the quality of the steel rail, and the steel rail can be scrapped if the subsequent process is improperly processed. In the prior art, a female die is usually designed, a forging piece is placed on a hole of the female die, and the flash of the forging piece is sheared and removed by a cutting edge of the female die under the pushing and pressing of the male die. The problem of forging deformation after trimming can exist through concave-convex die cutting to remove flash, and a correction or coining procedure is added after trimming the forging with high precision requirement, so that unit equipment and corresponding dies are required to be added. The existing steel rail heel hot forging forming process equipment layout can not realize correction or coining procedures. In addition, after trimming of the forging piece is completed in the prior art, the forging piece is pushed out of the die hole by the male die and is taken out from the bottom of the die. Because the steel rail belongs to a long and heavy slender rod piece, after the flange is forged at the heel end of the steel rail and the edge is cut, the steel rail needs to be pushed out of the cutting edge cutting area again, the steel rail is easy to have a clamping phenomenon, and even the heel end of the steel rail is seriously bent. Because the metal at the flash of the die cavity of the steel rail heel hot forging forming die flows violently, the vicinity of the parting surface of the die cavity is easy to wear, the shearing surface of the flash is increased along with the increase of the using times of the die, the shearing force of the edge is increased, and the problems of steel rail edge cutting deformation and die clamping are aggravated.
Disclosure of Invention
The present invention aims to solve at least one of the technical problems existing in the prior art.
The invention provides a steel rail flash cutting device which comprises an upper die plate, an upper die fixing rod, an upper die, a trimming die, a lower die assembly and an upper die assembly, wherein the upper die fixing rod is connected to the upper die plate, the upper die is sleeved on the upper die fixing rod, the end face shape of the upper die, which is deviated from the upper die plate, is matched with the shape of a web plate of a steel rail, the trimming die is connected to the upper die plate and is positioned on two sides of the upper die, the lower die assembly is arranged opposite to the upper die, the end face shape of the lower die assembly, which is oriented to the upper die, is matched with the shape of the web plate of the steel rail, and the upper die is positioned between the lower die assembly and the upper die plate.
According to the steel rail flash cutting device, in the working process, a steel rail needing flash cutting is arranged on the lower die assembly, the lower die assembly supports a web plate on one side of the steel rail, the upper die moves to the lower die assembly to be abutted against the web plate on the other side of the steel rail, and the trimming die moves towards the lower die assembly to cut the flash of the rail head and the rail bottom of the steel rail. After the flash cutting is completed, the upper die and the trimming die move towards the direction far away from the lower die assembly, and then the steel rail can be removed.
According to the steel rail flash cutting device, the upper die and the lower die assembly are arranged in the process of cutting off the flash by the trimming die to clamp and fix the steel rail, so that the deformation of the steel rail can be avoided, meanwhile, after the trimming is finished, the trimming die and the upper die are only controlled to be far away from the lower die assembly, the blanking can be finished, friction is not generated between the trimming die and the steel rail flash cutting device in the steel rail blanking process, the phenomenon of clamping the die is avoided, the deformation of the steel rail is further avoided, and the quality of the steel rail is guaranteed.
In addition, the steel rail flash cutting device in the technical scheme provided by the invention can also have the following additional technical characteristics:
In the technical scheme, the upper die fixing rod further comprises a connecting part connected with the upper die plate, a guide part connected with the connecting part, a limiting step connected with the guide part, wherein the upper die is sleeved on the guide part and abutted against the limiting step.
In this technical scheme, further provided the structure of last mould dead lever, last mould dead lever has included connecting portion, guide part and spacing step. The connecting portion plays a role of being connected to the upper die fixing rod and the upper die plate. The upper die is sleeved on the guide part and can slide relative to the guide part, and the limiting step plays a role in limiting the upper die, so that the upper die is prevented from falling off through the upper die fixing rod. Through the setting of last mould dead lever, go up the mould and can slide for last mould dead lever, in the course of the work, go up the mould and can preferential butt on the web of rail, then the trimming die contacts with the overlap of rail again, has realized last mould and lower die assembly and has accomplished the centre gripping to the rail after, carries out the excision overlap again, has avoided the rail to produce deformation, has ensured rail quality.
In any one of the above technical schemes, the steel rail flash cutting device further comprises a spring, wherein the upper die and/or the upper die plate is provided with a spring mounting hole, and the spring is arranged in the spring mounting hole and is positioned between the upper die plate and the upper die plate.
In this technical scheme, further set up spring and spring mounting hole, the spring setting is in the spring mounting hole, and the free end butt in the cope match-plate pattern of spring, another free end butt in the cope match-plate pattern.
In the process of flash cutting, after the upper die abuts against the web plate of the steel rail, the upper die plate drives the trimming die to compress the spring in the process of moving the lower die set, so that the clamping force applied to the steel rail by the upper die is gradually increased, on one hand, the steel rail can be ensured to be firmly clamped, deformation of the steel rail is avoided, on the other hand, pressure is gradually applied, the steel rail deformation caused by direct and forced pressure application can be avoided, and the quality of the steel rail is further ensured.
After the trimming is cut off, the upper die and the trimming die move towards the direction away from the lower die assembly, and at the moment, the spring is reset to provide auxiliary thrust, so that the heel end of the steel rail is easily and stably pushed out of the cutting edge area of the trimming die, and the die clamping phenomenon is avoided.
In any of the above technical schemes, the lower die assembly further comprises a lower die plate, a lower die connected with the lower die plate, and positioning keys arranged in the positioning grooves.
In the technical scheme, the lower die assembly is further limited, the lower die assembly comprises a lower die plate and a lower die, the lower die and the lower die plate are positioned through a positioning groove and a positioning key, the lower die and the upper die are ensured to be arranged oppositely, and a steel rail can be clamped through the lower die and the upper die. Further, the lower die can be fixed on the lower die plate through screws.
Specifically, the width of the lower die is the same as that of the upper die, so that the upper die and the lower die are arranged oppositely, and rail deformation caused by the wrong die of the upper die and the lower die is avoided.
In any one of the above technical schemes, the steel rail flash cutting device further comprises a guide post, wherein one end of the guide post is connected with the upper die plate, the other end of the guide post is connected with the lower die plate, and the fasteners are divided into two groups, one group penetrates through the guide post to be connected with the upper die plate, and the other group penetrates through the guide post to be connected with the lower die plate.
In the technical scheme, the guide post and the fastener are further arranged, the upper die plate and the lower die plate can be connected through the arrangement of the guide post and the fastener, on one hand, the steel rail flash cutting device can be made into a whole in a modularized mode, so that the steel rail flash cutting device is convenient to carry and transport, on the other hand, the guide post and the fastener also play a role in positioning the upper die plate and the lower die assembly, the upper die connected with the upper die plate and the lower die connected with the lower die plate are prevented from generating wrong dies, and steel rail deformation caused by wrong dies is prevented.
In the technical scheme, the steel rail flash cutting device can be arranged on the existing equipment through the arrangement of the guide post and the fastening piece to provide driving force for the steel rail flash cutting device so as to cut off the flash of the steel rail. For example, the steel rail flash cutting device is arranged on the press, the sliding block of the press is connected with the upper die plate, the lower die plate is fixed on the workbench of the press, then the guide posts and the fastening pieces are removed, the unlocking of the upper die plate and the lower die plate can be realized, meanwhile, the arrangement positions of the upper die and the lower die can be ensured due to the positioning action of the guide posts, and the sliding block of the press is directly driven to move towards or away from the workbench, so that the steel rail flash can be cut.
In any of the above technical solutions, the guide post further comprises a post body, positioning surfaces arranged at two ends of the post body, guide surfaces arranged at one ends of the positioning surfaces, which are away from the post body, guide post grooves arranged between the positioning surfaces and the guide surfaces, the fastener comprises a thread section screwed and fixed on the upper template or the lower template, and a straight rod section connected with the thread section and adapted to be arranged in the guide post grooves.
In this technical scheme, further provided the structure of guide pillar and fastener, the result includes cylinder, locating surface and guide surface, is convenient for will lead to pegging graft in cope match-plate pattern or lower bolster through the setting of guide surface, plays location and spacing effect through the setting of locating surface. The fastener comprises a thread section and a straight rod section, when the fastener fixes the guide post, the straight rod section of the fastener is arranged in the groove of the guide post to play a role in positioning the guide post, and meanwhile, the thread section of the fastener is connected with the upper template or the lower template to realize the fixation between the guide post and the upper template and the lower template, so that the positioning effect of the guide post is guaranteed, and the positions of the upper template and the lower template are limited.
In any of the above technical schemes, the trimming die further comprises a rail head trimming die connected with the upper die plate and arranged on one side of the upper die, a rail bottom trimming die connected with the upper die plate and arranged on the other side of the upper die, and a cutting edge connected with the rail head trimming die and the rail bottom trimming die.
In this technical scheme, further provided the constitution of cut off die, cut off die has included rail head cut off die and rail bottom cut off die, and rail head cut off die is used for cutting off the overlap of the rail head end of rail, and rail bottom cut off die is used for cutting off the overlap of the rail bottom of rail, has ensured the side cut effect.
In any of the above technical solutions, further, the cutting edge includes a plurality of block cutting edges, and the block cutting edges are connected to the rail head trimming die and the rail bottom trimming die through screws.
According to the technical scheme, the cutting edge comprises a plurality of blocking cutting edges, the blocking cutting edges can be manufactured respectively through the arrangement of the blocking cutting edges, then the cutting edges are assembled and installed, the production cost of the cutting edges is reduced, meanwhile, the weight of each blocking cutting edge is lower, the installation and the fixation are convenient, the blocking cutting edges with serious abrasion can be replaced based on actual conditions along with abrasion of the cutting edges in the using process, the whole cutting edges are not required to be replaced, the maintenance cost is further reduced, on the other hand, gaskets can be arranged between adjacent blocking cutting edges or between the blocking cutting edges and the rail head trimming die and the rail bottom trimming die in the trimming process, the arrangement positions of the cutting edges can be adjusted, the cutting edges can be accurately cut off the burrs of the steel rail, and the quality of the steel rail is ensured.
Specifically, a plurality of threaded holes can be formed in one end, facing the lower die assembly, of the rail head trimming die and the rail bottom trimming die, and the blocking cutting edge can be fixed through selecting different threaded holes, so that the effect of adjusting the position can be achieved.
In any one of the technical schemes, the steel rail flash cutting device further comprises a press machine, wherein the press machine comprises a workbench and a sliding block, connecting parts are arranged on the upper die plate and the lower die assembly, the upper die plate is connected with the sliding block through the connecting parts, and the lower die assembly is connected with the workbench through the connecting parts.
In the technical scheme, the steel rail flash cutting device further comprises a press machine which is used as a power source of the steel rail flash cutting device, the steel rail flash cutting device is arranged on the press machine when in use, a slide block of the press machine is connected with the upper die plate, the lower die plate is fixed on a workbench of the press machine, and the slide block of the press machine is driven to move towards or away from the workbench to cut off the steel rail flash.
In any one of the above technical schemes, the steel rail flash cutting device further comprises an oil groove which is arranged on the upper die fixing rod and/or the upper die and is positioned between the upper die fixing rod and the upper die.
In this technical scheme, further including the oil groove, the oil groove sets up on last mould dead lever and/or last mould, is located the working face of last mould and last mould dead lever, can paint the lubricating grease in the oil groove, guarantees that last mould is gliding smooth steady on last mould dead lever.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, or may be learned by practice of the invention.
Drawings
The foregoing and/or additional aspects and advantages of the invention will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:
FIG. 1 shows a schematic view of a rail structure with flanges;
Fig. 2 shows a schematic structural view of a rail burr removal device provided according to an embodiment of the present invention;
FIG. 3 illustrates a side view of a rail flash removal device provided in accordance with one embodiment of the present invention;
FIG. 4 illustrates a top view of a rail flash removal device provided in accordance with one embodiment of the present invention;
FIG. 5 shows a schematic structural view of an upper die fixing rod according to an embodiment of the present invention;
FIG. 6 shows a schematic structural view of a guide post provided according to one embodiment of the present invention;
FIG. 7 illustrates a schematic structural view of a fastener provided in accordance with one embodiment of the present invention;
fig. 8 is a schematic structural view of an upper die according to an embodiment of the present invention;
FIG. 9 shows a schematic structural view of a cutting edge provided according to one embodiment of the present invention;
FIG. 10 illustrates a cross-sectional view of a cutting edge provided in accordance with one embodiment of the present invention;
FIG. 11 is a schematic view showing a block-cutting edge mounting state according to an embodiment of the present invention;
Fig. 12 shows a schematic structure of an oil sump provided according to an embodiment of the present invention.
The correspondence between the reference numerals and the component names in fig. 1 to 12 is:
2 upper die plate, 4 upper die fixing rod, 6 upper die, 8 trimming die, 10 lower die assembly, 12 spring, 14 guide post, 16 fastener, 18 oil groove, 20 flash, 402 connecting part, 404 guide part, 406 limit step, 802 rail head trimming die, 804 rail bottom trimming die, 806 cutting edge, 1002 lower die plate, 1004 lower die, 1006 positioning key, 1402 cylinder, 1404 positioning surface, 1406 guide surface, 1408 guide post groove, 1602 thread section, 1604 straight bar section, 8062 first block cutting edge, 8064 second block cutting edge, 8066 third block cutting edge.
Detailed Description
So that the manner in which the above recited objects, features and advantages of the present application can be understood in detail, a more particular description of the application, briefly summarized below, may be had by reference to the appended drawings. It should be noted that, without conflict, the embodiments of the present application and features in the embodiments may be combined with each other.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways than those described herein, and therefore the scope of the present invention is not limited to the specific embodiments disclosed below.
A rail burr removal device according to some embodiments of the invention is described below with reference to fig. 1 to 12.
Example 1
As shown in fig. 2 to 4, an embodiment of the present invention provides a rail flash cutting device comprising an upper die plate 2, an upper die fixing rod 4, an upper die 6, a trimming die 8 and a lower die assembly 10.
The upper die fixing rod 4 is connected to the upper die plate 2, the upper die 6 is sleeved on the upper die fixing rod 4, the end face shape of the upper die 6, which is far away from the upper die plate 2, is adapted to the shape of the web of the steel rail, the trimming die 8 is connected to the upper die plate 2 and is positioned on two sides of the upper die 6, the lower die assembly 10 is arranged opposite to the upper die 6, the end face shape of the lower die assembly 10, which is towards the upper die 6, is adapted to the shape of the web of the steel rail, and the upper die 6 is positioned between the lower die assembly 10 and the upper die plate 2.
As shown in fig. 1 and 2, in the working process, the steel rail to be subjected to trimming 20 is arranged on the lower die assembly 10, the web plate on one side of the steel rail is supported by the lower die assembly 10, the upper die 6 moves to the lower die assembly 10 to be abutted against the web plate on the other side of the steel rail, and the trimming die 8 moves to the lower die assembly 10 to trim the trimming 20 on the rail head and the rail bottom of the steel rail. After the flash 20 is cut, the upper die 6 and the trimming die 8 move away from the lower die assembly 10, and the rail can be removed.
According to the steel rail flash cutting device, the upper die 6 and the lower die assembly 10 are arranged in the process of cutting the flash 20 by the trimming die 8 to clamp and fix the steel rail, so that the deformation of the steel rail can be avoided, meanwhile, after the flash 20 is cut, the blanking can be finished only by controlling the trimming die 8 and the upper die 6 to be far away from the lower die assembly 10, friction is not generated between the trimming die 8 and the steel rail flash cutting device in the steel rail blanking process, the phenomenon of clamping the die is avoided, the deformation of the steel rail is further avoided, and the quality of the steel rail is ensured.
Example two
As shown in fig. 2 to 4, an embodiment of the present invention provides a rail flash cutting device comprising an upper die plate 2, an upper die fixing rod 4, an upper die 6, a trimming die 8 and a lower die assembly 10.
The upper die fixing rod 4 is connected to the upper die plate 2, the upper die 6 is sleeved on the upper die fixing rod 4, the end face shape of the upper die 6, which is far away from the upper die plate 2, is adapted to the shape of the web of the steel rail, the trimming die 8 is connected to the upper die plate 2 and is positioned on two sides of the upper die 6, the lower die assembly 10 is arranged opposite to the upper die 6, the end face shape of the lower die assembly 10, which is towards the upper die 6, is adapted to the shape of the web of the steel rail, and the upper die 6 is positioned between the lower die assembly 10 and the upper die plate 2.
As shown in fig. 5, the upper die fixing rod 4 further comprises a connecting part 402 connected to the upper die plate 2, a guiding part 404 connected to the connecting part 402, and a limiting step 406 connected to the guiding part 404, wherein the upper die 6 is sleeved on the guiding part 404 and is abutted against the limiting step 406.
In this embodiment, there is further provided a structure of the upper die fixing lever 4, and the upper die fixing lever 4 includes a connecting portion 402, a guide portion 404, and a limiting step 406. The connection portion 402 functions to connect to the fixed upper die fixing rod 4 and the upper die plate 2. The upper die 6 is sleeved on the guide part 404, and can slide relative to the guide part 404, and the limiting step 406 plays a role in limiting the upper die 6, so that the upper die 6 is prevented from falling off through the upper die fixing rod 4. Through the setting of last mould dead lever 4, go up mould 6 and can slide for last mould dead lever 4, in the course of the work, go up mould 6 and can be preferential butt on the web of rail, then cut off mould 8 and overlap 20 of rail contact again, realized last mould 6 and lower die assembly 10 accomplish the centre gripping to the rail after, cut off overlap 20 again, avoided the rail to produce deformation, ensured rail quality.
Example III
As shown in fig. 2 to 4, an embodiment of the present invention provides a rail flash cutting device comprising an upper die plate 2, an upper die fixing rod 4, an upper die 6, a trimming die 8 and a lower die assembly 10.
The upper die fixing rod 4 is connected to the upper die plate 2, the upper die 6 is sleeved on the upper die fixing rod 4, as shown in fig. 8, the end face shape of the upper die 6, which is away from the upper die plate 2, is adapted to the shape of the web of the steel rail, the trimming die 8 is connected to the upper die plate 2 and is positioned on two sides of the upper die 6, the lower die assembly 10 is arranged opposite to the upper die 6, the end face shape of the lower die assembly 10, which is towards the upper die 6, is adapted to the shape of the web of the steel rail, and the upper die 6 is positioned between the lower die assembly 10 and the upper die plate 2.
As shown in fig. 5, the upper die fixing rod 4 further comprises a connecting part 402 connected to the upper die plate 2, a guiding part 404 connected to the connecting part 402, and a limiting step 406 connected to the guiding part 404, wherein the upper die 6 is sleeved on the guiding part 404 and is abutted against the limiting step 406.
As shown in fig. 3, the steel rail flash cutting device further comprises a spring 12, wherein a spring mounting hole is formed in the upper die 6 and/or the upper die plate 2, and the spring 12 is arranged in the spring mounting hole and is positioned between the upper die plate 2 and the upper die 6.
In this embodiment, a spring 12 and a spring mounting hole are further provided, the spring 12 is provided in the spring mounting hole, one free end of the spring 12 abuts against the upper die plate 2, and the other free end abuts against the upper die 6.
In the cutting process of the flash 20, after the upper die 6 is abutted against the web of the steel rail, the upper die plate 2 drives the trimming die 8 to compress the spring 12 in the moving process of the lower die assembly 10, so that the clamping force applied to the steel rail by the upper die 6 is gradually increased, on one hand, the stable clamping of the steel rail can be ensured, the deformation of the steel rail is avoided, on the other hand, the pressure is gradually applied, the deformation of the steel rail caused by the direct forced pressure application can be avoided, and the quality of the steel rail is further ensured.
After the flash 20 is cut off, the upper die 6 and the trimming die 8 move away from the lower die assembly 10, and at the moment, the spring 12 is reset to provide auxiliary thrust, so that the heel end of the steel rail can be easily and stably pushed out of the cutting edge 806 area of the trimming die 8, and the die clamping phenomenon is avoided.
Example IV
Further, as shown in fig. 2 and 3, the lower die assembly 10 includes a lower die plate 1002, a lower die 1004 connected to the lower die plate 1002, and positioning keys 1006 disposed in the positioning grooves on the lower die plate 1002 and the lower die 1004.
In this embodiment, the composition of the lower die assembly 10 is further defined, the lower die assembly 10 includes a lower die plate 1002 and a lower die 1004, the lower die 1004 and the lower die plate 1002 are positioned by a positioning groove and a positioning key 1006, so that the lower die 1004 is disposed opposite to the upper die 6, and the steel rail can be clamped by the lower die 1004 and the upper die 6. Further, the lower die 1004 may be fixed to the lower die plate 1002 by screws.
Specifically, the width of the lower die 1004 is the same as that of the upper die 6, so that the upper die 6 and the lower die 1004 are arranged opposite to each other, and rail deformation caused by the wrong die of the upper die 6 and the lower die 1004 is avoided.
As shown in fig. 2 to 4, the rail flash cutting device further comprises a guide post 14, wherein one end of the guide post 14 is connected to the upper die plate 2, and the other end of the guide post 14 is connected to the lower die plate 1002, and a plurality of fasteners 16 are divided into two groups, one group is connected to the upper die plate 2 through the guide post 14, and the other group is connected to the lower die plate 1002 through the guide post 14.
As shown in fig. 4, in this embodiment, a guide post 14 and a fastener 16 are further provided, and the upper die plate 2 and the lower die plate 1002 can be connected by the arrangement of the guide post 14 and the fastener 16, so that on one hand, the rail flash cutting device can be modularized integrally, and is convenient to carry and transport, and on the other hand, the same as the fastener 16, the positioning effect of the upper die plate 2 and the lower die assembly 10 is achieved, and the occurrence of die misalignment between the upper die 6 connected to the upper die plate 2 and the lower die 1004 connected to the lower die plate 1002 is avoided, and the rail deformation caused by die misalignment is avoided.
In this embodiment, by providing the guide post 14 and fastener 16, the rail flash removal device can be provided on existing equipment to provide the driving force for the rail flash removal device to complete removal of the flash 20 from the rail. For example, the steel rail flash cutting device is arranged on a press, a slide block of the press is connected with the upper die plate 2, the lower die plate 1002 is fixed on a workbench of the press, then the guide post 14 and the fastener 16 are removed, unlocking of the upper die plate 2 and the lower die plate 1002 can be achieved, meanwhile, the arrangement positions of the upper die 6 and the lower die 1004 can be ensured due to the positioning effect of the guide post 14, and the cutting of the steel rail flash 20 can be achieved by directly driving the slide block of the press to move towards or away from the workbench.
As shown in fig. 6 and 7, further, the guide post 14 includes a post 1402, positioning surfaces 1404 disposed at both ends of the post 1402, guide surfaces 1406 disposed at an end of the positioning surfaces 1404 facing away from the post 1402, guide post grooves 1408 disposed between the positioning surfaces 1404 and the guide surfaces 1406, the fastener 16 including a threaded section 1602, the threaded section 1602 being screwed onto the upper or lower templates 2, 1002, and a straight rod section 1604 connected to the threaded section 1602 and adapted to be disposed within the guide post grooves 1408.
In this embodiment, there is further provided a structure of the guide post 14 and the fastener 16, resulting in the inclusion of the post 1402, the locating surface 1404 and the guide surface 1406, the provision of the guide surface 1406 facilitates the insertion of the guide post into the upper die plate 2 or the lower die plate 1002, and the locating and limiting functions are provided by the locating surface 1404. The fastener 16 comprises a thread section 1602 and a straight rod section 1604, when the fastener 16 fixes the guide post 14, the straight rod section 1604 of the fastener 16 is arranged in a groove of the guide post 14 to play a role in positioning the guide post 14, and meanwhile, the thread section 1602 of the fastener 16 is connected with the upper template 2 or the lower template 1002 to realize the fixation between the guide post 14 and the upper template 2 and the lower template 1002, so that the positioning effect of the guide post 14 is ensured, and the positions of the upper template 2 and the lower template 1002 are limited.
Example five
As shown in fig. 2 and 8 to 11, the trimming die 8 further includes a rail head trimming die 802 connected to the upper die plate 2 and disposed on one side of the upper die 6, a rail bottom trimming die 804 connected to the upper die plate 2 and disposed on the other side of the upper die 6, and a cutting edge 806 connected to the rail head trimming die 802 and the rail bottom trimming die 804.
In this embodiment, there is further provided a composition of the trimming die 8, the trimming die 8 comprising a head trimming die 802 and a foot trimming die 804, the head trimming die 802 being configured to cut the flange 20 of the head end of the rail, the foot trimming die 804 being configured to cut the flange 20 of the foot end of the rail, the trimming effect being ensured.
As shown in fig. 9-11, further, the cutting edge 806 includes a plurality of segmented cutting edges that are attached to the rail head trimming die 802 and the rail bottom trimming die 804 by screws.
In this embodiment, the composition of the cutting edge 806 is further provided, the cutting edge 806 includes a plurality of block cutting edges, and through the arrangement of the plurality of block cutting edges, on one hand, the block cutting edges can be manufactured respectively, then the block cutting edges are assembled and installed, so that the production cost of the cutting edge 806 is reduced, meanwhile, the weight of each block cutting edge is lower, the installation and the fixation are facilitated, on the other hand, the block cutting edges with serious abrasion can be replaced based on actual conditions along with the abrasion of the cutting edge 806 in the use process, the whole cutting edge 806 is not required to be replaced, so that the maintenance cost is further reduced, on the other hand, gaskets can be arranged between adjacent block cutting edges or block cutting edges and the rail head trimming die 802 and the rail bottom trimming die 804 in the process of cutting the flash 20, so that the arrangement position of the cutting edge 806 can be adjusted, the flash 20 of a steel rail can be accurately cut off by the cutting edge 806, and the quality of the steel rail can be ensured.
Example six
On the basis of any one of the first to third embodiments, the rail flash cutting device further comprises a press machine, wherein the press machine comprises a workbench and a sliding block, a connecting part 402 is arranged on the upper die plate 2 and the lower die assembly 10, the upper die plate 2 is connected with the sliding block through the connecting part 402, and the lower die assembly 10 is connected with the workbench through the connecting part 402.
In this embodiment, the steel rail flash cutting device is further provided with a press machine as a power source of the steel rail flash cutting device, when in use, the steel rail flash cutting device is arranged on the press machine, a slide block of the press machine is connected with the upper die plate 2, the lower die plate 1002 is fixed on a workbench of the press machine, and the slide block of the press machine is driven to move towards or away from the workbench to cut the steel rail flash 20.
Example seven
Further, as shown in fig. 12, the rail flash cutting device further comprises an oil groove 18 formed on the upper die fixing rod 4 and/or the upper die 6 and located between the upper die fixing rod 4 and the upper die 6.
In this embodiment, the upper die fixing rod 4 and/or the upper die 6 are/is further provided with an oil groove 18, the oil groove 18 is arranged in the working surface of the upper die 6 and the upper die fixing rod 4, and grease can be smeared in the oil groove 18 to ensure that the upper die 6 slides smoothly and stably on the upper die fixing rod 4.
DETAILED DESCRIPTION OF EMBODIMENT (S) OF INVENTION
As shown in fig. 1 to 12, one embodiment of the present embodiment provides a rail flash cutting device, which comprises an upper die plate 2, a lower die plate 1002, an upper die 6, a lower die 1004, a rail bottom trimming die 804, a rail head trimming die 802, an upper die fixing rod 4, a guide post 14, a fastener 16, a spring 12, a first block cutting edge 8062, a second block cutting edge 8064, a third block cutting edge 8066, and a rail head cutting edge.
The device of this embodiment is assembled as follows:
The upper die 6 is fixed on the upper die plate 2 through two upper die fixing rods 4, and one end of each upper die fixing rod 4 is connected with the upper die plate 2 through a screw. The rail bottom trimming die 804 and the rail head trimming die 802 are fixed to the upper die plate 2 by screws, respectively, and are positioned by keys. As shown in fig. 11, the first block cutting edge 8062, the second block cutting edge 8064, and the third block cutting edge 8066 are respectively fixed to the rail bottom trimming die 804 by means of hexagon socket head screws. As shown in fig. 9 and 10, the cutting edges (four pieces) are respectively secured to the rail bottom trimming die 804 by means of internal hex pan head screws. The lower die 1004 is fixed to the lower die plate 1002 by screws, and is positioned by keys. The upper and lower templates 1002 are integrally connected by a guide post 14 and a fastener 16.
The device of the embodiment is assembled into a whole, and the using steps are as follows:
1. the entire rail flash cutting device is installed in a press and is fixed on a workbench of the press through a U-shaped groove and bolts of the lower die plate 1002.
2. And (3) moving down the slide block of the press to the position of the upper template 2, and controlling the distance between the slide block and the upper template 2 to be 0-20mm.
3. The guide post 14 and the fastener 16 on the upper die plate 2 are disassembled and fixed on the press slide block through the U-shaped groove and the bolt of the upper die plate 2.
4. The upper die 6 portion is separated from the lower die 1004 portion by an up-moving press ram.
5. The guide post 14 on the template 1002 is disassembled to fix the fastener 16, and the guide post 14 is taken out.
The working process of the device of the embodiment is as follows:
1. the rail heel end is placed on a lower die 1004, the lower die 1004 coinciding with the rail profile.
2. The press drives the upper die 6 to partially descend, and the upper die 6 coincides with the profile of the heel end of the steel rail.
3. The press continues to move downwards, the upper die 6 keeps the superposition state with the heel end of the steel rail, and the upper die fixing rod 4 slides downwards in the upper die 6.
4. The spring 12 is pressed between the upper die plate 2 and the upper die 6, and the reaction force of the spring 12 further presses the heel end of the steel rail through the upper die 6, so that the heel end of the steel rail is stably fixed in the cavity of the upper die 6.
5. The press continues to descend and the cutting edge 806 of the trimming die 8 contacts the flash 20, and as the press descends the cutting edge 806 shears the flash 20, the flash 20 is removed from falling.
6. After the flash 20 falls, the press goes up, the spring 12 gradually stretches, and the heel end of the steel rail is pushed out of the cutting edge 806 through the upper die 6, so that the cutting work of the flash 20 is completed.
After the use is completed, the disassembly steps are as follows:
1. The guide post 14 is loaded into the lower die plate 1002 and the fastener 16 is used to secure the guide post 14 to the lower die plate 1002.
2. The slide block of the press is moved downwards to enable the distance between the lower surface of the upper template 2 and the step surface of the guide post 14 to be 0-20mm.
3. The U-bolts of the upper and lower templates 2 and 1002 are removed.
4. The mounting posts 14 and fasteners 16 secure the upper and lower die 1004 portions together.
5. And (3) moving the press slide upwards to integrally remove the steel rail flash cutting device in the embodiment.
The steel rail flash cutting device of the embodiment can be installed on the existing steel rail heel end forming equipment for use. The steel rail forging flash 20 can be efficiently cut off, and the labor productivity is high.
The steel rail overlap cutting device of the embodiment has an ejection function, and can easily push the steel rail heel end out of a cutting edge 806 shearing area of the trimming die 8 after trimming is completed, so that the die clamping problem is solved.
The mounting position of the cutting edge 806 of the steel rail flash cutting device can be adjusted according to actual needs, and the problem that the clearance value of the conventional trimming die 8 is fixed and cannot be adjusted is solved.
The blocking cutting edge of this embodiment can be changed fast convenient, realizes the purpose of timely change after the different regional cutting edges 806 of rail heel wear out, and replacement cost is low.
The steel rail flash cutting device of the embodiment is divided into an upper part structure and a lower part structure, and the upper part structure and the lower part structure are respectively fixed on a press slide block and a workbench through a pressing plate and a screw. The upper and lower parts are positioned by the specially designed guide posts 14, the upper template 2, the lower template 1002 and the guide posts 14 are fixed by the fasteners 16, and the disassembly and the assembly can be conveniently carried out. The guide post 14 is designed with a guide post groove 1408, a straight rod segment 1604 of the fastener 16 is inserted into the groove, a thread segment 1602 of the fastener 16 is screwed into the template, and the relative position of the guide post 14 and the upper template 1002 is limited. The end of the guide post 14 is provided with a guide surface 1406 and a positioning surface 1404, which are convenient for guiding and positioning during installation and disassembly. The upper die 6 and the lower die 1004 are ensured to belong to an integral device, the integral device is convenient to be integrally installed in or detached from the equipment, and the relative positions of the upper die 6 and the lower die 1004 are ensured to be used each time. The device is integrally arranged on the equipment, and the rear guide post 14 can be conveniently taken out.
In the device of the embodiment, the lower die 1004 is positioned through the positioning key 1006, the upper die 6 is fixed on the upper die plate 2 through the upper die fixing rod 4, the width of the upper die 6 is designed to be the same as that of the lower die 1004, the positions of the upper die 6 and the lower die 1004 are positioned during assembly conveniently, the positions of the upper die 6 and the lower die 1004 are ensured to be fixed relative to each other through adjusting the positions of the lower die 1004 during assembly, and the steel rail is not deformed between the upper die 1004 and the lower die 1004 during cutting off the flash 20.
In the embodiment, the working surfaces of the upper die 6 and the upper die fixing rod 4 are internally provided with the oil groove 18, and lubricating grease can be smeared in the oil groove 18, so that the upper die 6 can slide smoothly and stably on the working surfaces.
The spring mounting hole is designed between the upper die 6 and the upper die plate 2, the spring 12 is convenient to install and fix, the upper die 6 slides on the upper die fixing rod 4 in the process of cutting off the flash 20 through the spring 12, the heel end of a steel rail is pressed and fixed, and after the flash 20 is cut off, the heel end of the steel rail is easily and stably pushed out of a cutting edge 806 area. Avoiding the phenomenon of die clamping.
The device cutting edge 806 of the embodiment comprises a plurality of blocking cutting edges, the shape of which is designed according to the shape of the actual flash 20, so that when the flash 20 is cut off, the cutting edge 806 always contacts the flash 20, and deformation of the flash 20 during cutting off is reduced.
When the device of the embodiment cuts off the flash 20, the upper die 6 firstly contacts downwards and gradually compresses the heel end of the steel rail through the thrust of the spring 12, the steel rail is fixed in the cavity of the upper die 6, and when the cutting edge 806 is cut off, only the shearing area of the flash 20 is stressed, so that the deformation of the cutting edge is avoided.
The device of the embodiment is designed according to the trimming deformation trend, and through the design of the upper die 6 cavity, the deformation part is kept in the cavity, so that the shape, position and size of the heel end of the steel rail are ensured to be kept all the time, and the trimming deformation problem of the heel end of the steel rail is well solved.
The rail bottom trimming die 804 and the rail head trimming die 802 of the device of the embodiment are fixed on the upper die plate 2 through keys and screws, the height is designed according to the requirement, and the height direction position of the cutting edge 806 is ensured.
The upper die fixing rod 4 of the device is fixed on the upper die plate 2 through screws, the head of the upper die fixing rod is designed into a connecting part 402 with a special-shaped step, the relative position of the upper die plate 2 is ensured to be fixed, and the screws are prevented from loosening. The bottom of the spring is provided with a step shaft type limiting step 406 for limiting the position of the upper die 6 so that the spring 12 always maintains a pre-tightening state.
The cutting edge 806 of the device is designed to be a block type, and is fixed on the rail head and rail bottom trimming die 804 by adopting a pan head screw, wherein the weight of each block is controlled below 3kg, and the device is convenient to install and replace.
The device of the embodiment has good assembly, the lower die 1004 adopts key positioning, the width design of the upper die 6 is the same as that of the lower die 1004, the alignment of the cavities of the upper die 6 and the lower die 1004 is convenient to adjust, and the upper die 6 and the lower die 1004 are ensured to be better. The process of cutting off the flash 20 at the heel end of the steel rail is completely pressed in the aligned cavities of the upper die 6 and the lower die 1004, so that the problem of pressed deformation of the heel end of the steel rail caused by wrong dies is avoided.
The device of the embodiment is divided into an upper part structure and a lower part structure, and the upper part structure and the lower part structure are respectively fixed on a press slide block and a workbench through a pressing plate and a screw. The upper and lower portions are positioned relative to each other by specially designed guide posts 14, and the upper and lower templates 1002 are secured to the guide posts 14 by fasteners 16. The guide post 14 is designed with a guide post recess 1408, and the straight rod segment 1604 of the fastener 16 is received in the guide post recess 1408. The end of the guide post 14 is provided with a guide surface 1406 and a positioning surface 1404, so that the guide and positioning during installation and disassembly are convenient. The upper die 1004 and the lower die 1004 are guaranteed to belong to an integral device, the integral device is convenient to be integrally installed into or detached from the device, the alignment of the cavities of the upper die 6 and the lower die 1004 is guaranteed each time, and the guide post 14 can be conveniently taken out after being installed on the device.
The device of the embodiment is designed according to the trimming deformation trend, and through the design of the cavity, the deformation part is kept in the cavity, so that the shape, position and size of the steel rail heel end are always kept, and the defect that the appearance size of the steel rail heel end is unqualified due to trimming deformation is well overcome.
The device of the embodiment is arranged on the existing steel rail heel end forming equipment, can efficiently cut off the steel rail forging flash 20, and has high labor productivity. The problems of low efficiency, increased procedures and equipment, large dust, large cutting difficulty and the like of other removing modes of the steel rail heel forging flash 20 are solved.
According to the device, the structure of the built-in spring 12 is designed according to the shearing stroke of the flash 20, the heel end of the steel rail can be pressed and fixed before the flash 20 is cut, and the heel end of the steel rail can be easily and stably pushed out of the cutting edge 806 area after the flash 20 is cut. The function of pressing and ejecting the heel end of the steel rail can be realized, and the phenomenon of clamping the heel end of the steel rail is avoided.
In the embodiment, the oil grooves 18 are designed in the working surfaces of the upper die fixing rod 4 and the upper die 6, and lubricating grease can be smeared in the oil grooves 18, so that the upper die 6 can slide smoothly and stably on the oil grooves 18. The head of the upper die fixing rod 4 is designed into a special-shaped step, and the connecting part 402 ensures the fixing of the position of the upper die fixing rod 4 and prevents the loosening of screws. According to the shearing stroke of the flash 20, a limiting step 406 in the form of a step shaft is designed at the lower part of the upper die fixing rod 4 to limit the position of the upper die 6, so that the spring 12 is always kept in a pre-tightening state. Thereby realizing the functions of compressing and fixing and ejecting the heel end of the steel rail.
The trimming cutting edge 806 of the device is designed into a 'block type', and is fixed by adopting a pan head screw, wherein the weight of each block is controlled below 3kg, and the device is convenient to install and replace. The mounting position of the cutting edge 806 is designed to be transversely adjustable, and the adjustment range is 0-5mm. The cutting position of the cutting edge 806 can be adjusted in real time according to the width of the shearing band of the flash 20. For example, when the edge 20 is worn at the edge 20 of the final forging die, the actual shearing band of the edge 20 is widened, the shearing force is increased, the edge 806 position is adjusted outwards, the shearing band is reduced, and the shearing force is reduced. After the new final forging die is replaced, the position of the trimming cutting edge 806 is adjusted inwards, so that the trimming 20 is guaranteed to be cut completely. The problem that the clearance value of a conventional trimming die 8 is fixed and cannot be adjusted is solved. The 'blocking type' design can realize quick and convenient replacement, realizes timely and convenient replacement of the single cutting edge 806 after abrasion, and has no need of integral replacement and low replacement cost. The shape of the cutting edge 806 is designed according to the shape of the actual flash 20, so that when the flash 20 is cut off, the cutting edge 806 always contacts the flash 20, and deformation of the flash 20 during cutting is reduced.
In the present invention, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and the terms "connected" may be, for example, a fixed connection, a removable connection, or an integral connection, and the terms "connected" may be directly or indirectly connected through an intermediary. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In the description of the present specification, the terms "one embodiment," "some embodiments," "particular embodiments," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010329111.2A CN111318634B (en) | 2020-04-23 | 2020-04-23 | Rail flash removal device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010329111.2A CN111318634B (en) | 2020-04-23 | 2020-04-23 | Rail flash removal device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111318634A CN111318634A (en) | 2020-06-23 |
| CN111318634B true CN111318634B (en) | 2025-01-21 |
Family
ID=71164600
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010329111.2A Active CN111318634B (en) | 2020-04-23 | 2020-04-23 | Rail flash removal device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111318634B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116944644A (en) * | 2023-08-08 | 2023-10-27 | 清华大学 | Device and method for removing residual materials and flash of friction welding intermediate piece |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101912945A (en) * | 2010-07-29 | 2010-12-15 | 中铁轨道系统集团有限公司道岔分公司 | Method for forging and pressing heel of AT steel rail |
| CN105855443A (en) * | 2016-04-07 | 2016-08-17 | 中车戚墅堰机车车辆工艺研究所有限公司 | Trimming concave die with combined-type cutting edge |
| CN208696107U (en) * | 2018-09-07 | 2019-04-05 | 廖子良 | One kind making the on-deformable reinforcing rib mold of product |
| CN209597941U (en) * | 2018-11-07 | 2019-11-08 | 浙江元美铝业科技有限公司 | Bullodozer is used in a kind of processing of aluminium alloy |
| CN212019273U (en) * | 2020-04-23 | 2020-11-27 | 中国铁建重工集团股份有限公司 | Steel rail flash cutting device |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5180749B2 (en) * | 2008-09-11 | 2013-04-10 | 株式会社神戸製鋼所 | Trimming apparatus and trimming method |
| CN206936100U (en) * | 2017-07-31 | 2018-01-30 | 成都大学 | A kind of New Trimming tool |
| CN109663876A (en) * | 2017-10-14 | 2019-04-23 | 辽宁五八内燃机配件有限公司 | A kind of edge-cutting and hole-punching correcting combined die and its application method suitable for forging automatic production line |
| CN110125305A (en) * | 2019-06-18 | 2019-08-16 | 江苏太平洋精锻科技股份有限公司 | A kind of Car Change-speed Gear Box Binding Gear hot trimming mold |
-
2020
- 2020-04-23 CN CN202010329111.2A patent/CN111318634B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101912945A (en) * | 2010-07-29 | 2010-12-15 | 中铁轨道系统集团有限公司道岔分公司 | Method for forging and pressing heel of AT steel rail |
| CN105855443A (en) * | 2016-04-07 | 2016-08-17 | 中车戚墅堰机车车辆工艺研究所有限公司 | Trimming concave die with combined-type cutting edge |
| CN208696107U (en) * | 2018-09-07 | 2019-04-05 | 廖子良 | One kind making the on-deformable reinforcing rib mold of product |
| CN209597941U (en) * | 2018-11-07 | 2019-11-08 | 浙江元美铝业科技有限公司 | Bullodozer is used in a kind of processing of aluminium alloy |
| CN212019273U (en) * | 2020-04-23 | 2020-11-27 | 中国铁建重工集团股份有限公司 | Steel rail flash cutting device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111318634A (en) | 2020-06-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN212019273U (en) | Steel rail flash cutting device | |
| CN110216192B (en) | Stamping device capable of quickly replacing dies | |
| CN1332063A (en) | Automatic centering and edge-trimming tool bit | |
| CN201889384U (en) | Precision forging die for hammer forging of universal joint pin without flash | |
| CN111318634B (en) | Rail flash removal device | |
| CN220028378U (en) | Punching device for forging | |
| CN114558892B (en) | A seamless steel pipe perforation device | |
| CN112296190B (en) | Steering knuckle forge piece correction and center hole composite forming process die | |
| CN222094447U (en) | Stamping die for automobile parts | |
| CN211679648U (en) | Punch press convenient to change mould | |
| CN212384300U (en) | Die and molding equipment for extrusion molding | |
| CN1385623A (en) | Rivet-free metal riveting method | |
| CN217251986U (en) | Workpiece rotary cutting device | |
| CN213856568U (en) | Quick and efficient edge trimmer with positioning structure | |
| CN214556763U (en) | Drawing chamfering compound die | |
| CN224087723U (en) | Automobile part punching tool capable of rapidly replacing die | |
| CN209697807U (en) | A kind of general edge-cutting and hole-punching device of steel die forging piston | |
| CN115464083B (en) | Combined gear-cutting die | |
| CN221089317U (en) | A cutting device | |
| CN214235883U (en) | Full-automatic multi-station punch forming equipment | |
| CN210435196U (en) | Punching and riveting integrated die | |
| CN222113425U (en) | Die for forging and stamping metal section bar | |
| CN219766563U (en) | Multidirectional stamping die | |
| CN120116289B (en) | New energy automobile right instrument board end cover die-cut mould | |
| CN220611976U (en) | Flat cotter pin press-fitting device for railway freight car |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |