Rail flash removal device

Abstract

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 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

[0001] The present invention relates to the technical field of rail transportation, and in particular to a rail flash cutting device. Background Art

[0002] In the prior art, the rails are prepared by a hot forging process. In order to remove excess metal during the hot forging process, necessary process resistance is applied to ensure that the metal fills the cavity, thereby forming a forging flash at the parting surface of the heel of the rail.

[0003] The flash at the heel end of the rail has a great impact on the quality of the rail. If the subsequent process is not handled properly, the rail will still be scrapped. In the prior art, a concave and convex die is usually designed, and the forging is placed on the die hole. Under the push of the punch, the flash of the forging is sheared and removed by the die cutting edge. Cutting the flash by a concave and convex die will cause the forging to deform after trimming. For forgings with high precision requirements, a correction or precision pressing process will be added after trimming, and it is necessary to increase the unit equipment and corresponding molds. The existing layout of the hot forging forming process equipment for the heel end of the rail cannot realize the correction or precision pressing process. In addition, in the prior art, after the forging is trimmed, the forging is pushed out of the die hole by the punch and taken out from the bottom of the die. Because the rail is a long, heavy and slender rod, after the flash of the heel end of the rail is trimmed, the rail needs to be pushed out of the cutting edge shearing area again. The rail is prone to die jamming, and even causes serious bending of the heel end of the rail. Due to the violent metal flow at the flash of the hot forging model cavity at the heel end of the rail, the mold cavity is prone to wear near the parting surface. The flash shear surface increases with the number of times the mold is used, and the trimming shear force increases accordingly, which will aggravate the trimming deformation and clamping problems of the rail. Summary of the invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art.

[0005] In view of this, the present invention provides a rail flash cutting device, comprising: an upper template; an upper template fixing rod, connected to the upper template; an upper template, sleeved on the upper template fixing rod, the end face shape of the upper template facing away from the upper template is adapted to the shape of the web of the rail; a trimming die, connected to the upper template, and located on both sides of the upper die; a lower die assembly, arranged opposite to the upper die, the end face shape of the lower die assembly facing the upper die is adapted to the shape of the web of the rail, and the upper die is located between the lower die assembly and the upper template.

[0006] The rail flash cutting device provided by the present invention, during operation, sets the rail to be flash cut on the lower die assembly, the lower die assembly supports the web on one side of the rail, the upper die moves toward the lower die assembly to abut against the web on the other side of the rail, and the trimming die moves toward the lower die assembly to cut the flash of the rail head and rail bottom of the rail. After the flash cutting is completed, the upper die and the trimming die move away from the lower die assembly to remove the rail.

[0007] The rail flash cutting device provided by the present invention can clamp and fix the rail during the flash cutting process by the trimming die through the arrangement of the upper die and the lower die assembly, thereby preventing the rail from being deformed. At the same time, after the flash cutting is completed, it is only necessary to control the trimming die and the upper die to be away from the lower die assembly to complete the material cutting. During the material cutting process, no friction is generated between the rail and the rail flash cutting device, thereby preventing the occurrence of die jamming, further preventing the rail from being deformed, and ensuring the quality of the rail.

[0008] In addition, the rail flash removal device in the above technical solution provided by the present invention may also have the following additional technical features:

[0009] In the above technical solution, further, the upper mold fixing rod includes: a connecting part connected to the upper mold plate; a guiding part connected to the connecting part; and a limiting step connected to the guiding part; wherein the upper mold is sleeved on the guiding part and abuts against the limiting step.

[0010] In this technical solution, a structure of an upper mold fixing rod is further provided, and the upper mold fixing rod includes a connecting portion, a guiding portion and a limiting step. The connecting portion serves to connect and fix the upper mold fixing rod and the upper mold plate. The upper mold is sleeved on the guiding portion and can slide relative to the guiding portion. The limiting step serves to limit the upper mold to prevent the upper mold from falling off through the upper mold fixing rod. Through the setting of the upper mold fixing rod, the upper mold can slide relative to the upper mold fixing rod. During the working process, the upper mold will first abut against the web of the rail, and then the trimming mold will contact the flash of the rail, so that the flash can be cut off after the upper mold and the lower mold assembly complete the clamping of the rail, thereby avoiding deformation of the rail and ensuring the quality of the rail.

[0011] In any of the above technical solutions, further, the rail flash removal device also includes: a spring, the upper die and / or the upper die plate are provided with a spring mounting hole, the spring is arranged in the spring mounting hole, and is located between the upper die plate and the upper die.

[0012] In this technical solution, a spring and a spring mounting hole are further provided. The spring is provided in the spring mounting hole. One free end of the spring abuts against the upper mold plate, and the other free end abuts against the upper mold.

[0013] During the flash cutting process, after the upper die abuts against the web of the rail, the upper die plate drives the trimming die to move toward the lower die assembly, which compresses the spring and gradually increases the clamping force applied by the upper die on the rail. On the one hand, it can ensure the stable clamping of the rail and avoid deformation of the rail; on the other hand, the gradual application of pressure can avoid deformation of the rail caused by direct and forced application of pressure, further ensuring the quality of the rail.

[0014] After the flash is removed, the upper die and trimming die move away from the lower die assembly. At this time, the spring reset can provide auxiliary thrust to easily and smoothly push the heel of the rail out of the cutting edge area of ​​the trimming die, avoiding die jamming.

[0015] In any of the above technical solutions, further, the lower mold assembly includes: a lower mold plate; a lower mold connected to the lower mold plate; a positioning key, the lower mold plate and the lower mold are provided with positioning grooves, and the positioning key is arranged in the positioning groove.

[0016] In the technical solution, the composition of the lower die assembly is further defined, and the lower die assembly includes a lower mold plate and a lower mold, and the lower mold and the lower mold plate are positioned by a positioning groove and a positioning key, so that the lower mold and the upper mold are relatively arranged, and the rail can be clamped by the lower mold and the upper mold. Furthermore, the lower mold can be fixed to the lower mold plate by screws.

[0017] 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 relative to each other, thereby avoiding deformation of the rail due to misalignment between the upper die and the lower die.

[0018] In any of the above technical solutions, further, the rail flash cutting device also includes: a guide post, one end of the guide post is connected to the upper template, and the other end is connected to the lower template; a plurality of fasteners, the plurality of fasteners are divided into two groups, one group passes through the guide post and is connected to the upper template, and the other group passes through the guide post and is connected to the lower template.

[0019] In this technical solution, guide columns and fasteners are further provided, and the upper template and the lower template can be connected by the provision of the guide columns and the fasteners. On the one hand, the rail flash cutting device can be modularized as an entirety, which is convenient for handling and transportation; on the other hand, the guide columns and the fasteners also play a role in positioning the upper template and the lower template assembly, avoiding misalignment between the upper mold connected to the upper template and the lower mold connected to the lower template, and avoiding deformation of the rail due to misalignment.

[0020] In this technical solution, by setting the guide column and the fastener, the rail flash cutting device can be set on the existing equipment to provide driving force for the rail flash cutting device to complete the cutting of the rail flash. For example, the rail flash cutting device is set on the press, the slide of the press is connected to the upper template, the lower template is fixed on the workbench of the press, and then the guide column and the fastener are removed to unlock the upper template and the lower template. At the same time, due to the positioning function of the guide column, the setting position of the upper mold and the lower mold can be ensured, and the slide of the press is directly driven to move toward or away from the workbench to achieve the removal of the rail flash.

[0021] In any of the above technical solutions, further, the guide column includes: a column body; a positioning surface, which is arranged at both ends of the column body; a guide surface, which is arranged at one end of the column body away from the positioning surface; a guide column groove, which is arranged between the positioning surface and the guide surface; the fastener includes: a threaded section, which is screwed and fixed on the upper template or the lower template; a straight rod section, which is connected to the threaded section and is adapted to be arranged in the guide column groove.

[0022] In this technical solution, the structure of the guide column and the fastener is further provided, the guide column includes a column body, a positioning surface and a guide surface. The guide surface is provided to facilitate the insertion of the guide column into the upper template or the lower template, and the positioning surface is provided to play a role in positioning and limiting. The fastener includes a threaded section and a straight rod section. When the fastener fixes the guide column, the straight rod section of the fastener is arranged in the groove of the guide column to play a role in positioning the guide column. At the same time, the threaded section of the fastener is connected to the upper template or the lower template to achieve the fixation between the guide column and the upper template and the lower template, thereby ensuring the positioning function of the guide column and limiting the position of the upper template and the lower template.

[0023] In any of the above technical solutions, further, the trimming die includes: a rail head trimming die, connected to the upper die plate and arranged on one side of the upper die; a rail bottom trimming die, connected to the upper die plate and arranged on the other side of the upper die; a cutting edge, connected to the rail head trimming die and the rail bottom trimming die.

[0024] In this technical solution, the composition of the trimming die is further provided, and the trimming die includes a rail head trimming die and a rail bottom trimming die. The rail head trimming die is used to cut off the burrs at the rail head end of the rail, and the rail bottom trimming die is used to cut off the burrs at the rail bottom end of the rail, thereby ensuring the trimming effect.

[0025] In any of the above technical solutions, further, the cutting edge includes a plurality of segmented cutting edges, and the segmented cutting edges are connected to the rail head trimming die and the rail bottom trimming die by screws.

[0026] In this technical solution, the composition of the cutting edge is further provided, and the cutting edge includes a plurality of segmented cutting edges. Through the arrangement of the plurality of segmented cutting edges, on the one hand, the segmented cutting edges can be prepared and produced separately, and then assembled and installed, thereby reducing the production cost of the cutting edge, and at the same time, each segmented cutting edge has a low weight, which is convenient for installation and fixation; on the other hand, as the cutting edge wears during use, the segmented cutting edge with more severe wear can be replaced based on actual conditions, without replacing the entire cutting edge, thereby further reducing maintenance costs; on the other hand, in the process of cutting off flash, gaskets can be arranged between adjacent segmented cutting edges or between segmented cutting edges and the rail head trimming die and the rail bottom trimming die to adjust the setting position of the cutting edge, so that the position of the cutting edge can be adjusted, thereby ensuring that the cutting edge can accurately cut off the flash of the rail and guaranteeing the quality of the rail.

[0027] Specifically, a plurality of threaded holes may be provided at one end of the rail head trimming die and the rail bottom trimming die facing the lower die assembly, and the position can also be adjusted by selecting different threaded holes to fix the segmented cutting edges.

[0028] In any of the above technical solutions, further, the rail flash cutting device also includes: a press, the press includes a workbench and a slider; wherein, a connecting part is provided on the upper mold plate and the lower mold assembly, the upper mold plate is connected to the slider through the connecting part, and the lower mold assembly is connected to the workbench through the connecting part.

[0029] This technical solution further includes a press, which serves as a power source for the rail flash cutting device. When in use, the rail flash cutting device is set on the press, the slider of the press is connected to the upper template, and the lower template is fixed on the workbench of the press. The slider of the press is driven toward or away from the workbench to achieve the removal of the rail flash.

[0030] In any of the above technical solutions, further, the rail flash cutting device also includes: an oil groove, which is opened on the upper die fixing rod and / or the upper die, and is located between the upper die fixing rod and the upper die.

[0031] This technical solution further includes an oil groove, which is arranged on the upper mold fixing rod and / or the upper mold, and is located in the working surface of the upper mold and the upper mold fixing rod. Grease can be applied to the oil groove to ensure that the upper mold slides smoothly and steadily on the upper mold fixing rod.

[0032] Additional aspects and advantages of the present invention will become apparent from the following description or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0034] Figure 1 A schematic diagram of the structure of a rail with flash is shown;

[0035] Figure 2 A schematic structural diagram of a rail flash removal device provided in accordance with an embodiment of the present invention is shown;

[0036] Figure 3 A side view of a rail flash removal device provided according to an embodiment of the present invention is shown;

[0037] Figure 4 A top view of a rail flash removal device provided according to an embodiment of the present invention is shown;

[0038] Figure 5A schematic structural diagram of an upper mold fixing rod provided according to an embodiment of the present invention is shown;

[0039] Figure 6 A schematic structural diagram of a guide column provided according to an embodiment of the present invention is shown;

[0040] Figure 7 A schematic structural diagram of a fastener provided according to an embodiment of the present invention is shown;

[0041] Figure 8 A schematic structural diagram of an upper mold provided according to an embodiment of the present invention is shown;

[0042] Fig. 9 A schematic diagram of the structure of a cutting edge provided according to an embodiment of the present invention is shown;

[0043] Fig.10 shows a cross-sectional view of a cutting edge provided according to one embodiment of the present invention;

[0044] Fig.11 It shows a schematic structural diagram of the installation state of the segmented cutting edge provided in accordance with an embodiment of the present invention;

[0045] Fig.12 A schematic structural diagram of an oil tank provided according to an embodiment of the present invention is shown.

[0046] in, Figures 1 to 12 The corresponding relationship between the reference numerals and the component names is as follows:

[0047] 2 upper template, 4 upper mold fixing rod, 6 upper mold, 8 trimming mold, 10 lower mold assembly, 12 spring, 14 guide column, 16 fastener, 18 oil groove, 20 flash, 402 connecting part, 404 guide part, 406 limiting step, 802 rail head trimming mold, 804 rail bottom trimming mold, 806 cutting edge, 1002 lower template, 1004 lower mold, 1006 positioning key, 1402 column, 1404 positioning surface, 1406 guide surface, 1408 guide column groove, 1602 threaded section, 1604 straight rod section, 8062 first block cutting edge, 8064 second block cutting edge, 8066 third block cutting edge. DETAILED DESCRIPTION

[0048] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0049] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited to the specific embodiments disclosed below.

[0050] Refer to the following Figures 1 to 12 A rail flash removal device according to some embodiments of the present invention is described.

[0051] Embodiment 1

[0052] like Figures 2 to 4 As shown, one embodiment of the present invention provides a rail flash removal device, comprising: an upper mold plate 2, an upper mold fixing rod 4, an upper mold 6, a trimming mold 8 and a lower mold assembly 10.

[0053] Among them, the upper mold fixing rod 4 is connected to the upper mold plate 2; the upper mold 6 is sleeved on the upper mold fixing rod 4, and the end face shape of the upper mold 6 facing away from the upper mold plate 2 is adapted to the shape of the web of the rail; the trimming mold 8 is connected to the upper mold plate 2 and is located on both sides of the upper mold 6; the lower mold assembly 10 is arranged opposite to the upper mold 6, and the end face shape of the lower mold assembly 10 facing the upper mold 6 is adapted to the shape of the web of the rail, and the upper mold 6 is located between the lower mold assembly 10 and the upper mold plate 2.

[0054] like Figure 1 and Figure 2 As shown, in the rail flash removal device provided by the present invention, during operation, the rail to be flashed 20 is placed on the lower die assembly 10, the lower die assembly 10 supports the web on one side of the rail, the upper die 6 moves toward the lower die assembly 10 to abut against the web on the other side of the rail, and the trimming die 8 moves toward the lower die assembly 10 to remove the flash 20 of the rail head and rail bottom of the rail. After the flash 20 is removed, the upper die 6 and the trimming die 8 move away from the lower die assembly 10 to remove the rail.

[0055] The rail flash removal device provided by the present invention can clamp and fix the rail during the process of the trimming die 8 cutting the flash 20 by means of the upper die 6 and the lower die assembly 10, thereby preventing the rail from being deformed. At the same time, after the trimming die 20 is cut, it is only necessary to control the trimming die 8 and the upper die 6 to be away from the lower die assembly 10 to complete the material cutting. During the material cutting process, no friction is generated between the rail and the rail flash removal device, thereby preventing the occurrence of die jamming, further preventing the rail from being deformed, and ensuring the quality of the rail.

[0056] Embodiment 2

[0057] like Figures 2 to 4 As shown, one embodiment of the present invention provides a rail flash removal device, comprising: an upper mold plate 2, an upper mold fixing rod 4, an upper mold 6, a trimming mold 8 and a lower mold assembly 10.

[0058] Among them, the upper mold fixing rod 4 is connected to the upper mold plate 2; the upper mold 6 is sleeved on the upper mold fixing rod 4, and the end face shape of the upper mold 6 facing away from the upper mold plate 2 is adapted to the shape of the web of the rail; the trimming mold 8 is connected to the upper mold plate 2 and is located on both sides of the upper mold 6; the lower mold assembly 10 is arranged opposite to the upper mold 6, and the end face shape of the lower mold assembly 10 facing the upper mold 6 is adapted to the shape of the web of the rail, and the upper mold 6 is located between the lower mold assembly 10 and the upper mold plate 2.

[0059] like Figure 5 As shown, further, the upper mold fixing rod 4 includes: a connecting portion 402 connected to the upper mold plate 2; a guide portion 404 connected to the connecting portion 402; a limiting step 406 connected to the guide portion 404; wherein the upper mold 6 is sleeved on the guide portion 404 and abuts against the limiting step 406.

[0060] In this embodiment, the structure of the upper die fixing rod 4 is further provided, and the upper die fixing rod 4 includes a connecting portion 402, a guiding portion 404 and a limiting step 406. The connecting portion 402 serves to connect and fix the upper die fixing rod 4 and the upper mold plate 2. The upper die 6 is sleeved on the guiding portion 404 and can slide relative to the guiding portion 404. The limiting step 406 serves to limit the upper die 6 to prevent the upper die 6 from falling off through the upper die fixing rod 4. Through the setting of the upper die fixing rod 4, the upper die 6 can slide relative to the upper die fixing rod 4. During the working process, the upper die 6 will first abut against the web of the rail, and then the trimming die 8 will contact the flash 20 of the rail, so that the flash 20 is cut off after the upper die 6 and the lower die assembly 10 complete the clamping of the rail, thereby avoiding deformation of the rail and ensuring the quality of the rail.

[0061] Embodiment 3

[0062] like Figures 2 to 4 As shown, one embodiment of the present invention provides a rail flash removal device, comprising: an upper mold plate 2, an upper mold fixing rod 4, an upper mold 6, a trimming mold 8 and a lower mold assembly 10.

[0063] Among them, the upper mold fixing rod 4 is connected to the upper mold plate 2; the upper mold 6 is sleeved on the upper mold fixing rod 4, such as Figure 8 As shown, the end face shape of the upper mold 6 facing away from the upper mold plate 2 is adapted to the shape of the web of the rail; the trimming mold 8 is connected to the upper mold plate 2 and is located on both sides of the upper mold 6; the lower mold assembly 10 is arranged opposite to the upper mold 6, and the end face shape of the lower mold assembly 10 facing the upper mold 6 is adapted to the shape of the web of the rail, and the upper mold 6 is located between the lower mold assembly 10 and the upper mold plate 2.

[0064] like Figure 5As shown, further, the upper mold fixing rod 4 includes: a connecting portion 402 connected to the upper mold plate 2; a guide portion 404 connected to the connecting portion 402; a limiting step 406 connected to the guide portion 404; wherein the upper mold 6 is sleeved on the guide portion 404 and abuts against the limiting step 406.

[0065] like Figure 3 As shown, further, the rail flash removal device also includes: a spring 12, the upper mold 6 and / or the upper mold plate 2 are provided with a spring mounting hole, and the spring 12 is arranged in the spring mounting hole and located between the upper mold plate 2 and the upper mold 6.

[0066] 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 mold plate 2 , and the other free end abuts against the upper mold 6 .

[0067] During the process of cutting off the flash 20, after the upper die 6 abuts against the web of the rail, the upper die plate 2 drives the trimming die 8 to move toward the lower die assembly 10, which will compress the spring 12 and gradually increase the clamping force applied by the upper die 6 to the rail. On the one hand, it can ensure the stable clamping of the rail and avoid deformation of the rail; on the other hand, the gradual application of pressure can avoid deformation of the rail caused by direct and forced application of pressure, thereby further ensuring the quality of the rail.

[0068] After the flash 20 is cut off, the upper die 6 and the trimming die 8 move away from the lower die assembly 10. At this time, the spring 12 resets to provide auxiliary thrust, easily and smoothly pushing the heel of the rail out of the cutting edge 806 area of ​​the trimming die 8, avoiding the die jamming phenomenon.

[0069] Embodiment 4

[0070] On the basis of any one of the embodiments 1 to 3, Figure 2 and Figure 3 As shown, further, the lower mold assembly 10 includes: a lower mold plate 1002; a lower mold 1004 connected to the lower mold plate 1002; a positioning key 1006, and positioning grooves are provided on the lower mold plate 1002 and the lower mold 1004, and the positioning key 1006 is set in the positioning groove.

[0071] In this embodiment, the composition of the lower die assembly 10 is further defined, and 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, ensuring that the lower die 1004 and the upper die 6 are arranged relative to each other, and the rail can be clamped by the lower die 1004 and the upper die 6. Further, the lower die 1004 can be fixed to the lower die plate 1002 by screws.

[0072] Specifically, the width of the lower mold 1004 is the same as that of the upper mold 6 , so that the upper mold 6 and the lower mold 1004 are arranged relative to each other, thereby avoiding deformation of the rail due to misalignment between the upper mold 6 and the lower mold 1004 .

[0073] like Figures 2 to 4 As shown, further, the rail flash cutting device also includes: a guide post 14, one end of the guide post 14 is connected to the upper template 2, and the other end is connected to the lower template 1002; a plurality of fasteners 16, the plurality of fasteners 16 are divided into two groups, one group passes through the guide post 14 and is connected to the upper template 2, and the other group passes through the guide post 14 and is connected to the lower template 1002.

[0074] like Figure 4 As shown, in this embodiment, guide columns 14 and fasteners 16 are further provided. The upper template 2 and the lower template 1002 can be connected by the provision of the guide columns 14 and the fasteners 16. On the one hand, the rail flash removal device can be modularized as a whole, which is convenient for handling and transportation; on the other hand, the fasteners 16 play the same role as the fasteners 16 in positioning the upper template 2 and the lower template assembly 10, thereby avoiding misalignment between the upper mold 6 connected to the upper template 2 and the lower mold 1004 connected to the lower template 1002, thereby avoiding deformation of the rail due to misalignment.

[0075] In this embodiment, by setting the guide column 14 and the fastener 16, the rail flash cutting device can be set on the existing equipment to provide driving force for the rail flash cutting device to complete the cutting of the rail flash 20. For example, the rail flash cutting device is set on a press, the slider of the press is connected to the upper template 2, the lower template 1002 is fixed on the workbench of the press, and then the guide column 14 and the fastener 16 are removed to unlock the upper template 2 and the lower template 1002. At the same time, due to the positioning effect of the guide column 14, the setting position of the upper mold 6 and the lower mold 1004 can be ensured, and the slider of the press is directly driven to move toward or away from the workbench to achieve the removal of the rail flash 20.

[0076] like Figure 6 and Figure 7 As shown, further, the guide column 14 includes: a column 1402; a positioning surface 1404, which is arranged at both ends of the column 1402; a guide surface 1406, which is arranged at one end of the positioning surface 1404 away from the column 1402; a guide column groove 1408, which is arranged between the positioning surface 1404 and the guide surface 1406; the fastener 16 includes: a threaded section 1602, the threaded section 1602 is screwed and fixed on the upper template 2 or the lower template 1002; a straight rod section 1604, which is connected to the threaded section 1602 and is adapted to be arranged in the guide column groove 1408.

[0077] In this embodiment, the structure of the guide post 14 and the fastener 16 is further provided, and the guide post 14 includes a column 1402, a positioning surface 1404 and a guide surface 1406. The guide surface 1406 is provided to facilitate the insertion of the guide post into the upper template 2 or the lower template 1002, and the positioning surface 1404 is provided to play a role in positioning and limiting. The fastener 16 includes a threaded 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 the groove of the guide post 14, which plays a role in positioning the guide post 14. At the same time, the threaded section 1602 of the fastener 16 is connected to the upper template 2 or the lower template 1002 to achieve the fixation between the guide post 14 and the upper template 2 and the lower template 1002, thereby ensuring the positioning of the guide post 14 and limiting the position of the upper template 2 and the lower template 1002.

[0078] Embodiment 5

[0079] On the basis of any one of the embodiments 1 to 3, Figure 2 and Figures 8 to 11 As shown, further, the trimming die 8 includes: a rail head trimming die 802, connected to the upper die plate 2, and arranged on one side of the upper die 6; a rail bottom trimming die 804, connected to the upper die plate 2, and arranged on the other side of the upper die 6; a cutting edge 806, connected to the rail head trimming die 802 and the rail bottom trimming die 804.

[0080] In this embodiment, the composition of the trimming die 8 is further provided, and the trimming die 8 includes a rail head trimming die 802 and a rail bottom trimming die 804. The rail head trimming die 802 is used to cut off the flash 20 at the rail head end of the rail, and the rail bottom trimming die 804 is used to cut off the flash 20 at the rail bottom end of the rail, thereby ensuring the trimming effect.

[0081] like Figures 9 to 11 As shown, further, the cutting edge 806 includes a plurality of segmented cutting edges, and the segmented cutting edges are connected to the rail head trimming die 802 and the rail bottom trimming die 804 by screws.

[0082] In this embodiment, the composition of the cutting edge 806 is further provided, and the cutting edge 806 includes a plurality of segmented cutting edges. Through the arrangement of the plurality of segmented cutting edges, on the one hand, the segmented cutting edges can be prepared and produced separately, and then assembled and installed, thereby reducing the production cost of the cutting edge 806, and at the same time, each segmented cutting edge has a low weight, which is convenient for installation and fixation; on the other hand, as the cutting edge 806 wears during use, the segmented cutting edge with more severe wear can be replaced based on actual conditions, without replacing the entire cutting edge 806, thereby further reducing maintenance costs; on the other hand, in the process of cutting off the flash 20, gaskets can be arranged between adjacent segmented cutting edges or segmented cutting edges and the rail head trimming die 802 and the rail bottom trimming die 804 to adjust the setting position of the cutting edge 806, so that the position of the cutting edge 806 can be adjusted, thereby ensuring that the cutting edge 806 can accurately cut off the flash 20 of the rail and guaranteeing the quality of the rail.

[0083] Embodiment 6

[0084] On the basis of any one of embodiments one to three, further, the rail flash cutting device also includes: a press, the press includes a workbench and a slider; wherein, a connecting portion 402 is provided on the upper mold plate 2 and the lower mold assembly 10, the upper mold plate 2 is connected to the slider via the connecting portion 402, and the lower mold assembly 10 is connected to the workbench via the connecting portion 402.

[0085] In this embodiment, a press is further included, and the press serves as a power source for the rail flash cutting device. When in use, the rail flash cutting device is set on the press, the slider of the press is connected to the upper template 2, and the lower template 1002 is fixed on the workbench of the press. The slider of the press is driven toward or away from the workbench to achieve the removal of the rail flash 20.

[0086] Embodiment 7

[0087] On the basis of any one of the embodiments 1 to 3, Fig.12 As shown, further, the rail flash removal device also includes: an oil groove 18, which is opened on the upper die fixing rod 4 and / or the upper die 6 and is located between the upper die fixing rod 4 and the upper die 6.

[0088] In this embodiment, an oil groove 18 is further included. The oil groove 18 is arranged on the upper mold fixing rod 4 and / or the upper mold 6, and is located in the working surface of the upper mold 6 and the upper mold fixing rod 4. Grease can be applied to the oil groove 18 to ensure that the upper mold 6 slides smoothly and steadily on the upper mold fixing rod 4. Specific embodiments

[0090] like Figures 1 to 12As shown, an embodiment of the present embodiment provides a rail flash cutting device, including: an upper template 2, a lower template 1002, an upper mold 6, a lower mold 1004, a rail bottom trimming mold 804, a rail head trimming mold 802, an upper mold fixing rod 4, a guide column 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.

[0091] The assembly relationship of the device in this embodiment is as follows:

[0092] The upper die 6 is fixed to the upper die plate 2 by two upper die fixing rods 4, one end of which is connected to the upper die plate 2 by screws. The rail bottom trimming die 804 and the rail head trimming die 802 are fixed to the upper die plate 2 by screws and positioned by keys. Fig.11 As shown, the first segmented cutting edge 8062, the second segmented cutting edge 8064, and the third segmented cutting edge 8066 are respectively fixed to the rail bottom trimming die 804 by means of hexagon socket head screws. Fig. 9 and Fig.10 As shown, the cutting edges (four pieces) are fixed to the rail bottom trimming die 804 by hexagon socket pan head screws. The lower die 1004 is fixed to the lower die plate 1002 by screws and positioned by keys. The upper and lower die plates 1002 are connected as a whole by guide columns 14 and fasteners 16.

[0093] The device of this embodiment is assembled into a whole, and the steps of use are as follows:

[0094] 1. Install the rail flash cutting device as a whole into the press, and fix it on the workbench of the press through the U-shaped groove of the lower template 1002 and bolts.

[0095] 2. Move the slide of the press down to the position of the upper template 2, and control the distance between the slide and the upper template 2 to 0-20mm.

[0096] 3. Remove the guide column 14 and fastener 16 on the upper template 2, and fix them to the slide of the press through the U-shaped groove and bolts of the upper template 2.

[0097] 4. Move the press slide upward to separate the upper die 6 part from the lower die 1004 part.

[0098] 5. Remove the fasteners 16 that fix the guide posts 14 on the lower template 1002 and take out the guide posts 14.

[0099] The working process of the device in this embodiment is as follows:

[0100] 1. The heel of the rail is placed on the lower die 1004, and the lower die 1004 coincides with the contour of the rail.

[0101] 2. The press drives the upper die 6 to partially move downward, and the upper die 6 coincides with the contour of the heel end of the rail.

[0102] 3. The press continues to move downward, the upper die 6 remains in overlap with the heel of the rail, and the upper die fixing rod 4 slides downward in the upper die 6.

[0103] 4. The spring 12 between the upper mold plate 2 and the upper mold 6 is compressed, and the reaction force of the spring 12 further presses the heel end of the rail through the upper mold 6 to keep the heel end of the rail stably fixed in the cavity of the upper mold 6.

[0104] 5. The press machine continues to move downward, and the cutting edge 806 of the trimming die 8 contacts the flash 20. As the press machine moves downward, the cutting edge 806 shears the flash 20, and the flash 20 is removed and falls off.

[0105] 6. After the flash 20 falls off, the press machine moves upward, the spring 12 gradually extends, and the heel of the rail is pushed out of the cutting edge 806 through the upper die 6, completing the removal of the flash 20.

[0106] After use, the disassembly steps are as follows:

[0107] 1. Install the guide column 14 into the lower template 1002 and use the fastener 16 to fix the guide column 14 on the lower template 1002.

[0108] 2. Move the slide block of the press downward so that the distance between the lower surface of the upper template 2 and the step surface of the guide column 14 is 0-20mm.

[0109] 3. Remove the U-slot bolts of the upper template 2 and the lower template 1002.

[0110] 4. Install the guide pillars 14 and fasteners 16 to fix the upper and lower molds 1004 as a whole.

[0111] 5. Move the slide block of the press upward to remove the rail flash cutting device of this embodiment as a whole.

[0112] The rail burr cutting device of this embodiment can be installed on the existing rail heel end forming equipment for use, can effectively cut the rail forging burr 20, and has high labor productivity.

[0113] The rail flash cutting device of this embodiment has a built-in ejection function, which can easily push the heel end of the rail out of the shearing area of ​​the cutting edge 806 of the trimming die 8 after trimming is completed, thereby solving the die sticking problem.

[0114] The installation position of the cutting edge 806 of the rail flash cutting device in this embodiment can be adjusted according to actual needs, thereby solving the problem that the gap value of the conventional trimming die 8 is fixed and cannot be adjusted.

[0115] The segmented cutting edges of this embodiment can be replaced quickly and conveniently, so that the cutting edges 806 in different areas of the heel end of the rail can be replaced in time after being worn, and the replacement cost is low.

[0116] The rail flash removal device of this embodiment is divided into an upper and lower structure, which are fixed to the press slide and the workbench by a pressure plate and screws respectively. The upper and lower parts are positioned relative to each other by a specially designed guide column 14, and the upper template 2 and the lower template 1002 are fixed to the guide column 14 by fasteners 16, which can be easily disassembled and installed. The guide column 14 is designed with a guide column groove 1408, and the straight rod section 1604 of the fastener 16 is inserted into the groove, and the threaded section 1602 of the fastener 16 is screwed into the template to limit the relative position of the guide column 14 and the upper and lower templates 1002. The end of the guide column 14 is designed with a guide surface 1406 and a positioning surface 1404, which is convenient for guiding and positioning during installation and disassembly. It is ensured that the upper mold 6 and the lower mold 1004 are an integral device, which is convenient for the overall installation into the equipment or removal from the equipment, and the relative position of the upper mold 6 and the lower mold 1004 is guaranteed each time it is used. After the device is installed as a whole on the equipment, the guide column 14 can be easily removed.

[0117] In the device of this embodiment, the lower mold 1004 is positioned by the positioning key 1006, and the upper mold 6 is fixed on the upper mold plate 2 by the upper mold fixing rod 4. The upper mold 6 and the lower mold 1004 are designed to have the same width, which is convenient for positioning the upper mold 6 and the lower mold 1004 during assembly. During assembly, the position of the lower mold 1004 is adjusted to ensure that the relative position of the upper mold 6 and the lower mold 1004 is fixed, and to ensure that when the flash 20 is cut off, the rail is not deformed between the upper and lower molds 1004.

[0118] In the present embodiment, an oil groove 18 is designed in the working surface of the upper mold 6 and the upper mold fixing rod 4. Lubricating grease can be applied in the oil groove 18 to ensure that the upper mold 6 slides thereon smoothly and steadily.

[0119] In this embodiment, a spring mounting hole is designed between the upper die 6 and the upper die plate 2 to facilitate the installation of the fixing spring 12. The upper die 6 slides on the upper die fixing rod 4 during the process of cutting off the flash 20 through the spring 12, and presses and fixes the heel end of the rail. After the flash 20 is cut off, the heel end of the rail can be easily and smoothly pushed out of the cutting edge 806 area, thereby avoiding the die jam phenomenon.

[0120] The cutting edge 806 of the device of this embodiment includes a plurality of segmented cutting edges, the shape of which is designed according to the actual shape of the flash 20 to ensure that when the flash 20 is cut off, the cutting edge 806 always contacts the flash 20, thereby reducing deformation of the flash 20 when it is cut off.

[0121] When the device of this embodiment cuts off the flash 20, the upper die 6 first moves downward to contact and gradually press the heel end of the rail through the thrust of the spring 12, and fixes the rail in the cavity of the upper die 6. When the cutting edge 806 is cut off, only the shearing area of ​​the flash 20 is subjected to force, thereby avoiding deformation of the cut edge.

[0122] The device of this embodiment is designed according to the deformation trend of trimming. Through the cavity design of the upper mold 6, the deformed part is kept in the cavity, ensuring that the shape and position of the rail heel end always remain, thus effectively solving the deformation problem of trimming of the rail heel end.

[0123] In this embodiment, the rail bottom trimming die 804 and the rail head trimming die 802 are fixed to the upper mold plate 2 by keys and screws, and the height is designed according to needs to ensure the height direction position of the cutting edge 806.

[0124] In this embodiment, the upper mold fixing rod 4 is fixed to the upper mold plate 2 by screws, and its head is designed as a connection part 402 with a special-shaped step to ensure that it is fixed in the relative position of the upper mold plate 2 to prevent the screw from loosening. The bottom is designed with a step shaft-type limiting step 406 to limit the position of the upper mold 6 so that the spring 12 is always kept in a pre-tightened state.

[0125] The cutting edge 806 of the device of this embodiment is designed to be block-type and is fixed to the rail head and rail bottom trimming molds 804 using pan head screws. The weight of each block is controlled below 3 kg, and installation and replacement are easy.

[0126] The device of this embodiment has good assembly performance, the lower die 1004 is positioned by a key, and the upper die 6 and the lower die 1004 are designed to have the same width, which is convenient for adjusting the alignment of the upper die 6 and the lower die 1004 cavity, ensuring that the upper die 6 and the lower die 1004 are not misaligned. The process of cutting the flash 20 of the rail heel end is completely compressed in the aligned upper die 6 and the lower die 1004 cavity, avoiding the problem of compression deformation of the rail heel end due to misalignment.

[0127] The device of this embodiment is divided into two parts, the upper and lower parts, which are fixed to the slide block and the workbench of the press machine by a pressure plate and screws respectively. The upper and lower parts are positioned relative to each other by a specially designed guide column 14, and the upper and lower templates 1002 are fixed to the guide column 14 by a fastener 16. The guide column 14 is designed with a guide column groove 1408, and the straight rod section 1604 of the fastener 16 is inserted into the guide column groove 1408. The end of the guide column 14 is designed with a guide surface 1406 and a positioning surface 1404, which is convenient for guiding and positioning during installation and removal. Ensure that the upper and lower molds 1004 are an integral device, which is convenient for overall installation into the equipment or removal from the equipment, and ensure that the cavities of the upper mold 6 and the lower mold 1004 are aligned each time they are used. After installation in the equipment, the guide column 14 can be easily removed.

[0128] The device of this embodiment is designed according to the deformation trend of trimming. Through the cavity design, the deformed part is kept in the cavity, ensuring that the heel end of the rail always maintains its shape and position dimensions, which effectively solves the problem of unqualified external dimensions of the heel end of the rail due to trimming deformation.

[0129] The device of this embodiment is installed on the existing rail heel end forming equipment and can efficiently remove the rail forging flash 20 with high labor productivity. It solves the problems of low efficiency, additional processes and equipment, large dust, and great difficulty in removal of the rail heel end forging flash 20 in other removal methods.

[0130] The device of this embodiment is designed with a built-in spring 12 structure according to the shearing stroke of removing the flash 20, which can realize the compression and fixing of the rail heel before cutting the flash 20, and can easily and smoothly push the rail heel out of the cutting edge 806 area after cutting the flash 20. The function of compressing and ejecting the rail heel can be realized, avoiding the phenomenon of the rail heel being stuck in the mold.

[0131] In this embodiment, an oil groove 18 is designed in the working surface of the upper die fixing rod 4 and the upper die 6. Grease can be applied to the oil groove 18 to ensure that the upper die 6 slides smoothly and steadily thereon. The head of the upper die fixing rod 4 is designed as a special-shaped step, and the connecting part 402 ensures that the position of the upper die fixing rod 4 is fixed and prevents the screw from loosening. According to the shear stroke of removing the flash 20, a limit 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-tightened state. Thereby, the functions of pressing and fixing and ejecting the heel end of the rail are realized.

[0132] The trimming edge 806 of the device of this embodiment is designed to be "block-type" and is fixed with pan head screws. The weight of each piece is controlled below 3kg, and it is easy to install and replace. The installation position of the cutting edge 806 is designed to be laterally adjustable, and the adjustment range is 0-5mm. The shearing position of the cutting edge 806 can be adjusted in real time according to the width of the shear band of the flash 20. For example: the flash 20 is worn at the flash 20 of the final forging die, causing the actual shear band of the flash 20 to become wider, the shear force to increase, and the trimming deformation to be large, then the position of the cutting edge 806 is adjusted outward to reduce the shear band and reduce the shear force. After replacing the new final forging die, the position of the trimming edge 806 is adjusted inward to ensure that the flash 20 is completely cut. The problem that the gap value of the conventional trimming die 8 is fixed and cannot be adjusted is solved. The "block-type" design can realize quick and convenient replacement, and timely and convenient replacement of the worn cutting edge 806 single piece without the need for overall replacement, and the replacement cost is low. The shape of the cutting edge 806 is designed according to the actual shape of the flash 20 to ensure that when the flash 20 is cut off, the cutting edge 806 always contacts the flash 20, thereby reducing deformation of the flash 20 when it is cut off.

[0133] In the present invention, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense. For example, "connect" can be a fixed connection, a detachable connection, or an integral connection; "connect" can be a direct connection or an indirect connection through an intermediate medium. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0134] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "specific embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0135] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A rail flash removal device, characterized in that: include: Upper template; An upper mold fixing rod is connected to the upper mold plate, and one end of the upper mold fixing rod is connected to the upper mold plate by a screw; An upper die is sleeved on the upper die fixing rod, and the shape of the end face of the upper die away from the upper die plate is adapted to the shape of the web of the rail; A trimming die connected to the upper die plate and located on both sides of the upper die; A lower die assembly is arranged opposite to the upper die, the end surface of the lower die assembly facing the upper die is adapted to the shape of the web of the rail, and the upper die is located between the lower die assembly and the upper die; The rail is arranged on the lower die assembly, and the lower die assembly is used to support the web on one side of the rail. The upper die moves toward the lower die assembly to abut against the web on the other side of the rail, and the trimming die moves toward the lower die assembly to cut off the flash of the rail head and rail bottom of the rail.

2. The rail flash removal device according to claim 1, characterized in that: The upper die fixing rod comprises: A connecting portion connected to the upper template; A guide portion connected to the connecting portion; A limiting step connected to the guide portion; Wherein, the upper die is sleeved on the guide portion and abuts against the limiting step.

3. The rail flash removal device according to claim 2, characterized in that: Also includes: A spring, the upper die and / or the upper die plate are provided with a spring mounting hole, the spring is arranged in the spring mounting hole, and is located between the upper die plate and the upper die.

4. The rail flash removal device according to any one of claims 1 to 3, characterized in that: The lower mold assembly comprises: Next template; A lower mold, connected to the lower mold plate; A positioning key, wherein the lower template and the lower mold are provided with positioning grooves, and the positioning key is arranged in the positioning grooves.

5. The rail flash removal device according to claim 4, characterized in that: Also includes: A guide post, one end of which is connected to the upper template, and the other end of which is connected to the lower template; A plurality of fasteners are divided into two groups, one group passes through the guide column and is connected to the upper template, and the other group passes through the guide column and is connected to the lower template.

6. The rail flash removal device according to claim 5, characterized in that: The guide column comprises: Column; Positioning surfaces are arranged at two ends of the column; A guide surface, arranged at an end of the positioning surface away from the column; A guide post groove is provided between the positioning surface and the guide surface; The fastener comprises: A threaded section, wherein the threaded section is screwed and fixed on the upper template or the lower template; The straight rod section is connected to the threaded section and is adapted to be disposed in the guide post groove.

7. The rail flash removal device according to any one of claims 1 to 3, characterized in that: The trimming die comprises: A rail head trimming die is connected to the upper die plate and is arranged on one side of the upper die plate; A rail bottom trimming die, connected to the upper die plate and arranged on the other side of the upper die plate; A cutting edge is connected to the rail head trimming die and the rail bottom trimming die.

8. The rail flash removal device according to claim 7, characterized in that: The cutting edge comprises a plurality of segmented cutting edges, and the segmented cutting edges are connected to the rail head trimming die and the rail bottom trimming die through screws.

9. The rail flash removal device according to any one of claims 1 to 3, characterized in that: Also includes: A press, the press comprising a workbench and a slide; Wherein, the upper mold plate and the lower mold assembly are provided with connecting parts, the upper mold plate is connected to the slider through the connecting parts, and the lower mold assembly is connected to the workbench through the connecting parts.

10. The rail flash removal device according to any one of claims 1 to 3, characterized in that: Also includes: The oil groove is provided on the upper die fixing rod and / or the upper die, and is located between the upper die fixing rod and the upper die.

Images