Steel rail clamping device

Abstract

The utility model relates to the technical field of rail machining, and particularly discloses a steel rail clamping device. Comprising a machining table, a portal frame erected at the top of the machining table, a vertical air cylinder arranged at the top of the portal frame, a connecting block connected to the end of a piston rod of the vertical air cylinder, a pressing block detachably connected with the bottom of the connecting block, a steel rail containing position arranged on the machining table and transverse clamping assemblies arranged on the two sides of the steel rail containing position. A vertical clamping space is formed between the steel rail containing position and the pressing block, and at least part of the surface of the steel rail containing position is provided with a first arc-shaped groove. According to the steel rail clamping device, the stability in the sawing process is improved, the situation that the perpendicularity is affected by head warping during sawing of the steel rail is prevented, meanwhile, the steel rail can be clamped in the forward direction and the reverse direction, and the steel rail clamping device adapts to different sawing machining scenes.

Description

Technical Field

[0001] The utility model relates to the technical field of track processing, in particular to a rail clamping device. Background Art

[0002] With the rapid development of the railway transportation industry, higher requirements are put forward for railway track equipment to adapt to high safety, high transport capacity and high density application conditions as soon as possible, and the requirements for the manufacturing precision of turnout products are getting higher and higher. During the process of laying and repairing rails, it is necessary to cut the rails according to the terrain conditions. The operator controls the position of the rail sawing and aligns it with the cutter disc to saw the rails of the required size.

[0003] Rail sawing requires clamping in both vertical and horizontal directions to prevent movement and jumping during sawing from affecting the sawing operation. In normal operation, the rail bottom is placed downward for clamping and sawing, but due to the height difference of the bottom surface of the rear end of the rolled rail, it is necessary to saw upside down to prevent the rail from tilting and affecting the verticality during sawing; due to the large difference in the structure of the two sawing tooling, it is cumbersome to replace, and there is also the situation of unstable clamping and deviation, which affects the final cutting of the rail. Utility Model Content

[0004] In view of the technical problems in the prior art, the utility model provides a rail clamping device to improve the stability during the sawing process and prevent the warping of the rail during sawing, which affects the verticality. At the same time, the rail can be clamped in both positive and negative directions to adapt to different sawing processing scenarios.

[0005] A rail clamping device comprises a processing table, a gantry mounted on the top of the processing table, a vertical cylinder arranged on the top of the gantry, a connecting block connected to the end of the piston rod of the vertical cylinder, a pressure block detachably connected to the bottom of the connecting block, a rail placement position arranged on the processing table, and transverse clamping components arranged on both sides of the rail placement position, wherein a vertical clamping space is formed between the rail placement position and the pressure block, and a first arc groove is at least partially opened on the surface of the rail placement position.

[0006] Furthermore, the transverse clamping assembly includes a first slide cylinder and a second slide cylinder installed on the processing table and arranged laterally opposite to each other, the piston rod end faces of the first slide cylinder and the second slide cylinder are provided with clamping blocks, the extension and retraction directions of the first slide cylinder and the second slide cylinder are perpendicular to the length direction of the rail, and a transverse clamping space is formed between the two clamping blocks.

[0007] Furthermore, first slide grooves are provided on two symmetrical side surfaces of the connecting block in the horizontal direction, a groove is provided in the middle of the pressing block, and first slide rails slidably connected to the first slide grooves are provided on two symmetrical inner walls in the groove of the pressing block.

[0008] Furthermore, a push-pull handle is installed on one side of the pressing block along the direction of the first sliding groove.

[0009] Furthermore, it also includes a pressing block limiting plate, the pressing block is provided with a second sliding groove on a side away from the push-pull handle, and a second sliding rail slidably connected to the second sliding groove is installed on the side wall of the pressing block limiting plate.

[0010] Furthermore, the bottom of the pressing block is flat.

[0011] Furthermore, a second arc-shaped groove is formed at the bottom of the pressing block.

[0012] Furthermore, the rail placement position is symmetrically provided with limit blocks along the length direction of the rail, and the distance between the two limit blocks is equal to the bottom width of the rail.

[0013] Compared with the prior art, the rail clamping device of the utility model has the following technical effects:

[0014] (1) The utility model provides a rail clamping device, which clamps the rail horizontally through a horizontal clamping assembly to prevent the rail from moving in the horizontal direction during sawing. The vertical cylinder presses down a pressure block, and the pressure block and the rail placement position clamp the rail in the vertical direction, thereby improving the stability during sawing and preventing the rail from tilting during sawing and affecting the verticality.

[0015] (2) The utility model provides a rail clamping device, which can adapt the shape of the pressure block to the top and bottom shapes of the rail by replacing pressure blocks of different shapes. The pressure block cooperates with the rail placement position to stably clamp the rail. At the same time, the rail can be clamped in both positive and negative directions to adapt to different sawing processing scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a structural schematic diagram of a rail clamping device of the utility model used in a forward sawing clamping state;

[0018] Figure 2 The utility model is a structural schematic diagram of a rail clamping device used in a reverse sawing clamping state.

[0019] Figure 3 This is a structural diagram of a rail clamping device and a connecting piece of the utility model.

[0020] Among them, 1. processing table; 2. gantry; 3. vertical cylinder; 4. connecting block; 5. pressure block; 6. rail placement position; 7. first arc groove; 8. first slide cylinder; 9. second slide cylinder; 10. clamping block; 11. first slide groove; 12. first slide rail; 13. push-pull handle; 14. second slide groove; 15. second slide rail; 16. second arc groove; 17. limit block; 18. pressure block limit plate. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the protection scope of the utility model.

[0022] like Figure 1 and Figure 3 A rail clamping device shown in the figure comprises a processing table 1, a gantry 2 erected on the top of the processing table 1, a vertical cylinder 3 arranged on the top of the gantry 2, a connecting block 4 connected to the end of the piston rod of the vertical cylinder 3, a pressing block 5 detachably connected to the bottom of the connecting block 4, a rail placement position 6 arranged on the processing table 1, and a transverse clamping assembly arranged on both sides of the rail placement position 6, a vertical clamping space is formed between the rail placement position 6 and the pressing block 5, and a first arc groove 7 is at least partially opened on the surface of the rail placement position 6; when it is necessary to saw the rail forward, the bottom surface of the rail is placed on the rail placement position 6, and the pressing block 5 with the second arc groove 16 is assembled to the connecting block 4, the second arc groove 16 is matched with the top surface of the rail, and the transverse clamping assembly clamps the rail For horizontal clamping, the vertical cylinder 3 is pressed down until the second arc groove 16 contacts the top surface of the rail, and the pressure block 5 cooperates with the rail placement position 6 to stably clamp the rail; when the rail needs to be sawed in the opposite direction, the pressure block 5 with a flat bottom surface is assembled to the connecting block 4, and the top surface of the rail is placed in the first arc groove 7 of the rail placement position 6, the first arc groove 7 matches the shape of the top surface of the rail, and the horizontal clamping assembly clamps the rail horizontally, and the vertical cylinder 3 is pressed down until the bottom surface of the pressure block 5 contacts the bottom surface of the rail, and the pressure block 5 cooperates with the rail placement position 6 to stably clamp the rail; the stability during the sawing process is improved to prevent the rail from tilting during sawing and affecting the verticality, and the rail can be clamped in both positive and negative directions to adapt to different sawing processing scenarios.

[0023] Specifically, Figure 1As shown, the transverse clamping assembly includes a first slide cylinder 8 and a second slide cylinder 9 which are installed on the processing table 1 and are arranged laterally opposite to each other. The piston rod end surfaces of the first slide cylinder 8 and the second slide cylinder 9 are provided with clamping blocks 10. The extension and retraction directions of the first slide cylinder 8 and the second slide cylinder 9 are perpendicular to the length direction of the rail, and a transverse clamping space is formed between the two clamping blocks 10. When the rail is placed, the first slide cylinder 8 and the second slide are started to push the two clamping blocks 10 closer to each other, thereby clamping the waist of the rail, further improving the clamping stability of the rail.

[0024] Specifically, Figure 3 As shown, the two symmetrical sides of the connecting block 4 are both provided with a first slide groove 11 in the horizontal direction, a groove is provided in the middle of the pressing block 5, and two symmetrical inner side walls in the groove of the pressing block 5 are provided with a first slide rail 12 slidably connected to the first slide groove 11; the pressing block 5 is provided with a push-pull handle 13 on one side in the direction of the first slide groove 11; and the pressing block 5 also includes a limit plate, the pressing block 5 is provided with a second slide groove 14 on the side away from the push-pull handle 13, and the side wall of the limit plate of the pressing block 5 is provided with a second slide rail 15 slidably connected to the second slide groove 14 ; When installing the pressing block 5, by holding the push-pull handle 13, align the first slide rail 12 on the pressing block 5 with the first slide groove 11, push the push-pull handle 13, install the pressing block 5 and the connecting block 4, and after installation in place, insert the second slide rail 15 of the limit plate of the pressing block 5 into the second slide groove 14, so that the pressing block 5 and the connecting piece are tightly installed, thereby preventing the pressing block 5 from detaching from the connecting block 4 when the cylinder is pressed vertically or clamped in the vertical direction; the push-pull handle 13 is used to facilitate the disassembly and installation of the pressing block 5 and improve the installation and disassembly efficiency.

[0025] Specifically, Figure 2 As shown, the bottom of the pressing block 5 is flat. When the rail needs to be sawed in the reverse direction, the pressing block 5 with a flat bottom surface is replaced so that the pressing block 5 contacts the two flat surfaces at the bottom of the rail.

[0026] Specifically, Figure 1 As shown, a second arc groove 16 is provided at the bottom of the pressing block 5. When the rail needs to be sawed forward, the pressing block 5 with the second arc groove 16 is replaced. The second arc groove 16 matches the top shape of the rail, so that the rail is clamped more firmly.

[0027] Specifically, Figure 1 As shown, the rail placement position 6 is symmetrically provided with limit blocks 17 along the length direction of the rail, wherein the spacing between the two limit blocks 17 is equal to the bottom width of the rail. When the rail needs to be sawed in the forward direction, the rail is placed between the two limit blocks 17. At this time, the bottom surface of the rail just fills the space between the two limit grooves, which is convenient for the placement of the rail.

[0028] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0029] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein.

[0030] The present invention is further described above with the aid of specific embodiments. However, it should be understood that the specific description here should not be construed as limiting the essence and scope of the present invention. Various modifications made to the above embodiments by ordinary technicians in the field after reading this specification are all within the scope of protection of the present invention.

Claims

1. A rail clamping device, characterized in that: It includes a processing table, a gantry mounted on the top of the processing table, a vertical cylinder arranged on the top of the gantry, a connecting block connected to the end of the piston rod of the vertical cylinder, a pressing block detachably connected to the bottom of the connecting block, a rail placement position arranged on the processing table, and transverse clamping components arranged on both sides of the rail placement position, a vertical clamping space is formed between the rail placement position and the pressing block, and a first arc groove is at least partially opened on the surface of the rail placement position.

2. A rail clamping device according to claim 1, characterized in that: The transverse clamping assembly includes a first slide cylinder and a second slide cylinder installed on the processing table and arranged laterally opposite to each other. The piston rod end surfaces of the first slide cylinder and the second slide cylinder are provided with clamping blocks. The extension and retraction directions of the first slide cylinder and the second slide cylinder are perpendicular to the length direction of the rail, and a transverse clamping space is formed between the two clamping blocks.

3. A rail clamping device according to claim 1, characterized in that: The two symmetrical side surfaces of the connection block are both provided with first slide grooves in the horizontal direction, the middle of the pressing block is provided with a groove, and the two symmetrical inner side walls in the groove of the pressing block are provided with first slide rails slidably connected with the first slide grooves.

4. A rail clamping device according to claim 3, characterized in that: A push-pull handle is installed on one side of the pressing block along the direction of the first sliding groove.

5. A rail clamping device according to claim 4, characterized in that: It also includes a pressing block limiting plate, the pressing block is provided with a second sliding groove on a side away from the push-pull handle, and a second sliding rail slidably connected to the second sliding groove is installed on the side wall of the pressing block limiting plate.

6. A rail clamping device according to claim 1, characterized in that: The bottom of the pressing block is flat.

7. A rail clamping device according to claim 1, characterized in that: A second arc-shaped groove is formed at the bottom of the pressing block.

8. A rail clamping device according to claim 1, characterized in that: The rail placement position is symmetrically provided with limit blocks along the length direction of the rail, and the distance between the two limit blocks is equal to the bottom width of the rail.

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