Electromagnetic chuck rail loading device

Abstract

The utility model provides a kind of electromagnetic chuck steel rail feeding device, multiple electromagnetic chucks are arranged along the length direction of workbench, the electromagnetic chuck has the open slot towards one side, comprising: material supporting component, multiple material supporting components are arranged between two electromagnetic chucks, each material supporting component has liftable material supporting roller, to lift the steel rail on it;And feeding component, it is arranged in the open side of the open slot, multiple feeding components are arranged along the length direction of workbench with interval, each feeding component has push rod arranged perpendicularly with the electromagnetic chuck, to lift the steel rail on the material supporting roller into the open slot, and cooperate with the sidewall of electromagnetic chuck to tightly lift the steel rail.The electromagnetic chuck steel rail feeding device of the utility model lifts the steel rail using material supporting component, then tightly lifts the steel rail using feeding component to fix the steel rail into the open slot of electromagnetic chuck, simple operation, convenient to use.

Description

Technical Field

[0001] This utility model relates to the technical field of auxiliary equipment for rail milling, specifically to an electromagnetic chuck rail feeding device. Background Technology

[0002] To ensure the geometric profile of the rail head and improve its operational safety and service life, the rail head needs to be milled. To guarantee machining accuracy, fixtures are required to clamp and secure the rail to be machined. Current rail milling machines typically use two types of fixtures: one is a mechanical clamping fixture, which requires numerous clamping plates and bolts to be removed and installed each time the rail is loaded and unloaded, making it inconvenient, labor-intensive, and time-consuming. The other type uses an electromagnetic chuck at the bottom in conjunction with the side wall of the machine tool platform for clamping. While this method facilitates rail clamping, the clamping force is insufficient relying solely on the electromagnetic chuck at the bottom of the rail and the side wall for fixation. During heavy milling or when machining the rail head near the side wall of the machine tool, significant vibration occurs, which is detrimental to the machining accuracy of the rail. To improve the stability and ensure the accuracy of rail head milling, an electromagnetic chuck is proposed. This electromagnetic chuck is an irregularly shaped magnetic block with an open slot. The groove's adsorption property is used to fix the rail base and rail web, ensuring the stability of the fixation. How to feed the rail into the electromagnetic chuck is an urgent problem to be solved. Utility Model Content

[0003] The purpose of this utility model is to provide an electromagnetic chuck rail feeding device to feed the rail into the electromagnetic chuck so that the electromagnetic chuck can fix the rail.

[0004] To achieve the above objectives, this utility model provides an electromagnetic chuck rail feeding device. Multiple electromagnetic chucks are arranged along the length of a worktable. Each electromagnetic chuck has an opening slot facing one side. The device includes: a material support assembly, with multiple material support assemblies disposed between two electromagnetic chucks, each material support assembly having a liftable material support roller to lift the rail on it; and a feeding assembly, disposed on one side of the opening slot. Multiple feeding assemblies are spaced apart along the length of the worktable, each feeding assembly having a push rod arranged perpendicular to the electromagnetic chuck to push the rail on the material support roller into the opening slot and engage with the side wall of the electromagnetic chuck to press the rail tightly against it. One end of the material support roller is located between two electromagnetic chucks, and the other end extends towards the feeding assembly and out of the electromagnetic chuck.

[0005] Furthermore, the material support assembly includes: a mounting plate, which is fixedly mounted on the worktable;

[0006] An ejector cylinder is arranged vertically, with its cylinder body bottom fixedly mounted on a mounting plate; a bracket is fixedly connected to the piston rod of the ejector cylinder; and a material support roller is mounted on the bracket; wherein the bracket is in the shape of an inverted gate, and the material support roller is mounted on the bracket via roller shafts at both ends.

[0007] Furthermore, at least two of the ejector cylinders are disposed at the bottom of the bracket, and the two ejector cylinders are arranged symmetrically.

[0008] Furthermore, the feeding assembly includes: a top material cylinder, arranged horizontally; and a fixed frame, fixedly installed on the workbench. The cylinder body of the top material cylinder is installed on the top of the fixed frame. During operation, one end of the piston rod of the top material cylinder presses against the web of the rail to tighten the rail.

[0009] Furthermore, a pressure block is installed at one end of the piston rod of the top material cylinder.

[0010] Furthermore, the top material cylinder is a two-stage hydraulic cylinder.

[0011] Furthermore, the sidewall above the opening slot and the lower sidewall of the opening slot of the electromagnetic chuck are both magnetic, so that the rail is attracted and fixed after being energized.

[0012] Furthermore, a protective plate is provided on the electromagnetic chuck.

[0013] Compared with the prior art, the present invention has the following technical effects:

[0014] This utility model's electromagnetic chuck rail loading device utilizes a material support assembly to lift the rail, and then a loading assembly to tighten the rail, thus fixing it into the opening slot of the electromagnetic chuck. It is simple to operate and convenient to use. The material support assembly uses a material support roller and an ejector cylinder, while the ejector assembly uses an ejector cylinder, resulting in a simple and reasonable structure that is easy to manufacture and implement. During operation, the electromagnetic chuck's suction force stably fixes the rail, meeting the requirements for heavy-duty rail milling. Attached Figure Description

[0015] The accompanying drawings, which form part of this specification and serve to further illustrate the preferred embodiments of the present invention, and together with the specification, serve to explain the principles of the present invention. In the drawings:

[0016] Figure 1 This is a schematic diagram of the main structure of the electromagnetic chuck rail feeding device of this utility model;

[0017] Figure 2 This is a top view schematic diagram of the electromagnetic chuck rail feeding device of this utility model;

[0018] Figure 3This is a schematic diagram of the feeding component of the electromagnetic chuck rail feeding device of this utility model;

[0019] Figure 4 This is a schematic diagram of the material support component of the electromagnetic chuck rail feeding device of this utility model.

[0020] The labels in the diagram represent the following: 1. Workbench, 2. Electromagnetic chuck, 3. Feeding assembly, 4. Material support assembly; among them, 201. Opening slot, 301. Top material cylinder, 302. Fixed frame, 303. Pressing block, 304. Detailed Implementation

[0021] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings. However, the present invention can be implemented in many different ways as defined and covered by the claims.

[0022] The following is a reference to the appendix. Figures 1 to 4 Detailed description of the preferred embodiments of this utility model:

[0023] Example: Figure 1 and 2 As shown, this embodiment provides an electromagnetic chuck rail feeding assembly 3. Multiple electromagnetic chucks 2 are arranged along the length of a worktable 1. The worktable described in this invention is the worktable of a gantry milling machine. Each electromagnetic chuck 2 has an opening slot 201 facing one side. In use, the bottom of the rail is located within the opening slot 201. This embodiment's electromagnetic chuck rail feeding assembly 3 includes a material support assembly 4 and a feeding assembly 3. Multiple material support assemblies 4 are disposed between two electromagnetic chucks 2. The material support assembly 4 can be disposed between every two adjacent electromagnetic chucks 2, or it can be disposed in a manner similar to... Figure 2 As shown, a material support component 4 is provided between the first and adjacent electromagnetic chucks 2 and between the last and adjacent electromagnetic chucks 2. Material support components 4 are provided between every remaining three electromagnetic chucks 1 or two electromagnetic chucks. The specific intervals are set according to actual needs and are not specifically limited here; the purpose is simply to provide stable support for the rail and to lift the rail. Figure 4 As shown, each of the material support components 4 has a liftable material support roller 401 to lift the rail 5 on it.

[0024] The feeding assembly 3 is located on one side of the opening of the slot 201. Multiple feeding assemblies 3 are arranged at intervals along the length of the workbench 1. Each feeding assembly 3 has a push rod arranged perpendicular to the electromagnetic chuck 2 to push the rail 5 on the support roller 401 into the slot 201 and cooperate with the side wall of the electromagnetic chuck 2 to press the rail 5 tightly. One end of the support roller 401 is located between two electromagnetic chucks 2, and the other end extends towards the feeding assembly 3 and protrudes from the electromagnetic chuck 2. That is, one end of the support roller 401 protrudes from the electromagnetic chuck 2, so that the rail 5 can be placed on the support roller 401.

[0025] See Figure 4 In this embodiment, the material support assembly 4 includes a material support roller 401, a mounting plate 405, an ejector cylinder 404, and a bracket 402. The mounting plate 405 is fixedly mounted on the workbench 1. The ejector cylinder 404 is arranged vertically, and the bottom of the cylinder body of the ejector cylinder 404 is fixedly mounted on the mounting plate 405. The bracket 402 is fixedly connected to the piston rod of the ejector cylinder 404, and the material support roller 401 is mounted on the bracket 402. The bracket 402 is inverted gate-shaped, and the material support roller 401 is mounted on the bracket 402 through roller shafts at both ends. At least two ejector cylinders 404 are disposed at the bottom of the bracket 402, and the two ejector cylinders 404 are symmetrically arranged. In this embodiment, the ejector cylinders 404 are hydraulic cylinders, and three hydraulic cylinders are disposed above the bracket 402. In other embodiments of this utility model, a sliding bearing or a sliding sleeve is provided between the material support roller 401 and the material support roller shaft to facilitate tightening of the rail 5.

[0026] In this embodiment, as Figure 3 As shown, the feeding assembly 3 includes a top-loading cylinder 301 and a fixed frame 302. The top-loading cylinder 301 is horizontally arranged, and the bottom end of the fixed frame 302 is fixedly installed on the workbench 1. The cylinder body of the top-loading cylinder 301 is installed on the top of the fixed frame 302. During operation, one end of the piston rod of the top-loading cylinder 301 presses against the web of the rail 5 to tighten the rail 5. Specifically, the piston rod presses against the lower part of the rail web. In this embodiment, the piston rod of the top-loading cylinder 301 is a push rod. A pressure block 304 is installed at one end of the piston rod of the top-loading cylinder 301. The pressure block 304 presses against the web of the rail 5 under the action of the piston rod. The top-loading cylinder 301 is a two-stage hydraulic cylinder.

[0027] In this embodiment, the upper sidewall and the lower sidewall of the opening slot 201 of the electromagnetic chuck 2 are both magnetic, so that the rail 5 is attracted and fixed after being energized. A protective plate 6 is provided on the electromagnetic chuck 2.

[0028] When using the electromagnetic chuck rail feeding device of this embodiment, the rail 5 is hoisted onto the unloading roller 401. Under the action of the ejector cylinder 404, the rail 5 is pushed into place, that is, the highest point of the support roller is flush with or higher than the lower side wall of the opening groove 201 of the electromagnetic chuck 2. The ejector cylinder 301 is used to press the rail 5 tightly, so that the bottom of the rail 5 enters the opening groove 201 and the rail web is tightly attached to the side wall of the electromagnetic chuck 2, thus solving the problem of feeding using an electromagnetic chuck with an opening groove. After the material is loaded, the power is turned on, which causes the side wall of the electromagnetic chuck 2 and the lower side wall of the opening slot 201 to generate suction force, adsorbing and fixing the rail 5. The bottom suction and side suction combination ensures the fixing requirements of the rail 5. At the same time, the piston rod of the top cylinder 301 presses against the other side of the rail, providing reliable fixing of the rail to meet the requirements of heavy milling of the rail, ensuring processing accuracy. Moreover, the entire processing only requires one movement, avoiding the need to tighten many points in mechanical clamping methods, which can reduce clamping time, reduce labor intensity, and improve processing efficiency.

[0029] In this embodiment, multiple electromagnetic chucks 2 are disposed on one side of the workbench 1, and the multiple electromagnetic chucks 2 are located on the same straight line. In an embodiment of this utility model (not shown in the figure), battery chucks can be disposed on both sides of the workbench 1. Similarly, corresponding feeding components and material support components also need to be arranged to arrange two sets of electromagnetic chucks and two sets of electromagnetic chuck rail feeding devices of this utility model on the workbench 1. This embodiment of the structure clamps two rails on the workbench, improving the rail processing efficiency.

[0030] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An electromagnetic chuck rail feeding device, comprising multiple electromagnetic chucks arranged along the length of a worktable, each electromagnetic chuck having an opening slot facing one side, characterized in that... include: Material support assembly, a plurality of said material support assemblies are disposed between two said electromagnetic chucks, each of said material support assembly having a liftable material support roller to lift the rail on it; and A feeding assembly is disposed on one side of the opening of the slot. Multiple feeding assemblies are arranged at intervals along the length of the worktable. Each feeding assembly has a push rod arranged perpendicular to the electromagnetic chuck to push the steel rail on the material support roller into the opening slot and engage with the side wall of the electromagnetic chuck to press the steel rail firmly against it. One end of the material support roller is located between two electromagnetic chucks, and the other end extends toward the feeding assembly and out of the electromagnetic chucks.

2. The electromagnetic chuck rail feeding device according to claim 1, characterized in that, The material support assembly includes: The mounting plate is fixedly installed on the workbench; The ejector cylinder is arranged vertically, and the bottom of the ejector cylinder body is fixedly mounted on the mounting plate; The bracket is fixedly connected to the piston rod of the ejector cylinder; and The material support roller is mounted on the bracket; wherein, The bracket is in the shape of an inverted gate, and the material support roller is mounted on the bracket via roller shafts at both ends.

3. The electromagnetic chuck rail feeding device according to claim 2, characterized in that, At least two ejector cylinders are disposed at the bottom of the bracket, and the two ejector cylinders are arranged symmetrically.

4. The electromagnetic chuck rail feeding device according to claim 1, characterized in that, The feeding assembly includes: Top material cylinder, horizontally arranged; A fixed frame is fixedly installed on the workbench. The cylinder body of the top material cylinder is installed on the top of the fixed frame. During operation, one end of the piston rod of the top material cylinder presses against the web of the rail to tighten the rail.

5. The electromagnetic chuck rail feeding device according to claim 4, characterized in that, A pressure block is installed at one end of the piston rod of the top material cylinder.

6. The electromagnetic chuck rail feeding device according to claim 5, characterized in that, The aforementioned top-loading cylinder is a two-stage hydraulic cylinder.

7. The electromagnetic chuck rail feeding device according to claim 1, characterized in that, The side wall above the opening slot and the lower side wall of the opening slot of the electromagnetic chuck are both magnetic, so that the rail is attracted and fixed after being energized.

8. The electromagnetic chuck rail feeding device according to any one of claims 1 to 7, characterized in that, A protective plate is provided on the electromagnetic chuck.

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