A rail web pre-welding grinder

Abstract

The utility model discloses a kind of steel rail rail waist before welding polisher, including fixing frame and angle grinder, it is characterized by: slide is equipped in the one end of fixing frame, slide is arranged on the upper surface of steel rail to be polished along horizontal direction;Sliding plate is slidably installed on slide, there is a stand column fixed on sliding plate, mounting plate frame is supported on stand column by support sleeve, and mounting plate frame is rotationally cooperated with stand column;The angle grinder is fixed in the notch of the lower end of mounting plate frame, there is grinding wheel shaft coaxially connected in the output end of angle grinder, and there is polishing grinding wheel fixed in the lower end of grinding wheel shaft.Achieved effects are: shorten processing time, polishing speed is fast, quality is good, can improve the welding quality of steel rail, reduce labor intensity, small in size, convenient to operate, without damaging matrix material.

Description

Technical Field

[0001] This utility model relates to railway machinery, and more particularly to a rail web grinding machine before welding. Background Technology

[0002] Currently, to increase conductivity during the welding of 43-75 grade rails, it is usually necessary to grind both sides of the rail web before welding. For ease of operation, most domestic manufacturers still use manual grinding. This manual grinding method is not only slow, labor-intensive, and environmentally polluting, but also lacks quality assurance. Often, areas that should be ground are not ground, while areas that shouldn't be ground are under-ground. Furthermore, the grinding marks are messy and disorderly, resulting in a poor appearance and negatively impacting the export of the rails. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a rail web pre-welding grinding machine that has fast grinding speed, good grinding quality, and can reduce labor intensity.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A rail web pre-welding grinding machine includes a fixed frame and an angle grinder. Its key feature is that a slide rail is provided at one end of the fixed frame, arranged horizontally on the rail to be ground. A sliding plate is slidably mounted on the slide rail via a slider. A column is fixed on the sliding plate, and a mounting frame is supported on the column by a support sleeve. The mounting frame rotatably engages with the column. The angle grinder is fixed in a slot at the lower end of the mounting frame. A grinding wheel shaft is coaxially connected to the output end of the angle grinder, and a grinding wheel is fixed at the lower end of the grinding wheel shaft.

[0006] As a further preferred option, two mounting holes are symmetrically provided on the mounting plate frame, and the angle grinder is fitted onto the column through one of the mounting holes with a clearance fit, so as to change the installation position of the angle grinder relative to the rail, thereby grinding both sides of the rail web.

[0007] As a further preferred option, two arc-shaped positioning holes are symmetrically provided on the mounting plate frame, and a long screw is fixed on the sliding plate. The long screw passes through one of the corresponding positioning holes to facilitate the feed limit of the angle grinder.

[0008] As a further preferred embodiment, the fixing frame is a welded assembly and is fixed to the rail head of the rail with screws.

[0009] As a further preferred embodiment, a slide base plate is fixed at one end of the fixing frame, and two clamping plates are symmetrically arranged on the slide base plate at the end away from the fixing frame. The slide base plate is clamped to the rail head of the rail by the two clamping plates and fixed by the set screw; the slide is fixed on the slide base plate.

[0010] As a further preferred embodiment, the axial length of the outer edge of the grinding wheel matches the size of the rail web to be ground.

[0011] The beneficial effects of this utility model are:

[0012] By pushing the mounting plate frame to slide back and forth on the slide rail, the grinding wheel driven by the angle grinder can be driven to slide back and forth along the rail web surface to achieve pre-welding grinding of the rail web; by rotating the mounting plate frame around the column as the axis, the grinding wheel can be fed; the processing time is shortened, the grinding speed is fast and the quality is good, which can improve the welding quality of the rail, reduce labor intensity, and is small in size, easy to operate, and does not damage the base material. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model.

[0014] Figure 2 yes Figure 1 Top view.

[0015] Figure 3 yes Figure 2 The left view.

[0016] Figure 4 This is a perspective view of the present invention.

[0017] In the diagram: 1. Eye bolt; 2. Fixing bracket; 3. Angle grinder; 4. Mounting plate bracket; 5. Long screw; 6. Sliding plate; 7. Slide rail; 8. Clamping plate; 9. Slide rail base plate; 10. Slider; 11. Grinding wheel; 12. Grinding wheel shaft; 13. Rail; 14. Column; 15. Support sleeve. Detailed Implementation

[0018] The embodiments of this patent are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this patent, and should not be construed as limiting this patent.

[0019] like Figures 1-4 As shown, this utility model relates to a rail web pre-welding grinding machine, including a fixed frame 2 and an angle grinder 3. The fixed frame 2 is a welded component and can be fastened to the rail head by eye bolts 1. A slide rail 7 is connected to one end of the fixed frame 2, and the slide rail 7 is arranged horizontally on the rail to be ground. Two sliders 10 are slidably installed on the slide rail 7, and sliding plates 6 are fixedly installed on the two sliders 10. A column 14 is fixedly installed vertically on the sliding plate 6, and a support sleeve 15 is fitted on the column 14 and fixed by a set screw.

[0020] A mounting bracket 4 is fitted onto the column 14 and supported by a support sleeve 15. The mounting bracket 4 is rotatably fitted with the column 14. The angle grinder 3 is inserted into and fixed in the slot at the lower end of the mounting bracket 4 with screws. A grinding wheel shaft 12 is coaxially connected to the output end of the angle grinder 3 via a thread. A grinding wheel 11 is fitted onto the lower end of the grinding wheel shaft 12. The grinding wheel 11 is fixed to the grinding wheel shaft 12 by a cap threaded into the lower end hole of the grinding wheel shaft 12. The axial length of the outer edge of the grinding wheel 11 matches the web dimension of the rail 13 to be ground.

[0021] Two mounting holes 401 are symmetrically provided on the mounting plate frame 4, and the angle grinder 3 is fitted onto the column 14 through one of the mounting holes with a clearance fit, so as to change the installation position of the angle grinder 3 relative to the rail, thereby grinding both sides of the rail web.

[0022] Two arc-shaped positioning holes 402 are symmetrically provided on the mounting plate frame 4. A long screw 5 is fixed on the sliding plate 6. The long screw 5 passes through one of the corresponding positioning holes 402. By installing positioning bolts (not shown in the figure) through the positioning holes, the feed limit of the angle grinder 3 can be realized, and the working stability during reciprocating grinding can be improved.

[0023] A slide base plate 9 is fixed at one end of the fixed frame 2. Two clamping plates 8 are symmetrically welded to the slide base plate 9 at the end away from the fixed frame 2. The slide base plate 9 is clamped to the rail head of the rail by the two clamping plates 8 and fixed by the set screw. The slide 7 is fixed to the slide base plate 9 by screws.

[0024] During operation, the grinder is secured to the rail head of the rail to be ground via the fixing bracket 2 and tightened with eye bolts. Simultaneously, the slide base plate is clamped to the rail head via two clamping plates and secured with set screws. The height of the support sleeve on the column 14 is adjusted according to the specifications of the rail to be ground and secured with set screws, ensuring the grinding wheel 11 faces the rail web. Then, the angle grinder 3 is started, driving the grinding wheel 11 to rotate at high speed via the grinding wheel shaft 12. By pushing the mounting plate 4 to slide back and forth on the slide rail 7 following the sliding plate 6, the grinding wheel 11 driven by the angle grinder 3 can slide back and forth along the rail web surface, achieving pre-welding grinding of the rail web. During grinding, the grinding wheel 11 is fed by rotating the mounting plate 4 around the column 14 as an axis.

[0025] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A rail web pre-welding grinding machine, comprising a fixed frame and an angle grinder, characterized in that: A slide rail is provided at one end of the fixed frame, and the slide rail is arranged horizontally on the steel rail to be ground; a sliding plate is slidably installed on the slide rail by a slider, and a column is fixed on the sliding plate. A mounting plate frame is supported on the column by a support sleeve, and the mounting plate frame is rotatably engaged with the column; the angle grinder is fixed in the groove at the lower end of the mounting plate frame, and a grinding wheel shaft is coaxially connected to the output end of the angle grinder, and a grinding wheel is fixed at the lower end of the grinding wheel shaft.

2. The rail web grinding machine according to claim 1, characterized in that: Two mounting holes are symmetrically provided on the mounting plate frame, and the angle grinder is fitted onto the column through one of the mounting holes with a gap fit, so as to change the installation position of the angle grinder relative to the rail, thereby grinding both sides of the rail web.

3. The rail web pre-welding grinding machine according to claim 2, characterized in that: Two arc-shaped positioning holes are symmetrically provided on the mounting plate frame. A long screw is fixed on the sliding plate, and the long screw passes through the corresponding positioning hole to facilitate the feed limit of the angle grinder.

4. A rail web pre-welding grinding machine according to claim 1, characterized in that: The fixing frame is a welded assembly and is fixed to the rail head of the rail with screws.

5. A rail web grinding machine before welding according to claim 1 or 4, characterized in that: in A slide base plate is fixed to one end of the fixed frame. Two clamping plates are symmetrically arranged on the slide base plate away from the fixed frame. The slide base plate is clamped to the rail head of the rail by the two clamping plates and fixed by the set screw. The slide is fixed on the slide base plate.

6. A rail web pre-welding grinding machine according to claim 1, characterized in that: The outer axial length of the grinding wheel is matched with the web dimension of the rail to be ground.

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