A full-face weld grinding machine

Abstract

The application discloses a kind of full-face weld polishing machine, it is related to railway engineering machinery technical field, it includes pedestal, and still includes guide mechanism, rail top processing unit, rail waist processing unit and rail bottom processing unit;Pedestal includes fixed frame, and the both ends of fixed frame are respectively provided with clamp for clamping steel rail;Guide mechanism includes guide frame seat, oil cylinder and connecting plate;The front surface of guide frame seat is slidably provided with connecting seat along axial direction;The cylinder body of oil cylinder is fixedly arranged at one end of guide frame seat, and the piston rod of oil cylinder is connected with connecting seat;The back surface of connecting plate is fixedly connected with connecting seat, and the front surface of connecting plate can be alternatively connected in rail top processing unit, rail waist processing unit and rail bottom processing unit.The present application can overcome the technical defects that the existing machine rail waist and rail bottom position polishing is difficult, cannot achieve full-face polishing and operation efficiency is low, labor intensity is big, and operation safety risk is higher.

Description

Technical Field

[0001] This invention relates to the field of railway engineering machinery technology, specifically a full-section weld grinding tool. Background Technology

[0002] In railways, seamless rail connections are primarily achieved using flash welding, gas pressure welding, or aluminothermic welding. After welding, the weld joints require grinding to smooth the rails. Currently, on-site post-weld grinding is mainly done manually using small tools. For example, domestically used grinding tools include the NMG-4 rail profile grinding machine and its derivatives, while internationally, the French GISMA MP-12 mobile grinding machine is a common choice. However, these small tools suffer from drawbacks such as high operator workload, low efficiency, difficulty in grinding the rail web and base, inability to perform full-section grinding, and the grinding quality depending entirely on the operator's skill and experience. They place high demands on operators and have inherent limitations. Furthermore, the operation is inherently dangerous and detrimental to operator safety.

[0003] Therefore, it is urgent to develop a full-section rail grinding machine that is highly automated, capable of grinding the entire rail surface, lightweight, easy to operate, requires fewer operators, is safe and reliable, produces better quality, is more efficient, and can reduce the number of operators. Summary of the Invention

[0004] In view of the deficiencies in the existing technology, the purpose of this invention is to provide a full-section weld grinding tool that can overcome the problems existing in the current post-weld grinding operation of railway rails.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows: a full-section weld grinding machine, including a base, a guide mechanism, a rail top processing unit, a rail web processing unit, and a rail bottom processing unit; the base includes a fixed frame, and clamps for holding rails are respectively provided at both ends of the fixed frame; the guide mechanism includes a guide frame seat, a hydraulic cylinder, and a connecting plate; a connecting seat is slidably provided on the front side of the guide frame seat along the axial direction; the cylinder body of the hydraulic cylinder is fixedly provided at one end of the guide frame seat, and the piston rod of the hydraulic cylinder is connected to the connecting seat; the back side of the connecting plate is fixedly connected to the connecting seat, and the front side of the connecting plate can be selectively connected to one of the rail top processing unit, the rail web processing unit, and the rail bottom processing unit.

[0006] Based on the above technical solution, the two ends of the fixed frame are respectively connected to the clamp through connecting blocks, and the fixed frame is provided with connecting holes for connecting the guide mechanism and several weight reduction holes.

[0007] Based on the above technical solution, the lower end of the fixture is provided with a fixed chuck and a movable chuck, and the movable chuck is provided with an adjusting pin.

[0008] Based on the above technical solution, a bearing seat is provided at one end of the guide frame seat, and the oil cylinder is connected to the bearing seat through a flange.

[0009] Based on the above technical solution, a guide rail is provided on the front side of the guide frame seat along the axial direction, and a sliding block for connecting the connecting plate is slidably arranged on the guide rail.

[0010] Based on the above technical solution, the rail top processing unit includes a rail top frame, the upper end of which is connected to a connecting plate; a rail top cutter is provided on the front of the rail top frame, the rail top cutter is a contour cutter, the outline of the rail top cutter corresponds to the outline of the rail top, and a first disc is provided at the root of the rail top cutter; a first motor for driving the rotation of the rail top cutter is provided on the back of the rail top frame; first positioning wheels adapted to the rail web are respectively provided on both sides of the rail top frame; a first horizontal plate is provided above the first positioning wheels, one end of the first horizontal plate is connected to the rail top frame, and a second positioning wheel adapted to the rail top is provided at the other end of the first horizontal plate.

[0011] Based on the above technical solution, the rail web processing unit includes a rail web frame, a rail web cutter, and a second motor; the rail web frame includes a connected vertical plate and a second horizontal plate; the lower center of the vertical plate is provided with a clearance notch adapted to the rail web cutter; the rail web cutter is a contour cutter, and the contour of the rail web cutter corresponds to the contour of the rail web; the proximal end of the second horizontal plate extends to the clearance notch, and the proximal end of the second horizontal plate is provided with a driven wheel, and the distal end of the second horizontal plate is provided with a drive wheel, and a transmission belt is arranged between the drive wheel and the driven wheel; the second motor is located at the distal end of the second horizontal plate, and the drive shaft of the second motor is connected to the drive wheel; the rail web cutter is located at the proximal end of the second horizontal plate, and the rail web cutter is connected to the driven wheel through a connecting shaft.

[0012] Based on the above technical solution, the lower ends of the vertical plate are respectively provided with third positioning wheels that are adapted to the web of the rail; the lower ends of the vertical plate are each provided with an upper guide wheel that is adapted to the top of the rail and a lower guide wheel that is adapted to the bottom of the rail.

[0013] Based on the above technical solution, the rail base processing unit includes a rail base frame, with an extension plate for connecting a connecting plate at the upper end of the rail base frame; a rail base cutter is provided on the front of the rail base frame, which is a contour cutter, the outline of which corresponds to the outline of the rail base, and a second disc is provided at the root of the rail base cutter; a third motor for driving the rotation of the rail base cutter is provided on the back of the rail base frame; fourth positioning wheels adapted to the rail web are respectively provided at the upper two ends of the rail base frame; third horizontal plates are respectively provided at the lower two ends of the rail base frame, and fifth positioning wheels adapted to the rail base are provided at the ends of the third horizontal plates.

[0014] Based on the above technical solution, it also includes an electrical control system and a hydraulic station; the electrical control system is used to control the tool rotation speed and grinding parameters; the hydraulic station is used to provide a power source for the machine.

[0015] The beneficial effects of this invention are as follows:

[0016] In post-weld grinding operations on rails, this full-section weld grinding machine utilizes a combination of multiple contour-following cutters to achieve full-section grinding of the weld. The operation replaces grinding with milling, achieving one-time milling shaping, resulting in high efficiency, no dust, and environmental friendliness. The machine features a modular design, allowing it to be disassembled into a portable, independent transport unit for easy transport. Motor-driven operation replaces traditional manual hand-held grinding, reducing labor intensity. It can be operated by a single person with low requirements for operator experience. This invention overcomes the technical shortcomings of existing machines, such as difficulty in grinding the rail web and rail base, inability to achieve full-section grinding, low efficiency, high labor intensity, and high safety risks. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the full-section weld grinding tool in Embodiment 1 of the present invention;

[0018] Figure 2 for Figure 1 A schematic diagram of the structure after removing the top rail machining unit;

[0019] Figure 3 This is a schematic diagram of the base structure in Embodiment 1 of the present invention;

[0020] Figure 4 This is a schematic diagram of the guiding mechanism in Embodiment 1 of the present invention;

[0021] Figure 5 This is a schematic diagram of the rail top processing unit in Embodiment 1 of the present invention;

[0022] Figure 6 This is a schematic diagram of the working principle of the rail top processing unit in Embodiment 1 of the present invention;

[0023] Figure 7 This is a schematic diagram of the full-section weld grinding tool in Embodiment 2 of the present invention;

[0024] Figure 8 This is a schematic diagram of the rail waist processing unit in Embodiment 2 of the present invention;

[0025] Figure 9 This is a schematic diagram of the working principle of the rail waist processing unit in Embodiment 2 of the present invention;

[0026] Figure 10 This is a schematic diagram of the full-section weld grinding tool in Embodiment 3 of the present invention;

[0027] Figure 11 This is a schematic diagram of the rail bottom processing unit in Embodiment 3 of the present invention;

[0028] Figure 12 This is a schematic diagram of the working principle of the rail bottom processing unit in Embodiment 3 of the present invention.

[0029] Figure label:

[0030] 1-Rail; 11-Rail top; 12-Rail web; 13-Rail bottom;

[0031] 2-Base; 201-Fixed frame; 202-Clamp; 203-Connecting block; 204-Connecting hole; 205-Weight reduction hole; 206-Fixed chuck; 207-Moving chuck; 208-Adjusting pin;

[0032] 3-Guide mechanism; 301-Guide frame seat; 302-Bearing seat; 303-Hydraulic cylinder; 304-Flange; 305-Piston rod; 306-Connecting seat; 307-Connecting plate; 308-Guide rail; 309-Sliding block;

[0033] 4- Rail top machining unit; 401- Rail top frame; 402- Rail top cutter; 403- First motor; 404- First disc; 405- First positioning wheel; 406- First horizontal plate; 407- Second positioning wheel;

[0034] 5-Railway machining unit; 501-Second horizontal plate; 502-Vertical plate; 503-Avoidance notch; 504-Railway tool; 505-Second motor; 506-Drive wheel; 507-Driven wheel; 508-Transmission belt; 509-Connecting shaft; 510-Third positioning wheel; 511-Upper guide wheel; 512-Lower guide wheel; 513-Handle;

[0035] 6- Rail bottom machining unit; 601- Rail bottom frame; 602- Rail bottom cutter; 603- Third motor; 604- Second disc; 605- Extension plate; 606- Fourth positioning wheel; 607- Third horizontal plate; 608- Fifth positioning wheel. Detailed Implementation

[0036] The embodiments of the present invention are described in detail below. Examples of the 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.

[0037] In the description of this invention, it should be noted that the directional terms such as "center", "lateral (X)", "longitudinal (Y)", "vertical (Z)", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" indicate the orientation and positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. They should not be construed as limiting the specific protection scope of this invention.

[0038] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features. Thus, the use of "first" and "second" to define a feature may explicitly or implicitly include one or more of that feature. In the description of this invention, "several" or "a number" means two or more, unless otherwise explicitly specified.

[0039] The following description, in conjunction with the accompanying drawings, further illustrates specific embodiments of the present invention, making the technical solution and its beneficial effects clearer and more explicit. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the invention. Example

[0040] See Figure 1 and Figure 2 As shown, this embodiment of the invention provides a full-section weld grinding tool, including a base 2, a guide mechanism 3, and a rail-top processing unit 4. The base, guide mechanism, and each processing unit adopt a modular design and can be disassembled into a portable, independent handling unit. Specifically, it also includes an electrical control system and a hydraulic station; the electrical control system is used to control the tool rotation speed and grinding parameters; the hydraulic station is used to provide a power source for the tool.

[0041] See Figure 3As shown, the base 2 includes a fixed frame 201, and clamps 202 for holding the rail 1 are respectively provided at both ends of the fixed frame 201. Specifically, both ends of the fixed frame 201 are connected to the clamps 202 through connecting blocks 203. The fixed frame 201 is provided with connecting holes 204 for connecting the guide mechanism 3 and several weight-reducing holes 205. A fixed chuck 206 and a movable chuck 207 are provided opposite to each other at the lower end of the clamp 202. The movable chuck 207 is provided with an adjusting pin 208. The distance between the movable chuck 207 and the fixed chuck 206 can be adjusted by adjusting the adjusting pin 208, thereby adjusting the clamping force of the clamp 202.

[0042] See Figure 4 As shown, the guiding mechanism 3 includes a guide frame seat 301, a hydraulic cylinder 303, and a connecting plate 307. A connecting seat 306 is slidably mounted on the front side of the guide frame seat 301 along the axial direction. The cylinder body of the hydraulic cylinder 303 is fixedly mounted on one end of the guide frame seat 301, and the piston rod 305 of the hydraulic cylinder 303 is connected to the connecting seat 306. The back side of the connecting plate 307 is fixedly connected to the connecting seat 306, and the front side of the connecting plate 307 is connected to the rail top processing unit 4. Specifically, a bearing seat 302 is provided at one end of the guide frame seat 301, and the hydraulic cylinder 303 is connected to the bearing seat 302 via a flange 304. A guide rail 308 is slidably mounted on the front side of the guide frame seat 301 along the axial direction, and a sliding block 309 for connecting the connecting plate 307 is slidably mounted on the guide rail 308. The extension and retraction of the piston rod of the hydraulic cylinder can drive the connecting plate to slide along the guide rail, thereby realizing the feed operation of the tools in each processing unit.

[0043] See Figure 5 and Figure 6 As shown, the rail top processing unit 4 includes a rail top frame 401, the upper end of which is connected to a connecting plate 307; a rail top cutter 402 is provided on the front of the rail top frame 401, which is a contour cutter, and the outline of the rail top cutter 402 corresponds to the outline of the rail top 11 of the rail 1. In this embodiment, the rail top cutter 402 is approximately cylindrical, and a first disc 404 is provided at the root of the rail top cutter 402; a first motor 403 for driving the rail top cutter 402 to rotate is provided on the back of the rail top frame 401; a first positioning wheel 405 adapted to the rail web 12 of the rail 1 is provided on both sides of the rail top frame 401; a first horizontal plate 406 is provided above the first positioning wheel 405, one end of the first horizontal plate 406 is connected to the rail top frame 401, and the other end of the first horizontal plate 406 is provided with a second positioning wheel 407 adapted to the rail top 11 of the rail 1. Used for positioning and guiding the rail-top tool during operation of rail-top machining unit 4. Example

[0044] See Figure 7As shown, the structure of this embodiment is basically the same as that of Embodiment 1. The difference is that in this embodiment, the rail web processing unit 5 replaces the rail top processing unit 4, and the front side of the connecting plate 307 is connected to the rail web processing unit 5.

[0045] See Figure 8 and Figure 9 As shown, the rail web processing unit 5 includes a rail web frame, a rail web cutter 504, and a second motor 505; the rail web frame includes a connected vertical plate 502 and a second horizontal plate 501; the lower center of the vertical plate 502 is provided with a clearance notch 503 adapted to the rail web cutter 504; the rail web cutter 504 is a contour cutter, and the outline of the rail web cutter 504 corresponds to the outline of the rail web 12 of the rail 1. In this embodiment, the rail web cutter is approximately cylindrical; the proximal end of the second horizontal plate 501 extends to the clearance notch. 503, and a driven wheel 507 is provided at the near end of the second horizontal plate 501, and a drive wheel 506 is provided at the far end of the second horizontal plate 501. A transmission belt 508 is arranged between the drive wheel 506 and the driven wheel 507; a second motor 505 is provided at the far end of the second horizontal plate 501, and the drive shaft of the second motor 505 is connected to the drive wheel 506; a rail web cutter 504 is provided at the near end of the second horizontal plate 501, and the rail web cutter 504 is connected to the driven wheel 507 through a connecting shaft 509. Specifically, a handle 513 is provided on the second horizontal plate 501. The lower ends of the vertical plate 502 are respectively provided with third positioning wheels 510 adapted to the rail web 12 of the rail 1; the lower ends of the vertical plate 502 are each provided with an upper guide wheel 511 adapted to the rail top 11 of the rail 1 and a lower guide wheel 512 adapted to the rail bottom 13 of the rail 1. Used for positioning and guiding the rail web cutting tool during operation of rail web machining unit 5. Example

[0046] See Figure 10 As shown, the structure of this embodiment is basically the same as that of Embodiment 1. The difference is that in this embodiment, the rail bottom processing unit 6 replaces the rail top processing unit 4, and the front side of the connecting plate 307 is connected to the rail bottom processing unit 6.

[0047] See Figure 11 and Figure 12As shown, the rail base processing unit 6 includes a rail base frame 601. An extension plate 605 for connecting the connecting plate 307 is provided at the upper end of the rail base frame 601. A rail base cutter 602 is provided on the front side of the rail base frame 601. This rail base cutter 602 is a contour cutter, and its outline corresponds to the outline of the rail base 13 of the rail 1. In this embodiment, the rail base cutter 602 is approximately cylindrical, and a second disc 604 is provided at the root of the rail base cutter 602. A third motor 603 for driving the rail base cutter 602 to rotate is provided on the back side of the rail base frame 601. Fourth positioning wheels 606 adapted to the rail web of the rail 1 are respectively provided at both ends of the upper side of the rail base frame 601. Third horizontal plates 607 are respectively provided at both ends of the lower side of the rail base frame 601. A fifth positioning wheel 608 adapted to the rail base 13 of the rail 1 is provided at the end of the third horizontal plate 607 for positioning and guiding the rail base cutter during operation of the rail base processing unit 6.

[0048] The working principle of this invention is as follows:

[0049] This full-section weld grinding machine, when performing post-weld grinding operations on rails, transports its various portable modular units to the work site. These units are then fixed to the rail on a base using clamps. The rail top, rail web, and rail bottom processing units can be mounted on the guide mechanism connecting plate, respectively. Motors and hydraulic cylinders control the processing and feeding of the contour cutting tools. This combination of contour cutting tools, replacing grinding with milling, enables the one-time milling and shaping of the entire rail weld section.

[0050] In the description of this specification, references to terms such as "an embodiment," "preferred," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. Illustrative expressions of the above terms in this specification do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0051] This invention is not limited to the embodiments described above. Those skilled in the art can make various improvements and modifications without departing from the principles of this invention, and these improvements and modifications are also considered within the scope of protection of this invention. Contents not described in detail in this specification are prior art known to those skilled in the art.

Claims

1. A full-section weld grinding tool, comprising a base (2), characterized in that: It also includes a guide mechanism (3), a rail top processing unit (4), a rail web processing unit (5), and a rail bottom processing unit (6); the base (2), the guide mechanism (3), and each processing unit adopt a modular design and can be disassembled into a portable independent handling unit; The base (2) includes a fixed frame (201), and the two ends of the fixed frame (201) are respectively provided with clamps (202) for clamping the rail (1). The guiding mechanism (3) includes a guide frame seat (301), a hydraulic cylinder (303), and a connecting plate (307); a connecting seat (306) is slidably provided on the front side of the guide frame seat (301) along the axial direction; the cylinder body of the hydraulic cylinder (303) is fixedly provided at one end of the guide frame seat (301), and the piston rod (305) of the hydraulic cylinder (303) is connected to the connecting seat (306); the back side of the connecting plate (307) is fixedly connected to the connecting seat (306), and the front side of the connecting plate (307) can be selectively connected to one of the rail top processing unit (4), the rail web processing unit (5), and the rail bottom processing unit (6); The rail web processing unit (5) includes a rail web frame, a rail web cutter (504), and a second motor (505); the rail web frame includes a connected vertical plate (502) and a second horizontal plate (501); the lower center of the vertical plate (502) is provided with a clearance notch (503) adapted to the rail web cutter (504); the rail web cutter (504) is a contour cutter, and the outline of the rail web cutter (504) corresponds to the outline of the rail web (12) of the rail (1); the proximal end of the second horizontal plate (501) extends to the clearance notch (503), and the second horizontal plate (505)... A driven wheel (507) is provided at the near end of the flat plate (501), and a drive wheel (506) is provided at the far end of the second horizontal plate (501). A transmission belt (508) is arranged between the drive wheel (506) and the driven wheel (507). The second motor (505) is located at the far end of the second horizontal plate (501), and the drive shaft of the second motor (505) is connected to the drive wheel (506). The rail web cutter (504) is located at the near end of the second horizontal plate (501), and the rail web cutter (504) is connected to the driven wheel (507) through a connecting shaft (509).

2. The full-section weld grinding tool as described in claim 1, characterized in that: The two ends of the fixed frame (201) are connected to the clamp (202) through connecting blocks (203) respectively. The fixed frame (201) is provided with connecting holes (204) for connecting the guide mechanism (3) and several weight reduction holes (205).

3. The full-section weld grinding tool as described in claim 1, characterized in that: The lower end of the clamp (202) is provided with a fixed clamp (206) and a movable clamp (207) opposite each other, and the movable clamp (207) is provided with an adjusting pin (208).

4. The full-section weld grinding tool as described in claim 1, characterized in that: One end of the guide frame seat (301) is provided with a bearing seat (302), and the oil cylinder (303) is connected to the bearing seat (302) through a flange (304).

5. The full-section weld grinding tool as described in claim 1, characterized in that: The guide frame seat (301) has a guide rail (308) arranged axially on its front side, and a sliding block (309) for connecting the connecting plate (307) is slidably arranged on the guide rail (308).

6. The full-section weld grinding tool as described in claim 1, characterized in that: The rail top processing unit (4) includes a rail top frame (401), the upper end of which is connected to a connecting plate (307); a rail top cutter (402) is provided on the front of the rail top frame (401), which is a contour cutter, the outline of which corresponds to the outline of the rail top (11) of the rail (1), and a first disc (404) is provided at the root of the rail top cutter (402); a drive mechanism is provided on the back of the rail top frame (401). The first motor (403) that rotates the rail top cutter (402); the two sides of the rail top frame (401) are respectively provided with first positioning wheels (405) that are adapted to the rail web (12) of the rail (1); a first horizontal plate (406) is provided above the first positioning wheel (405), one end of the first horizontal plate (406) is connected to the rail top frame (401), and the other end of the first horizontal plate (406) is provided with a second positioning wheel (407) that is adapted to the rail top (11) of the rail (1).

7. The full-section weld grinding tool as described in claim 1, characterized in that: The vertical plate (502) is provided with a third positioning wheel (510) at both ends of its lower side, which is adapted to the web (12) of the rail (1); the vertical plate (502) is provided with an upper guide wheel (511) adapted to the top (11) of the rail (1) and a lower guide wheel (512) adapted to the bottom (13) of the rail (1) at both ends of its lower side.

8. The full-section weld grinding tool as described in claim 1, characterized in that: The rail base processing unit (6) includes a rail base frame (601), and an extension plate (605) for connecting the connecting plate (307) is provided at the upper end of the rail base frame (601); a rail base cutter (602) is provided on the front side of the rail base frame (601), which is a contour cutter, the outline of the rail base cutter (602) corresponds to the outline of the rail base (13) of the rail (1), and a second disc body (604) is provided at the root of the rail base cutter (602). A third motor (603) for driving the rotation of the rail base cutter (602) is provided on the back of the rail base frame (601); a fourth positioning wheel (606) adapted to the web of the rail (1) is provided at both ends of the upper side of the rail base frame (601); a third horizontal plate (607) is provided at both ends of the lower side of the rail base frame (601), and a fifth positioning wheel (608) adapted to the rail base (13) of the rail (1) is provided at the end of the third horizontal plate (607).

9. The full-section weld grinding tool as described in claim 1, characterized in that: It also includes an electrical control system and a hydraulic station; the electrical control system is used to control the tool rotation speed and grinding parameters; the hydraulic station is used to provide a power source for the machine.

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