Rail positioning device and rail grinding system

Abstract

The utility model discloses a kind of steel rail positioning device and steel rail polishing system, it is related to machining technical field, steel rail positioning device includes casing, first positioning mechanism and second positioning mechanism, first positioning mechanism includes portal frame and driving part, portal frame is slidably arranged in casing and is formed with positioning space between casing, driving part is arranged in casing, and is connected to portal frame, driving part can drive portal frame reciprocating sliding to adjust the size of positioning space, to press down steel rail. Second positioning mechanism is arranged in casing, and is used for clamping and fixing to the both sides of steel rail, to lock steel rail completely. First positioning mechanism and second positioning mechanism of the application are integrated on casing, can work mutually, and integrated degree is high, and space occupied is small.

Description

Technical Field

[0001] This utility model relates to the field of mechanical processing technology, specifically to a rail positioning device and a rail grinding system. Background Technology

[0002] Train tracks have been used in my country for many years, mainly to support trains and ensure their smooth operation. Train tracks are usually made up of multiple rail sections welded together end to end. After welding, uneven weld beads will appear at the weld joint between adjacent rail sections. Therefore, in order to improve the safety of train track use, grinding equipment is needed to grind the joint between adjacent rail sections to eliminate weld beads.

[0003] However, traditional grinding equipment uses multiple positioning components to fix the rails before grinding them. These positioning components are independent, have low integration, and occupy a lot of space. Utility Model Content

[0004] The purpose of this utility model is to overcome the above-mentioned technical deficiencies and propose a rail positioning device and a rail grinding system to solve the technical problems of existing grinding equipment having multiple independent positioning components, low integration, and large space occupation.

[0005] To achieve the above-mentioned technical objectives, the present invention adopts the following technical solution:

[0006] This utility model provides a rail positioning device, comprising:

[0007] chassis;

[0008] A first positioning mechanism includes a gantry frame and a drive component. The gantry frame is slidably mounted on the housing and forms a positioning space between it and the housing. The drive component is mounted on the housing and connected to the gantry frame. The drive component can drive the gantry frame to slide back and forth to adjust the size of the positioning space.

[0009] The second positioning mechanism is located on the housing and is used to clamp and fix the two sides of the rail.

[0010] In some embodiments, the gantry includes a lower pressure beam and two slide rods. The two slide rods are respectively connected to both ends of the lower pressure beam. The two slide rods are arranged in parallel and spaced apart and are slidably connected to the housing. The positioning space is formed between the lower pressure beam, the housing and the two slide rods. The driving component is connected to the slide rods.

[0011] In some embodiments, the gantry further includes a cushioning elastic pad disposed on the side of the lower pressure beam facing the housing.

[0012] In some embodiments, the first positioning mechanism further includes a return spring, which is sleeved on the slide bar and can drive the lower pressure beam to move upward to reset by elastic force.

[0013] In some embodiments, the first positioning mechanism further includes a passive roller, which is rotatably disposed on the housing and located at the bottom of the gantry.

[0014] In some embodiments, the second positioning mechanism includes a left rail clamp, a right rail clamp, and an auxiliary drive source. The left rail clamp and the right rail clamp are rotatably mounted on the housing. The auxiliary drive source is mounted on the housing and is used to drive the clamping ends of the left rail clamp and the right rail clamp to move closer to or further away from each other.

[0015] In some embodiments, the left rail clamp and the right rail clamp are engaged, and the auxiliary drive source is rotatably connected to the right rail clamp, and can simultaneously drive the left rail clamp to rotate when the right rail clamp is driven to rotate through engagement.

[0016] Secondly, this utility model also provides a rail grinding system, including a robot control unit, a vision inspection module, and the aforementioned rail positioning device. The vision inspection module is connected to the robot control unit and is used to transmit the captured rail position information to the robot control unit so that the robot control unit can grind the rail.

[0017] In some embodiments, the visual inspection module includes a positioning camera and a fill light connected to each other. The positioning camera is used to photograph the part of the rail to be ground, and the fill light is used to provide supplementary lighting for the positioning camera.

[0018] In some embodiments, the robot control unit includes a six-axis robotic arm module and a grinding head, the grinding head being disposed at the end of the six-axis robotic arm module.

[0019] Compared with existing technologies, the rail positioning device provided by this utility model has a positioning space for rail installation. The driving component drives the gantry frame to slide downwards to press down on the rail, thus fixing it in place. Simultaneously, the second positioning mechanism clamps and fixes both sides of the rail for complete secure fixation. When it is necessary to release the rail, the gantry frame can be driven upwards to detach from the rail, and the second positioning mechanism controls the unlocking of the rail. Both the first and second positioning mechanisms of this application are integrated into the housing, resulting in high integration and a small footprint. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of the rail positioning device provided in this embodiment of the utility model;

[0021] Figure 2 This is a schematic diagram of the structure of the second positioning mechanism provided in this embodiment of the utility model;

[0022] Figure 3 This is a schematic diagram of the structure of the first positioning mechanism provided in this embodiment of the utility model;

[0023] Figure 4 This is a schematic diagram of the rail grinding system provided in this embodiment of the utility model. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0025] To address the technical problems of existing grinding equipment consisting of multiple independent working components with low integration and large space occupation, this utility model provides a rail positioning device that integrates multiple working components together, allowing them to work in coordination without interfering with each other, while occupying less space.

[0026] It should be noted that the rail positioning device described in this utility model is used for, but not limited to, rail positioning. For ease of explanation, this utility model only uses the application of the rail positioning device in rail positioning as an example. The principle of the rail positioning device applied to other types of equipment is essentially the same as that applied to rail positioning, and will not be described in detail here.

[0027] Please see Figures 1 to 3 , Figure 1 This is a schematic diagram of the structure of a rail positioning device 100 in one embodiment of the present invention. The rail positioning device 100 includes a first positioning mechanism 1, a second positioning mechanism 2, and a housing 3. The first positioning mechanism 1 includes a gantry frame 11 and a driving member 12. The gantry frame 11 is slidably disposed on the housing 3 and forms a positioning space 13 between it and the housing 3. The driving member 12 is disposed on the housing 3 and connected to the gantry frame 11. The driving member 12 can drive the gantry frame 11 to slide back and forth to adjust the size of the positioning space 13.

[0028] The second positioning mechanism 2 is located on the housing 3 and is used to clamp and fix the two sides of the rail, so as to cooperate with the first positioning mechanism 1 to completely fix the rail, so as to facilitate the grinding of the rail.

[0029] In this embodiment, the housing 3 serves as the basic support structure for the entire device, and integrates the first positioning mechanism 1 and the second positioning mechanism 2. The first positioning mechanism 1, through the cooperation of the gantry frame 11 and the drive component 12, can adjust the size of the positioning space 13 to achieve the fixing and release of the rail 4. The second positioning mechanism 2 clamps and fixes the rail on both sides for grinding operations. Both the first positioning mechanism 1 and the second positioning mechanism 2 are integrated and installed on the housing 3. The components cooperate with each other, occupying little space, effectively solving the problems of scattered positioning components and low integration in traditional rail grinding equipment.

[0030] In one embodiment, please refer to Figure 2 The gantry frame 11 includes a lower pressure beam 111 and two slide rods 112. The two slide rods 112 are respectively connected to the two ends of the lower pressure beam 111. The two slide rods 112 are arranged in parallel and spaced apart, and are slidably connected to the housing 3. The positioning space 13 is formed between the lower pressure beam 111, the housing 3 and the two slide rods 112. The driving component 12 is connected to the slide rods 112. In this embodiment, the positioning space 13 is used to accommodate the steel rail 4 to be ground. After the steel rail 4 is inserted into the positioning space 13, it can be placed on the driving wheel 21. The driving wheel 21 is fitted with a rubber ring. When the driving wheel 21 rotates, it can drive the steel rail 4 to move through the friction of the rubber ring, so that after one part of the steel rail 4 is ground, the other part to be ground can be moved to the grinding station. When it is necessary to fix the rail 4 located in the positioning space 13, the drive component 12 can be controlled to drive the two slide rods 112 to slide downwards. The two slide rods 112 drive the lower pressure beam 111 to move downwards to press against the top of the rail 4, thereby fixing the rail 4. When it is necessary to release the rail 4, the drive component 12 can be controlled to drive the two slide rods 112 to slide upwards. The two slide rods 112 drive the lower pressure beam 111 to move upwards to disengage from the rail 4, allowing the rail 4 to move again.

[0031] The housing 3 is also provided with a placement platform 31. The surface of the placement platform 31 is flush with the top of the drive wheel 21. The placement platform 31 can work together with the drive wheel 21 to support the rail 4. The surface of the placement platform 31 is smooth, so that the rail 4 can move easily on the surface of the placement platform 31 when the drive wheel 21 drives the rail 4 to move.

[0032] The driving component 12 includes a driving cylinder 121 and a connecting plate 122. The two ends of the connecting plate 122 are respectively connected to the ends of two slide rods 112 away from the lower pressure beam 111. The driving cylinder 121 is connected to the connecting plate 122 and can drive the connecting plate 122 to move back and forth, thereby driving the two slide rods 112 to slide downward through the connecting plate 122.

[0033] In one embodiment, please refer to Figure 2The gantry 11 also includes a buffer elastic pad 113, which is located on the side of the lower pressure beam 111 facing the housing 3. In this embodiment, the buffer elastic pad 113 can be a rubber pad or a spring pad. When the gantry 11 presses down on the rail 4, the buffer elastic pad 113 can reduce the impact force between the lower pressure beam 111 and the rail 4, protect the surface of the rail 4 from damage, and also extend the service life of the device.

[0034] In one embodiment, please refer to Figure 2 The first positioning mechanism 1 also includes a return spring 14, which is sleeved on the slide rod 112 and can drive the lower pressure beam 111 upward to reset via elastic force. In this embodiment, the return spring 14 is sleeved on the slide rod 112, with one end connected to the housing 3 and the other end connected to the lower pressure beam 111. When the driving member 12 drives the gantry frame 11 upward, the return spring 14 is stretched, generating elastic force. Once the driving member 12 stops working, the elastic force of the return spring 14 can drive the lower pressure beam 111 upward to achieve automatic reset, preparing for the next fixing of the rail 4.

[0035] The first positioning mechanism 1 also includes a passive roller 15, which is rotatably mounted on the housing 3 and located at the bottom of the gantry 11. In this embodiment, when the rail is located within the positioning space 13, the rail is placed on top of the passive roller 15. The rail is connected to a corresponding drive component (not shown in the figure), and the rail can gradually move forward under the action of the drive component. The rail moves on the passive roller 15 and drives the passive roller 15 to roll through friction. Therefore, the passive roller 15 in this embodiment is mainly used to guide the rail. Compared with sliding friction, this embodiment makes the movement of the rail more convenient through the passive roller 15.

[0036] In one embodiment, please refer to Figure 2 The rail positioning device also includes a second positioning mechanism 2, which is located on the housing 3 and is used to clamp and fix the bottom of the rail 4. The aforementioned downward pressure beam 111 is mainly used to press down on the top of the rail 4 to restrict the rail 4 from moving vertically. In this embodiment, the second positioning mechanism 2 clamps and fixes the bottom sides of the rail 4, thereby fixing the bottom and left and right sides of the rail 4, thus completely fixing the rail 4 to prevent it from shaking during the grinding process.

[0037] Further, please refer to Figure 2The second positioning mechanism 2 includes a left rail clamp 21, a right rail clamp 22, and a hydraulic control unit 23. Both the left rail clamp 21 and the right rail clamp 22 are rotatably mounted on the housing 3. The hydraulic control unit 23 is located on the housing 3 and is used to drive the clamping ends of the left rail clamp 21 and the right rail clamp 22 to move closer or further apart. In this embodiment, both the left rail clamp 21 and the right rail clamp 22 are arc-shaped clamping arms, one end of which is rotatably mounted on the housing 3 via a pivot, and the two are interlocked. In the initial state, the clamping ends of the left rail clamp 21 and the right rail clamp 22 are in an open state so that the rail can smoothly enter the positioning space 13. After the rail 4 enters the positioning space 13, the top of the rail 4 is first pressed down by the lower crossbeam 111, and then the hydraulic control unit 23 controls the clamping ends of the left rail clamp 21 and the right rail clamp 22 to move closer to each other to clamp the rail 4 from both sides, thereby completely fixing the rail 4.

[0038] The left rail clamp 21 and the right rail clamp 22 are engaged. The hydraulic control unit 23 is rotatably connected to the non-clamping end of the right rail clamp 22. During operation, the hydraulic control unit 23 can extend and retract to drive the right rail clamp 22 to rotate. When the right rail clamp 22 rotates, it simultaneously drives the left rail clamp 21 to rotate through engagement. This embodiment improves the structural integration by engaging the left rail clamp 21 and the right rail clamp 22, and also enables them to work synchronously, thus improving the stability of the structure.

[0039] Please see Figure 4 The present invention also provides a rail grinding system 200, including a robot control unit 6, a vision inspection module 7 and the aforementioned rail positioning device 100. The vision inspection module 7 is connected to the robot control unit 6 and is used to transmit the captured rail position information to the robot control unit 6 so that the robot control unit 6 can perform precise grinding on the rail 4.

[0040] In one embodiment, please refer to Figure 2The visual inspection module 7 includes a positioning camera 71 and a supplementary light 72 connected to each other. The positioning camera 71 is used to photograph the part of the rail 4 to be polished, and the supplementary light 72 is used to provide supplementary lighting for the positioning camera 71. In this embodiment, the positioning camera 71 is mounted in a suitable position via a bracket, typically in a direction perpendicular to the length of the rail 4. The positioning camera 71 photographs the part of the rail to be polished, acquiring the position information and surface condition image of the rail 4. The positioning camera 71 is connected to the robot control unit 6 in the same control system. The positioning camera 71 transmits the position information and surface condition image of the rail 4 to the control system. The control system automatically controls the working path of the robot control unit 6 based on the position information and the surface image of the rail, so that the robot control unit 6 can accurately polish the rail. The supplementary light 72 is connected to the positioning camera 71 and provides supplementary lighting for the positioning camera 71 in low-light environments to ensure the clarity of the captured image.

[0041] In one embodiment, please refer to Figure 2 The robot control unit 6 includes a six-axis robotic arm module 61 and a grinding head 62, with the grinding head 62 located at the end of the six-axis robotic arm module 61. In this embodiment, the six-axis robotic arm module 61 has multiple degrees of freedom, allowing for flexible adjustment of the position and angle of the grinding head 62. This enables the grinding head 62 to grind multiple parts of the rail 4, ensuring thorough grinding and improving grinding quality.

[0042] To better understand this utility model, the following is combined with... Figures 1 to 4 The technical solution of this utility model is described in detail below:

[0043] The rail positioning device provided by this utility model has a positioning space 13 for the rail to pass through. The driving component 12 drives the gantry frame 11 to slide downward to press down on the rail and fix it. At the same time, the second positioning mechanism 2 can clamp and fix both sides of the rail to completely fix it. When it is necessary to release the rail, the gantry frame 11 can be driven to slide upward to disengage from the rail, and the rail can be unlocked by controlling the second positioning mechanism 2. The first positioning mechanism and the second positioning mechanism of this application are both integrated on the housing, which has a high degree of integration and occupies little space.

[0044] The specific embodiments of this utility model described above do not constitute a limitation on the scope of protection of this utility model. Any other corresponding changes and modifications made based on the technical concept of this utility model should be included within the scope of protection of the claims of this utility model.

Claims

1. A rail positioning device, characterised in that, include: chassis; The first positioning mechanism includes a gantry and a drive component. The gantry is slidably disposed on the housing and forms a positioning space between it and the housing. The drive component is disposed on the housing and connected to the gantry. The drive component can drive the gantry to slide back and forth to adjust the size of the positioning space. and The second positioning mechanism is located on the housing and is used to clamp and fix the two sides of the rail.

2. The rail positioning device of claim 1, wherein, The gantry includes a lower pressure beam and two sliding rods. The two sliding rods are respectively connected to the two ends of the lower pressure beam. The two sliding rods are arranged in parallel and spaced apart and are slidably connected to the housing. The positioning space is formed between the lower pressure beam, the housing and the two sliding rods. The driving component is connected to the sliding rods.

3. The rail positioning device of claim 2, wherein, The gantry also includes a buffer elastic pad, which is located on the side of the lower pressure beam facing the housing.

4. The rail positioning device of claim 2, wherein, The first positioning mechanism further includes a return spring, which is sleeved on the slide bar and can drive the lower pressure beam to move upward to reset through elastic force.

5. The rail positioning device of claim 1, wherein, The first positioning mechanism further includes a passive roller, which is rotatably mounted on the housing and located at the bottom of the gantry.

6. The rail positioning device according to claim 1, characterized in that, The second positioning mechanism includes a left rail clamp, a right rail clamp, and an auxiliary drive source. The left rail clamp and the right rail clamp are rotatably mounted on the housing. The auxiliary drive source is located on the housing and is used to drive the clamping ends of the left rail clamp and the right rail clamp to move closer to or further away from each other.

7. The rail positioning device of claim 6, wherein, The left rail clamp and the right rail clamp are engaged. The auxiliary drive source is rotatably connected to the right rail clamp and can simultaneously drive the left rail clamp to rotate when the right rail clamp is driven to rotate.

8. A rail grinding system characterized by, The device includes a robot control unit, a vision inspection module, and a rail positioning device as described in any one of claims 1-7. The vision inspection module is connected to the robot control unit and is used to transmit the captured rail position information to the robot control unit so that the robot control unit can grind the rail.

9. The rail grinding system of claim 8, wherein, The visual inspection module includes a positioning camera and a fill light connected to each other. The positioning camera is used to photograph the part of the rail to be ground, and the fill light is used to provide supplementary lighting for the positioning camera.

10. The rail grinding system of claim 8, wherein, The robot control unit includes a six-axis robotic arm module and a grinding head, with the grinding head located at the end of the six-axis robotic arm module.

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