Automatic polishing and measuring device for wheel bore

Abstract

This invention discloses an automatic grinding and measuring device for the inner bore of wheels, relating to the field of rail transit equipment manufacturing technology. It includes an automatic grinding wheel changing device. The top of the device is fixedly connected to a mounting frame, and several grinding wheel holders are fixedly connected to the inner side of the mounting frame. The storage area on the mounting frame is divided into a straight-walled grinding wheel group and a spherical grinding wheel group. The straight-walled grinding wheel group is used to place and store straight-walled grinding wheels on the grinding wheel holders. This device offers the following advantages: by placing the work platform above a dust collection device, suction is generated at the top when the dust collection device is working, and the powder generated during grinding the inner bore of the workpiece is sucked in by the dust collection device, saving space and providing good dust collection. By incorporating the automatic grinding wheel changing device, a large six-axis robot can automatically change straight-walled grinding wheels, spherical grinding wheels, and oiling wheels to complete the grinding work without external force.

Description

Technical Field

[0001] This invention relates to the field of rail transit equipment manufacturing technology, specifically to automatic grinding and measuring equipment for wheel inner bores. Background Technology

[0002] Grinding is used in the manufacturing of rail transit equipment. The train wheel hub is the core component of the train wheel, which plays a key role in connecting the wheel and the axle, transmitting load and ensuring driving safety. However, in the pretreatment of the train wheel hub, it is necessary to meet the specified roughness value and oil trajectory. The existing technology can only use manual hand-held grinding tools for grinding, and a large number of intermediate processing steps need to be handled manually. In addition, a lot of dust is generated during the grinding process, which is harmful to the health of the workers. Summary of the Invention

[0003] To address the shortcomings of existing technologies, this invention provides an automatic grinding and measuring device for wheel inner holes, which solves the problems mentioned in the background section.

[0004] To achieve the above objectives, the present invention provides the following technical solution: an automatic grinding and measuring device for wheel bores, including an automatic grinding wheel changing device. A mounting frame is fixedly connected to the top of the automatic grinding wheel changing device. Several grinding wheel holders are fixedly connected to the inner side of the mounting frame. The storage area on the mounting frame is divided into a straight-walled grinding wheel group and a spherical grinding wheel group. The straight-walled grinding wheel group is used to place and store straight-walled grinding wheels on the grinding wheel holders, and the spherical grinding wheel group is used to place and store spherical grinding wheels on the grinding wheel holders. A servo motor central control turntable is fixedly connected to the top of the automatic grinding wheel changing device and located in the middle of the mounting frame. A grinding wheel lifting device is fixedly connected to the output end of the servo motor central control turntable. The cylinder includes a grinding wheel loading lifting cylinder with a fixed telescopic end, a grinding wheel clamping cylinder, and two fixed drive ends of the grinding wheel clamping cylinder. A bracket is fixedly connected to the top of the automatic grinding wheel changing equipment at the right end opening of the mounting frame. A grinding wheel unloading lifting cylinder is fixedly connected inside the bracket, with a grinding wheel unloading telescopic cylinder fixedly connected to its telescopic end. A fixed frame is fixedly connected to the telescopic end of the grinding wheel unloading telescopic cylinder. A grinding rod clamping cylinder is fixedly connected to the top of the bracket, with two fixed drive ends of the grinding rod clamping cylinder fixedly connected to a first clamp.

[0005] Preferably, the top of the automatic grinding wheel changing device is fixedly connected to a protective cover, and a reset button light is fixedly connected to the top of the protective cover and to one side of the grinding wheel frame. Limit switches are fixedly connected to the mounting frame and to one side of the grinding wheel frame.

[0006] Preferably, a waste grinding wheel recycling bin is placed on top of the automatic grinding wheel changing device and at the left end opening of the mounting frame.

[0007] Preferably, an oiling wheel is placed inside one of the grinding wheel frames. A mounting frame is fixedly connected to the top of the automatic grinding wheel changing equipment and between the mounting frame and the protective cover. An oil box opening and closing cylinder is fixedly connected to one end of the mounting frame. Both drive ends of the oil box opening and closing cylinder are fixedly connected to a closed box. An oil nozzle is fixedly connected to one side of the mounting frame. The input end of the oil nozzle is connected to a solenoid valve and a sprayer installed on the top of the automatic grinding wheel changing equipment. One end of the sprayer extends into the oil tank. A maintenance and replenishment oil port is provided on the surface of the protective cover on one side of the mounting frame.

[0008] Preferably, a working platform is fixedly connected to one side of the automatic grinding wheel changing device, a dust collection device is installed below the working platform, a small six-axis robot is fixedly connected to the top of the working platform, a camera is installed at one end of the small six-axis robot, and a roughness measuring instrument is installed at one end of the small six-axis robot and to the side of the camera. The roughness measuring instrument is a Mitutoyo roughness measuring instrument, and the small six-axis robot automatically performs the roughness measurement using the Mitutoyo roughness measuring instrument. The dust collection device and the working platform are both 1000*800*750 type grinding and dust removal workbenches.

[0009] Preferably, a large six-axis robot is fixedly connected to one side of the automatic grinding wheel changing device, and a force control system is installed on the large six-axis robot.

[0010] This invention provides an automatic grinding and measuring device for the inner bore of wheels, which has the following beneficial effects: This automatic wheel bore grinding and measuring equipment has the following advantages. 1. By placing the work platform above the dust collection device, the dust collection device generates suction at the top when it is working. The powder generated during the grinding of the inner hole of the workpiece will be sucked into the dust collection device, saving space and providing good dust collection effect. Furthermore, this equipment can realize automated grinding and roughness detection. 2. By installing an automatic grinding wheel changing device, the large six-axis robot can automatically change straight-walled grinding wheels, spherical grinding wheels and oiling wheels to complete the grinding work without being subjected to external force. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the internal structure of the mounting frame on the automatic grinding wheel changing equipment of the present invention; Figure 3 This is a schematic diagram of the support structure of the present invention; Figure 4 This is a schematic diagram of the limit switch position structure of the present invention.

[0012] In the diagram: 1. Automatic grinding wheel changer; 2. Dust collection device; 3. Working platform; 4. Small six-axis robot; 5. Roughness tester; 6. Camera; 7. Large six-axis robot; 8. Force control system; 9. Protective cover; 10. Mounting rack; 11. Grinding wheel holder; 12. Reset button light; 13. Limit switch; 14. Mounting bracket; 15. Oil box opening and closing cylinder; 16. Enclosed box; 17. Straight wall grinding wheel set; 18. Spherical grinding wheel set; 19. Oiling wheel; 20. Straight-walled grinding wheel; 21. Spherical grinding wheel; 22. Support; 23. Grinding wheel unloading lifting cylinder; 24. Grinding wheel unloading telescopic cylinder; 25. Grinding rod clamping cylinder; 26. Fixing frame; 27. First clamp; 28. Oil nozzle; 29. ​​Waste grinding wheel recycling box; 30. Grinding wheel loading lifting cylinder; 31. Grinding wheel loading telescopic cylinder; 32. Grinding wheel clamping cylinder; 33. Second clamp; 34. Servo motor central control turntable. Detailed Implementation

[0013] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0014] Please see Figures 1 to 4 This invention provides a technical solution: an automatic grinding and measuring device for wheel inner bores, including an automatic grinding wheel changing device 1. A mounting frame 10 is fixedly connected to the top of the automatic grinding wheel changing device 1. Several grinding wheel frames 11 are fixedly connected to the inner side of the mounting frame 10. The storage area on the mounting frame 10 is divided into a straight-walled grinding wheel group 17 and a spherical grinding wheel group 18. The straight-walled grinding wheel group 17 is used to place and store straight-walled grinding wheels 20 on the grinding wheel frames 11, and the spherical grinding wheel group 18 is used to place and store spherical grinding wheels 21 on the grinding wheel frames 11. A servo motor central control turntable 34 is fixedly connected to the top of the automatic grinding wheel changing device 1 and located in the middle of the mounting frame 10. A grinding wheel lifting cylinder 30 is fixedly connected to the output end of the servo motor central control turntable 34. A grinding wheel loading telescopic cylinder 31 is fixedly installed at the telescopic end of the lifting cylinder 30. A grinding wheel clamping cylinder 32 is fixedly connected to the telescopic end of the grinding wheel loading telescopic cylinder 31. A second clamp 33 is fixedly connected to both drive ends of the grinding wheel clamping cylinder 32. A bracket 22 is fixedly connected to the top of the automatic grinding wheel changing device 1 and at the right end opening of the mounting frame 10. A grinding wheel unloading lifting cylinder 23 is fixedly connected inside the bracket 22. A grinding wheel unloading telescopic cylinder 24 is fixedly connected to the telescopic end of the grinding wheel unloading lifting cylinder 23. A fixed frame 26 is fixedly connected to the telescopic end of the grinding wheel unloading telescopic cylinder 24. A grinding rod clamping cylinder 25 is fixedly connected to the top of the bracket 22. A first clamp 27 is fixedly connected to both drive ends of the grinding rod clamping cylinder 25.

[0015] The top of the automatic grinding wheel changing device 1 is fixedly connected to a protective cover 9. A reset button light 12 is fixedly connected to the top of the protective cover 9 and to one side of the grinding wheel frame 11. A limit switch 13 is fixedly connected to the mounting frame 10 and to one side of the grinding wheel frame 11.

[0016] A waste grinding wheel recycling bin 29 is placed on top of the automatic grinding wheel changing device 1 and at the left end opening of the mounting frame 10.

[0017] An oiling wheel 19 is placed inside a grinding wheel frame 11. A mounting frame 14 is fixedly connected to the top of the automatic grinding wheel changing device 1 and between the mounting frame 10 and the protective cover 9. An oil box opening and closing cylinder 15 is fixedly connected to one end of the mounting frame 14. Both drive ends of the oil box opening and closing cylinder 15 are fixedly connected to a closed box 16. An oil nozzle 28 is fixedly connected to one side of the mounting frame 14. The input end of the oil nozzle 28 is connected to a solenoid valve and a sprayer installed on the top of the automatic grinding wheel changing device 1, and one end of the sprayer extends into the oil tank. A maintenance and replenishment oil port is provided on the surface of the protective cover 9 on one side of the mounting frame 14.

[0018] A working platform 3 is fixedly connected to one side of the automatic grinding wheel changing device 1. A dust collection device 2 is installed below the working platform 3. A small six-axis robot 4 is fixedly connected to the top of the working platform 3. A camera 6 is installed at one end of the small six-axis robot 4. A roughness detector 5 is installed at one end of the small six-axis robot 4 and to the side of the camera 6.

[0019] A large six-axis robot 7 is fixedly connected to one side of the automatic grinding wheel changing device 1, and a force control system 8 is installed on the large six-axis robot 7.

[0020] In summary, this automatic wheel bore grinding and measuring equipment requires manual placement of the grinding wheels according to the area markings on the mounting frame 10. The spherical grinding wheel 21 is placed within the spherical grinding wheel set 18, the straight-walled grinding wheel 20 is placed inside the straight-walled grinding wheel set 17, and the oiling wheel 19 is placed on the designated grinding wheel holder 11. The overhead robotic arm places the wheel on the work platform 3 and transmits the material location information to the large six-axis robot 7. The small six-axis robot 4, carrying the camera 6, takes a picture of the wheel's upper surface. The information of the inner hole center is provided to the six-axis robot 7. With the assistance of the automatic grinding wheel changing device 1, the six-axis robot 7 performs tasks such as installing grinding wheels, straight wall grinding, changing ball cutters, and grooving and chamfering grinding. During the grinding process, the dust is collected by the dust collection device 2, and the roughness is measured by the roughness detector 5. With the assistance of the automatic grinding wheel changing system, the six-axis robot 7 changes the oiling wheel 19 and applies anti-rust medium to the inner hole of the wheel. The wheel is then removed from the work platform 3, completing one processing cycle. When the grinding wheel assembly is being indexed, the output of the servo motor-controlled turntable 34 drives the grinding wheel lifting cylinder 30, the grinding wheel telescopic cylinder 31, the grinding wheel clamping cylinder 32, and the second clamp 33 to rotate to a specified angle. The two drive ends of the grinding wheel clamping cylinder 32 then open the second clamp 33. The grinding wheel telescopic cylinder 31 then adjusts the extension position of the grinding wheel clamping cylinder 32. Once in position, the two drive ends of the grinding wheel clamping cylinder 32 close the two second clamps 33, clamping the grinding wheel. The grinding wheel telescopic cylinder 31 then drives the grinding wheel clamping mechanism... Cylinder 32 retracts, removing the grinding wheel from the grinding wheel holder 11. The indexing and mounting grinding wheel assembly rotates to the tool changing position. Grinding wheel telescopic cylinder 31 extends, and grinding wheel lifting cylinder 30 rises, mounting the grinding wheel onto the grinding rod clamped in the first fixture 27. Grinding wheel clamping cylinder 32 releases, grinding wheel telescopic cylinder 31 retracts, and grinding wheel lifting cylinder 30 descends, completing the grinding wheel mounting action. The two drive ends of the grinding rod clamping cylinder 25 drive the two first fixtures 27 to release. The large six-axis robot 7, carrying the grinding rod and grinding wheel, returns to the tool changing position after completing the predetermined grinding work. During the clamping and disassembly of the grinding wheel assembly, the telescopic end of the grinding wheel lifting cylinder 23 pushes the grinding wheel telescopic cylinder 24 and the fixed frame 26 to rise. The telescopic end of the grinding wheel telescopic cylinder 24 pushes the fixed frame 26 to extend. The fixed frame 26 removes the grinding wheel. The grinding wheel lifting cylinder 23 descends, and the grinding wheel telescopic cylinder 24 remains stationary. At this time, the position of the removed grinding wheel is at the same center as the other grinding wheels. To install the grinding wheel assembly, remove the grinding wheel from the fixed frame 26 and place it on the grinding wheel holder 11 on the straight wall grinding wheel assembly 17 or the spherical grinding wheel assembly 18. When the grinding wheel reaches the end of its service life, throw the grinding wheel into the waste grinding wheel recycling box 29, replace the straight wall grinding wheel 20 and the spherical grinding wheel 21 with the oiling wheel 19, and repeat the above steps. Before the wiping roller 19 is replaced, the two drive ends of the oil box opening and closing cylinder 15 drive the two closed boxes 16 to open respectively. After the wiping roller is put back in its original position, the two drive ends of the oil box opening and closing cylinder 15 drive the two closed boxes 16 to close respectively, covering the wiping roller 19. Then the control system sprays oil according to the specified cycle. The oil inside the oil tank is drawn out through the sprayer and solenoid valve and then discharged into the oil nozzle 28. The oil is then sprayed onto the surface of the wiping roller 19 through the oil nozzle 28.

[0021] All standard parts used in this application can be purchased from the market, and can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment all adopt conventional models in the prior art. The installation methods between equipment are also the same as conventional installation methods in the prior art. For example, the two ends of shaft-shaped parts are connected by bearings, the connection position of valve components is provided with anti-leakage rubber strips, the outside of threaded rods or lead rods is provided with dust covers, and the equipment can be driven by either built-in batteries or external power supply. The control method is automatic control by a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art and is common knowledge in the field. Since this invention is mainly used to protect mechanical devices, this invention will not explain the control method and circuit connection in detail. The external controller mentioned in the specification can play a control role for the electrical components mentioned herein, and the external controller is a conventional known device.

[0022] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. Automatic grinding and measuring equipment for wheel inner hole, comprising an automatic grinding wheel replacement device (1), characterized in that: An automatic grinding wheel changing device (1) is fixedly connected to a mounting frame (10) on its top. Several grinding wheel frames (11) are fixedly connected to the inner side of the mounting frame (10). The storage area on the mounting frame (10) is divided into a straight-walled grinding wheel group (17) and a spherical grinding wheel group (18). The straight-walled grinding wheel group (17) is used to place and store straight-walled grinding wheels (20) on the grinding wheel frame (11). The spherical grinding wheel group (18) is used to place and store spherical grinding wheels (21) on the grinding wheel frame (11). A servo motor central control turntable (34) is fixedly connected to the top of the automatic grinding wheel changing device (1) and to the middle of the mounting frame (10). A grinding wheel lifting cylinder (30) is fixedly connected to the output end of the servo motor central control turntable (34). A grinding wheel lifting cylinder (30) is fixedly installed at the telescopic end of the grinding wheel lifting cylinder (30). The retractable cylinder (31) is fixedly connected to the retractable end of the grinding wheel retractable cylinder (31), and the two drive ends of the grinding wheel clamping cylinder (32) are fixedly connected to the second clamp (33). The top of the automatic grinding wheel changing device (1) and the right end opening of the mounting frame (10) are fixedly connected to the bracket (22). The inside of the bracket (22) is fixedly connected to the grinding wheel unloading lifting cylinder (23). The retractable end of the grinding wheel unloading lifting cylinder (23) is fixedly connected to the grinding wheel unloading retractable cylinder (24). The retractable end of the grinding wheel unloading retractable cylinder (24) is fixedly connected to the fixed frame (26). The top of the bracket (22) is fixedly connected to the grinding rod clamping cylinder (25). The two drive ends of the grinding rod clamping cylinder (25) are fixedly connected to the first clamp (27).

2. The apparatus of claim 1, wherein: The top of the automatic grinding wheel changing device (1) is fixedly connected to a protective cover (9), and a reset button light (12) is fixedly connected to the top of the protective cover (9) and to one side of the grinding wheel frame (11). A limit switch (13) is fixedly connected to the mounting frame (10) and to one side of the grinding wheel frame (11).

3. The automatic wheel hole polishing and measuring apparatus according to claim 1, characterized in that: A waste grinding wheel recycling box (29) is placed on top of the automatic grinding wheel replacement device (1) and at the left end opening of the mounting frame (10).

4. The automatic wheel hole polishing and measuring apparatus according to claim 1, characterized by: An oiling wheel (19) is placed inside the grinding wheel frame (11). A mounting frame (14) is fixedly connected to the top of the automatic grinding wheel changing device (1) and between the mounting frame (10) and the protective cover (9). An oil box opening and closing cylinder (15) is fixedly connected to one end of the mounting frame (14). A closed box (16) is fixedly connected to both drive ends of the oil box opening and closing cylinder (15). An oil nozzle (28) is fixedly connected to one side of the mounting frame (14). The input end of the oil nozzle (28) is connected to a solenoid valve and a sprayer installed on the top of the automatic grinding wheel changing device (1). One end of the sprayer extends into the oil tank. A maintenance and replenishment oil port is provided on the surface of the protective cover (9) on one side of the mounting frame (14).

5. The automatic wheel hole polishing and measuring apparatus according to claim 1, characterized by: The automatic grinding wheel changing device (1) is fixedly connected to a working platform (3) on one side. A dust collection device (2) is installed below the working platform (3). A small six-axis robot (4) is fixedly connected to the top of the working platform (3). A camera (6) is installed at one end of the small six-axis robot (4). A roughness detector (5) is installed at one end of the small six-axis robot (4) and on the side of the camera (6).

6. The automatic wheel hole polishing and measuring apparatus according to claim 1, characterized by: A large six-axis robot (7) is fixedly connected to one side of the automatic grinding wheel changing device (1), and a force control system (8) is installed on the large six-axis robot (7).

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