Crankshaft burr grinding machine

Abstract

The utility model relates to the technical field of crankshaft machining, and discloses a crankshaft burr grinding machine which comprises a machine frame, chucks are rotationally connected to the two sides of the machine frame respectively, a first motor is fixedly connected to the outer portion of one side of the machine frame, and rockers are rotationally connected to the tops of the chucks on the two sides respectively. Clamping blocks are slidably connected to the close sides of the chucks on the two sides, chucks are fixedly connected to the close sides of the clamping blocks on the two sides, a crankshaft is arranged between the chucks on the two sides, the clamping blocks are in threaded connection with the rocker, a detection assembly is arranged at the top of the rack, and a grinding wheel is arranged in the middle of the rack. According to the crankshaft grinding device, the clamping block can move in the chuck by rotating the rocker, then the position of the chuck is adjusted, the connecting rod journal can rotate with the central axis of the first motor as the rotating shaft, and therefore the situation that due to the fact that manual grinding errors are large, the crankshaft is excessively abraded, and the precision of the crankshaft is affected can be avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of crankshaft processing, in particular to a crankshaft burr grinding machine. Background Art

[0002] The crankshaft is an important component in the internal combustion engine. It can convert the up and down linear motion of the piston into the rotational motion of the engine. It is the key to the normal operation of the internal combustion engine, allowing the engine to generate power and drive the vehicle or other equipment. During the crankshaft processing, when there are many burrs on the crankshaft surface, there will be friction resistance when it contacts with other parts, resulting in increased energy loss and reduced engine efficiency. Therefore, the burrs on the crankshaft need to be polished clean to eliminate the impact of the burrs on the crankshaft.

[0003] However, during the use of the existing crankshaft burr grinding device, since the central axes of the crankshaft journal and the connecting rod journal on the crankshaft are not in the same straight line, and the existing burr grinding device can only drive the crankshaft to rotate along the crankshaft journal as the rotation axis after clamping the crankshaft, so when grinding the connecting rod journal, only manual grinding can be performed, which easily leads to excessive wear of some positions, and further causes the accuracy and quality of the crankshaft to be reduced. Therefore, a crankshaft burr grinding machine is proposed to solve the above problem. Utility Model Content

[0004] In order to make up for the above shortcomings, the utility model provides a crankshaft burr grinder, which aims to improve the problem that the existing burr grinding device can only drive the crankshaft to rotate along the crankshaft journal as the rotation axis after clamping the crankshaft, so the connecting rod journal can only be grinded manually, which easily leads to excessive wear of some parts of the crankshaft, thereby reducing the accuracy and quality of the crankshaft.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a crankshaft burr grinder comprises a frame, both sides of the frame are rotatably connected with chucks, the outside of one side of the frame is fixedly connected with a first motor, the output end of the first motor is fixedly connected to the middle part of one side of the chuck, the tops of the chucks on both sides are rotatably connected with rockers, the adjacent sides of the chucks on both sides are slidably connected with blocks, the adjacent sides of the blocks on both sides are fixedly connected with chucks, a crankshaft is arranged between the chucks on both sides, the block is threadedly connected to the rocker, the top of the rocker is threadedly connected with a second nut, a detection assembly is arranged on the top of the frame, and a grinding wheel is arranged in the middle of the frame.

[0006] As a further description of the above technical solution:

[0007] The adjacent sides of the two chucks are provided with sliding grooves, and the clamping blocks are located inside the sliding grooves.

[0008] As a further description of the above technical solution:

[0009] Detection components are provided on both sides of the frame, and the detection components include a laser rangefinder and a level ruler. A support rod is fixedly connected to the top of the frame, a support plate is provided in the middle of the support rod, a spring is provided at the bottom of the outer wall of the support rod, a first nut is threadedly connected to the top of the outer wall of the support rod, the level ruler is located in the middle of the top surface of the support plate, a slider is slidably connected to the bottom surface of the support plate, the laser rangefinder is located inside the slider, and the laser rangefinder is located directly above the crankshaft.

[0010] As a further description of the above technical solution:

[0011] The bottom surface of the support plate is fixedly connected with a slide rail, and the slider is slidably connected to the slide rail.

[0012] As a further description of the above technical solution:

[0013] A through hole is formed at the edge of the support plate, and the diameter of the support rod is smaller than the diameter of the through hole.

[0014] As a further description of the above technical solution:

[0015] A second motor is fixedly connected to the front side of one side of the frame, a threaded rod is fixedly connected to the output end of the second motor, the threaded rod is rotatably connected to the front side of the frame, a mounting seat is threadedly connected to the outer side of the threaded rod, an electric push rod is fixedly connected to the top side of the mounting seat, a mounting block is fixedly connected to the output end of the electric push rod, the mounting block and the mounting seat are slidably connected, a third motor is fixedly connected to one side of the mounting block, and the grinding wheel is fixedly connected to the output end of the third motor.

[0016] As a further description of the above technical solution:

[0017] The other side of the top of the mounting seat is fixedly connected with a pressing frame, and the top surface of the mounting block is slidably connected to the inside of the pressing frame.

[0018] As a further description of the above technical solution:

[0019] The bottom of the mounting seat is slidably connected with a slide bar, and the slide bar is fixedly connected to the middle and lower part of the front side of the frame.

[0020] The utility model has the following beneficial effects:

[0021] 1. In the utility model, the chuck can be driven to rotate by driving the motor, and the crankshaft journal can be rotated along the central axis of the first motor as the rotation axis, and the clamping block can be moved inside the chuck by turning the rocker, so that the position of the chuck on the chuck can be adjusted, and the central axis of the connecting rod journal can be coincident with the central axis of the first motor, and the connecting rod journal can be rotated along the central axis of the first motor as the rotation axis, thereby avoiding large manual grinding errors that lead to excessive wear of the crankshaft and affect the accuracy of the crankshaft.

[0022] 2. In the utility model, the laser rangefinder can be driven to move by pulling the slider, and the distance of the crankshaft journal or the connecting rod journal of the crankshaft can be measured at this time, so that the central axis of the crankshaft journal or the connecting rod journal can be coincident with the central axis of the clamping assembly, so that the crankshaft is in a horizontal state, thereby improving the grinding accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a three-dimensional structural schematic diagram of the crankshaft burr grinding machine proposed by the utility model;

[0024] Figure 2 This is a disassembled diagram of the chuck structure of the crankshaft burr grinding machine proposed by the utility model;

[0025] Figure 3 This is a structural disassembly diagram of the support plate portion of the crankshaft burr grinding machine proposed by the utility model;

[0026] Figure 4 This is a disassembled diagram of the grinding wheel structure of the crankshaft burr grinding machine proposed in the utility model.

[0027] Legend:

[0028] 1. Frame; 2. Grinding wheel; 3. Support rod; 4. Support plate; 5. Spring; 6. First nut; 7. Level; 8. Slide rail; 9. Slider; 10. Laser rangefinder; 11. Chuck; 12. Block; 13. Chuck; 14. Rocker; 15. Second nut; 16. First motor; 17. Second motor; 18. Threaded rod; 19. Mounting seat; 20. Electric push rod; 21. Mounting block; 22. Third motor; 23. Press frame; 24. Slide rod; 25. Slide groove; 26. Crankshaft. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the specification of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] Reference Figure 1 and Figure 2 The utility model provides an embodiment: a crankshaft burr grinder, comprising a frame 1, both sides of the frame 1 are rotatably connected with a chuck 11, the outside of one side of the frame 1 is fixedly connected with a first motor 16, the output end of the first motor 16 is fixedly connected to the middle of one side of a chuck 11, the tops of the chucks 11 on both sides are rotatably connected with a rocker 14, the adjacent sides of the chucks 11 on both sides are slidably connected with a clamping block 12, the adjacent sides of the clamping blocks 12 on both sides are fixedly connected with a chuck 13, a crankshaft 26 is arranged between the chucks 13 on both sides, the clamping block 12 is threadedly connected to the rocking arm 14, the top of the rocking arm 14 is threadedly connected with a second nut 15, a detection component is arranged on the top of the frame 1, and a grinding wheel 2 is arranged in the middle of the frame 1.

[0031] When installing the crankshaft 26, first open the chuck 13 to the maximum stroke, then insert the two sides of the crankshaft 26 into the two chucks 13, then use the chuck 13 to clamp the two sides of the crankshaft 26, then drive the first motor 16 to drive a chuck 11 to rotate, and then drive the crankshaft 26 to rotate. By rotating the rocker 14, the clamping block 12 and the chuck 13 can be driven to move on the chuck 11, and the position of the crankshaft 26 on the chuck 11 can be fine-tuned, so that the purpose of adjusting the horizontality of the crankshaft 26 can be achieved, and by moving the chuck 13 to the edge of the chuck 11, the connecting rod journal on the crankshaft 26 can also be moved to the middle of the frame 1, so that the crankshaft 26 journal and the connecting rod journal of the crankshaft 26 are continuously polished and deburred, thereby improving the practicality of the device, and avoiding the large manual polishing error that causes the crankshaft 26 to be excessively worn and thus affecting the accuracy of the crankshaft 26.

[0032] Reference Figure 2 A slide groove 25 is formed on adjacent sides of the two chucks 11 , and the clamping block 12 is located inside the slide groove 25 .

[0033] The slide groove 25 can provide installation space for the clamping block 12 .

[0034] Reference Figure 1 and Figure 3 , detection components are provided on both sides of the frame 1, and the detection components include a laser rangefinder 10 and a level 7. A support rod 3 is fixedly connected to the top of the frame 1, a support plate 4 is provided in the middle of the support rod 3, a spring 5 is provided at the bottom of the outer wall of the support rod 3, a first nut 6 is threadedly connected to the top of the outer wall of the support rod 3, the level 7 is in the middle of the top surface of the support plate 4, a slider 9 is slidably connected to the bottom surface of the support plate 4, the laser rangefinder 10 is inside the slider 9, and the laser rangefinder 10 is directly above the crankshaft 26. A slide rail 8 is fixedly connected to the bottom surface of the support plate 4, and the slider 9 is slidably connected to the slide rail 8. A through hole is opened at the edge of the support plate 4, and the diameter of the support rod 3 is smaller than the diameter of the through hole.

[0035] By pulling the slider 9 to move it on the slide rail 8, the laser rangefinder 10 can be aligned with both sides of the crankshaft 26. When the readings on the two laser rangefinders 10 are inconsistent, the crankshaft 26 is in a non-horizontal state. At this time, the clamping assembly can be adjusted to adjust the horizontality of the crankshaft 26, thereby avoiding excessive wear of some parts of the crankshaft 26 due to tilting, thereby reducing the quality of the crankshaft 26. By setting the diameter of the through hole to be larger than the diameter of the support rod 3, when adjusting the support plate 4 to be horizontal, it is possible to avoid jamming between the support plate 4 and the support rod 3.

[0036] Reference Figure 1 and Figure 4 A second motor 17 is fixedly connected to the front side of one side of the frame 1, and a threaded rod 18 is fixedly connected to the output end of the second motor 17. The threaded rod 18 is rotatably connected to the front side of the frame 1, and a mounting seat 19 is threadedly connected to the outer side of the threaded rod 18. An electric push rod 20 is fixedly connected to the top side of the mounting seat 19, and a mounting block 21 is fixedly connected to the output end of the electric push rod 20. The mounting block 21 is slidably connected to the mounting seat 19, and a third motor 22 is fixedly connected to one side of the mounting block 21, and the grinding wheel 2 is fixedly connected to the output end of the third motor 22.

[0037] The grinding wheel 2 can be driven to rotate by driving the third motor 22, and the threaded rod 18 can be driven to rotate by driving the second motor 17. The threaded rod 18 can be used to move the mounting seat 19 and the grinding wheel 2. Then, the mounting block 21 can be pushed out by driving the electric push rod 20 to extend the output end. At this time, the grinding wheel 2 can be brought close to the crankshaft 26, so that different positions on the crankshaft 26 can be ground, avoiding the phenomenon of manual adjustment, thereby improving the deburring efficiency.

[0038] Reference Figure 4 The other side of the top of the mounting seat 19 is fixedly connected with a press frame 23, and the top surface of the mounting block 21 is slidably connected to the inside of the press frame 23. The bottom of the mounting seat 19 is slidably connected with a slide bar 24, which is fixedly connected to the middle and lower part of the front side of the frame 1.

[0039] The moving direction of the mounting block 21 can be guided by the pressing frame 23 , and the moving direction of the mounting seat 19 can be guided by the sliding rod 24 .

[0040] Working principle: When in use, first open the chuck 13 to the maximum stroke, then move the crankshaft 26 to be polished and deburred to the middle of the frame 1, then clamp the two sides of the crankshaft 26 in the middle of the two chucks 13 respectively, then drive the chuck 13 to clamp the two sides of the crankshaft 26, then observe the level ruler 7, rotate the first nut 6 to press down one side of the support plate 4, then adjust the level of the support plate 4, pull the slider 9 to move it on the slide rail 8, and make the laser rangefinder 1 0 is aligned with both sides of the crankshaft 26. At this time, the heights of both sides of the crankshaft 26 can be known. When the readings on the two laser rangefinders 10 are different, it means that the crankshaft 26 is not in a horizontal state. At this time, the rocker 14 is rotated, and the block 12 and the chuck 13 are moved by the rocker 14. At this time, the positions of both sides of the crankshaft 26 on the two chucks 11 can be fine-tuned, so that the central axis of the crankshaft 26 journal on the crankshaft 26 can be in a horizontal state and coincide with the central axis of the first motor 16. When the crankshaft 26 needs to be adjusted, When the connecting rod journal on the crankshaft 26 is deburred, the rocker 14 is rotated to drive the chuck 13 to move to the edge of the chuck 11, so that the central axis of the connecting rod journal on the crankshaft 26 can coincide with the central axis of the first motor 16. The laser rangefinder 10 can be moved to the connecting rod journal to detect it. When the readings are different, the rocker 14 can be rotated to fine-tune it. Therefore, by moving the laser rangefinder 10, the crankshaft 26 journal and the connecting rod journal on the crankshaft 26 can be detected to avoid the crankshaft 26. The position offset causes excessive wear of part of the crankshaft 26, and when grinding and deburring, the third motor 22 is first driven to drive the grinding wheel 2 to rotate, and then the second motor 17 is driven to drive the threaded rod 18 to rotate. The threaded rod 18 can be used to drive the mounting seat 19 to move. At this time, the position of the grinding wheel 2 can be adjusted, and then the electric push rod 20 is driven to extend out of the output end. At this time, the mounting block 21 can be pushed out, so that the grinding wheel 2 can be brought close to the crankshaft 26, thereby achieving grinding and deburring of the crankshaft 26.

[0041] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A crankshaft burr grinding machine, comprising a frame (1), characterized in that: The frame (1) is rotatably connected to a chuck (11) on both sides, a first motor (16) is fixedly connected to the outside of one side of the frame (1), an output end of the first motor (16) is fixedly connected to the middle of one side of the chuck (11), the tops of the chucks (11) on both sides are rotatably connected to rocking arms (14), the adjacent sides of the chucks (11) on both sides are slidably connected to clamping blocks (12), the adjacent sides of the clamping blocks (12) on both sides are fixedly connected to chucks (13), a crankshaft (26) is arranged between the chucks (13) on both sides, the clamping block (12) is threadedly connected to the rocking arm (14), the top of the rocking arm (14) is threadedly connected to a second nut (15), a detection assembly is arranged on the top of the frame (1), and a grinding wheel (2) is arranged in the middle of the frame (1).

2. The crankshaft burr grinding machine according to claim 1, characterized in that: The adjacent sides of the two chucks (11) are each provided with a slide groove (25), and the clamping block (12) is located inside the slide groove (25).

3. The crankshaft burr grinding machine according to claim 1, characterized in that: Detection components are provided on both sides of the frame (1), and the detection components include a laser rangefinder (10) and a level (7). A support rod (3) is fixedly connected to the top of the frame (1), a support plate (4) is provided in the middle of the support rod (3), a spring (5) is provided at the bottom of the outer wall of the support rod (3), a first nut (6) is threadedly connected to the top of the outer wall of the support rod (3), the level (7) is located in the middle of the top surface of the support plate (4), a slider (9) is slidably connected to the bottom surface of the support plate (4), the laser rangefinder (10) is located inside the slider (9), and the laser rangefinder (10) is located directly above the crankshaft (26).

4. The crankshaft burr grinding machine according to claim 3, characterized in that: The bottom surface of the support plate (4) is fixedly connected with a slide rail (8), and the sliding block (9) is slidably connected to the slide rail (8).

5. The crankshaft burr grinding machine according to claim 3, characterized in that: A through hole is provided at the edge of the support plate (4), and the diameter of the support rod (3) is smaller than the diameter of the through hole.

6. The crankshaft burr grinding machine according to claim 1, characterized in that: A second motor (17) is fixedly connected to the front side of one side of the frame (1); a threaded rod (18) is fixedly connected to the output end of the second motor (17); the threaded rod (18) is rotatably connected to the front side of the frame (1); a mounting seat (19) is threadedly connected to the outer side of the threaded rod (18); an electric push rod (20) is fixedly connected to the top side of the mounting seat (19); a mounting block (21) is fixedly connected to the output end of the electric push rod (20); the mounting block (21) is slidably connected to the mounting seat (19); a third motor (22) is fixedly connected to one side of the mounting block (21); and the grinding wheel (2) is fixedly connected to the output end of the third motor (22).

7. The crankshaft burr grinding machine according to claim 6, characterized in that: The other side of the top of the mounting seat (19) is fixedly connected to a pressing frame (23), and the top surface of the mounting block (21) is slidably connected to the inside of the pressing frame (23).

8. The crankshaft burr grinding machine according to claim 6, characterized in that: The bottom of the mounting seat (19) is slidably connected to a slide bar (24), and the slide bar (24) is fixedly connected to the middle and lower part of the front side of the frame (1).

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