A grinding device for manufacturing cranks

Abstract

This utility model discloses a grinding device for crank manufacturing, including a crank grinding box and a vacuum cleaner. A door is hinged to one side of the crank grinding box. A grinding adjustment component is located on the crank grinding box. The grinding adjustment component includes a stepper motor, a rotating chassis, multiple synchronous belts, and a rotating shaft. The stepper motor drives the rotating chassis to rotate horizontally, the electric telescopic rod controls the vertical lifting and lowering of the grinding roller, the drive motor drives the moving slide plate to move laterally, and the stepper motor achieves the tilting of the grinding roller angle, forming a four-axis linkage adjustment. It can accurately align the crank for all-round grinding. Especially for the two sides of the crank that are difficult to grind due to the obstruction of the journal in traditional devices, by rotating the crank to a suitable angle and tilting the grinding roller, the grinding blind area is eliminated, avoiding the problem of insufficient grinding caused by the limited angle, and further improving the grinding quality of the crank.

Description

Technical Field

[0001] This utility model relates to the field of grinding equipment technology, and in particular to a grinding device for manufacturing cranks. Background Technology

[0002] The crankshaft is a part of the crankshaft. In the manufacturing process of the crankshaft, grinding is an indispensable key step. As a core component in mechanical equipment such as diesel engines, the surface quality of the crankshaft is directly related to the operating efficiency, stability and service life of the equipment.

[0003] Existing mechanical grinding devices are difficult to adapt to the multi-directional and multi-angle grinding requirements of cranks during use. They can only grind a single plane or a fixed angle part of the crank. When grinding both sides of the crank, the journal will obstruct the grinding, making it difficult to grind one side of the crank, which can easily lead to insufficient grinding and affect the grinding quality of the crank. Therefore, we propose a grinding device for crank manufacturing. Utility Model Content

[0004] The purpose of this utility model is to at least solve one of the technical problems existing in the prior art, and to provide a grinding device for crank manufacturing. This device can solve the problem that existing mechanical grinding devices are difficult to adapt to the multi-directional and multi-angle grinding needs of cranks during use. They can only grind a single plane or a fixed angle part of the crank. When grinding both sides of the crank, the journal will obstruct the grinding, making it difficult to grind one side of the crank, which can easily lead to insufficient grinding and affect the grinding quality of the crank.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a grinding device for manufacturing crankshafts, comprising:

[0006] The crank polishing box and the vacuum cleaner have a door hinged to one side.

[0007] Grinding adjustment component, which is located on the crank grinding box;

[0008] The grinding adjustment assembly includes a stepper motor, a rotating chassis, multiple synchronous belts, and a rotating shaft. The rotating chassis is rotatably connected to the inner bottom wall of the crank grinding box. The rotating shaft is fixedly connected to the bottom of the rotating chassis, and the bottom end of the rotating shaft extends rotatably to the bottom of the crank grinding box. The stepper motor is fixedly installed on the side of the crank grinding box near the vacuum cleaner. Synchronous pulleys are fixedly sleeved on the output end of the stepper motor and the outer surface of the rotating shaft. Multiple synchronous belts are driven and sleeved on two synchronous pulleys. A crank clamping structure is provided on the top of the rotating chassis. Two electric telescopic rods are fixedly installed on the top of the crank grinding box. The telescopic ends of the two electric telescopic rods slide into the interior of the crank grinding box and are fixedly connected to a lifting adjustment frame.

[0009] Preferably, the grinding adjustment assembly further includes a drive motor, a threaded rod, a movable slide plate, a mounting bracket, and a rotating plate. The drive motor is fixedly mounted on one side of the lifting adjustment bracket, and its output end extends rotatably into the interior of the lifting adjustment bracket and is fixedly connected to the threaded rod. The threaded rod is rotatably connected to the interior of the lifting adjustment bracket. The movable slide plate is threaded onto the outer surface of the threaded rod and is slidably connected to the inner top wall of the lifting adjustment bracket. The mounting bracket is fixedly connected to the bottom of the movable slide plate, and the rotating plate is rotatably connected to the interior of the mounting bracket. A second stepper motor is fixedly mounted on one side of the mounting bracket, and its output end extends rotatably into the interior of the mounting bracket and is fixedly connected to the rotating plate. A grinding motor is fixedly mounted on the top of the rotating plate, and a grinding roller is fixedly mounted on the output end of the grinding motor via a flange.

[0010] Preferably, the crank clamping structure includes two fixed plates, two electric push rods, and two arc-shaped clamping plates. The two fixed plates are fixedly connected to the top of the rotating chassis, and the two electric push rods are fixedly installed on the corresponding fixed plates. The telescopic ends of the two electric push rods slide through the corresponding fixed plates and are fixedly installed with the corresponding arc-shaped clamping plates.

[0011] Preferably, the lifting adjustment frame has two limiting rods fixedly connected inside, and the movable slide plate is slidably sleeved on the outer surface of the two limiting rods.

[0012] Preferably, dust collection boxes are fixedly connected to both sides of the inner wall of the crank grinding box, and dust collection ports are opened on the opposite sides of the two dust collection boxes. Both dust collection boxes are connected to the interior of the vacuum cleaner through pipes.

[0013] Preferably, the lifting and adjusting frame has a "C" shaped structure.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: This grinding device for crank manufacturing uses a stepper motor to drive the rotating chassis to rotate horizontally, an electric telescopic rod to control the vertical lifting and lowering of the grinding roller, a drive motor to drive the moving slide plate to move laterally, and a stepper motor to achieve the tilting of the grinding roller angle, forming a four-axis linkage adjustment. It can accurately align the crank for all-round grinding. In particular, for the two sides of the crank that are difficult to grind due to the obstruction of the journal in traditional devices, by rotating the crank to a suitable angle and tilting the grinding roller, the grinding blind area is eliminated, avoiding the problem of insufficient grinding caused by the limited angle, and further improving the grinding quality of the crank. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2This is a schematic cross-sectional view of the crank grinding box of this utility model;

[0018] Figure 3 This is a schematic diagram of the mounting bracket structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the cross-sectional structure of the rotating chassis of this utility model.

[0020] Reference numerals: 1. Crank grinding box; 2. Vacuum cleaner; 3. Dust collection box; 4. Electric telescopic rod; 5. Rotating chassis; 6. Lifting and adjusting frame; 7. Stepper motor one; 8. Synchronous belt; 9. Synchronous pulley; 10. Rotating shaft; 11. Grinding roller; 12. Drive motor; 13. Moving slide plate; 14. Mounting frame; 15. Rotating plate; 16. Grinding motor; 17. Stepper motor two; 18. Limiting rod; 19. Electric push rod; 20. Fixing plate; 21. Arc-shaped clamping plate; 22. Threaded rod. Detailed Implementation

[0021] This section will describe in detail the specific embodiments of this utility model. Preferred embodiments of this utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, enabling a person to intuitively and vividly understand each technical feature and overall technical solution of this utility model. However, they should not be construed as limiting the scope of protection of this utility model. In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing this utility model 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. Therefore, they should not be construed as limiting this utility model.

[0022] In the description of this utility model, terms such as greater than, less than, and exceeding are understood to exclude the stated number, while terms such as above, below, and within are understood to include the stated number. The use of "first" and "second" in the description is for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, the quantity of indicated technical features, or the order of the indicated technical features. In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installing," and "connecting" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of these terms in this utility model based on the specific content of the technical solution.

[0023] Please see Figure 1-4 This utility model provides a technical solution: a grinding device for manufacturing cranks, comprising:

[0024] The crank grinding box 1 and the vacuum cleaner 2 are provided. The crank grinding box 1 has a door hinged to one side.

[0025] Grinding adjustment component, which is located on crank grinding box 1;

[0026] The grinding adjustment assembly includes a stepper motor 7, a rotating chassis 5, multiple synchronous belts 8, and a rotating shaft 10. The rotating chassis 5 is rotatably connected to the inner bottom wall of the crank grinding box 1. The rotating shaft 10 is fixedly connected to the bottom of the rotating chassis 5, and the bottom end of the rotating shaft 10 extends rotatably to the bottom of the crank grinding box 1. The stepper motor 7 is fixedly installed on the side of the crank grinding box 1 near the vacuum cleaner 2. Synchronous pulleys 9 are fixedly sleeved on both the output end of the stepper motor 7 and the outer surface of the rotating shaft 10. Multiple synchronous belts 8 are driven and sleeved on two synchronous pulleys 9. A crank clamping structure is provided on the top of the rotating chassis 5. Two electric telescopic rods 4 are fixedly installed on the top of the crank grinding box 1. The telescopic ends of the two electric telescopic rods 4 slide into the interior of the crank grinding box 1 and are fixedly connected to a lifting adjustment frame 6. The lifting adjustment frame 6 has a "C" shaped structure.

[0027] The grinding adjustment assembly also includes a drive motor 12, a threaded rod 22, a movable slide plate 13, a mounting bracket 14, and a rotating plate 15. The drive motor 12 is fixedly mounted on one side of the lifting adjustment bracket 6. The output end of the drive motor 12 extends rotatably into the interior of the lifting adjustment bracket 6 and is fixedly connected to the threaded rod 22. The threaded rod 22 is rotatably connected to the interior of the lifting adjustment bracket 6. The movable slide plate 13 is threaded onto the outer surface of the threaded rod 22 and is slidably connected to the inner top wall of the lifting adjustment bracket 6. The mounting bracket 14 is fixedly connected to the bottom of the movable slide plate 13. The rotating plate 15 is rotatably connected to the interior of the mounting bracket 14. A second stepper motor 17 is fixedly mounted on one side of the mounting bracket 14. The output end of the second stepper motor 17 extends rotatably into the interior of the mounting bracket 14 and is fixedly connected to the rotating plate 15. A grinding motor 16 is fixedly mounted on the top of the rotating plate 15. A grinding roller 11 is fixedly mounted on the output end of the grinding motor 16 through a flange.

[0028] The crank clamping structure includes two fixed plates 20, two electric push rods 19 and two arc-shaped clamping plates 21. The two fixed plates 20 are fixedly connected to the top of the rotating chassis 5. The two electric push rods 19 are fixedly installed on the corresponding fixed plates 20. The telescopic ends of the two electric push rods 19 slide through the corresponding fixed plates 20 and are fixedly installed with the corresponding arc-shaped clamping plates 21.

[0029] The lifting and adjusting frame 6 has two fixed connections inside, and the movable slide plate 13 is slidably sleeved on the outer surface of the two limit rods 18.

[0030] Dust collection boxes 3 are fixedly connected to both sides of the inner wall of the crank grinding box 1. Dust collection ports are opened on the opposite sides of the two dust collection boxes 3. The two dust collection boxes 3 are connected to the inside of the vacuum cleaner 2 through pipes.

[0031] Furthermore, when using this device, the crank grinding box 1 is opened through the box door, the crank to be processed is placed between the two arc-shaped clamping plates 21 on the rotating chassis 5, the electric push rod 19 is started, and its telescopic end pushes the arc-shaped clamping plates 21 to move towards each other until the journal on the crank is firmly clamped. The arc-shaped clamping plates 21 can be bolted to the electric push rod 19, so that the arc-shaped clamping plates 21 can be replaced, thereby adapting to crank journals of different sizes and specifications.

[0032] When the crank needs to be adjusted horizontally during grinding, the stepper motor 7 is started, and its output drives the corresponding synchronous wheel 9 to rotate. The power is transmitted to the rotating shaft 10 through the synchronous belt 8, which in turn causes the rotating base 5 to rotate horizontally on the inner bottom wall of the crank grinding box 1. The rotation angle of the rotating base 5 will not exceed 180 degrees. The rotation of the rotating base 5 drives the crank clamped on it to rotate synchronously, so that the crank can be adjusted horizontally during grinding, so that the grinding roller 11 can grind different positions of the crank.

[0033] Start the electric telescopic rod 4, which drives the lifting adjustment frame 6 to rise and fall vertically. Since the mounting frame 14, the rotating plate 15, and the grinding roller 11 are all mounted on the lifting adjustment frame 6, the position of the grinding roller 11 can be adjusted vertically to meet the grinding requirements at different heights of the crank. Start the drive motor 12, whose output end drives the threaded rod 22 to rotate. The rotation of the threaded rod 22 will cause the moving slide plate 13 to move horizontally under the guidance of the two limit rods 18, thereby driving the grinding roller 11 mounted at the bottom of the moving slide plate 13 to achieve lateral position adjustment and further expand the grinding range.

[0034] When the stepper motor 17 is started, its output end drives the rotating plate 15 to rotate within the mounting bracket 14, thereby enabling the grinding motor 16 and grinding roller 11 mounted on the rotating plate 15 to achieve angle tilt adjustment. This design allows the grinding roller 11 to grind the complex curved surface of the crank at different angles, improving the adaptability of the device to different parts of the crank. The grinding roller 11 can be mounted on the output end of the grinding motor 16 using a flange, which facilitates the replacement of the grinding roller 11 and makes it suitable for different cranks.

[0035] During the polishing process, the vacuum cleaner 2 is started and connected to the dust collection box 3 through a pipe, creating a negative pressure at the suction port of the dust collection box 3. The dust generated during polishing is sucked into the dust collection box 3 under the action of negative pressure and then enters the vacuum cleaner 2 through the pipe for collection and treatment. This effectively reduces the dust concentration in the crank polishing box 1, improves the working environment, and avoids the impact of dust on the equipment and the health of operators.

[0036] The four-axis linkage adjustment is achieved by using stepper motor 7 to drive the rotating chassis 5 to rotate horizontally, electric telescopic rod 4 to control the vertical lifting and lowering of the grinding roller 11, drive motor 12 to drive the moving slide plate 13 to move laterally, and stepper motor 17 to achieve the tilting of the grinding roller 11. This allows for precise alignment of the crank for all-round grinding. In particular, for the two sides of the crank that are difficult to grind due to the obstruction of the journal in traditional devices, by rotating the crank to the appropriate angle and tilting the grinding roller 11, the grinding blind spot is eliminated, avoiding the problem of insufficient grinding caused by the limited angle, and further improving the grinding quality of the crank.

[0037] Structural Description: Crank Grinding Box 1: Serves as the main space for grinding operations, providing a closed environment to reduce dust diffusion and protect the safety of operators and equipment;

[0038] Vacuum cleaner 2: Used to collect dust generated during the polishing process, keep the working environment clean, and reduce the impact of dust on the equipment and the health of operators. It is an existing device and can be referenced in patent: CN219885252U.

[0039] Electric telescopic rod 4: It is fixedly installed on the top of the crank grinding box 1. The telescopic end slides into the interior of the crank grinding box 1 and is fixedly connected to the lifting adjustment frame 6, which is used to adjust the position of the grinding roller 11 in the vertical direction.

[0040] Rotating chassis 5: Rotatably connected to the inner bottom wall of the crank grinding box 1, used to support and rotate the crank to be processed, so as to realize the angle adjustment of the crank in the horizontal direction;

[0041] Lifting and adjusting frame 6: It has a "C" shaped structure and is fixedly connected to the telescopic end of the electric telescopic rod 4. It is used to support and adjust the height of the grinding roller 11, and also serves as the mounting base for other grinding and adjusting components.

[0042] Stepper motor 7: It is fixedly installed on the side of the crank grinding box 1 near the vacuum cleaner 2. Its output end is connected to the rotating shaft 10 through the synchronous pulley 9 and the synchronous belt 8 to drive the rotation of the rotating chassis 5.

[0043] Synchronous belt 8: The transmission belt is sleeved on two synchronous pulleys 9 and is used to transmit the power of the stepper motor 7 to the rotating shaft 10 to realize the rotation of the rotating chassis 5.

[0044] Synchronous pulley 9: It is fixedly sleeved on the output end of stepper motor 7 and the outer surface of rotating shaft 10, and cooperates with synchronous belt 8 to realize power transmission;

[0045] Rotating shaft 10: It is fixedly connected to the bottom of the rotating chassis 5, and its bottom end extends to the bottom of the crank grinding box 1. It cooperates with the synchronous pulley 9 and the synchronous belt 8 to realize the rotation drive of the rotating chassis 5.

[0046] Grinding roller 11: It is fixedly installed at the output end of grinding motor 16 via a flange and is used to perform grinding operations on crank.

[0047] Drive motor 12: It is fixedly installed on one side of the lifting adjustment frame 6, and its output end is fixedly connected to the threaded rod 22. It is used to drive the horizontal movement of the movable slide plate 13.

[0048] The movable slide plate 13 is threaded onto the outer surface of the threaded rod 22 and is slidably connected to the inner top wall of the lifting adjustment frame 6. It is used to drive the grinding roller 11 to achieve lateral position adjustment.

[0049] Mounting bracket 14: Fixedly connected to the bottom of the movable slide plate 13, used to support and mount the rotating plate 15, the grinding motor 16 and the grinding roller 11;

[0050] Rotating plate 15: Rotatably connected inside the mounting bracket 14, used to adjust the angle of the grinding roller 11 to adapt to the complex curved surface grinding of the crank.

[0051] Grinding motor 16: It is fixedly installed on the top of the rotating plate 15, and its output end is connected to the grinding roller 11 through a flange to drive the rotation of the grinding roller 11.

[0052] Stepper motor 2 17: It is fixedly installed on one side of the mounting bracket 14, and its output end is fixedly connected to the rotating plate 15. It is used to drive the rotation of the rotating plate 15 to realize the angle tilt adjustment of the grinding roller 11.

[0053] Limiting rod 18: It is fixedly connected inside the lifting adjustment frame 6. The movable slide plate 13 is slidably sleeved on the outer surface of the two limiting rods 18, which is used to guide and limit the movement trajectory of the movable slide plate 13.

[0054] Electric push rod 19: It is fixedly installed on the fixed plate 20, and its telescopic end slides through the fixed plate 20 and is fixedly installed with the arc-shaped clamping plate 21. It is used to push the arc-shaped clamping plate 21 to move towards each other and clamp the crank to be processed.

[0055] Fixed plate 20: Fixedly connected to the top of the rotating chassis 5, used to support and install the electric push rod 19;

[0056] Arc-shaped clamping plate 21: It is fixedly installed with the telescopic end of the electric push rod 19 and is used to clamp the crank to be processed. It can also be bolted to the electric push rod 19 for easy replacement to adapt to crank journals of different sizes and specifications.

[0057] Threaded rod 22: Rotatably connected inside the lifting adjustment frame 6, and fixedly connected to the output end of the drive motor 12, used to drive the horizontal movement of the moving slide plate 13.

[0058] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A grinding device for manufacturing crankshafts, characterized in that, include: A crank polishing box (1) and a vacuum cleaner (2), with a door hinged on one side of the crank polishing box (1); Grinding adjustment component, the grinding adjustment component is located on the crank grinding box (1); The grinding adjustment assembly includes a stepper motor (7), a rotating chassis (5), multiple synchronous belts (8) and a rotating shaft (10). The rotating chassis (5) is rotatably connected to the inner bottom wall of the crank grinding box (1), and the rotating shaft (10) is fixedly connected to the bottom of the rotating chassis (5). The bottom end of the rotating shaft (10) extends rotatably to the bottom of the crank grinding box (1). Among them, stepper motor 1 (7) is fixedly installed on the side of the crank grinding box (1) near the vacuum cleaner (2). The output end of stepper motor 1 (7) and the outer surface of the rotating shaft (10) are both fixedly fitted with synchronous pulleys (9). Multiple synchronous belts (8) are all driven and fitted on the two synchronous pulleys (9). The top of the rotating chassis (5) is provided with a crank clamping structure. Two electric telescopic rods (4) are fixedly installed on the top of the crank grinding box (1). The telescopic ends of the two electric telescopic rods (4) slide into the interior of the crank grinding box (1) and are fixedly connected to the lifting adjustment frame (6).

2. The grinding device for manufacturing crankshafts according to claim 1, characterized in that: The grinding adjustment assembly also includes a drive motor (12), a threaded rod (22), a movable slide plate (13), a mounting bracket (14), and a rotating plate (15). The drive motor (12) is fixedly installed on one side of the lifting adjustment frame (6). The output end of the drive motor (12) extends into the interior of the lifting adjustment frame (6) and is fixedly connected to the threaded rod (22). The threaded rod (22) is rotatably connected to the interior of the lifting adjustment frame (6). The movable slide plate (13) is threaded onto the outer surface of the threaded rod (22). Among them, the movable slide plate (13) is slidably connected to the inner top wall of the lifting adjustment frame (6), the mounting frame (14) is fixedly connected to the bottom of the movable slide plate (13), the rotating plate (15) is rotatably connected to the inside of the mounting frame (14), a stepper motor (17) is fixedly installed on one side of the mounting frame (14), the output end of the stepper motor (17) rotates and extends into the inside of the mounting frame (14) and is fixedly connected to the rotating plate (15), a grinding motor (16) is fixedly installed on the top of the rotating plate (15), and a grinding roller (11) is fixedly installed on the output end of the grinding motor (16) through a flange.

3. A grinding device for manufacturing crankshafts according to claim 1 or 2, characterized in that: The crank clamping structure includes two fixed plates (20), two electric push rods (19) and two arc-shaped clamping plates (21). The two fixed plates (20) are fixedly connected to the top of the rotating chassis (5), and the two electric push rods (19) are fixedly installed on the corresponding fixed plates (20). The telescopic ends of the two electric push rods (19) slide through the corresponding fixed plates (20) and are fixedly installed with the corresponding arc-shaped clamping plates (21).

4. The grinding device for manufacturing crankshafts according to claim 2, characterized in that: The lifting adjustment frame (6) has two fixedly connected limit rods (18) inside, and the movable slide plate (13) is slidably sleeved on the outer surface of the two limit rods (18).

5. A grinding device for manufacturing crankshafts according to claim 1 or 2, characterized in that: The inner walls of the crank grinding box (1) are fixedly connected to dust collection boxes (3), and the opposite sides of the two dust collection boxes (3) are provided with dust collection ports. The two dust collection boxes (3) are connected to the inside of the vacuum cleaner (2) through pipes.

6. The grinding device for manufacturing crankshafts according to claim 1, characterized in that: The lifting and adjusting frame (6) has a "C" shaped structure.

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