Crankshaft multi-part descaling equipment

Abstract

The utility model discloses a crankshaft multi-part descaling device which comprises a bottom plate, a buffing mechanism is arranged at the position, close to the front side, of the top of the bottom plate, a supporting mechanism is arranged at the position, close to the middle, of the top of the bottom plate, and the buffing mechanism comprises a U-shaped frame. A connecting shaft is fixedly connected to the position, close to the top, between the inner surface walls of the two sides of the U-shaped frame. The servo motor is started to drive the three-jaw chuck to rotate, the effect of driving the crankshaft to rotate is achieved, in the rotating process of the crankshaft, the surfaces of a crankshaft journal, a connecting rod journal and a balance weight are each pressed with a grinding rod, and in the rotating process, the independent grinding rods can be tightly attached to different parts of the surface of the crankshaft and rub against the different parts of the surface of the crankshaft; the surface scale of different parts of the crankshaft can be removed in the friction process, the whole structure is simple, the use cost is low, the scale removing effect is high in pertinence, and the effect is good.

Description

Technical Field

[0001] The utility model relates to the technical field of crankshaft processing, and particularly relates to a device for removing oxide skin from multiple parts of a crankshaft. Background Art

[0002] During the production process of a crankshaft, the presence of oxide skin is a common and serious problem that affects the quality of the crankshaft. The formation of oxide skin is mainly due to the reaction between the surface of the crankshaft and oxygen in the air during the high-temperature forging process, resulting in an oxide layer. These oxide skins not only affect the appearance quality of the crankshaft but may also cause rough and uneven surfaces on the crankshaft, and even quality problems such as cracks, thereby affecting the service life and performance of the crankshaft.

[0003] Although there are devices for removing oxide skin from shaft parts on the market currently, due to the special and irregular shape of the crankshaft, traditional devices can often only process some areas of the crankshaft, making it difficult to completely remove the oxide skin, resulting in poor oxide skin removal effect. In addition, existing technical solutions are usually inefficient, complex to operate, and have certain safety hazards, unable to meet the increasing market demand for the surface quality requirements of crankshafts. Summary of the Utility Model

[0004] In order to solve the problem that due to the special and irregular shape of the crankshaft, the oxide skin removal devices on the market can often only process some areas of the crankshaft, and the oxide skin removal effect needs to be improved; the purpose of the utility model is to provide a device for removing oxide skin from multiple parts of a crankshaft.

[0005] To solve the above technical problems, the utility model adopts the following technical scheme: A device for removing oxide skin from multiple parts of a crankshaft, including a bottom plate. A grinding mechanism is arranged at a position near the front side of the top of the bottom plate, and a support mechanism is arranged at a position near the middle of the top of the bottom plate. The grinding mechanism includes a U-shaped frame. A connecting shaft is fixedly connected between the inner surfaces of the two sides of the U-shaped frame near the top. A plurality of bearings are equidistantly installed on the outer surface of the connecting shaft, and a grinding rod is fixedly installed on the surface of each bearing.

[0006] Preferably, a fixing frame is fixedly connected to the top of the bottom plate near one side edge. A three-jaw chuck is rotatably connected to the outer surface of one side of the fixing frame.

[0007] Preferably, a servo motor is installed at a position near the top of the outer surface of the other side of the fixing frame. The output end of the servo motor penetrates through the outer surface of the fixing frame and extends to the other side. The output end of the servo motor is fixedly connected to the center of the outer surface of one side of the three-jaw chuck.

[0008] Preferably, a cylinder is installed at a position near the other side edge of the top of the bottom plate. A movable frame is fixedly installed at the telescopic end of the cylinder. The movable frame is slidably installed on the top of the bottom plate.

[0009] Preferably, a rotating shaft is rotatably connected to a position near the top of one outer surface of the movable frame, and a chuck is fixedly connected to one end of the rotating shaft.

[0010] Preferably, the support mechanism includes an electric push rod, which is installed at a position near the middle of the top of the bottom plate. The telescopic end of the electric push rod is fixedly connected to a mounting frame. A support shaft is rotatably connected between the inner walls of the mounting frame. A roller is rotatably connected to the outer surface of the support shaft. The roller is located below a plurality of grinding rods. Limiting telescopic rods are symmetrically installed between the bottom of the mounting frame and the top of the bottom plate.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0012] Starting the servo motor to drive the three-jaw chuck to rotate has the effect of driving the crankshaft to rotate. During the rotation of the crankshaft, a grinding rod is pressed on the surfaces of the crankshaft journal, connecting rod journal, and balance weight. And during the rotation process, the independent grinding rod will closely adhere to different parts of the crankshaft surface and generate friction. During the friction between the two, the scale on different parts of the crankshaft surface can be removed. The overall structure is simple, the use cost is low, the effect of removing scale is more targeted, and the effect is good.

[0013] During the removal of the crankshaft, start the electric push rod to drive the mounting frame to move upward. At this time, the mounting frame will drive the roller to gradually rise and lift all the grinding rods so that they are separated from the crankshaft surface. After the new crankshaft is fixed, then drive the roller to descend through the electric push rod so that the grinding rods are re-attached to the crankshaft surface. This design enables the grinding rods not to affect the overall operation during the disassembly, installation, and replacement of the crankshaft, improving the convenience during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0015] Figure 1 It is a schematic structural diagram of the present utility model.

[0016] Figure 2 It is an expanded schematic diagram of the present utility model.

[0017] Figure 3 It is a partial structural schematic diagram of the present utility model.

[0018] Figure 4This is a schematic structural diagram of the skin grinding mechanism in the present utility model.

[0019] In the figure: 1, bottom plate; 2, fixed frame; 21, three-jaw chuck; 22, servo motor; 3, cylinder; 31, movable frame; 32, rotating shaft; 33, chuck; 4, skin grinding mechanism; 401, U-shaped frame; 402, connecting shaft; 403, bearing; 404, grinding rod; 5, support mechanism; 501, electric push rod; 502, mounting frame; 503, support shaft; 504, rotating roller; 505, limit telescopic rod. Specific embodiments

[0020] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0021] Embodiment: As Figures 1-4 shown, the present utility model provides a multi-site deoxidized skin equipment for crankshafts, including a bottom plate 1. A skin grinding mechanism 4 is arranged at a position near the front side of the top of the bottom plate 1, and a support mechanism 5 is arranged at a position near the middle of the top of the bottom plate 1. The skin grinding mechanism 4 includes a U-shaped frame 401. A connecting shaft 402 is fixedly connected between the inner surfaces of both sides of the U-shaped frame 401 near the top. A plurality of bearings 403 are equidistantly installed on the outer surface of the connecting shaft 402, and a grinding rod 404 is fixedly installed on the surface of each bearing 403.

[0022] Through the above technical solution, the number of grinding rods 404 is different and is set according to the shape and structure of different crankshafts, and the contact position with the surface of the crankshaft is strengthened with diamond material. The connecting shaft 402 between the inner walls of the U-shaped frame 401 is rotationally connected through the bearing 403 and the grinding rod 404. Therefore, all the grinding rods 404 rotate around the connecting shaft 402 as the center. The grinding rod 404 is in a backward inclined state during the working state and will press backward on different positions of the surface of the crankshaft under the action of gravity. During use, when the crankshaft rotates, the surfaces of the crankshaft journal, connecting rod journal, and balance weight of the crankshaft will all press a grinding rod 404, and the independent grinding rod 404 will closely adhere to and rub against different parts of the surface of the crankshaft during the rotation process. During the friction between the two, the oxidized skin on different parts of the surface of the crankshaft can be removed. The overall structure is simple, the use cost is low, the deoxidized skin removal effect is highly targeted, and the effect is good.

[0023] Further, a fixing frame 2 is fixedly connected to the top of the bottom plate 1 near one side edge. A three-jaw chuck 21 is rotatably connected to the outer surface of one side of the fixing frame 2. A servo motor 22 is installed at a position near the top of the outer surface of the other side of the fixing frame 2. The output end of the servo motor 22 penetrates through the outer surface of the fixing frame 2 and extends to the other side. The output end of the servo motor 22 is fixedly connected to the center of the outer surface of one side of the three-jaw chuck 21.

[0024] Through the above technical solution, the fixing frame 2 is mainly used for installing the servo motor 22 and the three-jaw chuck 21. After the three-jaw chuck 21 is connected to the output end of the servo motor 22, starting the servo motor 22 can drive the three-jaw chuck 21 to rotate. Therefore, during use, one end of the crankshaft to be processed is clamped and fixed by the three-jaw chuck 21, and then the servo motor 22 is started to drive the three-jaw chuck 21 to rotate, which has the effect of driving the crankshaft to rotate.

[0025] Further, a cylinder 3 is installed at the top of the bottom plate 1 near the other side edge. A movable frame 31 is fixedly installed at the telescopic end of the cylinder 3. The movable frame 31 is slidably installed on the top of the bottom plate 1. A rotating shaft 32 is rotatably connected to a position near the top of the outer surface of one side of the movable frame 31. One end of the rotating shaft 32 is fixedly connected to a chuck 33.

[0026] Through the above technical solution, the connection between the cylinder 3 and the movable frame 31 slidably connected to the bottom plate 1 plays a role in pushing the movable frame 31 to move horizontally. The chuck 33 is connected to the movable frame 31 through the rotating shaft 32, so that the chuck 33 can rotate on the surface of the movable frame 31. During use, the cylinder 3 is started to push the movable frame 31 to move towards the fixed crankshaft. During the process, the chuck 33 is aligned with the other end of the crankshaft. When the movable frame 31 moves to the right, the chuck 33 will limit and squeeze the other end of the crankshaft, so as to keep good stability when the crankshaft rotates.

[0027] Further, the support mechanism 5 includes an electric push rod 501. The electric push rod 501 is installed at a position near the middle of the top of the bottom plate 1. The telescopic end of the electric push rod 501 is fixedly connected to a mounting frame 502. A support shaft 503 is rotatably connected between the inner walls of the mounting frame 502. A roller 504 is rotatably connected to the outer surface of the support shaft 503. The roller 504 is located below a plurality of grinding rods 404. Limiting telescopic rods 505 are symmetrically installed between the bottom of the mounting frame 502 and the top of the bottom plate 1.

[0028] Through the above technical solution, after the scale on the surface of the crankshaft is polished, it can be removed by operating in the reverse order of the installation steps. During the removal of the crankshaft, the electric push rod 501 is started to drive the mounting bracket 502 to move upward. At this time, the mounting bracket 502 will drive the roller 504 to gradually rise and lift all the polishing rods 404 so that they are separated from the surface of the crankshaft. After the new crankshaft is fixed, the electric push rod 501 is used to drive the roller 504 to descend so that the polishing rods 404 are in contact with the surface of the crankshaft again. This design ensures that the polishing rods 404 do not affect the overall operation during the disassembly, installation and replacement of the crankshaft, improving the convenience during use. The mounting bracket 502 and the roller 504 are rotatably connected through a support shaft 503. Therefore, the roller 504 is in a free rotation state and can convert sliding friction into rolling friction when contacting the surface of the polishing rod 404, reducing frictional damage.

[0029] Working principle: During use, one end of the crankshaft to be processed is clamped and fixed by the three-jaw chuck 21. The air cylinder 3 is started to drive the movable frame 31 to move towards the fixed crankshaft. During the process, the chuck 33 is aligned with the other end of the crankshaft. When the movable frame 31 moves to the right, the chuck 33 will limit and squeeze the other end of the crankshaft. Subsequently, the servo motor 22 is started to drive the three-jaw chuck 21 to rotate, which drives the crankshaft to rotate. During the rotation of the crankshaft, a polishing rod 404 is pressed on the surfaces of the crankshaft journal, connecting rod journal and balance weight. During the rotation process, the independent polishing rod 404 will closely adhere to different parts of the crankshaft surface and generate friction. During the friction between the two, the scale on the surfaces of different parts of the crankshaft can be removed. The overall structure is simple, the use cost is low, the effect of removing scale is highly targeted and the effect is good. After the scale on the surface of the crankshaft is polished, it can be removed by operating in the reverse order of the installation steps. During the removal of the crankshaft, the electric push rod 501 is started to drive the mounting bracket 502 to move upward. At this time, the mounting bracket 502 will drive the roller 504 to gradually rise and lift all the polishing rods 404 so that they are separated from the surface of the crankshaft. After the new crankshaft is fixed, the electric push rod 501 is used to drive the roller 504 to descend so that the polishing rods 404 are in contact with the surface of the crankshaft again. This design ensures that the polishing rods 404 do not affect the overall operation during the disassembly, installation and replacement of the crankshaft, improving the convenience during use.

[0030] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalent technologies, the present invention is also intended to include these modifications and variations.

Claims

1. A crankshaft multi-position descaling device, comprising a base plate (1), characterized in that: A dermabrasion mechanism (4) is provided at a position near the front side of the top of the bottom plate (1), and a support mechanism (5) is provided at a position near the middle of the top of the bottom plate (1); The skin grinding mechanism (4) comprises a U-shaped frame (401), a connecting shaft (402) is fixedly connected between the inner surface walls on both sides of the U-shaped frame (401) at a position close to the top, a plurality of bearings (403) are equidistantly mounted on the outer surface of the connecting shaft (402), and a grinding rod (404) is fixedly mounted on the surface of each bearing (403).

2. The crankshaft multi-position descaling equipment according to claim 1, characterized in that: A fixing frame (2) is fixedly connected to the top of the bottom plate (1) near one side edge, and a three-jaw chuck (21) is rotatably connected to an outer surface of one side of the fixing frame (2).

3. The crankshaft multi-position descaling device according to claim 2, characterized in that: A servo motor (22) is installed near the top of the other side outer surface of the fixing frame (2); an output end of the servo motor (22) penetrates the outer surface of the fixing frame (2) and extends to the other side; the output end of the servo motor (22) is fixedly connected to the center of the outer surface of one side of the three-jaw chuck (21).

4. The crankshaft multi-position descaling device according to claim 3, characterized in that: A cylinder (3) is installed on the top of the base plate (1) near the other side edge, and a movable frame (31) is fixedly installed on the telescopic end of the cylinder (3), and the movable frame (31) is slidably installed on the top of the base plate (1).

5. The crankshaft multi-position descaling device according to claim 4, characterized in that: A rotating shaft (32) is rotatably connected to a position near the top of an outer surface of one side of the movable frame (31), and a chuck (33) is fixedly connected to one end of the rotating shaft (32).

6. The crankshaft multi-position descaling device according to claim 5, characterized in that: The support mechanism (5) comprises an electric push rod (501), the electric push rod (501) being mounted at a position near the middle of the top of the base plate (1), the telescopic end of the electric push rod (501) being fixedly connected to a mounting frame (502), a support shaft (503) being rotatably connected between the inner surface walls of the mounting frame (502), a roller (504) being rotatably connected to the outer surface of the support shaft (503), the roller (504) being located below the plurality of grinding rods (404), and a limited telescopic rod (505) being symmetrically mounted between the bottom of the mounting frame (502) and the top of the base plate (1).

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