Engine crankshaft polishing device

Abstract

The utility model discloses an engine crankshaft polishing device which comprises a workbench and a polishing ring. By the adoption of the polishing rings and the limiting wheels, after the crankshaft is fixed, the first adjusting screw rods at the corresponding positions can be rotated according to the different heights of all the bent necks, and then the polishing rings on the surfaces of the first adjusting screw rods can make contact with the bent necks; then the two polishing rings which are symmetrically arranged up and down are fastened through the fixing blocks and the bolts on the surfaces, at the moment, the polishing rings can surround the periphery of the curved neck, meanwhile, the abrasive belts on the surfaces of the polishing rings can be attached to the surface of the curved neck, and the contact area of the abrasive belts and the curved neck can be increased through the surrounding type structure; and then the polishing ring can continuously rotate on the surface of the curved neck through limiting of the limiting wheel by controlling operation of multiple sets of motors, the curved neck can be polished in the rotating process, and the curved neck polishing device has the advantages of being good in polishing effect and full in contact.

Description

Technical Field

[0001] This utility model relates to the field of crankshaft polishing technology, and more specifically, to an engine crankshaft polishing device. Background Technology

[0002] The crankshaft is the most critical component in the power system of an automobile engine. The crankshaft is directly driven by the connecting rod at the journal, so the surface accuracy of the journal directly affects the performance of the engine. To ensure the high precision requirements of the crankshaft journal surface, the journal surface of the crankshaft generally needs to undergo grinding and polishing processes.

[0003] The existing public technology application number is CN202220711825.4, which describes a polishing device for machining automobile engine crankshafts, including a base, a polishing machine, a mounting cover, and a waterproof plate, wherein the outer side of the top of the base is fixedly connected to the outer side of the bottom of the mounting cover.

[0004] Traditional crankshaft polishing involves manually polishing multiple journals on a crankshaft one by one using a sanding belt. This method cannot polish multiple journals simultaneously, is time-consuming and labor-intensive, and has low efficiency. Furthermore, the quality of manual polishing depends on the operator's experience and skills, making it difficult to guarantee the polishing quality of the crankshaft. Also, the contact between the sanding belt and the journals is not comprehensive, requiring frequent adjustments to the working position or rotation of the crankshaft, making it time-consuming and labor-intensive.

[0005] No effective solutions have yet been proposed to address the problems in the relevant technologies. Utility Model Content

[0006] To address the shortcomings of existing technologies, this utility model provides an engine crankshaft polishing device, which has the advantages of good polishing effect, sufficient contact, and high operating efficiency, thereby solving the problems mentioned in the background technology.

[0007] To achieve the advantages of good polishing effect, sufficient contact, and high work efficiency, the specific technical solution adopted by this utility model is as follows:

[0008] An engine crankshaft polishing device includes a worktable and a polishing ring. Several sets of first adjusting screws are symmetrically connected to both ends of the worktable. A support frame is rotatably connected to one end of each first adjusting screw. Limiting rods are symmetrically installed on one side of the support frame and are slidably connected to the worktable surface. Limiting wheels are symmetrically installed on both sides of one end of the support frame, and a polishing ring is rotatably connected between the limiting wheels. Supporting guide grooves for installing the limiting wheels are symmetrically formed on both sides of the polishing ring. A driving groove is formed in the middle of the outer surface of the polishing ring. Several sets of connecting teeth are arranged around the inner surface of the driving groove. A driving gear is meshed with the surface of the connecting teeth. One end of the driving gear is connected to the output end of a motor. The motor is fixed to the surface of the support frame via a connecting bracket.

[0009] Furthermore, an abrasive belt is provided on the inner surface of the polishing ring.

[0010] Furthermore, several sets of fixing blocks are symmetrically welded to both sides of the polishing ring.

[0011] Furthermore, second adjusting screws are symmetrically installed on both sides of the workbench, and a clamp is installed at one end of each second adjusting screw.

[0012] Furthermore, support legs are symmetrically installed on both sides of the bottom of the workbench.

[0013] Furthermore, the worktable surface is provided with several sets of threaded holes for the first adjusting screw and the second adjusting screw to rotate.

[0014] Furthermore, both the support frame and the connecting frame are made of metal.

[0015] Furthermore, the polishing ring has a semi-circular structure.

[0016] Compared with the prior art, the present invention provides an engine crankshaft polishing device, which has the following beneficial effects:

[0017] (1) This utility model uses polishing rings and limiting wheels. After the crankshaft is fixed, the first adjusting screw at the corresponding position can be rotated according to the different heights of each crank neck, so that the polishing ring on its surface can contact the crank neck. Then, the two polishing rings arranged symmetrically on the upper and lower sides are fastened by the fixing blocks and bolts on the surface. At this time, the polishing ring can be wrapped around the outside of the crank neck, and the sanding belt on its surface can also be attached to the surface of the crank neck. The wrap-around structure can increase the contact area between the sanding belt and the crank neck, thereby improving the subsequent polishing quality. Then, by controlling the operation of multiple sets of motors, the polishing ring can be continuously rotated on the surface of the crank neck by the limiting wheel. During the rotation, the crank neck can be polished, thereby realizing the polishing operation of the crankshaft. It has the advantages of good polishing effect and sufficient contact.

[0018] (2) This utility model adopts a first adjusting screw and a polishing ring. After the crankshaft is fixed, the first adjusting screw at the corresponding position can be rotated according to the different heights of each crank neck, so that the polishing ring on its surface can contact the crank neck. Since the height of the polishing ring is adjustable and there are multiple sets, multiple crank necks of the entire crankshaft can be polished at one time, thereby improving the overall work efficiency and making it easier to use. It has the advantage of high work efficiency. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the structure of an engine crankshaft polishing device proposed in this utility model;

[0021] Figure 2 This is a schematic diagram of the internal structure of the polishing ring of this utility model;

[0022] Figure 3 This is a schematic diagram of the structure of the limiting wheel of this utility model;

[0023] Figure 4 This is a schematic diagram showing the connection between the motor and the drive gear of this utility model.

[0024] In the picture:

[0025] 1. Workbench; 2. Limiting rod; 3. First adjusting screw; 4. Support frame; 5. Second adjusting screw; 6. Fixture; 7. Polishing ring; 8. Support guide groove; 9. Motor; 10. Connecting frame; 11. Drive gear; 12. Limiting wheel; 13. Drive groove; 14. Connecting teeth; 15. Support leg; 16. Sanding belt; 17. Fixing block. Detailed Implementation

[0026] To further illustrate the various embodiments, the present invention provides accompanying drawings, which are part of the disclosure of the present invention. These drawings are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, those skilled in the art should be able to understand other possible implementation methods and the advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are usually used to represent similar components.

[0027] According to an embodiment of the present invention, an engine crankshaft polishing device is provided.

[0028] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments, such as... Figure 1-4 As shown, an engine crankshaft polishing device according to an embodiment of the present invention includes a worktable 1 and a polishing ring 7. Several sets of first adjusting screws 3 are symmetrically connected to both ends of the worktable 1. A support frame 4 is rotatably connected to one end of the first adjusting screws 3. Limiting rods 2 are symmetrically installed on one side of the support frame 4 and are slidably connected to the surface of the worktable 1. Limiting wheels 12 are symmetrically installed on both sides of one end of the support frame 4. The polishing ring 7 is rotatably connected between the limiting wheels 12. Supporting guide grooves 8 for the installation of the limiting wheels 12 are symmetrically opened on both sides of the polishing ring 7. A drive groove 13 is opened in the middle of the outer surface of the polishing ring 7. Several sets of connecting teeth 14 are arranged around the inner surface of the drive groove 13. A drive gear 11 is meshed with the surface of the connecting teeth 14. One end of the drive gear 11 is connected to the output end of a motor 9. The motor 9 is fixed to the surface of the support frame 4 through a connecting frame 10. The limiting wheels 12 are set to support the polishing ring 7 and ensure its rotation trajectory.

[0029] In one embodiment, an abrasive belt 16 is provided on the inner surface of the polishing ring 7 for polishing the crankshaft.

[0030] In one embodiment, several sets of fixing blocks 17 are symmetrically welded to the two sides of the polishing ring 7. The fixing blocks 17 are provided to facilitate the installation of bolts, thereby realizing the connection and fastening operation of multiple sets of polishing rings 7.

[0031] In one embodiment, second adjusting screws 5 are symmetrically installed on both sides of the worktable 1. A clamp 6 is installed at one end of the second adjusting screw 5. The clamp 6 is set to clamp and fix both ends of the crankshaft. The structure of the clamp 6 can be selected according to the different structures of both ends of the crankshaft, which will not be described in detail here.

[0032] In one embodiment, support legs 15 are symmetrically installed on both sides of the bottom of the workbench 1. The support legs 15 can fix the entire device, thereby enhancing the overall stability of use.

[0033] In one embodiment, the workbench 1 has several sets of threaded holes on its surface for the first adjusting screw 3 and the second adjusting screw 5 to rotate. The threaded holes are provided to facilitate the rotation and adjustment of the first adjusting screw 3 and the second adjusting screw 5.

[0034] In one embodiment, both the support frame 4 and the connecting frame 10 are made of metal. The metal material is used to ensure the strength of the structure. There are various types of metal materials and the application technology is mature, so personnel can choose according to their needs. This will not be elaborated further here.

[0035] In one embodiment, the polishing ring 7 has a semi-circular structure. The semi-circular structure is designed so that when two sets of polishing rings 7 are joined together, they form a complete circle, thereby better fitting the structure of the crankshaft surface and the crank neck.

[0036] Working Principle: In actual use, the distance between multiple sets of clamps 6 can be adjusted by rotating the second adjusting screw 5, which facilitates the subsequent installation and fixing of the automobile engine crankshaft to be polished. After the crankshaft is fixed, the first adjusting screw 3 at the corresponding position can be rotated according to the different heights of each crank neck, so that the polishing ring 7 on its surface can contact the crank neck. Then, the two polishing rings 7, which are symmetrically arranged, are fastened by the fixing block 17 on the surface and bolts. At this time, the polishing ring 7 can surround the outside of the crank neck, and the sanding belt 16 on its surface can also contact the surface of the crank neck. Then, by controlling... The operation of multiple sets of motors 9 can drive the drive gear 11 connected to its output end to rotate. The rotation of the drive gear 11 can drive the polishing ring 7 through the connecting teeth 14 on its surface, so that the polishing ring 7 is continuously rotated on the surface of the crankshaft by the limit wheel 12. During the rotation, the crankshaft can be polished, thereby realizing the polishing operation of the crankshaft. Since the height of the polishing ring 7 is adjustable and there are multiple sets, multiple crankshafts can be polished at one time, thereby improving the overall work efficiency and making it easier to use. The device as a whole has the advantages of good polishing effect, sufficient contact and high work efficiency.

[0037] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0038] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An engine crankshaft polishing device, comprising a worktable (1) and a polishing ring (7), characterized in that, Several sets of first adjusting screws (3) are symmetrically connected to both ends of the worktable (1). A support frame (4) is rotatably connected to one end of the first adjusting screw (3). A limit rod (2) is symmetrically installed on one side of the support frame (4), and the limit rod (2) is slidably connected to the surface of the worktable (1). Limit wheels (12) are symmetrically installed on both sides of one end of the support frame (4). A polishing ring (7) is rotatably connected between the limit wheels (12). Support guide grooves (8) for the installation of the limit wheels (12) are symmetrically opened on both sides of the polishing ring (7). A drive groove (13) is opened in the middle of the outer surface of the polishing ring (7). Several sets of connecting teeth (14) are arranged around the inner surface of the drive groove (13). A drive gear (11) is meshed with the surface of the connecting teeth (14). One end of the drive gear (11) is connected to the output end of the motor (9). The motor (9) is fixed to the surface of the support frame (4) through a connecting frame (10).

2. The engine crankshaft polishing device according to claim 1, characterized in that, The polishing ring (7) has an abrasive belt (16) on its inner surface.

3. The engine crankshaft polishing device according to claim 1, characterized in that, Several sets of fixing blocks (17) are symmetrically welded to the two sides of the polishing ring (7).

4. The engine crankshaft polishing device according to claim 1, characterized in that, The workbench (1) is symmetrically equipped with second adjusting screws (5) on both sides of the surface, and a clamp (6) is installed at one end of the second adjusting screws (5).

5. The engine crankshaft polishing device according to claim 1, characterized in that, The workbench (1) is symmetrically equipped with support legs (15) on both sides of its bottom.

6. The engine crankshaft polishing device according to claim 1, characterized in that, The workbench (1) has several sets of threaded holes on its surface for the first adjusting screw (3) and the second adjusting screw (5) to rotate.

7. The engine crankshaft polishing device according to claim 1, characterized in that, Both the support frame (4) and the connecting frame (10) are made of metal.

8. The engine crankshaft polishing device according to claim 1, characterized in that, The polishing ring (7) has a semi-circular structure.

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