An engine direct drive shaft sleeve inner hole annular groove reaming forming device

Abstract

The utility model belongs to the technical field of machining, concretely relates to a engine direct drive axle sleeve hole annular groove chambering forming device, including main body platform, the top of main body platform is provided with workpiece main body, the top of main body platform is provided with steady clamping subassembly, the top of main body platform is provided with chambering device, the chambering device is including the upper board frame, the bottom fixed connection of upper board frame is on the top of main body platform, the top of upper board frame is provided with drive assembly, the mobile end fixed connection of drive assembly has the extension column, the bottom fixed connection of extension column has chambering roller, the outer wall of chambering roller is fixedly connected with the convex ring. Drive assembly includes drive motor. The utility model solves the problem that the conventional chambering forming hole cannot generate annular groove, leads to workpiece material utilization rate is low, leads to the long problem of subsequent machining time, thereby improves the raw material utilization rate of workpiece.

Description

Technical Field

[0001] This utility model belongs to the field of mechanical processing technology, specifically relating to a device for expanding and forming annular grooves in the inner hole of an engine direct drive bushing. Background Technology

[0002] The background technology of the device for expanding and forming the annular groove of the inner hole of an engine direct-drive bushing relates to the manufacturing technology of bearing components in the fields of automobiles and aero-engines. With the development of engine technology, the operating efficiency, stability, and durability of engines place higher demands on the precision machining of engine components, especially bearings. To ensure smooth engine operation, bushings typically require higher mechanical properties, particularly in the machining accuracy of the inner hole and annular groove. In the past, the annular groove of the inner hole of an engine direct-drive bushing was usually machined using methods such as machining or milling. While these methods are relatively mature, they also have some limitations, such as low machining accuracy, low production efficiency, and susceptibility to machining defects. Furthermore, traditional methods may cause tool wear during machining, increasing production costs and maintenance difficulties.

[0003] Patent publication number CN205008652U discloses a tool for forming annular grooves in a connecting plate, including a fixture. The fixture consists of a horizontal plate and a support plate. The front end of the horizontal plate has two inclined through holes, and a first tool holder and a second tool holder are inserted into each of the inclined through holes. The portions of the first and second tool holders that are inserted into the inclined through holes also have first and second through holes. The lower ends of the first and second tool holders are provided with a first milling cutter and a second milling cutter. The side wall of the horizontal plate is provided with a first fixing member that passes through the first and second through holes. The left side wall of the support plate is provided with a chamfering cutter. This patent can simultaneously install tools of different precision and can also work simultaneously with the chamfering cutter, improving the processing efficiency of the workpiece, saving manpower and time, and reducing costs.

[0004] However, the current connecting plate annular groove forming tool has the following problems: conventional hole expansion forming inner hole cannot generate annular groove, resulting in low workpiece material utilization and long subsequent machining time. Therefore, we propose a hole expansion forming device for annular groove of engine direct drive bushing inner hole. Utility Model Content

[0005] The purpose of this invention is to provide a device for expanding and forming annular grooves in the inner hole of an engine direct drive bushing, which can solve the problem that conventional expansion and forming of inner holes in related technologies cannot generate annular grooves, resulting in low material utilization of workpieces and long subsequent machining time.

[0006] The specific technical solution adopted by this utility model is as follows:

[0007] An apparatus for expanding and forming an annular groove in the inner hole of an engine direct drive bushing includes a main platform, a workpiece body on the top of the main platform, a stabilizing clamping assembly on the top of the main platform, and an expanding device on the top of the main platform. The expanding device includes an upper plate frame, the bottom of which is fixedly connected to the top of the main platform. A driving assembly is located on the top of the upper plate frame. An extension column is fixedly connected to the moving end of the driving assembly. An expanding roller is fixedly connected to the bottom of the extension column. A protruding ring is fixedly connected to the outer wall of the expanding roller.

[0008] The drive assembly includes a drive motor, the bottom of which is fixedly connected to the top of the upper board frame. An electric telescopic rod is fixedly connected to the output shaft of the drive motor. A horizontal slider is fixedly connected to the telescopic end of the electric telescopic rod. A threaded shaft is rotatably connected to the inner wall of the groove of the horizontal slider. A torsion block is fixedly connected to the side of the threaded shaft. A threaded slider is threadedly connected to the threaded surface of the threaded shaft. The top of the extension column is fixedly connected to the bottom of the threaded slider. The threaded slider is the moving end of the drive assembly.

[0009] The stabilizing clamping assembly includes four clamping slots, which are formed on the top of the main body. An electric push rod is fixedly connected to the inner wall of each of the four clamping slots, and a clamping plate is fixedly connected to the telescopic end of the electric push rod.

[0010] The outer wall of the convex ring is provided with a convex arc surface, and the inner wall of the workpiece body is located on the movement trajectory of the outer wall of the convex ring.

[0011] The outer wall of the threaded slider is in contact with the inner wall of the groove of the horizontal slider, and the outer wall of the rotating block is in contact with the inner wall of the rotating groove of the horizontal slider.

[0012] The bottom of the threaded slider is provided with a shock-absorbing device, which includes a lower ring. The top of the lower ring is fixedly connected to the bottom of the threaded slider. A heat dissipation groove is provided on the outer wall of the lower ring. Multiple polarizing wheels are rotatably connected to the bottom of the lower ring.

[0013] The inner diameter of the lower ring is larger than the outer diameter of the extension column, and the outer wall of the polarizing wheel is in contact with the outer wall of the extension column.

[0014] The technical effects achieved by this utility model are as follows:

[0015] This invention, through the setting of a hole-expanding device, enables the upper plate frame, drive motor, electric telescopic rod, horizontal slider, threaded shaft, rotary block, threaded slider, extension column, hole-expanding roller, and convex ring to cooperate. The output shaft of the drive motor rotates, driving the electric telescopic rod to rotate, which in turn drives the horizontal slider to rotate, which in turn drives the threaded shaft to rotate, which in turn drives the threaded slider to rotate, which in turn drives the extension column to rotate, which in turn drives the hole-expanding roller to rotate, and the hole-expanding roller to rotate, thereby causing the convex ring to rotate. This allows the convex ring to expand and groove the inner wall of the workpiece body, thereby increasing the material utilization rate of the workpiece by -%, reducing the time of subsequent machining, improving machining efficiency, and saving costs.

[0016] This invention utilizes a shock-absorbing device to coordinate the lower ring, heat dissipation groove, and polarizing wheel. The rotation of the threaded slider drives the lower ring to rotate synchronously, and the rotation of the lower ring drives the polarizing wheel to rotate. When the reaming device performs internal grooving on the workpiece body, the high-frequency vibration generated by the intense friction between the components and the workpiece is transmitted to the extension column by the reaming roller. Due to the close contact between the polarizing wheel and the extension column, the polarizing wheel absorbs and disperses the high-frequency vibration transmitted from the components, thereby preventing the workpiece from becoming uneven due to component vibration. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the entire utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the clamping plate of this utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the drive motor of this utility model;

[0020] Figure 4 This is a utility model Figure 3 A magnified schematic diagram of the structure at point A in the middle;

[0021] Figure 5 This is a schematic diagram of the structure of the polarization wheel of this utility model.

[0022] The attached diagram lists the components represented by each number as follows:

[0023] 1. Main platform; 2. Workpiece body; 3. Stable clamping assembly; 31. Clamping groove; 32. Electric push rod; 33. Clamping plate; 4. Hole reaming device; 41. Upper plate frame; 42. Drive motor; 43. Electric telescopic rod; 44. Horizontal slider; 45. Threaded shaft; 46. Rotary block; 47. Threaded slider; 48. Extension column; 49. Hole reaming roller; 410. Convex ring; 5. Shock absorption device; 51. Lower ring; 52. Heat dissipation groove; 53. Polarizing wheel. Detailed Implementation

[0024] To make the objectives and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the following text is merely used to describe one or more specific embodiments of this utility model and does not strictly limit the scope of protection specifically claimed by this utility model.

[0025] like Figure 1-5 As shown, an engine direct drive bushing inner hole annular groove expansion forming device includes a main platform 1, a workpiece body 2 is provided on the top of the main platform 1, a stable clamping assembly 3 is provided on the top of the main platform 1, an expansion device 4 is provided on the top of the main platform 1, the expansion device 4 includes an upper plate frame 41, the bottom of the upper plate frame 41 is fixedly connected to the top of the main platform 1, a driving assembly is provided on the top of the upper plate frame 41, an extension column 48 is fixedly connected to the moving end of the driving assembly, an expansion roller 49 is fixedly connected to the bottom of the extension column 48, and a convex ring 410 is fixedly connected to the outer wall of the expansion roller 49, the convex ring 410 can effectively groove the inner wall of the workpiece.

[0026] The drive assembly includes a drive motor 42, the bottom of which is fixedly connected to the top of the upper plate frame 41. The output shaft of the drive motor 42 is fixedly connected to an electric telescopic rod 43. The telescopic end of the electric telescopic rod 43 is fixedly connected to a horizontal slider 44. A threaded shaft 45 is rotatably connected to the inner wall of the groove of the horizontal slider 44. A torsion block 46 is fixedly connected to the side of the threaded shaft 45. A threaded slider 47 is threadedly connected to the threaded surface of the threaded shaft 45. The top of the extension column 48 is fixedly connected to the bottom of the threaded slider 47. The threaded slider 47 is the moving end of the drive assembly, and the moving end ensures the normal operation of the device.

[0027] The stable clamping assembly 3 includes four clamping slots 31, which are formed on the top of the main body 1. Each of the four clamping slots 31 has an electric push rod 32 fixedly connected to its inner wall. The telescopic end of the electric push rod 32 is fixedly connected to a clamping plate 33. This is existing technology and will not be elaborated further.

[0028] The outer wall of the convex ring 410 is set with a convex arc surface, and the inner wall of the workpiece body 2 is located on the movement trajectory of the outer wall of the convex ring 410. The setting of the convex arc surface can increase the pressure on the workpiece.

[0029] The outer wall of the threaded slider 47 contacts the inner wall of the groove of the horizontal slider 44, and the outer wall of the rotating block 46 contacts the inner wall of the rotating groove of the horizontal slider 44. The necessary contact ensures the stable operation of the device.

[0030] According to the above structure, before the processing begins, the operator opens the electric push rods 32 via an external controller, causing the telescopic ends of the four electric push rods 32 to move the four clamping plates 33 towards the outer wall of the workpiece body 2, thereby applying a clamping force to the workpiece body 2 and fixing its position. Then, the operator rotates the torsion block 46, which in turn rotates the threaded shaft 45, causing the threaded slider 47 to move. This movement of the threaded slider 47 causes the extension column 48 to slide, which in turn causes the expanding roller 49 to slide, which in turn causes the convex ring 410 to slide to the designated position. Finally, the operator opens the electric telescopic rods 43 via an external controller, causing the telescopic ends of the electric telescopic rods 43 to move the horizontal slider 44 downwards, which in turn causes the threaded slider 47 to move downwards. The sliding mechanism involves the threaded slider 47 sliding downwards, which in turn causes the extension column 48 to slide downwards. This downward sliding of the extension column 48 then causes the expanding roller 49 to slide downwards, which in turn causes the convex ring 410 to slide downwards. This allows the convex ring 410 to be adjusted to a specified height. Finally, the operator activates the drive motor 42 via an external controller. The output shaft of the drive motor 42 rotates, causing the electric telescopic rod 43 to rotate. The rotation of the electric telescopic rod 43 then causes the horizontal slider 44 to rotate, which in turn causes the threaded shaft 45 to rotate. The rotation of the threaded shaft 45 then causes the threaded slider 47 to rotate, which in turn causes the extension column 48 to rotate. The rotation of the extension column 48 then causes the expanding roller 49 to rotate, which in turn causes the convex ring 410 to rotate. This rotation of the convex ring 410 enlarges and grooves the inner wall of the workpiece body 2, thereby increasing the material utilization rate of the workpiece by 15-20%, reducing the time required for subsequent machining, improving machining efficiency, and saving costs.

[0031] like Figure 1-5 As shown, a shock-absorbing device 5 is provided on the bottom of the threaded slider 47. The shock-absorbing device 5 includes a lower ring 51. The top of the lower ring 51 is fixedly connected to the bottom of the threaded slider 47. A heat dissipation groove 52 is provided on the outer wall of the lower ring 51. Multiple polarizing wheels 53 are rotatably connected to the bottom of the lower ring 51. The polarizing wheels 53 are made of a high-toughness soft material.

[0032] The inner diameter of the lower ring 51 is larger than the outer diameter of the extension column 48, and the outer wall of the polarizing wheel 53 is in contact with the outer wall of the extension column 48. Necessary contact can ensure the stable operation of the device.

[0033] According to the above structure, the rotation of the threaded slider 47 drives the lower ring 51 to rotate synchronously, and the rotation of the lower ring 51 drives the polarizing wheel 53 to rotate. When the reaming device 4 performs internal grooving on the workpiece body 2, the high-frequency vibration generated by the intense friction between the component and the workpiece is transmitted to the extension column 48 by the reaming roller 49. Due to the close contact between the polarizing wheel 53 and the extension column 48, the polarizing wheel 53 absorbs and disperses the high-frequency vibration transmitted by the component, thereby preventing the workpiece from becoming uneven due to the vibration of the component.

[0034] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the field.

Claims

1. A device for expanding and forming annular grooves in the inner hole of an engine direct-drive bushing, comprising a main platform (1), a workpiece body (2) being disposed on the top of the main platform (1), and a stabilizing clamping assembly (3) being disposed on the top of the main platform (1), characterized in that: The top of the main platform (1) is provided with a hole-expanding device (4). The hole-expanding device (4) includes an upper plate frame (41). The bottom of the upper plate frame (41) is fixedly connected to the top of the main platform (1). The top of the upper plate frame (41) is provided with a driving component. The moving end of the driving component is fixedly connected with an extension column (48). The bottom of the extension column (48) is fixedly connected with a hole-expanding roller (49). A protruding ring (410) is fixedly connected to the outer wall of the hole-expanding roller (49).

2. The device for expanding and forming annular grooves in the inner bore of an engine direct drive bushing according to claim 1, characterized in that: The drive assembly includes a drive motor (42), the bottom of which is fixedly connected to the top of the upper plate frame (41). The output shaft of the drive motor (42) is fixedly connected to an electric telescopic rod (43). The telescopic end of the electric telescopic rod (43) is fixedly connected to a horizontal slider (44). A threaded shaft (45) is rotatably connected to the inner wall of the groove of the horizontal slider (44). A torsion block (46) is fixedly connected to the side of the threaded shaft (45). A threaded slider (47) is threadedly connected to the threaded surface of the threaded shaft (45). The top of the extension column (48) is fixedly connected to the bottom of the threaded slider (47). The threaded slider (47) is the moving end of the drive assembly.

3. The device for expanding and forming annular grooves in the inner bore of an engine direct-drive bushing according to claim 1, characterized in that: The stabilizing clamping assembly (3) includes four clamping slots (31), which are located on the top of the main body platform (1). An electric push rod (32) is fixedly connected to the inner wall of each of the four clamping slots (31), and a clamping plate (33) is fixedly connected to the telescopic end of the electric push rod (32).

4. The device for expanding and forming annular grooves in the inner bore of an engine direct drive bushing according to claim 1, characterized in that: The outer wall of the convex ring (410) is provided with a convex arc surface, and the inner wall of the workpiece body (2) is located on the movement trajectory of the outer wall of the convex ring (410).

5. The device for expanding and forming annular grooves in the inner hole of an engine direct drive bushing according to claim 2, characterized in that; The outer wall of the threaded slider (47) is in contact with the inner wall of the groove of the horizontal slider (44), and the outer wall of the rotating block (46) is in contact with the inner wall of the rotating groove of the horizontal slider (44).

6. The device for expanding and forming annular grooves in the inner bore of an engine direct-drive bushing according to claim 2, characterized in that: The bottom of the threaded slider (47) is provided with a shock-absorbing device (5). The shock-absorbing device (5) includes a lower ring (51). The top of the lower ring (51) is fixedly connected to the bottom of the threaded slider (47). A heat dissipation groove (52) is opened on the outer wall of the lower ring (51). Multiple polarizing wheels (53) are rotatably connected to the bottom of the lower ring (51).

7. The device for expanding and forming annular grooves in the inner bore of an engine direct-drive bushing according to claim 6, characterized in that: The inner diameter of the lower ring (51) is larger than the outer diameter of the extension column (48), and the outer wall of the polarizing wheel (53) is in contact with the outer wall of the extension column (48).

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