Auxiliary supporting device for machining inner circle and outer circle of thin-wall workpiece

Abstract

The utility model discloses an auxiliary supporting device for inner and outer circle machining of a thin-wall workpiece, which relates to the technical field of inner and outer circle machining and comprises a circular workpiece, symmetrical auxiliary supporting assemblies are arranged on the outer side of the circular workpiece, and each auxiliary supporting assembly comprises a first driving motor. A power output shaft of the first driving motor is in transmission connection with a rotating lead screw through a bearing, the outer side of the rotating lead screw is movably connected with a sliding seat, the front end of the rotating lead screw is movably connected with a connecting rotating frame, the bottom end of the connecting rotating frame is fixedly connected with a limiting frame, and the rotating lead screw is located in the limiting frame. Rectangular penetrating holes are formed in the two sides of the limiting frame correspondingly, and the sliding seats are located in the rectangular penetrating holes and slidably connected. The auxiliary supporting device for machining the inner circle and the outer circle of the thin-wall workpiece has the advantages that displacement and shaking of the workpiece during machining are prevented, stability is improved, and the influence of vibration caused by factors such as cutting force of a cutter on machining efficiency and quality is reduced.

Description

Technical Field

[0001] This utility model relates to the field of internal and external circle machining technology, and in particular to an auxiliary support device for machining the internal and external circles of thin-walled workpieces. Background Technology

[0002] Thin-walled components are used in the aerospace industry to reduce weight. For example, thin-walled tubing in aircraft fuel lines reduces weight while maintaining strength, improving flight efficiency. In medical devices, small, circular, thin-walled housings can protect delicate internal components, such as the housing of a pacemaker. These housings must be compact and lightweight while still housing and protecting electronic components and batteries. In automotive manufacturing, thin-walled components can serve as housings for certain sensors, protecting and positioning internal sensing elements. Their thin-walled nature does not significantly increase weight, facilitating lightweight automotive design.

[0003] When machining the inner and outer diameters of thin-walled workpieces, the workpieces are prone to displacement or shaking due to unstable clamping, which causes deviations in the machining dimensions and fails to meet the accuracy requirements. This affects the surface quality of the machined parts. Unstable clamping causes the workpiece to vibrate during machining, resulting in poor contact between the tool and the workpiece surface, leaving defects such as vibration marks and tool marks on the workpiece surface, reducing surface roughness and affecting production efficiency. Utility Model Content

[0004] This utility model discloses an auxiliary support device for machining the inner and outer circles of thin-walled workpieces. It aims to solve the technical problems that when machining the inner and outer circles of thin-walled workpieces, unstable clamping will cause workpiece displacement and shaking, resulting in deviations in machining dimensions and failure to meet accuracy requirements. It will also cause workpiece vibration, resulting in poor contact between the tool and the workpiece surface, producing vibration marks and tool marks, reducing surface roughness, and affecting production efficiency.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] An auxiliary support device for machining the inner and outer circles of a thin-walled workpiece includes a circular workpiece. Symmetrical auxiliary support components are arranged on the outer side of the circular workpiece. Each auxiliary support component includes a drive motor. The power output shaft of the drive motor is connected to a rotating lead screw via bearing transmission. A sliding seat is movably connected to the outer side of the rotating lead screw. A connecting rotating frame is movably connected to the front end of the rotating lead screw. A limit frame is fixedly connected to the bottom end of the connecting rotating frame. The rotating lead screw is located inside the limit frame. Rectangular through holes are provided on both sides of the limit frame, and the sliding seat is fixedly connected to the inside of the rectangular through holes. Connecting movable rods are movably connected to both ends of the connecting rotating frame. Sliding frames are movably connected to the outer sides of the connecting movable rods. Connecting U-shaped rods are fixedly connected to the top of both ends of the sliding seat. The end of the connecting U-shaped rod away from the sliding seat is fixedly connected to the top end of the sliding frame. A clamping plate is fixedly connected to the front end of each connecting movable rod, and the front section of the clamping plate contacts the outer side of the circular workpiece.

[0007] By setting up a circular workpiece and auxiliary support components, when the workpiece is being machined into an inner circle, the drive motor is started to drive the rotating screw inside the limit frame to rotate. The sliding seat located outside the rotating screw slides inside the limit frame. At the same time, the sliding frame fixedly connected to the sliding seat moves inward along the connecting movable rod. The outer side of the circular workpiece is fixed by the opposing clamping of the clamping plates. This process prevents the workpiece from shifting or shaking during machining, improves the stability of the workpiece during machining, and reduces vibration caused by factors such as cutting force of the tool, thus affecting machining efficiency and quality.

[0008] In a preferred embodiment, a motor housing is fixedly connected to the outer side of the first drive motor. The top end of the motor housing is fixedly connected to the bottom end of the limiting frame, and a linkage gear is fixedly connected to the bottom end of the motor housing. A drive gear is movably connected to the outer side of the linkage gear. The drive gear and the linkage gear mesh with each other through a tooth groove. A second drive motor is provided on the outer side of the motor housing. The power output shaft of the second drive motor is connected to the front end of the drive gear through a bearing transmission connection. A processing table is provided at the bottom end of the circular workpiece. A lifting platform is fixedly connected inside the processing table. The lifting platform is located at the bottom end of the circular workpiece. Connecting frames are fixedly connected to both ends of the processing table, and connecting plates are fixedly connected to the top of each connecting frame. The front end of the connecting plate is movably connected to the bottom end of the drive gear and the linkage gear.

[0009] The system includes a motor housing, a linkage gear, a drive gear, a second drive motor, a processing table, a lifting table, a connecting frame, and a first connecting plate. When the workpiece is being machined into an inner circle, if it rotates at an angle, the second drive motor is activated to rotate the drive gear. At the same time, the linkage gear, which meshes with the drive gear, drives the auxiliary support assembly to rotate as a whole. Simultaneously, the circular workpiece being clamped also achieves the function of rotating at an angle.

[0010] In a preferred embodiment, the top of the lifting platform is provided with an inner circular support assembly, which includes an electrically driven telescopic rod. A sliding gear rod is fixedly connected to the front end of the electrically driven telescopic rod, and a rotating gear is movably connected to the outer side of the sliding gear rod. The rotating gear and the sliding gear rod mesh with each other through a second tooth groove. A rotating rod is fixedly connected to the top end of the rotating gear, and a base plate is movably connected to the outer side of the rotating rod. A connecting plate is fixedly connected to the bottom end of the base plate, and the front end of the connecting plate is fixedly connected to the bottom end of the electrically driven telescopic rod. A sliding groove plate is movably connected to the outer side of the rotating rod, located above the base plate and inside the circular workpiece. A rotation limiting plate is fixedly connected to the bottom end of the rotating rod, and multiple sliding grooves are formed on the rotation limiting plate. A sliding rod is movably connected inside each of the sliding grooves, and the bottom end of each sliding rod is movably connected to the top end of the sliding groove plate. An arc-shaped support plate is fixedly connected to the outer side of each sliding rod, and the outer side of the arc-shaped support plate contacts the inner side of the circular workpiece.

[0011] With the inner circle support assembly in place, when the workpiece is being machined on its outer circle, the lifting platform raises the inner circle support assembly inside the circular workpiece. This activates the electric drive telescopic rod, which in turn drives the sliding gear rod to reciprocate, causing the rotating gear to rotate. Simultaneously, the rotating rod at the top of the rotating gear drives the sliding rod inside the rotating limit plate to reciprocate within the slide plate. The arc-shaped support plate outside the sliding rod then supports the inside of the circular workpiece. This process prevents the workpiece from deforming due to stress during machining, which could reduce the dimensional and shape accuracy of the outer circle. The internal support effectively resists this deformation, ensuring machining accuracy.

[0012] As can be seen from the above, the auxiliary support device for machining the inner and outer circles of thin-walled workpieces provided by this utility model has the technical effect of improving the prevention of workpiece displacement or shaking during machining, improving the stability of workpiece during machining, reducing vibration caused by factors such as cutting force of the tool, and improving machining efficiency and quality. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the main structure of an auxiliary support device for machining the inner and outer circles of a thin-walled workpiece, as proposed in this utility model.

[0014] Figure 2 This is a schematic diagram of the internal structure of an auxiliary support device for machining the inner and outer circles of a thin-walled workpiece, as proposed in this utility model.

[0015] Figure 3 This is a schematic diagram of the motor housing structure of an auxiliary support device for machining the inner and outer circles of a thin-walled workpiece, as proposed in this utility model.

[0016] Figure 4This is a schematic diagram of the auxiliary support component structure of an auxiliary support device for machining the inner and outer circles of a thin-walled workpiece, as proposed in this utility model.

[0017] Figure 5 This is a schematic diagram of the inner circle support component of an auxiliary support device for machining the inner and outer circles of a thin-walled workpiece, as proposed in this utility model.

[0018] In the attached diagram: 1. Circular workpiece; 2. Machining table; 3. Connecting plate one; 4. Connecting frame; 5. Auxiliary support assembly; 501. Drive motor one; 502. Rotating lead screw; 503. Limiting frame; 504. Sliding seat; 505. Connecting U-shaped rod; 506. Connecting rotating frame; 507. Sliding frame; 508. Connecting movable rod; 509. Clamping plate; 6. Lifting platform; 7. Drive motor two; 8. Drive gear; 9. Linkage gear; 10. Motor housing; 11. Inner circle support assembly; 1101. Electric drive telescopic rod; 1102. Sliding gear rod; 1103. Rotating gear; 1104. Base plate; 1105. Rotating rod; 1106. Slide plate; 1107. Sliding rod; 1108. Rotation limiting plate; 1109. Arc-shaped support plate; 12. Connecting plate two. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0020] The auxiliary support device for machining the inner and outer circles of thin-walled workpieces disclosed in this utility model is mainly used when machining the inner and outer circles of thin-walled workpieces. The workpiece is prone to displacement or shaking due to unstable clamping, which causes deviation in the machining dimensions and fails to meet the accuracy requirements. This will affect the surface quality of the machined workpiece. Unstable clamping will cause the workpiece to vibrate during machining, resulting in poor contact between the tool and the workpiece surface, leaving defects such as vibration marks and tool marks on the workpiece surface, reducing surface roughness and affecting production efficiency.

[0021] Reference Figures 1-5An auxiliary support device for machining the inner and outer circles of a thin-walled workpiece includes a circular workpiece 1. Symmetrical auxiliary support components 5 are arranged on the outer side of the circular workpiece 1. Each auxiliary support component 5 includes a drive motor 501. The power output shaft of the drive motor 501 is connected to a rotating lead screw 502 via bearings. A sliding seat 504 is slidably connected to the outer side of the rotating lead screw 502. A connecting rotating frame 506 is rotatably connected to the front end of the rotating lead screw 502. A limiting frame 503 is bolted to the bottom end of the connecting rotating frame 506. The rotating lead screw 502 is located inside the limiting frame 503. The limiting frame 503 has two sides... All have rectangular through holes, and the sliding seat 504 is located inside the rectangular through holes and is slidably connected. Both ends of the connecting rotating frame 506 are rotatably connected to the connecting movable rod 508. The outer side of the connecting movable rod 508 is slidably connected to the sliding frame 507. The top of both ends of the sliding seat 504 are bolted to the connecting U-shaped rod 505. The end of the connecting U-shaped rod 505 away from the sliding seat 504 is bolted to the top of the sliding frame 507. The front end of the connecting movable rod 508 is bolted to the clamping plate 509. The front part of the clamping plate 509 is in contact with the outer side of the circular workpiece 1.

[0022] Reference Figure 1 , Figure 2 and Figure 3 In a preferred embodiment, a motor housing 10 is bolted to the outside of a drive motor 501. The top of the motor housing 10 is bolted to the bottom of a limit frame 503. A linkage gear 9 is bolted to the bottom of the motor housing 10. A drive gear 8 is rotatably connected to the outside of the linkage gear 9. The drive gear 8 and the linkage gear 9 mesh with each other through a tooth groove. A second drive motor 7 is provided on the outside of the motor housing 10. The power output shaft of the second drive motor 7 is connected to the front end of the drive gear 8 through a bearing transmission connection. A processing table 2 is provided at the bottom of the circular workpiece 1. A lifting table 6 is bolted to the inside of the processing table 2. The lifting table 6 is located at the bottom of the circular workpiece 1. Both ends of the processing table 2 are bolted to connecting frames 4. The top of each connecting frame 4 is bolted to a connecting plate 3. The front end of the connecting plate 3 is rotatably connected to the bottom of the drive gear 8 and the linkage gear 9.

[0023] Reference Figure 2 and Figure 5In a preferred embodiment, an inner circular support assembly 11 is provided at the top of the lifting platform 6. The inner circular support assembly 11 includes an electrically driven telescopic rod 1101. The front end of the electrically driven telescopic rod 1101 is bolted to a sliding gear rod 1102, and the outer side of the sliding gear rod 1102 is slidably connected to a rotating gear 1103. The rotating gear 1103 and the sliding gear rod 1102 mesh with each other through a tooth groove. The top end of the rotating gear 1103 is bolted to a rotating rod 1105, and the outer side of the rotating rod 1105 is rotatably connected to a base plate 1104. The bottom end of the base plate 1104 is bolted to a connecting plate 12, and the front end of the connecting plate 12 is connected to the electrically driven telescopic rod 1101. The bottom ends of the retractable rod 1101 are connected by bolts. The outer side of the rotating rod 1105 is rotatably connected to a sliding plate 1106. The sliding plate 1106 is located above the base plate 1104 and inside the circular workpiece 1. The bottom end of the rotating rod 1105 is connected to a rotating limiting plate 1108 by bolts. Multiple sliding grooves are provided on the rotating limiting plate 1108. The inside of each sliding groove is slidably connected to a sliding rod 1107. The bottom end of the sliding rod 1107 is slidably connected to the top end of the sliding plate 1106. The outer side of each sliding rod 1107 is connected to an arc-shaped support plate 1109 by bolts. The outer side of the arc-shaped support plate 1109 is in contact with the inner side of the circular workpiece 1.

[0024] Working principle: When the workpiece is being machined into an inner circle, the drive motor 501 is started to drive the rotating lead screw 502 inside the limiting frame 503 to rotate. The sliding seat 504 located outside the rotating lead screw 502 slides inside the limiting frame 503. At the same time, the sliding frame 507, which is fixedly connected to the sliding seat 504, moves inward on the connecting movable rod 508. The outer side of the circular workpiece 1 is fixed by the opposing clamping of the clamping plate 509. If the workpiece is to be rotated at an angle, the drive motor 7 is started to drive the drive gear 8 to rotate. At the same time, the linkage gear 9, which meshes with the drive gear 8, drives the auxiliary support assembly 5 to rotate as a whole. The clamped circular workpiece 1 also achieves the function of rotating at an angle.

[0025] When the workpiece is being machined on the outer diameter, the lifting platform 6 drives the inner diameter support assembly 11 to be raised inside the circular workpiece 1. The electric drive telescopic rod 1101 is activated to drive the sliding gear rod 1102 to reciprocate, which in turn drives the rotating gear 1103 to rotate. At the same time, the rotating rod 1105 at the top of the rotating gear 1103 drives the sliding rod 1107 inside the rotating limit plate 1108 to reciprocate inside the slide plate 1106. The arc-shaped support plate 1109 outside the sliding rod 1107 then supports the inside of the circular workpiece 1.

[0026] The above description is merely a preferred embodiment of this utility model, but the protection scope of this utility model is not limited thereto. The substitutions may be replacements of some structures, devices, or method steps, or they may be complete technical solutions. Equivalent substitutions or modifications made based on the technical solution and inventive concept of this utility model should all be covered within the protection scope of this utility model.

Claims

1. An auxiliary support device for machining the inner and outer circles of a thin-walled workpiece, comprising a circular workpiece (1), characterized in that, The outer side of the circular workpiece (1) is provided with symmetrical auxiliary support components (5). The auxiliary support components (5) include a drive motor (501). The power output shaft of the drive motor (501) is connected to a rotating screw (502) through a bearing drive. A sliding seat (504) is movably connected to the outer side of the rotating screw (502). A connecting rotating frame (506) is movably connected to the front end of the rotating screw (502). A limiting frame (503) is fixedly connected to the bottom end of the connecting rotating frame (506). The rotating screw (502) is located inside the limiting frame (503). Rectangular through holes are provided on both sides of the limiting frame (503). The sliding seat (504) is movably connected inside the rectangular perforation. Both ends of the connecting rotating frame (506) are movably connected to the connecting movable rod (508). The outer side of the connecting movable rod (508) is movably connected to the sliding frame (507). The top of both ends of the sliding seat (504) is fixedly connected to the connecting U-shaped rod (505). The end of the connecting U-shaped rod (505) away from the sliding seat (504) is fixedly connected to the top of the sliding frame (507). The front end of the connecting movable rod (508) is fixedly connected to the clamping plate (509). The front end of the clamping plate (509) is in contact with the outer side of the circular workpiece (1).

2. The auxiliary support device for machining the inner and outer diameters of a thin-walled workpiece according to claim 1, characterized in that, The outer side of the drive motor (501) is fixedly connected to the motor housing (10), the top of the motor housing (10) is fixedly connected to the bottom of the limiting frame (503), and the bottom of the motor housing (10) is fixedly connected to the linkage gear (9).

3. The auxiliary support device for machining the inner and outer circles of a thin-walled workpiece according to claim 2, characterized in that, The outer side of the linkage gear (9) is movably connected to the drive gear (8). The drive gear (8) and the linkage gear (9) mesh with each other through a tooth groove. The outer side of the motor housing (10) is provided with a second drive motor (7). The power output shaft of the second drive motor (7) is connected to the front end of the drive gear (8) through a bearing transmission.

4. The auxiliary support device for machining the inner and outer diameters of a thin-walled workpiece according to claim 1, characterized in that, The bottom end of the circular workpiece (1) is provided with a processing table (2), and a lifting table (6) is fixedly connected inside the processing table (2). The lifting table (6) is located at the bottom end of the circular workpiece (1). Both ends of the processing table (2) are fixedly connected with connecting frames (4), and the top of the connecting frames (4) is fixedly connected with connecting plate one (3). The front end of the connecting plate one (3) is movably connected to the bottom end of the drive gear (8) and the linkage gear (9).

5. The auxiliary support device for machining the inner and outer diameters of a thin-walled workpiece according to claim 4, characterized in that, The top of the lifting platform (6) is provided with an inner circle support assembly (11). The inner circle support assembly (11) includes an electric drive telescopic rod (1101). The front end of the electric drive telescopic rod (1101) is fixedly connected to a sliding gear rod (1102), and the outer side of the sliding gear rod (1102) is movably connected to a rotating gear (1103). The rotating gear (1103) and the sliding gear rod (1102) mesh with each other through tooth grooves.

6. The auxiliary support device for machining the inner and outer diameters of a thin-walled workpiece according to claim 5, characterized in that, The top of the rotating gear (1103) is fixedly connected to a rotating rod (1105), and the outer side of the rotating rod (1105) is movably connected to a base plate (1104). The bottom end of the base plate (1104) is fixedly connected to a connecting plate two (12), and the front end of the connecting plate two (12) is fixedly connected to the bottom end of the electric drive telescopic rod (1101). The outer side of the rotating rod (1105) is movably connected to a sliding plate (1106), which is located above the base plate (1104) and inside the circular workpiece (1).

7. The auxiliary support device for machining the inner and outer diameters of a thin-walled workpiece according to claim 6, characterized in that, The bottom end of the rotating rod (1105) is fixedly connected to a rotation limiting plate (1108). The rotation limiting plate (1108) has multiple sliding grooves. The sliding rods (1107) are movably connected inside the sliding grooves. The bottom end of the sliding rods (1107) is movably connected to the top end of the sliding groove plate (1106). The outer side of the sliding rods (1107) is fixedly connected to an arc-shaped support plate (1109). The outer side of the arc-shaped support plate (1109) is in contact with the inner side of the circular workpiece (1).

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