Large thin-wall workpiece turning vibration reduction tool

Abstract

The invention relates to a large thin-wall workpiece turning vibration reduction tool which comprises a fixed vibration reduction mechanism and a fixed vibration reduction mechanism, the fixed vibration reduction mechanism comprises a plurality of vibration reduction rings, the inner sides of the vibration reduction rings are connected with vibration reduction structures, the vibration reduction rings are arranged outside a machined workpiece in a surrounding mode and connected with a lathe faceplate, and the vibration reduction structures provide damping force for workpiece vibration; the movable vibration reduction mechanism comprises a connecting base, a vibration reduction plate and a vibration reduction assembly, the vibration reduction plate can move relative to the connecting base in the first direction, the vibration reduction assembly comprises a displacement amplification structure and a damper, the displacement amplification structure is connected with the vibration reduction plate and the damper, and the displacement of the vibration reduction plate is amplified and input into the damper; the vibration reduction plate is attached to the outer wall or the inner wall of the turning position of the machined workpiece, the first direction is parallel to a first straight line which passes through a cutting point and perpendicularly intersects with the axis of the machined workpiece, and the connecting base is fixed relative to the machined workpiece in the first direction. Vibration in the workpiece machining process can be reduced, machining can be conducted under high machining technological parameters, and high quality and high efficiency of workpiece machining are guaranteed.

Description

Technical Field

[0001] The invention relates to the field of thin-wall workpiece processing technology, and in particular to a vibration-reducing tool for turning large thin-wall workpieces. Background Art

[0002] Thin-walled workpieces are widely used in aerospace, petrochemical and other fields due to their light weight, compact structure and high specific strength. However, due to the thin wall thickness and poor rigidity of thin-walled workpieces, especially large thin-walled workpieces, they are easily affected by cutting force, gravity and other factors during the turning process, which is a recognized difficulty in mechanical processing.

[0003] At present, the main method of reducing the machining vibration of large thin-walled workpieces during turning is to reduce the process cutting parameters (such as reducing the spindle speed of the machine tool, reducing the amount of cutting, etc.). In the face of the high quality and high efficiency requirements of large thin-walled workpiece machining, it is necessary to design a vibration reduction tooling to reduce the vibration effect during the workpiece turning process to ensure the high quality and high efficiency of workpiece machining. Summary of the invention

[0004] Based on the above description, the present invention provides a vibration reduction tooling for large thin-walled workpiece turning to reduce the vibration impact during the workpiece turning process and ensure high quality and high efficiency of workpiece processing.

[0005] The technical solution of the present invention to solve the above technical problems is as follows: The present application provides a vibration reduction tooling for turning large thin-walled workpieces, and the technical solution adopted is as follows: A vibration reduction tool for turning a large thin-walled workpiece, comprising: A fixed vibration damping mechanism, comprising a plurality of vibration damping rings, the inner side of which is connected to a vibration damping structure, the vibration damping rings are coaxially arranged outside the workpiece being processed and connected to the lathe faceplate, the plurality of vibration damping rings are arranged at intervals in the axial direction of the workpiece being processed, and the vibration damping structure is used to provide a damping force for the vibration of the workpiece when the vibration damping rings are arranged outside the workpiece being processed; A movable vibration reduction mechanism, comprising a connecting seat, a vibration reduction plate and a vibration reduction assembly, wherein the vibration reduction plate is connected to the connecting seat and can move relative to the connecting seat in a first direction, and the vibration reduction assembly comprises a displacement amplification structure and a damper, wherein the damper is connected to the connecting seat, and the displacement amplification structure connects the vibration reduction plate and the damper, and the displacement amplification structure is used to amplify the displacement of the vibration reduction plate relative to the connecting seat in the first direction and input it into the damper; Among them, the vibration damping plate is used to fit the outer wall or inner wall of the turning position of the workpiece being processed, and the first direction is parallel to the first straight line passing through the cutting point and intersecting the axis of the workpiece being processed perpendicularly, and the connecting seat is used to be relatively fixed to the workpiece being processed in the first direction.

[0006] Preferably, the displacement amplification structure comprises: An active rack, which is fixed to the vibration damping plate and has a length direction parallel to the first direction; A driving gear, which is rotatably connected to the connecting seat and meshes with the driving rack; A driven gear, which is coaxially fixed with the driving gear and has a diameter larger than that of the driving gear; A driven rack is connected to the damper input end and meshes with the driven gear.

[0007] Preferably, the vibration damping structure includes a plurality of vibration damping springs, the axis of the vibration damping springs intersects the axis of the vibration damping ring at right angles, one end of the vibration damping spring is connected to the vibration damping ring, and the other end is connected to a supporting block, the supporting block can move relative to the vibration damping ring along the axial direction of the vibration damping spring, and the supporting block is used to abut against the workpiece being processed when the vibration damping ring is arranged outside the workpiece being processed.

[0008] Preferably, the vibration damping structure includes a plurality of vibration damping springs, the axis of the vibration damping springs intersects the axis of the vibration damping ring at right angles, one end of the vibration damping spring is connected to the vibration damping ring, and the other end is connected to a supporting block, the supporting block can move relative to the vibration damping ring along the axial direction of the vibration damping spring, and the supporting block is supported by the workpiece when the vibration damping ring is arranged outside the workpiece being processed.

[0009] Preferably, the side of the vibration damping plate that is used to fit the workpiece being processed is configured as a curved surface that matches the workpiece being processed.

[0010] Preferably, the damper is a spring damper.

[0011] Preferably, adjacent vibration-damping rings are connected via a connecting screw, and the connecting screw passes through two adjacent vibration-damping rings and is fixed to the two vibration-damping rings via a nut.

[0012] Preferably, the vibration damping plate is connected to the connecting seat via a guide shaft, the guide shaft is parallel to the first direction and passes through the connecting seat, and the guide shaft can move axially relative to the guide seat, one end of the guide shaft is connected to a mounting seat, and the vibration damping plate is connected to the mounting seat via bolts.

[0013] Compared with the prior art, the technical solution of the present application has at least the following beneficial technical effects: The present application sets a fixed vibration reduction mechanism and a movable vibration reduction mechanism. During processing, after the workpiece is clamped and fixed on the lathe faceplate, multiple vibration reduction rings in the fixed vibration reduction mechanism are arranged outside the workpiece and fixed to the lathe faceplate, and the vibration reduction structure inside the vibration reduction ring abuts against the outer wall of the workpiece. During the process of turning the inner circle or outer circle, the vibration of the workpiece causes the vibration reduction structure to generate a damping force to dissipate the vibration energy, and the vibration reduction ring supports the vibration reduction structure. The vibration reduction structure and the vibration reduction ring cooperate to reduce the vibration of the workpiece during processing. At the same time, when the workpiece is clamped and fixed on the lathe faceplate, the vibration reduction plate of the movable vibration reduction mechanism is made to fit the outer wall or inner wall of the turning position of the workpiece. Since the cutting position is the position where the turning tool contacts the workpiece, when the workpiece is processing the inner circle, the vibration reduction plate fits the outer wall of the workpiece, and when the workpiece is processing the outer circle, the vibration reduction plate fits the inner wall of the workpiece, and the relative position of the connecting seat and the turning tool remains unchanged. When the workpiece rotates with the lathe faceplate, the vibration reduction plate always fits the side wall of the cutting position of the workpiece. By setting the vibration damping plate and the connecting seat to be relatively movable and setting the vibration damping assembly, the vibration at the cutting position of the workpiece is transmitted to the vibration damping plate, thereby driving the vibration damping plate to move relative to the connecting seat in the first direction. The displacement of the vibration damping plate is amplified by the displacement amplification structure and then input into the damper. The damper generates a damping force to dissipate energy, thereby reducing the vibration at the cutting position of the workpiece, and reducing the vibration transmitted from the cutting position of the workpiece to other positions, thereby reducing the overall vibration of the workpiece. In addition, since the displacement of the vibration damping plate is amplified and input into the damper, the tiny vibration of the workpiece can be amplified and input into the damper, which can generate a larger damping force for the smaller vibration of the workpiece, with higher sensitivity and better vibration damping effect. Therefore, the present application can reduce the vibration of the workpiece during processing, reduce the influence of vibration on the processing quality of the workpiece, and can be processed under higher processing parameters, improve processing efficiency, and ensure high quality and high efficiency of workpiece processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A schematic diagram of the structure of a vibration reduction tooling for machining large thin-walled workpieces provided by an embodiment of the present invention; Figure 2 A schematic diagram of the structure of a vibration-damping ring in a vibration-damping tool for machining a large thin-walled workpiece provided by an embodiment of the present invention, wherein the vibration-damping structure is an elastic rubber ring; Figure 3 A schematic diagram of the structure of a vibration-damping ring in a vibration-damping tooling for turning a large thin-walled workpiece provided by an embodiment of the present invention, wherein the vibration-damping structure includes a vibration-damping spring, a supporting block and a connecting rod; Figure 4 A schematic structural diagram of an active vibration reduction mechanism in a vibration reduction tooling for large thin-walled workpiece turning provided by an embodiment of the present invention.

[0015] Description of reference numerals: 1. Fixed vibration reduction mechanism; 11. Vibration reduction ring; 12. Elastic rubber ring; 13. Vibration reduction spring; 14. Retaining block; 15. Connecting rod; 16. Connecting screw; 17. Fixed screw; 2. Movable vibration reduction mechanism; 21. Connecting seat; 22. Vibration reduction plate; 23. Damper; 24. Shifting and amplifying structure; 241. Active rack; 242. Active gear; 243. Driven gear; 244. Driven rack; 25. Guide shaft; 26. Mounting seat. DETAILED DESCRIPTION

[0016] In order to facilitate understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. Embodiments of the present application are provided in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.

[0017] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0018] It will be appreciated that spatial relationship terms such as "under," "beneath," "below," "under," "above," "above," etc., may be used herein to describe the relationship of an element or feature shown in the figures to other elements or features. It will be appreciated that, in addition to the orientations shown in the figures, spatial relationship terms also include different orientations of the device in use and operation. For example, if the device in the accompanying drawings is flipped, an element or feature described as "under other elements" or "under it" or "under it" will be oriented as being "above" the other elements or features. Thus, the exemplary terms "under" and "under" may include both upper and lower orientations. In addition, the device may also include additional orientations (e.g., rotated 90 degrees or other orientations), and the spatial descriptors used herein are interpreted accordingly.

[0019] It should be noted that when an element is considered to be "connected" to another element, it can be directly connected to the other element, or connected to the other element through an intermediate element. The "connection" in the following embodiments should be understood as "electrical connection", "communication connection", etc. if the connected circuits, modules, units, etc. have electrical signals or data transmission between each other.

[0020] When used herein, the singular forms "a", "an", and "said / the" may also include plural forms, unless the context clearly indicates otherwise. It should also be understood that the terms "include / comprise" or "have" etc. specify the presence of stated features, wholes, steps, operations, components, parts or combinations thereof, but do not exclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts or combinations thereof.

[0021] Reference Figure 1-4 As shown, an embodiment of the present application provides a vibration reduction tooling for turning a large thin-walled workpiece, comprising a fixed vibration reduction mechanism 1 and a movable vibration reduction mechanism 2.

[0022] Reference Figure 1-3 As shown, the fixed vibration damping mechanism 1 includes a plurality of vibration damping rings 11, the inner side of the vibration damping rings 11 is connected to a vibration damping structure, the vibration damping rings 11 are used to be coaxially arranged outside the workpiece to be processed and connected to the lathe faceplate, and the plurality of vibration damping rings 11 are arranged at intervals in the axial direction of the workpiece to be processed, and the vibration damping structure is used to provide damping force for the vibration of the workpiece when the vibration damping rings 11 are arranged outside the workpiece to be processed.

[0023] Reference Figure 2 As shown, specifically, the vibration reduction structure may include an elastic rubber ring 12, which is coaxial with the vibration reduction ring 11 and is fixed to the vibration reduction ring 11 by adhering to the inner wall of the vibration reduction plate 22. The elastic rubber ring 12 is used to abut against the workpiece when the vibration reduction ring 11 is arranged outside the workpiece, so as to provide damping force through the elastic rubber ring 12 when the workpiece vibrates, thereby achieving a vibration reduction effect.

[0024] Or, refer to Figure 3 As shown, in other embodiments, the vibration reduction structure may include a plurality of vibration reduction springs 13, the axis of the vibration reduction spring 13 intersects the axis of the vibration reduction ring 11 perpendicularly, one end of the vibration reduction spring 13 is connected to the vibration reduction ring 11, and the other end is connected to a support block 14, the support block 14 can move relative to the vibration reduction ring 11 along the axial direction of the vibration reduction spring 13, and the support block 14 is used to support the workpiece when the vibration reduction ring 11 is arranged outside the workpiece. When the workpiece vibrates, the workpiece moves relative to the vibration reduction ring 11, thereby driving the support block 14 to move and compress the vibration reduction spring 13, and the vibration reduction spring 13 generates a damping force, thereby achieving a vibration reduction effect and reducing the vibration of the workpiece. Specifically, the abutment block 14 is connected to the vibration damping ring 11 through a connecting rod 15, the axis of the connecting rod 15 is coaxial with the vibration damping spring 13, the connecting rod 15 passes through the side wall of the vibration damping ring 11 and can move axially relative to the vibration damping ring 11, one end of the abutment block 14 is fixed to the connecting rod 15, and the vibration damping spring 13 is sleeved on the outside of the connecting rod 15, and the two ends thereof are respectively abutted against the inner wall of the vibration damping ring 11 and the abutment block 14.

[0025] During machining, after the workpiece is clamped and fixed on the lathe faceplate, multiple vibration damping rings 11 in the fixed vibration damping mechanism 1 are arranged outside the workpiece and fixed to the lathe faceplate, and the vibration damping structure inside the vibration damping ring 11 abuts against the outer wall of the workpiece. During the process of turning the inner circle or outer circle, since the workpiece mainly vibrates in the radial direction, the vibration of the workpiece causes the vibration damping structure to generate a damping force, so that the vibration of the workpiece during machining is reduced through the cooperation of the vibration damping structure and the vibration damping ring 11.

[0026] Reference Figure 1 As shown, specifically, in order to facilitate fixing multiple vibration damping rings 11 on the lathe faceplate, adjacent vibration damping rings 11 are connected by connecting screws 16, and the connecting screws 16 pass through two adjacent vibration damping rings 11 and are fixed to the two vibration damping rings 11 through nuts. Specifically, a hole for the connecting screw 16 to pass through is provided on the vibration damping ring 11, and two nuts are connected to each end of the connecting screw 16. The two nuts at one end of the connecting screw 16 abut against the vibration damping ring 11 on both sides of a vibration damping ring 11, thereby fixing the connecting screw 16 to the vibration damping ring 11. Two adjacent vibration damping rings 11 are connected by multiple connecting screws 16, and the multiple connecting screws 16 are distributed at intervals along the circumference of the vibration damping ring 11 to improve the connection strength. Among them, the vibration damping ring 11 close to the lathe faceplate is also fixed to the lathe faceplate by multiple fixing screws 17, and the fixing screws 17 are also fixed to the vibration damping ring 11 through nuts, and the fixing screws 17 are directly threadedly assembled on the lathe faceplate. The purpose of fixing the vibration damping ring 11 to the lathe faceplate is achieved. For cylindrical workpieces, the connecting screw 16 and the fixing screw 17 are parallel to the workpiece axis. For truncated cone-shaped workpieces with variable diameters, the connecting screw 16 axis is parallel to the workpiece generatrix, and the fixing screw 17 is parallel to the workpiece axis.

[0027] Reference Figure 1 and Figure 4 As shown, the movable vibration reduction mechanism 2 includes a connection seat 21, a vibration reduction plate 22 and a vibration reduction assembly. The vibration reduction plate 22 is connected to the connection seat 21 and can move relative to the connection seat 21 along a first direction. The vibration reduction assembly includes a displacement amplification structure 24 and a damper 23. The damper 23 is connected to the connection seat 21. The displacement amplification structure 24 connects the vibration reduction plate 22 and the damper 23. The displacement amplification structure 24 is used to amplify the displacement of the vibration reduction plate 22 relative to the connection seat 21 in the first direction and input it to the damper 23. Among them, the vibration reduction plate 22 is used to fit the outer wall or inner wall of the turning position of the workpiece to be processed, and the first direction is parallel to a first straight line passing through the cutting point and perpendicularly intersecting the axis of the workpiece to be processed. The connection seat 21 is used to be fixed relative to the workpiece to be processed in the first direction.

[0028] Reference Figure 1 and Figure 4As shown, when the workpiece is clamped and fixed on the lathe faceplate, the vibration damping plate 22 of the movable vibration damping mechanism 2 is made to fit with the outer wall or inner wall of the turning position of the workpiece. Since the cutting position is the position where the turning tool contacts the workpiece, when the workpiece is processing the inner circle, the vibration damping plate 22 fits with the outer wall of the workpiece, and when the workpiece is processing the outer circle, the vibration damping plate 22 fits with the inner wall of the workpiece, and the relative position of the connecting seat 21 and the turning tool remains unchanged. When the workpiece rotates with the lathe faceplate, the vibration damping plate 22 always fits with the side wall of the cutting position of the workpiece. Through the relative movable arrangement between the vibration damping plate 22 and the connecting seat 21 and the arrangement of the vibration damping assembly, the vibration at the cutting position of the workpiece is transmitted to the vibration damping plate 22, thereby driving the vibration damping plate 22 to move relative to the connecting seat 21 along the first direction. The displacement of the vibration damping plate 22 is amplified by the displacement amplification structure 24 and input into the damper 23. The damper 23 generates a damping force to dissipate energy, thereby reducing the vibration of the cutting position of the workpiece, and reducing the vibration transmitted from the cutting position of the workpiece to other positions, thereby reducing the overall vibration of the workpiece. In addition, since the displacement of the vibration damping plate 22 is amplified and input into the damper 23, the tiny vibration of the workpiece can be amplified and input into the damper 23, and a larger damping force can be generated for the smaller vibration of the workpiece, with higher sensitivity and better vibration damping effect. The vibration damping effect of the movable vibration damping mechanism 2 on the local cutting position combined with the overall vibration damping effect of the fixed vibration damping mechanism 1 can effectively reduce the vibration of the workpiece during processing, reduce the influence of vibration on the processing quality of the workpiece, and can be processed under higher processing parameters, improve processing efficiency, and ensure high quality and high efficiency of workpiece processing.

[0029] Reference Figure 4 As shown, the displacement amplification structure 24 includes an active rack 241, a active gear 242, a driven gear 243 and a driven rack 244. The active rack 241 is fixed to the vibration damping plate 22 and its length direction is parallel to the first direction. The active gear 242 is rotatably connected to the connecting seat 21 and meshes with the active rack 241. The driven gear 243 is coaxially fixed with the active gear 242 and its diameter is larger than that of the active gear 242. The driven rack 244 is connected to the input end of the damper 23 and meshes with the driven gear 243.

[0030] Reference Figure 4As shown, specifically, in order to achieve a stable connection between the vibration damping plate 22 and the connecting seat 21, the vibration damping plate 22 is connected to the connecting seat 21 through a guide shaft 25. The guide shaft 25 is parallel to the first direction and passes through the connecting seat 21, and the guide shaft 25 can move relative to the guide seat in the axial direction. One end of the guide shaft 25 is connected to a mounting seat 26, and the vibration damping plate 22 is connected to the mounting seat 26 by bolts. In this embodiment, a plurality of guide shafts 25 are provided and one mounting seat 26 is provided to improve the stability of the vibration damping plate 22 moving along the first direction and limit the rotation of the vibration damping plate 22. The driving rack 241 is parallel to the axis of the guide shaft 25 in the length direction and is fixedly installed on a guide shaft 25. The driving gear 242 and the driven gear 243 are fixedly connected through a coaxial connecting shaft, and the connecting shaft is rotatably installed on the connecting seat 21 through a bearing.

[0031] Reference Figure 4 As shown, the damper 23 may be a spring damper, and correspondingly, the axis of its input shaft is perpendicular to the axis of the connecting shaft, the length direction of the driven rack 244 is parallel to the axis of the input shaft of the damper 23, and the driven rack 244 is fixed to the input shaft of the damper 23. The use of a spring damper can quickly and automatically reset, so that the vibration damping plate 22 remains in a state of being in contact with the workpiece to stably transmit the vibration of the workpiece to the damper 23, thereby improving the vibration reduction effect.

[0032] Furthermore, the side of the vibration damping plate 22 that is used to fit the workpiece to be processed is set as a curved surface that matches the workpiece to be processed, so that the contact area between the vibration damping plate 22 and the workpiece to be processed is larger, thereby ensuring the vibration damping effect. The vibration damping plate 22 is connected to the mounting seat 26 by bolts, so that it is convenient to replace the appropriate vibration damping plate 22 according to the processing position of the workpiece (inner circle or outer circle), and for workpieces of variable diameter such as truncated cones, different vibration damping plates 22 can be replaced when the turning tool is turning different sections of the workpiece in the axial direction to ensure that the vibration damping plate 22 has a larger contact area with the workpiece to better exert the vibration damping effect.

[0033] In the actual processing process, the workpiece is usually clamped and fixed on the lathe faceplate with the axis vertical, and the workpiece is driven to rotate by the lathe faceplate. The turning tool moves along the axial direction of the workpiece (i.e., the vertical direction) to process the turning surface of the workpiece, and for workpieces with variable diameters such as truncated cones, the turning tool also needs to move along the radial direction of the workpiece (horizontal direction) to maintain contact with the processing surface to complete the processing. Therefore, when installing the active vibration damping mechanism 2, for cylindrical workpieces, it is necessary to drive the active vibration damping mechanism 2 to move synchronously with the turning tool in the axial direction of the workpiece through an external driving mechanism. For workpieces with variable diameters such as truncated cones, it is necessary to drive the active vibration damping mechanism 2 to move synchronously with the turning tool in the axial and radial directions of the workpiece through an external driving mechanism, so as to achieve the purpose of keeping the vibration damping plate 22 in contact with the side wall of the workpiece turning position. The specific driving method can be achieved through commonly used driving mechanisms such as lifting platforms and horizontal slides. Relevant technical personnel can select a suitable driving mechanism according to actual conditions and needs.

[0034] For a large workpiece, the workpiece can be processed in sections in the axial direction, and the vibration-damping ring 11 is not provided in the processing section to avoid interference of the vibration-damping ring 11 with the turning tool and the movable vibration-damping mechanism 2 .

[0035] Reference Figure 1 As shown, in this embodiment, the processing of a frustoconical cylindrical workpiece is used as an illustration. When processing the inner circle, the small diameter end of the workpiece is fixed on the lathe faceplate downward, and when processing the outer circle, the large diameter end of the workpiece is fixed on the lathe faceplate downward.

[0036] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A vibration reduction tool for turning large thin-walled workpieces, characterized in that: include: A fixed vibration damping mechanism (1), comprising a plurality of vibration damping rings (11), the inner side of each vibration damping ring (11) being connected to a vibration damping structure, the vibration damping ring (11) being coaxially arranged outside a workpiece to be processed and connected to a lathe faceplate, the plurality of vibration damping rings (11) being arranged at intervals in the axial direction of the workpiece to be processed, the vibration damping structure being used to provide a damping force for the vibration of the workpiece when the vibration damping ring (11) is arranged outside the workpiece to be processed; A movable vibration reduction mechanism (2), comprising a connecting seat (21), a vibration reduction plate (22) and a vibration reduction assembly, wherein the vibration reduction plate (22) is connected to the connecting seat (21) and can move relative to the connecting seat (21) along a first direction, and the vibration reduction assembly comprises a displacement amplification structure (24) and a damper (23), wherein the damper (23) is connected to the connecting seat (21), and the displacement amplification structure (24) connects the vibration reduction plate (22) and the damper (23), and the displacement amplification structure (24) is used to amplify the displacement of the vibration reduction plate (22) relative to the connecting seat (21) in the first direction and input it into the damper (23); The vibration damping plate (22) is used to fit the outer wall or inner wall of the turning position of the workpiece being processed, and the first direction is parallel to a first straight line passing through the cutting point and perpendicularly intersecting the axis of the workpiece being processed, and the connecting seat (21) is used to be fixed relative to the workpiece being processed in the first direction.

2. The vibration reduction tooling for turning large thin-walled workpieces according to claim 1 is characterized in that: The displacement amplification structure (24) comprises: An active rack (241), which is fixed to the vibration damping plate (22) and has a length direction parallel to the first direction; A driving gear (242) rotatably connected to the connecting seat (21) and meshing with the driving rack (241); A driven gear (243) which is coaxially fixed with the driving gear (242) and has a diameter greater than that of the driving gear (242); A driven rack (244) is connected to the input end of the damper (23) and meshes with the driven gear (243).

3. The vibration reduction tooling for turning large thin-walled workpieces according to claim 1 is characterized by: The vibration-damping structure comprises an elastic rubber ring (12) which is coaxial with the vibration-damping ring (11) and fits against the inner wall of the vibration-damping ring (11). The elastic rubber ring (12) is used to abut against the workpiece being processed when the vibration-damping ring (11) is arranged outside the workpiece being processed.

4. The vibration reduction tooling for turning large thin-walled workpieces according to claim 1 is characterized in that: The vibration-damping structure comprises a plurality of vibration-damping springs (13), the axes of the vibration-damping springs (13) intersecting perpendicularly with the axes of the vibration-damping rings (11), one end of the vibration-damping springs (13) being connected to the vibration-damping rings (11), and the other end being connected to a supporting block (14), the supporting block (14) being movable relative to the vibration-damping rings (11) along the axial direction of the vibration-damping springs (13), and the supporting block (14) being used to support the workpiece being processed when the vibration-damping rings (11) are arranged outside the workpiece being processed.

5. The vibration reduction tooling for turning large thin-walled workpieces according to claim 1 is characterized by: The side of the vibration damping plate (22) used to fit the workpiece being processed is set as a curved surface that matches the workpiece being processed.

6. The vibration reduction tooling for turning large thin-walled workpieces according to claim 1 is characterized by: The damper (23) is a spring damper.

7. The vibration reduction tooling for turning large thin-walled workpieces according to claim 1 is characterized by: Adjacent vibration damping rings (11) are connected via a connecting screw (16), and the connecting screw (16) passes through two adjacent vibration damping rings (11) and is fixed to the two vibration damping rings (11) via a nut.

8. The vibration reduction tooling for turning large thin-walled workpieces according to claim 1 is characterized by: The vibration damping plate (22) is connected to the connecting seat (21) via a guide shaft (25); the guide shaft (25) is parallel to the first direction and passes through the connecting seat (21); the guide shaft (25) is movable relative to the guide seat in the axial direction; one end of the guide shaft (25) is connected to a mounting seat (26); and the vibration damping plate (22) is connected to the mounting seat (26) via bolts.

Images