Special tool for machining internal support of long-barrel thin-wall part
By designing a special tooling including connecting sleeves, support plates and bolts, the vibration knife and deformation problems of long-barrel workpieces are solved during processing, achieving efficient processing and cost savings.
Patent Information
- Application Number
- CN202422412739.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-08
- Publication Date
- 2025-08-12
- Estimated Expiration
- 2034-10-08
AI Technical Summary
Long barrel thin-walled workpieces are prone to vibrating knives and deformation during processing, making it difficult to ensure the tolerance of size and shape. The existing workpiece is costly and has poor versatility.
A special tooling including a connecting sleeve, a support plate, a connecting plate, a bolt, a nut and a tie rod is designed. By adjusting the position of the nut and the movement of the support plate, the support for long-cylinder thin-walled workpieces of different inner diameters and lengths is achieved to prevent vibration and deformation.
It improves processing efficiency and product quality, reduces production costs, avoids difficulties in tooling and disassembly, and has certain versatility.
Smart Images
Figure CN223211245U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of mechanical processing, and in particular relates to a special tool for processing internal supports of long cylindrical thin-walled parts. Background Art
[0002] Machining is a common method in the manufacturing industry, and long, thin-walled workpieces are a common type of workpiece. These workpieces are often precision-machined on lathes, achieving both internal and external shapes. However, during machining, these long, thin-walled parts often experience tool chatter and deformation, making it difficult to maintain the required dimensional and geometric tolerances. The difficulty of machining these workpieces is well known, significantly impacting both processing efficiency and product quality.
[0003] For some long, thin-walled parts, in order to prevent tool vibration and deformation during machining, the use of special tooling with internal support can significantly improve the machining efficiency and quality of the workpiece.
[0004] If a dedicated tooling is required for each long cylindrical thin-walled part, especially for a small number of such parts, the processing cost will increase significantly. This requires a more universal tooling fixture that can adapt to long cylindrical thin-walled workpieces within a certain size range for efficient and precise processing. Utility Model Content
[0005] The purpose of this utility model is to provide a special tool for machining long thin-walled workpieces to prevent tool vibration and deformation.
[0006] The purpose of this utility model is achieved through the following technical solutions:
[0007] A special tooling for preventing tool vibration and deformation when processing long cylindrical thin-walled workpieces, comprising two connecting sleeves, three supporting plates, 24 connecting plates, bolts, M6 nuts, sleeves, M10 nuts, three pull rods, and three stop nuts. One end of the three pull rods is connected to the three stop nuts and inserted into the two connecting sleeves. The 24 connecting plates are connected to the two connecting sleeves with bolts, M6 nuts and sleeves. The three supporting plates are then connected to the 24 connecting plates with bolts, M6 nuts and sleeves. The sleeves are installed between the bolts and the connecting plates. The other ends of the three pull rods are connected to the M10 nuts to complete the assembly.
[0008] Furthermore, there are 24 bolts, model M6×65 bolts; 24 M6 nuts; 48 sleeves; and 3 M10 nuts.
[0009] Beneficial effects of the utility model
[0010] The utility model is a special tool for machining internal supports of long cylindrical thin-walled parts. It has a simple structure, low manufacturing cost, and is easy to operate. It ensures the shape of the workpiece during machining and avoids the difficulty of disassembling the tooling fixture after machining.
[0011] The position of the nut can be adjusted for long, thin-walled workpieces with different inner diameters to meet the needs of internal support during processing, and it has a certain degree of versatility.
[0012] The utility model is a special tool for internal support during the processing of long cylindrical thin-walled parts, which solves the problems of tool vibration and deformation after processing long cylindrical thin-walled parts with different inner diameter specifications, improves processing efficiency, ensures product quality and saves production costs. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 A three-dimensional structural diagram of a special tool for machining internal supports for long cylindrical thin-walled parts of the utility model;
[0014] Figure 2 This is a structural front view of a special tool for processing internal supports for long cylindrical thin-walled parts according to the present invention;
[0015] Among them, 1-connecting sleeve; 2-support plate; 3-connecting plate; 4-M6×65 bolt; 5-M6 nut; 6-sleeve; 7-M10 nut; 8-pull rod; 9-stop nut.
[0016] Figure 3 For this purpose, a three-dimensional diagram of the connecting sleeve in the tooling;
[0017] Figure 4 For this purpose, a three-dimensional diagram of the stop nut in the tooling; DETAILED DESCRIPTION
[0018] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.
[0019] Example 1
[0020] A special tool with internal support, used for machining long thin-walled workpieces with inner diameters within a certain range ( Figure 1 ).
[0021] This tooling ( Figure 2 ) includes: 2 connecting sleeves 1, 3 supporting plates 2, 24 connecting plates 3, 24 bolts (M6×65) 4, 24 nuts (M6) 5, 48 sleeves 6, 3 nuts (M10) 7, 3 pull rods 8, and 3 stop nuts 9, which are used to solve the vibration and deformation of the tool during the processing of long cylindrical thin-walled workpieces.
[0022] The principle of this utility model is:
[0023] Before machining a long, thin-walled workpiece, connect three tie rods 8 with three retaining nuts 9 and insert them into two connecting sleeves 1. Then, use 12 M6×65 bolts 4, M6 nuts 5, and sleeves 6 to connect 24 connecting plates 3 to the two connecting sleeves 1. Sleeves 6 are installed between the M6×65 bolts 4 and the connecting plates 3, acting as sliding sleeves. Then, use 12 M6×65 bolts 4, M6 nuts 5, and sleeves 6 to connect three support plates 2 to the 24 connecting plates 3. Finally, connect three M10 nuts 7 to the other end of the tie rods 8 to complete the assembly. By rotating the M10 nuts 7, the relative distance between the two connecting sleeves 1 decreases, thereby driving the connecting plates 3 to move. The connecting plates 3 drive the radial expansion of the support plates through a planar four-bar mechanism based on the connecting rod principle, thus supporting the interior of the long, thin-walled workpiece.
[0024] The internal support of long cylindrical thin-walled workpieces of different sizes is achieved by adjusting the travel of the support plate.
[0025] For workpieces that exceed the stroke, the length of the connecting rod and the center distance of the mounting holes can be adjusted to accommodate long, thin-walled parts with too small or too large inner diameters. Adjusting the length of the support rod can also accommodate long, thin-walled parts with too small or too large lengths. For workpieces that are too long, multiple sets of fixtures can be placed together to provide internal support for the long, thin-walled workpiece.
[0026] Working process of this utility model:
[0027] During processing, the tooling is placed in an appropriate position inside the long cylindrical thin-walled workpiece. By rotating the M10 nut 7, the relative distance between the two connecting sleeves 1 is reduced, thereby driving the connecting plate 3 to move. The connecting plate 3 drives the support plate to expand radially through the planar four-bar mechanism, fits with the workpiece, and realizes support for the interior of the long cylindrical thin-walled workpiece.
[0028] After the processing is completed, the relative distance between the two connecting sleeves 1 is increased by rotating the M10 nut 7, thereby driving the connecting plate 3 to move. The connecting plate 3 drives the support plate to radially contract through the planar four-bar mechanism, and the tooling is removed.
[0029] For long, thin-walled workpieces that are extremely easy to deform or very thin, an expansion sleeve can be inserted into the outside of this tooling and placed into the workpiece to increase the support surface and prevent the workpiece from deforming.
Claims
1. A special tool for machining internal supports of long thin-walled parts, comprising two connecting sleeves (1), three support plates (2), 24 connecting plates (3), bolts (4), M6 nuts (5), sleeves (6), M10 nuts (7), three tie rods (8), and three stop nuts (9), characterized in that: One end of the three tie rods (8) is connected to three stop nuts (9) and inserted into the two connecting sleeves (1). The 24 connecting plates (3) are connected to the two connecting sleeves (1) using bolts (4), M6 nuts (5) and sleeves (6). The three support plates (2) are then connected to the 24 connecting plates (3) using bolts (4), M6 nuts (5) and sleeves (6). The sleeves (6) are installed between the bolts (4) and the connecting plates (3). The other ends of the three tie rods (8) are connected to M10 nuts (7) to complete the assembly.
2. The special tooling for machining internal supports of long thin-walled parts according to claim 1 is characterized in that: There are 24 bolts (4), and the model is M6×65 bolts.
3. The special tooling for machining internal supports of long thin-walled parts according to claim 1 is characterized in that: There are 24 M6 nuts (5).
4. The special tooling for machining internal supports of long thin-walled parts according to claim 1 is characterized in that: Said sleeves (6) are 48 pieces.
5. The special tooling for machining internal supports of long thin-walled parts according to claim 1 is characterized in that: There are three M10 nuts (7).