Device for solving turning deformation of aluminum alloy thin-wall cabin part
By improving the clamping method, using combination devices such as clamping, locking screw sleeves, etc., it provides axial tensioning force and radial support for aluminum alloy thin-walled cabin parts, solving the deformation problem of thin-walled parts during vehicle processing and improving processing quality and efficiency.
Patent Information
- Application Number
- CN202422730250.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-08
- Publication Date
- 2025-08-22
- Estimated Expiration
- 2034-11-08
AI Technical Summary
During the processing of the vehicle, aluminum alloy thin-walled cabin parts are prone to vibration and deformation due to the combined action of clamping force and cutting force, affecting the dimensional accuracy, shape, position accuracy and surface roughness of the workpiece.
A combination device of clamping, locking screw sleeve, positioning screw sleeve, centering block, mandrel and cover plate is adopted to provide stable support in combination with a compression spring to prevent vibration and deformation by applying axial tension force and radial support.
It improves the dimensional accuracy, shape control, position accuracy and surface smoothness of the workpiece, reduces machining errors, improves machining efficiency and safety, and adapts to workpieces of different sizes.
Smart Images
Figure CN223251149U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the field of lathe jigs, in particular to a device for solving the deformation of aluminum alloy thin-wall cabin parts during lathe processing. Background Art
[0002] Thin-walled parts are widely used in various industrial fields due to their light weight, material conservation, and compact structure. However, thin-walled parts are difficult to machine and are typically weak in rigidity. During finishing operations, part rigidity is poor, and the combined effects of clamping and cutting forces cause vibration and deformation, affecting the workpiece's dimensional accuracy, shape, positional accuracy, and surface roughness. During the external cylindrical finishing process, when measuring the workpiece on the fixture after machining, the dimensional accuracy meets the design requirements. However, after removing the workpiece and measuring it again, the external cylindrical dimensions and threads are significantly deformed, and the measuring tool measurement fails to meet the requirements. Utility Model Content
[0003] The purpose of the utility model is to provide a device for solving the deformation of aluminum alloy thin-wall cabin parts during machining, so as to solve the problem that the thin-wall parts are deformed during machining, resulting in low machining quality.
[0004] In order to solve the above problems, the utility model discloses a device for solving the deformation of aluminum alloy thin-walled cabin parts during turning, including a clamping body, a locking screw sleeve, a positioning screw sleeve, a centering block, a core shaft and a cover plate. The locking screw sleeve is arranged on the clamping body, and the clamping body and the centering block are installed on the core shaft through a flat key. An internal positioning thread is arranged on the inner side of the locking screw sleeve, a first locking nut is arranged on the core shaft, and the first locking nut is arranged on one side of the centering block. The cover plate is sleeved on the end of the core shaft, and a second locking nut is provided on the core shaft, and the second locking nut is arranged on one side of the cover plate.
[0005] As a further improvement of the above technical solution:
[0006] A support block is slidably arranged on the core shaft, and a compression spring is arranged on one side of the support block.
[0007] A third locking nut is provided on the core shaft, and the third locking nut is provided on one side of the support block.
[0008] One end of the support block is a tapered structure.
[0009] The first locking nut includes two nuts.
[0010] Compared with the prior art, the beneficial effects of the present invention are:
[0011] Improve dimensional accuracy: By applying axial tension on the spindle end through the positioning screw sleeve, the workpiece is ensured to remain stable during the processing, avoiding vibration and deformation caused by the combined effect of clamping force and cutting force, thereby improving the dimensional accuracy of the workpiece.
[0012] Improved shape control: The centering block fits tightly against the clamping body and is secured against loosening by the first locking nut, ensuring that the workpiece does not rotate due to vibration during machining, thereby improving shape control of the workpiece.
[0013] Enhanced positional accuracy: The support block slides on the mandrel and is equipped with a compression spring to provide radial force, providing support for thin-walled cabin parts and ensuring that the workpiece maintains the correct position during machining, thereby enhancing positional accuracy.
[0014] Reduce surface roughness: Through the improved clamping method, elastic and torsional deformation during the processing is avoided, making the workpiece surface smoother and reducing surface roughness.
[0015] Improve processing efficiency: The device is reasonably designed, easy to operate, and can be quickly installed and adjusted, which improves processing efficiency.
[0016] Strong adaptability: The device is suitable for thin-walled cabin parts of different diameters. By adjusting the position of the positioning screw sleeve and the fixation of the locking screw sleeve, it can adapt to workpieces of different sizes.
[0017] Reduce machining errors: The lathe tailstock provides support for the mandrel, which further reduces errors during machining and improves machining quality.
[0018] Improve safety: The device is reasonably designed and easy to operate, which reduces risks during operation and improves processing safety.
[0019] In summary, the device of this embodiment for solving the deformation of aluminum alloy thin-walled cabin parts during turning effectively improves the processing quality of the workpiece and the processing efficiency by improving the clamping method. It has strong adaptability, simple operation, high safety, and significant beneficial effects. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 This is a schematic diagram of the thin-walled cabin structure of the utility model;
[0021] Figure 2 This is a schematic diagram of the overall structure of the utility model;
[0022] Figure 3 For this utility model Figure 2 Enlarged structural diagram at point B in the middle.
[0023] Figure numerals: 1. Clamp body; 10. Compression spring; 11. First locking nut; 13. Flat key; 2. Locking screw sleeve; 21. Internal positioning thread; 3. Positioning screw sleeve; 4. Centering block; 5. Core shaft; 6. Support block; 7. Third locking nut; 8. Cover plate; 9. Second locking nut. DETAILED DESCRIPTION
[0024] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.
[0025] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," "the other end," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0026] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "connected," etc. should be understood in a broad sense. For example, "connected" can mean a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be internal communication between two components. Those skilled in the art will be able to understand the specific meanings of the above terms in this utility model based on the specific circumstances.
[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0028] like Figure 1 As shown in the figure, the thin-walled cabin processed in this embodiment has a small wall thickness and a ratio of circle diameter to wall thickness D / δ=50-150. Under the combined action of clamping force and cutting force, vibration and deformation occur, affecting the dimensional accuracy, shape, position accuracy and surface roughness of the workpiece.
[0029] like Figure 2 and Figure 3As shown, the device of this embodiment for solving the deformation of aluminum alloy thin-wall cabin parts during lathe processing includes a clamping body 1, a locking screw sleeve 2, a positioning screw sleeve 3, a centering block 4, a core shaft 5 and a cover plate 8.
[0030] The locking nut 2 is installed on the clamp body 1 through a locking screw 12. An internal positioning thread 21 is provided on the inner side of the locking nut 2. The thin-walled cabin body is preliminarily positioned by cooperating with the internal positioning thread 21 and the thread at the end of the thin-walled cabin body. The clamp body 1 and the centering block 4 are installed on the core shaft 5 through a flat key 13, so that the clamp body 1 and the centering block 4 move with the core shaft 5. A first locking nut 11 is provided on the core shaft 5. The first locking nut 11 is provided on one side of the centering block 4. The centering block 4 is tightly fitted to the clamp body 1 by adjusting the first locking nut 11. In order to prevent it from rotating due to vibration, the first locking nut 11 uses two nuts to prevent loosening.
[0031] The cover plate 8 is sleeved on the end of the core shaft 5 . The core shaft 5 is provided with a second locking nut 9 . The second locking nut 9 is arranged on one side of the cover plate 8 .
[0032] A support block 6 is slidably mounted on the core shaft 5, and a compression spring 10 is mounted on one side of the support block 6. A third locking nut 7 is mounted on the core shaft 5, and the third locking nut 7 is mounted on one side of the support block 6. One end of the support block 6 is a tapered structure.
[0033] During use, the clamp body 1 transmits power to the centering block 4 and the core shaft 5 through the flat key 13, and the centering block 4 is pressed against the clamp body 1 by the first locking nut 11. The positioning screw sleeve 3 is evenly distributed with 12 wrench holes, which can be screwed on the thread of the centering block 4, and this thread is left-handed. The clamp body 1 and the locking screw sleeve 2 are fixed by a locking screw 12. There are four windows on the locking screw sleeve 2, and a tightening rod can be inserted through its window into the wrench hole to screw the positioning screw sleeve 3. There is a center hole at the tail of the core shaft 5, and the tail top of the lathe can be used to provide support for the core shaft 5. The support block 6 slides on the core shaft 5, and the compression spring 10 provides radial force to the support block 6, which can provide support for thin-walled cabin parts.
[0034] First, install the parts of the device except the second locking nut 9 and the cover plate 8 on the lathe spindle, and calibrate the fixture to meet the runout tolerance shown in the figure; before clamping the product, fix the locking nut 2 first, then screw the product into the locking nut 2, and at the same time support the inner circle of the other side of the part with the support block 6, and then tighten the centering block 1 with the wrench rod to align the part with the center of the lathe, and then start the lathe to finish turning the end face stop of the part, and then install the cover plate 8. When installing the cover plate 8, tighten the nut 9 manually with a wrench, and at the same time adjust the position of the positioning nut 3 so that the part is clamped. Pay attention to control the tightening torque not to be too large, and finally tighten the fixture core shaft 5 with the lathe tailpiece.
[0035] The device of this embodiment for solving the deformation of aluminum alloy thin-walled cabin parts during lathe machining has improved the clamping method, and applies axial tensioning force on the main shaft end through the positioning screw sleeve, with radial auxiliary support provided by the support block in the middle, and the tail end of the core shaft supported by the tail top of the lathe, thereby meeting the centering requirements of the tooling while avoiding elastic and torsional deformation during the machining process.
[0036] The above is only an embodiment of the present invention, and common knowledge such as the specific structure and characteristics of the scheme are not described in detail here. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is limited by the appended claims rather than the above description, and it is intended that all changes that fall within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any figure mark in the claims should not be regarded as limiting the claim involved.
Claims
1. A device for solving the deformation of aluminum alloy thin-wall cabin parts during machining, characterized in that: The invention comprises a clamp body (1), a locking nut (2), a positioning nut (3), a centering block (4), a core shaft (5) and a cover plate (8), wherein the locking nut (2) is arranged on the clamp body (1), the clamp body (1) and the centering block (4) are mounted on the core shaft (5) through a flat key (13), an inner positioning thread (21) is arranged on the inner side of the locking nut (2), a first locking nut (11) is arranged on the core shaft (5), and the first locking nut (11) is arranged on one side of the centering block (4), the cover plate (8) is sleeved on the end of the core shaft (5), a second locking nut (9) is arranged on the core shaft (5), and the second locking nut (9) is arranged on one side of the cover plate (8).
2. The device for solving the deformation of aluminum alloy thin-wall cabin parts during turning according to claim 1 is characterized in that: A support block (6) is slidably provided on the core shaft (5), and a compression spring (10) is provided on one side of the support block (6).
3. The device for solving the deformation of aluminum alloy thin-wall cabin parts during turning according to claim 2 is characterized in that: A third locking nut (7) is provided on the core shaft (5), and the third locking nut (7) is provided on one side of the support block (6).
4. The device for solving the deformation of aluminum alloy thin-wall cabin parts during turning according to claim 3 is characterized in that: One end of the support block (6) is a tapered structure.
5. The device for solving the deformation of aluminum alloy thin-wall cabin parts during turning according to claim 4 is characterized in that: The first locking nut (11) comprises two nuts.