Device for solving turning deformation of aluminum alloy thin-wall cabin part

Abstract

The invention discloses a device for solving turning deformation of aluminum alloy thin-wall cabin type parts, which comprises a clamp body, a locking screw sleeve, a positioning screw sleeve, a centering block, a mandrel and a cover plate, the locking screw sleeve is arranged on the clamp body, the clamp body and the centering block are mounted on the mandrel through flat keys, an inner positioning thread is arranged on the inner side of the locking screw sleeve, and the cover plate is arranged on the inner side of the positioning screw sleeve. A first locking nut is arranged on the mandrel and arranged on one side of the centering block, the cover plate is arranged at the tail end of the mandrel in a sleeved mode, and a second locking nut is arranged on the mandrel and arranged on one side of the cover plate. A supporting block is slidably arranged on the mandrel, and a compression spring is arranged on one side of the supporting block. A third locking nut is arranged on the mandrel and arranged on one side of the supporting block. One end of the supporting block is of a conical structure. Axial tensioning force is applied to the main shaft end through the positioning threaded sleeve, the middle of the main shaft is supported in a radial auxiliary mode through the supporting block, the tail end of the mandrel is supported through the lathe tail top, the tool centering requirement is met, and elastic and torsional deformation in the machining process is avoided.

Description

Technical Field

[0003] The invention belongs to the field of machining jigs, and in particular relates to a device for solving the deformation of aluminum alloy thin-wall cabin parts during machining. Background Art

[0004] Thin-walled parts are widely used in various industrial fields because of their light weight, material saving and compact structure. However, thin-walled parts are difficult to process and are typical weak rigidity parts. In the finishing process, the parts have poor rigidity, and vibration and deformation occur under the combined effect of clamping force and cutting force, which affects the dimensional accuracy, shape, position accuracy and surface roughness of the workpiece. In the finishing process of external cylindrical turning, the workpiece was measured on the fixture after processing. The dimensional accuracy of each dimension met the design requirements. After the workpiece was removed and measured again, the external cylindrical size and thread deformation of the workpiece were large, and the measuring tool measurement was unqualified. Summary of the invention

[0005] The purpose of the present invention 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.

[0006] In order to solve the above problems, the present invention 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, wherein the locking screw sleeve is arranged on the clamping body, the clamping body and the centering block are installed on the core shaft through a flat key, an inner positioning thread is arranged on the inner side of the locking screw sleeve, a first locking nut is arranged on the core shaft, 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, a second locking nut is arranged on the core shaft, and the second locking nut is arranged on one side of the cover plate.

[0007] As a further improvement of the above technical solution:

[0008] A support block is slidably arranged on the core shaft, and a compression spring is arranged on one side of the support block.

[0009] A third locking nut is arranged on the core shaft, and the third locking nut is arranged on one side of the support block.

[0010] One end of the support block is a tapered structure.

[0011] The first locking nut includes two nuts.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] Improve dimensional accuracy: By applying axial tension on the spindle end through the positioning screw sleeve, the workpiece is ensured to remain stable during processing, avoiding vibration and deformation caused by the combined effect of clamping force and cutting force, thereby improving the dimensional accuracy of the workpiece.

[0014] Improved shape control: The centering block fits tightly with the clamping body and is prevented from loosening by the first locking nut, ensuring that the workpiece will not rotate due to vibration during processing, thereby improving the shape control of the workpiece.

[0015] Enhanced position accuracy: The support block slides on the mandrel and is equipped with a compression spring to provide radial force to provide support for thin-walled cabin parts, ensuring that the workpiece maintains the correct position during processing, thereby enhancing position accuracy.

[0016] Reduce surface roughness: Through the improved clamping method, elastic and torsional deformation during processing is avoided, making the workpiece surface smoother and reducing surface roughness.

[0017] Improve processing efficiency: The device is reasonably designed, easy to operate, and can be quickly installed and adjusted, which improves processing efficiency.

[0018] 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.

[0019] Reduce machining errors: The lathe tailstock provides support for the mandrel, which further reduces errors during machining and improves machining quality.

[0020] Improve safety: The device is reasonably designed and easy to operate, which reduces the risks during operation and improves processing safety.

[0021] 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, has strong adaptability, is easy to operate, is highly safe, and has significant beneficial effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the thin-wall cabin structure of the present invention;

[0023] Figure 2 It is a schematic diagram of the overall structure of the present invention;

[0024] Figure 3 For the present invention Figure 2 Enlarged structural diagram at B in the middle.

[0025] Figure numerals: 1. clamping 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

[0026] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0027] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0028] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be 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 it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] 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 described embodiments 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 creative work are within the scope of protection of the present invention.

[0030] like Figure 1 As shown, the thin-walled cabin body processed in this embodiment has a small wall thickness and a ratio of the circular diameter to the wall thickness D / δ=50-150. Under the combined action of the clamping force and the cutting force, vibration and deformation occur, which affect the dimensional accuracy, shape, position accuracy and surface roughness of the workpiece.

[0031] like Figure 2 and Figure 3As shown, the device for solving the deformation of aluminum alloy thin-wall cabin parts during machining in this embodiment includes a clamp 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.

[0032] The locking screw sleeve 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 screw sleeve 2. The thin-walled cabin body is initially positioned by the cooperation between 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 arranged 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.

[0033] 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 .

[0034] A support block 6 is slidably disposed on the mandrel 5, and a compression spring 10 is disposed on one side of the support block 6. A third locking nut 7 is disposed on the mandrel 5, and the third locking nut 7 is disposed on one side of the support block 6. One end of the support block 6 is a conical structure.

[0035] When in use, the clamp body 1 transmits power to the centering block 4 and the mandrel 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 spanner 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 locking screws 12. There are four windows on the locking screw sleeve 2, and the tightening rod can be inserted through its windows into the spanner hole to screw the positioning screw sleeve 3. There is a center hole at the tail of the mandrel 5, and the tail top of the lathe can be used to provide support for the mandrel 5. The support block 6 slides on the mandrel 5, and the compression spring 10 provides radial force for the support block 6, which can provide support for thin-walled cabin parts.

[0036] 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 sleeve 2, then screw the product into the locking nut sleeve 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 a wrench rod to align the part with the center of the lathe, and then start the lathe to finish-turn 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 sleeve 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.

[0037] 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 a positioning screw sleeve, with radial auxiliary support provided by a support block in the middle and support of the tail end of the core shaft by a lathe tail top, thereby meeting the centering requirements of the tooling and avoiding elastic and torsional deformation during machining.

[0038] The above is only an embodiment of the present invention, and the common sense such as the known specific structure and characteristics in the scheme is 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, and the scope of the present invention is defined by the attached claims rather than the above description, so it is intended to include all changes within the meaning and scope of the equivalent elements of the claims. Any figure mark in the claims should not be regarded as limiting the claims 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 installed 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), and 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 machining according to claim 1 is characterized in that: A support block (6) is slidably arranged on the core shaft (5), and a compression spring (10) is arranged on one side of the support block (6).

3. The device for solving the deformation of aluminum alloy thin-wall cabin parts during machining 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 arranged on one side of the support block (6).

4. The device for solving the deformation of aluminum alloy thin-wall cabin parts during machining according to claim 3 is characterized in that: One end of the support block (6) is a conical structure.

5. The device for solving the deformation of aluminum alloy thin-wall cabin parts during machining according to claim 4 is characterized in that: The first locking nut (11) comprises two nuts.

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