A machining tool for the interior cavity of an ultra-large cabin

Abstract

This utility model discloses a machining fixture for an ultra-large cabin cavity, including an L-shaped worktable. A turntable and a plug are sequentially fixed on the vertical arm end face of the worktable. A cover plate is vertically arranged on the horizontal plane of the worktable, opposite to the plug. A screw connects the plug and the cover plate. The plug is disc-shaped, with a groove formed in the center area of ​​its end face facing the cover plate. The cover plate has a countersunk hole structure, and the diameter of the groove is the same as the diameter of the countersunk hole. This design solves the problem of part deformation during clamping. The double-end positioning design of the plug's groove and the cover plate's countersunk hole enables rapid coaxial positioning of the cabin. The combined locking structure of the screw and the countersunk hole simplifies the clamping process and significantly improves efficiency.

Description

Technical Field

[0001] This utility model relates to the field of machining tooling technology, specifically to a machining tooling for an ultra-large cabin cavity. Background Technology

[0002] A certain ultra-large thin-walled compartment is large in volume and length, with numerous internal bosses and a complex structure. The internal cavity is fully machined, with a wall thickness of 3.2mm, presenting challenges such as difficult clamping, high machining difficulty, high precision requirements, and susceptibility to deformation. After machining, the previous clamping method has the following problems: 1) The compartment is long, making clamping difficult. It requires inserting the clamping frame into the internal cavity, which easily deforms the compartment and takes a long time, resulting in low efficiency. 2) When machining the other end of the clamping frame, due to the compartment's length and poor rigidity, it is difficult to guarantee the required precision, resulting in a low pass rate. Furthermore, only low cutting speeds and feed rates can be used during machining, leading to low efficiency. 3) Because of the compartment's length, the turntable bears a very large torque, which easily damages the turntable. Summary of the Invention

[0003] The purpose of this utility model is to provide a machining fixture for the internal cavity of an ultra-large cabin, thereby improving the machining accuracy of the internal cavity of the ultra-large cabin and increasing the processing efficiency and pass rate of the product.

[0004] The technical solution of this utility model is: a machining fixture for the internal cavity of an ultra-large cabin, including an L-shaped worktable, a turntable and a plug are fixed sequentially on the vertical arm end face of the worktable, a cover plate is vertically arranged on the horizontal plane of the worktable and is arranged opposite to the plug, and a screw is connected between the plug and the cover plate;

[0005] The plug is disc-shaped, with a groove in the center of its end face facing the cover plate. The cover plate has a countersunk through-hole structure, and the diameter of the groove is the same as the diameter of the countersunk hole.

[0006] Preferably, the cover plate has mounting holes around its circumference, and one end of the screw passes through the mounting holes and is fixed by a washer and a nut.

[0007] Preferably, the lower end of the cover plate is supported by a support frame roller, the support frame roller is connected to the upper end of the support frame telescopic rod, and the lower end of the support frame telescopic rod is fixed to the support frame base.

[0008] Preferably, the support frame telescopic rod and the support frame base can be replaced as needed, and the support frame telescopic rod and support frame base with different heights can be used to adjust the height of the rollers.

[0009] Preferably, the plug is fixedly installed on the turntable by bolts, and the center of the groove of the plug coincides with the rotation axis of the turntable.

[0010] Preferably, there are four screws, which are evenly distributed along the circumference and connected between the outer end area of ​​the groove of the plug and the disc area of ​​the cover plate.

[0011] Preferably, the center line of the countersunk hole of the cover plate coincides with the rotation axis of the turntable.

[0012] The beneficial effects of this utility model are:

[0013] 1. To solve the problem of deformation of clamped parts, the double-end positioning design of the plug groove and the countersunk hole of the cover plate enables rapid coaxial positioning of the cabin. The combination of screw and countersunk hole locking structure simplifies the clamping process and significantly improves efficiency.

[0014] 2. Enhanced processing rigidity and precision: The height of the support frame rollers can be adjusted by replacing the support frame base and the support frame telescopic rod, providing dynamic support for the far end of the cabin and solving the problem of poor support caused by the long cabin. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the specific embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a front view of the machining tooling for the interior cavity of the ultra-large cabin;

[0017] Figure 2 Side view of the machining tooling for the internal cavity of the super-large cabin in the utility model;

[0018] Figure 3 This is a cross-sectional view of the tooling used for machining the internal cavity of the super-large cabin in this utility model.

[0019] Figure 4 This is a 3D drawing of the tooling and clamping parts for machining the inner cavity of the super-large cabin in this utility model;

[0020] Reference numerals: 1-Workbench; 2-Turntable; 3-End plug; 4-Screw; 5-Support frame base; 6-Support frame telescopic rod;

[0021] 7-Support frame roller; 8-Cover plate; 9-Washer; 10-Nut; A-Part. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. However, it should not be construed that the scope of the subject matter of the present invention is limited to the following embodiments. Any modifications, substitutions and alterations made based on ordinary technical knowledge and conventional means in the art without departing from the above-described technical concept of the present invention are included within the scope of the present invention.

[0023] This utility model provides a tooling design for machining the internal cavity of an ultra-large thin-walled cabin, such as... Figure 1-2 As shown, the machine includes a worktable 1, a turntable 2, a plug 3, a screw 4, a support frame base 5, a support frame telescopic rod 6, a support frame roller 7, a cover plate 8, a washer 9, and a nut 10. The turntable 2 is fixedly connected to the machine tool worktable 1. The plug 3 is used to install on the turntable 2. Part A is embedded in the plug 3. The screw 4 is used to connect the plug 3 and the cover plate 8. The cover plate 8 is used to fix the other end of part A through the screw 4. The nut 10 and the washer 9 are used together to tighten the cover plate 8. The support frame base 5, the support frame telescopic rod 6, and the support frame roller 7 are used to support the cover plate 8. The cover plate supports the other end of part A.

[0024] Principle Explanation: After machining the outer diameter of part A, mill the inner cavity elements and skin. Install the plug 3 on the turntable 2 with bolts. The center of the groove on the plug 3 is aligned with the rotation center of the turntable 2, and the diameter of the groove on the plug 3 is aligned with the outer diameter of part A. Embedding the part into the groove allows for quick positioning of the part's rotation center.

[0025] Cover plate 8 has a countersunk through-hole structure, with the countersunk diameter matching the outer diameter of part A. The other end of part S is inserted into the countersunk through-hole for quick positioning of the part's rotation center. The through-hole diameter matches the inner diameter of the part's end frame. Four screws 4 are screwed into the threaded holes of plug 3 at one end and pass through cover plate 8 at the other, securing the part with nuts 10. Two nuts are used to prevent loosening. Because the part is too long, the turntable experiences a large torque when machining this end of cover plate 8. Therefore, a support frame is designed at this end of cover plate 8 to assist in supporting the part, reducing the torque on the turntable, and minimizing part vibration. The roller height is freely adjustable. By replacing the support frame base 5 and the support frame telescopic rod with different heights, the friction of the support frame rollers is reduced when the part rotates. A schematic diagram of part clamping is shown below. Figure 3 and 4 As shown.

[0026] This invention is not only simple to operate and quick to position, but also ensures the precision of machining the internal cavity of the ultra-large cabin, thereby improving the processing efficiency and pass rate of the product.

[0027] The tooling for machining the internal cavity of an ultra-large thin-walled cabin provided by this utility model has been described in detail above. Specific examples have been used to illustrate the structure and working principle of this utility model. The descriptions of the embodiments above are only for the purpose of helping to understand the method and core idea of ​​this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principle of this utility model, and these improvements and modifications also fall within the scope of protection of the claims of this utility model.

Claims

1. A super-large cabin inner cavity processing tooling, characterized in that: The worktable includes an L-shaped workbench (1), on which a turntable (2) and a plug (3) are fixed in sequence on the vertical arm end face. A cover plate (8) is vertically arranged on the horizontal plane of the workbench (1) and is arranged opposite to the plug (3). A screw (4) is connected between the plug (3) and the cover plate (8). The plug (3) is disc-shaped, and a groove is provided in the center area of ​​its end face facing the cover plate (8). The cover plate (8) is a countersunk through hole structure, and the diameter of the groove is the same as the diameter of the countersunk hole.

2. The large cabin inner cavity processing tooling of claim 1, wherein: The cover plate (8) has mounting holes around its circumference. One end of the screw (4) passes through the mounting holes and is fixed by a washer (9) and a nut (10).

3. The large cabin inner cavity processing tooling of claim 1, wherein: The lower end of the cover plate (8) is supported by a support frame roller (7), which is connected to the upper end of the support frame telescopic rod (6). The lower end of the support frame telescopic rod (6) is fixed to the support frame base (5).

4. The large cabin inner cavity processing tooling of claim 3, wherein: The support frame telescopic rod (6) and support frame base (5) can be replaced as needed. The support frame telescopic rod (6) and support frame base (5) with different heights can be used to adjust the height of the roller (7).

5. The large cabin inner cavity processing tooling of claim 1, wherein: The plug (3) is fixedly installed on the turntable (2) by bolts, and the center of the groove of the plug (3) coincides with the rotation axis of the turntable (2).

6. The large cabin inner cavity processing tooling of claim 1, wherein: The screws (4) are four in number, evenly distributed along the circumference and connected between the outer end area of ​​the groove of the plug (3) and the disc area of ​​the cover plate (8).

7. The machining fixture for the ultra-large cabin cavity according to claim 1, characterized in that: The center line of the countersunk hole of the cover plate (8) coincides with the rotation axis of the turntable (2).

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