Integral automatic drilling and riveting device for cylindrical shell

Abstract

The utility model relates to the technical field of automatic drilling and riveting, in particular to an integral automatic drilling and riveting device for a cylindrical shell, which comprises a base and a mounting frame, a rotary table and a rotary driving mechanism are arranged on the base, a plurality of sliding chutes are uniformly distributed on the upper surface of the rotary table around the axis of the rotary table, and a plurality of clamping mechanisms are arranged on the rotary table. A sliding groove is formed in the mounting frame, an adjusting mechanism for driving the clamping mechanism to slide along the sliding groove is arranged in the sliding groove, a U-shaped frame and a lifting mechanism for driving the U-shaped frame to ascend and descend are arranged on the mounting frame, an L-shaped frame and a horizontal displacement driving mechanism for driving the L-shaped frame to transversely move are arranged on the U-shaped frame, and three extending mechanisms are arranged on the L-shaped frame. The extending mechanism comprises an electric telescopic rod and mounting bases fixedly connected to the driving end of the electric telescopic rod, and a drilling machine, a dimple machine and a riveting machine are fixedly mounted on the three mounting bases correspondingly; according to the utility model, the automatic coherent operation of drilling, dimpling and riveting processes is realized, and the problem that the consistency of the position precision of each rivet hole is difficult to ensure by manual operation is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to automatic drilling and riveting technical field, more exactly relates to a whole automatic drilling and riveting device of cylindrical shell. BACKGROUND

[0002] In the field of aerospace, the cylindrical shell structure is widely used in the fuselage, engine cabin, rocket fuel tank and other key components of the aircraft. These cylindrical shells are usually made of high-strength aluminum alloy, titanium alloy and other materials, and have very high requirements for connection quality and precision, because they are directly related to the structural strength, air tightness and overall performance reliability of the aircraft.

[0003] The traditional drilling and riveting process of the cylindrical shell mostly relies on manual operation. Workers hold drilling and riveting tools and drill and countersink each rivet hole one by one, and then put in the rivet for riveting. This method has many drawbacks: first, manual operation cannot guarantee that the position accuracy of each rivet hole is completely consistent, and deviation may occur. As the size of the cylindrical shell increases, the cumulative error will seriously affect the product quality. Especially for aerospace products, small precision errors may cause safety hazards. Second, aerospace materials often have high strength and difficult to process. Long-time manual operation not only has high labor intensity, but also frequent high-intensity operation is easy to cause worker fatigue, further increasing the risk of operation errors. At the same time, workers frequently contact dust, debris and noise in the processing process, and the working environment is poor, which is not conducive to personnel health and long-term stable operation. SUMMARY

[0004] The utility model aims at providing a whole automatic drilling and riveting device of cylindrical shell, which realizes automatic and consecutive operation of drilling, countersinking and riveting process, avoids the problem that manual operation cannot guarantee that the position accuracy of each rivet hole is consistent, and shortens the processing time.

[0005] In order to achieve the above-mentioned purpose, the technical scheme of the utility model is as follows:

[0006] The application discloses a kind of overall automatic drilling and riveting device of cylindrical shell, including base and mounting frame close to the base, the base is provided with rotating table and the rotating drive mechanism of driving the rotating table rotation, the upper surface of the rotating table is evenly distributed with multiple sliding grooves around the axis of the rotating table, the rotating table is provided with multiple clamping mechanisms, the clamping mechanism is one-to-one corresponding with sliding groove, the sliding groove is provided with adjusting mechanism for driving the clamping mechanism sliding along the sliding groove, the mounting frame is equipped with U-shaped frame and lifting mechanism for driving the U-shaped frame lifting, the U-shaped frame is equipped with L-shaped frame and horizontal displacement drive mechanism for driving the L-shaped frame transverse movement, the L-shaped frame is equipped with three groups of extension mechanism, the extension mechanism includes electric telescopic rod and mounting seat fixedly connected to the drive end of the electric telescopic rod, three groups of mounting seat are respectively fixedly installed with drilling machine, counter sink machine and riveting machine.

[0007] Further, the rotating drive mechanism includes a rotating motor mounted on the base, and a drive gear fixedly connected to an output shaft of the rotating motor.

[0008] Further, the adjusting mechanism includes an adjusting screw rod rotatably arranged in the sliding groove and an adjusting screw rod motor for driving the adjusting screw rod to rotate.

[0009] Further, the clamping mechanism includes mounting plates fixedly connected to both ends of the sliding seat, a bidirectional screw rotatably arranged between the mounting plates, a drive motor mounted on one of the mounting plates for driving the bidirectional screw to rotate, inner and outer arc-shaped clamping plates threadedly connected to both ends of the bidirectional screw respectively, and the inner and outer arc-shaped clamping plates are slidably connected to the upper surface of the base.

[0010] Further, the inner and outer arc-shaped clamping plates are provided with sponge pads on opposite sides.

[0011] Further, the lifting mechanism includes a lifting slide rail vertically fixedly connected to the mounting frame, a lifting screw rod rotatably arranged vertically on the mounting frame, a lifting screw rod motor mounted on the bottom of the mounting frame for driving the lifting screw rod to rotate, a lifting seat threadedly connected to the lifting screw rod, the lifting seat is slidably connected to the lifting slide rail, and the U-shaped frame is fixedly installed on one side of the lifting seat.

[0012] Furthermore, the horizontal displacement driving mechanism includes a transverse slide rail fixedly connected to the U-shaped frame, a transverse lead screw rotatably disposed between the two ends of the U-shaped frame, a transverse lead screw motor for driving the transverse lead screw to rotate mounted on the U-shaped frame, a horizontal moving seat threadedly connected to the transverse lead screw, and an L-shaped frame fixedly mounted on one side of the horizontal moving seat.

[0013] Furthermore, the extension mechanism also includes a guide rail, which is arranged along the extension direction of the piston rod of the electric telescopic rod, and the mounting base is slidably connected to the guide rail.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] This invention utilizes a U-shaped frame, an L-shaped frame, and three sets of extension mechanisms mounted on a mounting bracket to respectively mount a drilling machine, a countersinking machine, and a riveting machine, achieving automated and continuous operation of drilling, countersinking, and riveting processes. Compared to traditional manual processing of rivet holes one by one, it avoids the problem of inconsistent rivet hole position accuracy during manual operation, greatly improving the processing accuracy of the cylindrical shell connection parts. The rotary drive mechanism rotates the rotary table, enabling rapid switching of the cylindrical shell's processing position without the need for repeated manual adjustments. Combined with automated processing equipment, this significantly shortens processing time, meeting the demands of efficient aerospace product production. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the present invention. Figure One ;

[0017] Figure 2 This is a schematic diagram of the structure of the present invention. Figure Two ;

[0018] Figure 3 This is a partial structural schematic diagram of the present invention;

[0019] Figure 4 This is a partial structural cross-sectional view of the present invention.

[0020] 1. Base; 2. Mounting bracket; 3. Rotary table; 301. Slide groove; 4. U-shaped frame; 5. L-shaped frame; 6. Electric telescopic rod; 7. Mounting seat; 8. Drilling machine; 9. Countersinking machine; 10. Riveting machine; 11. Rotary motor; 12. Drive gear; 13. Ring rack; 14. Adjusting screw; 15. Adjusting screw motor; 16. Slide seat; 17. Mounting plate; 18. Double-acting screw; 19. Drive motor; 20. Inner arc-shaped clamping plate; 21. Outer arc-shaped clamping plate; 22. Lifting slide rail; 23. Lifting screw; 24. Lifting screw motor; 25. Lifting seat; 26. Transverse slide rail; 27. Transverse screw; 28. Transverse screw motor; 29. ​​Horizontal moving seat; 30. Guide slide rail. Detailed Implementation

[0021] like Figures 1 to 4 As shown, an integral automatic drilling and riveting device for a cylindrical shell includes a base 1 and a mounting frame 2 disposed near the base 1. The base 1 is provided with a rotating table 3 and a rotation drive mechanism for driving the rotating table 3 to rotate. The upper surface of the rotating table 3 is provided with a plurality of sliding grooves 301 evenly distributed around the axis of the rotating table 3. The rotating table 3 is provided with a plurality of clamping mechanisms, each corresponding to a sliding groove 301. An adjustment mechanism is provided in each sliding groove 301 to drive the clamping mechanism to slide along the sliding groove 301. The mounting frame 2 is provided with a U-shaped frame 4 and a lifting mechanism for driving the U-shaped frame 4 to rise and fall. The U-shaped frame 4 is provided with an L-shaped frame 5 and a horizontal displacement drive mechanism for driving the L-shaped frame 5 to move laterally. The L-shaped frame 5 is provided with three sets of extension mechanisms. Each extension mechanism includes an electric telescopic rod 6 and a mounting seat 7 fixedly connected to the driving end of the electric telescopic rod 6. A drilling machine 8, a countersinking machine 9, and a riveting machine 10 are respectively fixedly mounted on the three sets of mounting seats 7.

[0022] The rotary drive mechanism includes a rotary motor 11 mounted on the base 1, a drive gear 12 fixedly connected to the output shaft of the rotary motor 11, a rotary table 3 rotatably mounted on the base 1, and an annular rack 13 fixedly sleeved on the outer side wall of the rotary table 3, the annular rack 13 meshing with the drive gear 12.

[0023] The adjustment mechanism includes an adjustment screw 14 rotatably disposed in the slide groove 301 and an adjustment screw motor 15 for driving the adjustment screw 14 to rotate. A slide block 16 is threadedly connected to the adjustment screw 14.

[0024] The clamping mechanism includes mounting plates 17 fixedly connected to both ends of the slide block 16. A bidirectional screw 18 is rotatably disposed between the mounting plates 17. A drive motor 19 for driving the bidirectional screw 18 to rotate is mounted on one of the mounting plates 17. An inner arc-shaped clamping plate 20 and an outer arc-shaped clamping plate 21 are respectively threaded to both ends of the bidirectional screw 18. The inner arc-shaped clamping plate 20 and the outer arc-shaped clamping plate 21 are slidably connected to the upper surface of the base 1.

[0025] Both the inner arc-shaped clamping plate 20 and the outer arc-shaped clamping plate 21 have sponge pads on their opposite sides.

[0026] The lifting mechanism includes a lifting slide rail 22 vertically fixedly connected to the mounting frame 2, a lifting screw 23 vertically rotatably mounted on the mounting frame 2, a lifting screw motor 24 for driving the lifting screw 23 to rotate mounted at the bottom of the mounting frame 2, a lifting seat 25 threadedly connected to the lifting screw 23, the lifting seat 25 being slidably connected to the lifting slide rail 22, and the U-shaped frame 4 being fixedly mounted on one side of the lifting seat 25.

[0027] The horizontal displacement driving mechanism includes a transverse slide rail 26 that is horizontally fixedly connected to the U-shaped frame 4. A transverse lead screw 27 is rotatably arranged between the two ends of the U-shaped frame 4. A transverse lead screw motor 28 that drives the transverse lead screw 27 to rotate is installed on the U-shaped frame 4. A horizontal moving seat 29 is threadedly connected to the transverse lead screw 27. The L-shaped frame 5 is fixedly installed on one side of the horizontal moving seat 29.

[0028] The extension mechanism also includes a guide rail 30, which is arranged along the extension direction of the piston rod of the electric telescopic rod 6, and the mounting base 7 is slidably connected to the guide rail 30.

[0029] Working principle:

[0030] The cylindrical shell is placed on the clamping mechanism of the rotary table 3. The adjusting screw motor 15 of the adjusting mechanism drives the adjusting screw 14 to rotate, causing the slide block 16 to slide within the slide groove 301, so that the clamping mechanism moves to the appropriate position and accurately positions the cylindrical shell. Next, the drive motor 19 drives the bidirectional screw 18 to rotate, causing the inner arc-shaped clamping plate 20 and the outer arc-shaped clamping plate 21 to move towards each other, clamping the cylindrical shell. The sponge pads on the opposite sides of the clamping plates play a role in buffering and protecting the shell. Through the adjusting mechanism and the clamping mechanism, cylindrical shells with different inner diameters and wall thicknesses can be clamped and positioned.

[0031] The lifting screw motor 24 drives the lifting screw 23 to rotate, causing the lifting seat 25 to rise and fall along the lifting slide rail 22, thereby adjusting the vertical position of the U-shaped frame 4; the horizontal screw motor 28 on the U-shaped frame 4 drives the horizontal screw 27 to rotate, causing the horizontal moving seat 29 to move laterally along the horizontal slide rail 26, driving the L-shaped frame 5 and the extension mechanism to adjust the horizontal position of the drilling machine 8, the countersinking machine 9, and the riveting machine 10; three sets of electric telescopic rods 6 control the front and rear extension and retraction of the mounting seat 7, which, together with the horizontal displacement drive mechanism, causes the drilling machine 8, the countersinking machine 9, and the riveting machine 10 to process the cylindrical shell in sequence.

[0032] The rotary motor 11 drives the drive gear 12 to rotate, which in turn drives the ring rack 13 on the outer side wall of the rotary table 3 to rotate, causing the rotary table 3 to rotate. The cylindrical shell to be processed is then brought close to the L-shaped frame 5 in sequence. The drilling machine 8, the countersinking machine 9, and the riveting machine 10 work together to drill, countersink, and rivet all the preset parts of the cylindrical shell.

[0033] This utility model utilizes a rotary table 3 and a clamping mechanism to fix the cylindrical shell, and is equipped with an automated architecture for drilling, countersinking, and riveting equipment. Multiple drives work together for precise three-dimensional positioning, avoiding human error and ensuring that the accuracy of each rivet hole and connection part meets the standards.

[0034] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An integral automatic drilling and riveting device for a cylindrical shell, characterized in that: The device includes a base (1) and a mounting bracket (2) located near the base (1). A rotating platform (3) and a rotation drive mechanism for rotating the rotating platform (3) are provided on the base (1). Multiple sliding grooves (301) are evenly distributed around the axis of the rotating platform (3) on its upper surface. Multiple clamping mechanisms are provided on the rotating platform (3), each corresponding to one of the sliding grooves (301). An adjustment mechanism is provided within each sliding groove (301) to drive the clamping mechanism to slide along the groove (301). The mechanism includes a U-shaped frame (4) and a lifting mechanism for driving the U-shaped frame (4) to rise and fall on the mounting frame (2). An L-shaped frame (5) and a horizontal displacement driving mechanism for driving the L-shaped frame (5) to move laterally are provided on the U-shaped frame (4). Three sets of extension mechanisms are provided on the L-shaped frame (5). Each extension mechanism includes an electric telescopic rod (6) and a mounting seat (7) fixedly connected to the driving end of the electric telescopic rod (6). A drilling machine (8), a countersinking machine (9), and a riveting machine (10) are respectively fixedly installed on the three sets of mounting seats (7).

2. The integral automatic drilling and riveting device for a cylindrical shell as described in claim 1, characterized in that: The rotary drive mechanism includes a rotary motor (11) mounted on the base (1), a drive gear (12) is fixedly connected to the output shaft of the rotary motor (11), the rotary table (3) is rotatably mounted on the base (1), and an annular rack (13) is fixedly sleeved on the outer side wall of the rotary table (3), the annular rack (13) meshes with the drive gear (12).

3. The integral automatic drilling and riveting device for a cylindrical shell as described in claim 1, characterized in that: The adjustment mechanism includes an adjustment screw (14) rotatably disposed in the slide groove (301) and an adjustment screw motor (15) for driving the adjustment screw (14) to rotate. A slide block (16) is threadedly connected to the adjustment screw (14).

4. The integral automatic drilling and riveting device for a cylindrical shell as described in claim 3, characterized in that: The clamping mechanism includes mounting plates (17) fixedly connected to both ends of the slide (16). A bidirectional screw (18) is rotatably arranged between the mounting plates (17). A drive motor (19) for driving the bidirectional screw (18) to rotate is mounted on one of the mounting plates (17). An inner arc-shaped clamping plate (20) and an outer arc-shaped clamping plate (21) are threadedly connected to both ends of the bidirectional screw (18). The inner arc-shaped clamping plate (20) and the outer arc-shaped clamping plate (21) are slidably connected to the upper surface of the base (1).

5. The integral automatic drilling and riveting device for a cylindrical shell as described in claim 4, characterized in that: Both the inner arc-shaped clamping plate (20) and the outer arc-shaped clamping plate (21) have sponge pads on their opposite sides.

6. The integral automatic drilling and riveting device for a cylindrical shell as described in claim 1, characterized in that: The lifting mechanism includes a lifting slide rail (22) that is vertically fixedly connected to the mounting frame (2). A lifting screw (23) is vertically rotatably mounted on the mounting frame (2). A lifting screw motor (24) that drives the lifting screw (23) to rotate is mounted at the bottom of the mounting frame (2). A lifting seat (25) is threadedly connected to the lifting screw (23). The lifting seat (25) is slidably connected to the lifting slide rail (22). The U-shaped frame (4) is fixedly mounted on one side of the lifting seat (25).

7. The integral automatic drilling and riveting device for a cylindrical shell as described in claim 1, characterized in that: The horizontal displacement driving mechanism includes a horizontal slide rail (26) fixedly connected to the U-shaped frame (4), a horizontal lead screw (27) rotatably arranged between the two ends of the U-shaped frame (4), a horizontal lead screw motor (28) for driving the horizontal lead screw (27) to rotate is installed on the U-shaped frame (4), a horizontal moving seat (29) is threadedly connected to the horizontal lead screw (27), and the L-shaped frame (5) is fixedly installed on one side of the horizontal moving seat (29).

8. The integral automatic drilling and riveting device for a cylindrical shell as described in claim 1, characterized in that: The extension mechanism also includes a guide rail (30), which is arranged along the extension direction of the piston rod of the electric telescopic rod (6), and the mounting base (7) is slidably connected to the guide rail (30).

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