Automatic drilling equipment for processing aluminum pipe and working method thereof

Abstract

The application relates to the technical field of automatic drilling equipment, in particular to automatic drilling equipment for aluminum pipe machining and a working method thereof, which can realize multi-directional automatic hole machining and can provide internal support positioning, is richer in functions, better in linkage and coordination of components, stronger in practicability, and comprises a machine body, an internal support structure and a counter-moving machining structure. The machine body comprises a platform frame and a mounting frame, the mounting frame is fixedly connected to the top end of the platform frame, a rotary feeding assembly is rotatably arranged in the platform frame, the internal support structure comprises a lifting frame, a combined internal support frame and a first electric telescopic rod, the lifting frame is slidingly arranged in the mounting frame, the combined internal support frame is in sliding fit with the lifting frame, a fine adjustment spring is arranged between the lifting frame and the combined internal support frame, the first electric telescopic rod is arranged in the mounting frame, and the actuating rod of the first electric telescopic rod is connected with the lifting frame. The counter-moving machining structure comprises two main shaft motors, and the two main shaft motors are arranged in the mounting frame through counter-moving assemblies.

Description

Technical Field

[0001] This invention relates to the field of automatic drilling equipment technology, specifically to an automatic drilling device for aluminum tube processing and its working method. Background Technology

[0002] As is well known, in small household appliances such as vacuum cleaners, aluminum tubes can be used as extension rods for hand gripping and air duct components, as well as internal heat dissipation sleeves for motors. To facilitate the application and assembly of aluminum tubes, holes are usually designed on them. To realize the drilling of these holes, this solution proposes an automatic drilling device for aluminum tube processing and its working method.

[0003] A search revealed that Chinese Patent Publication No. CN213916195U discloses an automatic drilling mechanism for aluminum alloy-lined PE-RT composite pipes. The mechanism roughly comprises a machine body, with a suspended housing fixedly connected to the upper end. A drive motor is housed within the suspended housing, and a disc is fixedly connected to the end of the drive motor's output shaft. A first slider is located at one end of the disc, and a first rotating shaft is fixedly connected to the disc. A lifting device is rotatably connected to the first rotating shaft, and a slide rail is fixedly connected to the lower end of the lifting device. Five vertical rods are slidably fitted onto the slide rail at equal intervals. In use, the effective cooperation between the lifting device and the drilling device allows drilling to be completed without manual operation. A Chinese patent publication number CN210080782U discloses an automatic drilling device for ladder pipes. It is generally described as including a frame, a hopper, a drilling mechanism, a lifting device, and a lateral moving device. The lateral moving device includes a rack, a transmission gear, a lateral reduction motor, and a lateral slide fixedly connected to the bottom of the lateral reduction motor. The left side of the lateral slide has a guide rail, and the right side of the support has a slider that cooperates with the guide rail. The lateral slide moves back and forth along the right side of the support. The right end of the lateral reduction motor is connected to the lifting device, and the lateral reduction motor is connected to a controller. In use, it can complete the drilling of multiple holes in one operation.

[0004] While the aforementioned existing technical solutions can achieve drilling operations on pipes, it is clear from the text and accompanying drawings that both solutions involve unidirectional drilling. This makes it difficult to complete processes that require drilling from both sides or have circumferential requirements for the drilling position. Furthermore, considering that the pipe has a hollow structure, minimizing the deformation of the pipe itself during drilling is also an important indicator of processing quality. Therefore, existing technical solutions like the one described above need further enhancement in functionality and practicality. Summary of the Invention

[0005] To address the problems in the prior art, this invention provides an automatic drilling device and its working method for aluminum tube processing. It can be adapted to the aluminum tube to be processed to achieve multi-directional automatic drilling processing, and at the same time, it can provide internal support and positioning for the tube to be processed. The device has richer functions, better linkage and coordination of various components, and stronger practicality.

[0006] The technical solution adopted by this invention to solve its technical problem is: an automatic drilling device for aluminum tube processing, comprising a machine body, an internal support structure, and a counter-shifting processing structure. The machine body includes a platform frame and a mounting frame. The mounting frame is fixedly connected to the top of the platform frame. A rotary feeding assembly is rotatably installed inside the platform frame. The internal support structure includes a lifting frame, a combined internal support frame, and a first electric telescopic rod. The lifting frame is slidably installed inside the mounting frame. The combined internal support frame and the lifting frame are in a sliding fit, and a fine-adjusting spring connects the lifting frame and the combined internal support frame. The first electric telescopic rod is installed inside the mounting frame, and the actuator of the first electric telescopic rod is connected to the lifting frame. The counter-shifting processing structure includes two spindle motors. Both spindle motors are installed inside the mounting frame through the counter-shifting assembly. A processing drill bit is installed on the actuator shaft of each of the two spindle motors, and a transmission mechanism is installed between the counter-shifting assembly and the lifting frame.

[0007] Specifically, the shifting assembly includes a lifting frame and a second electric telescopic rod. The lifting frame is slidably connected to the mounting frame, the second electric telescopic rod is installed inside the mounting frame, and the actuator of the second electric telescopic rod is fixedly connected to the lifting frame. The lifting frame is slidably mounted with two shifting frames, and the two main shaft motors are respectively installed inside the two shifting frames.

[0008] Specifically, each of the two shifting frames is fixedly connected to a first round rod and a second round rod. The lifting frame has two first round holes and two second round holes. The two first round rods are slidably fitted into the two first round holes, and the two second round rods are slidably fitted into the two second round holes. Each of the two first round rods is fixedly connected to a synchronization frame. The two synchronization frames are fixedly connected to the two second round rods. Each of the two synchronization frames abuts against two elastic springs. All four elastic springs abut against the lifting frame and are respectively fitted onto the outside of the two first round rods and the two second round rods.

[0009] Specifically, the transmission mechanism includes a synchronizing plate, which is fixedly connected to the outside of the lifting frame. The synchronizing plate is fixedly connected to two slope pushing frames, each of which is equipped with a slope driven frame. The two slope driven frames are slidably connected to two opposing frames, and both slope driven frames are slidably installed inside the mounting frame.

[0010] Specifically, the mounting frame is fixedly connected with a first guide shaft and a second guide shaft. The two slope driven frames are fixedly connected with a first guide ring and a second guide ring. The two first guide rings are slidably connected to the first guide shaft, and the two second guide rings are slidably connected to the second guide shaft. The two shifting frames are slidably connected with lifting rods, and the two lifting rods are fixedly connected to the two slope driven frames respectively.

[0011] Specifically, the rotary feeding assembly includes a rotating ring and a servo motor. The rotating ring is rotatably connected inside the platform frame, and the servo motor is installed inside the platform frame and is drively connected to the rotating ring. A desktop plate is provided on the platform frame, and an annular opening matching the rotating ring is opened on the desktop plate. Multiple load racks are fixedly connected to the rotating ring, and each of the multiple load racks is fixedly connected to a supporting vertical rod. Multiple elastic umbrella-shaped supports are fixedly connected to the outside of each of the multiple supporting vertical rods.

[0012] Specifically, the combined inner support frame has a horizontal hole, and the bottom end of the combined inner support frame has a central bottom groove and four side grooves. A drive sleeve is slidably connected in the central bottom groove, and four linkage frames are hinged to the drive sleeve. Each of the four linkage frames is hinged to an inner support arc frame. The four inner support arc frames are slidably fitted in the four side grooves. Each of the two inner support arc frames corresponding to the horizontal hole has a machining through hole. The two machining through holes provide insertion space for two machining drill bits. The drive sleeve matches the support vertical rod.

[0013] Specifically, the combined inner support frame is composed of multiple separate parts spliced ​​and fixed together. A guide frame is fixedly connected to the combined inner support frame. A limit ring is fixedly connected to the outside of the guide frame. The top of the guide frame is fixedly connected to the fine-tuning spring. The top of the fine-tuning spring is fixedly connected to a connecting frame. The connecting frame is fixedly connected to the lifting frame. The connecting frame is fixedly connected to the actuator of the first electric telescopic rod.

[0014] Specifically, a sheet metal skin is installed on the outside of the mounting frame. The sheet metal skin is provided with a turning inlet and a turning outlet. A sheet metal cover is fixedly connected to both the turning inlet and the turning outlet. A first isolation member and a second isolation member are fixedly connected to both of the sheet metal covers. The two first isolation members are respectively matched with the two second isolation members.

[0015] A method for operating an automatic drilling device for aluminum tube processing includes the following steps: S1. First, complete the equipment installation, then load the aluminum tube into the rotary feeding assembly to clamp and position the aluminum tube to be processed. With the operation of the rotary feeding assembly, the aluminum tube installed on it can be automatically transported into the processing station to facilitate subsequent internal support fixing and drilling operations. S2. The lifting frame slides down inside the mounting frame by operating the first electric telescopic rod, which drives the combined inner support frame to fall synchronously, so that the combined inner support frame extends into the interior of the aluminum tube to be processed, and the combined inner support frame provides internal support for the aluminum tube. S3. After the combined inner support frame provides internal support for the aluminum tube, the first electric telescopic rod continues to control the lifting frame to fall. The support vertical rod in the rotary feeding assembly will limit the movement of the combined inner support frame. After that, as the lifting frame continues to fall, the combined inner support frame will not fall further. The fine adjustment spring between the two generates elastic compression. Then, as the lifting frame continues to fall, the power transmission between the transmission mechanism and the opposing assembly drives the opposing assembly to operate synchronously, driving the two main spindle motors to move relative to each other, realizing the symmetrical opposite feed of the two processing drill bits from both sides of the aluminum tube, and performing synchronous drilling processing on the fixed aluminum tube. S4. After drilling a single aluminum tube is completed, the lifting frame is raised, the two spindle motors move away from each other, and the two drilling bits also exit relative to the completed drilling holes. Then the combined inner support frame moves upward to reset, releasing the internal support and fixing of the aluminum tube. S5. After the combined inner support frame has completely retracted relative to the aluminum tube being processed, the processed aluminum tube is sent out of the processing station by the rotary feeding assembly, and the next aluminum tube to be processed is fed at the same time, realizing continuous cycle processing operation.

[0016] The beneficial effects of this invention are: (1) The automatic drilling equipment and its working method for aluminum tube processing described in this invention can achieve internal support for the aluminum tube to be processed through the design of the internal support structure, which can effectively reduce the deformation of the inner wall of the aluminum tube during the drilling operation.

[0017] (2) The automatic drilling equipment and its working method for aluminum tube processing described in this invention can realize bidirectional synchronous drilling operation on the clamped and fixed aluminum tube through the shifting processing structure, which has high processing efficiency and good workpiece force balance.

[0018] (3) The automatic drilling equipment and its working method for aluminum tube processing described in this invention can realize the production line conveying of aluminum tubes to be processed through the design of the rotary feeding component, and can be adapted to the internal support structure to ensure the reliability of the drilling position positioning of aluminum tubes.

[0019] (4) The automatic drilling equipment and its working method for aluminum tube processing described in this invention can realize the timing linkage between the internal support structure and the two main spindle motors through the design of the transmission mechanism, so as to ensure that the internal support action of the aluminum tube and the external drilling process are executed in sequence. Attached Figure Description

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0021] Figure 1 This is a three-dimensional structural diagram of the entire invention; Figure 2 This is a three-dimensional structural diagram of the mounting frame, the first electric telescopic rod, and the second electric telescopic rod of the present invention. Figure 3 This is a three-dimensional structural diagram of the second round rod, the synchronizing frame, and the elastic spring of the present invention. Figure 4 This is a three-dimensional structural diagram showing the disassembled components of the lifting frame, combined inner support frame, and fine-tuning spring of the present invention. Figure 5 This is a three-dimensional structural diagram of the drive sleeve of the present invention; Figure 6 This is a three-dimensional structural diagram of the drive sleeve, linkage frame, and inner support arc frame of the present invention. Figure 7 This is a three-dimensional structural schematic diagram of the drive sleeve, linkage frame, and inner support arc frame of the present invention, partially cut apart. Figure 8 This is a three-dimensional structural diagram of the disassembled internal support frame of the present invention; Figure 9 This is a three-dimensional structural diagram of the entire invention from a rear side view; Figure 10 This is a three-dimensional structural diagram of the mounting bracket, the first guide shaft, and the second guide shaft of the present invention. Figure 11 This is a three-dimensional structural diagram of the first electric telescopic rod, main shaft motor, and lifting frame of the present invention. Figure 12 This is a three-dimensional structural diagram of the platform frame, rotating ring, and servo motor of the present invention, viewed from below. Figure 13 This is a three-dimensional structural diagram of the lifting frame, the second electric telescopic rod, and the shifting frame of the present invention, viewed from below. Figure 14 This is a three-dimensional structural diagram showing the combined internal support frame, fine-tuning spring, and guide frame of the present invention. Figure 15 This is a three-dimensional structural schematic diagram of another form of opening the horizontal hole and the through hole of the present invention; Figure 16 This is a three-dimensional structural diagram illustrating the opening form of multiple horizontal holes and multiple machined through holes in this invention.

[0022] In the diagram: 1. Platform frame; 2. Mounting frame; 3. Lifting frame; 4. Combined internal support frame; 5. First electric telescopic rod; 6. Fine-tuning spring; 7. Spindle motor; 8. Machining drill bit; 9. Lifting frame; 10. Second electric telescopic rod; 11. Transfer frame; 12. First round rod; 13. Second round rod; 14. Synchronizing frame; 15. Elastic spring; 16. Synchronizing plate; 17. Slope pushing frame; 18. Slope driven frame; 19. First guide shaft; 20. Second guide shaft 21. Rod; 22. First guide ring; 23. Second guide ring; 24. Lifting rod; 25. Rotating ring; 26. Servo motor; 27. Desktop; 28. Shelf; 29. ​​Supporting vertical rod; 30. Elastic umbrella-shaped fin; 31. Machined through hole; 32. Drive sleeve; 33. Linkage frame; 34. Inner support arc frame; 35. Guide frame; 36. Limiting ring; 37. Sheet metal skin; 38. Sheet metal cover; 39. First isolation component; 40. Second isolation component; 41. Connecting frame. Detailed Implementation

[0023] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0024] Example

[0025] Please see Figures 1-16An automatic drilling device for aluminum tube processing includes a machine body, an internal support structure, and a shifting processing structure. The machine body includes a platform frame 1 and a mounting frame 2. The mounting frame 2 is fixedly connected to the top of the platform frame 1. The internal support structure includes a lifting frame 3, a combined internal support frame 4, and a first electric telescopic rod 5. The lifting frame 3 is slidably installed inside the mounting frame 2. The combined internal support frame 4 and the lifting frame 3 are in a sliding fit, and a fine-adjusting spring 6 connects the lifting frame 3 and the combined internal support frame 4. The first electric telescopic rod 5 is installed inside the mounting frame 2, and the actuator of the first electric telescopic rod 5 is connected to the lifting frame 3. The combined internal support frame 4 has a horizontal hole, and the bottom end of the combined internal support frame 4 has a central bottom groove and four side grooves. A drive sleeve 31 is slidably connected inside the central bottom groove. 1. Four linkage frames 32 are hinged together, and each of the four linkage frames 32 is hinged to an inner support arc frame 33. The four inner support arc frames 33 are slidably fitted in the four side grooves. The two inner support arc frames 33 corresponding to the horizontal hole are each provided with a machining through hole 30. The two machining through holes 30 provide insertion space for two machining drill bits 8. The drive sleeve 31 matches the support vertical rod 28. The combined inner support frame 4 is composed of multiple separate parts spliced ​​and fixed. A guide frame 34 is fixedly connected to the combined inner support frame 4. A limit ring 35 is fixedly connected to the outside of the guide frame 34. The top of the guide frame 34 is fixedly connected to the fine adjustment spring 6. The top of the fine adjustment spring 6 is fixedly connected to the connecting frame 40. The connecting frame 40 is fixedly connected to the lifting frame 3. The connecting frame 40 is fixedly connected to the actuator of the first electric telescopic rod 5. The fixed connection, through the design of the internal support structure, can be matched with the aluminum tube to be processed to achieve internal support, which can effectively reduce the deformation of the inner wall of the aluminum tube during drilling operations. The offset processing structure includes two spindle motors 7, both of which are mounted in the mounting frame 2 through offset components. Each of the two spindle motors 7 has a processing drill bit 8 mounted on its actuating shaft. The offset component includes a lifting frame 9 and a second electric telescopic rod 10. The lifting frame 9 is slidably connected to the mounting frame 2, and the second electric telescopic rod 10 is installed in the mounting frame 2, with its actuating rod fixedly connected to the lifting frame 9. Two offset frames 11 are slidably mounted on the lifting frame 9, and the two spindle motors 7 are respectively installed in the two offset frames 11. Both offset frames 11 are fixedly connected. The lifting frame 9 has two first round rods 12 and two second round rods 13 connected to it. The lifting frame 9 has two first round holes and two second round holes. The two first round rods 12 are slidably fitted into the two first round holes, and the two second round rods 13 are slidably fitted into the two second round holes. The two first round rods 12 are fixedly connected to the synchronous frame 14. The two synchronous frame 14 are fixedly connected to the two second round rods 13. The two synchronous frame 14 abut against two elastic springs 15. The four elastic springs 15 abut against the lifting frame 9. The four elastic springs 15 are respectively fitted outside the two first round rods 12 and the two second round rods 13. Through the shifting processing structure, bidirectional synchronous drilling can be performed on the clamped and fixed aluminum tube, which has high processing efficiency and good workpiece force balance.

[0026] It should be further explained that a transmission mechanism is installed between the shifting component and the lifting frame 3. The transmission mechanism includes a synchronization plate 16, which is fixedly connected to the outside of the lifting frame 3. Two slope pushing frames 17 are fixedly connected to the synchronization plate 16, and each of the two slope pushing frames 17 is equipped with a slope driven frame 18. The two slope driven frames 18 are slidably connected to the two shifting frames 11 respectively. Both slope driven frames 18 are slidably installed in the mounting frame 2. Through the design of the transmission mechanism, the timing linkage between the internal support structure and the two main spindle motors 7 can be realized, ensuring that the internal tightening action of the aluminum tube and the external drilling process are executed in sequence and in coordination. The mounting frame 2 is fixedly connected to a first guide shaft 19 and a second guide shaft 20. Each of the two slope-driven frames 18 is fixedly connected to a first guide ring 21 and a second guide ring 22. Both first guide rings 21 are slidably connected to the first guide shaft 19, and both second guide rings 22 are slidably connected to the second guide shaft 20. Each of the two shifting frames 11 is slidably connected to a lifting rod 23. The two lifting rods 23 are respectively fixedly connected to the two slope-driven frames 18, providing horizontally opposite guidance to the two slope-driven frames 18 while ensuring the appropriate height of the slope-driven frames 18, so that the height adjustment of the shifting frame 11 does not affect the slope-driven... The height of the frame 18 changes to ensure the transmission effect between the slope pushing frame 17 and the slope driven frame 18. A rotary feeding assembly is rotatably installed inside the platform frame 1. The rotary feeding assembly includes a rotating ring 24 and a servo motor 25. The rotating ring 24 is rotatably connected inside the platform frame 1, and the servo motor 25 is installed inside the platform frame 1 and is drivenly connected to the rotating ring 24. A desktop plate 26 is provided on the platform frame 1. The desktop plate 26 has an annular opening that matches the rotating ring 24. Multiple load racks 27 are fixedly connected to the rotating ring 24. Each load rack 27 is fixedly connected to a support vertical rod 28. Multiple elastic umbrella-shaped blades 29 are fixedly connected to the outside of the rod 28. Through the design of the rotary feeding assembly, the aluminum tube to be processed can be conveyed in a production line and can be adapted to the internal support structure to ensure the reliability of the drilling position of the aluminum tube. Sheet metal skin 36 is installed on the outside of the mounting frame 2. The sheet metal skin 36 is provided with a turning inlet and a turning outlet. Sheet metal covers 37 are fixedly connected to both the turning inlet and the turning outlet. First isolation members 38 and second isolation members 39 are fixedly connected to both sheet metal covers 37. The two first isolation members 38 are matched with the two second isolation members 39 respectively to achieve isolation between the processing environment and the outside, and improve the processing protection.

[0027] The first electric telescopic rod 5, the main spindle motor 7, the second electric telescopic rod 10, and the servo motor 25 in the embodiment are all conventional devices known to those skilled in the art and can be customized according to actual needs. In this patent, we only use them and do not improve their structure and function. Their setting method, installation method, and electrical connection method can be debugged and operated by those skilled in the art according to the requirements of their instruction manual, and will not be described in detail here.

[0028] In summary, the working principle of this automatic drilling equipment for aluminum tube processing is as follows: Before use, the entire equipment is first installed at the desired location. Based on power requirements and travel distance, the appropriate models of the first electric telescopic rod 5, main spindle motor 7, second electric telescopic rod 10, and servo motor 25 are selected. The electrical components and controllers are then installed according to their specific wiring and control methods. After installation, a trial run should be conducted to ensure effective operation and coordination between all parts. During formal operation, the aluminum tube to be processed is first placed on the outside of the supporting vertical rod 28, and the elastic umbrella-shaped support 2 on the outside of the supporting vertical rod 28... 9. The servo motor 25 can adaptively fit the inner wall of the aluminum tube, achieving pre-limiting internal support of the aluminum tube. Subsequently, the servo motor 25 drives the rotating ring 24 to rotate in a stepwise manner, driving the carrier 27 and the initially positioned aluminum tube to be transported synchronously, conveying the aluminum tube to be processed to the processing station directly below the combined inner support frame 4, and stopping at this station. Then, the first electric telescopic rod 5 operates to control the connecting frame 40 to move downward, thereby driving the lifting frame 3 to slide vertically down along the inner side of the mounting frame 2. Through the transmission of the fine-tuning spring 6, the combined inner support frame 4 moves downward synchronously, so that the combined inner support frame 4 extends into the interior of the aluminum tube to be processed. During this process, the limiting ring 35 accompanies the guide The guide frame 34 moves downwards synchronously until the limiting ring 35 contacts the top of the aluminum tube. The limiting ring 35 then continues to fall, pushing the aluminum tube to be processed downwards synchronously. During this process, the elastic umbrella-shaped sheet 29 undergoes elastic compression, accompanied by the sliding descent of the combined inner support frame 4. When the drive sleeve 31 contacts the top of the support vertical rod 28, the support vertical rod 28 provides rigid support and limitation for the drive sleeve 31. Subsequently, under the pushing action of the support vertical rod 28, the drive sleeve 31 slides upwards along the central bottom groove, synchronously driving the four corresponding hinged linkage frames 32 to open outwards, thereby pushing the four inner support arc frames 33 to slide outwards along their respective side grooves. The process continues until the four inner support arc frames 33 are tightly fitted against the inner wall of the aluminum tube, achieving all-round support inside the aluminum tube and reducing the problem of dents or deformation when drilling the aluminum tube. The machining through holes 30 on the inner support arc frames 33 on both sides correspond to the drilling position, providing a through channel for the subsequent machining of the drill bit 8. Since the inner support arc frames 33, after forming inner support contact with the aluminum tube, will restrict the movement of the drive sleeve 31 relative to the combined inner support frame 4, the combined inner support frame 4 will stop moving down when the lifting frame 3 continues to slide down. The lifting frame 3 continues to descend under the continuous drive of the first electric telescopic rod 5. During this process, the fine adjustment spring 6 will be compressed to generate elastic preload.

[0029] After the internal support is stabilized, as the lifting frame 3 continues to move downwards, it will drive the two slope pushing frames 17 to move downwards synchronously via the synchronous plate 16. The inclined slope of the slope pushing frame 17 will gradually approach and press against the slope driven frame 18. Under the limiting and guiding action of the first guide shaft 19 and the second guide shaft 20 and the corresponding first guide ring 21 and second guide ring 22, the two slope driven frames 18 will slide synchronously closer to each other in the horizontal direction. The two relatively close slope driven frames 18 will drive the two opposing frames 11 to move synchronously in opposite directions via the two lifting rods 23. During the process, the first round rod 12 and the second round rod 13 slide along their respective first and second round holes. The second electric telescopic rod 10 can adjust the height of the lifting frame 9, and can drive the lifting frame 9 to rise and fall as a whole according to the specific specifications of the aluminum tube and the hole position requirements, adapting to drilling needs at different heights. After the two drilling bits 8 are positioned relative to the aluminum tube, the spindle motor 7 starts to drive the drilling bits 8 to rotate. After the two drilling bits 8 reach the speed required for drilling, the two drilling bits 8 continue to move in opposite directions until they pass through the aluminum tube and enter the through hole 30, completing the bidirectional symmetrical drilling operation. The bidirectional drilling process allows for uniform stress distribution on the aluminum tube, further reducing tube deformation and significantly improving drilling efficiency. After drilling is completed, the first electric telescopic rod 5 retracts, causing the lifting frame 3 to move upward. The slope pushing frame 17 then moves upward and releases the compression limit on the slope driven frame 18. At this point, the elastic spring 15 releases its elastic potential energy, pushing the two opposing frames 11 to reverse and move away, causing the two processing drill bits 8 to exit the hole. Subsequently, the lifting frame 3 continues to move upward, and the fine-tuning spring 6 resets, pulling the combined inner support frame 4 upward synchronously. The drive sleeve 31 disengages from the pushing limit of the supporting vertical rod 28. Under the weight of its own, the drive sleeve 31 retracts, causing the linkage frame 32 to retract and the inner support arc frame 33 to retract, releasing the internal support and fixing of the aluminum tube. This continues until the combined inner support frame 4 is completely withdrawn from the aluminum tube. Then, the servo motor 25 is activated to drive the rotation of the rotating ring 24, transferring the finished aluminum tube from the processing station. Simultaneously, the aluminum tube to be processed at the next station is transferred to the processing area, completing the fully automated processing operation of loading, inner support, drilling, resetting, and unloading in a cycle. The opening of the through hole 30 and the horizontal hole can be adjusted according to the number and shape of the holes on the aluminum tube, as shown in the attached diagram. Figure 15 and attached Figure 16 For two other types of horizontal hole and through hole 30 opening forms, among which attached Figure 15 Suitable for creating strip holes, with attachment Figure 16 To accommodate the opening of multiple circular holes.

[0030] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0031] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An automatic drilling device for aluminum tube processing, characterized in that, This includes the body, internal support structure, and displacement machining structure; The machine body includes a platform frame (1) and a mounting frame (2). The mounting frame (2) is fixedly connected to the top of the platform frame (1). A rotary feeding assembly is rotatably installed inside the platform frame (1). The internal support structure includes a lifting frame (3), a combined internal support frame (4), and a first electric telescopic rod (5). The lifting frame (3) is slidably installed in the mounting frame (2). The combined internal support frame (4) and the lifting frame (3) are in sliding fit. A fine-tuning spring (6) is connected between the lifting frame (3) and the combined internal support frame (4). The first electric telescopic rod (5) is installed in the mounting frame (2). The actuator of the first electric telescopic rod (5) is connected to the lifting frame (3). The shifting machining structure includes two spindle motors (7), both of which are mounted in the mounting frame (2) via a shifting assembly. A machining drill bit (8) is mounted on the execution shaft of each of the two spindle motors (7), and a transmission mechanism is installed between the shifting assembly and the lifting frame (3).

2. The automatic drilling equipment for aluminum tube processing according to claim 1, characterized in that: The displacement assembly includes a lifting frame (9) and a second electric telescopic rod (10). The lifting frame (9) is slidably connected to the mounting frame (2). The second electric telescopic rod (10) is installed in the mounting frame (2), and the actuator of the second electric telescopic rod (10) is fixedly connected to the lifting frame (9). The lifting frame (9) has two displacement frames (11) slidably installed, and the two main spindle motors (7) are respectively installed in the two displacement frames (11).

3. The automatic drilling equipment for aluminum tube processing according to claim 2, characterized in that: Both of the aforementioned shifting frames (11) are fixedly connected with a first round rod (12) and a second round rod (13). The lifting frame (9) has two first round holes and two second round holes. The two first round rods (12) are slidably fitted in the two first round holes, and the two second round rods (13) are slidably fitted in the two second round holes. Both of the first round rods (12) are fixedly connected with a synchronization frame (14), and the two synchronization frames (14) are fixedly connected to the two second round rods (13). Two synchronous frames (14) abut against two elastic springs (15), and four elastic springs (15) abut against the lifting frame (9). The four elastic springs (15) are respectively fitted outside the two first round rods (12) and the two second round rods (13).

4. The automatic drilling equipment for aluminum tube processing according to claim 3, characterized in that: The transmission mechanism includes a synchronization plate (16), which is fixedly connected to the outside of the lifting frame (3). The synchronization plate (16) is fixedly connected to two slope push frames (17), each of which is equipped with a slope driven frame (18). The two slope driven frames (18) are slidably connected to two opposing frames (11) respectively, and the two slope driven frames (18) are slidably installed in the mounting frame (2).

5. The automatic drilling equipment for aluminum tube processing according to claim 4, characterized in that: The mounting bracket (2) is fixedly connected with a first guide shaft (19) and a second guide shaft (20). The two slope driven brackets (18) are fixedly connected with a first guide ring (21) and a second guide ring (22). The two first guide rings (21) are slidably connected to the first guide shaft (19), and the two second guide rings (22) are slidably connected to the second guide shaft (20). The two shift brackets (11) are slidably connected with lifting rods (23). The two lifting rods (23) are fixedly connected to the two slope driven brackets (18) respectively.

6. The automatic drilling equipment for aluminum tube processing according to claim 5, characterized in that: The rotary feeding assembly includes a rotating ring (24) and a servo motor (25). The rotating ring (24) is rotatably connected inside the platform frame (1). The servo motor (25) is installed inside the platform frame (1) and is connected to the rotating ring (24) in a transmission manner. A desktop plate (26) is provided on the platform frame (1). An annular opening matching the rotating ring (24) is opened on the desktop plate (26). Multiple load racks (27) are fixedly connected to the rotating ring (24). Supporting vertical rods (28) are fixedly connected to each of the multiple load racks (27). Multiple elastic umbrella-shaped pieces (29) are fixedly connected to the outside of each of the multiple supporting vertical rods (28).

7. The automatic drilling equipment for aluminum tube processing according to claim 6, characterized in that: The combined inner support frame (4) has a horizontal hole, and the bottom end of the combined inner support frame (4) has a central bottom groove and four side grooves. A drive sleeve (31) is slidably connected in the central bottom groove. The drive sleeve (31) is hinged to four linkage frames (32). Each of the four linkage frames (32) is hinged to an inner support arc frame (33). The four inner support arc frames (33) are slidably fitted in the four side grooves. Each of the two inner support arc frames (33) corresponding to the horizontal hole has a machining through hole (30). The two machining through holes (30) provide insertion space for two machining drill bits (8). The drive sleeve (31) matches the support vertical rod (28).

8. The automatic drilling equipment for aluminum tube processing according to claim 7, characterized in that: The combined inner support frame (4) is composed of multiple separate parts spliced ​​and fixed together. A guide frame (34) is fixedly connected to the combined inner support frame (4). A limit ring (35) is fixedly connected to the outside of the guide frame (34). The top of the guide frame (34) is fixedly connected to the fine adjustment spring (6). A connecting frame (40) is fixedly connected to the top of the fine adjustment spring (6). The connecting frame (40) is fixedly connected to the lifting frame (3). The connecting frame (40) is fixedly connected to the actuator of the first electric telescopic rod (5).

9. An automatic drilling device for aluminum tube processing according to claim 8, characterized in that: The mounting bracket (2) is fitted with a sheet metal skin (36). The sheet metal skin (36) is provided with a turning inlet and a turning outlet. The turning inlet and the turning outlet are fixedly connected to sheet metal covers (37). The two sheet metal covers (37) are fixedly connected to a first isolation member (38) and a second isolation member (39). The two first isolation members (38) are respectively matched with the two second isolation members (39).

10. A method for operating an automatic drilling device for aluminum tube processing, characterized in that, The automatic drilling equipment for aluminum tube processing according to any one of claims 1-9 includes the following steps: S1. First, complete the equipment installation, then load the aluminum tube into the rotary feeding assembly to clamp and position the aluminum tube to be processed. With the operation of the rotary feeding assembly, the aluminum tube installed on it can be automatically transported into the processing station to facilitate subsequent internal support fixing and drilling operations. S2. The lifting frame (3) is controlled by the operation of the first electric telescopic rod (5) to slide down inside the mounting frame (2), which drives the combined inner support frame (4) to fall down synchronously, so that the combined inner support frame (4) extends into the interior of the aluminum tube to be processed, and the combined inner support frame (4) provides internal support for the aluminum tube. S3. After the combined inner support frame (4) provides internal support for the aluminum tube, the first electric telescopic rod (5) continues to control the lifting frame (3) to fall. The support vertical rod (28) in the rotary feeding assembly will limit the movement of the combined inner support frame (4). After that, as the lifting frame (3) continues to fall, the combined inner support frame (4) will not fall further. The fine adjustment spring (6) between the two will generate elastic compression. Then, when the lifting frame (3) continues to fall, the transmission mechanism and the power transmission of the opposing component will drive the opposing component to operate synchronously, drive the two main spindle motors (7) to move relative to each other, and realize that the two processing drill bits (8) feed symmetrically from both sides of the aluminum tube to perform synchronous drilling on the fixed aluminum tube. S4. After the drilling of a single aluminum tube is completed, the lifting frame (3) is raised, the two spindle motors (7) move away from each other, and the two drilling bits (8) also exit relative to the completed drilling. Then the combined inner support frame (4) moves upward to reset and releases the internal support and fixation of the aluminum tube. S5. After the combined inner support frame (4) has completely exited relative to the aluminum tube being processed, the processed aluminum tube is sent out of the processing station by the rotary feeding assembly, and the next aluminum tube to be processed is fed at the same time, so as to realize continuous cycle processing operation.

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