A kind of zinc magnesium aluminum square tube processing drilling machine

Abstract

The application relates to a zinc-magnesium-aluminum square tube machining drilling machine, and belongs to the technical field of zinc-magnesium-aluminum square tube machining.The zinc-magnesium-aluminum square tube machining drilling machine comprises a bearing assembly, a driving punching mechanism, an inner-outer positioning clamping polishing mechanism, a supporting limiting assembly and a zinc-magnesium-aluminum square tube.The inner-outer positioning clamping polishing mechanism simultaneously positions and clamps the zinc-magnesium-aluminum square tube from the inside and outside, and the driving punching mechanism punches the zinc-magnesium-aluminum square tube.When the punching is completed, the inner-outer positioning clamping polishing mechanism rotates to polish the inner wall hole of the zinc-magnesium-aluminum square tube.The inner-outer positioning clamping polishing mechanism realizes the bidirectional positioning and clamping of the zinc-magnesium-aluminum square tube from the inside and outside, the electric push rod II synchronously drives the inner supporting polishing assembly to expand and the outer clamping limiting assembly to clamp, the inner wall and the outer wall of the zinc-magnesium-aluminum square tube are stably supported and clamped, and the zinc-magnesium-aluminum square tube is effectively prevented from being displaced and deformed during the drilling process.

Description

Technical Field

[0001] This invention belongs to the field of zinc-magnesium-aluminum square tube processing technology, and specifically relates to a drilling machine for processing zinc-magnesium-aluminum square tubes. Background Technology

[0002] Zinc-magnesium-aluminum square tubes, with their lightweight, corrosion-resistant, and high-strength properties, are widely used in construction, automotive, and aerospace industries. In actual production, drilling is required for these tubes according to assembly needs. However, due to their thin-walled structure and unique texture, traditional drilling equipment suffers from several drawbacks: existing equipment often uses a single external clamp or internal support to position the tube, resulting in poor positioning stability and issues such as tube displacement and hole misalignment during drilling. Furthermore, the concentrated stress around the hole during drilling of thin-walled zinc-magnesium-aluminum square tubes easily leads to indentations and deformation, resulting in decreased drilling quality and failing to meet high-precision assembly requirements. Additionally, existing clamping mechanisms are mostly fixed-size designs, unable to adapt to different wall thicknesses and specifications of zinc-magnesium-aluminum square tubes, resulting in poor versatility. Moreover, the debris generated during drilling is difficult to remove, easily clogging the drilling channel and affecting drilling efficiency and hole smoothness.

[0003] To address the shortcomings of the existing technology, this invention provides a drilling machine for processing zinc-magnesium-aluminum square tubes. By optimizing the positioning and clamping structure and integrating the driving and limiting functions, it solves the technical problems of unstable positioning, easy denting of square tubes, and poor adaptability of existing equipment, thereby improving drilling accuracy and processing efficiency and meeting the needs of industrial mass production. Summary of the Invention

[0004] The purpose of this invention is to provide a drilling machine for processing zinc-magnesium-aluminum square tubes that has a simple structure and reasonable design in order to solve the above-mentioned problems.

[0005] The present invention achieves the above objectives through the following technical solutions: A drilling machine for processing zinc-magnesium-aluminum square tubes includes a load-bearing component, a driving drilling mechanism, an inner and outer positioning clamping and grinding mechanism, a support and limiting component, and a zinc-magnesium-aluminum square tube. When the inner and outer positioning clamping and grinding mechanism simultaneously positions and clamps the zinc-magnesium-aluminum square tube from the inside and outside, it drives the drilling mechanism to drill holes in the zinc-magnesium-aluminum square tube. After drilling is completed, the inner and outer positioning clamping and grinding mechanism rotates to grind the holes in the inner wall of the zinc-magnesium-aluminum square tube.

[0006] As a further optimization of the present invention, the internal and external positioning clamping and grinding mechanism includes multiple internal support grinding components, an external clamping and limiting component, an electric push rod II, and a limiting mounting plate. An electric push rod II is installed at one end of one side of the multiple limiting mounting plates. An external clamping and limiting component is installed at the output end of the electric push rod II, located outside the internal support grinding components and cooperating with them. The external clamping and limiting component is rotatably connected to the internal support grinding components.

[0007] As a further optimization of the present invention, the internal support grinding assembly includes multiple fixed plates II, each of which has a mounting rod extending to its exterior rotatably mounted inside. A servo motor III for driving the mounting rod to rotate is fixed to the other side of each fixed plate II. Multiple arc-shaped support grinding plates are provided on the exterior of the mounting rod. Multiple through slots II are provided inside each of the arc-shaped support grinding plates. A rotating rod I is rotatably mounted on the side of each arc-shaped support grinding plate that is close to each other. The other end of each rotating rod I is rotatably connected to the exterior of the mounting rod. A rotating rod II is rotatably mounted on the side of each arc-shaped support grinding plate that is close to the servo motor III. The other end of each rotating rod II is rotatably fitted with a slip ring that fits onto the exterior of the mounting rod.

[0008] As a further optimization of the present invention, the external clamping and limiting assembly includes two external clamping plates placed at both ends of the mounting rod. The two outer clamping plates are slidably connected to slide rails on both sides of their bottoms. The two outer clamping plates are rotatably connected to rotating rods on the side of their opposite ends that are away from the slip ring. The other ends of the two rotating rods are rotatably connected to rotating arm assemblies.

[0009] As a further optimization of the present invention, the other ends of the two rotating arm assemblies are rotatably connected to a cross-shaped connecting sleeve block. The cross-shaped connecting sleeve block is slidably fitted onto the outside of the mounting rod. An annular groove is provided on the side of the cross-shaped connecting sleeve block near the rotating arm assembly. The slip ring is embedded in the interior of the annular groove and rotatably connected thereto. The output end of the second electric push rod is fixedly connected to the outside of the cross-shaped connecting sleeve block through a connecting plate.

[0010] As a further optimization of the present invention, the rotating arm assembly includes an extension rod and an adjusting sleeve. The extension rod is rotatably connected to the other end of the rotating rod. The adjusting sleeve is rotatably connected to the outside of the cross-shaped connecting sleeve block. A connecting rod that slides into the adjusting sleeve is fixed on the side of the extension rod near the adjusting sleeve. The top of the connecting rod is provided with a plurality of internally threaded fixing holes. An adjusting bolt that extends into the internally threaded fixing holes is threaded through the top of the adjusting sleeve near the extension rod. The adjusting bolt is threadedly engaged with the internally threaded fixing holes.

[0011] As a further optimization of the present invention, the bearing component includes a base plate, both ends of which are provided with through grooves, a plurality of fixing plates are fixedly located on one side of the top of the base plate, the limiting mounting plate is fixed on the side of the top of the base plate near the fixing plates and placed directly below the mounting rod, and the bottom of the plurality of slide rails is fixedly connected to the top of the base plate.

[0012] As a further optimization of the present invention, the driving drilling mechanism includes a mounting driving component and a drilling component. The mounting driving component includes a guide rod fixedly placed inside a through slot, and a driving screw rotatably mounted inside another through slot. A sleeve block is slidably fitted through the outside of the guide rod, and an internally threaded sleeve block is threaded through the outside of the driving screw. A servo motor for driving the driving screw to rotate is fixed at one end of one side of the base plate. A U-shaped fixing frame placed outside the inner and outer positioning clamping grinding mechanism is fixed together with the top of the internally threaded sleeve block and the top of the sleeve block.

[0013] As a further optimization of the present invention, the drilling assembly includes multiple electric push rods one fixedly located on the top of the U-shaped fixing frame. The multiple electric push rods one are grouped in pairs. The output ends of the bottom of two electric push rods one slide through the U-shaped fixing frame and are fixedly installed with a fixing plate one. Guide limiting rods that slide through the top of the U-shaped fixing frame and are placed on both sides of the electric push rods one are fixed on both sides of the fixing plate one. A servo motor two is fixed at the bottom of the fixing plate one. A drill bit is fixedly installed at the output end of the bottom of the servo motor two.

[0014] As a further optimization of the present invention, the support limiting component includes multiple slide rails two fixed to the other side of the top of the base plate. Both ends of the slide rails two are slidably connected to limiting clamps. Two limiting clamps cooperate with each other. The ends of the two limiting clamps that are close to each other on the side away from the mounting rod are fixed with internal threaded fixing blocks. Bolts pass through the internal threads of the two internal threaded fixing blocks.

[0015] The beneficial effects of this invention are as follows: 1. This invention achieves bidirectional positioning and clamping of zinc-magnesium-aluminum square tubes through an internal and external positioning clamping and grinding mechanism. The electric push rod II synchronously drives the expansion of the internal support grinding component and the clamping and limiting component to clamp, so that the inner and outer walls of the zinc-magnesium-aluminum square tubes are subjected to stable support and clamping force, effectively preventing displacement and deformation of the zinc-magnesium-aluminum square tubes during drilling. At the same time, the through groove II on the arc-shaped support grinding plate can provide targeted support at the hole position, preventing hole depression and grinding function, significantly improving drilling accuracy and hole wall smoothness.

[0016] 2. The present invention utilizes the rotating arm assembly in the external clamping and limiting component, whose length can be adjusted by adjusting bolts and connecting rods to adapt to zinc-magnesium-aluminum square tubes with different wall thicknesses; the arc-shaped support grinding plate in the internal support grinding component can achieve synchronous expansion and contraction through slip rings and rotating rods to adapt to zinc-magnesium-aluminum square tubes with different inner diameters, eliminating the need to replace clamping components, reducing production costs, and improving the versatility of the equipment.

[0017] 3. This invention enables the drilling component to reciprocate by driving the installation drive component in the drilling mechanism, thereby achieving drilling processing at any position of zinc-magnesium-aluminum square tubes without the need for manual adjustment of the workpiece position; the spiral chip removal groove on the drill bit can promptly remove chips, avoiding blockage of the drilling channel and improving drilling efficiency; the driving of each component adopts servo motors and electric push rods, which are precise in control, convenient in operation, and can realize automated batch processing.

[0018] 4. This invention provides limiting support for the end of the mounting rod through a support and limiting component, preventing the mounting rod from swaying in mid-air and improving the structural stability of the entire device; all rotating connection parts are equipped with bearings to reduce wear and extend the service life of the device; at the same time, the through slot can protect the installation drive component, preventing debris and foreign objects from entering the internal parts and ensuring the operating accuracy of the device. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention. Figure 1 ; Figure 2 This is a schematic diagram of the overall structure of the present invention. Figure 2 ; Figure 3 This is a schematic diagram of the support structure of the zinc-magnesium-aluminum square tube of the present invention; Figure 4 This is a cross-sectional view of the zinc-magnesium-aluminum square tube of the present invention. Figure 5 This is a schematic diagram of the internal support and external clamping structure of the present invention; Figure 6 This is a schematic diagram of the internal support grinding assembly of the present invention; Figure 7 This is a three-dimensional structural diagram of the slip ring of the present invention. Figure 1 ; Figure 8 This is a three-dimensional structural diagram of the slip ring of the present invention. Figure 2 ; Figure 9 This is a three-dimensional structural schematic diagram of the external clamping and limiting component of the present invention; Figure 10 This is a three-dimensional structural cross-sectional view of the rotating arm assembly of the present invention; Figure 11 This is a three-dimensional structural schematic diagram of the annular groove of the present invention; Figure 12 This is a three-dimensional structural schematic diagram of the extension rod of the present invention; Figure 13 This is a three-dimensional structural schematic diagram of the support and limiting component of the present invention; Figure 14 This is a three-dimensional side view of the driving drilling mechanism of the present invention; Figure 15This is a bottom side view of the three-dimensional structure of the drilling mechanism of the present invention.

[0020] In the diagram: 1. Bearing component; 101. Base plate; 102. Through slot one; 2. Driving drilling mechanism; 201. Mounting drive component; 2011. Servo motor one; 2012. Drive screw; 2013. U-shaped fixing bracket; 2014. Guide rod; 2015. Internal threaded sleeve; 2016. Sleeve block; 202. Drilling component; 2021. Electric push rod one; 2022. Guide limit rod; 2023. Fixing plate one; 2024. Servo motor two; 2025. Drill bit; 3. Internal and external positioning clamping grinding mechanism; 301. Internal support grinding component; 3011. Servo motor three; 3012. Fixing plate two; 3013. Mounting rod; 3014. Arc-shaped support grinding plate; 30 15. Through groove two; 3016. Rotating rod one; 3017. Rotating rod two; 3018. Slip ring; 302. External clamping and limiting assembly; 3021. Annular slide groove; 3023. Cross-shaped connecting sleeve block; 3024. Rotating arm assembly; 30241. Adjusting sleeve; 30242. Extension rod; 30245. Connecting rod; 30246. Internal threaded fixing hole; 30247. Adjusting bolt; 3025. Rotating rod three; 3026. Outer clamping plate; 3027. Slide rail one; 303. Electric push rod two; 304. Limiting mounting plate; 4. Support limiting assembly; 401. Slide rail two; 402. Bolt; 403. Internal threaded fixing block; 404. Limiting clamping plate; 5. Zinc-magnesium-aluminum square tube. Detailed Implementation

[0021] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0022] Example 1, such as Figure 1 , Figure 2As shown, a drilling machine for processing zinc-magnesium-aluminum square tubes includes a load-bearing component 1, a driving drilling mechanism 2, an internal and external positioning clamping and grinding mechanism 3, a support and limiting component 4, and a zinc-magnesium-aluminum square tube 5. The load-bearing component 1 serves as the mounting base for the entire drilling machine, supporting all components such as the driving drilling mechanism 2, the internal and external positioning clamping and grinding mechanism 3, and the support and limiting component 4, ensuring the stability of each component after assembly. The load-bearing component 1 includes a base plate 101, which adopts an integrated molding structure. Both ends of the base plate 101 have through slots 102. The through slots 102 provide space for the installation of the driving component 201 in the driving drilling mechanism 2, while preventing the driving component 201 from being exposed. This prevents debris and foreign matter from entering the component during processing and affecting its operating accuracy. Furthermore, the through slots 102 reduce the overall weight of the base plate 101, achieving a lightweight design for the equipment.

[0023] like Figure 1 , Figure 2 , Figure 3 , Figure 14 , Figure 15 As shown, the driving drilling mechanism 2 is used to drill holes in the zinc-magnesium-aluminum square tube 5. It can drive the drilling assembly 202 to move back and forth, adapting to the drilling requirements at different positions of the zinc-magnesium-aluminum square tube 5. It includes a mounting drive assembly 201 located inside the through groove 102 and a drilling assembly 202 placed above the top of the base plate 101. The drilling assembly 202 is mounted on top of the mounting drive assembly 201. The mounting drive assembly 201 is used to drive the drilling assembly 202 to move back and forth along the length of the base plate 101 to ensure the drilling position. The precision is achieved through the following specific structure: The installation drive assembly 201 includes a guide rod 2014 fixedly placed inside a through slot 102. The two ends of the guide rod 2014 are fixedly connected to the inner sidewall of the through slot 102 to achieve stable installation of the guide rod 2014. A drive screw 2012 is rotatably installed inside another through slot 102. The two ends of the drive screw 2012 are rotatably connected to the inner sidewall of the through slot 102 through bearings to ensure smooth rotation of the drive screw 2012 and reduce wear.

[0024] like Figure 1 , Figure 2 , Figure 3 , Figure 14 , Figure 15As shown, a sleeve block 2016 is slidably fitted through the guide rod 2014, and an internally threaded sleeve block 2015 is threaded through the external thread of the drive screw 2012. When the drive screw 2012 rotates, it can drive the internally threaded sleeve block 2015 to move along the length of the drive screw 2012. A servo motor 2011 is fixed at one end of one side of the base plate 101. The output end of the servo motor 2011 rotates through the base plate 101 and is fixedly connected to the drive screw 2012 to realize the rotation of the drive screw 2012. The servo motor 2011 is a servo motor of model MSME102G1U. Its output shaft is fixedly connected to one end of the drive screw 2012 through a coupling to ensure the stability of power transmission. The servo motor 2011 has the characteristics of adjustable speed and precise positioning, which can accurately control the rotation angle of the drive screw 2012, and thus accurately control the moving distance of the internally threaded sleeve block 2015. The tops of the internal threaded sleeve 2015 and the sleeve 2016 are jointly fixed with a U-shaped fixing bracket 2013. The U-shaped fixing bracket 2013 is used to install the drilling component 202, so as to realize the synchronous movement of the drilling component 202 and the installation drive component 201. The guide rod 2014 slides and engages with the sleeve 2016, which can prevent the internal threaded sleeve 2015 from deflecting as the drive screw 2012 rotates, thereby improving the stability of the U-shaped fixing bracket 2013 when it moves, ensuring that the drilling component 202 is always in a horizontal state during the movement, and avoiding the hole tilting during drilling.

[0025] like Figure 1 , Figure 2 , Figure 3 , Figure 14 , Figure 15As shown, the drilling assembly 202 is used to directly drill holes in the zinc-magnesium-aluminum square tube 5. It includes multiple electric push rods 2021 fixed on the top of the U-shaped fixing frame 2013. The multiple electric push rods 2021 are arranged in pairs, and each pair of electric push rods 2021 is symmetrically arranged to ensure that the driving force on the fixing plate 2023 is uniform and to avoid tilting when the fixing plate 2023 is raised or lowered. The output ends of the two electric push rods 2021 slide through the U-shaped fixing frame 2013 and are fixedly installed with the fixing plate 2023. The electric push rods 2021 can drive the fixing plate 2023 to rise and fall vertically, thereby moving the drill bit 2025 closer to or away from the zinc-magnesium-aluminum square tube 5, realizing the start and stop of the drilling action. Guide limit rods 202 are fixed on both sides of the fixing plate 2023. The two guide limit rods 202 slide through the inner top of the U-shaped fixing frame 2013. The guide limit rods 2022 slide with the U-shaped fixing frame 2013 to play a guiding and limiting role, further ensuring the stability of the fixing plate 2023 when it rises and falls, preventing it from deviating, and ensuring that the drilling direction of the drill bit 2025 is always perpendicular to the surface of the zinc-magnesium-aluminum square tube 5, thus improving the drilling accuracy. Servo motor 2024 is fixed to the bottom of fixed plate 1 2023. Servo motor 2024 is a model MSME082G1U servo motor with its output shaft facing downward. Drill bit 2025 is fixedly installed at the output end of the bottom of servo motor 2024. Servo motor 2024 can drive drill bit 2025 to rotate at high speed to realize drilling of zinc magnesium aluminum square tube 5. Spiral chip removal groove is opened on the outside of drill bit 2025. The chips generated during drilling can be discharged in time through spiral chip removal groove to avoid chips blocking the drilling channel, prevent wear of drill bit 2025 or burrs on the hole wall, and at the same time reduce the resistance during drilling, improve drilling efficiency and hole wall smoothness.

[0026] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8As shown, the internal and external positioning clamping and grinding mechanism 3 is used to perform bidirectional internal and external positioning and clamping of the zinc-magnesium-aluminum square tube 5 to ensure the stability of the zinc-magnesium-aluminum square tube 5 during the drilling process, prevent its displacement and deformation, and thus improve the drilling quality. It includes an internal support grinding component 301, an external clamping and limiting component 302, an electric push rod 303, and a limiting mounting plate 304. The internal support grinding component 301 is used to support the inside of the zinc-magnesium-aluminum square tube 5 and can grind the inner wall of the zinc-magnesium-aluminum square tube 5 to ensure the smoothness of the inner wall. It includes multiple fixing plates 3012 fixed on one side of the top of the base plate 101. The multiple fixing plates 3012 are evenly arranged along the length of the base plate 101 and are used to install mounting rods 3013. The mounting rods 3013 extending to the outside are rotatably installed inside the multiple fixing plates 3012. The mounting rods 3013 are rotatably connected to the fixing plates 3012 through bearings to ensure the smoothness of the rotation of the mounting rods 3013.

[0027] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 As shown, a servo motor 3011 for driving the mounting rod 3013 to rotate is fixed on the other side of the fixing plate 2 3012. The servo motor 3011 is a servo motor of model MSME062G1U. Its output shaft is fixedly connected to one end of the mounting rod 3013 through a coupling, which can drive the mounting rod 3013 to rotate, thereby driving the arc-shaped support grinding plate 3014 to rotate, so as to achieve grinding of the inner wall of the zinc-magnesium-aluminum square tube 5. The limiting mounting plate 304 is fixed on the top of the base plate 101 near the fixing plate 2 3012 and placed directly below the mounting rod 3013. It is used to install the electric push rod 2 303 and at the same time provides auxiliary support for the mounting rod 3013, improving the stability of the mounting rod 3013 when rotating. The mounting rod 3013 is provided with multiple arc-shaped support grinding plates 3014 on its exterior. These arc-shaped support grinding plates 3014 are evenly arranged along the circumference of the mounting rod 3013, and their curvature matches the curvature of the inner wall of the zinc-magnesium-aluminum square tube 5. They can fit tightly against the inner wall of the zinc-magnesium-aluminum square tube 5 to achieve stable support. The interior of each of the multiple arc-shaped support grinding plates 3014 is provided with multiple through grooves 3015. The through grooves 3015 can avoid the drill bit 2025 and prevent the arc-shaped support grinding plates 3014 from blocking the drilling action. On the other hand, they can support the inner wall of the zinc-magnesium-aluminum square tube 5 at the drilling position, preventing the stress around the hole from concentrating and causing depressions and deformation during drilling. At the same time, they can facilitate the discharge of drilling debris.

[0028] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 As shown, rotating rods 3016 are rotatably mounted on the adjacent sides of multiple arc-shaped support grinding plates 3014. The other ends of the multiple rotating rods 3016 are rotatably connected to the outside of the mounting rod 3013. The rotating rods 3016 are used to connect the arc-shaped support grinding plates 3014 to the mounting rod 3013, and at the same time, they limit the arc-shaped support grinding plates 3014 to ensure that the multiple arc-shaped support grinding plates 3014 expand or contract synchronously; the multiple arc-shaped support grinding plates 3014 are close to the servo... One side of the motor 3011 is equipped with a rotating rod 3017. The other end of the multiple rotating rods 3017 is equipped with a slip ring 3018 that is fitted on the outside of the mounting rod 3013. The slip ring 3018 can slide along the length of the mounting rod 3013. When the slip ring 3018 moves, it can drive multiple arc-shaped support grinding plates 3014 to expand or contract synchronously through the rotating rods 3017, thereby adapting to zinc-magnesium-aluminum square tubes 5 with different inner diameters and achieving tight support for the inner wall of the zinc-magnesium-aluminum square tube 5.

[0029] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 9 , Figure 10 , Figure 11 , Figure 12As shown, the external clamping and limiting component 302 cooperates with the internal support and grinding component 301 to clamp and limit the outside of the zinc-magnesium-aluminum square tube 5, thereby achieving bidirectional positioning of the zinc-magnesium-aluminum square tube 5. It includes two external clamping plates 3026 placed at both ends of the mounting rod 3013. The two external clamping plates 3026 are symmetrically arranged, and their inner sidewalls are adapted to the outer wall of the zinc-magnesium-aluminum square tube 5, so as to tightly fit the outer wall of the zinc-magnesium-aluminum square tube 5 and achieve external clamping. Both sides of the bottom of the two outer clamping plates 3026 are slidably connected to slide rails 3027 fixed to the top of the base plate 101. The slide rails 3027 are arranged along the width of the base plate 101 to guide the movement of the outer clamping plates 3026, ensuring the smoothness of the movement of the outer clamping plates 3026 and preventing the outer clamping plates 3026 from deviating during movement. The two outer clamping plates 3026 are rotatably connected to rotating rods 3025 on the side away from the slip ring 3018. The other ends of the two rotating rods 3025 are rotatably connected to rotating arm assemblies 3024. The rotating rods 3025 are used to connect the outer clamping plates 3026 and the rotating arm assemblies 3024, transmitting the power of the rotating arm assemblies 3024 to the outer clamping plates 3026, driving the outer clamping plates 3026 to move along the slide rails 3027. The other ends of the two rotating arm assemblies 3024 are rotatably connected to a cross-shaped connecting sleeve 3023. The cross-shaped connecting sleeve 3023 is slidably fitted onto the outside of the mounting rod 3013 and can slide along the length of the mounting rod 3013. It is used to connect the two rotating arm assemblies 3024 and realize the synchronous movement of the two rotating arm assemblies 3024. An annular groove 3021 is opened on the side of the cross-shaped connecting sleeve 3023 near the rotating arm assembly 3024. A slip ring 3018 is embedded in the annular groove 3021 and rotatably connected to it. This design ensures that the cross-shaped connecting sleeve 3023 remains stationary when the slip ring 3018 rotates with the mounting rod 3013, avoiding interference between the two, while achieving synchronous movement of the slip ring 3018 and the cross-shaped connecting sleeve 3023. The output end of the electric push rod 303 is fixedly connected to the outside of the cross-shaped connecting sleeve 3023 through a connecting plate. The electric push rod 303 can drive the cross-shaped connecting sleeve 3023 to move along the length of the mounting rod 3013, thereby driving the rotating arm assembly 3024 and the slip ring 3018 to move synchronously.

[0030] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 9 , Figure 10 , Figure 11 , Figure 12As shown, the rotating arm assembly 3024 is used to adjust the distance between the two outer clamping plates 3026 to accommodate zinc-magnesium-aluminum square tubes 5 with different wall thicknesses. It includes an extension rod 30242 rotatably connected to the other end of the rotating rod 3025 and an adjusting sleeve 30241 rotatably connected to the outside of the cross-shaped connecting sleeve block 3023. A connecting rod 30245 is fixed to the side of the extension rod 30242 near the adjusting sleeve 30241, slidingly extending into the interior of the adjusting sleeve 30241. The connecting rod 30245 can slide along the length of the adjusting sleeve 30241, achieving relative extension and retraction between the extension rod 30242 and the adjusting sleeve 30241. Multiple internally threaded fixing holes 3024 are provided at the top of the connecting rod 30245. 6. Multiple internal threaded fixing holes 30246 are evenly arranged along the length of the connecting rod 30245. The top of the adjusting sleeve 30241, near the extension rod 30242, has an adjusting bolt 30247 that extends into the internal threaded fixing hole 30246. The adjusting bolt 30247 is threadedly engaged with the internal threaded fixing hole 30246 to lock the relative position of the extension rod 30242 and the adjusting sleeve 30241. When it is necessary to adapt to zinc-magnesium-aluminum square tubes 5 with different wall thicknesses, loosen the adjusting bolt 30247, push the extension rod 30242 to extend and retract along the adjusting sleeve 30241, and after adjusting to the appropriate length, tighten the adjusting bolt 30247 to complete the fixation. The operation is convenient and highly versatile.

[0031] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 9 , Figure 10 , Figure 11 , Figure 12As shown, the internal and external positioning clamping grinding mechanism 3 also includes multiple limiting mounting plates 304 fixed on the top of the base plate 101 near the side of the internal support grinding assembly 301. The multiple limiting mounting plates 304 correspond one-to-one with the internal support grinding assembly 301, and the limiting mounting plates 304 are placed directly below the internal support grinding assembly 301. They are used to stably install the electric push rod 303, and at the same time provide auxiliary support for the mounting rod 3013, thereby improving the installation stability of the mounting rod 3013. One end of each of the limiting mounting plates 304 is fixed with an electric push rod 2 303. The output end of the electric push rod 2 303 is fixedly connected to the cross-shaped connecting sleeve block 3023 in the external clamping limiting assembly 302 through a connecting plate. When the electric push rod 2 303 is driven, it can drive the cross-shaped connecting sleeve block 3023 to move along the length of the mounting rod 3013. When the cross-shaped connecting sleeve block 3023 moves, on the one hand, it drives the two outer clamping plates 3026 to move closer to each other along the slide rail 1 3027 through the rotating arm assembly 3024 and the rotating rod 3025, thereby clamping the outside of the zinc-magnesium-aluminum square tube 5; on the other hand, the cross-shaped connecting sleeve block 3023 drives the slip ring 3018 to move synchronously through the annular slide groove 3021. When the slip ring 3018 moves, it drives the multiple arc-shaped support grinding plates 3014 to expand synchronously through the rotating rod 2 3017, thereby supporting the inside of the zinc-magnesium-aluminum square tube 5, and thus achieving the clamping of the inside and outside of the zinc-magnesium-aluminum square tube 5. Simultaneous fixation of the parts enhances positioning stability and effectively prevents displacement and deformation of the zinc-magnesium-aluminum square tube 5 during drilling. Finally, the inner support grinding component 301 is retracted by the electric push rod 303, so that the arc-shaped support grinding plate 3014 is not tightly supported with the inner wall of the zinc-magnesium-aluminum square tube 5, and the two outer clamping plates 3026 are also retracted a certain distance, so they are not tightly clamped with the outer wall of the zinc-magnesium-aluminum square tube 5. However, the two outer clamping plates 3026 limit the external movement of the zinc-magnesium-aluminum square tube 5 to prevent it from rotating later. Finally, the servo motor 3011 drives the mounting rod 3013 and above to rotate inside the zinc-magnesium-aluminum square tube 5, thereby realizing the grinding work of the arc-shaped support grinding plate 3014 and the inside of the zinc-magnesium-aluminum square tube 5, reducing burrs in the drilling. Furthermore, the structural design of the annular groove 3021 and the slip ring 3018 enables the arc-shaped support grinding plate 3014 to rotate without obstruction later.

[0032] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 13As shown, the support limiting component 4 is used to limit and support the end of the mounting rod 3013 that is away from the servo motor 3011, thereby improving the stability of the mounting rod 3013 when it rotates and preventing the mounting rod 3013 from shaking due to one end being suspended in the air, which would affect the drilling accuracy and the support effect of the inner support grinding component 301. The support and limiting assembly 4 includes multiple slide rails 401 fixed to the other side of the top of the base plate 101. Each slide rail 401 corresponds to one of the inner support and grinding assemblies 301 and is evenly arranged along the length of the base plate 101. Limiting clamps 404 are slidably connected to both ends of the slide rails 401. The two limiting clamps 404 cooperate to clamp the end of the mounting rod 3013. Internally threaded fixing blocks 403 are fixed to the ends of the two limiting clamps 404 that are closest to each other on the side away from the mounting rod 3013. Bolts 402 pass through the internal threads of the two internally threaded fixing blocks 403, and the bolts 402 are threadedly engaged with both internally threaded fixing blocks 403. When it is necessary to limit the mounting rod 3013, the two internally threaded fixing blocks 403 are pushed... The limiting clamps 404 move closer to each other along the slide rail 401 until they are tightly fitted against the outside of the rotating rod rotatably connected to the other end of the mounting rod 3013. Then, the bolts 402 are tightened. Through the threaded engagement of the bolts 402 and the internal threaded fixing block 403, the two limiting clamps 404 are locked. The rotating rod provides limiting support to the end of the mounting rod 3013. The operation is convenient and the limiting effect is stable. The zinc-magnesium-aluminum square tube 5 is fitted outside the inner support grinding assembly 301 and placed inside the outer clamping limiting assembly 302. The inner support grinding assembly 301 and the outer clamping limiting assembly 302 work together to achieve bidirectional positioning and fixation, ensuring its stability during the drilling process and thus ensuring the drilling quality.

[0033] It should be noted that, in use, this drilling machine for processing zinc-magnesium-aluminum square tubes adjusts the matching dimensions of the inner support grinding assembly 301 and the outer clamping and limiting assembly 302 according to the inner diameter and wall thickness of the zinc-magnesium-aluminum square tube 5: loosen the adjusting bolt 30247, push the extension rod 30242 to extend and retract along the adjusting sleeve 30241, adjust the distance between the two outer clamping plates 3026 to match the wall thickness of the zinc-magnesium-aluminum square tube 5, and tighten the adjusting bolt 30247 after adjustment; at the same time, the electric push rod 303 initially drives the cross-shaped connecting sleeve block 3023 to move, and drives the arc-shaped support grinding plate 3014 to expand through the slip ring 3018 and the rotating rod 3017 to match the inner diameter of the zinc-magnesium-aluminum square tube 5; The zinc-magnesium-aluminum square tube 5 is fitted onto the outside of the arc-shaped support grinding plate 3014. The electric push rod 2 303 is activated, which drives the cross-shaped connecting sleeve 3023 to move along the mounting rod 3013. The cross-shaped connecting sleeve 3023, on the one hand, drives the two outer clamping plates 3026 to move closer to each other along the slide rail 1 3027 through the rotating arm assembly 3024 and the rotating rod 3025, thereby clamping the outside of the zinc-magnesium-aluminum square tube 5; on the other hand, the cross-shaped connecting sleeve 3023, through the slip ring 3018 and the rotating rod 2 3017, drives the arc-shaped support grinding plate 3014 to expand further, closely fitting the inner wall of the zinc-magnesium-aluminum square tube 5, thereby supporting the inside of the zinc-magnesium-aluminum square tube 5 and completing the bidirectional positioning and clamping of the zinc-magnesium-aluminum square tube 5. Push the two limiting clamps 404 in the support limiting assembly 4 closer to each other along the slide rail 2 401 until they fit against the end of the mounting rod 3013. Tighten the bolt 402 to lock the limiting clamps 404, thereby achieving limiting support for the end of the mounting rod 3013 and improving the stability of the mounting rod 3013. The servo motor 1 (2011), servo motor 2 (2024), and electric push rod 1 (2021) are activated. Servo motor 1 (2011) drives the drive screw 2012 to rotate, causing the internal threaded sleeve 2015 and the U-shaped fixing bracket 2013 to reciprocate along the guide rod 2014, thereby moving the drilling assembly 202 to the designated drilling position. Servo motor 2 (2024) drives the drill bit 2025 to rotate at high speed. Electric push rod 1 (2021) drives the fixing plate 1 (2023) and the drill bit 2025 to descend, thus drilling the zinc-magnesium-aluminum square tube. 5. Drilling is performed. During drilling, the drill bit 2025 penetrates the interior of the zinc-magnesium-aluminum square tube 5 and then extends into the through slot 3015 opened in the arc-shaped support grinding plate 3014. Through the design of the arc-shaped support grinding plate 3014 and the opening of the through slot 3015, the fixed-point support function of the drilling position inside the zinc-magnesium-aluminum square tube 5 can be realized to improve the drilling quality and reduce the collapse phenomenon caused by drilling the zinc-magnesium-aluminum square tube 5. The chips generated during the drilling process are discharged in time through the spiral chip removal groove on the drill bit 2025. After drilling is completed, servo motor 2024 shuts off, releasing the high-speed rotation of drill bit 2025. Then, electric push rod 2021 drives fixed plate 2023 and drill bit 2025 to rise, disengaging them from the zinc-magnesium-aluminum square tube 5. Electric push rod 303 then drives the inner support grinding assembly 301 to retract, preventing the arc-shaped support grinding plate 3014 from tightly supporting the inner wall of the zinc-magnesium-aluminum square tube 5, while maintaining its contact with the inner wall. The electric push rod 303 also drives the two outer clamping plates 3026 to move in the opposite direction a certain distance, preventing them from tightly clamping the outer wall of the zinc-magnesium-aluminum square tube 5. The zinc-magnesium-aluminum square tube 5 is externally limited to prevent it from rotating later. Finally, the mounting rod 3013 and above can be driven by the servo motor 3011 to rotate inside the zinc-magnesium-aluminum square tube 5, while the outer clamping plate 3026 remains unchanged. This allows the arc-shaped support grinding plate 3014 to perform grinding work inside the zinc-magnesium-aluminum square tube 5. When the arc-shaped support grinding plate 3014 rotates, it can first perform grinding work inside the zinc-magnesium-aluminum square tube 5 through the through groove 3015, reducing drilling burrs and ensuring the smoothness of the inner wall. Furthermore, through the structural design of the annular slide groove 3021 and the slip ring 3018, the arc-shaped support grinding plate 3014 can be rotated without obstruction later.

[0034] Finally, the electric push rod 303 reverses its direction, causing the outer clamping plate 3026 to loosen and the arc-shaped support grinding plate 3014 to retract, thus releasing the contact limit on the zinc-magnesium-aluminum square tube 5; loosening the bolt 402 pushes the limiting clamping plate 404 away from the mounting rod 3013, releasing the limit on the mounting rod 3013, and the finished zinc-magnesium-aluminum square tube 5 is taken out, completing one drilling operation.

[0035] The embodiments described above are merely examples of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention.

Claims

1. A drilling machine for processing zinc-magnesium-aluminum square tubes, comprising a bearing assembly (1), a driving drilling mechanism (2), an internal and external positioning clamping and grinding mechanism (3), a support and limiting assembly (4), and a zinc-magnesium-aluminum square tube (5), characterized in that: When the internal and external positioning clamping and grinding mechanism (3) simultaneously positions and clamps the zinc-magnesium-aluminum square tube (5) from the inside and outside, it drills holes in the zinc-magnesium-aluminum square tube (5) by driving the drilling mechanism (2). After the drilling is completed, the internal and external positioning clamping and grinding mechanism (3) rotates to grind the holes in the inner wall of the zinc-magnesium-aluminum square tube (5). The internal and external positioning clamping and grinding mechanism (3) includes multiple internal support grinding components (301), an external clamping and limiting component (302), an electric push rod II (303), and a limiting mounting plate (304). An electric push rod II (303) is installed at one end of one side of multiple limiting mounting plates (304). An external clamping and limiting component (302) is installed at the output end of the electric push rod II (303) located outside the internal support grinding component (301) and cooperating with it. 02), and the outer clamping limiting component (302) is rotatably connected to the inner support grinding component (301); the inner support grinding component (301) includes multiple fixing plates (3012), and each of the multiple fixing plates (3012) is rotatably mounted with a mounting rod (3013) extending to its outside. The other side of the fixing plate (3012) is fixed with a servo motor (3011) for driving the mounting rod (3013) to rotate. The outside of the mounting rod (3013) is provided with multiple arc-shaped support grinding plates (3014), and each of the multiple arc-shaped support grinding plates (3014) is provided with multiple through slots (3015). The side of the multiple arc-shaped support grinding plates (3014) that are close to each other is rotatably mounted with a rotating... The first rod (3016) has its other end rotatably connected to the outside of the mounting rod (3013). Each of the multiple arc-shaped support grinding plates (3014) has a rotating rod (3017) rotatably mounted on the side near the servo motor (3011). The other ends of the multiple rotating rods (3017) are rotatably mounted with a slip ring (3018) fitted onto the outside of the mounting rod (3013). The external clamping and limiting assembly (302) includes two outer clamping plates (3026) located at both ends of the outside of the mounting rod (3013). Slide rails (3027) are slidably connected to both sides of the bottom of the two outer clamping plates (3026). The two outer clamping plates (3026) are positioned so that one end is away from the slip ring (3018). One side of each of the two rotating rods (3025) is rotatably connected to a rotating rod three (3025). The other end of each of the two rotating rods three (3025) is rotatably connected to a rotating arm assembly (3024). The other end of each of the two rotating arm assemblies (3024) is rotatably connected to a cross-shaped connecting sleeve block (3023). The cross-shaped connecting sleeve block (3023) is slidably fitted onto the outside of the mounting rod (3013). The cross-shaped connecting sleeve block (3023) has an annular groove (3021) on the side near the rotating arm assembly (3024). The slip ring (3018) is embedded into the annular groove (3021) and rotatably connected to it. The output end of the electric push rod two (303) is fixedly connected to the outside of the cross-shaped connecting sleeve block (3023) through a connecting plate.

2. The drilling machine for processing zinc-magnesium-aluminum square tubes according to claim 1, characterized in that: The rotating arm assembly (3024) includes an extension rod (30242) and an adjusting sleeve (30241). The extension rod (30242) is rotatably connected to the other end of the rotating rod (3025). The adjusting sleeve (30241) is rotatably connected to the outside of the cross-shaped connecting block (3023). A connecting rod (30245) that slides into the interior of the adjusting sleeve (30241) is fixed on the side of the extension rod (30242) near the adjusting sleeve (30241). The top of the connecting rod (30245) is provided with a plurality of internal thread fixing holes (30246). An adjusting bolt (30247) that extends into the internal thread fixing hole (30246) is threaded through the side of the top of the adjusting sleeve (30241) near the extension rod (30242). The adjusting bolt (30247) is threadedly engaged with the internal thread fixing hole (30246).

3. The drilling machine for processing zinc-magnesium-aluminum square tubes according to claim 1, characterized in that: The bearing component (1) includes a base plate (101), and both ends of the base plate (101) are provided with through grooves (102). Multiple fixing plates (3012) are fixedly located on one side of the top of the base plate (101). The limiting mounting plate (304) is fixed on the top of the base plate (101) near the fixing plate (3012) and placed directly below the mounting rod (3013). The bottom of multiple slide rails (3027) is fixedly connected to the top of the base plate (101).

4. The drilling machine for processing zinc-magnesium-aluminum square tubes according to claim 3, characterized in that: The driving drilling mechanism (2) includes a mounting driving assembly (201) and a drilling assembly (202). The mounting driving assembly (201) includes a guide rod (2014) fixedly placed inside a through slot (102). A driving screw (2012) is rotatably mounted inside another through slot (102). A sleeve block (2016) is slidably fitted through the outside of the guide rod (2014). An internal thread sleeve block (2015) is threaded through the outside of the driving screw (2012). A servo motor (2011) for driving the driving screw (2012) to rotate is fixed at one end of one side of the base plate (101). A U-shaped fixing frame (2013) placed outside the inner and outer positioning clamping grinding mechanism (3) is fixed together on the top of the internal thread sleeve block (2015) and the sleeve block (2016).

5. A drilling machine for processing zinc-magnesium-aluminum square tubes according to claim 4, characterized in that: The drilling assembly (202) includes multiple electric push rods (2021) fixedly located on the top of the U-shaped fixing frame (2013). The multiple electric push rods (2021) are arranged in pairs. The output ends of the bottom of two electric push rods (2021) slide through the U-shaped fixing frame (2013) and are fixedly installed with fixing plates (2023). Both sides of the fixing plates (2023) are fixed with guide limit rods (2022) that slide through the top of the U-shaped fixing frame (2013) and are placed on both sides of the electric push rods (2021). The bottom of the fixing plates (2023) is fixed with a servo motor (2024). The output end of the bottom of the servo motor (2024) is fixedly installed with a drill bit (2025).

6. A drilling machine for processing zinc-magnesium-aluminum square tubes according to claim 2, characterized in that: The support limiting assembly (4) includes multiple slide rails (401) fixed to the other side of the top of the base plate (101). Both ends of the slide rails (401) are slidably connected to limiting clamps (404). The two limiting clamps (404) cooperate with each other. The ends of the two limiting clamps (404) that are close to each other away from the mounting rod (3013) are fixed with internal thread fixing blocks (403). The internal threads of the two internal thread fixing blocks (403) are penetrated by bolts (402).

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