Automatic drilling device for aluminum product flange
Through the combination of the all-round enclosed clamping system and the ball guide frame, the problems of drill bit deflection and insufficient clamping force during the drilling process of aluminum flange are solved, and high-precision and stable drilling effect are achieved.
Patent Information
- Application Number
- CN202510634773.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-16
- Publication Date
- 2025-07-11
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
In the prior art, aluminum flanges lack auxiliary guidance and clamping force to the drill bit during drilling, resulting in poor perpendicularity and accuracy of the drilling holes, and the flange is prone to plastic deformation and displacement.
A full-circuit clamping system is adopted, including co-cliding of inner support plate, pressing clamping plate and support clamping plate, combined with insert rod, extrusion cone and ball guide frame to ensure the stability of the flange during drilling and the perpendicularity of the drill bit.
Multi-point and multi-direction stable clamping of the flange is achieved, which avoids deformation and displacement, ensures the perpendicularity and accuracy of the drilling holes, and improves the drilling quality.
Smart Images
Figure CN120286746A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of drilling devices, and more specifically, it relates to an automatic drilling device for aluminum product flanges. Background Art
[0002] An aluminum flange is a connecting piece made of aluminum alloy material, usually used in pipeline systems to achieve connection, sealing and support between pipe fittings. Due to the good corrosion resistance of aluminum, lower density (compared with other metals such as steel), as well as good thermal conductivity and workability, aluminum flanges are widely used in industries such as aviation, automotive, chemical, food processing and other industries that require lightweight and corrosion resistance performance.
[0003] The current processing technology of aluminum flanges generally includes: material selection, blanking, forming, machining, heat treatment, surface treatment and inspection. Among them, in the machining process, after the aluminum material is formed into the basic shape of the flange, a drill press is required to drill holes (mounting holes) in the flange in order to connect the flange with other pipe fittings or equipment. Specifically: after fixing the flange through a chuck fixture, control the cylinder or screw rod to vertically feed the drill bit (single or several synchronously) to move downward for drilling. However, this drilling method still has certain defects when processing aluminum flanges:
[0004] First of all, since the hardness and strength of aluminum alloy are usually lower than that of steel, it is easy to have plastic deformation during drilling. And the drill bit only vertically feeds through the cylinder or screw rod, lacking auxiliary guidance for the drill bit, which may cause the drill bit to deflect due to the drilling reaction force during the downward drilling process. Especially during multi-axis drilling, it is difficult to ensure the synchronism of multiple drill bits, which directly affects the perpendicularity and accuracy of drilling, resulting in inconsistent hole diameters or position deviations.
[0005] Secondly, currently the chuck fixture usually only clamps from the outer side of the flange. For aluminum flanges, due to their relatively soft material, it is easy to have plastic deformation during the clamping process. This single-direction clamping force is unevenly distributed, which is easy to cause excessive local stress on the flange, thereby causing deformation. At the same time, the clamping force provided by the chuck fixture may not be sufficient to prevent the flange from shifting or deforming during the drilling process. Summary of the Invention
[0006] The present invention provides an automatic drilling device for aluminum product flanges, which solves the technical problems of lacking auxiliary guidance for the drill bit and insufficient clamping force for the flange in the prior art.
[0007] The present invention provides an automatic drilling device for aluminum product flanges, which includes a machine body and a gantry fixedly installed on the top of the machine body. A blanking groove is formed on the top of the machine body, and a supporting side clamping mechanism for supporting the flange is arranged in the blanking groove. A flange is provided with a flange at the top. The supporting side clamping mechanism includes a side clamping component and a control component for controlling the side clamping component. A cylinder 1 is fixedly installed on the top of the gantry, and the output end of the cylinder 1 slidably penetrates through the gantry and is fixedly installed with a driving plate. The bottom of the driving plate is fixedly installed with a lifting plate through a strong spring.
[0008] The bottom of the lifting plate is provided with an L-shaped clamping mechanism and an inner supporting and inserting locking mechanism. The L-shaped clamping mechanism includes a pressing and clamping component and a pressure control component for controlling the pressing and clamping component. The inner supporting and inserting locking mechanism includes an inner supporting component, an extrusion component for extruding the inner supporting component, and a pressure locking component for locking the pressing and clamping component and the inner supporting component. Four of the pressing and clamping component, the pressure control component, the inner supporting component, and the pressure locking component are arranged in a square distribution.
[0009] The pressing and clamping component includes two symmetrically arranged return springs 2 fixedly installed at the bottom of the lifting plate. The bottom ends of the return springs 2 are fixedly installed with sliding rails. The inner wall of one side of the sliding rail away from the center of the lifting plate is fixedly installed with a slider 1 through a return spring 3. The bottoms of the two sliders 1 are jointly installed with a pressing and clamping plate.
[0010] Further, the side clamping component includes four support rods fixedly installed on the inner wall of the blanking groove and distributed in a square. A fixed disk is jointly installed among the four support rods. Four chutes distributed in a square are formed on the fixed disk. A U-shaped rod is slidably connected in the chute. The top end of the U-shaped rod is fixedly installed with a supporting and clamping plate, and the supporting and clamping plate is used for supporting and clamping the flange.
[0011] Further, the inner supporting component includes an installation groove formed at the bottom of the lifting plate and two return springs 4 fixedly installed on one side of the installation groove away from the pressing and clamping plate. The two return springs 4 are jointly installed with a slider 2 at one end close to the pressing and clamping plate. The bottom of the slider 2 is fixedly installed with an inner supporting plate. One side of the inner supporting plate close to the pressing and clamping plate is fixedly installed with an inserting block 1 and an inserting block 2. A slot 1 matching with the inserting block 1 is formed on one side of the pressing and clamping plate close to the inserting block 1. A slot 2 matching with the inserting block 2 is formed on one side of the supporting and clamping plate close to the inserting block 2.
[0012] Further, the pressure locking component includes an inserting rod 1 and an inserting rod 2 fixedly installed at the bottom of the lifting plate. A slot 3 matching with the inserting rod 1 is formed on the top of the pressing and clamping plate. A slot 4 matching with the inserting rod 2 is formed on the top of the supporting and clamping plate.
[0013] Further, the control component includes a control disk rotatably installed at the bottom of the fixed disk. A control groove is formed at the bottom of the control disk. The bottom of the U-shaped rod is fixedly installed with a control rod slidably connected with the control groove.
[0014] Further, the voltage-controlled component includes two downward pressure rods fixedly installed at the bottom of the lifting plate and symmetrically arranged. On one side of the pressing clamping plate close to the third return spring, two symmetrically arranged triangular rods are fixedly installed, and the downward pressure rods are used to squeeze the inclined surfaces of the triangular rods.
[0015] Further, the extrusion component includes an extrusion cone fixedly installed at the bottom of the driving plate. On one side of the inner support plate close to the extrusion cone, a pressure-receiving plate matching with the extrusion cone is fixedly installed. The pressure-receiving plate is composed of a wedge-shaped part and a vertical part. A supporting ring is fixedly installed on the outer side of the extrusion cone. When the output end of the first cylinder 3 is in a contracted state, the supporting ring abuts against the bottom of the lifting plate.
[0016] Further, a multi-axis drilling mechanism is arranged at the top of the lifting plate. The multi-axis drilling mechanism includes a drilling component and a driving component for driving the drilling component. The driving component includes an L-shaped frame fixedly installed at the top of the lifting plate and a second cylinder fixedly installed at the top of the L-shaped frame. The output end of the second cylinder slidably penetrates through the L-shaped frame and is fixedly installed with a mounting plate. A driving motor is fixedly installed on the mounting plate through a mounting sleeve.
[0017] Further, the drilling component includes a connecting ring and four drill bits rotatably installed at the bottom of the connecting ring and distributed in a circumferential manner. The top end of one of the drill bits is fixedly connected to the output shaft of the driving motor, and the top ends of the remaining three drill bits are rotatably connected to the mounting plate. The four drill bits are connected by a belt drive. Four square-distributed mounting cavities are formed at the bottom of the lifting plate. A ball guiding frame is fixedly installed on the top inner wall of the mounting cavity through a first return spring. The ball guiding frame is in an inverted cone shape, and several balls are rotatably installed on the inner wall of the ball guiding frame. The bottom end of the drill bit passes through the ball guiding frame, and the drill bit abuts against the balls during drilling.
[0018] Further, the pressing and clamping component further includes a limiting rod fixedly installed at the top of the slide rail. The top end of the limiting rod slidably penetrates through the lifting plate. A second return spring is sleeved on the outer side of the limiting rod. A limiting plate is jointly installed at the top ends of the two limiting rods.
[0019] The beneficial effects of the present invention are as follows:
[0020] 1. In this application, through the coordinated action of the inner support plate, the pressing clamping plate and the supporting clamping plate, the flange is clamped and supported at multiple points and in multiple directions, forming an all-round surrounding fixing system, ensuring that the flange remains absolutely stable during the drilling process, avoiding deformation or displacement caused by insufficient clamping force, and the all-round surrounding fixing system evenly distributes the clamping force on the entire flange, avoiding excessive local pressure causing deformation of the flange.
[0021] 2. In the present application, the pressure plate, the support plate and the inner support plate are locked and limited in all directions in the vertical and horizontal directions through the cooperation of the insertion rod one, the insertion rod two, the extrusion cone, the insertion rod three and the insertion rod four, so that an integral surrounding clamping structure that is interconnected and locked with each other is formed among the pressure plate, the support plate and the inner support plate, which greatly improves the clamping stability of the flange and further avoids the loosening of the flange during the drilling process.
[0022] 3. In the present application, the drill bit is guided and limited in the vertical direction under the action of the ball guide frame to ensure that the drill bit can move down and drill holes in a state perpendicular to the flange, thereby avoiding the problem of inconsistent hole diameter or position deviation caused by drill bit deflection.
[0023] 4. In the present application, during the entire drilling process, the flange is fixed in an all-round surrounding manner, and the drill bit is doubly vertically guided by the lifting plate and the ball guide frame, so that the drill bit can drill completely perpendicular to the flange, and the flange will not shift when subjected to force, which greatly improves the drilling stability and drilling quality of the aluminum flange and avoids poor processing due to verticality and stability deviations between the drill bit and the flange.
[0024] 5. In the present application, during the resetting process of the clamping plate, the processing waste chips that fall on the top of the flange when the drill bit is pulled out will be pushed into the drop chute, thereby achieving the effect of automatic waste removal. BRIEF DESCRIPTION OF THE DRAWINGS
[0025] Figure 1 It is a three-dimensional structural schematic diagram of the present invention.
[0026] Figure 2 It is a partial three-dimensional structural schematic diagram of the supporting side clamping mechanism, L-shaped clamping mechanism, inner support locking mechanism and multi-axis drilling mechanism of the present invention.
[0027] Figure 3 It is a schematic diagram of the three-dimensional structure of the limit rod, the strong spring, the slide rail, the slide block and the triangular rod part of the present invention.
[0028] Figure 4 It is a schematic diagram of the three-dimensional structure of the flange, the fixing plate, the control plate, the U-shaped rod and the clamping plate of the present invention.
[0029] Figure 5 It is a schematic diagram of the three-dimensional structure of the support rod, the fixing plate, the control plate, the U-shaped rod and the clamping plate of the present invention.
[0030] Figure 6 The present invention Figure 5 A partial enlarged view of part B.
[0031] Figure 7 It is an exploded view of the three-dimensional structure of the lifting plate, the lower pressure rod, the triangular rod, the supporting plate, the slide rail and the inner support plate of the present invention.
[0032] Figure 8 It is a schematic perspective view of the lifting plate, strong spring, driving plate, extrusion cone and supporting ring parts of the present invention.
[0033] Figure 9 It is the present invention Figure 8 A partial enlarged view of part A in the present invention.
[0034] Figure 10 It is a schematic perspective view of the L-shaped frame, cylinder two, driving motor and drill bit parts of the present invention.
[0035] In the figure: 1, machine body; 2, gantry; 3, cylinder one; 4, supporting side clamping mechanism; 5, L-shaped clamping mechanism; 6, inner support plug lock mechanism; 7, multi-axis drilling mechanism; 8, driving plate; 9, strong spring; 10, lifting plate; 11, flange; 12, blanking chute; 401, side clamping assembly; 402, control assembly; 4011, support rod; 4012, fixed disk; 4013, chute; 4014, U-shaped rod; 4015, supporting clamping plate; 4021, control disk; 4022, control groove; 4023, control rod; 501, pressing and clamping assembly; 502, pressure control assembly; 5011, return spring two; 5012, slide rail; 5013, return spring three; 5014, slider one; 5015, pressing and clamping plate; 5016, limiting rod; 5017, limiting plate; 5021, downward pressing rod; 5022, triangular rod; 601, inner support assembly; 602, extrusion assembly; 603, pressure lock assembly; 6011, installation groove; 6012, return spring four; 6013, slider two; 6014, inner support plate; 6015, plug one; 6016, slot one; 6017, plug two; 6018, slot two; 6021, extrusion cone; 6022, pressure receiving plate; 6023, supporting ring; 6031, plug rod one; 6032, slot three; 6033, plug rod two; 6034, slot four; 701, drilling assembly; 702, driving assembly; 7011, connecting ring; 7012, drill bit; 7013, installation cavity; 7014, return spring one; 7015, ball guide frame; 7021, L-shaped frame; 7022, cylinder two; 7023, installation plate; 7024, driving motor. Detailed implementation manners
[0036] Now, the subject matter described herein will be discussed with reference to example embodiments. It should be understood that these embodiments are discussed so that those skilled in the art can better understand and thus implement the subject matter described herein. The functions and arrangements of the elements discussed can be changed without departing from the scope of protection of the content of this specification. Each example can omit, substitute or add various processes or components as needed. Additionally, the features described relative to some examples can also be combined in other examples.
[0037] Refer toFigure 1 , Figure 2 , Figure 4 and Figure 8 In this embodiment, an automatic drilling device for aluminum flange is proposed, including a machine body 1 and a gantry 2 fixedly installed on the top of the machine body 1. A blanking trough 12 is provided on the top of the machine body 1. A supporting side clamping mechanism 4 for supporting the flange 11 is arranged in the blanking trough 12. The supporting side clamping mechanism 4 includes a side clamping component 401 and a control component 402 for controlling the side clamping component 401. A cylinder 3 is fixedly installed on the top of the gantry 2. The output end of the cylinder 3 slides through the gantry 2 and is fixedly installed with a driving plate 8. The bottom of the driving plate 8 is fixedly installed with a lifting plate 1 through a strong spring 9. 0, a multi-axis drilling mechanism 7 is arranged on the top of the lifting plate 10, and an L-shaped clamping mechanism 5 and an inner support locking mechanism 6 are arranged on the bottom of the lifting plate 10. The L-shaped clamping mechanism 5 includes a clamping assembly 501 and a pressure control assembly 502 for controlling the clamping assembly 501, and the inner support locking mechanism 6 includes an inner support assembly 601, an extrusion assembly 602 for extruding the inner support assembly 601, and a pressure locking assembly 603 for locking the clamping assembly 501 and the inner support assembly 601. The clamping assembly 501, the pressure control assembly 502, the inner support assembly 601 and the pressure locking assembly 603 are all provided with four square distributions.
[0038] It should be noted that a flange is provided on the top of the flange 11, and the main function of the flange is to increase the contact area and tightness of the sealing surface, thereby improving the sealing performance of the connection, while facilitating the alignment connection between the two flanges 11 and improving the connection strength.
[0039] See also Figure 2 , Figure 4 , Figure 5 and Figure 6 The side clamp assembly 401 includes four support rods 4011 fixedly installed on the inner wall of the blanking trough 12 and distributed in a square shape, a fixed plate 4012 is installed between the four support rods 4011, and four square-distributed slide grooves 4013 are opened on the fixed plate 4012. A U-shaped rod 4014 is slidably connected in the slide groove 4013, and a supporting clamp plate 4015 is fixedly installed on the top of the U-shaped rod 4014. The supporting clamp plate 4015 is used to support and clamp the flange 11. The fixed plate 4012 is in a conical shape with a small top diameter and a large bottom diameter.
[0040] See also Figure 4 , Figure 5 and Figure 6 The control assembly 402 includes a control disk 4021 rotatably mounted at the bottom of the fixed disk 4012 , a control slot 4022 is provided at the bottom of the control disk 4021 , and a control rod 4023 slidably connected to the control slot 4022 is fixedly mounted at the bottom of the U-shaped rod 4014 .
[0041] During specific use, first place the flange 11 to be processed on the top of the four supporting plates 4015. Then, control the control panel 4021 to rotate through an external power source, so as to drive the control rod 4023 to move along the sliding groove 4013 towards the center side of the fixed plate 4012 through the control groove 4022. Further, drive the supporting plate 4015 to move synchronously through the U-shaped rod 4014, so that the four supporting plates 4015 approach synchronously, externally clamp the flange 11 placed on the top of the supporting plate 4015, thereby initially clamping and fixing the flange 11 to ensure that it will not be displaced during the subsequent processing, providing a basis for the cooperation of the subsequent pressing and clamping assembly 501 and the internal support assembly 601.
[0042] Refer to Figure 2 、 Figure 3 、 Figure 7 、 Figure 8 and Figure 9 As shown in FIGS.
[0043] Refer to Figure 3 、 Figure 7 、 Figure 8 and Figure 9 The pressing control assembly 502 includes two downward pressing rods 5021 fixedly installed at the bottom of the lifting plate 10 and symmetrically arranged. On the side of the pressing plate 5015 close to the return spring three 5013, two symmetrically arranged triangular rods 5022 are fixedly installed. The downward pressing rods 5021 are used to squeeze the inclined surfaces of the triangular rods 5022.
[0044] During specific use, after the outer clamping and fixing flange 11 is fixed, the first cylinder 3 is started. The output end of the first cylinder 3 pushes the driving plate 8 downward, thereby driving the lifting plate 10 to move synchronously through the strong spring 9 until the pressing plate 5015 contacts the top of the flange 11. Then, the driving plate 8 continues to move downward. Since the pressing plate 5015 cannot continue to move, the driving plate 8 drives the lifting plate 10 to start squeezing the second reset spring 5011 through the strong spring 9 (in this process, the strong spring 9 will also be slightly compressed, but due to the strong stiffness of the strong spring 9, the compression amplitude in this process is much smaller than that of the second reset spring 5011), driving the lower pressing rod 5021 to squeeze the inclined surface of the triangular rod 5022, driving the triangular rod 5022 to push the pressing plate 5015 to move towards the flange 11 top flange side. During the movement, the pressing plate 5015 drives the first slider 5014 to slide in the slide rail 5012 and stretch the third reset spring 5013. The slide rail 5012 can guide the pressing plate 5015 in the horizontal direction, and then clamp the outer side of the flange, and at the same time cover the top surface of the flange, thereby realizing the fixation of the flange. At this time, the supporting plate 4015 clamps and fixes both sides of the flange 11 (i.e., the bottom surface and the outer side), and the pressing plate 5015 clamps both sides of the flange (the outer side and the top surface), forming a multi-directional fixation of the flange 11 (vertical direction and horizontal direction), greatly increasing the clamping force, ensuring that the flange 11 remains highly stable during the drilling process, preventing small displacements or rotations, and providing a more uniform pressure distribution to avoid deformation of the flange 11 caused by excessive local pressure.
[0045] Refer to Figure 2 , Figure 3 , Figure 4 , Figure 7 , Figure 8 and Figure 9 , the inner support assembly 601 includes an installation groove 6011 opened at the bottom of the lifting plate 10 and two fourth reset springs 6012 fixedly installed on the side of the installation groove 6011 away from the pressing plate 5015. A second slider 6013 is jointly installed at one end of the two fourth reset springs 6012 close to the pressing plate 5015. An inner support plate 6014 is fixedly installed at the bottom of the second slider 6013. A first insert block 6015 and a second insert block 6017 are fixedly installed on the side of the inner support plate 6014 close to the pressing plate 5015. A first slot 6016 matching the first insert block 6015 is opened on the side of the pressing plate 5015 close to the first insert block 6015. A second slot 6018 matching the second insert block 6017 is opened on the side of the supporting plate 4015 close to the second insert block 6017.
[0046] Refer to Figure 7 , Figure 8 and Figure 9, the extrusion assembly 602 includes an extrusion cone 6021 fixedly installed at the bottom of the driving plate 8, and a pressure receiving plate 6022 that is fixedly installed on one side of the inner support plate 6014 close to the extrusion cone 6021 and is matched with the extrusion cone 6021. The pressure receiving plate 6022 is composed of a wedge-shaped part and a vertical part. A support ring 6023 is fixedly installed on the outer side of the extrusion cone 6021. When the output end of the first cylinder 3 is in a contracted state, the support ring 6023 abuts against the bottom of the lifting plate 10.
[0047] Refer to Figure 4 , Figure 7 , Figure 8 and Figure 9 , the pressure locking assembly 603 includes a first inserting rod 6031 and a second inserting rod 6033 fixedly installed at the bottom of the lifting plate 10. A third inserting slot 6032 that is matched with the first inserting rod 6031 is opened at the top of the pressure clamping plate 5015, and a fourth inserting slot 6034 that is matched with the second inserting rod 6033 is opened at the top of the supporting clamping plate 4015.
[0048] During specific use, when the flange is fixed, the first inserting rod 6031 is inserted into the third inserting slot 6032, and the second inserting rod 6033 is inserted into the fourth inserting slot 6034 at this time to support the lifting plate 10 (preventing the second return spring 5011 from being continuously compressed, and at the same time providing a supporting force for the subsequent continuous compression of the strong spring 9). At the same time, horizontal locking and limiting of the supporting clamping plate 4015 and the pressure clamping plate 5015 are performed to prevent the supporting clamping plate 4015 and the pressure clamping plate 5015 from loosening and causing insufficient clamping. Moreover, when the first inserting rod 6031 is inserted into the second inserting slot 6018, it can also press down the top surface of the pressure clamping plate 5015 to further press down the flange, and press the flange 11 more tightly against the supporting clamping plate 4015. Then, when the output end of the first cylinder 3 continues to push the driving plate 8 downward, it can no longer drive the lifting plate 10 to move, but will continue to compress the strong spring 9. When the driving plate 8 continues to move downward, it will drive the extrusion cone 6021 to continue to move downward and then contact and press the wedge-shaped part of the pressure receiving plate 6022, driving the pressure receiving plate 6022 to move toward the side close to the inner wall of the flange 11, thereby driving the inner support plate 6014 to move synchronously. During this process, the second slider 6013 slides along the installation groove 6011 and stretches the fourth return spring 6012. Finally, the four inner support plates 6014 expand outward synchronously to provide internal support for the inner wall of the flange 11. At the same time, the first inserting block 6015 on the inner support plate 6014 is inserted into the first inserting slot 6016, and the second inserting block 6017 is inserted into the second inserting slot 6018 to perform vertical locking and limiting on the pressure clamping plate 5015 and the supporting clamping plate 4015. Thus, the all-round locking and fixing of the pressure clamping plate 5015 and the supporting clamping plate 4015 are completed, and at the same time, an internal supporting force is provided for the inner wall of the flange 11 to achieve all-round surrounding clamping and fixing of the flange 11.
[0049] Refer to Figure 2 , Figure 7 andFigure 10 The multi-axis drilling mechanism 7 includes a drilling component 701 and a driving component 702 for driving the drilling component 701. The driving component 702 includes an L-shaped frame 7021 fixedly installed on the top of the lifting plate 10 and a second cylinder 7022 fixedly installed on the top of the L-shaped frame 7021. The output end of the second cylinder 7022 slidably penetrates through the L-shaped frame 7021 and is fixedly installed with a mounting plate 7023. A driving motor 7024 is fixedly installed on the mounting plate 7023 through a mounting sleeve.
[0050] Refer to Figure 2 、 Figure 7 、 Figure 8 、 Figure 9 and Figure 10 The drilling component 701 includes a connecting ring 7011 and four drill bits 7012 rotatably installed at the bottom of the connecting ring 7011 and distributed circumferentially. The top end of one of the drill bits 7012 is fixedly connected to the output shaft of the driving motor 7024, and the top ends of the remaining three drill bits 7012 are rotatably connected to the mounting plate 7023. The four drill bits 7012 are connected by a belt drive. A tapered surface is provided on the outer side of the drill bit. Four mounting cavities 7013 are provided at the bottom of the lifting plate 10 in a square distribution. A ball guide frame 7015 is fixedly installed on the top inner wall of the mounting cavity 7013 through a first return spring 7014. The ball guide frame 7015 is in an inverted cone shape, and a number of balls are rotatably installed on the inner wall of the ball guide frame 7015. The bottom end of the drill bit 7012 passes through the ball guide frame 7015, and the tapered surface of the drill bit 7012 abuts against the balls during drilling.
[0051] It should be noted that during the drilling process, due to the adhesiveness and softness of aluminum, high-speed steel (HSS) or carbide-coated drill bits should be used to reduce the friction and adhesion between the drill bit 7012 and the flange 11. In addition, coated drill bits (such as TiN, TiAlN, etc.) can further enhance wear resistance and anti-adhesion.
[0052] Since the hardness of aluminum is relatively low, a relatively high rotational speed (about 800 - 3000 revolutions per minute) is required during drilling, but the feed rate should be moderate (about 0.1 - 0.3 mm / rev). An excessively fast feed rate may cause material extrusion and deformation, while an excessively slow feed rate will affect the processing efficiency. The specific parameters can be adjusted according to the specific aperture size of the aluminum alloy.
[0053] In specific use, after completing the all-round surrounding clamping and fixing of the flange 11, the driving motor 7024 is started, and the output shaft of the driving motor 7024 drives the drill bit 7012 connected thereto to rotate at a high speed. At the same time, the output shaft of the driving motor 7024 drives the other three to rotate synchronously through a belt drive. Then, the cylinder 2 7022 is started, and the output end of the cylinder 2 7022 pushes the mounting plate 7023 to move downward, thereby driving the four drill bits 7012 to move downward synchronously. As the drill bit 7012 moves downward, after its conical surface contacts the ball in the ball guide frame 7015, the drill bit 7012 continues to move downward, which will drive the ball guide frame 7015 and stretch the reset spring 1 7014. When the drill bit 7012 starts to drive the ball guide frame 7015 to move downward, the drill bit 7012 starts to contact the flange 11 and moves with the drill bit 70 12 is moved down to drill the flange 11, and under the action of the ball guide frame 7015 (the installation cavity 7013 guides and limits the ball guide frame 7015), the drill bit 7012 is guided and limited in the vertical direction to ensure that the drill bit 7012 can move down to drill in a state perpendicular to the flange 11, avoiding the problem of inconsistent hole diameter or position deviation caused by the deviation of the drill bit 7012, and during the entire drilling process, the flange 11 is fixed in an all-round surrounding manner, and the drill bit 7012 is vertically guided by the lifting plate 10 and the ball guide frame 7015. The drill bit 7012 can drill completely perpendicular to the flange 11, and the flange 11 will not deviate when subjected to force, which greatly improves the drilling stability and drilling quality of the aluminum flange 11 and avoids poor processing due to the verticality and stability deviation between the drill bit 7012 and the flange 11.
[0054] After the drilling is completed, the output end of the second cylinder 7022 is controlled to contract, driving the drill bit 7012 to be pulled out of the drill hole. When pulling out, some waste chips will fall on the top of the flange 11. The output end of the control cylinder 13 is controlled to contract, driving the drive plate 8 to move up. In this process, the strong spring 9 is first reset, and the extrusion cone 6021 moves up and separates from the pressure plate 6022, so that the reset spring four 6012 drives the inner support plate 6014 to reset. When the strong spring 9 is completely reset, the drive plate 8 continues to move up and drives the lifting plate 10 to move up. At the same time, the reset spring two 5011 is gradually reset, the lower pressure rod 5021 is separated from the triangular rod 5022, and the reset spring three 50 13 drives the clamping plate 5015 to move to the side away from the flange and reset. During the resetting process of the clamping plate 5015, the processing waste chips that fall on the top of the flange 11 when the drill bit 7012 is pulled out will be pushed into the drop groove 12, thereby achieving the effect of automatic waste removal. When the reset spring 5011 is completely reset, the driving plate 8 continues to move upward and drives the clamping plate 5015 and the inner support plate 6014 to move upward and reset through the lifting plate 10 to wait for the next processing. Finally, the control disk 4021 is driven to rotate by an external power supply, driving the U-shaped rod 4014 to drive the supporting plate 4015 to separate and release the clamping of the flange 11, so that the processed flange 11 can be taken out.
[0055] Finally, it should be noted that: Obviously, the above embodiments are merely examples for clearly illustrating the present invention, rather than limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to enumerate all the implementation manners here. And the obvious changes or modifications derived therefrom still fall within the protection scope of the present invention.
Claims
1. An automatic drilling device for aluminum product flanges, characterized in that, It includes: a machine body and a gantry fixedly installed on the top of the machine body. A blanking chute is provided on the top of the machine body. A supporting side clamping mechanism for supporting the flange is arranged in the blanking chute. A flange is provided with a flange at the top. The supporting side clamping mechanism includes a side clamping component and a control component for controlling the side clamping component. A cylinder 1 is fixedly installed on the top of the gantry. The output end of the cylinder 1 slidably penetrates through the gantry and is fixedly installed with a driving plate. The bottom of the driving plate is fixedly installed with a lifting plate through a strong spring. The bottom of the lifting plate is provided with an L-shaped clamping mechanism and an inner support and locking mechanism. The L-shaped clamping mechanism includes a pressing and clamping component and a pressure control component for controlling the pressing and clamping component. The inner support and locking mechanism includes an inner support component, an extrusion component for extruding the inner support component, and a pressure locking component for locking the pressing and clamping component and the inner support component. Four of the pressing and clamping component, the pressure control component, the inner support component, and the pressure locking component are arranged in a square distribution. The pressing and clamping component includes two symmetrically arranged return springs 2 fixedly installed at the bottom of the lifting plate. The bottom end of the return spring 2 is fixedly installed with a slide rail. The inner wall of the slide rail on the side away from the center of the lifting plate is fixedly installed with a slider 1 through a return spring 3. The bottoms of the two sliders 1 are jointly installed with a pressing plate.
2. The automated drilling device for aluminum product flanges according to claim 1, characterized in that, The side clamping component includes four support rods fixedly installed on the inner wall of the blanking chute and arranged in a square distribution. A fixed disk is jointly installed among the four support rods. Four chutes are provided on the fixed disk in a square distribution. A U-shaped rod is slidably connected in the chute. The top end of the U-shaped rod is fixedly installed with a supporting plate for supporting and clamping the flange.
3. The automatic drilling device for an aluminum product flange according to claim 2, characterized in that, The inner support component includes an installation groove opened at the bottom of the lifting plate and two return springs 4 fixedly installed on the side of the installation groove away from the pressing plate. The two return springs 4 are jointly installed with a slider 2 at the end close to the pressing plate. The bottom of the slider 2 is fixedly installed with an inner support plate. The side of the inner support plate close to the pressing plate is fixedly installed with a plug 1 and a plug 2. A slot 1 matching the plug 1 is opened on the side of the pressing plate close to the plug 1. A slot 2 matching the plug 2 is opened on the side of the supporting plate close to the plug 2.
4. An automatic drilling device for aluminum product flanges according to claim 3, characterized in that, The pressure locking component includes a plug rod 1 and a plug rod 2 fixedly installed at the bottom of the lifting plate. A slot 3 matching the plug rod 1 is opened on the top of the pressing plate. A slot 4 matching the plug rod 2 is opened on the top of the supporting plate.
5. The automatic drilling device for aluminum product flange according to claim 2, characterized in that The control component includes a control disk rotatably installed at the bottom of the fixed disk. A control groove is opened at the bottom of the control disk. The bottom of the U-shaped rod is fixedly installed with a control rod slidably connected with the control groove.
6. The automated drilling device for aluminum product flanges according to claim 1, wherein The pressure control component includes two symmetrically arranged downward pressing rods fixedly installed at the bottom of the lifting plate. Two symmetrically arranged triangular rods are fixedly installed on the side of the pressing plate close to the return spring 3. The downward pressing rods are used for extruding the inclined surfaces of the triangular rods.
7. An automatic drilling device for aluminum product flanges according to claim 3, characterized in that, The extrusion component includes an extrusion cone fixedly installed at the bottom of the driving plate. A pressure receiving plate matching the extrusion cone is fixedly installed on the side of the inner support plate close to the extrusion cone. The pressure receiving plate is composed of a wedge-shaped part and a vertical part. A supporting ring is fixedly installed on the outer side of the extrusion cone. When the output end of the cylinder 1 is in a contracted state, the supporting ring abuts against the bottom of the lifting plate.
8. An automatic drilling device for an aluminum product flange according to claim 1, characterized in that, A multi-axis drilling mechanism is provided at the top of the lifting plate. The multi-axis drilling mechanism includes a drilling component and a driving component for driving the drilling component. The driving component includes an L-shaped frame fixedly installed at the top of the lifting plate and a second cylinder fixedly installed at the top of the L-shaped frame. The output end of the second cylinder slidably penetrates through the L-shaped frame and is fixedly installed with a mounting plate. A driving motor is fixedly installed on the mounting plate through a mounting sleeve.
9. The automatic drilling device for aluminum product flange according to claim 8, characterized in that, The drilling component includes a connecting ring and four drill bits rotatably installed at the bottom of the connecting ring and distributed in a circumferential manner. The top end of one of the drill bits is fixedly connected to the output shaft of the driving motor, and the top ends of the remaining three drill bits are rotatably connected to the mounting plate. The four drill bits are connected by a belt drive. Four mounting cavities are provided at the bottom of the lifting plate in a square distribution. A ball guide frame is fixedly installed on the top inner wall of the mounting cavity through a first return spring. The ball guide frame is in an inverted cone shape, and several balls are rotatably installed on the inner wall of the ball guide frame. The bottom end of the drill bit passes through the ball guide frame, and the drill bit abuts against the balls during drilling.
10. An automated drilling device for aluminum product flanges according to claim 1, characterized in that, The clamping component further includes a limiting rod fixedly installed at the top of the slide rail. The top end of the limiting rod slidably penetrates through the lifting plate. A second return spring is sleeved on the outer side of the limiting rod. A limiting plate is commonly installed at the top ends of the two limiting rods.