Clamping device and clamping method for numerical control machining of complex free-form surface part

Abstract

The invention belongs to the technical field of numerical control machining of parts, particularly relates to a clamping device for clamping for numerical control machining of a complex free-form surface part and a clamping method, and aims at solving the problem that a fixing device is difficult to effectively fix and support the complex free-form surface part. Two supporting seats are fixedly connected to the top of the machining base, and a machining supporting and fixing module is arranged at the tops of the two supporting seats and comprises two fixing seats. The clamping device for numerical control machining of the complex free-form surface part and the clamping method have the effect of improving the machining quality, and during machining, the device can conduct auxiliary supporting on the complex free-form surface part, so that the supporting strength of the complex free-form surface part is improved during machining, and the machining quality of the complex free-form surface part is improved. And deformation of the complex free-form surface part caused by misoperation during use is avoided, so that the machining quality is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of parts numerical control machining, and in particular to a clamping device and a clamping method for numerical control machining of parts with complex free-form surfaces. Background Art

[0002] Tunnel boring machines, automobiles, etc. have complex free-form surface parts, such as the drill bit of a tunnel boring machine and the complex free-form surface parts of a car turbocharger.

[0003] The tunnel boring machine is a new, advanced and high-end tunnel construction equipment that uses a high-speed rotating drill bit to dig, crush the surrounding rock in the hole and excavate, forming the entire tunnel section. Improving the processing accuracy of the drill bit can not only extend the service life of the drill bit, but also improve the quality, penetration rate and straightness of tunnel construction, saving tunnel construction costs. The automobile turbocharger is an air compressor that drives the exhaust gas energy discharged by the engine through complex free-form surface parts, compresses the air into the cylinder, increases the pressure and density of the air, makes the fuel burn more fully, and thus improves the power performance and economy of the engine. Improving processing accuracy, extending the service life of parts, and ensuring automobile engine performance and driving safety are of great significance.

[0004] Complex free-form surface parts usually have multiple surfaces and complex geometric structures. Traditional processing methods often require multiple processes, with low processing efficiency and prone to precision deviation. However, CNC processing technology can achieve precise processing of parts through computer programming and precise CNC machine tool operation, greatly improving processing efficiency and processing accuracy.

[0005] However, when the existing complex free-form surface parts are clamped and fixed during CNC machining, the clamping device cannot effectively fix and support the parts, and because the strength of the parts is lower than that of other parts, during CNC machining operations, not only will the errors involved in the part clamping process eventually accumulate on the processed parts, but the parts are also easily deformed due to errors, which directly affects the machining accuracy, efficiency and cost of the complex free-form surface parts, and may even make the parts unusable. Summary of the invention

[0006] The present invention discloses a clamping device and a clamping method for CNC machining of complex free-form surface parts, aiming to solve the problem that the clamping device is difficult to effectively fix and support the parts during CNC machining clamping and fixing of the existing complex free-form surface parts in the background technology, and because the strength of the parts is lower than that of other parts, during CNC machining operations, not only will the errors involved in the part clamping process eventually accumulate on the machined parts, but the parts are also easily deformed due to errors, which directly affects the machining accuracy, machining efficiency and machining cost of the complex free-form surface parts, and may even make the parts unusable.

[0007] The present invention proposes a clamping device for CNC machining of complex free-form surface parts, including a machining base, the top of which is fixedly connected to two support seats, and the tops of the two support seats are provided with a machining support module, the machining support module includes two fixed seats, the two fixed seats are respectively fixedly connected to the tops of the two support seats, the top of the machining base is provided with two fixed openings, the interiors of the two fixed openings are provided with a machining cleaning module, and the machining cleaning module is located below the machining support module, one side outer wall of the machining base is fixedly connected to a fixing plate, and one side outer wall of the fixing plate is fixedly connected to two placement pedestals.

[0008] By providing a processing base, a support base, a processing support module, a fixing port, a processing cleaning module, a fixing plate and a placement pedestal, the placement pedestal is used to place the processing parts when in use; the processing support module can clamp and fix the complex free-form surface parts when processing them, and can support the complex free-form surface parts, thereby avoiding deformation of the complex free-form surface parts caused by operational errors during CNC processing, thereby ensuring the processing quality of the device when in use to meet the processing requirements; the processing cleaning module can clean the debris produced by processing in real time when in use to avoid debris accumulation, so as to facilitate the use of the device, and can collect the debris in a centralized manner when in use for subsequent processing to meet the use requirements of the device.

[0009] In a preferred embodiment, the interior of the two fixed seats is provided with an installation cavity, the interior of the two installation cavities is movably connected with a driving gear ring, the two fixed seats are movably connected with a screw rod and two guide rods, the outer walls of the two screw rods and the four guide rods are collectively provided with a driving block, a plurality of driving blocks are respectively located in the interior of the two installation cavities, the three driving blocks in the same installation cavity are meshed with the same driving gear ring, and the two fixed seats are fixedly connected with a driving motor, the output shafts of the two driving motors are respectively connected to one end of the two screw rods through a coupling; the outer walls of the two fixed seats are provided with three limiting guide grooves, the plurality of limiting guide grooves are respectively connected to the interior of the two installation cavities, and the tops of the plurality of driving blocks are The parts are movably connected with movable blocks, the outer walls of the multiple movable blocks are respectively in contact with the inner walls of the multiple limit guide grooves, the tops of the multiple movable blocks are fixedly connected with clamping plates, and the outer walls of one side of the multiple movable blocks are provided with mounting holes, the interiors of the multiple mounting holes are fixedly connected with electric push rods, the output ends of the multiple electric push rods are fixedly connected with mounting frames, and the tops of the multiple mounting frames are provided with gear openings; the inner walls on both sides of the multiple mounting frames are fixedly connected with two arc-shaped guide rods, the outer walls of the two arc-shaped guide rods on the same mounting frame are movably connected with the same movable frame, the multiple movable frames are fixedly connected with motors one, the output shafts of the multiple motors one are connected with driving gears through couplings, and the multiple driving gears The wheels are respectively meshed with multiple gear openings, and the tops of the multiple movable frames are fixedly connected to mounting plates, the inner walls of the multiple mounting plate frames on both sides are movably connected to the same shaft rod, the outer walls of the multiple shaft rods are fixedly connected to lifting rods, one ends of the multiple lifting rods are movably connected to mounting rod frames, the inner walls of the multiple mounting rod frames are fixedly connected to supporting airbags, the bottoms of the multiple mounting rod frames are fixedly connected to elastic plates, one ends of the multiple elastic plates are respectively fixedly connected to the bottoms of the multiple supporting airbags; the outer walls of one side of the multiple lifting rods are fixedly connected to supporting springs, one ends of the multiple supporting springs are respectively fixedly connected to the bottoms of the multiple elastic plates, the outer walls of one side of the multiple mounting plate frames are fixedly connected to motor two, and the multiple motors two The output shafts of the plurality of motors are connected to the winding wheel through a coupling, the plurality of winding wheels are provided with connecting cables, one ends of the plurality of connecting cables are respectively fixedly connected to the bottoms of the plurality of elastic plates, and the plurality of mounting plate frames are respectively fixedly connected to motor three and a conveying pump, the output shafts of the plurality of motors three are connected to the winding disk through a coupling, the plurality of winding disks are provided with connecting cables, one ends of the plurality of connecting cables are respectively fixedly connected to the outer walls of one side of the plurality of lifting rods, the tops of the plurality of mounting plate frames are fixedly connected to mounting members, the plurality of mounting members are provided with guide members, the plurality of connecting cables are respectively located inside the plurality of guide members, the output ends of the plurality of conveying pumps are fixedly connected to airflow pipes, and the output ends of the plurality of airflow pipes are respectively connected to the insides of the plurality of supporting airbags.

[0010] By providing a processing support module, the processing support module can stably clamp the parts when in use, thereby avoiding the loosening of the complex free-form surface parts and affecting the processing quality during use, so as to increase the use effect of the device, and when performing CNC processing, the processing support module can provide auxiliary support for the complex free-form surface parts to be processed, so as to increase the force strength of the complex free-form surface parts during processing, thereby avoiding the deformation of the complex free-form surface parts caused by the excessive downward movement of the processing equipment due to the operating errors of the staff during CNC processing, thereby improving the use effect of the device when in use.

[0011] In a preferred embodiment, the processing and cleaning module includes two collecting bins, which are respectively fixedly connected to the inner walls of the two fixed ports, and the bottoms of the two collecting bins are fixedly connected with collecting pipes, and the input ends of the two collecting pipes are fixedly connected to the same storage bin, and the outer walls of the storage bins are fixedly connected with a negative pressure pump, and the outer wall of the negative pressure pump is fixedly connected with a connecting frame, and the inner wall of the connecting frame is fixedly connected with an airflow pump, and the output end of the airflow pump is connected to two annular tubes through pipelines, and the two annular tubes are respectively located under the two support seats; the outer walls of the two annular tubes are fixedly connected with multiple cleaning tubes, and the output ends of the multiple cleaning tubes are A cleaning nozzle is fixedly connected, and multiple cleaning nozzles are respectively located above the two fixed seats, and the inner walls of the two fixed seats are fixedly connected with an upper bin ring frame, the outer wall of the upper bin ring frame and the outer wall of the collecting bin on the same side are fixedly connected with the same annular frame, the outer walls of the two annular frames are fixedly connected with gear rings, the inner walls of the two annular frames are fixedly connected with stirring plate frames, the outer walls of the two stirring plate frames are respectively in contact with the inner walls of the two collecting bins, and two power motors are fixedly connected to the top of the processing base, and the output shafts of the two power motors are connected with transmission gears through couplings, and the two transmission gears are respectively meshed with the two gear rings.

[0012] By providing a processing and cleaning module, the processing and cleaning module can clean up the debris that falls on the surface of the fixed seat during processing when in use, so that the device can collect the debris in a centralized manner, and then it is convenient for the staff to centrally process the debris in subsequent use, so as to increase the use effect and diversity of the device, and when cleaning, the processing and cleaning module can stir the debris entering the collection bin, so as to avoid the debris from clogging the conveying pipeline when the debris is collected, so as to further increase the use effect of the device.

[0013] In a preferred scheme, two stepper motors are fixedly connected to the fixed plate, and the output shafts of the two stepper motors are connected to flip arms through couplings, and the inner walls of the two flip arms are fixedly connected to annular frames, and the two annular frames are respectively located above the two placement pedestals; the tops of the two flip arms are fixedly connected to air pumps, the output ends of the two air pumps are fixedly connected to connecting pipes, the output ends of the two connecting pipes are fixedly connected to connecting warehouses, the outer walls of the two connecting warehouses are fixedly connected to two conveying pipes, the output ends of the four conveying pipes are fixedly connected to annular air bags, the outer walls of the four annular air bags are respectively fixedly connected to the inner walls of the two annular frames, and the tops of the two flip arms are opened with circular openings, and the outer walls of the two connecting warehouses are respectively fixedly connected to the inner walls of the two circular openings.

[0014] By providing a stepper motor, a flip arm, a ring frame, a ring airbag, a connecting pipe, a connecting chamber, an air pump and a connecting pipe, complex free-form surface parts can be fixed by the air pump and the ring airbag during use, so that they can be stably flipped by the flip arm during use, and the device can locate the fixed points of the complex free-form surface parts during use to avoid offset during manual placement, so as to ensure the fixing effect of the device during processing and use. At the same time, the device can move and collect the parts after processing to avoid the high temperature of the parts that have just been processed from causing harm to the staff, thereby further increasing the use effect of the device.

[0015] A clamping method for CNC machining of complex free-form surface parts, using the clamping device for CNC machining of complex free-form surface parts as described above, comprises the following steps:

[0016] Step 1: Place the complex free-form surface part on the placement pedestal, fix it with a ring airbag, and start the stepper motor to flip the flip arm, so that the complex free-form surface part moves to the top of the fixed seat;

[0017] Step 2: When the complex free-form surface part moves to the top of the fixed seat, the processing support module is started to fix the complex free-form surface part, and the complex free-form surface part to be processed is supported. After support, the CNC processing equipment is started for processing.

[0018] From the above, it can be seen that the clamping device for CNC machining of complex free-form surface parts provided by the present invention has the function of improving the machining quality. During machining, the device can provide auxiliary support for complex free-form surface parts such as complex free-form surface parts, thereby increasing the support strength of the complex free-form surface parts during machining, and then avoiding deformation of the complex free-form surface parts caused by operational errors during use, thereby ensuring the machining quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1This is a schematic diagram of the overall structure of a clamping device for CNC machining of complex free-form surface parts proposed by the present invention;

[0020] Figure 2 This is a schematic diagram of the overall bottom view structure of a clamping device for CNC machining of complex free-form surface parts proposed by the present invention;

[0021] Figure 3 A schematic diagram of the combined structure of a machining support module and a machining cleaning module of a clamping device for CNC machining of complex free-form surface parts proposed by the present invention;

[0022] Figure 4 This is a schematic diagram of the internal cross-sectional structure of a fixing seat of a clamping device for CNC machining of complex free-form surface parts proposed by the present invention;

[0023] Figure 5 A schematic diagram of the combined structure of a driving gear ring and a movable block of a clamping device for CNC machining of complex free-form surface parts proposed by the present invention;

[0024] Figure 6 A schematic diagram of the combined structure of an electric push rod and a mounting frame of a clamping device for CNC machining of complex free-form surface parts proposed by the present invention;

[0025] Figure 7 A schematic diagram of the structure of a processing support module of a clamping device for CNC processing of complex free-form surface parts proposed by the present invention;

[0026] Figure 8 This is a schematic diagram of the structure of a processing and cleaning module of a clamping device for CNC processing of complex free-form surface parts proposed by the present invention;

[0027] Fig. 9 This is a schematic diagram of the internal cross-sectional structure of a collection bin of a clamping device for CNC machining of complex free-form surface parts proposed by the present invention;

[0028] Fig.10 This is a schematic diagram of the combined structure of an annular frame and annular airbag of a clamping device for CNC machining of complex free-form surface parts proposed by the present invention.

[0029] In the figure: 1, processing base; 2, support seat; 3, processing support module; 301, fixed seat; 302, installation frame; 303, electric push rod; 304, guide rod; 305, drive motor; 306, installation cavity; 307, drive block; 308, limit guide groove; 309, gear mouth; 310, movable block; 311, drive gear ring; 312, screw rod; 313, clamping plate; 314, arc guide rod; 315, support airbag; 316, take-up disk; 317, delivery pump; 318, installation part; 319, installation plate frame; 320, movable frame; 321, motor 1; 322, drive gear; 323, take-up wheel; 324, motor 2; 325, connecting cable; 326, elastic plate; 327, installation rod frame; 3 28. Support spring; 329. Lifting rod; 330. Air flow tube; 331. Axis rod; 332. Guide; 333. Connecting rope; 334. Motor three; 4. Fixed plate; 5. Placement pedestal; 6. Processing and cleaning module; 601. Annular tube; 602. Cleaning tube; 603. Air flow pump; 604. Storage bin; 605. Connecting frame; 606. Negative pressure pump; 607. Collecting tube; 608. Collecting bin; 609. Annular frame; 610. Stirring plate frame; 611. Power motor; 612. Transmission gear; 613. Gear ring; 614. Upper bin ring frame; 615. Cleaning nozzle; 7. Stepper motor; 8. Flip arm; 9. Air pump; 10. Connecting tube; 11. Connecting bin; 12. Delivery pipe; 13. Ring airbag; 14. Annular frame. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0031] Reference Figure 1-Figure 10 A clamping device for CNC machining of complex free-form surface parts includes a machining base 1, the top of the machining base 1 is fixedly connected to two support seats 2, and the tops of the two support seats 2 are provided with a machining support module 3, the machining support module 3 includes two fixed seats 301, and the two fixed seats 301 are respectively fixedly connected to the tops of the two support seats 2, the top of the machining base 1 is provided with two fixed openings, the insides of the two fixed openings are provided with a machining cleaning module 6, and the machining cleaning module 6 is located below the machining support module 3, one side outer wall of the machining base 1 is fixedly connected to a fixed plate 4, and one side outer wall of the fixed plate 4 is fixedly connected to two placement pedestals 5.

[0032] Specifically, when in use, the pedestal 5 is placed to place the processed parts; the processing support module 3 can clamp and fix the complex free-form surface parts when processing them, and can support the complex free-form surface parts to avoid deformation of the complex free-form surface parts caused by operational errors during CNC processing, thereby ensuring the processing quality of the device when in use to meet the processing requirements; the processing cleaning module 6 can clean the debris produced by processing in real time when in use to avoid debris accumulation, so as to facilitate the use of the device, and can collect the debris in a centralized manner when in use for subsequent processing to meet the use requirements of the device.

[0033] Reference Figure 1-Figure 7In a preferred embodiment, the two fixing seats 301 are each provided with an installation cavity 306, the interiors of the two installation cavities 306 are connected to a driving gear ring 311 through a bearing, the two fixing seats 301 are each connected to a screw rod 312 and two guide rods 304 through a bearing, the outer walls of the two screw rods 312 and the four guide rods 304 are collectively provided with a driving block 307, the plurality of driving blocks 307 are respectively located in the two installation cavities 306, the three driving blocks 307 in the same installation cavity 306 are all meshed with the same driving gear ring 311, and the two fixing seats 301 are both fixedly connected to A driving motor 305 is connected, and the output shafts of the two driving motors 305 are respectively connected to one end of the two screw rods 312 through a coupling; the outer walls of the two fixed seats 301 are each provided with three limiting guide grooves 308, and the plurality of limiting guide grooves 308 are respectively connected to the interior of the two mounting cavities 306; the tops of the plurality of driving blocks 307 are slidably connected with movable blocks 310, and the outer walls of the plurality of movable blocks 310 are respectively in contact with the inner walls of the plurality of limiting guide grooves 308; the tops of the plurality of movable blocks 310 are each fixedly connected with a clamping plate 313, and the outer walls of one side of the plurality of movable blocks 310 are each provided with mounting holes, and the plurality of The inside of the mounting holes are all fixedly connected with electric push rods 303, the output ends of the multiple electric push rods 303 are all fixedly connected with the mounting frames 302, and the tops of the multiple mounting frames 302 are all provided with gear openings 309; the inner walls on both sides of the multiple mounting frames 302 are all fixedly connected with two arc-shaped guide rods 314, the outer walls of the two arc-shaped guide rods 314 on the same mounting frame 302 are all slidably connected with the same movable frame 320, the multiple movable frames 320 are all fixedly connected with motors 1 321, the output shafts of the multiple motors 1 321 are all connected with driving gears 322 through couplings, and the multiple driving gears 322 are divided into The plurality of movable frames 320 are respectively meshed with the plurality of gear openings 309, and the tops of the plurality of movable frames 320 are fixedly connected with mounting plates, the inner walls on both sides of the plurality of mounting plate frames 319 are connected with the same shaft member 331 through bearings, the outer walls of the plurality of shaft members 331 are fixedly connected with lifting rods 329, one ends of the plurality of lifting rods 329 are rotatably connected with mounting rod frames 327, the inner walls of the plurality of mounting rod frames 327 are fixedly connected with supporting airbags 315, the bottoms of the plurality of mounting rod frames 327 are fixedly connected with elastic plates 326, and one ends of the plurality of elastic plates 326 are respectively fixedly connected with the bottoms of the plurality of supporting airbags 315;The outer walls of one side of the multiple lifting rods 329 are fixedly connected with support springs 328, one end of the multiple support springs 328 are respectively fixedly connected to the bottom of the multiple elastic plates 326, and the outer walls of one side of the multiple mounting plates 319 are fixedly connected with motor two 324, the output shafts of the multiple motor two 324 are connected to the winding wheel 323 through a coupling, and the multiple winding wheels 323 are provided with connecting cables 325, one end of the multiple connecting cables 325 are respectively fixedly connected to the bottom of the multiple elastic plates 326, and the multiple mounting plates 319 are fixedly connected with motor three 334 and the delivery pump 317, and the multiple motors The output shafts of the three 334 are all connected to the winding disc 316 through a coupling, and the winding discs 316 are all provided with connecting cables 333, and one end of the connecting cables 333 is fixedly connected to the outer wall of one side of the lifting rods 329, and the tops of the multiple mounting plate racks 319 are fixedly connected to the mounting parts 318, and the multiple mounting parts 318 are all provided with guides 332, and the multiple connecting cables 333 are respectively located inside the multiple guides 332, and the output ends of the multiple delivery pumps 317 are fixedly connected to the airflow tubes 330, and the output ends of the multiple airflow tubes 330 are respectively connected to the inside of the multiple support airbags 315.;

[0034] Specifically, when the complex free-form surface part moves to the top of the fixed seat 301, the drive motor 305 is started, and the drive motor 305 drives the lead screw member 312 to rotate, thereby causing the lead screw member 312 to drive one of the drive blocks 307 to move, and because the drive block 307 is meshed with the drive gear ring 311, the drive gear ring 311 is rotated, thereby driving the other two drive blocks 307 to move on the guide rod 304. At this time, the movement of the drive block 307 can drive the movable block 310 to move inside the limiting guide groove 308, thereby driving the clamping plate 313 to clamp and fix the complex free-form surface part. After the fixation is completed, the electric push rod 303 is started, and the position of the mounting frame 302 is adjusted by the electric push rod 303, and the motor three 334 and the motor two 324 are started. The motor three 334 drives the winding disk 316 to rotate, thereby tightening the connecting rope 333, so that The connecting cable 333 pulls the lifting rod 329 to lift, thereby driving the mounting rod frame 327 and the supporting airbag 315 to lift, and at the same time, the motor 2 324 drives the winding wheel 323 to tighten the connecting cable 325, so that the connecting cable 325 pulls the elastic plate 326 and compresses the supporting spring 328, so that the supporting airbag 315 remains in a horizontal state during lifting, and at this time, the delivery pump 317 inflates the supporting airbag 315 through the airflow tube 330 until the supporting airbag 315 contacts the complex free-form surface part, and then continuously adjusts the height of the lifting rod 329 and the supporting airbag 315 as the processing proceeds, and starts the motor 1 321, which can drive the driving gear 322 to rotate through the motor 1 321, and because the driving gear 322 is meshed with the gear mouth 309, the driving gear 322 drives the movable frame 320 to move on the arc guide rod 314 to change the support position as the processing proceeds;

[0035] In specific application scenarios, the processing support module 3 is suitable for CNC processing and processing fixation links of complex free-form surface parts, blades, etc., that is, the processing support module 3 can stably clamp the parts when in use, thereby avoiding the loosening of the complex free-form surface parts during use and affecting the processing quality, so as to increase the use effect of the device, and when performing CNC processing, the processing support module 3 can provide auxiliary support for the complex free-form surface parts to be processed of the complex free-form surface parts, so as to increase the force strength of the complex free-form surface parts during processing, thereby avoiding the deformation of the complex free-form surface parts caused by the excessive downward movement of the processing equipment due to the operating errors of the staff during CNC processing, thereby improving the use effect of the device during use.

[0036] Reference Figure 1 , Figure 2 , Figure 3 , Figure 8 and Fig. 9In a preferred embodiment, the processing and cleaning module 6 includes two collecting bins 608, and the two collecting bins 608 are respectively fixedly connected to the inner walls of the two fixed ports, and the bottoms of the two collecting bins 608 are fixedly connected with collection pipes 607, and the input ends of the two collection pipes 607 are fixedly connected to the same storage bin 604, and the outer wall of the storage bin 604 is fixedly connected to a negative pressure pump 606, and the outer wall of the negative pressure pump 606 is fixedly connected to a connecting frame 605, and the inner wall of the connecting frame 605 is fixedly connected to an airflow pump 603, and the output end of the airflow pump 603 is connected to two annular tubes 601 through pipelines, and the two annular tubes 601 are respectively located below the two support seats 2; the outer walls of the two annular tubes 601 are fixedly connected to multiple cleaning tubes 602, and the output ends of the multiple cleaning tubes 602 are fixedly connected It is connected to a cleaning nozzle 615, and multiple cleaning nozzles 615 are respectively located above the two fixed seats 301, and the inner walls of the two fixed seats 301 are fixedly connected to the upper bin ring frame 614, the outer wall of the upper bin ring frame 614 and the outer wall of the collecting bin 608 on the same side are fixedly connected to the same annular frame 609, the outer walls of the two annular frames 609 are fixedly connected to the gear ring 613, the inner walls of the two annular frames 609 are fixedly connected to the stirring plate frame 610, and the outer walls of the two stirring plate frames 610 are in contact with the inner walls of the two collecting bins 608 respectively, and the top of the processing base 1 is fixedly connected to two power motors 611, and the output shafts of the two power motors 611 are connected to the transmission gears 612 through couplings, and the two transmission gears 612 are respectively meshed with the two gear rings 613.

[0037] Specifically, during processing, the airflow pump 603 is started, and the gas is transported to the inside of the annular tube 601 through the airflow pump 603, and the gas is transported to the inside of the cleaning tube 602 through the annular tube 601, and then the gas is transported to the cleaning nozzle 615 through the cleaning tube 602 to clean the debris on the surface of the fixed seat 301. After that, the debris is affected by the airflow and moves to the inside of the upper bin ring frame 614, and then falls into the inside of the collection bin 608. At this time, the power motor 611 is started, and the power motor 611 can drive the transmission gear 612 to rotate. Since the transmission gear 612 is meshed with the gear ring 613, the power motor 611 can drive the annular frame 609 and the stirring plate frame 610 to rotate to avoid debris blockage. At the same time, the negative pressure pump 606 is started, so that the inside of the storage bin 604 is in a negative pressure state, so that the debris enters the storage bin 604 for collection;

[0038] In a specific application scenario, the processing and cleaning module 6 is suitable for the processing debris cleaning link, that is, the processing and cleaning module 6 can clean the debris that falls on the surface of the fixed seat 301 during processing when in use, so that the device can collect the debris in a centralized manner, and then it is convenient for the staff to centrally process the debris in subsequent use, so as to increase the use effect and diversity of the device, and when cleaning, the processing and cleaning module 6 can stir the debris entering the collection bin 608, so as to avoid the debris from clogging the conveying pipe 12 when the debris is collected, so as to further increase the use effect of the device.

[0039] Reference Figure 1 , Figure 2 and Fig.10 In a preferred embodiment, two stepper motors 7 are fixedly connected to the fixed plate 4, and the output shafts of the two stepper motors 7 are connected to the flip arms 8 through couplings. The inner walls of the two flip arms 8 are fixedly connected to the annular frames 14, and the two annular frames 14 are respectively located above the two placement pedestals 5; the tops of the two flip arms 8 are fixedly connected to air pumps 9, the output ends of the two air pumps 9 are fixedly connected to connecting pipes 10, the output ends of the two connecting pipes 10 are fixedly connected to connecting warehouses 11, the outer walls of the two connecting warehouses 11 are fixedly connected to two conveying pipes 12, the output ends of the four conveying pipes 12 are fixedly connected to annular air bags 13, the outer walls of the four annular air bags 13 are respectively fixedly connected to the inner walls of the two annular frames 14, and the tops of the two flip arms 8 are opened with circular openings, and the outer walls of the two connecting warehouses 11 are respectively fixedly connected to the inner walls of the two circular openings.

[0040] Specifically, when in use, the complex free-form surface part is placed on the placement base 5, and the complex free-form surface part is located inside the annular frame 14. At this time, the air pump 9 is started, and the gas is transported to the inside of the connecting pipe 10 through the air pump 9, and further transported to the inside of the connecting chamber 11 and the connecting pipe, so that the gas enters the annular air bag 13 to fix the complex free-form surface part. Then, the stepper motor 7 is started, and the stepper motor 7 drives the flip arm 8 to flip, so that the flip arm 8 drives the complex free-form surface part to move to the center above the fixing seat 301;

[0041] In a specific application scenario, the air pump 9 and the annular airbag 13 can be used to fix the complex free-form surface parts during use, so that they can be stably flipped by the flip arm 8 during use, and the device can locate the fixed points of the complex free-form surface parts during use to avoid displacement during manual placement, so as to ensure the fixing effect of the device during processing and use. At the same time, after processing, the device can move and collect the parts to avoid the high temperature of the parts that have just been processed from causing harm to the staff, thereby further increasing the use effect of the device.

[0042] A clamping method for CNC machining of complex free-form surface parts, using the clamping device for CNC machining of complex free-form surface parts as described above, comprises the following steps:

[0043] Step 1: When in use, place the complex free-form surface part on the placement base 5, and make the complex free-form surface part located inside the annular frame 14. At this time, start the air pump 9, and transport the gas to the inside of the connecting pipe 10 through the air pump 9, and further transport it to the inside of the connecting chamber 11 and the connecting pipe, so that the gas enters the annular air bag 13 to fix the complex free-form surface part. Then start the stepper motor 7, and drive the flip arm 8 to flip through the stepper motor 7, so that the flip arm 8 drives the complex free-form surface part to move to the center above the fixing seat 301;

[0044] The second step is to start the drive motor 305, and the drive motor 305 drives the lead screw 312 to rotate, so that the lead screw 312 drives one of the drive blocks 307 to move, and because the drive block 307 is meshed with the drive gear ring 311, the drive gear ring 311 rotates, thereby driving the other two drive blocks 307 to move on the guide rod 304. At this time, the movement of the drive block 307 can drive the movable block 310 to move inside the limiting guide groove 308, thereby driving the clamping plate 313 to clamp and fix the complex free-form surface part. After the fixation is completed, the electric push rod 303 is started, and the position of the mounting frame 302 is adjusted by the electric push rod 303, and the motor three 334 and the motor two 324 are started. The motor three 334 drives the winding drum 316 to rotate, thereby tightening the connecting rope 333, so that The connecting cable 333 pulls the lifting rod 329 to lift, thereby driving the mounting rod frame 327 and the supporting airbag 315 to lift, and at the same time, the motor 2 324 drives the winding wheel 323 to tighten the connecting cable 325, so that the connecting cable 325 pulls the elastic plate 326 and compresses the supporting spring 328, so that the supporting airbag 315 remains in a horizontal state during lifting, and at this time, the delivery pump 317 inflates the supporting airbag 315 through the airflow tube 330 until the supporting airbag 315 contacts the complex free-form surface part, and then continuously adjusts the height of the lifting rod 329 and the supporting airbag 315 as the processing proceeds, and starts the motor 1 321, which can drive the driving gear 322 to rotate through the motor 1 321, and because the driving gear 322 is meshed with the gear mouth 309, the driving gear 322 drives the movable frame 320 to move on the arc guide rod 314 to change the support position as the processing proceeds;

[0045] Step three, during processing, start the airflow pump 603, and transport the gas to the inside of the annular tube 601 through the airflow pump 603, and transport the gas to the inside of the cleaning tube 602 through the annular tube 601, and then transport the gas to the cleaning nozzle 615 through the cleaning tube 602 to clean the debris on the surface of the fixed seat 301. The debris is then moved to the inside of the upper bin ring frame 614 under the influence of the airflow, and then falls into the collection bin 608. At this time, start the power motor 611, and the power motor 611 can drive the transmission gear 612 to rotate. Since the transmission gear 612 is meshed with the gear ring 613, the power motor 611 can drive the annular frame 609 and the stirring plate frame 610 to rotate to avoid debris blockage. At the same time, the negative pressure pump 606 is started, so that the inside of the storage bin 604 is in a negative pressure state, so that the debris enters the storage bin 604 and is collected until the CNC processing is completed.

[0046] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A clamping device for CNC machining of complex free-form surface parts, comprising a machining base (1), characterized in that: The top of the processing base (1) is fixedly connected to two support bases (2), and a processing support module (3) is arranged on the top of the two support bases (2), and the processing support module (3) comprises two fixed bases (301), and the two fixed bases (301) are respectively fixedly connected to the tops of the two support bases (2). The top of the processing base (1) is provided with two fixed openings, and a processing cleaning module (6) is arranged inside the two fixed openings, and the processing cleaning module (6) is located below the processing support module (3). A fixed plate (4) is fixedly connected to an outer wall on one side of the processing base (1), and two placement pedestals (5) are fixedly connected to an outer wall on one side of the fixed plate (4).

2. The clamping device for CNC machining of complex free-form surface parts according to claim 1, characterized in that: The two fixed seats (301) are each provided with an installation cavity (306) inside, and the two installation cavities (306) are each movably connected to a driving gear ring (311) inside, and the two fixed seats (301) are each movably connected to a lead screw member (312) and two guide rods (304), and the outer walls of the two lead screw members (312) and the four guide rods (304) are collectively provided with a driving block member (307), and the plurality of driving block members (307) are respectively located inside the two installation cavities (306), and the three driving block members (307) inside the same installation cavity (306) are all meshed with the same driving gear ring (311), and the two fixed seats (301) are each fixedly connected to a driving motor (305), and the output shafts of the two driving motors (305) are respectively connected to one end of the two lead screw members (312) through a coupling.

3. The clamping device for CNC machining of complex free-form surface parts according to claim 2, characterized in that: The outer walls of the two fixed seats (301) are each provided with three limiting guide grooves (308), and the plurality of limiting guide grooves (308) are respectively connected to the interior of the two mounting cavities (306); the tops of the plurality of driving blocks (307) are each movably connected to a movable block (310); the outer walls of the plurality of movable blocks (310) are respectively in contact with the inner walls of the plurality of limiting guide grooves (308); the tops of the plurality of movable blocks (310) are each fixedly connected to a clamping plate (313); and the outer walls of one side of the plurality of movable blocks (310) are each provided with a mounting hole; the interiors of the plurality of mounting holes are each fixedly connected to an electric push rod (303); the output ends of the plurality of electric push rods (303) are each fixedly connected to a mounting frame (302); and the tops of the plurality of mounting frames (302) are each provided with a gear opening (309).

4. The clamping device for CNC machining of complex free-form surface parts according to claim 3, characterized in that: The inner walls on both sides of the plurality of mounting frames (302) are fixedly connected to two arc-shaped guide rods (314), the outer walls of the two arc-shaped guide rods (314) on the same mounting frame (302) are movably connected to the same movable frame (320), the plurality of movable frames (320) are fixedly connected to a motor 1 (321), the output shafts of the plurality of motors 1 (321) are connected to a driving gear (322) via a coupling, the plurality of driving gears (322) are respectively meshed with the plurality of gear openings (309), and the tops of the plurality of movable frames (320) are fixedly connected to The inner walls of the two sides of the multiple mounting plate frames (319) are movably connected to the same shaft member (331), the outer walls of the multiple shaft members (331) are fixedly connected to the lifting rod members (329), one end of the multiple lifting rod members (329) are movably connected to the mounting rod frames (327), the inner walls of the multiple mounting rod frames (327) are fixedly connected to the supporting airbags (315), the bottoms of the multiple mounting rod frames (327) are fixedly connected to the elastic plate members (326), and one end of the multiple elastic plate members (326) is respectively fixedly connected to the bottoms of the multiple supporting airbags (315).

5. A clamping method for CNC machining of complex free-form surface parts, using a clamping device for CNC machining of complex free-form surface parts as described in claim 4, characterized in that: The steps include: Step 1: Place the complex free-form surface part on the placement base (5), fix it by the ring airbag (13), and start the stepper motor (7) to flip the flip arm (8), so that the complex free-form surface part moves to the top of the fixed seat (301); Step 2: When the complex free-form surface part moves to the top of the fixing seat (301), the processing support module (3) is started to fix the complex free-form surface part and support the complex free-form surface part to be processed. After the support, the CNC processing equipment is started for processing.

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