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

Abstract

The utility model 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 to solve 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 has 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 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 utility model relates to the technical field of numerical control machining of parts, in particular to a clamping device and a clamping method for numerical control machining of complex free-form surface parts. Background Technique

[0002] There are complex free-form surface parts in tunnel boring machines, automobiles, etc., such as the drill bits of tunnel boring machines, the complex free-form surface part pieces of automotive turbochargers, etc.

[0003] A tunnel boring machine is a new type of advanced high-end tunnel construction equipment that uses a high-speed rotating drill bit to excavate, while breaking the surrounding rock in the tunnel and tunneling to form the entire tunnel cross-section. Improving the machining 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, and save the cost of tunnel construction. An automotive turbocharger is an air compressor that drives the energy of the exhaust gas discharged by the engine through complex free-form surface part pieces, compresses the air and enters 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 the machining accuracy, extending the service life of the parts, and ensuring the performance of the automotive engine and driving safety are of great significance.

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

[0005] However, when the existing complex free-form surface parts are clamped and fixed during numerical control machining, the clamping device is difficult to effectively fix and support the parts. Moreover, since the strength of the parts is lower than that of other parts, during the numerical control machining operation, not only the errors involved in the part clamping process will finally accumulate on the machined parts, but also the parts are prone to deformation due to mistakes, directly affecting the machining accuracy, machining efficiency and machining cost of the complex free-form surface parts, and even causing the parts to be unusable. Summary of the Utility Model

[0006] The present utility model discloses a clamping device for numerically controlled machining of complex free-form surface parts, aiming to solve the problem that in the prior art, when clamping and fixing complex free-form surface parts during numerically controlled machining, it is difficult for the clamping device to effectively fix and support the parts. Moreover, since the strength of the parts is lower than that of other parts, during numerically controlled machining operations, not only will the errors involved in the part clamping process finally accumulate on the machined parts, but also the parts are prone to deformation due to mistakes, directly affecting the machining accuracy, machining efficiency, and machining cost of complex free-form surface parts, and even rendering the parts unusable.

[0007] A clamping device for numerically controlled machining of complex free-form surface parts proposed by the present utility model includes a machining base. The top of the machining base is fixedly connected with two support seats, and a machining support and fixation module is arranged on the top of the two support seats. The machining support and fixation module includes two fixing seats, and the two fixing seats are respectively fixedly connected to the tops of the two support seats. Two fixing openings are formed in the top of the machining base, and a machining cleaning module is arranged inside the two fixing openings, and the machining cleaning module is located below the machining support and fixation module. One side outer wall of the machining base is fixedly connected with a fixing plate member, and two placing pedestals are fixedly connected to one side outer wall of the fixing plate member.

[0008] By providing a machining base, support seats, machining support and fixation module, fixing openings, machining cleaning module, fixing plate member, and placing pedestals, during use, the placing pedestals are used to place the machining parts; the machining support and fixation module can clamp and fix the complex free-form surface parts during machining, and can support the complex free-form surface parts, thereby avoiding deformation of the complex free-form surface parts caused by operation mistakes during numerically controlled machining, and thus ensuring the machining quality of the device during use to meet the machining requirements; the machining cleaning module can clean the debris produced during machining in real time during use, avoid debris accumulation, facilitate the use of the device, and can collect the debris centrally during use for subsequent processing to meet the use requirements of the device.

[0009] In a preferred embodiment, installation cavities are respectively formed inside the two fixed seats. Driving gear rings are movably connected inside the two installation cavities. A lead screw member and two guide rods are movably connected to each of the two fixed seats. Driving block members are arranged on the outer walls of the two lead screw members and the four guide rods. A plurality of driving block members are respectively located inside the two installation cavities. The three driving block members inside the same installation cavity are all engaged with the same driving gear ring. Driving motors are fixedly connected to both of the two fixed seats. The output shafts of the two driving motors are respectively connected to one ends of the two lead screw members through couplings. Three limiting guide grooves are respectively formed on the outer walls of the two fixed seats. The plurality of limiting guide grooves are respectively communicated with the interiors of the two installation cavities. Movable block members are movably connected to the tops of the plurality of driving block members. The outer walls of the plurality of movable block members are respectively in contact with the inner walls of the plurality of limiting guide grooves. Clamping plate members are fixedly connected to the tops of the plurality of movable block members. Installation holes are formed on the outer walls of one sides of the plurality of movable block members. Electric push rods are fixedly connected inside the plurality of installation holes. The output ends of the plurality of electric push rods are fixedly connected with installation frames. Gear openings are formed on the tops of the plurality of installation frames. Two arc-shaped guide rods are fixedly connected to the inner walls on both sides of each of the plurality of installation frames. The outer walls of the two arc-shaped guide rods on the same installation frame are movably connected with the same movable frame. Motors I are fixedly connected to the tops of the plurality of movable frames. The output shafts of the plurality of motors I are respectively connected with driving gears through couplings. The plurality of driving gears are respectively engaged with the plurality of gear openings. Installation plate members are fixedly connected to the tops of the plurality of movable frames. The same shaft member is movably connected to the inner walls on both sides of each of the plurality of installation plate frames. Lifting rod members are fixedly connected to the outer walls of the plurality of shaft members. One ends of the plurality of lifting rod members are movably connected with installation rod frames. Support air bags are fixedly connected to the inner walls of the plurality of installation rod frames. Elastic plate members are fixedly connected to the bottoms of the plurality of installation rod frames. One ends of the plurality of elastic plate members are respectively fixedly connected to the bottoms of the plurality of support air bags. Support springs are fixedly connected to the outer walls of one sides of the plurality of lifting rod members. One ends of the plurality of support springs are respectively fixedly connected to the bottoms of the plurality of elastic plate members. Motors II are fixedly connected to the outer walls of one sides of the plurality of installation plate frames. The output shafts of the plurality of motors II are respectively connected with winding wheels through couplings. Connecting cables are arranged on the plurality of winding wheels. One ends of the plurality of connecting cables are respectively fixedly connected to the bottoms of the plurality of elastic plate members. Motors III and delivery pumps are fixedly connected to each of the plurality of installation plate frames. The output shafts of the plurality of motors III are respectively connected with winding disks through couplings. Connecting cables are arranged on the plurality of winding disks. One ends of the plurality of connecting cables are respectively fixedly connected to the outer walls of one sides of the plurality of lifting rod members. Installation members are fixedly connected to the tops of the plurality of installation plate frames. Guide members are arranged on the plurality of installation members. The plurality of connecting cables are respectively located inside the plurality of guide members. Air flow pipes are fixedly connected to the output ends of the plurality of delivery pumps. The output ends of the plurality of air flow pipes are respectively communicated with the interiors of the plurality of support air bags.

[0010] By setting up a processing and fixing module, the processing and fixing module can stably clamp the parts during use, thus avoiding the loosening of complex free-form surface parts during use and affecting the processing quality, so as to improve the use effect of the device. And during numerical control processing, the processing and fixing module can assist in supporting the complex free-form surface parts to be processed of the complex free-form surface parts, so as to increase the stress intensity of the complex free-form surface parts during processing. Thus, during numerical control processing, it can avoid the deformation of the complex free-form surface parts caused by the excessive downward movement of the processing equipment due to the operator's mistakes, and further improve the use effect of the device during use.

[0011] In a preferred solution, the processing and cleaning module includes two collection bins, which are respectively fixedly connected to the inner walls of two fixed ports. Collection pipes are fixedly connected to the bottoms of the two collection bins. The input ends of the two collection pipes are fixedly connected to the same storage bin. A negative pressure pump is fixedly connected to the outer wall of the storage bin. And a connecting frame is fixedly connected to the outer wall of the negative pressure pump. An air flow pump is fixedly connected to the inner wall of the connecting frame. The output end of the air flow pump is connected to two annular pipes through pipes. The two annular pipes are respectively located below the two support seats. A plurality of cleaning pipes are fixedly connected to the outer walls of the two annular pipes. The output ends of the plurality of cleaning pipes are all fixedly connected to cleaning nozzles. The plurality of cleaning nozzles are respectively located above the two fixed seats. And upper bin ring frames are fixedly connected to the inner walls of the two fixed seats. An annular frame is fixedly connected to the outer wall of the upper bin ring frame and the outer wall of the collection bin on the same side. Gear ring parts are fixedly connected to the outer walls of the two annular frames. Stirring plate frames are fixedly connected to the inner walls of the two annular frames. The outer walls of the two stirring plate frames are respectively in contact with the inner walls of the two collection bins. Two power motors are fixedly connected to the top of the processing base. The output shafts of the two power motors are both connected to transmission gears through couplings. The two transmission gears are respectively meshed with the two gear ring parts.

[0012] By setting up a processing and cleaning module, the processing and cleaning module can clean the debris falling on the surface of the fixed seat during processing, so that the device can centrally collect the debris, and thus it is convenient for the staff to centrally process the debris during subsequent use, so as to improve the use effect and diversity of the device. And during cleaning, the processing and cleaning module can stir the debris entering the interior of the collection bin, so as to avoid the blockage of the conveying pipeline by the debris during debris collection, and further improve the use effect of the device.

[0013] In a preferred embodiment, two stepping motors are fixedly connected to the fixed plate member. The output shafts of the two stepping motors are both connected to a flipping arm through a coupling. The inner walls of the two flipping arms are both fixedly connected with an annular frame, and the two annular frames are respectively located above the two placement pedestals; the tops of the two flipping arms are both fixedly connected with an air pump. The output ends of the two air pumps are both fixedly connected with a connecting pipe. The output ends of the two connecting pipes are both fixedly connected with a communication chamber. Two conveying pipes are fixedly connected to the outer walls of the two communication chambers. The output ends of the four conveying pipes are all fixedly connected with an annular airbag. The outer walls of the four annular airbags are respectively fixedly connected to the inner walls of the two annular frames, and circular openings are formed at the tops of the two flipping arms. The outer walls of the two communication chambers are respectively fixedly connected to the inner walls of the two circular openings.

[0014] By providing a stepping motor, a flipping arm, an annular frame, an annular airbag, a communicating pipe, a communication chamber, an air pump and a connecting pipe, during use, the complex free-form surface part can be fixed through the air pump and the annular airbag, so that the flipping arm can stably flip it during use, and further, during use, the device can position the fixing points of the complex free-form surface part to avoid deviation during manual placement, so as to ensure the fixing effect during the processing and use of the device. At the same time, after processing, the device can move and collect the parts to avoid the high temperature of the just-processed parts from causing harm to the staff, further increasing the use effect of the device.

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

[0016] Step 1: Place the complex free-form surface part on the placement pedestal, fix it through the annular airbag, and start the stepping motor to flip the flipping arm, so that the complex free-form surface part moves above the fixed seat;

[0017] Step 2: When the complex free-form surface part moves above the fixed seat, start the processing support and fixation module to fix the complex free-form surface part and support the complex free-form surface part to be machined. After the support, start the numerical control machining equipment for machining.

[0018] As can be seen from the above, the clamping device for numerically controlled 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 assist in supporting 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 further avoiding deformation of the complex free-form surface parts caused by operation errors during use, thus ensuring the machining quality. Description of the Drawings

[0019] Figure 1Schematic diagram of the overall structure of a clamping device for numerically controlled machining of complex free-form surface parts proposed by the present utility model;

[0020] Figure 2 Schematic diagram of the overall bottom view structure of a clamping device for numerically controlled machining of complex free-form surface parts proposed by the present utility model;

[0021] Figure 3 Schematic diagram of the combined structure of the machining support and fixation module and the machining cleaning module of a clamping device for numerically controlled machining of complex free-form surface parts proposed by the present utility model;

[0022] Figure 4 Schematic diagram of the internal sectional structure of the fixed seat of a clamping device for numerically controlled machining of complex free-form surface parts proposed by the present utility model;

[0023] Figure 5 Schematic diagram of the combined structure of the driving gear ring and the movable block of a clamping device for numerically controlled machining of complex free-form surface parts proposed by the present utility model;

[0024] Figure 6 Schematic diagram of the combined structure of the electric push rod and the mounting frame of a clamping device for numerically controlled machining of complex free-form surface parts proposed by the present utility model;

[0025] Figure 7 Schematic diagram of a partial structure of the machining support and fixation module of a clamping device for numerically controlled machining of complex free-form surface parts proposed by the present utility model;

[0026] Figure 8 Schematic diagram of the structure of the machining cleaning module of a clamping device for numerically controlled machining of complex free-form surface parts proposed by the present utility model;

[0027] Figure 9 Schematic diagram of the internal sectional structure of the collection bin of a clamping device for numerically controlled machining of complex free-form surface parts proposed by the present utility model;

[0028] Figure 10 Schematic diagram of the combined structure of the annular frame and the annular airbag of a clamping device for numerically controlled machining of complex free-form surface parts proposed by the present utility model.

[0029] In the figure: 1. Processing base; 2. Support base; 3. Processing and fixing module; 301. Fixed seat; 302. Installation frame; 303. Electric push rod; 304. Guide rod; 305. Driving motor; 306. Installation cavity; 307. Driving block; 308. Limit guide groove; 309. Gear opening; 310. Movable block; 311. Driving gear ring; 312. Lead screw part; 313. Clamping plate; 314. Arc guide rod; 315. Support airbag; 316. Take-up reel; 317. Delivery pump; 318. Installation part; 319. Installation plate frame; 320. Movable frame; 321. Motor 1; 322. Driving gear; 323. Take-up wheel; 324. Motor 2; 325. Connecting cable; 326. Elastic plate; 327. Installation rod frame; 328. Support spring; 329. Lifting rod; 330. Air flow pipe; 331. Shaft rod; 332. Guide part; 333. Connecting cable; 334. Motor 3; 4. Fixed plate; 5. Placing table; 6. Processing and cleaning module; 601. Annular pipe; 602. Cleaning pipe; 603. Air flow pump; 604. Storage bin; 605. Connecting frame; 606. Negative pressure pump; 607. Collection pipe; 608. Collection bin; 609. Annular frame; 610. Stirring plate frame; 611. Power motor; 612. Driving gear; 613. Gear ring part; 614. Upper bin ring frame; 615. Cleaning nozzle; 7. Stepper motor; 8. Flipping arm; 9. Air pump; 10. Connecting pipe; 11. Connecting chamber; 12. Delivery pipe; 13. Ring airbag; 14. Annular frame. Detailed implementation mode

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

[0031] Refer to Figures 1 - 10 , a clamping device for numerically controlled machining of complex free-form surface parts, including a processing base 1, two support bases 2 are fixedly connected to the top of the processing base 1, and a processing and fixing module 3 is arranged on the top of the two support bases 2. The processing and fixing module 3 includes two fixed seats 301, and the two fixed seats 301 are respectively fixedly connected to the top of the two support bases 2. Two fixing openings are provided in the top of the processing base 1, and a processing and cleaning module 6 is arranged inside the two fixing openings, and the processing and cleaning module 6 is located below the processing and fixing module 3. One side outer wall of the processing base 1 is fixedly connected to a fixed plate 4, and two placing tables 5 are fixedly connected to one side outer wall of the fixed plate 4.

[0032] Specifically, when in use, the placement pedestal 5 is used to place the parts to be processed; the processing support and fixation module 3 can clamp and fix the complex free-form surface parts during the processing of complex free-form surface parts, and by being able to support the complex free-form surface parts, it can avoid deformation of the complex free-form surface parts caused by operation errors during numerical control processing, thereby ensuring the processing quality of the device during use to meet the processing requirements; the processing and cleaning module 6 can clean the debris produced during processing in real time during use, avoid debris accumulation, facilitate the use of the device, and can collect the debris centrally during use for subsequent processing to meet the use requirements of the device.

[0033] Refer to Figures 1 - 7, in a preferred embodiment, installation cavities 306 are respectively formed inside two fixed seats 301. Driving gear rings 311 are respectively connected inside the two installation cavities 306 through bearings. A lead screw member 312 and two guide rods 304 are respectively connected to the two fixed seats 301 through bearings. Driving block members 307 are arranged on the outer walls of the two lead screw members 312 and the four guide rods 304. A plurality of driving block members 307 are respectively located inside the two installation cavities 306. The three driving block members 307 inside the same installation cavity 306 are all meshed with the same driving gear ring 311. Driving motors 305 are respectively and fixedly connected to the two fixed seats 301. The output shafts of the two driving motors 305 are respectively connected to one ends of the two lead screw members 312 through couplings; Three limiting guide grooves 308 are respectively formed on the outer walls of the two fixed seats 301. The plurality of limiting guide grooves 308 are respectively communicated with the inside of the two installation cavities 306. Movable block members 310 are respectively and slidably connected to the tops of the plurality of driving block members 307. The outer walls of the plurality of movable block members 310 are respectively in contact with the inner walls of the plurality of limiting guide grooves 308. Clamping plate members 313 are respectively and fixedly connected to the tops of the plurality of movable block members 310. Installation holes are respectively formed on the outer walls of one sides of the plurality of movable block members 310. Electric push rods 303 are respectively and fixedly connected inside the plurality of installation holes. The output ends of the plurality of electric push rods 303 are respectively and fixedly connected to installation frames 302. Gear openings 309 are respectively formed on the tops of the plurality of installation frames 302; Two arc guide rods 314 are respectively and fixedly connected to the inner walls on both sides of the plurality of installation frames 302. The outer walls of the two arc guide rods 314 on the same installation frame 302 are respectively and slidably connected to the same movable frame 320. Motors 321 are respectively and fixedly connected to the tops of the plurality of movable frames 320. The output shafts of the plurality of motors 321 are respectively connected to driving gears 322 through couplings. The plurality of driving gears 322 are respectively meshed with the plurality of gear openings 309. Installation plates are respectively and fixedly connected to the tops of the plurality of movable frames 320. The same shaft member 331 is respectively connected to the inner walls on both sides of the plurality of installation plate frames 319 through bearings. Lifting rod members 329 are respectively and fixedly connected to the outer walls of the plurality of shaft members 331. One ends of the plurality of lifting rod members 329 are respectively rotatably connected to installation rod frames 327. Support air bags 315 are respectively and fixedly connected to the inner walls of the plurality of installation rod frames 327. Elastic plate members 326 are respectively and fixedly connected to the bottoms of the plurality of installation rod frames 327. One ends of the plurality of elastic plate members 326 are respectively fixedly connected to the bottoms of the plurality of support air bags 315;On one side outer wall of multiple lifting rods 329, support springs 328 are fixedly connected. One end of each of the multiple support springs 328 is fixedly connected to the bottom of each of the multiple elastic plate members 326. On one side outer wall of multiple mounting plate frames 319, second motors 324 are fixedly connected. The output shafts of the multiple second motors 324 are respectively connected to winding wheels 323 through couplings. Connecting cables 325 are arranged on each of the multiple winding wheels 323. One end of each of the multiple connecting cables 325 is fixedly connected to the bottom of each of the multiple elastic plate members 326. Third motors 334 and delivery pumps 317 are fixedly connected to each of the multiple mounting plate frames 319. The output shafts of the multiple third motors 334 are respectively connected to winding discs 316 through couplings. Connecting cables 333 are arranged on each of the multiple winding discs 316. One end of each of the multiple connecting cables 333 is fixedly connected to one side outer wall of each of the multiple lifting rods 329. Mounting members 318 are fixedly connected to the top of each of the multiple mounting plate frames 319. Guide members 332 are arranged on each of the multiple mounting members 318. The multiple connecting cables 333 are respectively located inside the multiple guide members 332. The output ends of the multiple delivery pumps 317 are fixedly connected to air flow pipes 330. The output ends of the multiple air flow pipes 330 are respectively communicated with the inside of each of the multiple support air bags 315.;

[0034] Specifically, when the complex free-form surface part moves above the fixed seat 301, the driving motor 305 is started. The driving motor 305 drives the lead screw member 312 to rotate, so that the lead screw member 312 drives one of the driving block members 307 to move. Since the driving block member 307 meshes with the driving gear ring 311, the driving gear ring 311 rotates, and then drives the other two driving block members 307 to move on the guide rod 304. At this time, the movement of the driving block member 307 can drive the movable block member 310 to move inside the limit guide groove 308, and then drive the clamping plate member 313 to clamp and fix the complex free-form surface part. After the fixing is completed, the electric push rod 303 is started to adjust the position of the mounting frame 302 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 disc 316 to rotate, and then tightens the connecting cable 333, so that the connecting cable 333 pulls the lifting rod member 329 to lift, and then drives the mounting rod frame 327 and the support airbag 315 to lift. At the same time, the motor two 324 drives the winding wheel 323 to tighten the connecting cable 325, so that the connecting cable 325 pulls the elastic plate member 326 and compresses the support spring 328, so that the support airbag 315 remains horizontal when lifting. At this time, the transfer pump 317 inflates the support airbag 315 through the air flow pipe 330 until the support airbag 315 contacts the complex free-form surface part. After that, as the processing progresses, the heights of the lifting rod member 329 and the support airbag 315 are continuously adjusted, and the motor one 321 is started. The motor one 321 can drive the driving gear 322 to rotate. Since the driving gear 322 meshes with the gear port 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 progresses;

[0035] In a specific application scenario, the processing and fixing module 3 is applicable to the numerical control processing and processing and fixing links of complex free-form surface parts, blades, etc. That is, when the processing and fixing module 3 is used, it can stably clamp the parts, so as to avoid loosening of the complex free-form surface parts during use and affect the processing quality, so as to increase the use effect of the device. And during numerical control processing, the processing and fixing module 3 can assist in supporting the complex free-form surface part to be processed of the complex free-form surface part, so as to increase the stress intensity of the complex free-form surface part during processing, so as to avoid deformation of the complex free-form surface part caused by the over-down movement of the processing equipment due to operator error during numerical control processing, and thus improve the use effect of the device during use.

[0036] Refer to Figure 1 、 Figure 2 、 Figure 3 、 Figure 8 and Figure 9, in a preferred embodiment, the processing and cleaning module 6 includes two collection bins 608, the two collection bins 608 are respectively fixedly connected to the inner walls of the two fixed ports, the bottoms of the two collection bins 608 are both fixedly connected with collection pipes 607, the input ends of the two collection pipes 607 are fixedly connected to the same storage bin 604, the outer wall of the storage bin 604 is fixedly connected with a negative pressure pump 606, and the outer wall of the negative pressure pump 606 is fixedly connected with a connection frame 605. An air flow pump 603 is fixedly connected to the inner wall of the connection frame 605. The output end of the air flow pump 603 is connected to two annular pipes 601 through pipes. The two annular pipes 601 are respectively located below the two support seats 2; a plurality of cleaning pipes 602 are fixedly connected to the outer walls of the two annular pipes 601, and the output ends of the plurality of cleaning pipes 602 are all fixedly connected with cleaning nozzles 615. The plurality of cleaning nozzles 615 are respectively located above the two fixed seats 301, and upper bin ring frames 614 are fixedly connected to the inner walls of the two fixed seats 301. The outer walls of the upper bin ring frames 614 on the same side and the outer walls of the collection bins 608 are both fixedly connected to the same annular frame 609. Gear ring members 613 are fixedly connected to the outer walls of the two annular frames 609, and stirring plate frames 610 are fixedly connected to the inner walls of the two annular frames 609. The outer walls of the two stirring plate frames 610 are respectively in contact with the inner walls of the two collection bins 608. Two power motors 611 are fixedly connected to the top of the processing base 1, and the output shafts of the two power motors 611 are both connected with transmission gears 612 through couplings. The two transmission gears 612 are respectively engaged with the two gear ring members 613.

[0037] Specifically, during processing, the air flow pump 603 is started, the gas is transported to the inside of the annular pipe 601 through the air flow pump 603, and the gas is transported to the inside of the cleaning pipe 602 through the annular pipe 601, and then the gas is transported to the cleaning nozzle 615 through the cleaning pipe 602 to clean the debris on the surface of the fixed seat 301. After that, the debris is affected by the air flow and moves into the upper bin ring frame 614, and then falls into the collection bin 608. At this time, the power motor 611 is started, and the transmission gear 612 can be driven to rotate through the power motor 611. Since the transmission gear 612 is engaged with the gear ring member 613, the power motor 611 can drive the annular frame 609 and the stirring plate frame 610 to rotate, avoiding 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, and then the debris enters the inside of the storage bin 604 for collection;

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

[0039] Referring to Figure 1 、 Figure 2 and Figure 10 In a preferred embodiment, two stepping motors 7 are fixedly connected to the fixed plate member 4. The output shafts of the two stepping motors 7 are both connected to the flipping arms 8 through couplings. The inner walls of the two flipping arms 8 are both fixedly connected with annular frames 14, and the two annular frames 14 are respectively located above the two placing pedestals 5; the tops of the two flipping arms 8 are both fixedly connected with air pumps 9. The output ends of the two air pumps 9 are both fixedly connected with connecting pipes 10. The output ends of the two connecting pipes 10 are both fixedly connected with communicating bins 11. The outer walls of the two communicating bins 11 are both fixedly connected with two conveying pipes 12. The output ends of the four conveying pipes 12 are both fixedly connected with annular air bags 13. The outer walls of the four annular air bags 13 are respectively fixedly connected with the inner walls of the two annular frames 14, and circular openings are respectively formed at the tops of the two flipping arms 8. The outer walls of the two communicating bins 11 are respectively fixedly connected with the inner walls of the two circular openings.

[0040] Specifically, when in use, the complex free-form surface part is placed on the placing pedestal 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 conveyed into the inside of the connecting pipe 10 through the air pump 9, and further conveyed into the communicating bin 11 and the communicating pipe, so that the gas enters the annular air bag 13 to fix the complex free-form surface part. Then the stepping motor 7 is started, and the flipping arm 8 is driven to flip through the stepping motor 7, so that the flipping arm 8 drives the complex free-form surface part to move to the center above the fixed seat 301;

[0041] In a specific application scenario, when in use, the complex free-form surface part can be fixed by the air pump 9 and the annular air bag 13, so that it can be stably flipped by the flipping arm 8 during use. Furthermore, during use, the device can position the fixing points of the complex free-form surface part to avoid deviation during manual placement, so as to ensure the fixing effect during the processing and use of the device. At the same time, after processing, the device can move and collect the parts to avoid the high temperature of the just-processed parts from hurting the staff, and further increase the use effect of the device.

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

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

[0044] Step 2: When the complex free-form surface part moves above the fixed seat 301, start the driving motor 305, and through the driving motor 305, drive the screw member 312 to rotate. Furthermore, make the screw member 312 drive one of the driving block members 307 to move. And because the driving block member 307 meshes with the driving gear ring 311, the driving gear ring 311 rotates, and then drives the other two driving block members 307 to move on the guiding rod 304. At this time, the movement of the driving block member 307 can drive the movable block member 310 to move inside the limiting guide groove 308, and then drive the clamping plate member 313 to clamp and fix the complex free-form surface part. After the fixation is completed, start the electric push rod 303, and through the electric push rod 303, adjust the position of the mounting frame 302, and start the motor three 334 and the motor two 324. The motor three 334 drives the winding disc 316 to rotate, and then tightens the connecting cable 333. Thus, the connecting cable 333 pulls the lifting rod member 329 to lift, and then drives the mounting rod frame 327 and the supporting airbag 315 to lift. At the same time, the motor two 324 drives the winding wheel 323 to tighten the connecting cable 325, so that the connecting cable 325 pulls the elastic plate member 326 and compresses the supporting spring 328, so that the supporting airbag 315 remains horizontal when lifting. At this time, the conveying pump 317 inflates the supporting airbag 315 through the air flow pipe 330 until the supporting airbag 315 contacts the complex free-form surface part. Then, continuously adjust the height of the lifting rod member 329 and the supporting airbag 315 as the machining progresses, and start the motor one 321. Through the motor one 321, the driving gear 322 can be driven to rotate. Because the driving gear 322 meshes with the gear opening 309, the driving gear 322 drives the movable frame 320 to move on the arc-shaped guide rod 314 to change the supporting position as the machining progresses;

[0045] Step 3: During processing, start the air flow pump 603. Through the air flow pump 603, the gas is transported to the inside of the annular pipe 601, and then through the annular pipe 601, the gas is transported to the inside of the cleaning pipe 602. Furthermore, through the cleaning pipe 602, the gas is transported to the cleaning nozzle 615 to clean the debris on the surface of the fixed seat 301. After that, the debris moves into the upper bin ring frame 614 under the influence of the air flow and then falls into the collection bin 608. At this time, start the power motor 611. The power motor 611 can drive the transmission gear 612 to rotate. Since the transmission gear 612 meshes with the gear ring part 613, the power motor 611 can drive the annular frame 609 and the stirring plate frame 610 to rotate, avoiding the blockage of debris. At the same time, the negative pressure pump 606 is started, making the inside of the storage bin 604 in a negative pressure state, and then the debris enters the inside of the storage bin 604 for collection until the numerical control processing is completed.

[0046] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A clamping device for numerically controlled machining of complex free-form surface parts, comprising a machining base (1), characterized in that, Two support seats (2) are fixedly connected to the top of the processing base (1), and a processing support and fixation module (3) is arranged on the top of the two support seats (2). The processing support and fixation 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). Two fixing openings are formed in the top of the processing base (1), and a processing cleaning module (6) is arranged inside the two fixing openings, and the processing cleaning module (6) is located below the processing support and fixation module (3). One side outer wall of the processing base (1) is fixedly connected with a fixing plate member (4), and two placing pedestals (5) are fixedly connected to one side outer wall of the fixing plate member (4).

2. The clamping device for numerically controlled machining of a complex free-form surface part according to claim 1, characterized in that, Installation cavities (306) are formed inside both of the two fixed seats (301), and driving gear rings (311) are movably connected inside the two installation cavities (306). A lead screw member (312) and two guiding rods (304) are movably connected to both of the two fixed seats (301). Driving block members (307) are arranged on the outer walls of the two lead screw members (312) and the four guiding rods (304). A plurality of driving block members (307) are respectively located inside the two installation cavities (306). The three driving block members (307) inside the same installation cavity (306) are all meshed with the same driving gear ring (311). Driving motors (305) are fixedly connected to both of the two fixed seats (301), and the output shafts of the two driving motors (305) are respectively connected to one ends of the two lead screw members (312) through couplings.

3. The clamping device for numerical control machining of a complex free-form surface part according to claim 2, characterized in that, Three limiting guide grooves (308) are formed in the outer walls of both of the two fixed seats (301), and the plurality of limiting guide grooves (308) are respectively communicated with the inside of the two installation cavities (306). Movable block members (310) are movably connected to the tops of the plurality of driving block members (307), and the outer walls of the plurality of movable block members (310) are respectively in contact with the inner walls of the plurality of limiting guide grooves (308). Clamping plate members (313) are fixedly connected to the tops of the plurality of movable block members (310). Installation holes are formed in one side outer walls of the plurality of movable block members (310), and electric push rods (303) are fixedly connected inside the plurality of installation holes. The output ends of the plurality of electric push rods (303) are fixedly connected with installation frames (302), and gear openings (309) are formed in the tops of the plurality of installation frames (302).

4. The clamping device for numerically controlled machining of a complex free-form surface part according to claim 3, characterized in that, On both inner walls of the two sides of the multiple mounting frames (302), two arc-shaped guide rods (314) are fixedly connected. On the outer walls of the two arc-shaped guide rods (314) on the same mounting frame (302), the same movable frame (320) is movably connected. On the multiple movable frames (320), a first motor (321) is fixedly connected. The output shafts of the multiple first motors (321) are respectively connected with driving gears (322) through couplings. The multiple driving gears (322) are respectively engaged with multiple gear openings (309). And on the tops of the multiple movable frames (320), mounting plate members are fixedly connected. On both inner walls of the two sides of the multiple mounting plate frames (319), the same shaft member (331) is movably connected. On the outer walls of the multiple shaft members (331), lifting members (329) are fixedly connected. One ends of the multiple lifting members (329) are respectively movably connected with mounting rod frames (327). Inside the multiple mounting rod frames (327), support air bags (315) are fixedly connected. At the bottoms of the multiple mounting rod frames (327), elastic plate members (326) are fixedly connected. One ends of the multiple elastic plate members (326) are respectively fixedly connected with the bottoms of the multiple support air bags (315).

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