WO2021248623A1 - Système, procédé et appareil de commande numérique de découpe de surcote d'usinage de conduit aérospatial - Google Patents

Système, procédé et appareil de commande numérique de découpe de surcote d'usinage de conduit aérospatial Download PDF

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Publication number
WO2021248623A1
WO2021248623A1 PCT/CN2020/102037 CN2020102037W WO2021248623A1 WO 2021248623 A1 WO2021248623 A1 WO 2021248623A1 CN 2020102037 W CN2020102037 W CN 2020102037W WO 2021248623 A1 WO2021248623 A1 WO 2021248623A1
Authority
WO
WIPO (PCT)
Prior art keywords
clamping
positioning
catheter
base
cutting
Prior art date
Application number
PCT/CN2020/102037
Other languages
English (en)
Chinese (zh)
Other versions
WO2021248623A9 (fr
Inventor
马俊
林姚辰
林伟明
陈怡吒
陈芳吉
Original Assignee
浙江金马逊机械有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 浙江金马逊机械有限公司 filed Critical 浙江金马逊机械有限公司
Publication of WO2021248623A1 publication Critical patent/WO2021248623A1/fr
Publication of WO2021248623A9 publication Critical patent/WO2021248623A9/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D45/00—Sawing machines or sawing devices with circular saw blades or with friction saw discs
    • B23D45/12—Sawing machines or sawing devices with circular saw blades or with friction saw discs with a circular saw blade for cutting tubes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D47/00—Sawing machines or sawing devices working with circular saw blades, characterised only by constructional features of particular parts
    • B23D47/04—Sawing machines or sawing devices working with circular saw blades, characterised only by constructional features of particular parts of devices for feeding, positioning, clamping, or rotating work
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D47/00—Sawing machines or sawing devices working with circular saw blades, characterised only by constructional features of particular parts
    • B23D47/12—Sawing machines or sawing devices working with circular saw blades, characterised only by constructional features of particular parts of drives for circular saw blades
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D59/00—Accessories specially designed for sawing machines or sawing devices

Definitions

  • the invention relates to the field of aerospace technology, in particular to a digital control system, method and equipment for aerospace catheter margin removal.
  • Rocket guide tube is a kind of precision tube parts. The length of the end is required to be very precise when cutting. Rocket guide tube usually has a very thin tube wall. In the range of 0.5-2.0mm, the length of the straight section remaining at both ends of many catheters is only 25mm, which brings many difficulties to reliable clamping during cutting. In addition, the rocket guide has high technical requirements for clamping deformation and depression. In particular, the rocket catheter also has the characteristics of many specifications, many varieties, and small batches.
  • the purpose of the present invention is to provide a digital control system, method and equipment for aerospace catheter margin removal, which adopts a digital controller to uniformly control each device and realizes the rapid and accurate excess process margin at the end of the catheter Cutting process.
  • a digital control equipment for aerospace duct allowance removal comprising a fuselage.
  • the fuselage is equipped with an angle adjustment device, a cutting device, a duct clamping device and a carriage mechanism.
  • the carriage mechanism is equipped with a positioning device and a flat opening device , The positioning device and the flat mouth device are arranged one behind the other, the carriage mechanism and the pipe clamping device are arranged on the left and the right.
  • the cutting device feeds the knife back and forth, the positioning device and the flat mouth device feed left and right;
  • the positioning device includes a positioning driver for driving the positioning block to move, and
  • the catheter clamping device includes a clamping motor for driving the clamping seat to clamp the catheter,
  • the cutting device includes a cutting motor and a feed motor.
  • the flat opening device includes a flat opening motor.
  • the carriage mechanism includes a feeding motor for driving the positioning device and the flat opening device to feed, and a conversion motor for converting the positioning device and the flat opening device processing position.
  • the drive, clamping motor, cutting motor, feed motor, flat end motor, feed motor and conversion motor are all controlled by a digital controller.
  • the digital controller is a PLC controller or a CNC controller; the digital controller is connected with a touch screen and a console.
  • the catheter holding device includes a first holding seat, a second holding seat, a third holding seat, a fourth holding seat, and a holding device base.
  • the first holding seat and the second holding seat are front and back.
  • the third clamping seat and the fourth clamping seat are arranged opposite to each other on the clamping device base and the two front and rear cooperate to clamp the catheter.
  • the first The clamping seat and the third clamping seat are spaced left and right
  • the second clamping seat and the fourth clamping seat are spaced left and right
  • the third clamping seat and the fourth clamping seat are located at the base of the clamping device near the waste chute.
  • the clamping device base is provided with a waste landslide between the third clamping seat and the fourth clamping seat.
  • the first clamping seat is fixed on the clamping device base, and the second clamping seat passes through the clamp.
  • the holding motor is driven to slide back and forth on the base of the holding device.
  • the third holding base slides back and forth on the base of the holding device through the first holding cylinder.
  • the moving end of the first holding air cylinder is hinged to the third holding base.
  • the fourth clamping base is driven by the second clamping cylinder to slide back and forth on the base of the clamping device, the moving end of the second clamping cylinder is hinged with the fourth clamping base, and the cutting device is in the second clamping base and Cutting is carried out between the fourth clamping seat.
  • the first clamping seat, the second clamping seat, the third clamping seat, and the fourth clamping seat are all equipped with clamp blocks for contacting and clamping the catheter.
  • the clamp blocks are in a semi-annular shape, and the clamp blocks
  • the inside surface of the clamp block is a semicircular clamping groove.
  • the two clamp blocks opposite to each other form a clamping hole for accommodating the straight section of the end of the pipe.
  • the outside surface of the clamp block is formed with positioning protrusions.
  • the clamping The seat is provided with a fixing slot matched with the positioning protrusion of the clamp block.
  • the base of the clamping device is installed on the workbench through a rotating shaft and can rotate.
  • the axis of the straight section of the tube end of the catheter is in line with the axis of the rotating shaft.
  • the axis intersects and the intersection point is located on the cutting surface of the cutting device;
  • the rotating shaft is in transmission connection with an angle encoder, and the angle encoder is connected with a digital controller.
  • the angle adjusting device includes a gear which meshes and transmits with an arc tooth provided on one side of the base of the clamping device, and the gear is driven to rotate by a rotation driving device.
  • the arc tooth is in a circular arc shape and the circular arc
  • the center of the circle is located on the axis of the rotating shaft;
  • the rotating drive device is a hand wheel or a motor;
  • an outer ring is also provided between the clamping device base and the worktable, and the outer ring is located outside the rotating shaft and is fastened
  • the parts are fixed on the worktable to assist in supporting the base of the clamping device.
  • Rolling supports or smooth wear-resistant parts are provided between the outer ring and the base of the clamping device to facilitate the rotation of the clamping device base;
  • the outer ring is provided with an arc-shaped limit slot, and the clamping device base is equipped with a limit column that can be inserted into the arc-shaped limit slot and is limited in movement; a limit clamp is fixed on the worktable of the fuselage A limit block that holds the rotation range of the base of the device.
  • the cutting device includes a cutting device base, a cutting motor, a head reduction box, a cutting saw blade, and a feed motor.
  • the cutting device base is fixed on the body, and the head reduction box is connected to the cutting device base through a slide rail.
  • the base is slidably connected and moved forward and backward by the feed motor.
  • a cutting saw blade is arranged on one side of the reduction box of the machine head.
  • the cutting motor drives the cutting saw blade to cut after the reduction mechanism; the cutting saw blades are circular saw blades and saw blades. , Blade or wire saw; both the cutting motor and the feed motor are servo motors, and a servo encoder is installed on the servo motor; the feed path of the cutting saw blade is inclined downward cutting.
  • the carriage mechanism includes a Y-direction carriage and an X-direction carriage.
  • the X-direction carriage is slidably connected to the left and right sides of the fuselage and is driven to move and feed by a feed motor.
  • the Y-direction carriage and the X-direction carriage slide back and forth.
  • the Y-direction carriage is equipped with a positioning device and a flat mouth device.
  • the positioning device and the flat mouth device are adjacent to each other.
  • the clamping tube position of the clamping device corresponds; the positioning device includes a positioning device base, a positioning block, and a positioning driver.
  • the positioning device base is fixed on the Y-direction carriage, and the positioning block is slidably connected to the positioning device base.
  • the positioning drive is driven to move and feed;
  • the positioning drive is a servo electric cylinder or a hydraulic cylinder controlled by a servo proportional valve;
  • the positioning surface of the positioning block is a positioning disk surface that can contact the entire end surface of the pipe, or a straight positioning
  • the flat mouth device includes a flat mouth device base, a flat mouth motor, and a tool turntable, the flat mouth device base is fixed on the Y carriage, the tool turntable is installed on the flat mouth device base and is driven to rotate by the flat mouth motor, and the tool turntable is on A number of flat cutting tools are installed, and when the tool turntable rotates, the flat cutting tools are driven to rotate to form a flat processing surface.
  • An aerospace catheter margin removal digital control system adopts the above-mentioned aerospace catheter margin removal digital control device.
  • a digital control method for aerospace catheter margin removal using the above-mentioned digital control device for aerospace catheter margin removal, including the following steps:
  • the third clamping seat and the fourth clamping seat clamp the waste section of the catheter, the first clamping seat and the second Second, the clamping seat clamps the reserved section of the catheter, and the positioning block is reset;
  • the present invention adopts the above technical scheme and adopts a digital controller to uniformly control each device.
  • the operator inputs and sets various process parameters according to various processing needs.
  • the equipment automatically executes various process parameters to realize the catheter
  • the excess process margin at the end can be cut and processed quickly and accurately.
  • the supporting and circular saw blade cold cutting process, the supporting digital controller realizes digital control.
  • Figure 1 is a schematic diagram of the structure of the device of the present invention.
  • Figure 2 is a schematic diagram of the cooperative structure of each mechanism of the present invention.
  • FIG. 3 is one of the structural schematic diagrams of the catheter clamping device of the present invention.
  • Figure 4 is the second structural diagram of the catheter clamping device of the present invention.
  • Figure 5 is a top view of the catheter clamping device of the present invention.
  • Figure 6 is a cross-sectional view of Figure 5 A-A;
  • Figure 7 is one of the structural schematic diagrams of the catheter clamping device and the angle adjusting device of the present invention.
  • Figure 8 is the second structural diagram of the catheter clamping device and the angle adjusting device of the present invention.
  • Figure 9 is a schematic structural view of another embodiment of the catheter clamping device of the present invention.
  • Figure 10 is a schematic diagram of the clamp installation structure in the catheter clamping device of the present invention.
  • Figure 11 is a schematic diagram of the structure of the clamp of the present invention.
  • Figure 12 is a schematic diagram of the structure of the cutting device of the present invention.
  • Figure 13 is a structural diagram of the positioning device and the flat mouth device of the present invention.
  • FIG. 14 is a schematic diagram of digital positioning implemented by the positioning device of the present invention.
  • Figure 15 is a top view of the device of the present invention (without adjusting the angle);
  • Figure 16 is a schematic diagram of the equipment of the present invention for flat mouth processing
  • Figure 17 is a plan view of the equipment of the present invention performing horseshoe flat mouth processing
  • Flat mouth device 71. Flat mouth device base; 72. Flat mouth motor; 73. Tool turntable; 74 , Flat cutter; 8. Cutting device; 801, cutting device base; 802, cutting motor; 803, head gear box; 804, cutting saw blade; 805, screw rod; 806, feed motor; 9, catheter clamping Device; 901, first clamping base; 902, second clamping base; 903, third clamping base; 904, fourth clamping base, 905, first clamping cylinder, 906, clamping device base; 907, second clamping cylinder; 908, clamping motor; 909, first connecting rod; 910, second connecting rod; 911, curved teeth; 912, angle encoder; 913, rotating shaft; 914, plane bearing; 915 , Waste landslide; 916, the third clamping cylinder; 917, the positioning groove of the clamping seat; 918, the arc groove; 919, the limit block.
  • first and second are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features defined with “first” and “second” may explicitly or implicitly include one or more of these features.
  • “plurality” means two or more, unless otherwise clearly defined.
  • the terms “installed”, “connected”, “connected”, “fixed” and other terms should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. , Or integrally connected; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication between two components.
  • installed can be a fixed connection or a detachable connection.
  • integrally connected it can be a mechanical connection or an electrical connection
  • it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication between two components.
  • the specific meanings of the above-mentioned terms in the present invention can be understood according to specific situations.
  • the "above” or “below” of the first feature of the second feature may include direct contact between the first and second features, or may include the first and second features Not in direct contact but through other features between them.
  • “above”, “above” and “above” the second feature of the first feature include the first feature being directly above and obliquely above the second feature, or merely indicating that the level of the first feature is higher than that of the second feature.
  • the “below”, “below” and “below” of the second feature of the first feature include the first feature directly below and obliquely below the second feature, or it simply means that the level of the first feature is smaller than the second feature.
  • a duct allowance removal equipment as shown in Fig. 1 and Fig. 2 is used for cutting and flat-end machining of engine ducts in the aerospace field. It includes a fuselage 2 on which an angle adjustment device 3, The cutting device 8, the catheter clamping device 9 and the carriage mechanism 5, the carriage mechanism 5 is equipped with a positioning device 6 and a flat mouth device 7, the positioning device 6 and a flat mouth device 7 are arranged in tandem, the carriage mechanism 5 and the catheter clamp
  • the holding device 9 is arranged on the left and the right, and the fuselage 2 is also provided with a waste chute 21.
  • the waste chute 21 is located between the carriage mechanism 5 and the pipe clamping device 9.
  • the cutting device 8 feeds back and forth, and the waste chute 21
  • the outlet is provided with a waste box 4 for collecting waste materials.
  • the digital controller includes a PLC controller.
  • the PLC controller is set in the electrical cabinet.
  • the PLC controller can also be connected with a touch screen and a console. The operator can input and set each process according to the processing needs. Parameter.
  • the equipment automatically executes each process parameter to realize rapid and accurate cutting and processing of excess process margin at the end of the catheter.
  • the digital controller can also be replaced by a CNC controller.
  • the catheter clamping device is used to reliably clamp the catheter after the end of the catheter is properly positioned, to prevent the catheter from loosening during the cutting process, and to ensure the smooth cutting of the catheter.
  • the catheter holding device 9 is installed on the workbench 22 of the body 2.
  • the catheter holding device 9 includes a first holding seat 901, a second holding seat 902, and a third holding seat.
  • the first clamping seat 901 and the second clamping seat 902 are arranged on the clamping device base 906 front and rear opposite to each other, and they cooperate to clamp the catheter 1 back and forth
  • the third clamping seat 903 and the fourth clamping seat 904 are arranged on the clamping device base 906 front and rear opposite to each other, and they cooperate to clamp the catheter 1 in the front and rear.
  • the second holding seat 902 and the fourth holding seat 904 are spaced apart from each other, the third holding seat 903 and the fourth holding seat 904 are located on the side of the holding device base 906 close to the waste chute 21, the holding device
  • the base 906 is provided with a waste landslide 915 between the third clamping base 903 and the fourth clamping base 904.
  • the first clamping base 901 is fixed on the clamping device base 906, and the second clamping base 902 is clamped
  • the motor 908 is driven to slide back and forth on the clamping device base 906.
  • the third clamping seat 903 is driven to slide back and forth on the clamping device base 906 by the first clamping cylinder 905.
  • the moving end of the first clamping cylinder 905 and the second The three clamping bases 903 are hinged, the fourth clamping base 904 is driven to slide back and forth on the clamping device base 906 by the second clamping cylinder 907, and the moving end of the second clamping cylinder 907 is hinged to the fourth clamping base 904,
  • the cutting device 8 cuts between the first clamping base 901 and the third clamping base 903 (or between the second clamping base 902 and the fourth clamping base 904). In this way, the remaining waste section and the remaining straight section at the end of the catheter are reliably clamped to ensure the stability and processing accuracy of the cutting process.
  • the retained straight section of the end of the catheter is clamped by a dynamic and static clamping seat, and the fixed first clamping seat is used as a positioning reference, which can accurately locate the clamping position of the catheter on the base of the clamping device, and the rest of the end of the catheter
  • Two clamping cylinders are used to drive and clamp the waste material section, which is fast and convenient, and has good flexibility and adaptability.
  • the clamping motor 908 is connected to the second clamping base 902 through the first connecting rod 909 and the second connecting rod 910, and the moving end of the clamping motor 908 is connected to the first connecting rod.
  • One end of the 909 is hinged, the other end of the first link 909 is hinged with the clamping device base 906, one end of the second link 910 is hinged with the moving end of the clamping motor 908, and the other end of the second link 910 is hinged with the second
  • the clamping base 902 is hinged.
  • the clamping motor pushes and locks the second clamping seat through the double link structure, not only can realize the clamping and/or pre-clamping of the catheter, but also the clamping is stable and reliable.
  • the moving ends of the first connecting rod 909, the second connecting rod 910, and the clamping motor 908 share a hinge axis to further ensure reliable clamping and locking and convenient assembly.
  • the clamping motor 908 is preferably a servo electric cylinder, so that the digital controller can control the moving speed and moving position of the servo electric cylinder according to the catheters of different specifications and materials and the clamping contact area, so as to ensure that the clamping force is not correct to damage the catheter and the clamping Maintain stable and reliable.
  • the clamping motor 908 can also be replaced by an air cylinder to realize rapid pipe replacement.
  • the cylinder of the third clamping cylinder 916 is hinged with the clamping device base 906, and the third clamping cylinder The moving ends of 916 are respectively hinged with the first connecting rod 909 and the second connecting rod 910.
  • the moving end of the clamping motor 908 or the third clamping cylinder 916 is inclined downward to implement the clamping pipe.
  • the upper end of the first connecting rod 909 and the clamping motor 908 or the third clamping cylinder 916 move The lower end of the first link 909 is hinged with the clamping device base 906, the upper end of the second link 910 is hinged with the second clamping base 902, and the lower end of the second link 910 is hinged with the clamping motor 908 or third
  • the moving end of the clamping cylinder 916 is hinged.
  • Such a locking structure has a greater locking force to ensure a stable clamping, and the loosening and clamping actions can be adjusted quickly and flexibly.
  • the first clamping seat 901, the second clamping seat 902, the third clamping seat 903, and the fourth clamping seat 904 are all equipped with contact clamps.
  • the clamp block for tightening the catheter 1 the clamp block is semi-circular, the inner side of the clamp block is a semicircular clamping groove, and the two front and rear clamp blocks cooperate to form a clamping hole 1013 for accommodating the straight section of the end of the catheter 1.
  • a positioning protrusion is formed on the outer surface of the clamp block, and correspondingly, a fixing slot matching the positioning protrusion of the clamp block is provided on the clamping seat.
  • first clamp block 101 is fixed on the first clamping base 901
  • second clamp block 102 is fixed on the second clamping base 902
  • third clamp block 103 is fixed on the third clamping base 903.
  • the fourth clamp block 104 is fixed on the fourth clamp base 904, and the four clamp blocks have the same structure.
  • the positioning protrusion is a circular arc protrusion 1012.
  • the fixing groove is a circular arc groove 918
  • a clamp positioning groove 1011 is provided on the clamp block to clamp
  • the seat is provided with a clamping base positioning groove 917 communicating with the clamping base positioning groove 1011, and the locking member 105 passes through the clamp positioning groove 1011 and the clamping base positioning groove 917 and is locked and fixed on the clamping base by fasteners.
  • a uniform outer arc positioning and installation datum is set on the clamping seat, which is semicircular, and the outer arc of the clamp block is installed on this datum.
  • the inner arc of the clamp block is designed according to the outer diameter specification of the catheter.
  • the unified installation of a variety of catheter clamping fixtures is realized.
  • the semi-circular arc structure has good centering accuracy, which helps to improve the processing accuracy, and only one locking piece can accurately locate and lock the fixed fixture Block, convenient and quick to install and disassemble, can realize multi-specification and small-batch rocket tube end margin removal and quick type change.
  • the positioning protrusion and the fixing slot used as a positioning and installation reference can also be designed into special shapes such as an ellipse, a rectangle, and a square.
  • the clamp positioning groove 1011 is provided under the upper or lower end surface of the clamping side of the clamp block.
  • the clamping seat positioning groove 917 is also provided on the upper or lower end surface of the clamping side of the clamp block.
  • the clamp positioning groove 1011 and the clamping seat positioning groove 917 have the same dovetail cross section.
  • the clamping device base 906 is installed on the worktable 22 through the rotating shaft 913 and can rotate. After the first clamping seat 901 and the second clamping seat 902 clamp the catheter 1, the The axis of the straight section of the pipe end intersects the axis of the rotating shaft 913 and the intersection point is located on the cutting surface of the cutting device 8. In this way, not only can the horseshoe mouth cutting processing and horseshoe mouth flat processing of the catheter tube end be realized, but also the rapid and accurate positioning of the catheter tube end can be facilitated, and high positioning accuracy, cutting processing accuracy and flat processing accuracy can be ensured.
  • the clamping device base 906 is supported on the worktable 22 by a plane bearing 914 and is centered and rotated by a rotating shaft 913.
  • the upper end of the rotating shaft 913 is inserted into the bottom of the clamping device base 906.
  • the lower part of the rotating shaft 913 is meshed and driven with the angle encoder 912 installed on the worktable 22 through a gear.
  • the angle rotation information of the clamping device base 906 can be transmitted to the digital controller through the angle encoder 912, and the adjustment angle of the "horsehoe" can be directly displayed on the operating screen through numerical values, which is convenient for the operator to manipulate.
  • the angle adjustment device 3 includes a gear 302 that meshes with the arc-shaped tooth 911 provided on the side of the clamping device base 906, and the gear 302 is driven by the rotation drive device.
  • the arc-shaped tooth 911 has a circular arc shape and the center of the circular arc is located on the axis of the rotating shaft 913.
  • the arc-shaped tooth 911 is an arc-shaped rack fixed on the base 906 of the clamping device.
  • the rotation driving device is a hand wheel 301.
  • the gear 302 is fixed or integrally formed on the gear shaft 303.
  • a worm gear 304 is fixed on the gear shaft 303.
  • the worm gear 304 meshes with the worm 306 for transmission.
  • the hand wheel 301 drives the worm 306 to rotate to drive the gear 302.
  • Rotating the clamping device base 906, an indicator disk 305 for indicating the rotation angle is installed on the worktable 22.
  • the rotation driving device may also be a motor, which may be connected to the above-mentioned worm, or it may be connected to the gear 302 or the shaft 913 through a reduction mechanism.
  • the motor may be a stepper motor, a servo motor, or a self-driving motor. Motor with deceleration mechanism.
  • the angle encoder 912 may also be connected to the rotating shaft 913 via a universal joint.
  • the device is adjusted along the horizontal plane when the angle is adjusted. After adjustment, it has a locking function. After the horizontal direction angle is adjusted properly, it will be locked without affecting the angle changes in other directions. The amount of angle adjustment in the horizontal direction will be displayed on the control screen in real time, which is convenient for the operator to grasp.
  • an outer ring 23 is further provided between the clamping device base 906 and the worktable 22.
  • the outer ring 23 is located on the outside of the rotating shaft 913 and is fixed on the worktable 22 by fasteners for To assist in supporting the clamping device base 906, a rolling support (such as a ball roller) or a smooth wear-resistant member is provided between the outer ring 23 and the clamping device base 906 to facilitate the rotation of the clamping device base 906.
  • a rolling support such as a ball roller
  • a smooth wear-resistant member is provided between the outer ring 23 and the clamping device base 906 to facilitate the rotation of the clamping device base 906.
  • an arc-shaped limiting groove 231 is provided on the outer ring 23, and a limiting post capable of being inserted into the arc-shaped limiting groove 231 and restricted in movement is provided on the clamping device base 906.
  • a limit block 919 can also be fixed on the worktable 22 to limit the rotation range of the clamping device base 906.
  • the cutting device 8 After receiving the processing process parameters such as saw blade speed and feed speed from the digital controller, the cutting device realizes accurate movement according to the requirements of each process parameter to ensure that the catheter obtains the best process parameters during cutting.
  • the cutting device 8 includes a cutting device base 801, a cutting motor 802, a head gear box 803, a cutting saw blade 804, and a knife feed motor 806.
  • the cutting device base 801 is fixed on the body 2 and the head
  • the reduction box 803 is slidably connected to the cutting device base 801 through a slide rail and is driven by the feed motor 806 to move forward and backward to feed the knife.
  • a cutting saw blade 804 is set on one side of the head reduction box 803, and the cutting motor 802 drives the cutting saw after the reduction mechanism.
  • the slice 804 is cut.
  • the cutting saw blade 804 is a circular saw blade. In other embodiments, the cutting saw blade 804 may also be a cutting tool such as a saw blade, a blade, or a wire saw.
  • the feed motor 806 is a servo motor, which drives the head gear box 803 to move through the screw 805. In a preferred embodiment, the cutting motor 802 and the knife feed motor 806 are both servo motors, and a servo encoder is installed on the servo motor, so that the digital controller can accurately control the knife feed speed, knife position and cutting according to the specifications of the catheter material. Rotation speed and so on.
  • the preferred embodiment is that the rotating shaft on the base 906 of the clamping device
  • the axis of 913 is located on the cutting surface of the cutting blade 804, and the cutting surface refers to the plane of the catheter cut after the cutting is completed.
  • the flat-cut processing surface of the flat-cut device 7 is parallel to the cutting surface of the cutting device 8, or in other words, the feed path of the cutting saw blade 804 is perpendicular to the feed path of the flat-cut tool.
  • the cutting saw blade 804 has an inclined cutting path along the cutting edge, so that it is misplaced with the catheter clamping device 9 to prevent the two devices from interfering with each other, and helps reduce cutting vibration to clamp the catheter clamping device 9
  • the influence of the catheter 1 ensures the cutting accuracy.
  • the carriage mechanism 5 includes a Y-direction carriage 53 and an X-direction carriage 54.
  • the X-direction carriage 54 is slidably connected to the body 2 left and right and is driven by a feed motor 51 to move and feed.
  • the carriage 53 and the X carriage 54 are slidably connected forwards and backwards and are driven by the conversion motor 52 to move forward and backward.
  • the Y carriage 53 is equipped with a positioning device 6 and a flat mouth device 7, and the positioning device 6 and the flat mouth device 7 are adjacent to each other, and When the Y-direction carriage 53 moves back and forth, the positioning device 6 and the flat mouth device 7 can respectively correspond to the positions of the catheter clamping device 9 for clamping the catheter 1.
  • the positioning device 6 After receiving the positioning parameters from the digital controller, the positioning device's servo motor drives the positioning device to perform positioning according to the positioning parameters, and realizes the digital control of the catheter end length positioning with accuracy.
  • the positioning device 6 includes a positioning device base 63, a positioning block 64, and a positioning driver 61.
  • the positioning device base 63 is fixed on the Y-direction carriage 53, and the positioning block 64 is connected to the positioning device base.
  • 63 is slidably connected to the left and right and is driven by the positioning driver 61 to move and feed.
  • the positioning driver 61 is a servo electric cylinder, and the positioning block 64 is fixed on the moving end of the servo electric cylinder.
  • the cutting surface of the knife is parallel to the flat processing surface of the flat mouth device 7, so that the digital controller can accurately control the stay position of the positioning block 64, and the moving position of the positioning block 64 can also be displayed on the control screen in real time for easy operation Master.
  • the positioning driver 61 may also be a hydraulic cylinder controlled by a servo proportional valve.
  • the positioning block 64 is slidably connected to the positioning device base 63 through the guide rod 62, so that the cooperation of the guide rod 62 and the piston rod of the servo electric cylinder increases the positioning stability of the positioning block 64.
  • the positioning surface of the positioning block 64 can be a positioning disc surface that can contact the entire end surface of the catheter, or a straight-shaped positioning surface, that is, the surface contacting the catheter can be designed as a straight-shaped circular plane as required.
  • the shape of the knife edge reduces the contact area with the catheter.
  • the flat-mouth device 7 includes a flat-mouth device base 71, a flat-mouth motor 72, and a tool turntable 73.
  • the flat-mouth device base 71 is fixed on the Y-direction carriage 53, and the tool turntable 73 is installed on the flat-mouth device base 71. It is driven to rotate by a flat-cut motor 72.
  • a number of flat-cut cutters 74 are installed on the tool turntable 73. When the tool turntable 73 rotates, the flat-cut cutter 74 is rotated to form a flat-cut processing surface.
  • the flat-cut processing surface is parallel to the cutting surface of the cutting device 8. It is parallel to the positioning surface of the positioning device 6.
  • the flat mouth device 7 is driven by the feeding motor 51 to implement feeding; the positioning device 6 can be driven by the feeding motor 51 to implement feeding, or the positioning driver 61 can implement feeding, or it can be implemented by a hybrid drive of the two. Feed.
  • a wire brush can also be provided to clean the catheter port to make it smoother and smoother and improve the welding quality.
  • the catheter excess removal method of the above catheter excess removal equipment includes the following steps:
  • the cutting device 8 cuts, and the cutting saw blade 804 enters between the second clamping seat 902 and the fourth clamping seat 904 to cut off the excess of the catheter 1;
  • the elbow measurement and margin positioning method disclosed in the patent document 108074277A includes the following steps: with the aid of a laser tracker and a target for multi-sensor global calibration, the multi-sensor coordinate system is transferred to the global coordinate system; multiple sensors are strictly synchronized to collect the bending Tube image, edge detection and morphological refinement to obtain the centerline of the bent pipe, and use the bidirectional polar line matching algorithm to reconstruct the centerline in three dimensions; discretize the centerline into a spatial point cloud, and calculate the control points, the end points of the straight line and the arc segment Use the center line as the guide line for the three-dimensional modeling of the arc center point; finally, use the nearest point iteration method to match the design model and the measurement model, calculate the margin position, and obtain the margin positioning parameters.
  • the catheter 1 is transferred by a robot, a manipulator, or manually.
  • the method for cutting a horseshoe by the above-mentioned catheter margin removal equipment includes the following steps:
  • the end of the catheter 1 is pressed against the positioning surface of the positioning block 64, and the catheter 1 is clamped and fixed by the catheter clamping device 9.
  • the third clamping seat 903 and the fourth clamping seat 904 clamp the waste section of the catheter 1.
  • the first clamping seat 901 and the second clamping seat 902 clamp the reserved section of the catheter 1, and the positioning block 64 is reset;
  • the cutting device 8 advances cutting, and the cutting saw blade 804 enters between the second clamping seat 902 and the fourth clamping seat 904 to cut off the remaining amount of the catheter 1;
  • the angle of rotation of the pipe 1 to be processed along the axis of the straight section of the pipe end can be adjusted by manual marking or positioning or manipulators/robots, so as to ensure that the equipment only needs to process the horseshoe mouth of the pipe end of the pipe 1. Just adjust the horizontal deflection angle of the catheter 1.
  • a pipe cutting equipment includes a body 2.
  • the body 2 is equipped with an angle adjustment device 3, a cutting device 8, a pipe clamping device 9 and a carriage mechanism 5.
  • the carriage mechanism 5 is equipped with a positioning device 6 and a positioning device 6 and the catheter clamping device 9 are arranged opposite to each other, and the cutting device 8 feeds forward and backward.
  • the only difference from the first embodiment is that the flat mouth device 7 is not provided, and only the catheter cutting function is implemented.
  • the position arrangement, specific structure and various implementations of each device are the same as those of the first embodiment.
  • the cutting method of the above-mentioned pipe cutting equipment includes the following steps:
  • the positioning driver 61 and/or the feed motor 51 drive the positioning block 64 to the designated position according to the positioning parameters of the catheter 1 to be cut;
  • the end of the catheter 1 is pressed against the positioning surface of the positioning block 64, and the catheter 1 is clamped and fixed by the catheter clamping device 9.
  • the third clamping seat 903 and the fourth clamping seat 904 clamp one side of the catheter 1.
  • a clamping seat 901 and a second clamping seat 902 clamp the other side of the catheter 1, and the positioning block 64 is reset;
  • the method for cutting horseshoes with the above-mentioned pipe cutting equipment includes the following steps:
  • the positioning driver 61 and/or the feed motor 51 drive the positioning block 64 to the designated position according to the positioning parameters of the catheter 1 to be cut;
  • the end of the catheter 1 is pressed against the positioning surface of the positioning block 64, and the catheter 1 is clamped and fixed by the catheter clamping device 9.
  • the third clamping seat 903 and the fourth clamping seat 904 clamp one side of the catheter 1.
  • a clamping seat 901 and a second clamping seat 902 clamp the other side of the catheter 1, and the positioning block 64 is reset;
  • the cutting device 8 feeds, and the cutting saw blade 804 enters between the second clamping seat 902 and the fourth clamping seat 904 to cut the catheter 1;
  • a pipe flat mouth equipment comprising a body 2, an angle adjusting device 3, a pipe clamping device 9 and a carriage mechanism 5 are installed on the body 2, a positioning device 6 and a flat mouth device 7, and a positioning device are installed on the carriage mechanism 5 6 and the catheter clamping device 9 are arranged opposite to each other, and the flat mouth device 7 moves left and right to feed the knife.
  • the only difference from the first embodiment is that the cutting device 8 is not provided, and only the flat-end processing of the end surface of the catheter nozzle is performed.
  • the flat-end processing method of the above-mentioned pipe flat-end equipment includes the following steps:
  • the positioning driver 61 and/or the feed motor 51 drive the positioning block 64 to the designated position according to the positioning parameters of the pipe 1 to be processed;
  • the conversion motor 52 drives the Y-carriage 53 to move the flat mouth device 7 to the processing position, the flat mouth motor 72 drives the tool turntable 73 to rotate, and the feed motor 51 drives the flat mouth device 7 to feed and flatten the end surface of the pipe 1 nozzle;
  • the method for processing horseshoe mouth with the above-mentioned pipe fitting flat mouth equipment includes the following steps:
  • the positioning driver 61 and/or the feed motor 51 drive the positioning block 64 to the designated position according to the positioning parameters of the pipe 1 to be processed;
  • the conversion motor 52 drives the Y-direction carriage 53 to move the flat mouth device 7 to the processing position, and the feed motor 51 drives the flat mouth device 7 to feed to flatten the end surface of the horseshoe mouth of the catheter 1;

Abstract

L'invention concerne un système, un procédé et un appareil de commande numérique de découpe de surcote d'usinage de conduit aérospatial, le système comprenant un dispositif de réglage d'angle (3), un dispositif de découpe (8), un dispositif de serrage de conduit (9), un mécanisme de chariot (5), un dispositif de positionnement (6) et un dispositif de nivellement d'ouverture (7). Le dispositif de découpe (8) alimente une lame vers l'avant et vers l'arrière, le dispositif de positionnement (6) et le dispositif de nivellement d'ouverture (7) l'alimentent vers la gauche et vers la droite, le dispositif de positionnement (6) comprend une commande de positionnement (61) utilisée pour commander le déplacement d'un bloc de positionnement (64), le dispositif de serrage de conduit (9) comprend un moteur électrique de serrage (908) utilisé pour commander le serrage d'un conduit par un siège de serrage, le dispositif de découpe (8) comprend un moteur électrique de découpe (802) et un moteur électrique d'alimentation de lame (806), le dispositif de nivellement d'ouverture (7) comprend un moteur électrique de nivellement d'ouverture (72), le mécanisme de chariot (5) comprend un moteur électrique d'alimentation (51) utilisé pour commander l'alimentation du dispositif de positionnement (6) et du dispositif de nivellement d'ouverture (7) et un moteur électrique de conversion (52) utilisé pour convertir des positions d'usinage du dispositif de positionnement (6) et du dispositif de nivellement d'ouverture (7), et tous les dispositifs sont commandés par un contrôleur numérique. Le contrôleur numérique est utilisé pour commander tous les dispositifs d'une manière unifiée, ce qui permet d'obtenir un usinage de découpe rapide et précis de la surcote d'usinage à une extrémité d'un conduit.
PCT/CN2020/102037 2020-06-12 2020-07-15 Système, procédé et appareil de commande numérique de découpe de surcote d'usinage de conduit aérospatial WO2021248623A1 (fr)

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