CN214769189U

CN214769189U - Large-modulus screw gantry numerical control cyclone milling machine

Info

Publication number: CN214769189U
Application number: CN202121157527.7U
Authority: CN
Inventors: 吴彬; 佟静; 连碧华; 徐磊
Original assignee: Nanjing Institute of Mechatronic Technology
Current assignee: Nanjing Institute of Mechatronic Technology
Priority date: 2021-05-27
Filing date: 2021-05-27
Publication date: 2021-11-19
Anticipated expiration: 2031-05-27

Abstract

The utility model provides a special numerically controlled fraise machine for milling large modulus screw, which is specially designed for milling of special-shaped screws such as reducing, variable pitch, large lead, variable tooth type and the like used on a screw pile driver and a large plastic extruding machine, the machine tool adopts a gantry type whirlwind milling method, and sequentially comprises a feeding system, a positioning unit, a gantry milling system and a discharging platform from left to right, the gantry milling system comprises three screw milling cutters, and a cutter head inclined clamping groove is designed for each milling cutter in one-to-one correspondence, each milling cutter can freely move in three directions, namely horizontal movement, vertical movement and up-and-down swinging (left-and-right swinging of the vertical milling cutter and up-and-down swinging of the side milling cutter), so that the horizontal position and the vertical position of the cutter head of the milling cutter are adjusted according to the difference of the diameter of the screw, and the up-and-down swinging of the milling cutter can process thread grooves with different tooth type angles on the screw, is particularly suitable for milling large-modulus single-thread, double-thread and three-thread special-shaped screws with the diameter of 200-500mm and the length of 1000-4000 mm.

Description

Large-modulus screw gantry numerical control cyclone milling machine

Technical Field

The utility model relates to a digit control machine tool especially relates to a big modulus screw rod longmen numerical control whirlwind milling machine.

Background

The screw rod is a cylinder with a rectangular spiral groove or a conical spiral groove cut on the outer surface, is tensile, bending-resistant and anti-fatigue, has high hardness, wear resistance and good toughness, and is widely distributed in various industries such as machinery, petroleum, electric power, building materials, ships and the like. Because the large-modulus screws are all longer and have higher processing difficulty, the rational processing of the screws is also important. The existing screw milling technology mainly comprises the following steps: the machining of the forming milling cutter is low in machining efficiency, the machining of the cyclone milling cutter disc is high in machining efficiency, but for the milling machining of the special-shaped screws with the variable diameter, the variable distance, the large lead, the tooth-changing type and the like, particularly the machining of the special-shaped screws with the diameters of 500mm, the lengths of 1000 mm and 4000mm, the variable diameter, the variable distance, the large lead, the tooth-changing type and the like used on a spiral pile driver and a large plastic extruding machine, different machining procedures are realized by repeated tool setting and repeated clamping on different machine tools, so that the efficiency is low, and the precision cannot be guaranteed.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems, the utility model provides a special numerically controlled fraise machine for milling large modulus screw, which is specially designed for milling special-shaped screws such as screw pile driver, variable diameter, variable pitch, large lead, variable tooth type and the like used on large plastic extruding machine, the machine tool adopts a gantry type whirlwind milling method, the gantry milling system has three screw milling cutters, and a cutter head inclined clamping groove is designed for each milling cutter in a one-to-one correspondence way, each milling cutter can freely move in three directions, namely horizontal movement, vertical movement and up-and-down swinging (vertical milling cutter left-and-right swinging, side milling cutter up-and-down swinging), the horizontal position and the vertical position of the milling cutter are adjusted according to the difference of screw diameters, the up-and-down swinging of the milling cutter head can process thread grooves with different tooth type angles on the screw, the special numerical controlled fraise machine is particularly suitable for milling diameters at 200-500mm, the length of the large-modulus single-thread, double-thread and three-thread special-shaped screw is 1000-4000 mm.

For this purpose, the utility model provides a big modulus screw rod longmen numerical control whirlwind milling machine from left to right includes feed system, positioning unit, longmen milling system and ejection of compact platform in proper order, feed system includes propelling movement platform guide rail, mainframe box, material loading clamp support, mobile station, material loading clamp positioning chuck, chuck propelling movement motor, propelling movement platform lead screw, screw rod blank support, mainframe box propelling movement motor, mainframe box propelling movement reducing gear box, screw rod blank rotating electrical machines, screw rod blank screw up guide arm, propelling movement platform support frame, propelling movement platform, lead screw support, propelling movement platform support frame is at least three, supports respectively propelling movement platform front end, middle-end and rear end, propelling movement platform lead screw one end is connected lead screw support, and the other end passes mainframe box propelling movement reducing gear box heel the mainframe box propelling movement motor is connected, mainframe box propelling movement reducing gear box, The screw rod support is positioned on one side of the pushing table, the guide rail of the pushing table is arranged on the upper surface of the pushing table, the mainframe box is arranged on the upper surface of the pushing reduction gearbox of the mainframe box and can move left and right along the guide rail of the pushing table, the feeding clamping support is arranged on the right side of the mainframe box, the mobile station is positioned between the feeding clamping support and the feeding clamping positioning chuck, so that the feeding clamping positioning chuck can move left and right below the feeding clamping support, the screw rod blank is clamped by the lower part of the feeding clamping positioning chuck, the chuck pushing motor is arranged on the right side of the feeding clamping positioning chuck and used for adjusting the clamping force of the feeding clamping positioning chuck, at least two screw rod blank supports are arranged on the upper surface of the pushing table and positioned on one side of the guide rail of the pushing table, and the screw rod blank is cylindrical, the positioning unit comprises a positioning clamp bracket, a clamp claw, a clamp arm and a hydraulic cylinder, wherein the clamp claw is arranged above the positioning clamp bracket, the hydraulic cylinder is positioned at one side of the positioning clamp bracket and used for controlling the clamping force of the clamp claw, the gantry milling system comprises a gantry base, two side milling cutter vertical guide rails, two side milling cutter processing assemblies, a vertical milling cutter horizontal guide rail, a vertical milling cutter processing assembly, a numerical control system, The horizontal guide rail of the vertical milling cutter comprises a horizontal upper guide rail and a horizontal lower guide rail which are parallel, the two vertical guide rails of the side milling cutter are symmetrically arranged at the left side and the right side of the upper surface of the gantry base, the horizontal lower guide rail is connected with the top ends of the two vertical guide rails of the side milling cutter, the two vertical guide rails of the side milling cutter are respectively arranged on the two vertical guide rails of the side milling cutter in a mirror symmetry manner, so that the processing assembly of the side milling cutter can move up and down on the vertical guide rails of the side milling cutter, the processing assembly of the vertical milling cutter is arranged on the horizontal guide rail of the vertical milling cutter, the processing assembly of the side milling cutter comprises a horizontal guide rail frame of the side milling cutter, a horizontal guide rail of the side milling cutter, a horizontal feed screw of the side milling cutter, a horizontal feed motor, a horizontal feed screw, a horizontal feed motor, a vertical feed motor, a horizontal feed motor, a vertical guide rail, a horizontal feed motor, a vertical guide rail, a horizontal feed motor, a horizontal guide rail, a vertical guide rail, a horizontal guide rail, a side cutter rotation reducer, a side milling cutter rotation motor, a side milling cutter vertical feed screw, a side milling cutter vertical feed motor, a cutter rotation motor mounting rack, a screw milling cutter, a cutter head inclined clamping groove and a milling cutter mounting rack, wherein a side milling cutter horizontal guide rail is arranged on the side milling cutter horizontal guide rail rack, the side milling cutter horizontal guide rail rack is arranged on the side milling cutter vertical guide rail, the side milling cutter horizontal feed motor is arranged outside the side milling cutter horizontal guide rail rack, the side cutter rotation reducer is arranged inside the side milling cutter horizontal guide rail rack, one end of the side milling cutter horizontal feed screw penetrates through the side milling cutter horizontal guide rail rack and is connected with the side milling cutter horizontal feed motor, one end of the side milling cutter horizontal feed screw is connected with one side of the side cutter rotation reducer, the screw milling cutter is arranged on the other side of the side cutter rotation reducer, and with the detachable connection of milling cutter tool mounting bracket, milling cutter tool mounting bracket install in on the side milling cutter horizontal guide rail, cutter rotating electrical machines mounting bracket install in on the milling cutter tool mounting bracket, and be located screw milling cutter top, side milling cutter tool rotating electrical machines install in on the cutter rotating electrical machines mounting bracket, side milling cutter vertical feed motor is fixed in on the horizontal lower guideway, side milling cutter vertical feed lead screw upper end is connected side milling cutter vertical feed motor, and the lower extreme is connected side milling cutter horizontal guide rail frame, tool bit slope draw-in groove is the semicircle type, offers on the milling cutter tool mounting bracket, makes screw milling cutter's tool bit can along arc tilting in the tool bit slope draw-in groove, vertical milling cutter processing subassembly includes vertical milling cutter vertical guide rail frame, vertical milling cutter vertical guide rail, A vertical milling cutter horizontal feeding screw, a vertical milling cutter horizontal feeding motor, a vertical milling cutter rotating speed reducer, a vertical milling cutter rotating motor, a vertical milling cutter vertical feeding screw and a vertical milling cutter vertical feeding motor, wherein the vertical milling cutter horizontal feeding motor is connected to one side of a vertical milling cutter horizontal guide rail, the vertical milling cutter vertical guide rail frame is installed on the vertical milling cutter horizontal guide rail and can move along the vertical milling cutter horizontal guide rail, the vertical milling cutter vertical feeding motor is installed on the upper part of the vertical milling cutter vertical guide rail frame, the vertical milling cutter rotating speed reducer is installed on the vertical milling cutter vertical guide rail frame and is positioned below the vertical milling cutter vertical feeding motor, one end of the vertical milling cutter vertical feeding screw is connected with the vertical milling cutter vertical feeding motor, and the other end of the vertical milling cutter rotating speed reducer is connected with the vertical milling cutter rotating speed reducer, the vertical milling cutter processing component also comprises the milling cutter mounting frame, a cutter rotating motor mounting frame, a screw milling cutter, a cutter head inclined clamping groove, the milling cutter mounting frame is mounted on the vertical milling cutter vertical guide rail frame, the cutter rotating motor mounting frame is mounted on one side of the milling cutter mounting frame, the vertical milling cutter rotating motor is mounted on the cutter rotating motor mounting frame, the screw milling cutter has a downward cutter head, the cutter head inclined clamping groove is in a semi-arc shape and is arranged on the milling cutter mounting frame, so that a cutter head of the screw milling cutter can swing left and right along an arc shape in the cutter head inclined clamping groove, the numerical control system is mounted on the other side of the vertical milling cutter horizontal guide rail and is opposite to the vertical milling cutter horizontal feeding motor, the discharging table comprises a discharging table support, a discharging table top, a discharging roller support and a discharging friction roller, the workpiece outlet table support is arranged below the workpiece outlet table top and used for supporting the workpiece outlet table top, the workpiece outlet roller wheel supports are at least in pairs and are arranged on the upper surface of the workpiece outlet table top at equal intervals, and the workpiece outlet friction rollers are arranged on the workpiece outlet roller wheel supports.

As a further improvement, the gantry base and the two vertical side milling cutter guide rails are integrally formed.

As a further improvement, the outlet friction roller is made of rubber.

As a further improvement, the outgoing friction roller is perpendicular to the axis of the screw blank. A friction roller is made of rubber, the friction roller is perpendicular to the axis of the screw rod and arranged to increase friction force, inertia effect of the part is reduced, and the problem of screw rod processing quality caused by the fact that the speed of the part outlet end is too high is solved.

As the utility model discloses further improve, the positioning unit is two, is located respectively gantry milling system's both sides. The two positioning units are arranged on the workpiece inlet side and the workpiece outlet side, so that the stability of the whole screw blank in the machining process is improved, the phenomenon that the jumping in the milling process influences the thread machining quality is avoided, and the rejection rate of products is reduced.

As another kind of improvement of the utility model, vertical milling cutter processing subassembly with side milling cutter processing subassembly is after 45 jiaos of mirror images, install in on the vertical milling cutter horizontal guide rail, screw rod milling cutter tool bit down, tool bit slope draw-in groove is the semicircle arc type, sets up in on the milling cutter tool mounting bracket, make screw rod milling cutter's tool bit can follow the arc horizontal hunting in the tool bit slope draw-in groove, numerical control system install in vertical milling cutter horizontal guide rail one side.

The large-modulus screw gantry numerical control cyclone milling machine has the following advantages:

1) the utility model discloses a longmen milling system is total three screw rod milling cutter in all, and to the tool bit slope draw-in groove of every milling cutter one-to-one, every milling cutter all can three direction free motion, horizontal motion respectively, vertical motion and luffing motion (vertical milling cutter horizontal hunting, side milling cutter luffing motion), milling cutter level and vertical position are adjusted according to the difference of screw rod diameter, the thread groove of different profile angles on the screw rod can be processed out in the luffing motion of milling cutter tool bit, three independent motion milling cutter can process one and accomplish three-way, the reducing, the screw rod processing of tooth type becomes, compare traditional design many times tool setting processing, machining efficiency is high not only, and can avoid the machining precision problem that the screw rod clamping brought many times, the specially adapted milling diameter is at 200 sand-filled 500mm, length 1000 sand-filled 4000 mm's reducing, the variable pitch, big helical pitch, the big helical pitch length, Deformed screws such as a variable tooth profile;

2) the utility model has the advantages that the screw rod moves axially and rotates circumferentially in the working process, the tool rest is static, and for the large-modulus screw rod with the length of 1000 plus 4000mm, the design can avoid the problem that the processing precision is influenced by the processing shake caused by the overlong length of the screw rod;

3) the feeding system is optimally designed, so that when a blank screw blank is processed, the feeding clamping positioning chuck clamps the left end of the screw blank, the screw blank rotating motor screws a screw blank screwing guide rod into a threaded hole in the end part of the blank screw blank, the feeding clamping chuck is loosened after screwing, the pushing table moves rightwards, the screw blank is driven to rotate by the screw blank screwing guide rod, the positioning unit positions the right end of the screw blank to prevent the screw blank from shaking in the rotating process, and three screw milling cutters mill thread lines on the screw along with the screw blank passing through a planer type milling machine;

4) the screw blank enters a part discharging friction roller of a discharging table through the part discharging side positioning unit, and the part discharging friction roller is made of rubber and is arranged perpendicular to the axis of the screw, so that the friction force is increased, the inertia effect of a part is reduced, and the problem of screw machining quality caused by the fact that the speed of a part discharging end is too high is prevented;

5) the chuck pushing motor, the mainframe box pushing motor, the screw blank rotating motor and the milling cutter feeding motor are all alternating current servo motors, the vertical milling cutter rotating motor and the side milling cutter rotating motor are all variable frequency motors to achieve stepless speed regulation of the cyclone milling head, and variable-groove-shaped screws such as thread pitch change, groove pitch change, rectangle and cone can be machined.

In a word, the large-modulus screw gantry numerical control cyclone milling machine simultaneously carries out optimized design on the structures and the layouts of a feeding system, a positioning unit, a gantry milling system and a discharging table, has strong practicability, and can be used for milling special-shaped screws with the diameters of 200 plus-500 mm and the lengths of 1000 plus-4000 mm, particularly single-line, double-line and three-line screws with the diameters of 200 plus-500 mm and the lengths of 1000 plus-4000 mm, has higher automation degree, reduces the labor intensity of workers, does not need to clamp and replace a cutter for multiple times, can directly process thread grooves with different tooth type angles on a screw blank, simultaneously improves the production efficiency and the processing quality, maintains the stability of the product quality, and has good application prospect.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present application;

FIG. 2 is a schematic diagram of the feed system of FIG. 1;

FIG. 3 is a schematic structural view of the positioning unit of FIG. 1;

FIG. 4 is a schematic structural diagram of the gantry milling system of FIG. 1;

FIG. 5 is a partial schematic view of the gantry milling system of FIG. 1;

FIG. 6 is a schematic structural view of the discharge table of FIG. 1;

name of component

1. The device comprises a feeding system, 1-1 parts of a pushing table guide rail, 1-2 parts of a main case, 1-3 parts of a feeding clamping support, 1-4 parts of a moving table, 1-5 parts of a feeding clamping positioning chuck, 1-6 parts of a chuck pushing motor, 1-7 parts of a pushing table screw rod, 1-8 parts of a screw blank, 1-9 parts of a screw blank support, 1-10 parts of a main case pushing motor, 1-11 parts of a main case pushing reduction gearbox, 1-12 parts of a screw blank rotating motor, 1-13 parts of a screw blank screwing guide rod, 1-14 parts of a pushing table support frame, 1-15 parts of a pushing table, 1-16 parts of a screw rod support, 2 parts of a positioning unit, 2-1 parts of a positioning clamp support, 2-2 parts of a clamping claw, 2-3 parts of a clamping arm, 2-4 parts of a hydraulic cylinder, 3 parts of a clamping arm, and a clamping mechanism, The milling machine comprises a gantry milling processing system, 3-1 parts of a side milling cutter horizontal guide rail bracket, 3-2 parts of a side milling cutter vertical guide rail, 3-3 parts of a side milling cutter horizontal guide rail, 3-4 parts of a side milling cutter horizontal feed screw rod, 3-5 parts of a side milling cutter horizontal feed motor, 3-6 parts of a side cutter rotation speed reducer, 3-7 parts of a side milling cutter rotation motor, 3-8 parts of a side milling cutter vertical feed screw rod, 3-9 parts of a vertical milling cutter horizontal feed motor, 3-10 parts of a side milling cutter vertical feed motor, 3-11 parts of a vertical milling cutter horizontal guide rail, 3-11-1 parts of a horizontal upper guide rail, 3-11-2 parts of a horizontal lower guide rail, 3-12 parts of a vertical milling cutter horizontal feed screw rod, 3-13 parts of a vertical cutter rotation motor, 3-14 parts of a vertical milling cutter, The automatic feeding device comprises a vertical milling cutter, a vertical feeding motor, a vertical feeding lead screw, a vertical milling cutter, a vertical guide rail, a vertical milling cutter rotating speed reducer, a numerical control system, a screw milling cutter, a vertical guide rail support, a cutter rotating motor mounting frame, a cutter head inclined clamping groove, a gantry base, a milling cutter mounting frame, a discharging table, a workpiece discharging table support, a workpiece discharging table surface, a workpiece discharging roller support and a workpiece discharging friction roller, wherein the vertical feeding motor is 3-15, the vertical feeding lead screw is 3-16, the vertical milling cutter rotating speed reducer is 3-17, the numerical control system is 3-18, the screw milling cutter is 3-19, the screw milling cutter is 3-20, the vertical guide rail support is 3-21, the cutter rotating motor mounting frame is 3-22, the cutter inclined clamping groove is 3-23, the gantry base is 3-24, the milling cutter mounting frame is 4, the discharging table support is 4-1, the workpiece discharging table surface is 4-2, the workpiece discharging table surface is 4, and the workpiece discharging friction roller is 4.

Detailed Description

The invention will be described in further detail with reference to the following detailed description and accompanying drawings:

the utility model provides a large modulus screw gantry numerical control cyclone milling machine as shown in figures 1-6, which comprises a feeding system 1, a positioning unit 2, a gantry milling system 3 and a discharging table 4 from left to right in sequence, wherein the feeding system 1 comprises a pushing table guide rail 1-1, a mainframe box 1-2, a feeding clamping support 1-3, a moving table 1-4, a feeding clamping positioning chuck 1-5, a chuck plate pushing motor 1-6, a pushing table screw 1-7, a screw blank 1-8, a screw blank support 1-9, a mainframe box pushing motor 1-10, a mainframe box pushing reduction gearbox 1-11, a screw blank rotating motor 1-12, a screw blank screwing guide rod 1-13, a pushing table support frame 1-14, a pushing table 1-15 and a screw support frame 1-16, the device comprises at least three pushing table supporting frames 1-14, wherein the pushing table supporting frames respectively support the front end, the middle end and the rear end of the pushing table 1-15, one end of a pushing table screw 1-7 is connected with a screw support 1-16, the other end of the pushing table screw passes through a mainframe box pushing reduction gearbox 1-11 and is connected with a mainframe box pushing motor 1-10, the mainframe box pushing reduction gearbox 1-11 and the screw support 1-16 are positioned at one side of the pushing table 1-15, a pushing table guide rail 1-1 is arranged on the upper surface of the pushing table 1-15, a mainframe box 1-2 is arranged on the upper surface of the mainframe box pushing reduction gearbox 1-11 and can move left and right along the pushing table guide rail 1-1, a feeding clamping support 1-3 is arranged at the right side of the mainframe box 1-2, and a moving table 1-4 is positioned on the feeding clamping support 1-3 and a feeding clamping positioning chuck 1-5, so that the feeding clamping positioning chuck 1-5 can move left and right below the feeding clamping support 1-3, the screw blank 1-8 is clamped when the lower part of the feeding clamping positioning chuck 1-5 is fed, the chuck pushing motor 1-6 is installed on the right side of the feeding clamping positioning chuck 1-5 and is used for adjusting the clamping force of the feeding clamping positioning chuck 1-5, at least two screw blank supports 1-9 are installed on the upper surface of the pushing table 1-15 and are positioned on one side of the pushing table guide rail 1-1, the screw blank 1-8 is cylindrical and is arranged on the screw blank support 1-9, one end of the screw blank screwing guide rod 1-13 is connected with the main case 1-2, one end of the screw blank is screwed into a threaded hole at one end of the screw blank 1-8, so that the screw blank 1-8 is positioned, when the screw is machined, a screw blank screwing guide rod 1-13 and the screw blank 1-8 rotate simultaneously, a screw blank rotating motor 1-12 is installed on the front side of the main case 1-2 and used for controlling the length of the screw blank screwing guide rod 1-13 screwed into the screw blank 1-8, the positioning unit 2 comprises a positioning clamp support 2-1, a clamp claw 2-2, a clamp arm 2-3 and a hydraulic cylinder 2-4, the clamp claw 2-2 is installed above the positioning clamp support 2-1, the hydraulic cylinder 2-4 is located on one side of the positioning clamp support 2-1 and used for controlling the clamping force of the clamp claw 2-2, the gantry milling system 3 comprises a gantry base 3-23, two side milling cutter vertical guide rails 3-2, two side milling cutter processing assemblies, a vertical milling cutter horizontal guide rail 3-11, a vertical milling cutter processing assembly and a numerical control system 3-18, wherein the vertical milling cutter horizontal guide rail 3-11 comprises a parallel horizontal upper guide rail 3-11-1 and a parallel horizontal lower guide rail 3-11-2, the two side milling cutter vertical guide rails 3-2 are symmetrically arranged on the left side and the right side of the upper surface of the gantry base 3-23, the horizontal lower guide rail 3-11-2 is connected with the top ends of the two side milling cutter vertical guide rails 3-2, the two side milling cutter processing assemblies are respectively arranged on the two side milling cutter vertical guide rails 3-2 in a mirror symmetry manner, so that the side milling cutter machining unit can move up and down on the side milling cutter vertical guide 3-2, the vertical milling cutter machining unit is mounted on the vertical milling cutter horizontal guide 3-11 so that the vertical milling cutter machining unit can move left and right on the vertical milling cutter horizontal guide 3-11, and the side milling cutter machining unit includes a side milling cutter horizontal guide holder 3-1, a side milling cutter horizontal guide 3-3, a side milling cutter horizontal feed screw 3-4, a side milling cutter horizontal feed motor 3-5, a side cutter rotation reducer 3-6, a side milling cutter rotation motor 3-7, a side milling cutter vertical feed screw 3-8, a side milling cutter vertical feed motor 3-10, a cutter rotation motor mounting holder 3-21, a screw mill 3-19, a screw mill, a cutter guide 3-11, and a cutter guide 3-7, A tool bit inclined clamping groove 3-22 and a milling cutter tool mounting rack 3-24, wherein a side milling cutter horizontal guide rail 3-3 is arranged on the side milling cutter horizontal guide rail frame 3-1, the side milling cutter horizontal guide rail frame 3-1 is arranged on the side milling cutter vertical guide rail 3-2, a side milling cutter horizontal feed motor 3-5 is arranged on the outer side of the side milling cutter horizontal guide rail frame 3-1, a side cutter rotation reducer 3-6 is arranged on the inner side of the side milling cutter horizontal guide rail frame 3-1, one end of a side milling cutter horizontal feed screw 3-4 penetrates through the side milling cutter horizontal guide rail frame 3-1 and then is connected with the side milling cutter horizontal feed motor 3-5, one end of the side milling cutter horizontal feed screw is connected with one side of the side cutter rotation reducer 3-6, and a screw milling cutter 3-19 is arranged on the other side of the side cutter rotation reducer 3-6, and detachably connected to the milling cutter mounting frame 3-24, the milling cutter mounting frame 3-24 is mounted on the side milling cutter horizontal guide rail 3-3, the cutter rotating motor mounting frame 3-21 is mounted on the milling cutter mounting frame 3-24 and located above the screw milling cutter 3-19, the side milling cutter rotating motor 3-7 is mounted on the cutter rotating motor mounting frame 3-21, the side milling cutter vertical feed motor 3-10 is fixed on the upper end of the side milling cutter vertical guide rail 3-2, the upper end of the side milling cutter vertical feed screw 3-8 is connected to the side milling cutter vertical feed motor 3-10, the lower end is connected to the side milling cutter horizontal guide rail frame 3-1, the cutter head inclined clamping groove 3-22 is semi-circular, the vertical milling cutter machining component comprises vertical milling cutter vertical guide rail frames 3-20, vertical milling cutter vertical guide rails 3-16, vertical milling cutter horizontal feeding screw rods 3-12, vertical milling cutter horizontal feeding motors 3-9, vertical milling cutter rotating speed reducers 3-17, vertical milling cutter rotating motors 3-13, vertical milling cutter vertical feeding screw rods 3-15 and vertical milling cutter vertical feeding motors 3-14, the vertical milling cutter horizontal feeding motors 3-9 are connected to one sides of the vertical milling cutter horizontal guide rails 3-11, the vertical milling cutter vertical guide rail frames 3-20 are arranged on the vertical milling cutter horizontal guide rails 3-11, the vertical milling cutter machining assembly also comprises a milling cutter tool mounting frame 3-24, a tool rotating motor mounting frame 3-21, a screw milling cutter 3-19 and a cutter head inclined clamping groove 3-22, wherein the milling cutter tool mounting frame 3-24 is mounted on the vertical milling cutter vertical guide rail frame 3-20, the cutter rotating motor mounting frame 3-21 is mounted on one side of the milling cutter mounting frame 3-24, the vertical milling cutter rotating motor 3-13 is mounted on the cutter rotating motor mounting frame 3-21, the screw milling cutter 3-19 has a cutter head facing downwards, the cutter head inclined clamping groove 3-22 is in a semicircular arc shape and is arranged on the milling cutter mounting frame 3-24, so that the cutter head of the screw milling cutter 3-19 can swing left and right in the cutter head inclined clamping groove 3-22 along an arc shape, the numerical control system 3-18 is mounted on the other side of the vertical milling cutter horizontal guide rail 3-11 and is arranged opposite to the vertical milling cutter horizontal feeding motor 3-9, the discharging table 4 comprises a discharging table support 4-1, a discharging table top 4-2, a discharging roller support 4-3 and a discharging friction roller 4-4, the workpiece outlet table support 4-1 is arranged below the workpiece outlet table top 4-2 and used for supporting the workpiece outlet table top 4-2, the number of the workpiece outlet roller supports 4-3 is at least 3 pairs, the workpiece outlet roller supports are distributed on the upper surface of the workpiece outlet table top 4-2 at equal intervals, and the workpiece outlet friction rollers 4-4 are arranged on the workpiece outlet roller supports 4-3.

The gantry base 3-23 and the two side milling cutter vertical guide rails 3-2 are integrally formed.

The outgoing friction roller 4-4 is made of rubber.

The part-out friction rollers 4-4 are arranged perpendicular to the axis of the screw blanks 1-8. A friction roller is made of rubber, the friction roller is perpendicular to the axis of the screw rod and arranged to increase friction force, inertia effect of the part is reduced, and the problem of screw rod processing quality caused by the fact that the speed of the part outlet end is too high is solved.

The two positioning units 2 are respectively positioned at two sides of the gantry milling system 3. The two positioning units are arranged on the workpiece inlet side and the workpiece outlet side, so that the stability of the whole screw blank in the machining process is improved, the phenomenon that the jumping in the milling process influences the thread machining quality is avoided, and the rejection rate of products is reduced.

The vertical milling cutter machining assembly and the side milling cutter machining assembly are mounted on the vertical milling cutter horizontal guide rail 3-11 after being in 45-degree mirror image, the tool bit of the screw milling cutter 3-19 faces downwards, the tool bit inclined clamping groove 3-22 is in a semi-circular arc shape and is formed in the milling cutter mounting frame 3-24, so that the tool bit of the screw milling cutter 3-19 can swing left and right in the tool bit inclined clamping groove 3-22 along an arc shape, and the numerical control system 3-18 is mounted on one side of the vertical milling cutter horizontal guide rail 3-11.

1) the gantry milling system of the utility model has three screw milling cutters and tool bit inclined clamping grooves 3-22 corresponding to the milling cutters one by one, each milling cutter can freely move in three directions, namely horizontal movement, vertical movement and up-and-down swing (vertical milling cutter left-and-right swing and side milling cutter up-and-down swing), the horizontal and vertical positions of the milling cutter are adjusted according to the different diameters of the screws, and thread grooves with different tooth form angles on the screws can be machined by the up-and-down swing of the milling cutter tool bit;

2) the feeding system 1 is optimally designed, so that when blank screw blanks 1-8 are machined, a feeding clamping positioning chuck 1-5 clamps the left ends of the screw blanks 1-8, a screw blank rotating motor 1-12 screws screw blank tightening guide rods 1-13 into threaded holes in the end parts of the blank screw blanks 1-8, the feeding clamping chuck 5 is loosened after the screw blanks are tightened, the pushing table 1 moves rightwards, the screw blanks 1-8 are driven to rotate by the screw blank tightening guide rods 1-13, the positioning unit 2 positions the right ends of the screw blanks 1-8 to prevent the screw blanks 1-8 from shaking in the rotating process, and three screw milling cutters 3-19 mill thread lines on the screws along with the screw blanks 1-8 passing through a planer type milling machine;

3) a positioning unit 2 with the same workpiece inlet side is arranged at the workpiece outlet side of the planer type milling machine, screw blanks 1-8 enter a workpiece outlet friction roller 4-4 of a workpiece outlet table 4 through the workpiece outlet side positioning unit, and the workpiece outlet friction roller 4-4 is made of rubber and is arranged perpendicular to the axis of the screw, so that the friction force is increased, the inertia effect of the workpiece outlet is reduced, and the problem of screw machining quality caused by the fact that the workpiece outlet end is too fast is prevented;

4) the chuck pushing motor 1-6, the mainframe box pushing motor 1-10, the screw blank rotating motor 1-12 and the milling cutter feeding motor are all alternating current servo motors, the vertical milling cutter rotating motor 3-13 and the side milling cutter rotating motor 3-7 are all variable frequency motors to realize stepless speed regulation of the cyclone milling head, and can process variable-groove-shaped screws with variable screw pitches, variable groove pitches, rectangular shapes, conical shapes and the like.

In a word, the large-modulus screw gantry numerical control cyclone milling machine simultaneously carries out optimized design on the structures and the layouts of the feeding system 1, the positioning unit 2, the gantry milling system 3 and the discharging table 4, has strong practicability, and has higher automation degree for milling special-shaped screws such as reducing screws, variable pitches, large lead screws, tooth-changing screws and the like, particularly single-line screws, double-line screws and three-line screws with the diameters of 200 plus materials and the lengths of 1000 plus materials and 4000mm, reduces the labor intensity of workers, does not need to clamp and replace cutters for many times, can directly process thread grooves with different tooth-shaped angles on screw blanks, simultaneously improves the production efficiency and the processing quality, maintains the stability of the product quality, and has good application prospect.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, but also to cover any modifications or equivalent changes made in the technical spirit of the present invention, which fall within the scope of the present invention.

Claims

1. The large-modulus screw gantry numerical control cyclone milling machine is characterized by sequentially comprising a feeding system (1), a positioning unit (2), a gantry milling system (3) and a discharging table (4) from left to right, wherein the feeding system (1) comprises a pushing table guide rail (1-1), a mainframe box (1-2), a feeding clamping support (1-3), a chuck moving table (1-4), a feeding clamping positioning chuck (1-5), a chuck pushing motor (1-6), a pushing table screw rod (1-7), a screw blank (1-8), a screw blank support (1-9), a mainframe box pushing motor (1-10), a mainframe box pushing reduction gearbox (1-11), a screw blank rotating motor (1-12), a screw blank screwing guide rod (1-13), The device comprises pushing table support frames (1-14), pushing tables (1-15) and lead screw supports (1-16), wherein the pushing table support frames (1-14) are at least three and respectively support the front ends, the middle ends and the rear ends of the pushing tables (1-15), one ends of the lead screws (1-7) of the pushing tables are connected with the lead screw supports (1-16), the other ends of the lead screws penetrate through a main case pushing reduction gearbox (1-11) and a main case pushing motor (1-10) to be connected, the main case pushing reduction gearbox (1-11) and the lead screw supports (1-16) are positioned on one side of the pushing tables (1-15), a pushing table guide rail (1-1) is arranged on the upper surfaces of the pushing tables (1-15), a main case (1-2) is arranged on the upper surfaces of the pushing table guide rails (1-1), the screw blank feeding device is characterized by comprising a pushing table guide rail (1-1), a feeding clamping support (1-3), a moving table (1-4), a feeding clamping positioning chuck (1-5), a screw blank clamping motor (1-8), a screw blank pushing motor (1-6), a screw blank clamping motor (1-5), a screw blank clamping motor (1-9), a screw blank clamping motor (1-5) and a screw blank clamping motor (1-5), wherein the feeding clamping support (1-3) is arranged on the right side of the feeding clamping positioning chuck (1-5), the screw blank rotating motor (1-12) is arranged on one side of the main case (1-2) and used for controlling the length of the screw blank screwing guide rod (1-13) screwed into the screw blank (1-8) and driving the screw blank to rotate during screw machining, wherein the screw blank rotating motor (1-12) is arranged on one side of the main case (1-2) and is used for controlling the length of the screw blank screwing guide rod (1-13) screwed into the screw blank (1-8) and driving the screw blank to rotate during screw machining, the positioning unit (2) comprises a positioning clamp support (2-1), clamp claws (2-2), clamp arms (2-3) and hydraulic cylinders (2-4), the clamp claws (2-2) are mounted above the positioning clamp support (2-1), the hydraulic cylinders (2-4) are located on one side of the positioning clamp support (2-1) and used for controlling the clamping force of the clamp claws (2-2), the gantry milling system (3) comprises a gantry base (3-23), two side milling cutter vertical guide rails (3-2), two side milling cutter processing assemblies, a vertical milling cutter horizontal guide rail (3-11), a vertical milling cutter processing assembly and a numerical control system (3-18), and the vertical milling cutter horizontal guide rail (3-11) comprises a horizontal upper guide rail (3-11-1) and a horizontal lower guide rail which are parallel to each other The milling machine comprises guide rails (3-11-2), two side milling cutter vertical guide rails (3-2) are symmetrically arranged at the left side and the right side of the upper surface of the gantry base (3-23), the horizontal lower guide rail (3-11-2) is connected with the top ends of the two side milling cutter vertical guide rails (3-2), two side milling cutter processing assemblies are respectively arranged on the two side milling cutter vertical guide rails (3-2) in a mirror symmetry mode, the side milling cutter processing assemblies can move up and down on the side milling cutter vertical guide rails (3-2), the vertical milling cutter processing assemblies are arranged on the vertical milling cutter horizontal guide rails (3-11), the vertical milling cutter processing assemblies can move left and right on the vertical milling cutter horizontal guide rails (3-11), and each side milling cutter processing assembly comprises a side milling cutter horizontal guide rail frame (3-1), A side milling cutter horizontal guide rail (3-3), a side milling cutter horizontal feed screw (3-4), a side milling cutter horizontal feed motor (3-5), a side cutter rotation reducer (3-6), a side milling cutter rotation motor (3-7), a side milling cutter vertical feed screw (3-8), a side milling cutter vertical feed motor (3-10), a cutter rotation motor mounting rack (3-21), a screw milling cutter (3-19), a cutter head inclined clamping groove (3-22) and a milling cutter mounting rack (3-24), wherein the side milling cutter horizontal guide rail (3-3) is arranged on the side milling cutter horizontal guide rail rack (3-1), the side milling cutter horizontal guide rail rack (3-1) is arranged on the side milling cutter vertical guide rail (3-2), the side milling cutter horizontal feeding motor (3-5) is installed on the outer side of the side milling cutter horizontal guide rail frame (3-1), the side cutter rotary speed reducer (3-6) is installed on the inner side of the side milling cutter horizontal guide rail frame (3-1), one end of the side milling cutter horizontal feeding screw rod (3-4) penetrates through the side milling cutter horizontal guide rail frame (3-1) and then is connected with the side milling cutter horizontal feeding motor (3-5), one end of the side milling cutter horizontal feeding screw rod is connected with one side of the side cutter rotary speed reducer (3-6), the screw milling cutter (3-19) is installed on the other side of the side cutter rotary speed reducer (3-6) and is detachably connected with the milling cutter installation frame (3-24), and the milling cutter installation frame (3-24) is installed on the side milling cutter horizontal guide rail (3-3), cutter rotating motor mounting rack (3-21) is installed on milling cutter mounting rack (3-24) and is located above screw milling cutter (3-19), side milling cutter rotating motor (3-7) is installed on cutter rotating motor mounting rack (3-21), side milling cutter vertical feed motor (3-10) is fixed on side milling cutter vertical guide rail (3-2), side milling cutter vertical feed lead screw (3-8) is connected with upper end of side milling cutter vertical feed motor (3-10), lower end of side milling cutter horizontal guide rail rack (3-1), cutter head inclined clamping groove (3-22) is semicircular arc type and is arranged on milling cutter mounting rack (3-24), so that cutter head of screw milling cutter (3-19) can be in cutter head inclined clamping groove (3-22) along arc shape The vertical milling cutter machining assembly comprises a vertical milling cutter vertical guide rail frame (3-20), a vertical milling cutter vertical guide rail (3-16), a vertical milling cutter horizontal feeding screw rod (3-12), a vertical milling cutter horizontal feeding motor (3-9), a vertical milling cutter tool rotating speed reducer (3-17), a vertical milling cutter tool rotating motor (3-13), a vertical milling cutter vertical feeding screw rod (3-15) and a vertical milling cutter vertical feeding motor (3-14), wherein the vertical milling cutter horizontal feeding motor (3-9) is connected to one side of the vertical milling cutter horizontal guide rail (3-11), the vertical milling cutter vertical guide rail frame (3-20) is arranged on the vertical milling cutter horizontal guide rail (3-11) and can move left and right along the vertical milling cutter horizontal guide rail (3-11), the vertical milling cutter vertical feed motor (3-14) is arranged at the upper part of the vertical milling cutter vertical guide rail frame (3-20), the vertical milling cutter tool rotary reducer (3-17) is arranged on the vertical milling cutter vertical guide rail frame (3-20) and is positioned below the vertical milling cutter vertical feed motor (3-14), one end of the vertical milling cutter vertical feed screw (3-15) is connected with the vertical milling cutter vertical feed motor (3-14), the other end of the vertical milling cutter tool rotary reducer (3-17), the vertical milling cutter machining assembly also comprises the milling cutter tool mounting frame (3-24), the tool rotary motor mounting frame (3-21), the screw milling cutter (3-19) and the tool head inclined clamping groove (3-22), and the milling cutter mounting frame (3-24) is arranged on the vertical milling cutter vertical guide rail frame (3-20) 20) On, cutter rotating electrical machines mounting bracket (3-21) install in milling cutter mounting bracket (3-24) upside, vertical milling cutter rotating electrical machines (3-13) install in on cutter rotating electrical machines mounting bracket (3-21), screw rod milling cutter (3-19) tool bit is down, tool bit slope draw-in groove (3-22) are the semicircle arc type, set up in on milling cutter mounting bracket (3-24), make the tool bit of screw rod milling cutter (3-19) can be in along arc horizontal hunting in tool bit slope draw-in groove (3-22), numerical control system (3-18) install in vertical milling cutter horizontal guide rail (3-11) opposite side, with vertical milling cutter horizontal feed motor (3-9) sets up relatively, ejection of compact platform (4) are including ejection of compact platform support (4-1), The workpiece discharging table comprises a workpiece discharging table top (4-2), workpiece discharging roller supports (4-3) and workpiece discharging friction rollers (4-4), wherein the workpiece discharging table supports (4-1) are arranged below the workpiece discharging table top (4-2) and used for supporting the workpiece discharging table top (4-2), the number of the workpiece discharging roller supports (4-3) is at least 3 pairs, the workpiece discharging roller supports are arranged on the upper surface of the workpiece discharging table top (4-2) at equal intervals, and the workpiece discharging friction rollers (4-4) are all arranged on the workpiece discharging roller supports (4-3).

2. A large module screw gantry numerically controlled cyclone milling machine according to claim 1, characterized in that the gantry base (3-23) and the two side milling cutter vertical rails (3-2) are integrally formed.

3. A large module screw gantry numerical control cyclone milling machine according to claim 2, characterized in that the friction rollers (4-4) of the outlet piece are made of rubber.

4. A large module screw gantry numerically controlled cyclone milling machine according to claim 3, characterized in that the outlet friction rollers (4-4) are arranged perpendicular to the axis of the screw blank (1-8).

5. A large module screw gantry numerical control cyclone milling machine according to claim 4, characterized in that the number of the positioning units (2) is two, and the two positioning units are respectively positioned at two sides of the gantry milling system (3).

6. A large module screw gantry numerical control cyclone milling machine according to claim 5, characterized in that the chuck pushing motor (1-6), the main case pushing motor (1-10), the screw blank rotating motor (1-12) and the milling cutter feeding motor are all AC servo motors, and the vertical milling cutter tool rotating motor (3-13) and the side milling cutter tool rotating motor (3-7) are all inverter motors.

7. The large-modulus screw gantry numerical control cyclone milling machine is characterized by sequentially comprising a feeding system (1), a positioning unit (2), a gantry milling system (3) and a discharging table (4) from left to right, wherein the feeding system (1) comprises a pushing table guide rail (1-1), a main case (1-2), a feeding clamping support (1-3), a moving table (1-4), a feeding clamping positioning chuck (1-5), a chuck pushing motor (1-6), a pushing table screw rod (1-7), a screw blank (1-8), a screw blank support (1-9), a main case pushing motor (1-10), a main case pushing reduction gearbox (1-11), a screw blank rotating motor (1-12), a screw blank screwing guide rod (1-13), The device comprises pushing table support frames (1-14), pushing tables (1-15) and lead screw supports (1-16), wherein the pushing table support frames (1-14) are at least three and respectively support the front ends, the middle ends and the rear ends of the pushing tables (1-15), one ends of the lead screws (1-7) of the pushing tables are connected with the lead screw supports (1-16), the other ends of the lead screws penetrate through the heels of main case pushing reduction boxes (1-11) and are connected with main case pushing motors (1-10), the main case pushing reduction boxes (1-11) and the lead screw supports (1-16) are positioned on one sides of the pushing tables (1-15), pushing table guide rails (1-1) are arranged on the upper surfaces of the pushing tables (1-15), the main case (1-2) is arranged on the upper surfaces of the main case pushing reduction boxes (1-11), the screw blank feeding device is characterized by comprising a pushing table guide rail (1-1), a feeding clamping support (1-3), a moving table (1-4), a feeding clamping positioning chuck (1-5), a screw blank pushing motor (1-6), a screw blank positioning motor (1-5), a feeding clamping positioning support (1-3), a feeding clamping positioning chuck (1-5), a screw blank positioning motor (1-8), a screw blank pushing motor (1-6), a screw blank positioning motor (1-5), a screw blank positioning motor (1-9), a screw blank positioning motor (1-5) and a screw blank positioning motor (1-5), the screw blank screwing device is arranged on the upper surface of the pushing table (1-15) and located on one side of a guide rail (1-1) of the pushing table, the screw blank (1-8) is cylindrical and is arranged on the screw blank support (1-9), one end of a screw blank screwing guide rod (1-13) is connected to the mainframe box (1-2), one end of the screw blank screwing guide rod is screwed into a threaded hole in one end of the screw blank (1-8) so as to position the screw blank (1-8), a screw blank rotating motor (1-12) is arranged on the front side of the mainframe box (1-2) and is used for controlling the length of the screw blank screwing guide rod (1-13) to screw the screw blank (1-8), and the positioning unit (2) comprises a positioning clamp support (2-1), The gantry milling system comprises a clamp paw (2-2), a clamp arm (2-3) and a hydraulic cylinder (2-4), wherein the clamp paw (2-2) is installed above a positioning clamp support (2-1), the hydraulic cylinder (2-4) is positioned on one side of the positioning clamp support (2-1) and used for controlling the clamping force of the clamp paw (2-2), the gantry milling system (3) comprises a gantry base (3-23), two side milling cutter vertical guide rails (3-2), two side milling cutter processing assemblies, a vertical milling cutter horizontal guide rail (3-11), a vertical milling cutter processing assembly and a numerical control system (3-18), the vertical milling cutter horizontal guide rail (3-11) comprises a horizontal upper guide rail (3-11-1) and a horizontal lower guide rail (3-11-2) which are parallel and are connected at two ends, the two side milling cutter vertical guide rails (3-2) are symmetrically arranged at the left side and the right side of the upper surface of the gantry base (3-23), the horizontal lower guide rails (3-11-2) are connected with the top ends of the two side milling cutter vertical guide rails (3-2), the two side milling cutter processing assemblies are respectively arranged on the two side milling cutter vertical guide rails (3-2) in a mirror symmetry manner, so that the side milling cutter processing assemblies can move up and down on the side milling cutter vertical guide rails (3-2), the vertical milling cutter processing assemblies are arranged on the vertical milling cutter horizontal guide rails (3-11), so that the vertical milling cutter processing assemblies can move back and forth on the vertical milling cutter horizontal guide rails (3-11), and each side milling cutter processing assembly comprises a side milling cutter horizontal guide rail frame (3-1), A side milling cutter horizontal guide rail (3-3), a side milling cutter horizontal feed screw (3-4), a side milling cutter horizontal feed motor (3-5), a side cutter rotation reducer (3-6), a side milling cutter rotation motor (3-7), a side milling cutter vertical feed screw (3-8), a side milling cutter vertical feed motor (3-10), a cutter rotation motor mounting rack (3-21), a screw milling cutter (3-19), a cutter head inclined clamping groove (3-22) and a milling cutter mounting rack (3-24), wherein the side milling cutter horizontal guide rail (3-3) is arranged on the side milling cutter horizontal guide rail rack (3-1), the side milling cutter horizontal guide rail rack (3-1) is arranged on the side milling cutter vertical guide rail (3-2), the side milling cutter horizontal feeding motor (3-5) is installed on the outer side of the side milling cutter horizontal guide rail frame (3-1), the side cutter rotary speed reducer (3-6) is installed on the inner side of the side milling cutter horizontal guide rail frame (3-1), one end of the side milling cutter horizontal feeding screw rod (3-4) penetrates through the side milling cutter horizontal guide rail frame (3-1) and then is connected with the side milling cutter horizontal feeding motor (3-5), one end of the side milling cutter horizontal feeding screw rod is connected with one side of the side cutter rotary speed reducer (3-6), the screw milling cutter (3-19) is installed on the other side of the side cutter rotary speed reducer (3-6) and is detachably connected with the milling cutter installation frame (3-24), and the milling cutter installation frame (3-24) is installed on the side milling cutter horizontal guide rail (3-3), the cutter rotating motor mounting frame (3-21) is mounted on the milling cutter mounting frame (3-24) and is positioned above the screw milling cutter (3-19), the side milling cutter rotating motor (3-7) is mounted on the cutter rotating motor mounting frame (3-21), the side milling cutter vertical feeding motor (3-10) is fixed on the horizontal lower guide rail (3-11-2), the upper end of the side milling cutter vertical feeding screw rod (3-8) is connected with the side milling cutter vertical feeding motor (3-10), the lower end of the side milling cutter vertical feeding screw rod is connected with the side milling cutter horizontal guide rail frame (3-1), the cutter head inclined clamping groove (3-22) is of a semicircular arc shape and is arranged on the cutter mounting frame (3-24), so that the cutter head of the screw milling cutter (3-19) can be arranged in the cutter head inclined clamping groove (3-22) along an arc shape The vertical milling cutter machining assembly and the side milling cutter machining assembly are mounted on a vertical milling cutter horizontal guide rail (3-11) after being in 45-degree mirror image, a cutter head of the screw milling cutter (3-19) faces downwards, a cutter head inclined clamping groove (3-22) is in a semi-circular arc shape and is formed in the milling cutter mounting frame (3-24), so that the cutter head of the screw milling cutter (3-19) can swing left and right in the cutter head inclined clamping groove (3-22) along an arc shape, the numerical control system (3-18) is mounted on one side of the vertical milling cutter horizontal guide rail (3-11), the discharging table (4) comprises a discharging table support (4-1), a discharging table top (4-2), a discharging roller support (4-3) and a discharging friction roller (4-4), the workpiece outlet table support (4-1) is arranged below the workpiece outlet table top (4-2) and used for supporting the workpiece outlet table top (4-2), the number of the workpiece outlet roller supports (4-3) is at least 3 pairs, the workpiece outlet roller supports are distributed on the upper surface of the workpiece outlet table top (4-2) at equal intervals, and the workpiece outlet friction rollers (4-4) are arranged on the workpiece outlet roller supports (4-3).

8. A large module screw gantry numerical control cyclone milling machine according to claim 7, characterized in that the friction rollers (4-4) of the outlet piece are made of rubber.

9. A large module screw gantry numerically controlled cyclone milling machine according to claim 8, characterized in that the outlet friction rollers (4-4) are arranged perpendicular to the axis of the screw blank (1-8).

10. A large module screw gantry numerical control cyclone milling machine according to claim 9, characterized in that the number of the positioning units (2) is two, and the two positioning units are respectively positioned at two sides of the gantry milling system (3).