CN111702230A - A kind of aluminum alloy profile double-head CNC face milling - Google Patents

Abstract

In order to solve the problems of profile end face processing efficiency and low quality, the present invention provides an aluminum alloy profile double-head CNC end face milling, which mainly includes a frame, machine heads located at the left and right ends of the frame, and a drag material for dragging the profile. device, a material holding device that is used to transport the profile to the processing station of the machine head and can move up and down as a whole, and a pusher device that pushes the profile back. It consists of a milling head fixedly connected to the top of the large sliding plate, a rotary positioning device for positioning and pressing the profile, and a rotary pressing device. In addition, the material holding device is located inside the dragging device and the pushing device. Through the milling machine of this structure , it can process the end face of the profile quickly and efficiently, which is conducive to the realization of automation and improves the processing quality and efficiency.

Description

A kind of aluminum alloy profile double-head CNC face milling

technical field

The invention and the technical field of end face milling machines, in particular, relate to a double-head numerical control end face milling of an aluminum alloy profile.

Background technique

With the diversification of aluminum alloy door and window assembly profiles and the size and style of finished windows and the development of the home improvement industry, customers have higher and higher requirements for individuality and quality of doors and windows; the precision requirements for finished windows and the skill requirements of skilled workers are also increasing. Then increase. And labor costs and industry concentration are also getting higher and higher; the original single-machine processing mode requires higher skills for skilled workers. The management cost and comprehensive cost are high; this processing mode is more and more unsuitable for the processing and production of modern aluminum alloy doors and windows; the automation and intelligence of door and window assembly equipment are more and more urgent.

SUMMARY OF THE INVENTION

In order to solve the problems of low processing efficiency and low quality of the profile end face, the present invention provides a double-head CNC end face milling of an aluminum alloy profile, and the adopted technical scheme is as follows:

A double-head CNC end milling for aluminum alloy profiles, characterized in that it mainly includes:

Rack, the top of the rack is provided with guide rails distributed along the length direction;

The machine head includes a left machine head and a right machine head respectively located above the left and right ends of the frame. The left machine head and the right machine head have the same structure and are both composed of a large sliding plate and a milling head fixedly connected above the large sliding plate. It is composed of a rotary positioning device for positioning and pressing the profile and a rotary pressing device, and the large sliding plate and the frame are connected by sliding left and right through the first guide rail pair;

A material pulling device, including a left pulling material device and a right material pulling device, which are respectively fixedly connected to the rear inner side of the left and right machine heads for dragging the profiles to move backwards and can move up and down;

The material supporting device is used to transport the profile to the processing station of the machine head and can move up and down as a whole, including a left material supporting device and a right material supporting device which are fixedly connected to the inner side of the left and right machine heads respectively;

A pushing device, including a left pushing device and a right pushing device that are fixedly connected to the rear inner side of the left head and the right head respectively and are used to push the profile material to move backwards and move up and down;

The material holding device is located inside the dragging device and the pushing device.

Preferably, the machine head further includes a feeding device for driving the milling head to move left and right, a buffer device and a limit device connected between the milling head and the large sliding plate, and the feeding device is composed of a feeding cylinder, a feeding It consists of a cylinder mounting seat, the axis of the piston rod of the feeding cylinder is distributed along the front and rear directions of the frame, the cylinder body of the feeding cylinder is fixedly connected with the milling head through the feeding cylinder mounting seat, and one end of the piston rod is fixedly connected above the large sliding plate; the buffer The device consists of a damping cylinder and a damping cylinder mounting seat. The axis of the piston rod of the damping cylinder is distributed along the front and rear directions of the frame. The damping cylinder block is fixedly connected to the milling head through the damping cylinder mounting seat, and one end of the piston rod is fixed to the slide plate through the damping connecting shaft. connection; the limit device is fixedly connected above the large slide plate and located inside the milling head, and is mainly composed of a limit mounting seat, a first limit rod and a buffer shaft, and the first limit rod is fixedly connected to the limit mounting seat , the buffer shaft is slidably connected to the limit mount in front and rear, the limit rod and the buffer shaft are located between the milling head and the limit mount and are distributed along the front and rear directions of the frame, and the buffer shaft and the limit mount are connected with a Buffer spring.

Preferably, the rotary positioning device consists of a positioning rotary support, a swing arm rotatably connected to the upper part of the positioning rotary support, a side positioning plate fixedly connected to the swing arm, and a positioning plate located below the hinge point between the swing arm and the positioning rotary support It consists of a rotary cylinder. The cylinder block of the positioning rotary cylinder is fixedly connected with the positioning rotary support. One end of the piston rod is hinged with the swing arm. The front end of the rotary support above the hinge point of the seat is provided with a limit shaft for limiting the rotation angle of the swing arm. In addition, a sliding plate is fixedly connected below the positioning rotary support, and the left and right sides of the sliding plate are fixedly connected to the large sliding plate. The upper positioning pad, the positioning pad and the sliding plate are fixedly connected with a positioning pressure plate for fixing the position of the sliding plate.

Preferably, the rotary support is also connected with an adjusting device for driving the positioning rotary support to slide along the left and right directions of the frame, the adjusting device is composed of a lead screw, a screw nut, a hand wheel and an adjusting support, and the adjusting support is fixed Connected to the top of the large sliding plate, the lead screw passes through the adjustment support along the left and right directions of the frame, and the two are connected by bearing rotation. The handwheel is fixedly connected.

Preferably, the rotary pressing device mainly includes a fixed part and a rotating part that rotates around the fixed part at a certain angle, and the fixed part consists of a bottom plate, a first vertical plate and a second vertical plate fixedly connected to the top of the bottom plate, and fixedly connected to the bottom plate. The worktable above the two vertical plates, the push rod, the pressing horizontal cylinder for driving the push rod to move back and forth, and the pressing vertical cylinder for driving the push rod to move up and down are composed. Long through holes distributed in the front and rear directions, the pressing vertical cylinder piston rod axis is vertically distributed upward and is fixedly connected with the push rod, the pressing horizontal cylinder is fixedly connected under the worktable, and the axis is along the length of the long hole distribution, and one end of the piston rod is fixedly connected to the pressing vertical cylinder block through the guide seat; the rotating part consists of a rotating plate located behind the bottom plate, located below the rotating plate and used to drive the rotating plate to rotate upward and forward along the rear end of the bottom plate for 90 degrees A compression rotary cylinder with a high degree of compression, a compression cylinder fixed above the rotating plate and a vertical backing plate, and a compression plate for compressing the profile is also fixedly connected to one end of the piston rod of the compression cylinder, and the compression plate is perpendicular to the rotating plate. Distribution, in the state of pressing the profile, the pressing plate is distributed parallel to the worktable, the vertical backing plate is distributed perpendicular to the worktable, in addition, the first vertical plate and the second vertical plate are close to the vertical backing plate One end is fixedly connected with a 90-degree limiting plate for restricting the rotation of the rotating plate by 90 degrees.

Preferably, the left and right handpieces are connected with the frame in a left and right sliding connection, a limit cylinder and a hinge shaft are arranged between the right handpiece and the frame, and the limiter cylinder block is fixedly connected to the frame , the movable end is connected with one end of the hinge shaft, the other end of the hinge shaft is fixedly connected with the left handpiece, and the axis direction of the piston rod of the limiting cylinder is distributed along the left and right directions; the lower part of the left handpiece is fixedly connected with a first servo motor, a second handpiece A transmission gear is fixedly connected to the output shaft of a servo motor, a rack is fixedly connected to the frame along the length direction, and the transmission gear is meshed and connected to the rack. Clamps are connected between the left hand head and the right hand head and the frame bracket.

Preferably, the left dragging device and the right dragging device have the same structure, and are composed of a dragging bracket, a dragging slide, a dragging vertical cylinder, a dragging horizontal cylinder and a handle, and the dragging slide passes through the dragging vertical cylinder. It slides up and down and connects to the inner side of the upper part of the dragging bracket. The handle is fixedly connected to the dragging plate. The dragging plate is connected to the rear of the dragging slide through the front and rear directions of the dragging horizontal cylinder. The fixed connection at the rear end of the dragging slide is useful. The drag positioning plate is used to limit the forward movement distance of the handle.

Preferably, the left support device and the right support device have the same structure, and both are composed of a support support seat fixedly connected to the top of the machine head, a support connection plate, and a material support connection plate that is fixedly connected to the drag support seat and used to drive the material support connection plate. The vertical cylinder for supporting the material sliding up and down along the supporting base, the supporting frame fixedly connected to the inner side of the dragging connecting plate, the driving wheel and the driven wheel fixedly connected to the front and rear ends of the supporting frame, and the conveyor belt connected between the driving wheel and the driven wheel The front and rear directions of the conveyor belt are distributed on the inside of the machine head, and the support frame is located inside the conveyor belt and is distributed forward and backward along the movement direction of the conveyor belt. In addition, the outer sides of the front and rear ends of the support frame are respectively fixedly connected with a driving wheel connecting plate and a driven wheel connection. The driving wheel and the driven wheel are respectively connected in rotation with the driving wheel connecting plate and the driven wheel connecting plate, and the driving wheel is connected with a second servo motor.

Preferably, the driven wheel connecting plate and the support frame are fixedly connected by bolts and threads, and the driven wheel connecting plate is provided with several groups of installation holes along the length direction, and the tension of the conveyor belt can be adjusted by adjusting the connection position of the driven wheel connecting plate and the support frame. .

Preferably, the left pusher device and the right pusher device have the same structure, and both are composed of a pusher bracket fixedly connected to the front of the machine head, a pusher slide connected to the top of the pusher bracket by sliding up and down with a vertical pusher cylinder, and a pusher through the pusher. The material horizontal cylinder is slidably connected to the pusher connecting plate on the pusher slide in the front and rear directions, and the pusher plate is fixedly connected to the pusher connecting plate for driving the profile to move.

The beneficial effects of the invention are: the automation of profile processing is realized through the material dragging device, the material supporting device and the material pushing device, and the setting of the left and right machine heads can process both ends of the profile material at the same time, thereby effectively improving work efficiency and processing accuracy; The rotary positioning and rotary pressing devices are set on the upper part to improve the stability of the profile processing and ensure the processing accuracy; the position adjustment device is set on the left machine head, which can effectively prevent the profile to be processed and the side positioning plate in the rotary positioning device. At the same time, ensure that the end face of the profile is positioned closely between the side positioning plates to ensure the machining accuracy of the end face of the profile.

Description of drawings

Fig. 1 is the structure schematic diagram of the present invention

Figure 2 is a front view of the left nose part

Fig. 3 is a left side view of Fig. 1

Figure 4 is a schematic diagram of the setting structure of the clamp

Figure 5-6 is a schematic diagram of the structure of the left machine head

Figure 7-9 is a schematic diagram of the structure of the left milling head

Figure 10-12 is a schematic diagram of the structure of the rotary pressing device

Figure 13-14 is a schematic diagram of the structure of the rotary positioning device

Figure 15-16 is a schematic diagram of the structure of the left support device

Figure 17 is a schematic diagram of the structure of the left dragging device

Figure 18 is a schematic diagram of the left pusher structure

Among them, 1- electric control box, 2- operation box, 3- drag chain box, 4- left machine head, 5- right drag device, 6- right support device,

7-Frame, 8-The middle lift of the end face to be milled, 9-Left material support device, 901- Material support support base, 902- Material support connection plate, 903- Material support vertical cylinder, 904-Floating joint, 905-Guide rail connecting plate, 906-supporting rail pair, 907-supporting frame, 908-driving wheel, 909-driving wheel connecting plate, 910-second servo motor, 911-driven wheel, 912-driven wheel connecting plate, 913-adjustment block , 914- material support pad, 915- material vertical cylinder support, 916- conveyor belt; 10- material baffle, 11- left machine head, 12- left dragging device, 1201- dragging support, 1202- dragging Vertical cylinder, 1203-Drawing vertical cylinder support, 1204-Drawing vertical guide rail pair, 1205-Drawing first fisheye joint, 1206-Drawing first hinge shaft, 1207-Drawing horizontal guide rail connecting plate, 1208- Towing the second hinged shaft, 1209-Drawing the second fisheye joint, 1210-Drawing slide plate, 1211-Drawing horizontal cylinder support, 1212-Drawing horizontal guide rail pair, 1213-Drawing horizontal cylinder, 1214-Drawing Material positioning plate, 1215- material pulling plate, 1216- handle; 13- machine head cover, 14- left pushing material device, 1401- material pushing bracket, 1402- material pushing vertical cylinder, 1403- material pushing vertical cylinder support, 1404 Pushing vertical guide rail pair, 1405- Pushing material horizontal guide rail pair, 1406- Pushing plate, 1407- Pushing plate connecting plate, 1408- Pushing material horizontal cylinder, 1409- Pushing material horizontal cylinder support, 1410- Pushing material slide plate, 1411 - Reinforcing plate, 1412- Pushing the first fisheye joint, 1413- Pushing the first hinge shaft, 1414- Pushing the horizontal cylinder connecting plate, 1415- Pushing the second hinge shaft, 1416- Pushing the second fisheye joint ;15-machined middle lift, 16machined middle lift, 17-left pusher, 18-joint shaft, 19-adjusting cylinder, 20-adjusting cylinder mounting seat, 21-rack, 22-transmission gear , 23- the first servo motor, 24- the first guide rail pair, 25- clamper; 26- large sliding plate, 27- left milling head, 2701- milling head limit rod, 2702- milling head frame, 2703- X axis Ball screw pair, 2704-saw blade cutter, 2705-first limit block, 2706-X-axis slide plate, 2707-spindle motor, 2708-second limit block, 2709-horizontal limit block, 2710-milling head Rotary cylinder support, 2711-milling head rotary cylinder, 2712-Z-axis servo motor, 2713-Z-axis servo motor seat, 2714-Z-axis coupling, 2715-Z-axis ball screw pair, 2716-Z-axis guide rail pair , 2717-X-axis guide rail pair, 2718-X-axis servo motor, 2719-milling head limit plate, 2720-X-axis coupling, 2721-Y-axis sliding plate, 2722-Z-axis sliding plate, 2723-milling head pressure plate, 2724 - Swivel bearing for milling head, 2725 - Swivel axis for milling head, 2726-milling head gland, 2727-spindle motor connecting plate, 2728-milling head pin;

28- Rotary pressing device, 2801- Pressing rotary cylinder, 2802- Pressing rotary cylinder hinge support, 2803- Pressing rotary cylinder hinge shaft, 2804- Ear seat, 2805- Rotating plate, 2806- Pressing rotary shaft, 2807 -Pressing connection plate, 2808-base plate, 2809-vertical cylinder, 2810-vertical cylinder mounting seat, 2811-fixing plate, 2812-horizontal cylinder, 2813-guide shaft, 2814-guide seat, 2815-linear bearing, 2816-work Platen, 2817-push rod, 2818-end cover, 2819-90 degree positioning plate, 2820-pressing plate, 2821-vertical backing plate, 2822-pressing cylinder, 2823-pressing cylinder pressing plate, 2824-first vertical plate, 2825-second vertical plate, 2826-pressing rotary bearing;

29-Rotation positioning device, 2901-Side positioning plate, 2902-Swing arm, 2903-Positioning pressure plate, 2904-Positioning pad, 2905-Positioning rotary cylinder connecting shaft, 2906-Positioning slide plate, 2907-Positioning rotary support, 2908- Nut, 2909-screw, 2910-adjustment support, 2911-handwheel, 2912-positioning rotary cylinder, 2913-positioning rotary cylinder mounting seat, 2914-positioning rotary shaft, 2915-positioning end cap, 2916-limiting shaft ;

30-feeding cylinder, 31-feeding cylinder mounting seat, 32-feeding cylinder connecting shaft, 33-damping cylinder, 34-damping cylinder mounting seat, 35-damping cylinder connecting shaft, 36-second guide rail pair, 37- The first limit rod, 38-the first limit seat, 39-buffer shaft, 40-head drag chain support, 41-head drag chain box, 42-wire pipe, 43-first solenoid valve box, 44 -Second solenoid valve box.

Detailed ways

Exemplary embodiments of the present disclosure will be described in more detail below with reference to FIGS. 1-18. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided so that the present disclosure will be more thoroughly understood, and will fully convey the scope of the present disclosure to those skilled in the art.

In the description of the invention, it should be understood that the terms "portrait", "horizontal", "top", "bottom", "front", "rear", "left", "right", "vertical", " The orientation or positional relationship indicated by "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the invention, rather than indicating or implying that The device or element referred to must have a particular orientation, be constructed and operate in a particular orientation, and therefore should not be construed as limiting the invention.

As shown in Figure 1-4, the double-head CNC face milling of aluminum alloy profiles is mainly composed of a frame 7, a right head 4, a left head 11, a right dragging device 6, a left dragging device 12, and a right supporting device 5. , Left support device 9, right pusher device 17, left pusher device 14, frame 7 is made of high-quality carbon structural steel rectangular tube welded and processed by pickling, phosphating and artificial aging, with high strength and durability. High stability, the length of the frame 7 is distributed along the left and right directions, the frame 7 is provided with guide rails whose lengths are horizontally distributed along the left and right directions, and the right head 4 and the left head 11 are connected to the frame 7 by sliding left and right through the first guide rail pair 24 On the left and right ends of the frame 7, the right head 4 and the left head 11 are provided with an organic head cover 13. In addition, the right end of the frame 7 is also provided with an electric control box 1, and an operation box 2 is arranged on the electric control box 1. A drag chain box 3 for wiring is arranged around the frame 7, and a position adjustment device is also arranged between the right head 4 and the frame 7, which is mainly composed of an adjustment cylinder 19, a hinge shaft 18 and an adjustment cylinder mounting seat 20. One end of the piston rod of the cylinder 19 is hinged with the lower end of the right handpiece 4 through the hinge shaft 18, and one end of the cylinder body is fixedly connected to the frame 7 through the adjusting cylinder mounting seat 20. Driven by the adjusting cylinder 20, the right handpiece 4 can follow the first The guide rail pair 24 moves a certain distance left and right, while the left head 11 is driven by a rack and pinion mechanism. Specifically, the rack and pinion driving structure consists of a rack 21, a transmission gear 22, and a first servo motor 23. The first servo motor 23 It is fixedly connected to the bottom of the left handpiece 11, the rack 21 is fixed at the front end of the frame 7 and its length is distributed along the length direction of the frame 7, the power output shaft of the first servo motor 23 is connected with a transmission gear 22, and the transmission gear 22 is connected with the tooth The bars 21 are meshed and connected, and the first servo motor 23 drives the right hand head to slide left and right along the first guide rail pair 24, so as to facilitate the left and right movement according to the length of the profile to be milled, and between the right hand head 4 and the frame 7, the left hand machine A clamp 25 is provided between the head 11 and the frame 7 for emergency braking, which is convenient for locking the profile.

The right head 4 and the left head 11 have the same structure, and they are symmetrically distributed along the center line of the frame 7. The following takes the left head 11 as an example to introduce the specific structure. The left head 11 is shown in Figures 5 to 6, and mainly includes The large sliding plate 26, the left milling head 27 connected to the upper side of the large sliding plate 26 through the second guide rail pair 36, the feeding device connected between the left milling head 27 and the large sliding plate 26, the buffer device and the positioning and the compressed rotary positioning device 29 and rotary pressing device 28, the guide rails of the second guide rail pair 36 are distributed above the large sliding plate 26 in the front-rear direction, and the slider of the second guide rail pair 26 is fixedly connected with the lower end of the left milling head 27. The feeding device is composed of a feeding cylinder 30, a feeding cylinder mounting seat 31, and a feeding cylinder connecting shaft 32. The cylinder body of the feeding cylinder 30 is fixedly connected with the left milling head 27 through the feeding cylinder mounting seat 31, and the feeding cylinder 30 One end of the piston rod is fixedly connected with the large sliding plate 26 through the connecting shaft 32 of the feeding cylinder, the piston rod of the feeding cylinder 30 is distributed in the front-rear direction, the connecting shaft 32 of the feeding cylinder is distributed perpendicular to the large sliding plate 26, and the upper end of the connecting shaft 32 of the feeding cylinder is connected to the large sliding plate 26. The piston rod of the feed cylinder 30 is fixed, and the lower end is fixed to the upper end face of the large slide plate 26; the buffer device is composed of a damping cylinder 33, a damping cylinder mounting seat 34, and a damping cylinder connecting shaft 35, and the damping cylinder 33 cylinder body is fixedly connected to the left milling machine through the mounting seat On the milling head bracket 2702 of the head 27, one end of the piston rod of the damping cylinder 33 is distributed in the front and rear directions, and the front end is fixedly connected with the large sliding plate 26 through the damping cylinder connecting shaft 35. The damping cylinder connecting shaft 35 is vertically fixed and connected above the large sliding plate, and the upper end is connected to the damping cylinder. 33 The piston rod is fixedly connected, and the large slide plate 26 is also provided with a limit device located in front of the left handpiece 11, and the limit device is fixedly connected to the limit seat 38, The first limit rod 37 fixedly connected to the limit seat 38 and located between the limit seat 38 and the left handpiece 11 is composed of a buffer shaft 39. The buffer shaft 39 is slidably connected to the upper part of the limit seat 38 and buffers A buffer spring is arranged between the shaft 39 and the limit seat 38, and in the non-contact state, the distance between the buffer shaft 39 and the left milling head 27 in the front-rear direction is smaller than that between the first limit rod 37 and the left milling head 27 In addition, a first solenoid valve box 43 and a second solenoid valve box 44 are fixedly connected to the milling heads of the right hand head 4 and the left hand head 11.

The structure of the left milling head 27 is shown in Figures 7-9. It is mainly composed of the milling head bracket 2702, the Z-axis guide rail pair 2716, the X-axis guide rail pair 2717, the X-axis slide plate 2706, the Y-axis slide plate 2721, and the X-axis slide plate 2706. It is composed of a saw blade milling cutter 2704 that rotates 90 degrees, wherein the Y-axis sliding plate 2721 is fixedly connected to the lower end of the milling head frame 2702, and the Y-axis sliding plate 2721 is slidably connected to the large sliding plate 26 through the second guide rail pair 36 along the front and rear directions of the frame 7 Above, the milling head frame 2702 is fixedly connected with the Z-axis guide rail pair 2716 distributed in the vertical direction, and the Z-axis slide plate 2722 is connected to the front end of the Z-axis guide rail pair 2716 by sliding up and down through the Z-axis servo motor 2712 and the Z-axis ball screw pair 2715. A milling head limit rod 2701 is also provided on the Y-axis slide plate 2721 directly under the Z-axis guide rail pair 2716 to limit the displacement of the milling head in the up and down direction. , the X-axis sliding plate 2706 is fixedly connected to the slider of the X-axis guide rail pair 2716, and is slidably connected to the Z-axis sliding plate 2722 in the left and right directions under the driving of the X-axis servo motor 2718 and the X-axis coupling 2720. On the X-axis sliding plate 2706 The inner side (the right side of the right head 4, the left side of the left head 11) is also fixedly connected with the milling head rotary support 2724, and the milling head rotary support 2724 is connected with the milling head rotary shaft 2725 through the coaxial rotation of the bearing. The axis of the milling head rotary shaft 2725 is distributed along a plane perpendicular to the X-axis sliding plate 2706. One end of the milling head rotary shaft 2725 away from the X-axis sliding plate 2706 is fixedly connected to the side of the spindle motor 2707 through the spindle motor connecting plate 2727, and the spindle motor connecting plate 2727 is distributed in parallel. With the front end of the X-axis slide 2706, the power output shaft of the spindle motor 2707 is distributed downward, the lower end of the power output shaft of the spindle motor 2707 is fixedly connected with a saw blade milling cutter 2704, and the upper end of the X-axis slide 2706 is also fixedly connected with a milling head rotary cylinder support 2710 , the milling head rotary cylinder 2711 is a cylinder with a middle ear seat, which is hinged with the milling head rotary cylinder support 2710, and can rotate around the X-axis slide plate 2706 and the hole on the milling head rotary cylinder support 2710, away from the milling head rotary support 2724 One end of the spindle motor connecting plate 2727 is fixedly connected with a milling head pin 2728, the milling head pin 2728 is distributed perpendicular to the spindle motor connecting plate 2727, the piston rod of the milling head rotary cylinder 2711 is distributed downward, and the lower end is connected to the milling head through a fisheye joint. The pins 2728 are hinged, and a certain gap is set between the spindle motor connecting plate 2727 and the X-axis sliding plate 2706 to avoid interference. In addition, the spindle motor connecting plate 2727 and the X-axis sliding plate 2076 are respectively provided with first limit blocks 2705 And the second limit block 2708, the two limit blocks are located behind the spindle motor 2707, and the two are fixed on the spindle motor connecting plate 2727 and the X-axis slide plate 2706 through bolts and threads. limit, when the profile is stiff When the saw blade and milling cutter 2704 is processed vertically, the piston rod of the rotary cylinder 2711 of the milling head extends out, and the components fixedly connected to the connecting plate 2727 of the spindle motor rotate 90 degrees around the rotary shaft 2725 of the milling head. degrees, at this time, the saw blade milling cutter 2704 is distributed along the perpendicular to the profile.

The rotary pressing device 28 is fixed above the inner side of the large sliding plate 26 of the machine head. Its structure is shown in Figures 10-12. It is mainly composed of a fixed part and a rotating part. The fixed part is fixedly connected to the large sliding plate 26. The fixed part consists of The bottom plate 2808, the first vertical plate 2824, the second vertical plate 2825, the worktable plate 2816, the pressing horizontal cylinder 2812, the pressing vertical cylinder 2809 and the push rod 2817 are composed. The plate 2824 and the second vertical plate 2825 are both vertically and fixedly connected to the top of the bottom plate 2808, and the two are distributed in parallel with a gap in the middle. On the platen 2816, the worktable 2816 is provided with a long through-hole that runs up and down and the length is distributed along the front and rear directions of the frame 7. The front part of the worktable 2816 is fixedly connected with a first vertical plate 2824 and a second vertical plate 2825. Between the fixed plate 2811, press the horizontal cylinder 2812, the cylinder body is fixedly connected with the fixed plate 2811, and the axis of the piston rod of the pressed horizontal cylinder 2812 is distributed along the front and rear directions of the frame 7, and the pressed horizontal cylinder 2812 piston located behind the fixed plate 2811 One end of the rod is fixedly connected with a guide seat 2814, and the fixed plate 2811 is also provided with a horizontal guide device. , the axis of the linear bearing 2815 is distributed in a direction parallel to the axis of the pressing horizontal cylinder 2812, the guide shaft 2813 is fixedly connected to the guide seat 2814 after passing through the linear bearing 2815 and the fixing plate 2811, and the guide seat 2814 is fixedly connected with a pressing vertical cylinder 2809, the pressing vertical cylinder 2809 is located between the first vertical plate 2824 and the second vertical plate 2825, the axis is distributed along the vertical direction, and one end of the piston rod is upward, pressing the vertical cylinder 2809 The cylinder body part is compressed by pressing the vertical cylinder mounting seat 2810 is fixedly connected with the guide seat 2814, and the push rod 2817 is fixed coaxially above the piston rod of the vertical cylinder 2809. Driven by the pressing vertical cylinder 2809, the rod 2817 can slide up and down in the long through hole of the worktable 2816. Under the driving of the pressing horizontal cylinder 2812 and the guiding action of the guiding device, the push rod 2817 can slide on the worktable. The plate 2816 moves back and forth in the long through hole; the rotating part is hinged to the rear of the fixed part and can rotate 90 degrees to the front and upward around the rear end of the fixed part. The pressing cylinder 2822, the vertical backing plate 2821, the pressing connecting plate 2807 and the pressing rotary cylinder 2801 connected under the rotating plate are composed in sequence. Above the moving plate 2805, the axis of the pressing cylinder 2822 is distributed along the front and rear directions of the frame 7 in a non-rotating state, one end of the piston rod is distributed close to the fixed part, and the end of the piston rod is fixedly connected with a pressing plate 2820, and the pressing plate 2820 is also attached. A rubber sheet is provided, and one end of the piston rod of the pressing rotary cylinder 2801 is hinged under the rotating plate 2805 by pressing the hinge shaft 2803 of the rotary cylinder and the ear seat 2804. The heads are fixedly connected, and the axis of the piston rod of the pressing rotary cylinder 2801 is distributed in the front and rear directions and is distributed at a certain angle with the horizontal plane. 11 and 12, the hinge device includes a pressing connecting plate 2807, a pressing rotating shaft 2806, and a pressing rotary support 2826. The pressing connecting plate 2807 is fixedly connected to the top of one end of the rotating plate 2805 near the bottom plate 28008 , the pressing rotary support 2826 is fixedly connected between the first vertical plate 2824 and the second vertical plate 2825 near the end of the rotating plate 2805, the axis of the pressing rotating shaft 2806 is distributed along the left and right direction of the frame 7 and rotates through the bearings and the end caps 2818 It is connected to the pressing rotary support 2826, and the front end of the pressing connecting plate 2807 is fixedly connected with the pressing rotating shaft 2806. Driven by the pressing rotary cylinder 2801, the rotating plate 2805 can go around the bottom plate 2808 and the left end of the table plate 2816. The clock rotates 90 degrees. In addition, between the first vertical plate 2824 and the second vertical plate 2825, the rear end is fixedly connected with a 90-degree limit plate 2819, and the rear end of the 90-degree limit plate 2819 is fixedly connected with limit bolts. The position bolt is screwed into the interior of the 90-degree limit plate 2819, and the axis is distributed in the front-rear direction. The limit bolt protrudes from the rear end of the 90-degree limit plate 2819 for a certain length. It is in contact with the upper end surface of the compression connecting plate 2807, thereby limiting the rotation angle of the rotating plate 2805 and the vertical leaning plate 2821, ensuring that after the rotating part is rotated, the vertical leaning plate 2821 is perpendicular to the worktable plate 2816. When the platen 2816 is above, the pressing rotary cylinder 2801, the pressing vertical cylinder 2809, the pressing horizontal cylinder 2812 and the pressing cylinder 2822 are all in the retracted state. At this time, the pressing rotary cylinder 2801 acts to drive the rotating plate 2805 Rotate 90 degrees around the rear end of the bottom plate 2808 to the right, front and upper. At this time, the vertical backing plate 2821 is distributed perpendicular to the worktable plate 2816. Press the vertical cylinder 2809 to drive the push rod 2817 to rise and extend above the long through hole for a certain length. Press The horizontal cylinder 2812 drives the pressing vertical cylinder 2809 and the push rod 2817 to move along the long through hole until the profile is pressed between the vertical backing plate 2821 and the pushing rod 2817. to compress, to compress the cylinder 2822 actuates to drive the pressing plate 2820 to move downward to compress the profile in the vertical direction. After the profile is processed by the machine head, each cylinder is reset, and the profile is transported to the next station by the conveying device.

The structure of the rotary positioning device 29 is shown in Figures 13-14, including a positioning rotary support 2907, a swing arm 2902, a side positioning plate 2901, a positioning rotary cylinder 2912, and an adjusting device. The swing arm 2902 passes through the positioning rotary shaft 2914 and two positioning ends. The cover is rotatably connected to the upper part of the positioning rotary support 2907, and the side positioning plate 2901 is fixedly connected to one end of the swing arm 2902 away from the positioning rotary shaft 2914. In addition, the positioning rotary support 2907 is also fixedly connected with a positioning rotary below the positioning rotary shaft 2914. The cylinder support 2913, the positioning rotary cylinder 2912 is a cylinder with a middle ear seat, the positioning rotary cylinder 2912 is fixedly connected to the positioning rotary cylinder support 2913 through the middle ear seat, and one end of the piston rod of the positioning rotary cylinder 2912 and the swing arm 2902 pass through the fish The eye joint is hinged with the positioning rotary shaft 2914, and the axis of the positioning rotary cylinder 2912 is distributed at a certain angle with the horizontal plane. In addition, the upper part of the positioning rotary support 207 is provided with a limit shaft 2916 located above the front side of the positioning rotary shaft 2914, and the positioning rotary The cylinder 2912 drives the swing arm 2902 to rotate around the positioning rotation axis 2914 within a range of 90 degrees, wherein the limit axis 2916 is used to limit the limit position of the swing arm 2902 when it rotates upward, and the limit position where the swing arm 2902 can swing is determined by the positioning rotation Determined by the stroke of the cylinder 2912, a positioning slide plate 2906 is also fixedly connected under the positioning rotary support 2907, and the positioning slide plate 2906 is slidably connected in the front and rear directions in the track. The track is composed of two positioning pads 2904 and two positioning pressure plates 2905. The positioning pads 2904 are located on the front and rear sides of the positioning slide 2906 and are fixedly connected to the large slide 26 of the machine head. The two positioning pressure plates 2903 are detachably connected to the positioning pad 2904 and the positioning slide 2906 by bolts. The position of the sliding plate 2906 and the positioning rotary support 2907 in the left and right directions is fixed. In addition, the inner side of the positioning rotary support 2907, that is, the right side of the view direction in the figure, is connected with an adjusting device for adjusting the front and rear positions of the positioning rotary support 2907. The device includes an adjustment support 2910, a screw rod 2909, a nut 2908 and a handwheel 2911, wherein the adjustment support 2910 is fixedly connected to the top of the large slide plate 26, the screw nut 2908 is fixedly connected to the front end of the positioning rotary support 2907, and the axis of the screw 2909 is fixed. Distributed along the left and right directions of the frame 7, the right end is rotatably connected to the adjustment support 2910 through a bearing, the left end is connected to the screw nut 2908 coaxially threaded, and the right end of the lead screw 2909 is provided with a hand wheel 2911 to facilitate rotation, when it is necessary to adjust the rotary positioning according to the length of the profile When the device 29 is in the left-right direction on the large slide plate 26, firstly rotate the handwheel 2910 to drive the positioning rotary support 2907 to move left and right, and after it is in place, place the positioning pressure plate 2903 on the positioning pad 2904 and the positioning slide plate 2906. When the bolts fix the positioning pressure plate 2903 and the positioning backing plate 2904, The positioning slide plate 2906 is pressed and positioned. The device positions the left and right end faces of the profile through the side positioning plate 2901. The position of the side positioning plate 2901 in the left and right directions can be adjusted by the adjusting device, and the structure of the swing arm 2902 can reduce machine time The stroke of the front and rear feeding device of the head improves the cutting efficiency.

The left dragging device 12 and the right dragging device 5 have the same structure, and are symmetrically distributed on the center line of the frame 7. The left dragging device 12 is introduced below with reference to FIG. 17. The left dragging device 12 mainly includes a dragging bracket 1201, a dragging Material vertical cylinder 1202, material dragging slide plate 1210, material pulling horizontal cylinder 1213, material pulling positioning plate 1241 and handle 1216, material pulling bracket 1201 is fixedly connected to the top of the large sliding plate 26 of the left machine head 11, and the cylinder body of the material pulling vertical cylinder 1202 Part of the towing vertical cylinder support 1203 is fixedly connected to the inner side of the towing bracket 1201, and the piston rods of the vertical towing cylinder 1202 are distributed vertically upward. The upper inner surface of the towing bracket 1201 is also provided with a towing slide 1210, so The dragging slide 1210 is connected to the upper part of the dragging bracket 1201 by sliding up and down the dragging vertical guide rail pair 1204 connected between the dragging slide 1210 and the dragging bracket 1201, and one end of the piston rod of the dragging vertical cylinder 1202 passes through the dragging first. A fisheye joint 1206 and the first hinge shaft 1206 for dragging are hingedly connected to the dragging slide 1210. The inner surface of the dragging slide 1210 is also provided with a dragging horizontal guide rail pair 1212 distributed in the front and rear directions. Distribution, the dragging horizontal cylinder 1213 is fixedly connected to the dragging slide 1210 through the dragging horizontal cylinder support 1211, and one end of the piston rod is connected to the dragging level through the dragging second fisheye joint 1209 and the dragging second hinge shaft 1208. The guide rail connecting plate 1207 is hingedly connected, the dragging horizontal guide rail connecting plate 1207 is fixedly connected with the front end of the guide rail of the dragging horizontal guide rail pair 1212, and the slider part of the dragging horizontal guide rail pair 1212 is fixedly connected to the dragging slide plate 1210. In addition, the rear end of the guide rail in the dragging horizontal guide rail pair 1212 is also fixedly connected with a dragging plate 1215, the lower end of the dragging plate 1212 is fixedly connected with a handle 1216, and the dragging slide 1210 is also fixed A towing positioning plate 1214 is connected in front of the pulling material pulling plate 1215. The handle 1216 can slide up and down under the driving of the pulling vertical cylinder 1202, and can move forward and backward under the driving of the pulling horizontal cylinder 1213. The pulling positioning plate 1214 It can play a role in positioning the profile, the grabbed profile will be fixed between the handle 1216 and the dragging positioning plate 1214 to ensure that the profile dragged on the conveyor belt 916 is perpendicular to the synchronous belt 916, and the accurate positioning of the profile is ensured. In the original position, the piston rod of the vertical pulling cylinder 1202 is in an extended state, and the cylinder rod of the pulling horizontal cylinder 1213 is in a retracted state. At this time, the distance between the pulling positioning plate 1214 and the handle 1216 is the largest.

The left support device 9 and the right support device 6 have the same structure and are distributed symmetrically. The following is a detailed description of the left support device 9 as an example. The structure of the left support device 9 is shown in Figures 15-16, including two support seats. 901, the supporting material connecting plate 902, the support frame 907, the driving wheel 908, the driven wheel 911 and the conveyor belt 916, the supporting material connecting plate 902 is connected to the supporting material supporting seat 901 by sliding up and down the supporting material vertical cylinder 903 and the supporting material guide rail pair 906, Specifically, the two material supporting bases 901 are respectively fixed on the front and rear sides of the inner side of the left head 11, the sliding block of the supporting material guide rail pair 906 is fixedly connected to the supporting material supporting base 901, and the guide rail part is fixedly connected with a guide rail connecting block 905, The supporting material connecting plate 902 is fixedly connected with the guide rail connecting block 905, the cylinder body part of the supporting material vertical cylinder 903 is fixedly connected with the supporting material supporting seat 901 through the supporting material vertical cylinder support 915, and the axis of the supporting material vertical cylinder 903 is distributed along the vertical direction. , one end of the piston rod of the vertical cylinder 903 is connected to the guide rail connecting block 905 through the floating joint 904, and the vertical cylinder 903 can drive the connecting plate 902 to slide up and down, and the inner sides of the two connecting plates 902 are fixedly connected with a length of The support frame 907 distributed along the front-rear direction and perpendicular to the horizontal plane, the front and rear ends of the support frame 907 are fixedly connected with a driving wheel connecting plate 909 and a driven wheel connecting plate 912 respectively, and the axes of the driving wheel 908 and the driven wheel 911 are distributed along the left and right directions. , which are respectively connected to the inner side of the driving wheel connecting plate 909 and the driven wheel connecting plate 912 along the front and rear directions of the axis. A conveyor belt 916 is arranged between the driving wheel 908 and the total slave wheel 911, and the support frame 907 is also located inside the conveyor belt 916. The driving wheel 908 also A second servo motor 910 is connected to drive the driving wheel 908 to rotate. In addition, the driven wheel connecting plate 912 is connected to the support frame 907 through an adjusting block 913, and the adjusting block 913 is fixedly connected to the rear end surface of the driven wheel connecting plate 912 by bolts. The support frame 903 is provided with several groups of installation holes in the front and rear directions, and the axes of the installation holes are distributed left and right through the support frame 903. The adjustment block 913 is provided with threaded holes for connecting with the installation holes on the support frame 907. The position of the frame 907 in the front and rear directions can adjust the tightness of the conveyor belt 916. The upper end surfaces of the driving wheel connecting plate 909 and the driven wheel connecting plate 912 are flush with the upper end surface of the conveyor belt 916, and the upper end surfaces of the two are fixedly connected with a support pad 914. , can prevent the conveyor belt 916 from disengaging, the device can transport the profiles to be processed above the conveyor belt 916 to the processing station of the machine head, and the processed profiles conveyor belt to the left pushing device 14 and the right pushing device 17.

The right pushing device 17 and the left pushing device 14 have the same structure and are symmetrically distributed along the center line of the frame 7. As shown in Figure 18, they mainly include a pushing bracket 1401, a pushing vertical cylinder 1402, a pushing slide 1410, and a pushing horizontal The cylinder 1408 and the push plate 1406, wherein the pusher bracket 1401 is fixedly connected to the upper front of the large slide plate 26 of the left machine head 11, and the cylinder body part of the pusher vertical cylinder 1402 passes through the pusher vertical cylinder support 1403 and the pusher bracket 1401 Fixed connection, the axis of the piston rod of the material pushing vertical cylinder 1402 is vertically distributed upward, and the material pushing vertical guide rail pair 1404 is also provided on the material pushing material support bracket 1401 above the material pushing vertical cylinder 1402, and the sliding block of the material pushing vertical guide rail pair 1404 is fixed. Connected to the upper part of the pusher bracket 1401, the guide rail part can slide up and down, the pusher slide 1410 is fixedly connected to the inner side of the guide rail of the pusher vertical guide rail pair 1404, and the upper end of the piston rod of the pusher vertical cylinder 1402 passes through the pusher The second fisheye joint 1416 , the second hinge shaft 1415 for pushing materials are hingedly connected with the pushing slide plate 1410 , and the inner surface of the pushing slide plate 1410 is connected to the cylinder body part of the pushing horizontal cylinder 1408 through the pushing horizontal cylinder support 1409 Fixed and connected, the pusher slide 1410 is also fixedly connected with a pusher horizontal guide rail pair 1405. Specifically, the slider part of the pusher horizontal guide rail pair 1405 is fixedly connected to the inner side of the pusher slide 1410, and the guide rail is slidably connected to the slide in the front and rear directions. Block distribution, the pusher horizontal guide rail pair 1405 is fixedly connected to the front end of the guide rail with a push plate connecting plate 1407, the lower front end of the push plate 1407 is fixedly connected to a push plate 1406 located under the guide rail, and the pusher horizontal guide rail pair 1405 The rear end of the guide rail is fixedly connected with a pusher material The horizontal cylinder connecting plate 1414, the rear end of the piston rod of the pushing horizontal cylinder 1408 is hingedly connected with the pushing horizontal cylinder connecting plate 1414 through the pushing first fisheye joint 1412 and the pushing first hinge shaft 1413. The air cylinder 1402 drives the push plate 1406 to move up and down, and the push plate 1406 is driven to move forward and backward by the pushing horizontal cylinder 1408, so that the processed profile is pushed to the next process.

In addition, the right head 4 and the left head 11 are provided with two baffles 10 , and the two baffles 10 are fixedly connected to the brackets of the dragging device and the pushing device respectively. The length of the baffles 10 is along the front and rear. The direction distribution, the baffle plate 10 is located on the outside of the dragging device in the left and right direction of the frame 7, and the baffle plate 10 is located above the material supporting device in the height direction, which is mainly used to prevent the profiles on the supporting device from being transported during transportation. stray.

The working principle of face milling of the present invention is as follows:

First, according to the length of the profile, start the first servo motor 23 to drive the left head 11 to move to the corresponding position on the frame 7, so that the relative position between the left head 11 and the right head 4 is suitable for the length of the profile. The conveying device will send the middle lift 8 of the end face to be milled to the left dragging device 12 and the right dragging device 5. After the profiles are in place, the left support device 9 and the right support device 6 are under the action of the support vertical cylinder 903. Lift the profile, at this time, the upper plane of the synchronous belt 916 is higher than the upper plane of the worktable 2816 in the rotary pressing device 28, and the pulling vertical cylinders 1202 in the left pulling device 12 and the right pulling device 5 are in the probe position. Out position, the dragging horizontal cylinder 1213 is in the retracted position, then the dragging vertical cylinder 1202 is retracted, and the dragging horizontal cylinder 1213 is extended, that is, the handle 1216 moves down and moves backward, and the handle 1216 drags the profile to the dragging positioning plate Move in the direction of 1214 and clamp the profile between the handle 1216 and the dragging positioning plate 1214, then the dragging horizontal cylinder 1213 is retracted, and the dragging vertical cylinder 1202 is protruding, that is, the profile is released, then the left dragging device 12 and the right The dragging device 5 moves upward for a certain distance to avoid interference with the profiles. The right holding device 6 and the left holding device 9 pass the second servo motor 910 and the conveyor belt 916 to send the middle 8 of the end face to be milled to the machine head for waiting. Processing position: After the profiles are in place, the positioning rotary cylinders 2912 in the rotary positioning device 29 in the right head 4 and the left head 11 act, so that the swing arm 2902 in the rotary positioning device 29 is in a horizontal position, and the side positioning plate 2901 is in a vertical position. At this time, the inner side of the side positioning plate 2901 is parallel to the left and right end surfaces of the profile. At the same time, the pressing rotary cylinder 2801 in the rotary pressing device 28 of the right head 4 and the left head 11 acts to drive the rotating plate 2805 to be perpendicular to the The worktable 2816 is distributed. After the vertical backing plate 2821 is in place, the adjusting cylinder 19 on the right head 4 moves to move the right head 4 to the left, thereby clamping the profiles on the two side positioning plates 2901 of the two heads. In between, position the left and right ends of the profile, and after the left and right machine heads press the profile tightly, the clamps 25 on the right machine head 4 and the left machine head 11 lock the positions of the two machine heads, and then press the cylinder 2822 to act, drive the The pressing plate 2820 moves down and presses on the upper end surface of the profile, and the action of pressing the vertical cylinder 2809 drives the push rod 2817 to extend upward above the long through hole of the worktable 2816, and the pressing horizontal cylinder 2812 moves to drive the push rod 2817 Move backward, so that the front and rear sides of the profile are pressed by the push rod 2817 and the vertical backing plate 2821. After pressing, the side positioning plate 2901 and the components in the rotary positioning device 29 return to their original positions, the right head 4 and the left The spindle motor 2707 in the machine head 11 starts to drive the saw blade milling cutter 2704 to rotate. At the same time, the Z-axis servo motor 2712 and the X-axis servo motor 2718 start up, and the feed cylinder 30 in the machine head moves. The machining program completes the milling of the profile face processing.

After the profile is processed, the saw blade milling cutter 2704, the feed cylinder 30 and other components return to their original positions, and the compression cylinder 2822, the compression vertical cylinder 2809, the compression horizontal cylinder 2812, and the rotary cylinder 2801 in the rotary compression device 28 are compressed. All return to the original position, the rotary pressing device 28 releases the pressing of the profile, and then, the right holding device 6 and the left holding device 9 on the right head 4 and the left head 11 are lifted upward as a whole, and rely on the conveyor belt. 916 The profile is transported to the right pusher 17 and the left pusher 14. The pusher vertical cylinder 1403 in the right pusher 17 and the left pusher 14 act. After the profile is lifted, the puller horizontal cylinder 1408 acts. Push the processed profile to the next station to complete the processing of the end face of the profile. Finally, the clamps 25 of the two machine heads are released, and the action of the adjusting cylinder 19 drives the right machine head 4 to retreat. Repeat the above actions to process the next profile.

The above is only the preferred embodiment of the present invention, it should be pointed out that: for those skilled in the art, under the premise of not departing from the principle of the present invention, several improvements can also be made, and these improvements should also be regarded as the present invention. the scope of protection of the invention.

Claims (10)

1. The utility model provides an aluminum alloy ex-trusions double-end numerical control end face mills which characterized in that mainly includes:

the guide rails are distributed along the length direction above the rack;

the machine head comprises a left machine head and a right machine head which are respectively positioned above the left end and the right end of the rack, the left machine head and the right machine head are identical in structure and respectively consist of a large sliding plate, a milling head fixedly connected above the large sliding plate, a rotary positioning device and a rotary pressing device for positioning and pressing the section bar, and the large sliding plate is connected with the rack in a left-right sliding manner through a first guide rail pair;

the material dragging device comprises a left material dragging device and a right material dragging device which are respectively fixedly connected to the inner sides of the rear parts of the left machine head and the right machine head and are used for dragging the section material to move backwards and can move up and down and back and forth;

the material supporting device is used for conveying the section to a machine head machining station and can integrally move up and down, and comprises a left material supporting device and a right material supporting device which are respectively and fixedly connected to the inner sides of a left machine head and a right machine head;

the pushing device comprises a left pushing device and a right pushing device which are fixedly connected to the inner sides of the rear parts of the left machine head and the right machine head respectively and used for pushing the section bar to move backwards and can move up and down;

the material supporting device is positioned at the inner sides of the material dragging device and the material pushing device.

2. The aluminum alloy profile double-end numerical control end mill according to claim 1, wherein the machine head further comprises a feeding device for driving the milling head to move left and right, a buffering device and a limiting device, the buffering device and the limiting device are connected between the milling head and the large sliding plate, the feeding device comprises a feeding cylinder and a feeding cylinder mounting seat, the axis of a piston rod of the feeding cylinder is distributed along the front and back direction of the frame, a cylinder body of the feeding cylinder is fixedly connected with the milling head through the feeding cylinder mounting seat, and one end of the piston rod is fixedly connected above the large sliding plate; the damping device comprises a damping cylinder and a damping cylinder mounting seat, the axis of a piston rod of the damping cylinder is distributed along the front and back directions of the frame, the cylinder body of the damping cylinder is fixedly connected with the milling head through the damping cylinder mounting seat, and one end of the piston rod is fixedly connected with the sliding plate through a damping connecting shaft; stop device fixed connection is in big slide top and be located the cutter head inboard, mainly comprises spacing mount pad, first gag lever post and buffering axle, first gag lever post fixed connection is in spacing mount pad, and sliding connection is in spacing mount pad around the buffering axle, and gag lever post and buffering axle all are located between cutter head and the spacing mount pad and along frame fore-and-aft direction distribution, be connected with buffer spring between buffering axle and the spacing mount pad.

3. The double-ended numerical control end mill of the aluminum alloy sections according to claim 1, wherein the rotary positioning device is composed of a positioning rotary support, a swing arm rotatably connected to the upper portion of the positioning rotary support, a side positioning plate fixedly connected to the swing arm, and a positioning rotary cylinder located below a hinge point of the swing arm and the positioning rotary support, wherein a cylinder body of the positioning rotary cylinder is fixedly connected to the positioning rotary support, one end of a piston rod is hinged to the swing arm, and an axis of the piston rod is distributed along a front-back direction of the frame and inclines upward from a front end, a limiting shaft for limiting a rotation angle of the swing arm is arranged at the front end of the rotary support located above the hinge point of the swing arm and the positioning rotary support, a sliding plate is fixedly connected to the lower portion of the positioning rotary support, positioning base plates fixedly connected to the upper portion of the large sliding plate are arranged on the left and.

4. The aluminum alloy profile double-end numerical control end mill according to claim 3, wherein the rotary support is further connected with an adjusting device for driving the positioning rotary support to slide along the left and right directions of the rack, the adjusting device is composed of a lead screw, a nut, a hand wheel and an adjusting support, the adjusting support is fixedly connected above the large sliding plate, the lead screw penetrates through the adjusting support along the left and right directions of the rack and is connected with the adjusting support in a rotating mode through a bearing, the positioning rotary support is connected with one end of the lead screw through the nut, and one end of the lead screw, which is close to the adjusting support, is fixedly connected with the hand wheel.

5. The aluminum alloy profile double-ended numerical control end mill according to claim 1, the rotary pressing device mainly comprises a fixed part and a rotating part which rotates around the fixed part for a certain angle, the fixed part consists of a bottom plate, a first vertical plate and a second vertical plate which are fixedly connected above the bottom plate, a working table plate which is fixedly connected above the two vertical plates, a push rod, a pressing horizontal cylinder for driving the push rod to move back and forth and a pressing vertical cylinder for driving the push rod to move up and down, the working table plate is provided with strip through holes with the lengths distributed along the front and back directions of the machine tool, the compaction vertical cylinder piston rod is vertically distributed upwards and is fixedly connected with the push rod, the compression horizontal cylinder is fixedly connected below the working table plate, the axis is distributed along the length direction of the strip hole, and one end of the piston rod is fixedly connected with the compression vertical cylinder body through the guide seat; the rotating portion comprises a rotating plate located behind a bottom plate, a compressing rotary cylinder located below the rotating plate and used for driving the rotating plate to rotate 90 degrees to the upper front side along the rear end of the bottom plate, a compressing cylinder fixedly connected above the rotating plate and a vertical backup plate, one end of a piston rod of the compressing cylinder is fixedly connected with a compressing plate used for compressing a section, the compressing plate is perpendicular to the rotating plate and distributed, the compressing plate is parallel to a working table plate and distributed in a section compressing state, the vertical backup plate is perpendicular to the working table plate, and in addition, a 90-degree limiting plate used for limiting the rotating plate to rotate 90 degrees is fixedly connected between a first vertical plate and a second vertical plate and close to one end of the vertical backup plate.

6. The aluminum alloy profile double-end numerical control end mill as claimed in claim 1, wherein the left machine head and the right machine head are connected with the frame in a left-right sliding manner, a limiting cylinder and a hinge shaft are arranged between the right machine head and the frame, the cylinder body of the limiting cylinder is fixedly connected with the frame, the movable end of the limiting cylinder is connected with one end of the hinge shaft, the other end of the hinge shaft is fixedly connected with the left machine head, and the axial directions of piston rods of the limiting cylinders are distributed along the left-right direction; the left machine head is fixedly connected with a first servo motor below, a transmission gear is fixedly connected with an output shaft of the first servo motor, a rack is fixedly connected with the rack along the length direction, the transmission gear is meshed with the rack and is connected with the right machine head, the right machine head is driven by the first servo motor to move along the left and right directions of the rack, and clamping devices are connected between the left machine head and the rack support.

7. The double-ended numerical control end mill of the aluminum alloy sections as claimed in claim 1, wherein the left material dragging device and the right material dragging device are identical in structure and each consist of a material dragging support, a material dragging sliding plate, a material dragging vertical cylinder, a material dragging horizontal cylinder and a handle, the material dragging sliding plate is vertically and slidably connected to the inner side of the upper portion of the material dragging support through the material dragging vertical cylinder, the handle is fixedly connected with a material dragging pull plate, the material dragging pull plate is slidably connected to the rear portion of the material dragging sliding plate in the front-rear direction through the material dragging horizontal cylinder, and a material dragging positioning plate for limiting the forward movement distance of the handle is fixedly connected to the rear end of the material dragging sliding plate.

8. The double-ended numerical control end mill of aluminum alloy sections as claimed in claim 1, wherein the left and right stock-holding devices are identical in structure and each comprise a stock-holding support base fixedly connected above the machine head, a stock-holding connecting plate, a stock-holding vertical cylinder fixedly connected to the stock-holding support base and driving the stock-holding connecting plate to slide up and down along the stock-holding support base, a support frame fixedly connected to the inner side of the stock-holding connecting plate, a driving wheel and a driven wheel fixedly connected to the front and rear ends of the support frame, and a conveyor belt connected between the driving wheel and the driven wheel, the conveyor belt is distributed on the inner side of the machine head in the front-rear direction, the support frame is positioned inside the conveyor belt and distributed in the front-rear direction along the movement direction of the conveyor belt, further, the outer sides of the front and rear, and the driving wheel is connected with a second servo motor.

9. The aluminum alloy profile double-ended numerical control end mill according to claim 8, wherein the driven wheel connecting plate is fixedly connected with the support frame through bolt threads, a plurality of groups of mounting holes are formed in the driven wheel connecting plate in the length direction, and the tension degree of the conveying belt is adjusted by adjusting the connecting position of the driven wheel connecting plate and the support frame.

10. The double-ended numerical control end mill of aluminum alloy sections according to claim 1, wherein the left pushing device and the right pushing device are identical in structure and are composed of a pushing support fixedly connected to the front of the machine head, a pushing sliding plate vertically slidably connected to the upper side of the pushing support through a pushing vertical cylinder, a pushing connecting plate slidably connected to the pushing sliding plate in the front-back direction through a pushing horizontal cylinder, and a pushing plate fixedly connected to the pushing connecting plate and used for driving the sections to move.

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