A double-head CNC face milling machine for aluminum alloy profiles

Abstract

In order to solve the problems of low efficiency and quality in profile end face processing, the present invention provides a double-head CNC end face milling machine for aluminum alloy profiles, which mainly includes a frame, a machine head located at the left and right ends of the frame, a dragging device for dragging the profile, a supporting device for conveying the profile to the machine head processing station and which can move up and down as a whole, and a pushing device for pushing the profile backward. The two machine heads are both connected to the top of the frame for sliding left and right, and are composed of a large slide, a milling head fixedly connected to the top of the large slide, a rotary positioning device and a rotary pressing device for positioning and pressing the profile. In addition, the supporting device is located on the inner side of the dragging device and the pushing device. Through the milling machine with this structure, the profile end face can be processed quickly and efficiently, which is conducive to realizing automation and improving processing quality and efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of face milling machines, and in particular to a double-head CNC face milling machine for aluminum alloy profiles. Background Art

[0002] With the diversification of aluminum alloy door and window assembly profile sections and window sizes and styles and the development of the home decoration industry, customers have higher and higher requirements for the personalization and quality of doors and windows; the requirements for the precision of windows and the skills of technical workers have also increased. In addition, labor costs and industry concentration are also getting higher and higher; the original single-machine processing model has high requirements for the skills of technical workers. If the workers' skills do not meet the requirements, their production efficiency and door and window quality cannot be effectively guaranteed, and their management costs and comprehensive costs are high; this processing model is increasingly unsuitable for the processing and production of modern aluminum alloy doors and windows; the demand for automation and intelligence of door and window assembly equipment is becoming more and more urgent. Summary of the invention

[0003] In order to solve the problems of low efficiency and quality of profile end face processing, the present invention provides a double-head CNC end face milling machine for aluminum alloy profiles, and the technical solution adopted is as follows:

[0004] A double-head CNC face milling machine for aluminum alloy profiles, characterized by mainly comprising:

[0005] A rack, with guide rails distributed along the length direction arranged above the rack;

[0006] The machine head comprises 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 slide, a milling head fixedly connected to the large slide, a rotary positioning device and a rotary pressing device for positioning and pressing the profile, and the large slide is connected to the frame by a first guide rail pair for left and right sliding;

[0007] The material dragging device comprises a left material dragging device and a right material dragging device which are respectively fixedly connected to the inner side of the rear of the left and right machine heads and are used to drag the profile backward and can move up and down and forward and backward;

[0008] A supporting device, used to transport the profile to the machine head processing station and can move up and down as a whole, including a left supporting device and a right supporting device respectively fixedly connected to the inner sides of the left machine head and the right machine head;

[0009] The material pushing device comprises a left material pushing device and a right material pushing device which are respectively fixedly connected to the inner side of the rear of the left machine head and the right machine head and are used to push the profile backward and can move up and down;

[0010] The material supporting device is located inside the material dragging device and the material pushing device.

[0011] Preferably, the machine head also includes a feeding device for driving the milling head to move left and right, a buffer device connected between the milling head and the large slide, and a limit device. The feeding device is composed of a feeding cylinder and a feeding cylinder mounting seat. The axis of the piston rod of the feeding cylinder is distributed along the front and rear direction of the frame. The cylinder body of the feeding cylinder is fixedly connected to the milling head through the feeding cylinder mounting seat, and one end of the piston rod is fixedly connected to the top of the large slide; the buffer device is composed 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 direction of the frame. The cylinder body of the air cylinder is fixedly connected to the milling head through a damping cylinder mounting seat, and one end of the piston rod is fixedly connected to the slide plate through a damping connecting shaft; the limit device is fixedly connected above the large slide plate and is located on the inner side of the milling head, and is mainly composed of a limit mounting seat, a first limit rod and a buffer shaft, the first limit rod is fixedly connected to the limit mounting seat, and the buffer shaft is slidably connected to the limit mounting seat forward and backward, the limit rod and the buffer shaft are both located between the milling head and the limit mounting seat and are distributed along the front and rear directions of the frame, and a buffer spring is connected between the buffer shaft and the limit mounting seat.

[0012] 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 rotary cylinder located below the hinge point between the swing arm and the positioning rotary support. The cylinder body of the positioning rotary cylinder is fixedly connected to the positioning rotary support, one end of the piston rod is hinged to the swing arm, and the axis of the piston rod is distributed along the front and rear direction of the frame and inclined upward toward the front end. A limiting shaft for limiting the rotation angle of the swing arm is provided at the front end of the swivel support located above the hinge point between the swing arm and the positioning rotary support. In addition, a sliding plate is fixedly connected to the bottom of the positioning rotary support, and positioning pads fixedly connected to the top of the large slide are provided on the left and right sides of the sliding plate. A positioning pressure plate for fixing the position of the sliding plate is fixedly connected to the positioning pad and the sliding plate.

[0013] Preferably, the swivel support is also connected to an adjustment device for driving the positioning swivel support to slide along the left and right directions of the frame, the adjustment device consists of a lead screw, a nut, a handwheel and an adjustment support, the adjustment support is fixedly connected above the large slide board, the lead screw passes through the adjustment support along the left and right directions of the frame and the two are rotatably connected via a bearing, the positioning swivel support is connected to one end of the lead screw via a nut, and one end of the lead screw close to the adjustment support is fixedly connected to the handwheel.

[0014] Preferably, the rotary clamping device mainly includes a fixed part and a rotating part that rotates at a certain angle around the fixed part, the fixed part consists of a base plate, a first vertical plate and a second vertical plate fixedly connected above the base plate, a working table fixedly connected above the two vertical plates, a push rod, a clamping horizontal cylinder for driving the push rod to move forward and backward, and a clamping vertical cylinder for driving the push rod to move up and down. The working table is provided with a long through hole whose length is distributed along the front and back direction of the machine tool, the axis of the piston rod of the clamping vertical cylinder is distributed vertically upward and fixedly connected to the push rod, the clamping horizontal cylinder is fixedly connected to the bottom of the working table, the axis is distributed along the length direction of the long hole, and one end of the piston rod passes through The guide seat is fixedly connected to the cylinder body of the clamping vertical cylinder; the rotating part is composed of a rotating plate located behind the base plate, a clamping rotary cylinder located below the rotating plate and used to drive the rotating plate to rotate 90 degrees upward and forward along the rear end of the base plate, a clamping cylinder and a vertical support plate fixedly connected to the top of the rotating plate, and one end of the clamping cylinder piston rod is also fixedly connected to a clamping plate for clamping the profile, and the clamping plate is distributed perpendicular to the rotating plate. In the state of clamping the profile, the clamping plate is distributed parallel to the workbench, and the vertical support plate is distributed perpendicular to the workbench. In addition, a 90-degree limit plate for limiting the rotation of the rotating plate by 90 degrees is fixedly connected between the first vertical plate and the second vertical plate near one end of the vertical support plate.

[0015] Preferably, the left and right machine heads are both slidably connected to the frame left and right, and a limit cylinder and an articulated shaft are arranged between the right machine head and the frame, the limit cylinder body is fixedly connected to the frame, the movable end is connected to one end of the articulated shaft, the other end of the articulated shaft is fixedly connected to the left machine head, and the axial direction of the limit cylinder piston rod is distributed along the left and right directions; a first servo motor is fixedly connected to the lower part of the left machine head, and a transmission gear is fixedly connected to the output shaft of the first servo motor, and a rack is fixedly connected to the frame along the length direction, and the transmission gear is meshed with the rack, and the right machine head is driven by the first servo motor to move along the left and right directions of the frame, and clamps are connected between the left and right machine heads and the frame bracket.

[0016] Preferably, the left material dragging device and the right material dragging device have the same structure, and are both composed of a material dragging bracket, a material dragging slide plate, a material dragging vertical cylinder, a material dragging horizontal cylinder and a handle. The material dragging slide plate is connected to the inner side of the upper part of the material dragging bracket by sliding up and down through the material dragging vertical cylinder. The handle is fixedly connected to the material dragging pull plate. The material dragging pull plate is connected to the rear of the material dragging slide plate by sliding in the front and rear directions of the material dragging horizontal cylinder. The rear end of the material dragging slide plate is fixedly connected to a material dragging positioning plate for limiting the forward moving distance of the handle.

[0017] Preferably, the left supporting device and the right supporting device have the same structure, and both consist of a supporting seat fixedly connected to the top of the machine head, a supporting connecting plate, a supporting vertical cylinder fixedly connected to the dragging supporting seat and used to drive the supporting connecting plate to slide up and down along the supporting seat, a supporting frame fixedly connected to the inner side of the dragging connecting plate, a driving wheel and a driven wheel fixedly connected to the front and rear ends of the supporting 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 and rear directions, the supporting frame is located inside the conveyor belt and is distributed front and back along the movement direction of the conveyor belt, in addition, the driving wheel connecting plate and the driven wheel connecting plate are fixedly connected to the outer sides of the front and rear ends of the supporting frame, the driving wheel and the driven wheel are respectively rotatably connected to the driving wheel connecting plate and the driven wheel connecting plate, and the driving wheel is connected to a second servo motor.

[0018] Preferably, the driven wheel connecting plate is fixedly connected to the support frame by bolt threads, and a plurality of mounting holes are arranged on the driven wheel connecting plate along the length direction. The tension of the conveyor belt can be adjusted by adjusting the connection position of the driven wheel connecting plate and the support frame.

[0019] Preferably, the left pushing device and the right pushing device have the same structure, both of which are composed of a pushing bracket fixedly connected to the front of the machine head, a pushing slide connected to the top of the pushing bracket through an up and down sliding push cylinder, a push hand connecting plate connected to the pushing slide through a front and back sliding push cylinder, and a push plate fixedly connected to the push hand connecting plate for driving the profile to move.

[0020] The beneficial effects of the present invention are as follows: the automation of profile processing is achieved through the dragging device, the supporting device and the pushing device; the setting of the left and right machine heads can process both ends of the profile at the same time, effectively improving work efficiency and improving processing accuracy; a rotary positioning and rotary clamping device are arranged on the milling head to improve the stability during profile processing and ensure processing accuracy; a position adjustment device is arranged on the left machine head to effectively prevent the profile to be processed from interfering with the side positioning plate in the rotary positioning device, while ensuring that the end face of the profile is positioned closely between the side positioning plates to ensure the processing accuracy of the end face of the profile. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 Schematic diagram of the structure of the present invention

[0022] Figure 2 The left nose part of the main view

[0023] Figure 3 for Figure 1 Left view

[0024] Figure 4 Set up the schematic for the clamp

[0025] Figure 5-6 Schematic diagram of the left machine head structure

[0026] Figure 7-9 Schematic diagram of the left milling head structure

[0027] Figure 10-12 The schematic diagram of the rotary clamping device is shown in Figure 2.

[0028] Figure 13-14 Schematic diagram of the rotary positioning device

[0029] Figure 15-16 The left support device structure diagram

[0030] Fig.17 The left dragging device structure diagram

[0031] Fig.18 Schematic diagram of the left push structure

[0032] 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,

[0033] 7-frame, 8-middle support of the end face to be milled, 9-left support device, 901-support support seat, 902-support connecting plate, 903-support vertical cylinder, 904-floating joint, 905-guide rail connecting plate, 906-support guide rail pair, 907-support 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-support pad, 915-support vertical cylinder support, 916-transmission Belt conveyor; 10- material baffle plate, 11- left machine head, 12- left drag device, 1201- drag bracket, 1202- drag vertical cylinder, 1203- drag vertical cylinder support, 1204- drag vertical guide pair, 1205- drag first fisheye joint, 1206- drag first hinge shaft, 1207- drag horizontal guide connecting plate, 1208- drag second hinge shaft, 1209- drag second fisheye joint, 1210- drag slide plate, 1211- drag horizontal cylinder support, 1212- drag water Flat guide rail pair, 1213-drag material horizontal cylinder, 1214-drag material positioning plate, 1215-drag material pull plate, 1216-handle; 13-machine head cover, 14-left push device, 1401-push material bracket, 1402-push material vertical cylinder, 1403-push material vertical cylinder support, 1404 push material vertical guide rail pair, 1405-push material horizontal guide rail pair, 1406-push plate, 1407-push plate connecting plate, 1408-push material horizontal cylinder, 1409-push material horizontal cylinder support, 1410-push material slide Plate, 1411-reinforcement plate, 1412-first fisheye joint for pushing material, 1413-first hinge shaft for pushing material, 1414-connecting plate of horizontal cylinder for pushing material, 1415-second hinge shaft for pushing material, 1416-second fisheye joint for pushing material; 15-processed center support, 16-processed center support, 17-left pushing device, 18-hinged shaft, 19-adjusting cylinder, 20-adjusting cylinder mounting seat, 21-rack, 22-transmission gear, 23-first servo motor, 24-first guide rail pair, 25-clamp;26-large slide plate, 27-left milling head, 2701-milling head limit rod, 2702-milling head frame, 2703-X axis ball screw pair, 2704-saw blade milling 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, 27 14-Z-axis coupling, 2715-Z-axis ball screw pair, 2716-Z-axis guide pair, 2717-X-axis guide pair, 2718-X-axis servo motor, 2719-milling head limit plate, 2720-X-axis coupling, 2721-Y-axis slide plate, 2722-Z-axis slide plate, 2723-milling head pressure plate, 2724-milling head rotary support, 2725-milling head rotary axis, 2726-milling head pressure cover, 2727-spindle motor connecting plate, 2728-milling head pin;

[0034] 28-rotating clamping device, 2801-clamping rotary cylinder, 2802-clamping rotary cylinder hinge support, 2803-clamping rotary cylinder hinge shaft, 2804-ear seat, 2805-rotating plate, 2806-clamping shaft, 2807-clamping connecting plate, 2808-bottom plate, 2809-vertical cylinder, 2810-vertical cylinder mounting seat, 2811-fixed plate, 2812-horizontal cylinder , 2813-guide shaft, 2814-guide seat, 2815-linear bearing, 2816-worktable, 2817-push rod, 2818-end cover, 2819-90 degree positioning plate, 2820-pressing plate, 2821-vertical support plate, 2822-pressing cylinder, 2823-pressing cylinder pressing plate, 2824-first vertical plate, 2825-second vertical plate, 2826-pressing slewing support;

[0035] 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-screw nut, 2909-screw rod, 2910-adjusting support, 2911-hand wheel, 2912-positioning rotary cylinder, 2913-positioning rotary cylinder mounting seat, 2914-positioning rotary shaft, 2915-positioning end cover, 2916-limiting shaft;

[0036] 30-feed cylinder, 31-feed cylinder mounting seat, 32-feed cylinder connecting shaft, 33-damping cylinder, 34-damping cylinder mounting seat, 35-damping cylinder connecting shaft, 36-second guide rail pair, 37-first limit rod, 38-first limit seat, 39-buffer shaft, 40-machine head drag chain bracket, 41-machine head drag chain box, 42-wiring pipe, 43-first solenoid valve box, 44-second solenoid valve box. DETAILED DESCRIPTION

[0037] The following will refer to the attached Figure 1-18 Exemplary embodiments of the present disclosure are described in more detail. Although exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0038] In the description of the invention, it is necessary to understand that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc. indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of describing the invention, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the invention.

[0039] like Figure 1-4The aluminum alloy profile double-head CNC face milling machine shown is mainly composed of a frame 7, a right machine head 4, a left machine head 11, a right drag device 6, a left drag device 12, a right supporting device 5, a left supporting device 9, a right push device 17, and a left push device 14. The frame 7 is welded with rectangular tubes of high-quality carbon structural steel and is pickled, phosphated and artificially aged. It has high strength and high stability. The length of the frame 7 is distributed in the left and right directions. The frame 7 is provided with guide rails whose lengths are horizontally distributed in the left and right directions. The right machine head 4 and the left machine head 11 are connected to the left and right ends of the frame 7 by sliding left and right through the first guide rail pair 24. The right machine head 4 and the left machine head 11 are both provided with machine head covers 13. In addition, an electric control box 1 is also provided at the right end of the frame 7, an operating box 2 is provided on the electric control box 1, a drag chain box 3 for wiring is provided around the frame 7, and a position adjustment device is also provided between the right machine head 4 and the frame 7, which is mainly composed of an adjusting cylinder 19, an articulated shaft 18 and an adjusting cylinder mounting seat 20. One end of the piston rod of the adjusting cylinder 19 is hinged to the lower end of the right machine head 4 through the articulated 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 machine head 4 can move a certain distance left and right along the first guide rail pair 24, while the left machine head 11 is driven by a rack and pinion mechanism. Specifically, the rack and pinion mechanism The driving structure consists of a rack 21, a transmission gear 22, and a first servo motor 23. The first servo motor 23 is fixedly connected to the bottom of the left machine head 11. The rack 21 is fixed to 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 to the transmission gear 22. The transmission gear 22 is meshed and connected with the rack 21. The first servo motor 23 drives the right machine head to slide left and right along the first guide rail pair 24, so as to facilitate left and right movement according to the length of the profile to be milled. A clamp 25 is provided between the right machine head 4 and the frame 7 and between the left machine head 11 and the frame 7 for emergency braking, so as to facilitate locking of the profile.

[0040] The right head 4 and the left head 11 have the same structure. The two are symmetrically distributed along the center line of the frame 7. The specific structure is described below by taking the left head 11 as an example. Figure 5-Figure 6As shown, it mainly includes a large slide 26, a left milling head 27 connected to the upper part of the large slide 26 by a second guide rail pair 36 for sliding left and right, a feeding device connected between the left milling head 27 and the large slide 26, a buffer device, and a rotary positioning device 29 and a rotary pressing device 28 for positioning and pressing the middle support. The guide rails of the second guide rail pair 36 are distributed above the large slide 26 in the front-to-back direction, and the slider of the second guide rail pair 26 is fixedly connected to 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 connection The feed cylinder 30 is composed of a feed cylinder 30 body and a left milling head 27 through a feed cylinder mounting seat 31, one end of the piston rod of the feed cylinder 30 is fixedly connected to the large slide 26 through a feed cylinder connecting shaft 32, the piston rod of the feed cylinder 30 is distributed along the front-back direction, the feed cylinder connecting shaft 32 is distributed perpendicular to the large slide 26, and the upper end of the feed cylinder connecting shaft 32 is fixed to the piston rod of the feed cylinder 30, and the lower end is fixed to the upper end surface of the large slide 26; the buffer device is composed of a damping cylinder 33, a damping cylinder mounting seat 34, and a damping cylinder connecting shaft 35. The cylinder body of the damping cylinder 33 is fixedly connected to the milling head bracket 2702 of the left milling head 27 through a mounting seat, one end of the piston rod of the damping cylinder 33 is distributed in the front-to-back direction and the front end is fixedly connected to the large slide 26 through a damping cylinder connecting shaft 35, the damping cylinder connecting shaft 35 is vertically fixedly connected above the large slide, and the upper end is fixedly connected to the piston rod of the damping cylinder 33, and a limiting device located in front of the left machine head 11 is also provided on the large slide 26, and the limiting device is composed of a limiting seat 38 fixedly connected to the front of the left machine head 11 above the large slide 26, a fixed connecting It is composed of a first limiting rod 37 and a buffer shaft 39 connected to the limiting seat 38 and located between the limiting seat 38 and the left machine head 11. The buffer shaft 39 is connected to the upper part of the limiting seat 38 by sliding left and right, and a buffer spring is arranged between the buffer shaft 39 and the limiting seat 38. In the non-contact state, the distance between the buffer shaft 39 and the left milling head 27 in the front-to-back direction is smaller than the distance between the first limiting rod 37 and the left milling head 27. In addition, the first solenoid valve box 43 and the second solenoid valve box 44 are fixedly connected to the milling heads of the right machine head 4 and the left machine head 11.

[0041] The left milling head 27 has a structure as follows: Figure 7-9As shown, it is mainly composed of a milling head bracket 2702, a Z-axis guide pair 2716, an X-axis guide pair 2717, an X-axis slide 2706, a Y-axis slide 2721 and a saw blade milling cutter 2704 arranged on the X-axis slide 2706 and can rotate 90 degrees, wherein the Y-axis slide 2721 is fixedly connected to the lower end of the milling head frame 2702, the Y-axis slide 2721 is slidably connected to the top of the large slide 26 along the front and rear direction of the frame 7 through the second guide pair 36, the milling head frame 2702 is fixedly connected with a vertically distributed Z-axis guide pair 2716, the Z-axis slide 2722 is slidably connected to the front end of the Z-axis guide pair 2716 through the Z-axis servo motor 2712 and the Z-axis ball screw pair 2715, and the Z-axis guide pair 2716 is directly below the Z-axis guide pair 2716. A milling head limit rod 2701 is also provided on the Y-axis skateboard 2721, which is used to limit the displacement of the milling head in the up and down directions. The guide rails of the X-axis guide pair 2716 are distributed in the left and right directions at the rear end of the Z-axis skateboard 2722. The X-axis skateboard 2706 is fixedly connected to the slider of the X-axis guide pair 2716, and is slidably connected to the Z-axis skateboard 2722 in the left and right directions under the drive of the X-axis servo motor 2718 and the X-axis coupling 2720. A milling head rotary support 2724 is also fixedly connected to the inner side of the X-axis skateboard 2706 (the right side of the right machine head 4 and the left side of the left machine head 11), and a milling head rotary shaft 2725 is coaxially connected to the milling head rotary support 2724 through a bearing, and the axis of the milling head rotary shaft 2725 is perpendicular to the plane of the X-axis skateboard 2706. The milling head rotary shaft 2725 is distributed in parallel with the front end of the X-axis slide 2706, and the spindle motor 2707 power output shaft is distributed downwardly. The saw blade milling cutter 2704 is fixedly connected to the lower end of the spindle motor 2707 power output shaft, and the milling head rotary cylinder support 2710 is also fixedly connected to the upper end of the X-axis slide 2706. The milling head rotary cylinder 2711 is a cylinder with a middle ear seat, which is hinged to the milling head rotary cylinder support 2710 and can rotate around the holes on the X-axis slide 2706 and the milling head rotary cylinder support 2710. The spindle motor connecting plate 2727 is distributed in parallel with the front end of the X-axis slide 2706, and the spindle motor 2707 power output shaft is distributed downwardly. The saw blade milling cutter 2704 is fixedly connected to the lower end of the spindle motor 2707 power output shaft, and the milling head rotary cylinder support 2710 is also fixedly connected to the upper end of the X-axis slide 2706. The milling head rotary cylinder 2711 is a cylinder with a middle ear seat, which is hinged to the milling head rotary cylinder support 2710 and can rotate around the holes on the X-axis slide 2706 and the milling head rotary cylinder support 2710. One end of 27 is fixedly connected with a milling head pin 2728, which is perpendicular to the spindle motor connecting plate 2727. The piston rod of the milling head rotary cylinder 2711 is downwardly distributed, and the lower end is hinged to the milling head pin 2728 through a fisheye joint. A certain gap is set between the spindle motor connecting plate 2727 and the X-axis slide plate 2706 to avoid interference. In addition, a first limit block 2705 and a second limit block 2708 are respectively set on the spindle motor connecting plate 2727 and the X-axis slide plate 2076. The two limit blocks are located behind the spindle motor 2707. The two limit blocks are adjustably fixed on the spindle motor connecting plate 2727 and the X-axis slide plate 2706 through bolt threads to limit the rotation angle of the spindle motor 2707 around the rotary axis.When the end face of the profile exceeds the sawtooth thickness of the saw blade milling cutter 2704 and needs vertical processing by the saw blade milling cutter 2704, the piston rod of the milling head rotary cylinder 2711 extends, and the components fixedly connected to the spindle motor connecting plate 2727 rotate 90 degrees around the milling head rotary axis 2725. At this time, the saw blade milling cutter 2704 is distributed perpendicular to the profile.

[0042] The rotary clamping device 28 is fixed on the upper inner side of the large slide plate 26 of the machine head, and its structure is as follows: Figure 10-12As shown, it is mainly composed of a fixed part and a rotating part. The fixed part is fixedly connected to the large slide 26. The fixed part is composed of a bottom plate 2808, a first vertical plate 2824, a second vertical plate 2825, a workbench 2816, a clamping horizontal cylinder 2812, a clamping vertical cylinder 2809 and a push rod 2817. The bottom plate 2808 is fixedly connected above the large slide 26. The first vertical plate 2824 and the second vertical plate 2825 are both vertically fixedly connected above the bottom plate 2808, and the two are distributed in parallel with a gap in the middle. The first vertical plate 2824 and the second vertical plate 2825 are fixedly connected above the bottom plate 2808 with a gap parallel to the bottom plate 2808. The workbench 2816 is arranged in a row, and a long through hole is set on the workbench 2816, which runs through from top to bottom and the length is distributed along the front and rear direction of the frame 7. The front part of the lower part of the workbench 2816 is fixedly connected with a fixing plate 2811 located between the first vertical plate 2824 and the second vertical plate 2825. The cylinder body of the clamping horizontal cylinder 2812 is fixedly connected to the fixing plate 2811, and the axis of the piston rod of the clamping horizontal cylinder 2812 is distributed along the front and rear direction of the frame 7. One end of the piston rod of the clamping horizontal cylinder 2812 located behind the fixing plate 2811 is fixedly connected with a guide seat 2814, and the fixing plate 2811 is also provided with a horizontal guide The horizontal guide device is composed of a linear bearing 2815 fixedly connected to a fixed plate 2811 and a guide shaft 2813 coaxially connected to the linear bearing 2815. The axis of the linear bearing 2815 is distributed in a direction parallel to the axis of the clamping horizontal cylinder 2812. The guide shaft 2813 passes through the linear bearing 2815 and the fixed plate 2811 and is fixedly connected to a guide seat 2814. A clamping vertical cylinder 2809 is fixedly connected to the guide seat 2814. The clamping vertical cylinder 2809 is located between the first vertical plate 2824 and the second vertical plate 2825. The axis is distributed in the vertical direction. One end of the piston rod faces upward to clamp the vertical cylinder. The cylinder body of the straight cylinder 2809 is fixedly connected to the guide seat 2814 through the clamping vertical cylinder mounting seat 2810. A push rod 2817 is coaxially fixedly connected above the piston rod of the clamping vertical cylinder 2809. The piston rod of the clamping vertical cylinder 2809 and the push rod 2817 are connected to the through hole of the guide seat 2814 by sliding up and down. The push rod 2817 can slide up and down in the long through hole of the workbench 2816 under the drive of the clamping vertical cylinder 2809. Under the drive of the clamping horizontal cylinder 2812 and the guiding action of the guide device, the push rod 2817 can move forward and backward in the long through hole of the workbench 2816.The rotating part is hinged at the rear of the fixed part and can rotate 90 degrees around the rear end of the fixed part toward the upper front side. It is mainly composed of a rotating plate 2805, a clamping cylinder 2822 fixedly connected to the upper part of the rotating plate 2805 and distributed from the back to the front, a vertical support plate 2821, a clamping connecting plate 2807 and a clamping rotary cylinder 2801 connected to the lower part of the rotating plate. The cylinder body of the clamping cylinder 2822 is fixedly connected to the upper part of the rotating plate 2805 through a connecting piece. In the non-rotating state, the axis of the clamping cylinder 2822 is distributed along the front and rear direction of the frame 7, one end of the piston rod is distributed close to the fixed part, and the end of the piston rod is fixed A clamping plate 2820 is fixedly connected, and a rubber is also arranged on the clamping plate 2820. One end of the piston rod of the clamping rotary cylinder 2801 is hinged to the bottom of the rotating plate 2805 through the clamping rotary cylinder hinge shaft 2803 and the ear seat 2804. The cylinder body of the clamping rotary cylinder 2801 is fixedly connected to the machine head through the clamping rotary cylinder hinge support 2802. The axis of the piston rod of the clamping rotary cylinder 2801 is distributed in the front-to-back direction and forms a certain angle with the horizontal plane. The rotating plate 2805 is rotatably connected with the first vertical plate 2824 and the second vertical plate 2825 through a hinge device, and the hinge device is as follows; Fig.11 and Fig.12As shown, it includes a clamping connecting plate 2807, a clamping rotating shaft 2806, and a clamping rotating support 2826. The clamping connecting plate 2807 is fixedly connected to the top of one end of the rotating plate 2805 close to the bottom plate 28008. The clamping rotating support 2826 is fixedly connected between the first vertical plate 2824 and the second vertical plate 2825 close to one end of the rotating plate 2805. The axis of the clamping rotating shaft 2806 is distributed along the left and right directions of the frame 7 and is rotatably connected to the clamping rotating support 2826 through the bearing and the two end covers 2818. The front end of the clamping connecting plate 2807 is fixedly connected to the clamping rotating shaft 2806. Driven by the cylinder 2801, the rotating plate 2805 can rotate 90 degrees clockwise around the bottom plate 2808 and the left end of the workbench plate 2816. In addition, a 90-degree limit plate 2819 is fixedly connected to the rear end between the first vertical plate 2824 and the second vertical plate 2825. The rear end of the 90-degree limit plate 2819 is fixedly connected to a limit bolt, which is screwed into the inside of the 90-degree limit plate 2819. The axis is distributed along the front and rear direction. The limit bolt extends out of the rear end of the 90-degree limit plate 2819 by a certain length. When the rotating plate 2805 rotates to 90 degrees, the rear end of the limit bolt contacts the upper end surface of the clamping connecting plate 2807. The rotating plate 2805 and the vertical support plate 2821 are touched, thereby limiting the rotation angle of the rotating plate 2805 and the vertical support plate 2821, ensuring that after the rotating part rotates, the vertical support plate 2821 is perpendicular to the workbench 2816. When the profile is placed on the workbench 2816, the pressing rotary cylinder 2801, the pressing vertical cylinder 2809, the pressing horizontal cylinder 2812 and the pressing cylinder 2822 are all in a retracted state. At this time, the pressing rotary cylinder 2801 is actuated to drive the rotating plate 2805 to rotate 90 degrees to the right front and upper side around the rear end of the bottom plate 2808. At this time, the vertical support plate 2821 is perpendicular to the workbench 2816. 16 distribution, the clamping vertical cylinder 2809 drives the push rod 2817 to rise and extend a certain length above the long through hole, the clamping horizontal cylinder 2812 drives the clamping vertical cylinder 2809 and the push rod 2817 to move along the long through hole until the profile is clamped between the vertical support plate 2821 and the push rod 2817, the push rod 2817 and the vertical support plate 2821 clamp the front and rear end surfaces of the profile, the clamping cylinder 2822 is actuated, driving the clamping plate 2820 to move downward, and clamping 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.

[0043] The structure of the rotary positioning device 29 is as follows: Figure 13-14As shown, it includes 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 is rotatably connected to the upper part of the positioning rotary support 2907 through a positioning rotary shaft 2914 and two positioning end covers. 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 to a positioning rotary cylinder support 2913 located below the positioning rotary shaft 2914. 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. One end of the piston rod of the positioning rotary cylinder 2912 is connected to the swing arm 2902 through a 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 to the horizontal plane. In addition, a limit shaft 2916 located above the front side of the positioning rotary shaft 2914 is provided on the upper part of the positioning rotary support 207. The positioning rotary cylinder 2912 drives the swing arm 2902 to rotate around the positioning rotary shaft 2914 within a range of 90 degrees, wherein the limit shaft 2916 is used to limit the limit position of the swing arm 2902 when it rotates upward, and the limit position of the swing arm 2902 that can swing downward is determined by the stroke of the positioning rotary cylinder 2912. A positioning slide plate 2906 is also fixedly connected to the bottom of the positioning rotary support 2907, and the positioning slide plate 2906 is slidably connected to the track in the front and rear directions. The track is composed of two positioning pads 29 04 and two positioning pressure plates 2905, the two 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, and the two positioning pressure plates 2903 are detachably connected to the positioning pads 2904 and the top of the positioning slide 2906 by bolts, and are used to fix the left and right positions of the positioning slide 2906 and the positioning rotary support 2907. In addition, the inner side of the positioning rotary support 2907, that is, the right side of the viewing direction in the figure, is connected with an adjusting device for adjusting the front and rear position of the positioning rotary support 2907, and the adjusting device includes an adjusting support 2910, a screw rod 2909, a nut 2908 and a hand wheel 2911, wherein the adjusting support 2910 is fixedly connected to the top of the large slide 26, the nut 2908 and the hand wheel 2911 2908 is fixedly connected to the front end of the positioning rotary support 2907, the axis of the screw rod 2909 is distributed in the left and right directions of the frame 7, the right end is rotatably connected to the adjustment support 2910 through a bearing, and the left end is coaxially threadedly connected to the nut 2908, and a hand wheel 2911 is arranged at the right end of the screw rod 2909 for easy rotation. When it is necessary to adjust the left and right position of the rotary positioning device 29 on the large slide plate 26 according to the length of the profile, first rotate the hand wheel 2910 to drive the positioning rotary support 2907 to move left and right. After it is in place, place the positioning pressure plate 2903 above the positioning pad 2904 and the positioning slide plate 2906, and fix the positioning pressure plate 2903 and the positioning pad 2904 with bolts, while pressing and positioning the positioning slide plate 2906.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 through the adjustment device. In addition, the swing arm 2902 structure can reduce the stroke of the front and rear feeding device of the machine head and improve the cutting efficiency.

[0044] The left dragging device 12 and the right dragging device 5 have the same structure and are symmetrically distributed around the center line of the frame 7. Fig.17The left material dragging device 12 is introduced. The left material dragging device 12 mainly includes a material dragging bracket 1201, a material dragging vertical cylinder 1202, a material dragging slide plate 1210, a material dragging horizontal cylinder 1213, a material dragging positioning plate 1241 and a handle 1216. The material dragging bracket 1201 is fixedly connected to the upper side of the large slide plate 26 of the left machine head 11. The cylinder body of the material dragging vertical cylinder 1202 is fixedly connected to the inner side of the material dragging bracket 1201 through the material dragging vertical cylinder support 1203, and the piston rod of the material dragging vertical cylinder 1202 is vertically distributed upward. A material dragging slide plate 1210 is also provided on the upper inner side surface of the material dragging bracket 1201. The material dragging slide plate 1210 The material dragging vertical guide pair 1204 connected between the material dragging slide plate 1210 and the material dragging bracket 1201 is slidably connected to the upper part of the material dragging bracket 1201 up and down, one end of the piston rod of the material dragging vertical cylinder 1202 is hingedly connected to the material dragging slide plate 1210 through the first material dragging fisheye joint 1206 and the first material dragging hinge shaft 1206, and the inner side of the material dragging slide plate 1210 is also provided with a material dragging horizontal guide pair 1212 distributed in the front and rear directions, the axis of the material dragging horizontal cylinder 1213 is distributed in the front and rear directions, and the cylinder body of the material dragging horizontal cylinder 1213 is fixedly connected to the material dragging slide plate 1210 through the material dragging horizontal cylinder support 1211, and one end of the piston rod is connected to the material dragging slide plate 1210 through the material dragging first fisheye joint 1206 and the material dragging first hinge shaft 1206. The second fisheye joint 1209 of the material and the second hinge shaft 1208 of the drag material are hingedly connected to the drag material horizontal guide rail connecting plate 1207, and the drag material horizontal guide rail connecting plate 1207 is fixedly connected to the front end of the guide rail of the drag material horizontal guide rail pair 1212, and the slider part in the drag material horizontal guide rail pair 1212 is fixedly connected to the inner side of the drag material slide plate 1210. In addition, a drag material pull plate 1215 is fixedly connected to the rear end of the guide rail in the drag material horizontal guide rail pair 1212, and a handle 1216 is fixedly connected to the lower end of the drag material pull plate 1212, and a drag material positioning plate 1214 located in front of the drag material pull plate 1215 is also fixedly connected to the drag material slide plate 1210. The handle 1216 can slide up and down under the drive of the vertical material drag cylinder 1202, and can move forward and backward under the drive of the horizontal material drag cylinder 1213. The material drag positioning plate 1214 can position the profile. The grabbed profile will be fixed between the handle 1216 and the material drag positioning plate 1214 to ensure that the profile dragged onto the conveyor belt 916 is perpendicular to the synchronous belt 916, thereby ensuring the accurate positioning of the profile. When the device is in the original position, the piston rod of the vertical material drag cylinder 1202 is in an extended state, and the cylinder rod of the horizontal material drag cylinder 1213 is in a retracted state. At this time, the distance between the material drag positioning plate 1214 and the handle 1216 is the largest.

[0045] The left supporting device 9 and the right supporting device 6 have the same structure and are symmetrically distributed. The left supporting device 9 is taken as an example for detailed description. Figure 15-16As shown, it includes two material support seats 901, a material support connecting plate 902, a support frame 907, a driving wheel 908, a driven wheel 911 and a conveyor belt 916. The material support connecting plate 902 is connected to the material support seat 901 by sliding up and down through a material support vertical cylinder 903 and a material support guide pair 906. Specifically, the two material support seats 901 are respectively fixed to the front and rear sides of the inner side of the left machine head 11, the slider of the material support guide pair 906 is fixedly connected to the material support seat 901, the guide rail part is fixedly connected with a guide rail connecting block 905, the material support connecting plate 902 is fixedly connected to the guide rail connecting block 905, and the cylinder body of the material support vertical cylinder 903 is connected to the guide rail connecting block 905. The support bracket 901 is fixedly connected to the support bracket 901 through the support vertical cylinder support 915, and the axis of the support vertical cylinder 903 is distributed in the vertical direction. One end of the piston rod of the support vertical cylinder 903 is connected to the guide rail connecting block 905 through the floating joint 904. The support vertical cylinder 903 can drive the support connecting plate 902 to slide up and down, and the inner sides of the two support connecting plates 902 are fixedly connected with a support frame 907 whose length is distributed in the front-to-back direction and perpendicular to the horizontal plane. The front and rear ends of the support frame 907 are respectively fixedly connected with a driving wheel connecting plate 909 and a driven wheel connecting plate 912. The axes of the driving wheel 908 and the driven wheel 911 are all along the The driving wheel 908 and the total driven wheel 911 are respectively connected to the inner sides of the driving wheel connecting plate 909 and the driven wheel connecting plate 912 in a forward and backward direction along the axis. A conveyor belt 916 is arranged between the driving wheel 908 and the total driven wheel 911. The support frame 907 is also located inside the conveyor belt 916. The driving wheel 908 is also connected to a second servo motor 910 for driving the driving wheel 908 to rotate. In addition, the driven wheel connecting plate 912 is connected to the support frame 907 through an adjustment block 913. The adjustment block 913 is fixedly connected to the rear end surface of the driven wheel connecting plate 912 by bolts. A plurality of groups of mounting holes are arranged in the forward and backward directions of the support frame 903. The axis of the mounting holes passes through the support frame 903 from left to right. The support frame 903 is distributed, and the adjustment block 913 is provided with a threaded hole for connecting with the mounting hole on the support frame 907. By adjusting the position of the adjustment block 913 in the front and rear directions of the support frame 907, the tightness of the conveyor belt 916 can be adjusted. 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. The upper end surfaces of both are fixedly connected with a supporting pad 914 to prevent the conveyor belt 916 from detaching. This device can transport the profile to be processed above the conveyor belt 916 to the machine head processing station, and convey the processed profile to the left pushing device 14 and the right pushing device 17.

[0046] The right pusher 17 and the left pusher 14 have the same structure and are symmetrically distributed along the center line of the frame 7. Fig.18As shown, it mainly includes a push bracket 1401, a push vertical cylinder 1402, a push slide 1410, a push horizontal cylinder 1408, and a push plate 1406, wherein the push bracket 1401 is fixedly connected to the upper front part of the large slide 26 of the left machine head 11, the cylinder body of the push vertical cylinder 1402 is fixedly connected to the push bracket 1401 through the push vertical cylinder support 1403, the piston rod axis of the push vertical cylinder 1402 is vertically distributed upward, and the push bracket 1401 is also provided with a push vertical The pusher vertical guide rail pair 1404 above the straight cylinder 1402, the slider of the pusher vertical guide rail pair 1404 is fixedly connected to the upper part of the pusher bracket 1401, and the guide rail part can slide up and down, and the pusher slide plate 1410 is fixedly connected to the inner side surface 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 is hingedly connected to the pusher slide plate 1410 through the second pusher fisheye joint 1416 and the second pusher hinge shaft 1415. It is also fixedly connected to the cylinder body of the horizontal pusher cylinder 1408 through the horizontal pusher cylinder support 1409, and the horizontal pusher guide rail pair 1405 is also fixedly connected to the pusher slide 1410. Specifically, the slider portion of the horizontal pusher 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 slider distribution in the front and rear directions. The front end of the guide rail of the horizontal pusher guide rail pair 1405 is fixedly connected to the push plate connecting plate 1407, and the front end of the lower part of the push plate 1407 is fixedly connected to the push plate located below the guide rail. 1406, the rear end of the pushing horizontal guide pair 1405 is fixedly connected with a pushing horizontal cylinder connecting plate 1414, and the rear end of the piston rod of the pushing horizontal cylinder 1408 is hingedly connected to the pushing horizontal cylinder connecting plate 1414 through the pushing first fisheye joint 1412 and the pushing first hinge shaft 1413. This device drives the pushing plate 1406 to move up and down through the pushing vertical cylinder 1402, and drives the pushing plate 1406 to move forward and backward through the pushing horizontal cylinder 1408, thereby pushing the processed profile to the next process.

[0047] In addition, two material baffle plates 10 are provided on the right head 4 and the left head 11. The two material baffle plates 10 are respectively fixedly connected to the brackets of the material dragging device and the material pushing device. The length of the material baffle plates 10 is distributed along the front and rear directions. The material baffle plates 10 are located on the outside of the material dragging device in the left and right directions of the frame 7, and are located above the material supporting device in the height direction. They are mainly used to prevent the profiles on the material supporting device from running off during transportation.

[0048] The working principle of the face milling of the present invention is as follows:

[0049] First, according to the length of the profile, the first servo motor 23 is started 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 of the previous process sends the center support 8 of the end face to be milled to the left drag device 12 and the right drag device 5. After the profile is in place, the left supporting device 9 and the right supporting device 6 lift the profile under the action of the supporting vertical cylinder 903. At this time, the upper plane of the synchronous belt 916 is higher than the upper plane of the worktable 2816 in the rotary clamping device 28, and the drag vertical cylinder 1202 in the left drag device 12 and the right drag device 5 is in the protruding position, and the drag horizontal cylinder 1213 In the retracted position, the material dragging vertical cylinder 1202 is then retracted, and the material dragging horizontal cylinder 1213 is extended, that is, the handle 1216 moves down and moves backward, and the handle 1216 drags the profile to move toward the material dragging positioning plate 1214 and clamps the profile between the handle 1216 and the material dragging positioning plate 1214, and then the material dragging horizontal cylinder 1213 is retracted, and the material dragging vertical cylinder 1202 is extended, that is, the profile is released, and then the left material dragging device 12 and the right material dragging device 5 move upward for a certain distance to avoid interference with the profile, and the right supporting device 6 and the left supporting device 9 send the middle support 8 of the end face to be milled to the machine head to be processed position through the second servo motor 910 and the conveyor belt 916;After the profile is in place, the positioning rotary cylinder 2912 in the rotary positioning device 29 in the right head 4 and the left head 11 is actuated to make the swing arm 2902 in the rotary positioning device 29 in a horizontal position and the side positioning plate 2901 in a vertical position. At this time, the inner side surface 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 clamping device 28 of the right head 4 and the left head 11 is actuated to drive the rotating plate 2805 to be distributed perpendicularly to the workbench 2816. After the vertical support plate 2821 is in place, the adjusting cylinder 19 on the right head 4 is actuated to drive the right head 4 to move to the left, thereby clamping the profile between the two side positioning plates 2901 of the two heads, positioning the left and right end surfaces of the profile, and after the left and right heads have tightened the profile, the clamps 25 on the right head 4 and the left head 11 will clamp the two heads The position is locked, and then the clamping cylinder 2822 is actuated to drive the clamping plate 2820 to move downward and press on the upper end face of the profile. The clamping vertical cylinder 2809 is actuated to drive the push rod 2817 to extend upward above the long through hole of the worktable 2816. The clamping horizontal cylinder 2812 is actuated to drive the push rod 2817 to move backward, thereby pressing the front and rear sides of the profile through the push rod 2817 and the vertical support plate 2821. After pressing, the side positioning plate 2901 and various components in the rotary positioning device 29 return to the original position, and the spindle motor 2707 in the right head 4 and the left head 11 is started 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 are started, and the feed cylinder 30 in the head is actuated to complete the milling of the profile end face according to the shape of the profile end face and the compiled processing program. ;

[0050] After the processing of the profile is completed, the saw blade milling cutter 2704, the feed cylinder 30 and other components return to their original positions, the clamping cylinder 2822, the clamping vertical cylinder 2809, the clamping horizontal cylinder 2812, and the clamping rotary cylinder 2801 in the rotary clamping device 28 all return to their original positions, and the rotary clamping device 28 releases the clamping of the profile. Then, the right supporting device 6 and the left supporting device 9 on the right head 4 and the left head 11 are lifted up as a whole, and the profile is transported to the right pushing device 17 and the left pushing device 14 by means of the conveyor belt 916. The vertical pushing cylinder 1403 in the right pushing device 17 and the left pushing device 14 is actuated. After the profile is lifted, the horizontal drag cylinder 1408 is actuated to push the processed profile to the next workstation to complete the processing of the profile end face. Finally, the clamps 25 of the two heads are released, and the adjusting cylinder 19 is actuated to drive the right head 4 to return. Repeat the above steps to process the next profile.

[0051] The above description is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements can be made without departing from the principle of the present invention. These improvements should also be regarded as the protection scope of the present invention.

Claims

1. A double-head CNC face milling machine for aluminum alloy profiles, characterized in that: Mainly include: A rack, with guide rails distributed along the length direction arranged above the rack; The machine head comprises 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 slide, a milling head fixedly connected to the large slide, a rotary positioning device and a rotary pressing device for positioning and pressing the profile, and the large slide is connected to the frame by a first guide rail pair for left and right sliding; The material dragging device comprises a left material dragging device and a right material dragging device which are respectively fixedly connected to the inner side of the rear of the left and right machine heads and are used to drag the profile backward and can move up and down and forward and backward; A supporting device, used to transport the profile to the machine head processing station and can move up and down as a whole, including a left supporting device and a right supporting device respectively fixedly connected to the inner sides of the left machine head and the right machine head; The pushing device comprises a left pushing device and a right pushing device respectively fixedly connected to the inner side of the rear of the left and right machine heads for pushing the profile backward and being movable up and down. The left pushing device and the right pushing device have the same structure and are both composed of a pushing bracket fixedly connected to the front of the machine head, a pushing slide connected to the top of the pushing bracket by sliding up and down through a pushing vertical cylinder, a pusher connecting plate connected to the pushing slide by sliding forward and backward through a pushing horizontal cylinder, and a pusher plate fixedly connected to the pusher connecting plate for driving the profile to move; The material supporting device is located inside the material dragging device and the material pushing device; The machine head also includes a feeding device for driving the milling head to move left and right, a buffer device connected between the milling head and the large slide, and a limit device. The feeding device is composed of a feeding cylinder and a feeding cylinder mounting seat. The axis of the piston rod of the feeding cylinder is distributed along the front and rear direction of the frame. The cylinder body of the feeding cylinder is fixedly connected to the milling head through the feeding cylinder mounting seat, and one end of the piston rod is fixedly connected to the top of the large slide; the buffer device is composed 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 direction of the frame. The cylinder body is fixedly connected to the milling head through a damping cylinder mounting seat, and one end of the piston rod is fixedly connected to the slide plate through a damping connecting shaft; the limit device is fixedly connected above the large slide plate and is located on the inner side of the milling head, and is mainly composed of a limit mounting seat, a first limit rod and a buffer shaft, the first limit rod is fixedly connected to the limit mounting seat, and the buffer shaft is slidably connected to the limit mounting seat forward and backward, the limit rod and the buffer shaft are both located between the milling head and the limit mounting seat and are distributed along the front and rear direction of the frame, and a buffer spring is connected between the buffer shaft and the limit mounting seat.

2. The double-head CNC face milling machine for aluminum alloy profiles according to claim 1, characterized in that: 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 rotary cylinder located below the hinge point between the swing arm and the positioning rotary support. The cylinder body of the positioning rotary cylinder is fixedly connected to the positioning rotary support, one end of the piston rod is hinged to the swing arm, and the axis of the piston rod is distributed along the front and rear direction of the frame and inclined upward toward the front end. A limiting shaft for limiting the rotation angle of the swing arm is provided at the front end of the swivel support located above the hinge point between the swing arm and the positioning rotary support. In addition, a sliding plate is fixedly connected to the bottom of the positioning rotary support, and positioning pads fixedly connected to the top of the large slide are provided on the left and right sides of the sliding plate. A positioning pressure plate for fixing the position of the sliding plate is fixedly connected to the positioning pad and the sliding plate.

3. The double-head CNC face milling machine for aluminum alloy profiles according to claim 2, characterized in that: The swivel support is also connected to an adjusting device for driving the positioning swivel support to slide along the left and right directions of the frame. The adjusting device consists of a lead screw, a nut, a handwheel and an adjusting support. The adjusting support is fixedly connected above the large slide plate. The lead screw passes through the adjusting support along the left and right directions of the frame and the two are rotatably connected through a bearing. The positioning swivel support is connected to one end of the lead screw through a nut, and one end of the lead screw close to the adjusting support is fixedly connected to the handwheel.

4. The double-head CNC face milling machine for aluminum alloy profiles according to claim 1, characterized in that: The rotary clamping device mainly includes a fixed part and a rotating part that rotates around the fixed part at a certain angle. The fixed part is composed of a base plate, a first vertical plate and a second vertical plate fixedly connected to the top of the base plate, a working table fixedly connected to the two vertical plates, a push rod, a clamping horizontal cylinder for driving the push rod to move forward and backward, and a clamping vertical cylinder for driving the push rod to move up and down. The working table is provided with a long through hole whose length is distributed along the front and back direction of the machine tool. The axis of the piston rod of the clamping vertical cylinder is distributed vertically upward and fixedly connected to the push rod. The clamping horizontal cylinder is fixedly connected to the bottom of the working table, and the axis is distributed along the length direction of the long hole, and one end of the piston rod is guided by a guide The seat is fixedly connected to the cylinder body of the clamping vertical cylinder; the rotating part is composed of a rotating plate located behind the base plate, a clamping rotary cylinder located below the rotating plate and used to drive the rotating plate to rotate 90 degrees upward and forward along the rear end of the base plate, a clamping cylinder and a vertical support plate fixedly connected to the top of the rotating plate, and one end of the clamping cylinder piston rod is also fixedly connected to a clamping plate for clamping the profile, and the clamping plate is distributed perpendicular to the rotating plate. In the state of clamping the profile, the clamping plate is distributed parallel to the workbench, and the vertical support plate is distributed perpendicular to the workbench. In addition, a 90-degree limit plate for limiting the rotation of the rotating plate by 90 degrees is fixedly connected between the first vertical plate and the second vertical plate near one end of the vertical support plate.

5. The double-head CNC face milling machine for aluminum alloy profiles according to claim 1, characterized in that: The left and right machine heads are both connected to the frame for sliding movement left and right, and a limit cylinder and an articulated shaft are arranged between the right machine head and the frame. The cylinder body of the limit cylinder is fixedly connected to the frame, and the movable end is connected to one end of the articulated shaft, and the other end of the articulated shaft is fixedly connected to the left machine head, and the axial direction of the piston rod of the limit cylinder is distributed along the left and right directions; a first servo motor is fixedly connected to the lower part of the left machine head, and a transmission gear is fixedly connected to the output shaft of the first servo motor, and a rack is fixedly connected to the frame along the length direction, and the transmission gear is meshed with the rack, and the right machine head is driven by the first servo motor to move along the left and right directions of the frame, and clamps are connected between the left and right machine heads and the frame bracket.

6. The double-head CNC face milling machine for aluminum alloy profiles according to claim 1, characterized in that: The left material dragging device and the right material dragging device have the same structure, and are both composed of a material dragging bracket, a material dragging slide plate, a material dragging vertical cylinder, a material dragging horizontal cylinder and a handle. The material dragging slide plate is connected to the inner side of the upper part of the material dragging bracket by sliding up and down through the material dragging vertical cylinder. The handle is fixedly connected to the material dragging pull plate. The material dragging pull plate is connected to the rear of the material dragging slide plate by sliding in the front and rear directions of the material dragging horizontal cylinder. The rear end of the material dragging slide plate is fixedly connected to a material dragging positioning plate for limiting the forward moving distance of the handle.

7. The double-head CNC face milling machine for aluminum alloy profiles according to claim 1, characterized in that: The left supporting device and the right supporting device have the same structure and are both composed of a supporting seat fixedly connected to the top of the machine head, a supporting connecting plate, a supporting vertical cylinder fixedly connected to the dragging supporting seat and used to drive the supporting connecting plate to slide up and down along the supporting seat, a supporting frame fixedly connected to the inner side of the dragging connecting plate, a driving wheel and a driven wheel fixedly connected to the front and rear ends of the supporting 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 and rear directions, and the supporting frame is located inside the conveyor belt and is distributed front and back along the movement direction of the conveyor belt. In addition, the driving wheel connecting plate and the driven wheel connecting plate are respectively fixedly connected to the outer sides of the front and rear ends of the supporting frame, and the driving wheel and the driven wheel are respectively rotatably connected to the driving wheel connecting plate and the driven wheel connecting plate, and the driving wheel is connected to a second servo motor.

8. The double-head CNC face milling machine for aluminum alloy profiles according to claim 7, characterized in that: The driven wheel connecting plate is fixedly connected to the support frame by bolt threads. A plurality of mounting holes are arranged on the driven wheel connecting plate along the length direction. The tension of the conveyor belt can be adjusted by adjusting the connection position of the driven wheel connecting plate and the support frame.

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