Conveying device for sawing, milling and drilling automatic production line and profile overturning method of conveying device

Abstract

The invention belongs to the technical field of sectional material machining, and particularly relates to a conveying device for a sawing, milling and drilling automatic production line and a sectional material overturning method thereof.The conveying device comprises multiple stages of linear conveying mechanisms, a portal frame, a clamping mechanism and an overturning mechanism, and the discharging end of the previous stage of linear conveying mechanism is close to the feeding end of the next stage of linear conveying mechanism; the discharging end of the last stage of linear conveying mechanism is close to the turnover mechanism, the machining center in the portal frame is arranged above the linear conveying mechanisms, the multiple sets of clamping mechanisms are arranged between the linear conveying mechanisms at intervals, and the clamping mechanisms are fixedly connected with the portal frame. The turnover discharging device has the beneficial effects that turnover discharging of equipment is achieved, and the profile conveying efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of profile processing, and in particular to a transmission device for an automatic production line of sawing, milling and drilling and a profile turning method thereof. Background Art

[0002] In the traditional door and window processing and manufacturing process, the cutting, hole processing and assembly of profiles often require multiple machines and multiple transports to complete, which not only consumes a lot of manpower and time, but also increases production costs. At the same time, due to multiple transports and repositioning, production efficiency is reduced, and complex operations such as flipping of profiles cannot be performed.

[0003] The emergence of intelligent CNC centers has brought revolutionary changes to the door and window processing industry. This multifunctional equipment can automatically complete a series of processes such as feeding and processing after placing the entire material on the workbench. However, the existing sawing, milling and drilling production lines are mostly linear conveying, and cannot achieve profile flipping. Manual flipping of profiles is inefficient, and the processed profiles themselves have a high temperature, which can easily burn workers. Summary of the invention

[0004] The present invention is aimed at the above-mentioned problems and specifically designs a transmission device and a profile turning method for an automatic production line of sawing, milling and drilling, so as to realize the turning and unloading of the equipment and improve the profile transmission efficiency.

[0005] To achieve the above-mentioned objectives, the present invention provides a transmission device for an automatic production line of sawing, milling and drilling, comprising a multi-stage linear transmission mechanism, a gantry, a clamping mechanism and a flipping mechanism, the unloading end of the linear transmission mechanism of the previous stage is close to the loading end of the linear transmission mechanism of the next stage, the unloading end of the linear transmission mechanism of the last stage is close to the flipping mechanism, the machining center in the gantry is arranged above the linear transmission mechanism, the clamping mechanism has multiple groups, which are arranged at intervals between the linear transmission mechanisms, and the clamping mechanism is fixedly connected to the gantry.

[0006] Furthermore, the linear transmission mechanism includes a supporting frame, a first power source, a first force transmission shaft and a belt transmission assembly. The first power source drives and connects the first force transmission shaft. The belt transmission assembly has multiple groups and is arranged in parallel on the first force transmission shaft.

[0007] Furthermore, the belt drive assembly includes a driving wheel, a driven wheel, a belt and a tensioning wheel, the driving wheel is fixedly connected to the first force transmission shaft, the driven wheel is rotatably connected to the support frame, the belt is hung between the driving wheel and the driven wheel, the tensioning wheel is rotatably mounted on a connecting plate, the connecting plate is fixedly connected to the support frame, and the tensioning wheel contacts the inner ring of the belt.

[0008] Furthermore, the clamping mechanism includes a base, a first cylinder, a clamping seat, a second cylinder and a movable splint, the base is fixedly connected to the gantry, the two ends of the first cylinder are respectively fixedly connected to the base and the clamping seat, the clamping seat is movably connected to the base through a guide rail pair and the first cylinder, the two ends of the second cylinder are respectively fixedly connected to the clamping seat and the movable splint, and the movable splint is movably connected to the clamping seat through a guide rail pair and the second cylinder.

[0009] Furthermore, the clamping mechanism also includes a third cylinder and a lifting plate, and two ends of the third cylinder are fixedly connected to the base and the lifting plate respectively.

[0010] Furthermore, the flipping mechanism includes a frame, a fourth cylinder, a sliding seat, a second power source, a second force transmission shaft, a flipping assembly and a roller assembly. The two ends of the fourth cylinder are respectively fixedly connected to the frame and the sliding seat. The sliding seat is slidably connected to the frame through a guide rail pair and the fourth cylinder. The second power source is fixedly connected to the sliding seat through a mounting seat, and the second power source is driven to connect to the second force transmission shaft. The flipping assembly has multiple groups, which are arranged in parallel on the second force transmission shaft, and the roller assembly is arranged on the frame.

[0011] Furthermore, the flipping assembly includes a mounting base, a fifth cylinder, a flipping frame and a fixed plate. The mounting base is fixedly connected to the second force transmission shaft through a bearing seat. Both ends of the fifth cylinder are respectively fixedly connected to the mounting base and the flipping frame. The flipping frame is movably connected to the mounting base through a guide rail pair and the fifth cylinder, and the fixed plate is fixedly connected to the mounting base.

[0012] Furthermore, the roller assembly includes a sixth cylinder, a support plate, and a plurality of groups of rollers. Both ends of the sixth cylinder are fixedly connected to the frame and the support plate respectively, and the rollers are rotatably connected to the support plate.

[0013] Furthermore, the flip mechanism is also equipped with a proximity switch, which is communicatively connected to the input end of the CNC center controller, and the fifth cylinder and the second power source are communicatively connected to the output end of the controller respectively.

[0014] The present invention also includes a profile turning method for a transmission device used in an automatic production line for sawing, milling and drilling, comprising the following steps: 1) The profile to be processed enters the transmission device from the loading end of the linear transmission mechanism, is transported by the multi-level linear transmission mechanism, and moves to the bottom of the gantry; 2) The cylinder in the clamping mechanism adjusts the feed and clamps the profile. The machining center mounted on the gantry performs sawing, milling and drilling of the profile. After the machining is completed, the clamping mechanism returns to its original position. 3) The processed profile is transported to the flip mechanism by the linear transmission mechanism. The flip frame in the initial state avoids the moving path of the profile. When the frontmost proximity switch detects that the profile is approaching, it outputs a signal to the controller. The controller controls the start of the second power source, and the second power source outputs power to drive the flip assembly to rotate to a horizontal state. 4) When the second group of proximity switches detects that the profile is close to the fixed plate, the controller outputs a command to the fifth cylinder to control the start of the fifth cylinder, and the fifth cylinder drives the turning frame to feed synchronously, thereby clamping the profile; 5) The fourth cylinder starts to drive the sliding seat to feed synchronously, so that the flip assembly is close to the roller assembly; 6) The second power source continues to output power, driving the flip assembly to rotate to a vertical state. The sixth cylinder starts, driving the rollers to rise synchronously until the rollers touch the profiles. Then the fifth cylinder returns to its position, releasing the clamping of the profiles. The fourth cylinder and the second power source return to their positions one after another, and the rollers transmit the profiles.

[0015] In summary, the present invention has the following advantages and beneficial technical effects: 1. The present invention sets up a transmission line to improve the transmission efficiency, wherein the first power source outputs power and transmits the profile to be processed through the transmission of the belt assembly, and the linear transmission mechanism can be selectively assembled according to the production site, with high flexibility and suitable for requirements of different transmission distances; the second power source outputs power and drives the turning frame to rotate through the second power transmission shaft to realize the turning of the profile, thereby increasing the mechanization and automation of the equipment, saving time and effort compared to manual turning, and improving the transmission efficiency.

[0016] 2. In the present invention, the first cylinder drives the clamping seat to feed synchronously to adjust the longitudinal distance between the clamping seat and the profile, and the second cylinder drives the movable clamping plate to feed synchronously to adjust the lateral distance between the clamping seat and the movable clamping plate, so that multiple groups of clamping mechanisms in parallel can clamp the profile together to improve the clamping stability. In addition, it reduces the pollution of the linear transmission mechanism below during the operation of the sawing, milling and drilling machining center, thereby extending the service life of the equipment; the third cylinder is set to adjust the posture of the profile to achieve surface changing.

[0017] 3. In the present invention, the fourth cylinder drives the sliding seat to feed synchronously, changes the position of the sliding seat on the frame, and is used to adjust the distance between the flipping assembly and the roller assembly to achieve directional conveying; the fifth cylinder drives the fixed plate to feed synchronously, and is used to adjust the distance between the fixed plate and the flipping frame, thereby achieving a stable clamping of the profile during the flipping process to prevent the profile from falling.

[0018] 4. In the present invention, the sixth cylinder drives the support plate to feed synchronously to adjust the height of the roller assembly and approach the flip assembly, thereby stably carrying the profile.

[0019] 5. The initial height of the turning frame in the turning assembly is lower than the height of the belt to avoid the moving path of the profile. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which: Figure 1 It is a three-dimensional schematic diagram of the present invention; Figure 2 It is a front view schematic diagram of the present invention; Figure 3 is a top view schematic diagram of the present invention; Figure 4 It is a usage state diagram of the gantry in the present invention; Figure 5 It is a three-dimensional schematic diagram of the linear transmission mechanism in the present invention; Figure 6 is a three-dimensional schematic diagram of the support frame in the present invention; Figure 7 It is a schematic diagram of the front view of the linear transmission mechanism in the present invention; Figure 8 is a three-dimensional schematic diagram of a belt transmission assembly in the present invention; Fig. 9 It is a three-dimensional schematic diagram of the clamping mechanism in the present invention. Figure 1 ; Fig.10 It is a schematic front view of the clamping mechanism in the present invention; Fig.11 It is a three-dimensional schematic diagram of the clamping mechanism in the present invention. Figure 2 ; Fig.12 It is a three-dimensional schematic diagram of the initial state of the flip mechanism in the present invention; Fig.13 is a side view schematic diagram of the initial state of the flip mechanism in the present invention; Fig.14 It is a three-dimensional schematic diagram of the turning mechanism of the present invention in the turning process; Fig.15 It is a three-dimensional schematic diagram of the turning mechanism of the present invention after turning over; Fig.16 It is a front view schematic diagram of the flip assembly in the present invention; Fig.17 is a schematic diagram of the flipping of the flip assembly in the present invention; Fig.18 It is a schematic diagram of the installation of the roller assembly in the present invention.

[0021] The reference numerals in the accompanying drawings are: 1. Linear transmission mechanism; 11. Support frame; 12. First power source; 13. First force transmission shaft; 14. Driving wheel; 15. Driven wheel; 16. Belt; 17. Tensioning wheel; 2. Gantry; 3. Clamping mechanism; 31. Base; 32. First cylinder; 33. Clamping seat; 34. Second cylinder; 35. Movable clamping plate; 36. Third cylinder; 37. Lifting plate; 4. Turning mechanism; 41. Frame; 42. Fourth cylinder; 43. Sliding seat; 44. Second power source; 45. Second force transmission shaft; 46. ​​Turnover assembly; 461. Mounting base plate; 462. Fifth cylinder; 463. Turnover frame; 464. Fixing plate; 47. roller assembly; 471. sixth cylinder; 472. support plate; 473. roller; 5. profile. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the implementation of the present invention clearer, the technical solution in the embodiment of the present invention will be described in more detail below in conjunction with the drawings in the embodiment of the present invention. In the drawings, the same or similar reference numerals throughout represent the same or similar elements or elements with the same or similar functions; the described embodiments are part of the embodiments of the present invention, not all of the embodiments; the embodiments and directional terms described below with reference to the drawings are exemplary and intended to be used to explain the present invention, and cannot be understood as limitations on the present invention; based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. The embodiments of the present invention are described in detail below in conjunction with the drawings: The following is combined with Figure 1-Figure 18 The present invention is described in further detail: Embodiment 1 like Figure 1-Figure 4 As shown, this embodiment discloses a transmission device for an automatic production line of sawing, milling and drilling, including two rows of linear conveying mechanisms 1, a gantry 2, multiple columns of clamping mechanisms 3 and a flipping mechanism 4, the unloading end of the previous level linear conveying mechanism 1 is close to the loading end of the next level linear conveying mechanism 1, the unloading end of the last level linear conveying mechanism 1 is close to the flipping mechanism 4, the main beam of the gantry 2 is arranged across the top of the linear conveying mechanism 1, a plurality of groups of clamping mechanisms 3 are in a linear array, spaced apart between the linear conveying mechanisms 1, and the bottom of the clamping mechanism 3 is fixedly connected to the gantry 2 by fastening bolts.

[0023] like Figure 5-Figure 6As shown, the linear transmission mechanism 1 includes a supporting frame 11, a first power source 12, a first force transmission shaft 13 and a belt transmission assembly. The first power source 12 includes a servo motor and a reducer. The output shaft of the servo motor is driven to connect to the input end of the reducer, and the reducer is driven to connect to the first force transmission shaft 13. Multiple groups of belt transmission assemblies are in a linear array and are arranged in parallel on the first force transmission shaft 13. The belt transmission assemblies of two rows of linear transmission mechanisms 1 are arranged at intervals from each other.

[0024] like Figure 7-Figure 8 As shown, the belt drive assembly includes a driving wheel 14, a driven wheel 15, a belt 16 and a tensioning wheel 17. The driving wheel 14 is fixedly mounted on the first force transmission shaft 13, the driven wheel 15 is rotatably connected to the support frame 11 through a bearing seat, the belt 16 is hung between the driving wheel 14 and the driven wheel 15, and the tensioning wheel 17 is rotatably mounted on the connecting plate through the bearing seat. The connecting plate is fixedly connected to the support frame 11 by fastening bolts, and the tensioning wheel 17 contacts the inner ring of the belt 16.

[0025] like Figure 9-10 As shown, the clamping mechanism 3 is arranged at intervals between the belt transmission components of the linear transmission mechanism 1, and the clamping mechanism 3 includes a base 31, a first cylinder 32, a clamping seat 33, a second cylinder 34 and a movable clamping plate 35. The base 31 is fixedly connected to the gantry 2 by fastening bolts, the first cylinder 32 is vertically arranged, wherein the cylinder end is fixedly connected to the base 31, and the piston part on the other side is fixedly connected to the clamping seat 33 through a floating joint, the base 31 is provided with a slide rail, and the clamping seat 33 is slidably connected to the base 31 through a slider group and the first cylinder 32, and the second cylinder 34 is horizontally arranged, wherein the cylinder end is fixedly connected to the clamping seat 33, and the piston part on the other side passes through the clamping seat 33 and is fixedly connected to the movable clamping plate 35, the clamping seat 33 is provided with a slide rail, and the movable clamping plate 35 is slidably connected to the clamping seat 33 through a slider group and the second cylinder 34.

[0026] like Fig.11 As shown, the clamping mechanism 3 further includes a third cylinder 36 and a lifting plate 37 . The third cylinder 36 is vertically arranged, wherein one end of the cylinder body is fixedly connected to the base 31 , and the other side of the piston portion is fixedly connected to the lifting plate 37 .

[0027] like Figure 12-Figure 15As shown, the flipping mechanism 4 includes a frame 41, a fourth cylinder 42, a sliding seat 43, a second power source 44, a second force transmission shaft 45, a flipping assembly 46 and a roller assembly 47. The fourth cylinder 42 is horizontally arranged, wherein the cylinder end is fixedly connected to the frame 41, and the piston part on the other side is fixedly connected to the sliding seat 43 through a floating joint. A slide rail is arranged on the frame 41, and the sliding seat 43 is slidably connected to the frame 41 through a slider group and the fourth cylinder 42. The second power source 44 is fixedly connected to the sliding seat 43 through a mounting seat, wherein the reducer drive is connected to the second force transmission shaft 45. There are multiple groups of flipping assemblies 46, which are arranged in parallel on the second force transmission shaft 45 and are arranged at intervals between the belt drive assemblies. The roller assembly 47 is arranged on the frame 41.

[0028] like Figure 16-Figure 17 As shown, the flip assembly 46 includes a mounting base 461, a fifth cylinder 462, a U-shaped flip frame 463 and a fixed plate 464. The mounting base 461 is fixedly connected to the second force transmission shaft 45 through a bearing seat, the cylinder end of the fifth cylinder 462 is fixedly connected to the mounting base 461 through a connecting plate, and the piston part at the other end is fixedly connected to the flip frame 463. The mounting base 461 is installed with a slider group, and the flip frame 463 is provided with a slide rail matching the slider group. The flip frame 463 is slidably connected to the mounting base 461 through a guide rail pair and the fifth cylinder 462, and the fixed plate 464 is fixedly connected to the mounting base 461 by fastening bolts.

[0029] like Fig.18 As shown, the roller assembly 47 includes a sixth cylinder 471, a support plate 472, and a plurality of groups of rollers 473 in a linear array. The sixth cylinder 471 is vertically arranged, wherein the cylinder end is fixedly connected to the frame 41, and the piston portion on the other side is fixedly connected to the support plate 472, and the rollers 473 are rotatably connected to the support plate 472; the flip mechanism 4 is equipped with a plurality of groups of proximity switches, which are communicatively connected to the input end of the controller in the CNC center, and the fifth cylinder 462 and the second power source 44 are communicatively connected to the output end of the PLC controller respectively.

[0030] Embodiment 2 A profile turning method of a transmission device for a sawing, milling and drilling automatic production line of the present invention is as follows: Step 1: The profile 5 to be processed enters the transmission device through the loading end of the first-level linear transmission mechanism 1. The extension direction of the profile 5 is perpendicular to the transmission direction of the belt 16. The first power source 12 is started to output power to the first force transmission shaft 13. At the same time, the first force transmission shaft 13 drives the driving wheel 14 and the belt 16 to rotate. Multiple sets of parallel belts 16 rotate at the same time and transport the profile 5 to be processed, and are transported to the bottom of the processing center of the gantry 2 through the two-level linear transmission mechanism 1; Step 2: The first cylinder 32 in the clamping mechanism 3 is started, and the piston part is fed and drives the clamping seat 33 to adjust the height until the clamping seat 33 contacts the bottom surface of the profile 5. Then the piston part in the second cylinder 34 is fed and drives the movable clamping plate 35 to slide based on the clamping seat 33 until the profile 5 is completely clamped. The machining center performs sawing, milling and drilling of the profile 5. After completion, the cylinders in the clamping mechanism 3 return to their positions one after another, releasing the restriction on the profile 5, and the processed product contacts the belt 16 again. Step 3: The profile 5 is finally transported by the last-stage linear conveying mechanism 1 to the vicinity of the flipping mechanism 4. The height of the flipping frame 463 in the initial state is lower than the height of the belt conveying assembly to avoid the moving path of the profile 5. When the proximity switch at the front end of the flipping mechanism 4 detects that the profile 5 is approaching, it outputs a signal to the controller. The controller receives the signal and outputs a command to the second power source 44 to control the second power source 44 to start and output power to the second force transmission shaft 45. The second force transmission shaft 45 drives the flipping assembly 46 to rotate synchronously until the flipping assembly 46 rotates to a horizontal state. At this time, the profile 5 begins to contact the flipping frame 463. Step 4: The belt 16 continues to drive the profile 5 to move based on the turning frame 463. When the second group of proximity switches detects that the profile 5 is close to the fixing plate 464, a signal is output to the controller. The controller receives the signal and outputs a command to the fifth cylinder 462 to control the fifth cylinder 462 to start, and the piston part thereof advances, driving the turning frame 463 to slide based on the mounting base plate 461, thereby clamping the profile 5. Step 5: The fourth cylinder 42 is started, and the piston part thereof advances, driving the sliding seat 43 to slide based on the frame 41, so that the flip assembly 46 is close to the roller assembly 47; Step six: The second power source 44 continues to output power, driving the flip assembly 46 to a vertical state, and the sixth cylinder 471 in the roller assembly 47 is started, and the piston part thereof advances, driving the support plate 472 to slide based on the frame 41 until the roller 473 contacts the profile 5, and then the fifth cylinder 462 drives the flip frame 463 to return to its original position, releasing the clamping of the profile 5, and the profile 5 is placed on the roller 473, and the fourth cylinder 42 drives the sliding seat 43 to return to its original position, and the second power source 44 drives the flip assembly 46 to return to its original position, and finally the roller 473 transmits the profile 5.

[0031] Finally, it should be pointed out that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them. Although the present invention has been described in detail with reference to the above embodiments, a person skilled in the art should understand that the technical solutions described in the above embodiments can still be modified, or some of the technical features can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A transmission device for a sawing, milling and drilling automatic production line, characterized in that: It includes a multi-stage linear conveying mechanism, a gantry, a clamping mechanism and a flipping mechanism. The unloading end of the linear conveying mechanism of the previous stage is close to the loading end of the linear conveying mechanism of the next stage, and the unloading end of the linear conveying mechanism of the last stage is close to the flipping mechanism. The machining center in the gantry is arranged above the linear conveying mechanism. There are multiple groups of clamping mechanisms, which are arranged at intervals between the linear conveying mechanisms, and the clamping mechanisms are fixedly connected to the gantry.

2. A transmission device for a sawing, milling and drilling automatic production line according to claim 1, characterized in that: The linear transmission mechanism includes a support frame, a first power source, a first force transmission shaft and a belt transmission assembly. The first power source drives and connects the first force transmission shaft. The belt transmission assembly has multiple groups and is arranged in parallel on the first force transmission shaft.

3. A transmission device for a sawing, milling and drilling automatic production line according to claim 2, characterized in that: The belt drive assembly includes a driving wheel, a driven wheel, a belt and a tensioning wheel, the driving wheel is fixedly connected to the first force transmission shaft, the driven wheel is rotatably connected to the support frame, the belt is hung between the driving wheel and the driven wheel, the tensioning wheel is rotatably mounted on a connecting plate, the connecting plate is fixedly connected to the support frame, and the tensioning wheel contacts the inner ring of the belt.

4. The transmission device for a sawing, milling and drilling automatic production line according to claim 1, characterized in that: The clamping mechanism includes a base, a first cylinder, a clamping seat, a second cylinder and a movable clamping plate. The base is fixedly connected to the gantry, the two ends of the first cylinder are respectively fixedly connected to the base and the clamping seat, the clamping seat is movably connected to the base through a guide rail pair and the first cylinder, the two ends of the second cylinder are respectively fixedly connected to the clamping seat and the movable clamping plate, and the movable clamping plate is movably connected to the clamping seat through a guide rail pair and the second cylinder.

5. A transmission device for a sawing, milling and drilling automatic production line according to claim 4, characterized in that: The clamping mechanism also includes a third cylinder and a lifting plate, and two ends of the third cylinder are fixedly connected to the base and the lifting plate respectively.

6. The transmission device for a sawing, milling and drilling automatic production line according to claim 1, characterized in that: The flipping mechanism includes a frame, a fourth cylinder, a sliding seat, a second power source, a second force transmission shaft, a flipping assembly and a roller assembly. The two ends of the fourth cylinder are respectively fixedly connected to the frame and the sliding seat. The sliding seat is slidably connected to the frame through a guide rail pair and the fourth cylinder. The second power source is fixedly connected to the sliding seat through a mounting seat, and the second power source is driven to connect to the second force transmission shaft. The flipping assembly has multiple groups, which are arranged in parallel on the second force transmission shaft, and the roller assembly is arranged on the frame.

7. A transmission device for a sawing, milling and drilling automatic production line according to claim 6, characterized in that: The flip assembly includes a mounting base, a fifth cylinder, a flip frame and a fixed plate. The mounting base is fixedly connected to the second force transmission shaft through a bearing seat. Both ends of the fifth cylinder are respectively fixedly connected to the mounting base and the flip frame. The flip frame is movably connected to the mounting base through a guide rail pair and the fifth cylinder. The fixed plate is fixedly connected to the mounting base.

8. The transmission device for a sawing, milling and drilling automatic production line according to claim 6, characterized in that: The roller assembly includes a sixth cylinder, a support plate, and a plurality of rollers. Two ends of the sixth cylinder are respectively fixedly connected to the frame and the support plate, and the rollers are rotatably connected to the support plate.

9. The transmission device for a sawing, milling and drilling automatic production line according to claim 7, characterized in that: The flip mechanism is also equipped with a proximity switch, which is communicatively connected to the input end of the numerical control center controller, and the fifth cylinder and the second power source are communicatively connected to the output end of the controller respectively.

10. A profile turning method for a transmission device used in an automatic production line for sawing, milling and drilling, characterized in that: The profile turning step of the sawing, milling and drilling automatic production line described in claim 9 is: Step 1: The profile to be processed enters the transmission device from the loading end of the linear transmission mechanism, is transported by the multi-stage linear transmission mechanism, and then moves to the bottom of the gantry; Step 2: The cylinder in the clamping mechanism adjusts the feed to clamp the profile, and the machining center mounted on the gantry performs sawing, milling and drilling of the profile. After the machining is completed, the clamping mechanism returns to its original position; Step 3: The processed profile is transported to the flip mechanism by the linear transmission mechanism. The flip frame in the initial state avoids the moving path of the profile. When the frontmost proximity switch detects that the profile is approaching, it outputs a signal to the controller. The controller controls the start-up of the second power source. The second power source outputs power to drive the flip assembly to rotate to a horizontal state. Step 4: When the second group of proximity switches detects that the profile is close to the fixed plate, the controller outputs a command to the fifth cylinder to control the start of the fifth cylinder, and the fifth cylinder drives the turning frame to feed synchronously, thereby clamping the profile; Step 5: The fourth cylinder is started to drive the sliding seat to feed synchronously, so that the flip assembly is close to the roller assembly; Step 6: The second power source continues to output power, driving the flip assembly to rotate to a vertical state. The sixth cylinder starts, driving the rollers to rise synchronously until the rollers touch the profiles. Then the fifth cylinder returns to its position, releasing the clamping of the profiles. The fourth cylinder and the second power source return to their positions one after another, and the rollers transmit the profiles.

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