A profile sawing and milling machine

Abstract

The utility model discloses a profile sawing and milling machine, which comprises a frame, a profile channel for profile movement is arranged on the frame, a feeding device is arranged at the right end of the frame, a discharging device is arranged at the left end of the frame, the feeding device is provided with a feeding clamping device capable of driving the profile to move horizontally in the profile channel, a milling device and a sawing device located at both sides of the profile channel are arranged on the frame, four milling cutters capable of processing four end faces of the profile are arranged in the milling device, the milling cutters can move in the horizontal, longitudinal and vertical directions respectively, three saw blades capable of cutting the profile are arranged in the sawing device, and the sawing angles of the three saw blades are different. The utility model has the advantages of adapting to different processing requirements of profiles, occupying less space, saving costs, high efficiency, strong applicability, etc.

Description

Technical Field

[0001] The utility model relates to the field of profile processing equipment, in particular to a profile sawing and milling machine. Background Art

[0002] The frames of doors and windows are made of square tube-shaped blank aluminum alloy profiles. The profiles are sawed as needed, and holes or grooves are milled at the same time, and then the profiles are assembled into doors and windows. Due to the different styles of doors and windows, the demand for the diversity of different shapes of profiles has increased. The end faces of the profiles have different angle requirements, and different profiles have different milling requirements for the four end faces. In actual production, multiple sawing machines are required to cut different profiles. At the same time, in production, in order to mill grooves or holes on the four sides, the profiles need to be clamped and flipped to facilitate processing on different sides of the milling cutter. Multiple clamping and positioning are required, the production efficiency is low, and the processing error is large, which affects the subsequent assembly processing. The production of different profiles requires many machines and occupies a large space. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a profile sawing and milling machine which can meet the processing requirements of a variety of different profiles at the same time.

[0004] In order to solve the above technical problems, the utility model includes a frame, and its structural features are: the frame is provided with a profile channel for the movement of profiles, and its structural features are: a loading device is provided at the right end of the frame, and a discharging device is provided at the left end of the frame, the loading device is provided with a loading clamping device that can drive the profile to move horizontally in the profile channel, the frame is provided with a milling device and a sawing device located on both sides of the profile channel, the milling device is provided with four milling cutters that can respectively process the four end faces of the profile, and the milling cutters can move in the horizontal, longitudinal and vertical directions respectively, and the sawing device is provided with three saw blades that can cut the profile, and the sawing angles of the three saw blades are different.

[0005] After adopting the above structure, a processing support platform is provided on the frame, and the profile can move horizontally in the profile channel on the processing support platform. The unprocessed profile is placed in the loading device on the right, and the profile is driven to move in the profile channel by the loading device, and then passes through the milling device and the sawing device. The milling device and the sawing device are located on both sides of the profile channel, and the profile in the profile channel can be processed. The four milling cutters arranged in the milling device can perform milling processing on the four sides of the profile respectively, and at the same time, the four milling cutters can realize three directions of horizontal, longitudinal and vertical. The axis moves, and then moves according to the shape and end face to be processed. One or several end faces can be processed separately, which improves the applicability of the profile sawing machine. Holes and grooves can be processed as needed. After the profile enters the profile channel of the sawing device, as the profile moves horizontally, the two end faces of the profile are cut separately by the required saw blade to complete the processing of the profile. The three saw blades of the sawing device can be used according to the required shape of the profile, so as to process profiles of various shapes, reduce the space occupied by the machine, and improve economic benefits.

[0006] The sawing device includes a workbench installed on a frame and capable of supporting a profile, a sliding seat is provided at the front end of the workbench, the three saw blades include a vertical saw blade that can move in the forward and backward directions and an upper saw blade and a lower saw blade that can move up and down along the sliding seat, the blade face of the vertical saw blade is arranged vertically longitudinally, the upper saw blade and the lower saw blade are both arranged inclined, and the cutting surfaces of the upper saw blade and the lower saw blade are perpendicular to each other, a cutting groove for avoiding the saw blade is provided on the workbench, a clamping device that can clamp and position the profile is provided on the workbench, and the profile channel is located on the workbench, after the profile is transported horizontally to the workbench, when the end face needs to be inclined, the upper saw blade or the lower saw blade moves up and down along the sliding seat to cut the profile, and when the profile needs to have a vertical end face, the profile is cut by moving the vertical saw blade back and forth.

[0007] An upper counterweight block and a lower counterweight block that can move up and down are installed on the sliding seat, and fixed pulleys are provided above the upper counterweight block and the lower counterweight block. The upper saw blade is installed on the upper saw blade seat and the upper saw blade seat can move up and down. The upper counterweight block is connected to the upper saw blade seat by passing through the fixed pulley via a connecting rope. The lower saw blade is installed on the lower saw blade seat and the lower saw blade seat can move up and down. The lower counterweight block is connected to the lower saw blade seat by passing through the fixed pulley via a connecting rope. By adjusting the positions of the upper counterweight block and the lower counterweight block, and then adjusting the positions of the upper and lower saw blade seats respectively through the fixed pulley, the upper and lower saw blade seats are convenient for cutting the profiles. The upper and lower saw blade seats can slide more smoothly, and the positioning of the upper and lower saw blades is more accurate. At the same time, the installation space of the driving device is reduced, saving the occupied space of the profile sawing and milling machine.

[0008] The cutting surfaces of the upper saw blade and the lower saw blade are inclined at 45° relative to the longitudinal direction, so the end face of the profile can be processed at 45°, which is suitable for the end face requirements of most profiles and improves the processing efficiency.

[0009] The milling device includes a milling frame that can move left and right, and the milling frame is provided with a first milling cutter seat and a second milling cutter seat that can move forward and backward. The first milling cutter seat is located at the front side of the profile channel, and the first milling cutter seat is equipped with two milling cutters that can move up and down and can move forward and backward. The two milling cutters on the first milling cutter seat are vertically arranged between them and can process two adjacent end faces of the profile. The second milling cutter seat is located at the rear side of the profile channel, and the second milling cutter seat is equipped with two milling cutters that can move up and down and can move forward and backward. The two milling cutters on the second milling cutter seat are vertically arranged between them and can process the remaining two end faces of the profile. The end face of the profile is processed by the milling cutter, and the two milling cutters on the first milling cutter seat The two adjacent end faces can be processed perpendicular to each other, and the first milling cutter seat can move left and right, driving the milling cutter on the first milling cutter seat to move left and right. At the same time, the milling cutter itself can also move up and down and backward, and then move close to the profile to process the profile. The two milling cutters configured on the second milling cutter seat process the remaining two end faces perpendicular to each other. The four saw blades can move separately to process a certain end face as needed, which improves applicability. When the first milling cutter seat and the second milling cutter seat can move back and forth, the milling cutter can also move back and forth, which increases the distance of the milling cutter moving back and forth. At the same time, when the milling cutter of a milling cutter seat is processing, the other milling cutter can avoid it, which improves the diversity of processed end faces.

[0010] The first milling cutter seat is equipped with a front milling cutter that can process the front end face of the profile and a lower milling cutter that can process the lower end face of the profile. The second milling cutter seat is equipped with a rear milling cutter that can process the rear end face of the profile and an upper milling cutter that can process the upper end face of the profile. The front milling cutter, the lower milling cutter, the rear milling cutter and the upper milling cutter respectively process the four end faces, thereby improving the processing efficiency.

[0011] Positioning devices capable of fixing the position of the profile are provided on the left and right sides of the milling device.

[0012] The positioning device includes two transverse rollers, a vertical roller and a fixed block installed on a frame. The two transverse rollers are arranged horizontally and are respectively located at the upper and lower ends of the profile channel. The vertical roller is located at the front side of the profile channel. The frame is provided with a fixed block that can move forward and backward to push the profile to fit the vertical roller.

[0013] After adopting the above structure, the position of the profile is positioned by the positioning device to ensure that the profile is placed horizontally in the profile channel, the front end position of the profile is determined by two vertical rollers, the height of the profile is determined by two horizontal rollers, and the profile is attached to the vertical rollers by a fixing block. The position of the profile is fixed during milling, thereby ensuring the processing accuracy and stability and the quality of the finished product.

[0014] In summary, the utility model has the advantages of adapting to different processing requirements of profiles, occupying a small space, saving costs, being highly efficient, and having strong applicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the utility model;

[0016] Figure 2 for Figure 1 Schematic diagram of the structure from a bird's-eye view;

[0017] Figure 3 It is a schematic diagram of the structure of the milling device and the sawing device;

[0018] Figure 4 for Figure 3 Schematic diagram of the structure from a bird's-eye view;

[0019] Figure 5 for Figure 3 A schematic diagram of the mechanism from the rear view;

[0020] Figure 6 It is a three-dimensional structural schematic diagram of a milling device;

[0021] Figure 7 It is a three-dimensional structural schematic diagram of a sawing device;

[0022] Figure 8 It is a three-dimensional structural schematic diagram of the sawing device from another angle. DETAILED DESCRIPTION

[0023] like Figure 1 , 2 As shown, a profile sawing and milling machine includes a frame 1, a workbench for profiles to run horizontally is provided on the frame 1, and a profile channel for profiles to run is provided on the workbench. A loading device 2, a milling device 4, a sawing device 5 and a discharging device 3 are provided on the frame 1. For the convenience of description, Figure 1 The left side is left, the right side is right, Figure 1 Vertically inwards is the front. Figure 1The direction perpendicular to the paper plane is outward. The left-right direction is the horizontal direction, and the front-back direction is the longitudinal direction. A loading device 2 is provided on the right side of the frame 1. The loading device 2 can store the profiles and transport the profiles horizontally in the profile channel. A milling device 4 and a sawing device 5 are provided on both sides of the profile channel. The milling device 4 can perform milling processing on the end face of the profile, and can process grooves, holes, etc. on the profile by milling as needed. The milling device 4 is provided with four milling cutters with different angles. The four milling cutters can perform milling processing on the four sides of the profile respectively. It can process only one end face or multiple end faces at the same time, which increases the applicability of the equipment. The milled profile is then transported to the sawing device 5. The sawing device 5 is equipped with three saw blades with different angles. According to the required sawing angle of the profile, saw blades with different angles are used for sawing respectively. After the sawing is completed, the profile is transported to the discharging device 3 to complete the production and processing of the profile. By setting milling cutters at different angles and saws at different angles, processing can be performed according to the required shape of the profile. The equipment has strong applicability and high production efficiency. It does not need to be moved and then positioned, which improves the processing accuracy of the profile, while reducing the space occupied by the equipment and improving economic benefits.

[0024] like Figure 1 , 2 As shown, the feeding mechanism includes a storage mechanism that can store profiles, and a feeding clamping device 21 that can push the profiles to move horizontally is provided on the upper side of the front part of the storage mechanism. The storage mechanism includes a plurality of longitudinal transmission belts arranged on the frame 1, and a material baffle plate is provided at the front end of the transmission belt. The plurality of transmission belts can support a plurality of profiles. Profiles of different lengths can be supported by different numbers of transmission belts, thereby improving the adaptability of the profiles. The transmission belt rotates to drive the profiles to move forward, and the front and rear positions of the profiles are determined by the material baffle plate, thereby ensuring that the position of the profiles is fixed when entering the milling device 4 and the sawing device 5, thereby ensuring the accuracy of the position of the profile sawing and milling, and ensuring the processing quality of the profiles. The feeding clamping device 21 includes a clamping component that can move left and right along a slide groove that is arranged horizontally on the frame 1 and along the slide groove. The clamping component can move up and down while sliding left and right, thereby adapting to the clamping needs of profiles of different sizes. The edge of the profile is clamped by the clamping component, and the feeding clamping device 21 slides left and right along the slide groove to drive the profile to move in the profile channel. At the same time, the feeding mechanism is also provided with a positioning device that can locate the position of the profile. When the profile moves, the position of the profile in the milling device 4 and the sawing device 5 is determined by locating the position of the center column angle code, thereby determining the position of the milling processing and the position of the end face.

[0025] like Figure 3-6As shown, two positioning devices 44 are provided, which are respectively located on both sides of the milling device 4. The positioning device 44 determines the front and rear positions of the profile while ensuring the lateral setting of the profile, further ensuring the accuracy of profile processing. The positioning mechanism includes a transverse roller 441 located on the upper and lower sides of the profile channel, a vertical roller 442 that can determine the front and rear positions of the profile, and a fixed block 443 located on the rear side of the profile channel that can move forward and backward. The fixed block 443 moves forward and backward to clamp the profile so that the front end surface of the profile can fit the vertical roller 442, further determining the front and rear positions of the profile. At the same time, the transverse roller 441 and the vertical roller 442 can both rotate along the axis. When the profile needs to move, the fixed block 443 is loosened to reduce the friction when the profile moves horizontally, facilitating the movement of the profile.

[0026] like Figure 1-6As shown, the milling device 4 includes a milling frame 41 that can move left and right, and a screw that drives the milling frame 41 to move left and right is installed under the milling frame 41. Guide rails arranged in the left and right directions are installed on the frame 1, and a groove that can be mounted on the guide rail and slide along the guide rail is provided under the milling frame 41. A first milling cutter seat 421 and a second milling cutter seat 422 that can move forward and backward are installed on the milling frame 41, and the first milling cutter seat 421 is located at the front side of the second milling cutter seat 422, and the first milling cutter seat 421 is located at the front side of the transportation space, and the second milling cutter seat 422 is located at the rear side of the transportation space. If the cross section of the profile is a quadrilateral, two milling cutters are installed on the first milling cutter seat 421 and the second milling cutter seat 422 respectively, and the four milling cutters can respectively mill the upper, lower, front and rear surfaces of the profile groove. In this embodiment, a front milling cutter 431 and a lower milling cutter 432 that can move up and down and forward and backward are installed on the first milling cutter seat 421, and a rear milling cutter 433 and an upper milling cutter 434 that can move up and down and forward and backward are installed on the second milling cutter seat 422. A front plate 461 that can move up and down is installed on the first milling cutter seat 421, and a front milling cutter seat 451 and a lower milling cutter seat 452 that can move forward and backward are installed on the front plate 461. A front milling cutter 431 that can mill the front end face of the profile is installed on the front milling cutter seat 451, and a lower milling cutter 432 that can mill the lower end face of the profile is installed on the lower milling cutter seat 452. If the front milling cutter 431 is set longitudinally backward, the front milling cutter 431 can process the front end face of the profile, and if the lower milling cutter 432 is set vertically upward, the lower milling cutter 432 can process the lower end face of the profile. A linear module in the front and rear direction is provided between the front milling cutter seat 451 and the front plate 461, and the linear module includes a track in the front and rear direction, and the front milling cutter seat 451 can move forward and backward along the track. A linear module in the front and rear direction is also installed between the lower milling cutter seat 452 and the front plate 461, and the lower milling cutter seat 452 moves forward and backward along the track. The lower milling cutter seat 452 is located at the lower side of the front track seat, the lower milling cutter 432 is arranged in the vertical direction, and the front milling cutter 431 is arranged in the front and rear direction. The left and right positions of the lower milling cutter 432 and the front milling cutter 431 are adjusted by moving the first milling cutter seat 421 in the left and right directions, and the up and down movement of the lower milling cutter 432 and the front milling cutter 431 can be adjusted by moving the front plate 461 up and down. The front and rear movement of the lower milling cutter 432 is adjusted by moving the lower milling cutter seat 452 forward and backward, and the front milling cutter 431 is adjusted by moving the front and rear of the front milling cutter seat 451. The second milling cutter seat 422 is provided with a rear plate 462 that can move up and down, and the rear milling cutter seat 453 and the upper milling cutter seat 454 that can move forward and backward are provided on the rear plate 462. The rear milling cutter seat 453 is provided with a rear milling cutter 433 that can mill the rear end face of the profile, and the upper milling cutter seat 454 is provided with an upper milling cutter 434 that can mill the upper end face of the profile. The rear milling cutter 433 is longitudinally arranged forward, so that the rear milling cutter 433 can process the rear end face of the profile. The upper milling cutter 434 is vertically arranged downward, so that the upper milling cutter 434 can process the upper end face of the profile.A linear module in the front-to-back direction is provided between the rear milling cutter seat 453 and the rear plate 462, and a linear module in the front-to-back direction is provided between the upper milling cutter seat 454 and the rear plate 462. A linear module driving device is provided at the rear side of the rear milling cutter seat 453 and the upper milling cutter seat 454 to drive the rear milling cutter seat 453 and the upper milling cutter seat 454 to move forward and backward, thereby ensuring the front-to-back movement of the rear milling cutter 433 and the upper milling cutter 434. The rear plate 462 moves up and down, driving the upper and lower positions of the rear milling cutter 433 and the upper milling cutter 434. The milling frame 41 drives the second milling cutter seat 422 to move in the left and right directions, driving the rear milling cutter 433 and the upper milling cutter 434 to move left and right. Then the front milling cutter 431, the rear milling cutter 433, the upper milling cutter 434, and the lower milling cutter 432 in the milling cutter device can all realize three-axis movement in the longitudinal, transverse, and up and down directions. The required holes or grooves can be processed on each end face of the profile as needed, the positions of the four milling cutters can be controlled separately, and one end face or several end faces can be processed separately, which increases the applicability of the profile milling and sawing machine, can be used for profiles of more sizes, and can process various sizes at the same time, thereby improving economic benefits.

[0027] like Figure 3-5As shown in Figures 7 and 8, a workbench capable of supporting the profile and moving horizontally is provided on the frame 1, and a sawing device 5 can saw the profile on the workbench. The sawing device 5 includes a vertical saw blade 54 that can move forward and backward, and two inclined saw blades that can move up and down. The inclined saw blades include an upper saw blade 52 and a lower saw blade 53. A sliding seat 51 is provided at the front end of the workbench, and an upper saw blade seat 522 and a lower saw blade seat that can move up and down are installed on the sliding seat 51. A cutting groove 55 for avoiding the saw blade is provided on the workbench, and a clamping device 56 that can clamp and position the profile is provided on the workbench. The upper saw blade seat 522 is located above the lower saw blade seat and the upper saw blade seat 522 is spaced apart from the lower saw blade seat. An upper saw blade 52 arranged in an inclined manner is installed on the upper saw blade seat 522. A lower saw blade 53 that is inclined is installed on the lower saw blade seat. The lower saw blade 53 and the upper saw blade 52 have different inclination angles, so cutting can be performed according to the angle required by the edge of the profile. In this embodiment, the planes where the cutting surfaces of the upper saw blade 52 and the lower saw blade 53 are located are vertical, and the upper saw blade 52 and the lower saw blade 53 are respectively inclined at 45 degrees to the advancing direction of the profile. Then the upper saw blade 52 and the lower saw blade 53 can cut the 45-degree end faces of the profile respectively. Two fixed pulleys 57 are provided on the sliding seat 51, and the two fixed pulleys 57 include an upper fixed pulley 57 located above the upper saw blade seat 522, and a lower fixed pulley 57 located above the lower saw blade seat. An upper counterweight block 521 and a lower counterweight block 531 that can slide up and down are installed on the front end surface of the sliding seat 51. A vertically arranged guide rail is installed on the front end surface of the sliding seat 51, and the guide rail includes two rails, which are respectively located on the left and right parts of the counterweight block. The upper counterweight 521 and the lower counterweight 531 are provided with sliders that can slide along the guide rails. The upper end of the upper counterweight 521 is provided with an upper driving mechanism that drives the upper counterweight 521 to slide along the guide rails. A connecting rope that bypasses the upper fixed pulley 57 is connected between the upper counterweight 521 and the upper saw blade seat 522. The lower end of the lower counterweight 531 is provided with a lower driving structure that drives the lower counterweight 531 to slide along the guide rails. A connecting rope that bypasses the lower fixed pulley 57 is connected between the lower counterweight 531 and the lower saw blade seat. When the upper counterweight 521 moves downward, it drives the connecting rope to move, and drives the upper saw blade seat 522 to move upward through the rotation of the fixed pulley 57. When the upper counterweight 521 moves upward, the connecting rope slides along the fixed pulley 57, driving the upper saw blade seat 522 to move downward. When the upper saw blade 52 moves downward into the cutting groove 55 along with the upper saw blade seat 522, it cuts the profile in the cutting groove 55. After cutting, the upper counterweight 521 moves downward to lift the upper saw blade 52, which is convenient for transporting and loading the profile. When the lower counterweight 531 moves downward, the lower counterweight 531 drives the connecting rope to pull the lower saw blade seat upward through the fixed pulley 57, driving the lower saw blade seat to move upward, and then driving the lower saw blade 53 upward into the cutting groove 55 to cut the profile in the cutting groove 55. When the lower counterweight block 531 moves upward along the guide rail, the lower saw blade seat moves downward and exits the cutting groove 55, which facilitates the transportation of the cut profiles and the subsequent loading of the profiles.By means of the fixed pulley 57 and the counterweight, the upper saw blade seat 522 and the lower saw blade seat can slide more smoothly, while reducing the power output and making the positioning of the upper saw blade 52 and the lower saw blade 53 more accurate.

[0028] like Figure 3-5 As shown in , 7 and 8, a cutting groove 55 is provided on the workbench, and the cutting groove 55 is used to avoid the saw blade and saw the profile on the workbench. A positioning device 44 capable of positioning the profile is provided on the workbench, and the position of the profile in the cutting groove 55 is determined by the positioning device 44, and the profile is cut out by the saw blade passing through the cutting groove 55. The cutting process of the profile is completed. The clamping device 56 includes a baffle plate installed on the workbench and a clamping frame 562 installed on the frame 1, and the clamping frame 562 is provided with a clamping seat 563 that moves left and right, and the clamping seat 563 is provided with a clamping block 564 that is inclined and can move in an inclined direction. The front end face of the clamping block 564 is parallel to the front and rear end faces of the profile, and the bottom end face of the clamping face fits the workbench. When the clamping block 564 moves forward at an angle, the front end face of the clamping block 564 fits the rear end face of the profile, and the baffle plate fits the front end face of the profile. The clamping block 564 and the baffle plate together play a clamping role, ensuring the stability of the profile during sawing and the quality of the finished product. When the clamping block 564 moves backward at an angle, the clamping is released, and the profile can continue to move horizontally left and right in the profile channel.

[0029] like Figure 1-2 As shown, the discharging device 3 includes a plurality of longitudinal transmission belts that can be arranged on the frame 1, and the plurality of transmission belts can support a plurality of profiles. Different numbers of transmission belts can support profiles of different lengths, thereby improving the adaptability of the profiles. After the profile processing is completed, the processed profile moves to the left and then falls onto the discharging device 3. As the transmission belt drives the processed profile to move backward, a plurality of processed profiles can be stored and transported in the discharging device 3, thereby improving the processing efficiency.

Claims

1. A profile sawing and milling machine, comprising a frame (1), the frame (1) being provided with a profile channel for profile movement, wherein: A loading device (2) is provided at the right end of the frame (1), and a discharging device (3) is provided at the left end of the frame (1); the loading device (2) is provided with a loading clamping device (21) capable of driving the profile to move horizontally in the profile channel; the frame (1) is provided with a milling device (4) and a sawing device (5) located on both sides of the profile channel; the milling device (4) is provided with four milling cutters capable of processing four end faces of the profile respectively, and the milling cutters can move in the horizontal, longitudinal and vertical directions respectively; the sawing device (5) is provided with three saw blades capable of cutting the profile, and the sawing angles of the three saw blades are different.

2. The profile sawing and milling machine according to claim 1, characterized in that: The sawing device (5) comprises a workbench mounted on a frame (1) and capable of supporting a profile, a sliding seat (51) being provided at the front end of the workbench, the three saw blades comprising a vertical saw blade (54) capable of moving in a forward and backward direction, and an upper saw blade (52) and a lower saw blade (53) capable of moving up and down along the sliding seat (51), the blade surface of the vertical saw blade (54) being arranged vertically in the longitudinal direction, the upper saw blade (52) and the lower saw blade (53) being arranged obliquely, and the cutting surfaces of the upper saw blade (52) and the lower saw blade (53) being perpendicular to each other, a cutting groove (55) for avoiding the saw blade being provided on the workbench, and a clamping device (56) capable of clamping and positioning the profile being provided on the workbench.

3. The profile sawing and milling machine according to claim 2, characterized in that: An upper counterweight (521) and a lower counterweight (531) are mounted on the sliding seat (51) and are movable up and down. Fixed pulleys (57) are arranged above the upper counterweight (521) and the lower counterweight (531). The upper saw blade (52) is mounted on an upper saw blade seat (522) and the upper saw blade seat (522) is movable up and down. The upper counterweight (521) is connected to the upper saw blade seat (522) by a connecting rope passing around the fixed pulley (57). The lower saw blade (53) is mounted on a lower saw blade seat and the lower saw blade seat is movable up and down. The lower counterweight (531) is connected to the lower saw blade seat by a connecting rope passing around the fixed pulley (57).

4. The profile sawing and milling machine according to claim 2, characterized in that: The cutting surfaces of the upper saw blade (52) and the lower saw blade (53) are inclined at 45 degrees relative to the longitudinal direction.

5. The profile sawing and milling machine according to claim 1, characterized in that: The milling device (4) comprises a milling frame (41) that can move left and right, and a first milling cutter seat (421) and a second milling cutter seat (422) that can move forward and backward are provided on the milling frame (41), the first milling cutter seat (421) being located at the front side of the profile channel, and two milling cutters that can move up and down and forward and backward are installed on the first milling cutter seat (421), and the two milling cutters on the first milling cutter seat (421) are vertically arranged between each other and can process two adjacent end faces of the profile, and the second milling cutter seat (422) is located at the rear side of the profile channel, and the second milling cutter seat (422) is installed with two milling cutters that can move up and down and forward and backward, and the two milling cutters on the second milling cutter seat (422) are vertically arranged between each other and can process the remaining two end faces of the profile.

6. The profile sawing and milling machine according to claim 5, characterized in that: The first milling cutter seat (421) is provided with a front milling cutter (431) capable of processing the front end face of the profile and a lower milling cutter (432) capable of processing the lower end face of the profile, and the second milling cutter seat (422) is provided with a rear milling cutter (433) capable of processing the rear end face of the profile and an upper milling cutter (434) capable of processing the upper end face of the profile.

7. The profile sawing and milling machine according to claim 1, characterized in that: Positioning devices (44) capable of fixing the position of the profile are provided on the left and right sides of the milling device (4).

8. The profile sawing and milling machine according to claim 7, characterized in that: The positioning device (44) comprises two transverse rollers (441), a vertical roller (442) and a fixed block (443) mounted on a frame (1); the two transverse rollers (441) are arranged transversely and are respectively located at the upper end and the lower end of the profile channel; the vertical roller (442) is located at the front side of the profile channel; and the frame (1) is provided with a fixed block (443) capable of moving forward and backward to push the profile to fit the vertical roller (442).

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