Sawing and milling machining unit suitable for curtain wall profile, machining center and working method

Abstract

The invention relates to a sawing and milling machining unit, a machining center and a working method suitable for curtain wall profiles, a milling machining mechanism is used for achieving sawing machining or milling machining, a sawing and milling clamp is used for clamping and fixing the profiles in the vertical direction and the horizontal direction, and a pressing block of the sawing and milling clamp is driven by an air cylinder to clamp the profiles in the vertical direction and the horizontal direction. The vertical pressing mechanism moves towards the fixed roller in the vertical direction to vertically press the profile to be machined; the cross section of each fixed roller is semicircular, a plurality of groups of air holes which are arranged in parallel are formed in the semicircular area, the connecting line of the plurality of groups of air holes is positioned on one side of the axis of the fixed roller, and the connecting line of the air holes in two adjacent groups of fixed rollers forms an angle alpha of 100-120 degrees in the cross section direction of the fixed roller. In the section feeding and processing period, air is sprayed out through the fixed roller, an air cushion is formed on the bottom face of the section, the pressure of the dead weight of the section on the surface of the fixed roller is reduced, meanwhile, aluminum skimmings on the bottom face of the section are blown away, and the scratch problem caused by sliding friction between the section and the fixed roller is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of profile processing and manufacturing, and particularly to a sawing and milling processing unit, a processing center and a working method suitable for curtain wall profiles. Background Art

[0002] The statements in this part only provide background technical information related to the present invention and do not necessarily constitute prior art.

[0003] Compared with conventional door and window profiles, the curtain wall profiles in construction projects are larger in size and thickness to meet the requirements of wind pressure, seismic load and structural strength of high-rise buildings.

[0004] For example, the cross-sectional size of curtain wall profiles is more than 100 mm, and the wall thickness is commonly 2.5 - 12 mm, or even thicker; the cross-section of conventional door and window profiles is between 50 - 80 mm, and the wall thickness is between 1.4 - 2.0 mm.

[0005] During the processing of curtain wall profiles, the profiles need to be clamped and fixed before various processing operations (such as drilling, sawing, milling, etc.). During the processing, the generated chips will enter between the fixture and the profile surface along with the processing. With the relative movement between the profile and the fixture, the profile surface will be scratched.

[0006] The prior art has designed various measures for the surface protection of profiles during processing. For example, low-hardness materials are used in the fixture to contact the profile, or the fixture structure is designed as rolling friction relative to the profile instead of sliding friction. These methods try to reduce the degree of scratching of the profile surface by chips to ensure the processing quality of the profile, but the effect is limited. When processing curtain wall profiles, due to the much larger volume and wall thickness of curtain wall profiles than common profiles, the contact area and contact pressure between curtain wall profiles and various fixtures are very high, and the methods of the prior art are difficult to achieve an ideal effect.

[0007] In addition, some prior arts will cover a protective film (PE protective film or PET film) on the blank surface before profile processing. Although this kind of protective film can reduce the surface scratching during processing, handling or storage to a certain extent, due to the larger size and wall thickness of curtain wall profiles, the milling, stamping and other process actions brought by each processing mechanism during processing are more intense, and the generated aluminum chips may penetrate or embed between the film and the profile, which will instead exacerbate the scratching. Therefore, for curtain wall profiles, the method of covering the film is also difficult to achieve an ideal effect. Summary of the Invention

[0008] To solve the technical problems existing in the above-mentioned background art, the present invention provides a sawing and milling processing unit, a machining center and a working method applicable to curtain wall profiles. During the feeding and processing of the profiles, the fixed rollers in the fixture form an "air cushion" on the bottom surface of the profile by ejecting gas, reducing the pressure of the self-weight of the profile on the surface of the fixed rollers, and at the same time blowing away the aluminum chips on the bottom surface of the profile, solving the scratching problem caused by sliding friction between the profile and the fixed rollers.

[0009] To achieve the above object, the present invention adopts the following technical solutions:

[0010] The first aspect of the present invention provides a sawing and milling processing unit applicable to curtain wall profiles, including a sawing and milling mechanism and at least two groups of sawing and milling fixtures arranged in parallel. The milling processing mechanism is used to realize sawing processing or milling processing, and the sawing and milling fixtures are used to clamp and fix the profiles in the vertical and horizontal directions, including a first vertical pressing mechanism, a horizontal clamping mechanism and a second vertical pressing mechanism arranged in parallel on the slide plate;

[0011] In the first vertical pressing mechanism, the pressing roller moves towards the supporting roller in the vertical direction under the drive of the cylinder to realize the vertical pressing of the profile to be processed;

[0012] In the horizontal clamping mechanism, the backing plate moves towards the supporting wheel in the horizontal direction under the drive of the cylinder to realize the horizontal clamping of the profile to be processed;

[0013] In the second vertical pressing mechanism, the pressing block moves towards the fixed roller in the vertical direction under the drive of the cylinder to realize the vertical pressing of the profile to be processed; the cross-section of the fixed roller is semi-circular, and a plurality of groups of air holes arranged in parallel are provided in the semi-circular area. The connection line of the plurality of groups of air holes is located on one side of the axis of the fixed roller. The angle α formed by the connection lines of the air holes in two adjacent groups of fixed rollers in the cross-section direction of the fixed roller ranges from 100° to 120°.

[0014] Further, the sawing and milling fixture includes a base connected to the base, and a slide rail is provided on the top of the base. The slide rail is slidably connected to the lower surface of the slide plate.

[0015] Further, the slide plate drives the first vertical pressing mechanism, the horizontal clamping mechanism and the second vertical pressing mechanism on the slide plate to move along the profile feeding direction through a ball screw mechanism, and the ball screw mechanism is arranged on the base.

[0016] Further, the first vertical pressing mechanism includes a supporting roller arranged on the upper surface of the slide plate. A pressing roller is provided in the space above the supporting roller. Both the supporting roller and the pressing roller can rotate. Both ends of the pressing roller are connected to the corresponding pressing cylinders through brackets. The pressing cylinders act in the vertical direction to drive the pressing roller to move towards the direction close to the supporting roller to press the profile in the vertical direction.

[0017] Further, the horizontal clamping mechanism includes a backing plate arranged on one side of the backing wheel. The area where the backing wheel contacts the side surface of the profile is coplanar with the backing plate. The backing plate and the clamping plate are arranged opposite to each other. The clamping plate is driven by a clamping cylinder that moves along the horizontal direction and moves towards the backing plate to clamp the profile horizontally.

[0018] Further, the clamping cylinder includes a first clamping cylinder and a second clamping cylinder that move along the horizontal direction. The two sets of clamping cylinders and the clamping plate all move along a slide rail arranged in the horizontal direction. Corresponding sliders are provided on the slide rail. Among them, the fixed end of the first clamping cylinder is connected to slider A, and the moving end pushes the clamping plate to move. The fixed end of the second clamping cylinder is connected to the end of the slide rail, and the moving end pushes slider B together with slider A where the first clamping cylinder is located to act together. The moving strokes of the two sets of clamping cylinders are different.

[0019] Further, air pipe connectors are provided on both end faces of the fixed roller for connecting to a compressed air source; a strip-shaped groove is provided in the planar area of the fixed roller. The bottom of the strip-shaped groove is communicated with the air holes, and both ends are communicated with the air pipe connectors.

[0020] The second aspect of the present invention provides a profile processing center, including a base. A gantry A and a gantry B arranged in parallel are provided on the upper surface of the base. A drilling and milling unit is provided outside the gantry A. The space between the gantry A and the gantry B accommodates a sawing and milling unit.

[0021] The third aspect of the present invention provides a working method for a sawing and milling processing unit suitable for curtain wall profiles, including the following steps:

[0022] The profile is fed into the sawing and milling unit 5 along the X direction for sawing and milling processing. During the feeding period, the first vertical pressing mechanism maintains the pressing state, and the air holes on the fixed roller maintain the air jet state. After the profile runs to the sawing and milling processing position along the x direction, the profile stops running;

[0023] The slide plate acts to make the corresponding sawing and milling fixture approach the sawing and milling processing position to a set distance. The horizontal clamping mechanism and the second vertical pressing mechanism act to fix the profile, and the sawing and milling processing starts;

[0024] After the sawing and milling is completed, the front section of the profile is taken out and unloaded by the gripper at the discharging end.

[0025] Compared with the prior art, the above one or more technical solutions have the following beneficial effects:

[0026] 1. During the profile feeding process, the profile passes through the first vertical pressing mechanism, the horizontal clamping mechanism, and the second vertical pressing mechanism in sequence. Among them, the support roller and the pressing roller of the first vertical pressing mechanism form rolling friction rather than sliding friction with the profile surface. Even if there are aluminum chips on the profile surface, it is not easy to scratch the profile surface. In the second vertical pressing mechanism, the air flow blown out from the air holes in the two groups of fixed rollers blows onto the lower surface of the profile to form an "air cushion". The existence of the "air cushion" can reduce the pressure borne by the fixed rollers to a certain extent, and thus reduce the friction between the bottom surface of the profile and the surface of the fixed rollers. At the same time, before the profile passes through the fixed rollers, the "air cushion" can blow away the aluminum chips on the bottom surface of the profile, reducing the probability of aluminum chips adhering to the bottom surface of the profile, thereby solving the scratching problem.

[0027] 2. External compressed gas enters the strip-shaped groove of the fixed roller through the trachea joint. The strip-shaped groove forms a gas storage cavity, enabling the compressed gas to be blown out from each air hole in a relatively uniform state, ensuring the reliability of the formed "air cushion".

[0028] 3. The sawing and milling fixture clamps the profile in both vertical and horizontal directions, and can move a certain distance along the feeding direction of the profile while maintaining the clamping state, ensuring that the distance between the clamping position and the sawing and milling processing position is close enough, so as to obtain a better support effect and higher sawing and milling processing quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The accompanying drawings forming a part of this invention are used to provide a further understanding of the invention. The schematic embodiments and descriptions thereof of the invention are used to explain the invention and do not constitute an improper limitation of the invention.

[0030] Figure 1 is a schematic diagram of the internal structure of the machining center provided by one or more embodiments of the invention;

[0031] Figure 2 is a schematic diagram of the structure of the sawing and milling unit provided by one or more embodiments of the invention;

[0032] Figure 3 is a schematic diagram of the structure of the sawing and milling fixture from the first perspective provided by one or more embodiments of the invention;

[0033] Figure 4 is a schematic diagram of the structure of the sawing and milling fixture from the second perspective provided by one or more embodiments of the invention;

[0034] Figure 5 is a schematic diagram of the structure of the fixed roller in the sawing and milling fixture provided by one or more embodiments of the invention;

[0035] Figure 6 is a schematic diagram of the structure of the back of the fixed roller in the sawing and milling fixture provided by one or more embodiments of the invention.

[0036] Figure 1 - Figure 2 Among them: 1 base, 2 gantry A, 3 gantry B, 4 drilling and milling unit, 41 follow-up fixture, 5 sawing and milling unit, 51 first sawing and milling fixture, 52 second sawing and milling fixture, 53 first sawing and milling processing mechanism, 54 second sawing and milling processing mechanism;

[0037] Figure 3 - Figure 4 Among them: 511 base, 512 ball screw mechanism, 513 slide rail, 514 slide plate, 515 support roller, 516 pressing roller, 517 follower wheel, 518 backing plate, 519 clamping plate, 5110 pressing block, 5111 first clamping cylinder, 5112 second clamping cylinder, 5113 first pressing cylinder, 5114 second pressing cylinder, 5115 fixed roller. Specific implementation mode

[0038] The present invention will be further described below in conjunction with the drawings and embodiments.

[0039] It should be noted that the following detailed descriptions are all exemplary and are intended to provide further explanations of the present invention. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present invention belongs.

[0040] In the following embodiments, the length direction of the profile is the x-axis or x-direction, the width direction is the y-axis or y-direction, and the height direction is the z-axis or z-direction, and the three directions are perpendicular to each other.

[0041] Unless specifically specified, the "profile" mentioned in the following embodiments all refers to the "curtain wall profile", that is, an aluminum alloy profile with a cross-sectional width exceeding 100 mm and a wall thickness greater than 3 mm. For example, a typical curtain wall profile specification is: width 385 mm, height 200 mm, wall thickness 3 - 12 mm (it can be thicker).

[0042] Embodiment 1:

[0043] The sawing and milling processing unit applicable to the curtain wall profile given in this embodiment is arranged in the profile processing center as shown in Figure 1 As shown, it includes a base 1. On the upper surface of the base 1, a gantry A 2 and a gantry B 3 are arranged side by side. Outside the gantry A 2, there is a drilling and milling unit 4. The space between the gantry A 2 and the gantry B 3 accommodates the sawing and milling unit 5.

[0044] The profile is grasped by a mechanical gripper and fed into the Figure 1 As shown in the processing center, and the drilling and milling processing is performed by the drilling and milling processing unit; after the drilling and milling processing is completed, it is fed into the subsequent sawing and milling unit 5 for sawing and milling processing according to the processing requirements. After the sawing and milling is completed, the front section of the profile is taken out and unloaded by the gripper at the discharging end.

[0045] A sawing and milling processing unit applicable to curtain wall profiles, the overall structure is as Figure 2 shown, including at least two groups of sawing and milling fixtures: a first sawing and milling fixture 51 and a second sawing and milling fixture 52, and corresponding sawing and milling processing mechanisms.

[0046] The number and position of the sawing and milling processing mechanisms depend on the specific processing requirements of the curtain wall profiles, and are not limited in this embodiment. For example, there can be two groups, including a first sawing and milling processing mechanism 53 and a second sawing and milling processing mechanism 54. The structures of the two groups of sawing and milling processing mechanisms can be the same or different, and this embodiment is not specifically limited either. A gantry can be used as the basis, and a slide rail is arranged on the gantry, cooperating with a ball screw mechanism and a bracket to form three processing directions of X, Y, and Z.

[0047] The two groups of sawing and milling fixtures are arranged side by side in the space between the two gantries and are connected to the base 1. The two groups of sawing and milling fixtures clamp the profiles from both vertical and horizontal directions, and can move a certain distance along the x direction while maintaining the clamping state, ensuring that the distance between the clamping position and the sawing and milling processing position is close enough, so as to obtain a better supporting effect and higher sawing and milling processing quality.

[0048] In this embodiment, the first sawing and milling fixture 51 and the second sawing and milling fixture 52 are the same in technical principle, and the functions and purposes of the two groups of fixtures are the same, both for clamping and fixing the profiles from the vertical and horizontal directions of the profiles, and both have a movement stroke in the x direction. There are slight differences in the quantity and arrangement positions of individual components in the two groups of fixtures. This solution takes the structure of the first sawing and milling fixture 51 as an example.

[0049] As Figure 3 - Figure 4 shown, the first sawing and milling fixture 51 includes a base 511 connected to the base 1. A slide rail 513 is provided on the upper surface of the base 511. The slide rail 513 is slidably connected to the lower surface of the slide plate 514. The slide plate 514 is provided with power in the x direction by a ball screw mechanism 512 arranged on the base 511, driving the remaining components arranged on the slide plate 514 to move along the x direction.

[0050] As a further implementation manner, a ball screw mechanism 512 is provided on the base 511. The motor in the ball screw mechanism 512 is located inside the base 511. The output shaft of the motor is connected to a sprocket. The sprocket is connected to a transmission wheel through a chain. The transmission wheel is connected to one end of the lead screw. The lead screw is movably connected to the slider. The slider is connected to the lower bottom surface of the slide plate 514. Power is provided by the motor to rotate the lead screw, driving the slider together with the slide plate 514 to move along the x direction.

[0051] As a further implementation manner, support rollers 515 and fixed rollers 5115 are arranged side by side on the upper surface of the skateboard 514. A pressing roller 516 is arranged in the space above the support rollers 515, and a pressing block 5110 is arranged in the space above the fixed rollers 5115. A supporting wheel 517 and a horizontal clamping mechanism are arranged between the support rollers 515 and the fixed rollers 5115.

[0052] As a further implementation manner, the horizontal clamping mechanism includes a backing plate 518 arranged on one side of the supporting wheel 517. The backing plate 518 and the clamping plate 519 are arranged oppositely. The clamping plate 519 is arranged on the side opposite to the backing plate 518 in the horizontal plane y direction.

[0053] As a further implementation manner, there are at least two groups of supporting wheels 517. The two groups of supporting wheels 517 are arranged side by side and vertically on one side of the skateboard 514. The contact plane formed by the two groups of supporting wheels 517 is coplanar with the surface of the backing plate 518.

[0054] As a further implementation manner, both ends of the pressing roller 516 are connected to corresponding second pressing cylinders 5114 through brackets. The second pressing cylinders 5114 act in the vertical direction, driving the pressing roller 516 to move towards the direction close to the support rollers 515, and pressing the profile from the vertical direction.

[0055] As a further implementation manner, the pressing block 5110 is connected to a corresponding first pressing cylinder 5113 through a bracket. The first pressing cylinder 5113 acts in the vertical direction, driving the pressing block 5110 to move towards the direction close to the fixed rollers 5115, and pressing the profile from the vertical direction.

[0056] As a further implementation manner, in the horizontal clamping mechanism, the clamping plate 519 is driven by a clamping cylinder acting along the horizontal y direction to move towards the direction close to the backing plate 518, and clamping the profile from the horizontal direction.

[0057] The traditional method usually realizes the clamping and fixing of profiles by means of horizontal clamping or vertical clamping. In this solution, the cross-sectional width of the curtain wall profile is larger. During traditional processing, the clamping force requirements during processing cannot be met by using a single-direction clamping method. Therefore, the profile is clamped from both the horizontal direction and the vertical direction, and the profile is clamped from different directions to ensure the processing quality.

[0058] As a further implementation method, the horizontal clamping mechanism adopts the form of double-cylinder segmented pressing, and presses the profiles with different width ranges respectively, saving the pressing time and improving the efficiency of sawing and milling processing. Specifically: The clamping cylinders include a first clamping cylinder 5111 and a second clamping cylinder 5112 that act in the horizontal y direction. Both groups of clamping cylinders and the clamping plate 519 move along the slide rails arranged in the y direction, and corresponding sliders are provided on the slide rails. Among them, the fixed end of the first clamping cylinder 5111 is connected to slider A, and the moving end pushes the clamping plate 519 to move. The fixed end of the second clamping cylinder 5112 is connected to the end of the slide rail, and the moving end pushes slider B together with slider A where the first clamping cylinder 5111 is located to act together. The movement strokes of the two groups of clamping cylinders can be the same or different.

[0059] Since the width range of curtain wall profiles is much larger than that of conventional door and window profiles, in order to consider stability during processing, it is preferred to set the horizontal clamping stroke to be greater than the vertical clamping (in some processing requirements, it may be the opposite, depending on the specific structural requirements of the profile). When clamping, the action of the cylinder with a large stroke requires a certain amount of time. Since the two cylinders both move in the y direction, they can achieve the form of segmented pressing. When dealing with the clamping requirements of profiles with different width ranges, the two clamping cylinders can act synchronously or successively, reducing the stroke requirements of each clamping cylinder, thereby saving the clamping time and improving the efficiency of sawing and milling processing.

[0060] As a further implementation method, there are at least two groups of support rollers 515, follower rollers 517 and fixed rollers 5115 arranged side by side. The number of pressing rollers 516 and pressing blocks 5110 is not limited. The movement axis of the horizontal clamping mechanism is located between the support rollers and the fixed rollers. With this quantity configuration, a relatively more reliable clamping force can be obtained.

[0061] As a further implementation method, the support rollers 515, pressing rollers 516 and follower rollers 517 can all rotate and contact the surface of the profile in the form of rolling friction to avoid scratching the surface of the profile. While maintaining the clamping force in a rotational manner, it allows the profile to move smoothly, avoiding processing errors caused by resistance (such as dimensional deviation or cut burrs). By rotating to adapt to the surface curvature of the profile, even if the profile has slight warping or tolerances, a uniform clamping force distribution can be maintained, avoiding deformation caused by excessive local stress.

[0062] The surface of the fixed roller 5115 is provided with air holes. By introducing compressed gas into the interior of the fixed roller and blowing it out from the air holes, the adhesion of aluminum chips on the support roller is solved, avoiding scratching the bottom of the profile. Figure 5 - Figure 6As shown, the cross-section of the fixed roller is semi-circular, the material hardness is lower than that of the profile, and the surface of the semi-circular area is smooth. For example, it can be processed with polypropylene. Structurally, mounting holes are provided at both ends of the semi-circular area of the fixed roller for inserting fasteners to connect the fixed roller to the slide plate 514. Air pipe connectors are provided on both end faces of the fixed roller for connecting to a compressed air source. Air holes are opened in the semi-circular area of the fixed roller and are provided in multiple groups, and the multiple groups of air holes are arranged side by side. A strip-shaped groove is provided in the flat area of the fixed roller, the bottom end of the strip-shaped groove is connected to the air holes, and both ends are connected to the air pipe connectors. External compressed gas enters the strip-shaped groove through the air pipe connectors, and the strip-shaped groove forms a gas storage cavity, so that the compressed gas is blown out from each air hole in a relatively uniform state.

[0063] The connection line where the multiple groups of air holes are located is on one side of the axis of the fixed roller. Since there are two sets of fixed rollers arranged side by side for the fixed roller 5115, the range of the angle α formed by the air hole connection lines in the two sets of fixed rollers is 100° - 120°. In this angle range, the air flow blown out from the air holes in the two sets of fixed rollers blows to the lower surface of the profile to form an "air cushion", and the "air cushion" blows away the aluminum chips on the surface of the fixed roller and the bottom of the profile, reducing the scratches caused by the aluminum chips during the sliding friction between the bottom surface of the profile and the fixed roller.

[0064] Since the profile blank is first subjected to drilling and milling, aluminum chips will be generated near the processing position. When it is sent into the sawing and milling unit, it first passes through the first vertical pressing mechanism formed by the support roller 515 and the pressing roller 516. While the first vertical pressing mechanism remains in a pressed state, the slide plate 514 moves in the x direction to adjust the distance between the fixture and the sawing and milling processing position. During this period, since both the support roller 515 and the pressing roller 516 can rotate, the relative friction generated with the profile is rolling friction rather than sliding friction. Therefore, even if there are aluminum chips on the surface of the profile, it is not easy to scratch the surface of the profile.

[0065] Since the horizontal clamping mechanism has no vertical movement, and the profile does not contact this mechanism on the top and bottom surfaces, and at the same time the horizontal clamping mechanism will only act when the profile is in a stationary state, there is no relative movement in the x direction between the horizontal clamping mechanism and the profile. Relying only on the lateral clamping action is not enough to cause the aluminum chips to scratch the surface of the profile.

[0066] The second vertical pressing mechanism formed by the fixed roller 5115 and the pressing block 5110 is different from the first vertical pressing mechanism. Before the second vertical pressing mechanism operates, the profile moves in the x direction to reach the set sawing and milling processing position. During the movement of the profile, there is a sliding friction with the semi-circular area of the fixed roller 5115. Since the curtain wall profile has a self-weight much greater than that of conventional profiles, the bottom surface of the curtain wall profile will be affected by its self-weight, thus generating a relatively higher pressure on the fixed roller 5115. Under the dual action of the pressure and the relative movement (sliding friction) in the x direction on the bottom surface of the profile, it is easy to scratch the bottom surface of the profile. Even if there is a protective film on the surface of the profile, affected by the pressure and sliding friction, the aluminum chips may penetrate the protective film or be embedded between the film and the profile surface, thus aggravating the scratch.

[0067] Therefore, in this solution, air holes are opened on the fixed roller 5115 with sliding friction. By designing the orientation angle of the air holes, after the compressed gas is ejected from the air holes, an "air cushion" is formed on the bottom surface of the profile. On the one hand, the existence of the "air cushion" can reduce the pressure borne by the fixed roller to a certain extent, and thus reduce the friction between the bottom surface of the profile and the surface of the fixed roller. On the other hand, before the profile passes through the fixed roller, the "air cushion" can blow away the aluminum chips on the bottom surface of the profile, reducing the probability of the aluminum chips adhering to the bottom surface of the profile, thereby solving the scratch problem.

[0068] Meanwhile, the scratch on the bottom of the profile occurs during the feeding in the x direction. At this time, the pressing block 5110 does not operate and will not contact the profile, so there is no problem of scratching. When the feeding is completed, the pressing block 5110 will operate to press the profile. The pressing action does not generate sliding friction, and the part of the pressing block 5110 in contact with the profile is usually made of a material with a hardness lower than that of the profile (such as polypropylene). Even if there are aluminum chips, only fine pits will be pressed on the surface of the pressing block 5110, and the profile itself will not be damaged.

[0069] In this embodiment, through relevant experiments and considering the actual processing difficulty, the diameter of the air hole is set to 1.5 mm, the air hole spacing is designed at an interval of 10 mm, the flow rate range of the compressed gas is not restricted, and the pressure range is: 0.5 - 0.8 MPa.

[0070] The profile is fed into the sawing and milling unit 5 in the X direction for sawing and milling processing. During the feeding period, the air holes on the fixed roller maintain the jetting state. Under the state where the first vertical pressing mechanism maintains the pressing, the profile moves in the x direction to the sawing and milling processing position. Through the action of the slide plate, the sawing and milling fixture is made as close as possible to the sawing and milling processing position. The horizontal clamping mechanism and the second vertical pressing mechanism operate to fix the profile, and the sawing and milling processing starts; after the sawing and milling is completed, the front section of the profile is taken out and unloaded by the gripper at the discharge end.

[0071] Embodiment 2:

[0072] The profile processing center is asFigure 1 As shown in the figure, it includes a base 1. On the upper surface of the base 1, there are a gantry A 2 and a gantry B 3 arranged in parallel. Outside the gantry A 2, there is a drilling and milling unit 4. The space between the gantry A 2 and the gantry B 3 accommodates a sawing and milling unit 5, and the sawing and milling unit 5 among them is the sawing and milling processing unit applicable to curtain wall profiles in the first embodiment.

[0073] The profile is gripped by a mechanical gripper and fed in the X direction Figure 1 into the shown machining center, and the drilling and milling processing is performed by using the drilling and milling processing unit; after the drilling and milling processing is completed, the profile is fed into the sawing and milling unit 5 in the X direction for sawing and milling processing. During the feeding period, the air holes on the fixed rollers maintain the air jet state. Under the state where the first vertical pressing mechanism maintains the pressing state, the profile runs in the x direction to the sawing and milling processing position. Through the action of the sliding plate, the sawing and milling fixture is made as close as possible to the sawing and milling processing position. The horizontal clamping mechanism and the second vertical pressing mechanism act to fix the profile, and the sawing and milling processing starts; after the sawing and milling is completed, the front section of the profile is taken out and unloaded by the gripper at the discharging end.

[0074] Embodiment 3:

[0075] A working method of a sawing and milling processing unit applicable to curtain wall profiles includes the following steps:

[0076] The profile is fed into the sawing and milling unit 5 in the X direction for sawing and milling processing. During the feeding period, the first vertical pressing mechanism maintains the pressing state, and the air holes on the fixed rollers maintain the air jet state. After the profile runs in the x direction to the sawing and milling processing position, the profile stops running;

[0077] The sliding plate acts to make the corresponding sawing and milling fixture close to the sawing and milling processing position to a set spacing, and the horizontal clamping mechanism and the second vertical pressing mechanism act to fix the profile, and the sawing and milling processing starts;

[0078] After the sawing and milling is completed, the front section of the profile is taken out and unloaded by the gripper at the discharging end.

[0079] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A sawing and milling processing unit applicable to curtain wall profiles, characterized in that, It includes a sawing and milling mechanism and at least two groups of sawing and milling fixtures arranged side by side. The milling mechanism is used to perform sawing or milling operations. The sawing and milling fixtures are used to clamp and fix the profiles vertically and horizontally, and include a first vertical pressing mechanism, a horizontal clamping mechanism, and a second vertical pressing mechanism arranged side by side on a slide plate. In the first vertical pressing mechanism, the pressing roller moves vertically towards the supporting roller driven by a cylinder to achieve vertical pressing of the profile to be processed. In the horizontal clamping mechanism, the backing plate moves horizontally towards the supporting wheel driven by a cylinder to achieve horizontal clamping of the profile to be processed. In the second vertical pressing mechanism, the pressing block moves vertically towards the fixed roller driven by a cylinder to achieve vertical pressing of the profile to be processed. The cross-section of the fixed roller is semi-circular, and multiple groups of air holes are arranged side by side in the semi-circular area. The connection line of multiple groups of air holes is located on one side of the axis of the fixed roller. The angle α formed by the connection lines of the air holes in adjacent two groups of fixed rollers in the cross-section direction of the fixed roller ranges from 100° to 120°.

2. The sawing and milling processing unit applicable to curtain wall profiles according to claim 1, characterized in that, The sawing and milling fixture includes a base connected to a base. A slide rail is provided on the top of the base, and the slide rail is slidably connected to the lower surface of the slide plate.

3. The sawing and milling processing unit applicable to curtain wall profiles according to claim 1, characterized in that The slide plate drives the first vertical pressing mechanism, the horizontal clamping mechanism, and the second vertical pressing mechanism on the slide plate to move along the profile feeding direction through a ball screw mechanism, and the ball screw mechanism is arranged on the base.

4. The sawing and milling processing unit applicable to curtain wall profiles according to claim 1, characterized in that, The first vertical pressing mechanism includes a supporting roller provided on the upper surface of the slide plate. A pressing roller is provided in the space above the supporting roller. Both the supporting roller and the pressing roller can rotate. The two ends of the pressing roller are connected to corresponding pressing cylinders through brackets. The pressing cylinders act vertically to drive the pressing roller to move towards the direction close to the supporting roller to press the profile vertically.

5. The sawing and milling processing unit applicable to curtain wall profiles according to claim 1, characterized in that, The horizontal clamping mechanism includes a backing plate arranged on one side of the supporting wheel. The area where the supporting wheel contacts the side surface of the profile is coplanar with the backing plate. The backing plate and the clamping plate are arranged opposite to each other. The clamping plate is driven by a clamping cylinder acting horizontally to move towards the direction close to the backing plate to clamp the profile horizontally.

6. The sawing and milling processing unit applicable to curtain wall profiles according to claim 5, characterized in that, The clamping cylinder includes a first clamping cylinder and a second clamping cylinder acting horizontally. The two groups of clamping cylinders and the clamping plate all move along a slide rail arranged horizontally, and corresponding sliders are provided on the slide rail.

7. The sawing and milling processing unit applicable to curtain wall profiles according to claim 6, characterized in that The fixed end of the first clamping cylinder is connected to slider A, and the acting end pushes the clamping plate to move. The fixed end of the second clamping cylinder is connected to the end of the slide rail, and the acting end pushes slider B together with slider A where the first clamping cylinder is located to act together. The movement strokes of the two groups of clamping cylinders are different.

8. The sawing and milling processing unit applicable to curtain wall profiles according to claim 1, characterized in that, Air pipe joints are provided on the two end faces of the fixed roller for connecting to a compressed air source; a strip-shaped groove is provided in the planar area of the fixed roller. The bottom of the strip-shaped groove is connected to the air holes, and both ends are connected to the air pipe joints.

9. Profile processing center, characterized in that, It includes a base. A gantry A and a gantry B are arranged side by side on the upper surface of the base. A drilling and milling unit is provided outside the gantry A. The space between the gantry A and the gantry B accommodates a sawing and milling processing unit for curtain wall profiles as described in any one of claims 1-8.

10. The working method of the sawing and milling processing unit applicable to curtain wall profiles according to any one of claims 1-8, characterized in that, It includes the following steps: The profile is fed into the sawing and milling unit 5 in the X direction for sawing and milling. During the feeding process, the first vertical pressing mechanism maintains the pressing state, and the air holes on the fixed rollers maintain the air jet state. After the profile runs in the x direction to the sawing and milling position, the profile stops running; The slide plate moves to make the corresponding sawing and milling fixture approach the sawing and milling position to a set distance. The horizontal clamping mechanism and the second vertical pressing mechanism act to fix the profile, and the sawing and milling process begins; After the sawing and milling is completed, the front section of the profile is taken out and unloaded by the gripper at the discharging end.

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