Saw and milling processing units, machining centers and working methods applicable to curtain wall profiles

Abstract

This invention relates to a sawing and milling processing unit, processing center, and working method suitable for curtain wall profiles. The milling mechanism is used to perform sawing or milling operations. A sawing and milling fixture is used to clamp and fix the profile in both vertical and horizontal directions. The clamping block of the sawing and milling fixture, driven by a cylinder, moves vertically towards a fixed roller to achieve vertical clamping of the profile to be processed. The fixed roller has a semi-circular cross-section, with multiple sets of parallel air holes arranged in the semi-circular area. The line connecting these sets of air holes is located on one side of the fixed roller's axis. The angle α formed by the lines connecting air holes in adjacent sets of fixed rollers in the direction of the fixed roller's cross-section ranges from 100° to 120°. During profile feeding and processing, gas is ejected through the fixed roller, forming an "air cushion" on the bottom surface of the profile. This reduces the pressure of the profile's own weight on the surface of the fixed roller and simultaneously blows away aluminum chips from the bottom surface of the profile, solving the problem of scratches caused by sliding friction between the profile and the fixed roller.

Description

Technical Field

[0001] This invention relates to the field of profile processing and manufacturing technology, specifically to a sawing and milling processing unit, processing center, and working method applicable to curtain wall profiles. Background Technology

[0002] The statements in this section are merely background information related to the present invention and do not necessarily constitute prior art.

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

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

[0005] During the processing of curtain wall profiles, the profiles need to be clamped and fixed before various processing (such as drilling, sawing, milling, etc.). During processing, the debris generated will enter between the clamp and the surface of the profile. With the relative movement of the profile and the clamp, it will scratch the surface of the profile.

[0006] Existing technologies have designed various measures for the protection of profile surfaces during processing, such as using low-hardness materials in the fixture to contact the profile, or designing the fixture structure to use rolling friction rather than sliding friction relative to the profile. These methods attempt to reduce the degree of scratches caused by debris on the profile surface to ensure the quality of profile processing, but the effect is limited. When processing curtain wall profiles, because the volume and wall thickness of curtain wall profiles are much larger than those of common profiles, the contact area and contact pressure between the curtain wall profiles and various fixtures are very high, and existing technologies are difficult to achieve ideal results.

[0007] In addition, some existing technologies cover the surface of the blank material with a protective film (PE protective film or PET film) before the profile is processed. Although such protective films can reduce surface scratches during processing, handling or storage to a certain extent, curtain wall profiles are larger in size and wall thickness and are subjected to more intense milling, stamping and other processes by various processing mechanisms during processing. The aluminum chips generated may penetrate or embed between the film and the profile, which will aggravate the scratches. Therefore, for curtain wall profiles, the film covering method is also difficult to achieve a more ideal effect. Summary of the Invention

[0008] To address the technical problems mentioned above, this invention provides a milling and sawing unit, machining center, and working method suitable for curtain wall profiles. During profile feeding and processing, the fixed roller in the fixture forms an "air cushion" on the bottom surface of the profile by spraying gas, reducing the pressure of the profile's own weight on the surface of the fixed roller, and blowing away aluminum chips from the bottom surface of the profile, thus solving the problem of scratches caused by sliding friction between the profile and the fixed roller.

[0009] To achieve the above objectives, the present invention adopts the following technical solution:

[0010] The first aspect of the present invention provides a sawing and milling processing unit suitable for curtain wall profiles, including a sawing and milling processing mechanism and at least two sets of sawing and milling fixtures arranged in parallel. The milling processing mechanism is used to perform sawing or milling processing, and the sawing and milling fixtures are used to clamp and fix the profiles from the vertical and horizontal directions, including a first vertical clamping mechanism, a horizontal clamping mechanism and a second vertical clamping mechanism arranged in parallel on a sliding plate.

[0011] In the first vertical pressing mechanism, the pressing roller moves vertically toward the support roller under the drive of the cylinder to achieve vertical pressing of the profile to be processed;

[0012] In the horizontal clamping mechanism, the support plate moves horizontally toward the support wheel under the drive of the cylinder to achieve horizontal clamping of the profile to be processed;

[0013] In the second vertical clamping mechanism, the clamping block moves vertically toward the fixed roller under the drive of the cylinder to achieve vertical clamping of the profile to be processed; the cross section of the fixed roller is semi-circular, and the semi-circular area is provided with multiple sets of parallel air holes. The line connecting the multiple sets of air holes is located on one side of the axis of the fixed roller, and the angle α formed by the line connecting the air holes in two adjacent sets of fixed rollers in the direction of the fixed roller cross section is in the range of 100°-120°.

[0014] Furthermore, the sawing and milling fixture includes a base connected to the base, with a slide rail on the top of the base, the slide rail being slidably connected to the lower surface of the slide plate.

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

[0016] Furthermore, the first vertical pressing mechanism includes a support roller disposed on the upper surface of the slide plate, and a pressing roller disposed above the support roller. Both the support roller and the pressing roller are rotatable. The two ends of the pressing roller are connected to corresponding pressing cylinders through brackets. The pressing cylinders move in the vertical direction, driving the pressing roller to move toward the support roller, thereby pressing the profile in the vertical direction.

[0017] Furthermore, 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 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 in the horizontal direction and moves toward the backing plate to clamp the profile in the horizontal direction.

[0018] Furthermore, the clamping cylinder includes a first clamping cylinder and a second clamping cylinder that move in the horizontal direction. Both sets of clamping cylinders and the clamping plate move along a slide rail arranged in the horizontal direction. The slide rail is provided with corresponding sliders. The fixed end of the first clamping cylinder is connected to the slider A, and the actuating 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 actuating end pushes the slider B together with the slider A where the first clamping cylinder is located to move together. The two sets of clamping cylinders have different strokes.

[0019] Furthermore, the fixed roller has air pipe connectors on both end faces for connecting to a compressed air source; the fixed roller has a strip groove in its planar area, the bottom of the strip groove is connected to the air hole, and both ends are connected to the air pipe connector.

[0020] A second aspect of the invention provides a profile processing center, including a base, with a gantry A and a gantry B arranged side by side on the upper surface of the base, a drilling and milling unit provided on the outer side of the gantry A, and a sawing and milling unit being accommodated in the space between the gantry A and the gantry B.

[0021] A third aspect of the present invention provides a method of operating a sawing and milling unit suitable for curtain wall profiles, comprising the following steps:

[0022] The profile is fed into the sawing and milling unit 5 along the X direction for sawing and milling. During the feeding process, the first vertical clamping mechanism maintains the clamping state, and the air holes on the fixed roller maintain the air jet state. After the profile moves to the sawing and milling position along the X direction, the profile stops moving.

[0023] The sliding motion brings the corresponding sawing and milling fixture closer to the sawing and milling position to the set distance. The horizontal clamping mechanism and the second vertical clamping mechanism then fix the profile and begin the sawing and milling process.

[0024] After the milling process is completed, the first section of the profile is removed and unloaded by the gripper at the discharge end.

[0025] Compared with existing technologies, one or more of the above technical solutions have the following beneficial effects:

[0026] 1. During profile feeding, the profile passes sequentially through a first vertical clamping mechanism, a horizontal clamping mechanism, and a second vertical clamping mechanism. In the first vertical clamping mechanism, the support rollers and clamping rollers generate rolling friction with the profile surface rather than sliding friction, reducing the likelihood of scratches even if aluminum shavings are present. In the second vertical clamping mechanism, airflow from the vents in the two sets of fixed rollers blows onto the lower surface of the profile, forming an "air cushion." This "air cushion" reduces the pressure on the fixed rollers, thus reducing friction between the bottom surface of the profile and the fixed roller surface. Simultaneously, before passing the fixed rollers, the "air cushion" blows away aluminum shavings from the bottom surface of the profile, reducing the probability of shavings adhering to the bottom surface and thus solving the scratch problem.

[0027] 2. External compressed gas enters the strip groove of the fixed roller through the air pipe joint. The strip groove forms an air storage chamber, so that the compressed gas is blown out from each air hole in a relatively uniform state, ensuring that the formed "air cushion" is reliable.

[0028] 3. The sawing and milling fixture clamps the profile from both vertical and horizontal directions, and can move a certain distance along the feeding direction of the profile while maintaining clamping, ensuring that the distance between the clamping position and the sawing and milling position is close enough to obtain better support and higher sawing and milling quality. Attached Figure Description

[0029] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an improper limitation of the invention.

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

[0031] Figure 2 This is a schematic diagram of the sawing and milling processing unit provided in one or more embodiments of the present invention;

[0032] Figure 3 This is a structural schematic diagram of the sawing and milling fixture provided in one or more embodiments of the present invention from a first-view perspective;

[0033] Figure 4 This is a schematic diagram of the sawing and milling fixture provided in one or more embodiments of the present invention from a second perspective.

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

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

[0036] Figures 1-2 In the middle: 1 base, 2 gantry A, 3 gantry B, 4 drilling and milling unit, 41 follower fixture, 5 sawing and milling unit, 51 first sawing and milling fixture, 52 second sawing and milling fixture, 53 first sawing and milling mechanism, 54 second sawing and milling mechanism;

[0037] Figures 3-4 In the middle: 511 base, 512 ball screw mechanism, 513 slide rail, 514 slide plate, 515 support roller, 516 pressure roller, 517 guide wheel, 518 backing plate, 519 clamping plate, 5110 pressure block, 5111 first clamping cylinder, 5112 second clamping cylinder, 5113 first pressure cylinder, 5114 second pressure cylinder, 5115 fixed roller. Detailed Implementation

[0038] The present invention will be further described below with reference to the accompanying drawings and embodiments.

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

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

[0041] Unless otherwise specified, the term "profile" in the following examples refers to "curtain wall profile", that is, aluminum alloy profile with a cross-sectional width of more than 100mm and a wall thickness of more than 3mm. For example, a typical curtain wall profile specification is: width 385mm, height 200mm, and wall thickness 3-12mm (can be thicker).

[0042] Example 1:

[0043] The milling and sawing unit for curtain wall profiles provided in this embodiment is arranged as follows: Figure 1 The profile processing center shown includes a base 1, on the upper surface of which are arranged parallel gantry frames A2 and B3. A drilling and milling unit 4 is provided on the outside of gantry frame A2, and a sawing and milling unit 5 is provided in the space between gantry frame A2 and gantry frame B3.

[0044] The profile is gripped by a mechanical gripper and fed in the X direction. Figure 1 The machining center shown performs drilling and milling in the drilling and milling unit; after drilling and milling is completed, it is sent to the subsequent sawing and milling unit 5 for sawing and milling according to the processing requirements. After sawing and milling is completed, the first section of the profile is taken out and unloaded by the gripper at the discharge end.

[0045] A sawing and milling unit suitable for curtain wall profiles, with an overall structure as follows: Figure 2 As shown, it includes at least two sets of sawing and milling fixtures: a first sawing and milling fixture 51 and a second sawing and milling fixture 52, as well as a corresponding sawing and milling processing mechanism.

[0046] The number and location of the sawing and milling mechanisms depend on the specific processing requirements of the curtain wall profiles, and this embodiment does not impose any restrictions. For example, there can be two sets, including a first sawing and milling mechanism 53 and a second sawing and milling mechanism 54. The structures of the two sets of sawing and milling mechanisms can be the same or different, and this embodiment also does not impose any specific restrictions. A gantry frame can be used as a base, and slide rails can be set on the gantry frame, which, together with the ball screw mechanism and the support, form three processing directions: X, Y, and Z.

[0047] Two sets of sawing and milling fixtures are arranged side by side in the space between two sets of gantry frames and connected to the base 1. The two sets of sawing and milling fixtures clamp the profile from both vertical and horizontal directions, and can move a certain distance in the x-direction while maintaining clamping, ensuring that the distance between the clamping position and the sawing and milling position is close enough to obtain better support and higher sawing and milling quality.

[0048] In this embodiment, the first sawing and milling fixture 51 and the second sawing and milling fixture 52 are identical in technical principle. Both fixtures serve the same purpose: to clamp and fix the profile in both vertical and horizontal directions, and both have a travel distance in the x-direction. There are slight differences in the number and arrangement of individual components in the two fixtures; this solution uses the structure of the first sawing and milling fixture 51 as an example.

[0049] like Figures 3-4 As shown, the first sawing and milling fixture 51 includes a base 511 connected to the base 1. The upper surface of the base 511 is provided with a slide rail 513. The slide rail 513 is slidably connected to the lower surface of the slide plate 514. The slide plate 514 provides power in the x direction through a ball screw mechanism 512 provided on the base 511, which drives the other components provided on the slide plate 514 to move in the x direction.

[0050] As a further embodiment, 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 motor output shaft is connected to a sprocket, and the sprocket is connected to a transmission wheel via a chain. The transmission wheel is connected to one end of the screw, and the screw is movably connected to the slider, which is connected to the bottom surface of the slide plate 514. Power is provided by the motor to rotate the screw, driving the slider and the slide plate 514 to move along the x-direction.

[0051] As a further embodiment, the upper surface of the slide plate 514 is provided with a support roller 515 and a fixed roller 5115 arranged in parallel. A pressure roller 516 is provided in the space above the support roller 515, and a pressure block 5110 is provided in the space above the fixed roller 5115. A guide roller 517 and a horizontal clamping mechanism are provided between the support roller 515 and the fixed roller 5115.

[0052] As a further embodiment, the horizontal clamping mechanism includes a backing plate 518 arranged on one side of the backing wheel 517, the backing plate 518 and the clamping plate 519 arranged opposite each other, the clamping plate 519 being arranged on the side opposite to the backing plate 518 in the horizontal y direction.

[0053] As a further embodiment, the rollers 517 have at least two sets, the two sets of rollers 517 are arranged side by side and vertically on one side of the slide plate 514, and the contact plane formed by the two sets of rollers 517 is coplanar with the surface of the back plate 518.

[0054] As a further embodiment, the two ends of the pressing roller 516 are connected to the corresponding second pressing cylinder 5114 through the bracket. The second pressing cylinder 5114 moves in the vertical direction, driving the pressing roller 516 to move toward the support roller 515, and pressing the profile in the vertical direction.

[0055] As a further embodiment, the clamping block 5110 is connected to the corresponding first clamping cylinder 5113 via a bracket. The first clamping cylinder 5113 moves in the vertical direction, causing the clamping block 5110 to move toward the fixed roller 5115, thereby clamping the profile in the vertical direction.

[0056] As a further embodiment, in the horizontal clamping mechanism, the clamping plate 519 is driven by the clamping cylinder that moves along the horizontal y direction, moving toward the direction close to the backing plate 518, and clamping the profile in the horizontal direction.

[0057] Traditional methods typically use horizontal or vertical clamping to hold and fix the profiles. However, in this solution, the curtain wall profiles have a larger cross-sectional width, and the traditional single-direction clamping method cannot meet the clamping force requirements during processing. Therefore, the profiles are clamped simultaneously from both horizontal and vertical directions to ensure processing quality.

[0058] As a further implementation, the horizontal clamping mechanism adopts a dual-cylinder segmented clamping method, clamping profiles of different widths separately, saving clamping time and improving the efficiency of sawing and milling. Specifically: the clamping cylinders include a first clamping cylinder 5111 and a second clamping cylinder 5112 that move along the horizontal y-direction. Both sets of clamping cylinders and the clamping plate 519 move along a slide rail arranged along the y-direction, and the slide rail is equipped with corresponding sliders. The fixed end of the first clamping cylinder 5111 is connected to slider A, and its actuating 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 its actuating end pushes slider B together with slider A, where the first clamping cylinder 5111 is located, to move together. The strokes of the two sets of clamping cylinders can be the same or different.

[0059] Because the width range of curtain wall profiles is much larger than that of conventional door and window profiles, during processing, for the sake of stability, the horizontal clamping stroke is prioritized to be greater than the vertical clamping stroke (some processing requirements may be the opposite, depending on the specific structural requirements of the profile). When clamping, the large-stroke cylinder requires a certain amount of time to operate. Since both cylinders move along the y-direction, they can achieve segmented clamping. When dealing with the clamping requirements of profiles with different width ranges, the two clamping cylinders can operate synchronously or sequentially, reducing the stroke requirement of each clamping cylinder, thereby saving clamping time and improving the efficiency of sawing and milling.

[0060] As a further embodiment, the support roller 515, the guide roller 517 and the fixed roller 5115 each have at least two sets arranged in parallel, and the number of the clamping roller 516 and the clamping block 5110 is not limited. The motion axis of the horizontal clamping mechanism is located between the support roller and the fixed roller. With this configuration, a relatively more reliable clamping force can be obtained.

[0061] As a further embodiment, the support roller 515, the pressure roller 516, and the guide roller 517 are all rotatable, contacting the profile surface through rolling friction to avoid scratching the profile surface. The rotation method maintains clamping force while allowing smooth profile movement, avoiding processing errors (such as dimensional deviations or burrs) caused by resistance. By adapting the rotation to the profile surface curvature, even with slight warping or tolerances, a uniform clamping force distribution is maintained, preventing excessive local stress and deformation.

[0062] The fixed roller 5115 has air holes on its surface. By introducing compressed gas into the fixed roller and blowing it out through the air holes, the adhesion of aluminum shavings to the support roller is prevented, thus avoiding scratches on the bottom of the profile. Figures 5-6As shown, the fixed roller has a semi-circular cross-section, and the material hardness is lower than that of the profile. The surface of the semi-circular area is smooth, for example, it can be made of polypropylene. Structurally, the fixed roller has mounting holes at both ends of the semi-circular area for fasteners to be inserted 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. Multiple sets of air holes are formed in the semi-circular area of ​​the fixed roller, arranged side-by-side. The planar area of ​​the fixed roller has a strip-shaped groove, the bottom of which connects to the air hole, and both ends connect to the air pipe connectors. External compressed gas enters the strip-shaped groove through the air pipe connectors, forming an air storage chamber, allowing the compressed gas to be blown out from each air hole in a relatively uniform manner.

[0063] The line connecting the multiple sets of air holes is located on one side of the axis of the fixed roller. Since the fixed roller 5115 has two sets arranged in parallel, the angle α formed by the line connecting the air holes in the two sets of fixed rollers is in the range of 100°-120°. Within this angle range, the airflow blown out by the air holes in the two sets of fixed rollers blows onto the lower surface of the profile to form an "air cushion". 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 aluminum chips when the bottom surface of the profile slides against the fixed roller.

[0064] Since the profile blank has undergone drilling and milling, aluminum chips will be generated near the processing position. When it is fed into the sawing and milling unit, it first passes through the first vertical clamping mechanism formed by the support roller 515 and the clamping roller 516. While the first vertical clamping mechanism is in a clamping 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 clamping roller 516 can rotate, the friction generated relative to the profile is rolling friction rather than sliding friction. Therefore, even if there are aluminum chips on the profile surface, it is not easy to scratch the profile surface.

[0065] Since the horizontal clamping mechanism does not move in the vertical direction, and the profile does not come into contact with the mechanism on the top and bottom surfaces, and the horizontal clamping mechanism only operates when the profile is stationary, there is no relative movement between the horizontal clamping mechanism and the profile in the x-direction. The lateral clamping action alone is insufficient to cause aluminum chips to scratch the profile surface.

[0066] The second vertical clamping mechanism formed by the fixed roller 5115 and the clamping block 5110 is different from the first vertical clamping mechanism. Before the second vertical clamping mechanism is activated, the profile will move along the x-direction to reach the set milling position. During the movement of the profile, sliding friction occurs with the semi-circular area of ​​the fixed roller 5115. Since the curtain wall profile is much heavier than conventional profiles, the bottom surface of the curtain wall profile will be affected by its own weight, thus generating relatively higher pressure on the fixed roller 5115. Under the dual action of pressure and relative movement (sliding friction) in the x-direction, aluminum chips on the bottom surface of the profile are prone to scratching the bottom surface of the profile. Even if there is a protective film on the surface of the profile, under the influence of pressure and sliding friction, aluminum chips may penetrate the protective film or embed between the film and the surface of the profile, thus aggravating the scratches.

[0067] Therefore, this solution involves opening air holes on the fixed roller 5115 of sliding friction. By designing the orientation angle of the air holes, compressed gas is ejected from the air holes, forming an "air cushion" on the bottom surface of the profile. On the one hand, the presence of the "air cushion" can reduce the pressure on the fixed roller to a certain extent, thereby reducing 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 aluminum chips adhering to the bottom surface of the profile, thus solving the scratch problem.

[0068] Meanwhile, scratches on the bottom of the profile occur during feeding in the x-direction. During this time, the clamping block 5110 is not in motion and therefore does not contact the profile, thus avoiding scratches. Only when feeding is complete does the clamping block 5110 activate to clamp the profile. This clamping action does not generate sliding friction, and the part of the clamping block 5110 that contacts the profile is typically made of a material with a lower hardness than the profile (e.g., polypropylene). Even if aluminum shavings are present, they will only create tiny pits on the surface of the clamping block 5110 without damaging the profile itself.

[0069] In this embodiment, based on relevant experiments and considering the actual processing difficulty, the diameter of the pores is set to 1.5 mm, the pore spacing is designed to be 10 mm, the flow rate of the compressed gas is not limited, and the pressure range is 0.5-0.8 MPa.

[0070] The profile is fed into the sawing and milling unit 5 along the X direction for sawing and milling. During feeding, the air holes on the fixed roller maintain the air jet state. Under the condition that the first vertical clamping mechanism maintains the clamping, the profile moves along the X direction to the sawing and milling position. The action of the slide plate makes the sawing and milling fixture as close as possible to the sawing and milling position. The horizontal clamping mechanism and the second vertical clamping mechanism fix the profile and start the sawing and milling. After the sawing and milling is completed, the first section of the profile is taken out by the gripper at the discharge end and unloaded.

[0071] Example 2:

[0072] Profile machining center, such as Figure 1 As shown, it includes a base 1, and a gantry frame A2 and a gantry frame B3 arranged side by side on the upper surface of the base 1. A drilling and milling unit 4 is provided on the outer side of the gantry frame A2. The space between the gantry frame A2 and the gantry frame B3 accommodates a sawing and milling unit 5, wherein the sawing and milling unit 5 is the sawing and milling processing unit suitable for curtain wall profiles in Embodiment 1.

[0073] The profile is gripped by a mechanical gripper and fed in the X direction. Figure 1 The machining center shown uses a drilling and milling unit to perform drilling and milling. After drilling and milling, the profile is fed into the sawing and milling unit 5 along the X direction for sawing and milling. During feeding, the air holes on the fixed roller maintain an air-purifying state. Under the condition of the first vertical clamping mechanism maintaining clamping, the profile moves along the X direction to the sawing and milling position. The action of the slide plate makes the sawing and milling fixture as close as possible to the sawing and milling position. The horizontal clamping mechanism and the second vertical clamping mechanism act to fix the profile and start the sawing and milling. After sawing and milling, the first section of the profile is taken out by the gripper at the discharge end and unloaded.

[0074] Example 3:

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

[0076] The profile is fed into the sawing and milling unit 5 along the X direction for sawing and milling. During the feeding process, the first vertical clamping mechanism maintains the clamping state, and the air holes on the fixed roller maintain the air jet state. After the profile moves to the sawing and milling position along the X direction, the profile stops moving.

[0077] The sliding motion brings the corresponding sawing and milling fixture closer to the sawing and milling position to the set distance. The horizontal clamping mechanism and the second vertical clamping mechanism then fix the profile and begin the sawing and milling process.

[0078] After the milling process is completed, the first section of the profile is removed and unloaded by the gripper at the discharge end.

[0079] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A sawing and milling unit suitable for curtain wall profiles, characterized in that, It includes a sawing and milling processing mechanism and at least two sets of sawing and milling fixtures arranged in parallel. The milling processing mechanism is used to perform sawing or milling processing, and the sawing and milling fixtures are used to clamp and fix the profile from the vertical and horizontal directions. It includes a first vertical clamping mechanism, a horizontal clamping mechanism and a second vertical clamping mechanism arranged in parallel on a slide plate. In the first vertical pressing mechanism, the pressing roller moves vertically toward the support roller under the drive of the cylinder to achieve vertical pressing of the profile to be processed; In the horizontal clamping mechanism, the support plate moves horizontally toward the support wheel under the drive of the cylinder to achieve horizontal clamping of the profile to be processed; In the second vertical clamping mechanism, the clamping block, driven by a cylinder, moves vertically toward the fixed roller to achieve vertical clamping of the profile to be processed. The fixed roller has a semi-circular cross-section, and the semi-circular area has multiple sets of parallel air holes. The line connecting the multiple sets of air holes is located on one side of the axis of the fixed roller. The angle formed by the line connecting the air holes in two adjacent sets of fixed rollers in the direction of the fixed roller cross-section is... α The range is 100°-120°; 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 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 in the horizontal direction and moves toward the backing plate to clamp the profile in the horizontal direction. The clamping cylinder includes a first clamping cylinder and a second clamping cylinder that move in the horizontal direction. Both sets of clamping cylinders and the clamping plate move along a slide rail arranged in the horizontal direction, and the slide rail is provided with a corresponding slider. The fixed end of the first clamping cylinder is connected to the slider A, and the actuating 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 actuating end pushes the slider B together with the slider A where the first clamping cylinder is located to move together. The two sets of clamping cylinders have different strokes.

2. The milling and sawing unit for curtain wall profiles as described in claim 1, characterized in that, The sawing and milling fixture includes a base connected to a base, and a slide rail on the top of the base, which is slidably connected to the lower surface of the slide plate.

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

4. The milling and sawing unit for curtain wall profiles as described in claim 1, characterized in that, The first vertical pressing mechanism includes a support roller disposed on the upper surface of the slide plate, and a pressing roller disposed above the support roller. Both the support roller and the pressing roller are rotatable. The two ends of the pressing roller are connected to corresponding pressing cylinders through brackets. The pressing cylinders move in the vertical direction, driving the pressing roller to move toward the support roller, thereby pressing the profile in the vertical direction.

5. The sawing and milling unit for curtain wall profiles as described in claim 1, characterized in that, The fixed roller is provided with air pipe connectors on both end faces for connecting to a compressed air source; the fixed roller has a strip groove in its planar area, the bottom of the strip groove is connected to the air hole, and both ends are connected to the air pipe connector.

6. A profile machining center, characterized in that, The device includes a base, on the upper surface of which are arranged side by side gantry A and gantry B. A drilling and milling unit is provided on the outer side of gantry A, and the space between gantry A and gantry B accommodates a sawing and milling processing unit for curtain wall profiles as described in any one of claims 1-5.

7. A working method for a sawing and milling unit applicable to curtain wall profiles according to any one of claims 1-5, characterized in that, Includes the following steps: The profile is fed into the sawing and milling unit along the X direction for sawing and milling. During feeding, the first vertical clamping mechanism maintains the clamping state, and the air holes on the fixed roller maintain the air jet state. After the profile moves along the X direction to the sawing and milling position, the profile stops moving. The sliding motion brings the corresponding sawing and milling fixture closer to the sawing and milling position to the set distance. The horizontal clamping mechanism and the second vertical clamping mechanism then fix the profile and begin the sawing and milling process. After the milling process is completed, the first section of the profile is removed and unloaded by the gripper at the discharge end.

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