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

Abstract

The invention relates to a drilling and milling machining unit suitable for curtain wall profiles, a machining center and a working method. A machining mechanism is arranged on the side face of a to-be-machined profile and moves to each machining position along a straight line to achieve drilling machining or milling machining; the fixing clamp is connected to the base and used for clamping a profile to be machined. In the clamping state, the follow-up clamp moves along with at least one set of machining mechanism in the sectional material feeding direction, and a set distance is kept between the follow-up clamp and the follow-up machining mechanism. The follow-up clamp comprises a base connected to the base, a sliding rail arranged in the sectional material feeding direction is arranged on the upper surface of the base, the sliding rail is movably connected with a sliding plate, a supporting roller is arranged on the upper surface of the sliding plate, a vertical pressing roller is arranged in the space above the supporting roller, a vertical horizontal backer wheel is arranged at one end of the supporting roller, and a horizontal pressing wheel is arranged at the other end of the supporting roller. The follow-up clamp ensures that the drilling and milling position of each section is close enough to the position of a clamping and fixing point, so that the problem of vibration caused by overlarge distance between the clamping points during machining is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of profile processing and manufacturing, and specifically to a drilling and milling processing unit, a machining center and a working method applicable to curtain wall profiles. Background Technique

[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 above 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 and milling), and the processing position will fall within the area between the clamping points formed by two pressing rollers. Due to the relatively large cross-sectional width and thickness of curtain wall profiles, generally a larger processing power is required, which also requires a larger volume of processing spindle. When processing profiles with a cross-sectional width greater than a certain size (for example, a cross-sectional width of 150 mm), in order to avoid interference between the processing spindle and the pressing rollers, the distance between the two pressing rollers is usually increased to ensure that the space between the two pressing rollers is sufficient to accommodate the processing spindle.

[0006] This method avoids the problem of interference between large-sized curtain wall profiles and the processing spindle, but the distance between the profile clamping points is too large, and the profile will vibrate under the influence of the processing spindle, affecting the processing quality. For example, during drilling or milling, the vibration of the profile causes the axis perpendicularity of drilling or milling not to meet the requirements, affecting the subsequent assembly quality; for hinge holes, guide holes with high perpendicularity requirements or sliding grooves with high flatness requirements, it may cause assembly difficulties or jamming of moving parts. Summary of the Invention

[0007] In order to solve the technical problems existing in the above background technique, the present invention provides a drilling and milling processing unit, a machining center and a working method applicable to curtain wall profiles. In view of the structural characteristics of curtain wall profiles with large volume and high wall thickness, a follow-up fixture is arranged in front of the drilling and milling processing area, which can follow the actions of drilling and milling processing, make the profile move along the feeding direction, and ensure that the current processing position of the profile is as close as possible to the pressing and fixing point, so as to solve the problem of unsatisfactory processing quality caused by the too large distance between the profile and the fixing point in the existing method.

[0008] In order to achieve the above object, the present invention adopts the following technical solutions:

[0009] The first aspect of the present invention provides a drilling and milling processing unit applicable to curtain wall profiles, comprising:

[0010] A processing mechanism, having at least one set, arranged on the side of the profile to be processed, running linearly to each processing position, and realizing drilling or milling processing through a feeding movement towards the profile to be processed;

[0011] A fixture, including a fixed fixture and a follower fixture arranged in parallel. The fixed fixture is connected to the base and is used to clamp the profile to be processed. In the clamped state, the follower fixture moves along the profile feeding direction following at least one set of processing mechanisms and maintains a set distance from the followed processing mechanism;

[0012] Among them, the follower fixture includes a base connected to the base. The upper surface of the base is provided with a slide rail arranged along the profile feeding direction. The slide rail is movably connected to a slide plate. The upper surface of the slide plate is provided with a support roller. A vertical pressing roller is arranged in the space above the support roller. A horizontally arranged vertical backing wheel is arranged at one end of the support roller, and a horizontal pressing wheel is arranged at the other end.

[0013] Furthermore, the processing mechanism includes a first horizontal processing mechanism, a first vertical processing mechanism, a second horizontal processing mechanism, and a second vertical processing mechanism. The four sets of processing mechanisms are used to drill and mill the profile from four side directions of the profile cross-section. Each set of processing mechanisms has movements in three directions of X, Y, and Z. Among them, the X direction is the profile feeding direction.

[0014] Furthermore, the first vertical processing mechanism and the second vertical processing mechanism are respectively located on the upper and lower two sides of the profile to be processed, and each has two processing main machines with different powers.

[0015] Furthermore, the fixed fixture includes a horizontally arranged support roller A. A vertical pressing roller A is arranged in the space above the support roller A. A horizontally arranged vertical backing wheel A is arranged at one end of the support roller A, and a horizontal pressing wheel B is arranged at the other end.

[0016] Furthermore, in the follower fixture, the upper surface of the slide plate is provided with a support roller B. A vertical pressing roller B is arranged in the space above the support roller B. A horizontally arranged vertical backing wheel B is arranged at one end of the support roller B, and a horizontal pressing wheel B is arranged at the other end.

[0017] Furthermore, all the support rollers, vertical pressing rollers, horizontal backing wheels, and horizontal pressing wheels can rotate.

[0018] Furthermore, the vertical pressing roller A and the horizontal pressing wheel A are connected to corresponding cylinders, and under the drive of their respective cylinders, they clamp the profile to be processed from the vertical direction and the horizontal direction respectively.

[0019] Further, the vertical pressing roller B and the horizontal pressing wheel B are connected to corresponding cylinders, and under the drive of their respective cylinders, they clamp the profile to be processed from the vertical direction and the horizontal direction respectively.

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

[0021] The third aspect of the present invention provides a working method for the above-mentioned profile processing center, including the following steps:

[0022] The profile is fed into the drilling and milling processing unit along the x direction, clamped and fixed by the fixed fixture and the follower fixture, and the drilling and milling processing is started by using each processing mechanism in the drilling and milling processing unit;

[0023] During the processing, while maintaining the clamping state, the follower fixture moves in the x direction following the target processing mechanism and keeps a set distance;

[0024] After the drilling and milling processing is completed, it is fed into the subsequent sawing and milling unit for sawing and milling processing according to the processing requirements. After the sawing and milling is completed, the frontmost section of the profile is taken out and unloaded by the gripper at the discharge end.

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

[0026] 1. Aiming at the vibration problem caused by too large a distance between the clamping points during the processing of curtain wall profiles, a follower fixture that moves following the processing mechanism is provided. The profile to be processed moves along the X direction, and is clamped and fixed by the follower fixture and the fixed fixture in sequence, and then the drilling and milling processing is performed. During the preparation for drilling and milling the next section after the first section of drilling and milling is completed, the follower fixture maintains the clamping state and moves along the feeding direction of the profile following the corresponding processing mechanism to the area required for the next section of processing. During the movement, a set distance is maintained between the follower fixture and the processing mechanism being followed, ensuring that the position of each section of drilling and milling processing is close enough to the position of the clamping and fixing point formed by the follower fixture, and solving the vibration problem caused by too large a distance between the clamping points during the processing.

[0027] 2. All the support rollers, vertical pressing rollers, horizontal backing wheels, and horizontal pressing wheels can rotate and contact the surface of the profile in the form of rolling friction, avoiding 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 (such as dimensional deviations or cut burrs) caused by resistance. 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.

[0028] 3. The first vertical processing mechanism and the second vertical processing mechanism are respectively located on the upper and lower sides of the profile to be processed, and both have two processing main engines with different powers. Different power processing main engines can be switched according to the requirements of drilling and milling. For example, profiles with thicker walls use processing main engines with greater power to significantly improve efficiency; profiles with thinner walls use processing main engines with smaller power, which can save energy and avoid waste on the premise of meeting efficiency requirements; the upper and lower sides are common processing positions for curtain wall profiles, and having 2 processing main engines for each processing mechanism here also reduces the frequency of tool changing and indirectly improves processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

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

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

[0031] Figure 2 is a schematic diagram of the structure of a drilling and milling processing unit inside a machining center provided by one or more embodiments of the present invention;

[0032] Figure 3 is an exploded structure diagram of a drilling and milling processing unit provided by one or more embodiments of the present invention;

[0033] Figure 4 is a schematic diagram of the structure of each processing mechanism in a drilling and milling processing unit provided by one or more embodiments of the present invention from the first perspective;

[0034] Figure 5 is a schematic diagram of the structure of each processing mechanism in a drilling and milling processing unit provided by one or more embodiments of the present invention from the second perspective;

[0035] Figure 6 is a schematic diagram of the structure of a fixed fixture in a drilling and milling processing unit provided by one or more embodiments of the present invention;

[0036] Figure 7 is a schematic diagram of the structure of a follow-up fixture in a drilling and milling processing unit provided by one or more embodiments of the present invention from the first perspective;

[0037] Figure 8 is a schematic diagram of the structure of a follow-up fixture in a drilling and milling processing unit provided by one or more embodiments of the present invention from the second perspective.

[0038] Figures 1 - 3 In the figure: 1 base, 2 gantry A, 3 gantry B, 4 drilling and milling unit, 41 follow-up fixture, 5 sawing and milling unit;

[0039] Figures 4 - 6 In: 43 mounting plate, 431 first horizontal machining mechanism, 432 first vertical machining mechanism, 433 second horizontal machining mechanism, 434 second vertical machining mechanism, 421 support roller A, 422 vertical pressing roller A, 423 horizontal backing wheel A, 424 horizontal pressing wheel A, 425 first pressing cylinder, 426 first horizontal clamping cylinder, 427 second horizontal clamping cylinder;

[0040] Figures 7 - 8 In: 411 base, 412 support roller B, 413 horizontal backing wheel B, 414 horizontal pressing wheel B, 415 vertical pressing roller B, 416 ball screw mechanism, 417 slide plate, 418 guide rail, 4151 second pressing cylinder, 4141 third horizontal clamping cylinder, 4142 fourth horizontal clamping cylinder. Detailed implementation mode

[0041] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0042] It should be noted that the following detailed description is exemplary and is intended to provide further explanation 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.

[0043] 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.

[0044] 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).

[0045] Embodiment 1:

[0046] The drilling and milling processing unit applicable to curtain wall profiles given in this embodiment is arranged in a profile processing center as shown in Figure 1 The figure, including a base 1, on the upper surface of the base 1, there are arranged side by side a gantry A 2 and a gantry B 3. A drilling and milling unit 4 is arranged outside the gantry A 2, and the space between the gantry A 2 and the gantry B 3 accommodates a sawing and milling unit 5.

[0047] The drilling and milling processing unit applicable to curtain wall profiles, the overall structure is as shown in Figures 2 - 3 The figure, including a drilling and milling processing unit body, a fixed fixture, and a follower fixture 41.

[0048] The profile is grasped by a mechanical gripper and fed along the X direction into the Figure 1 The shown processing center, after passing through asFigures 2 - 3 In the shown drilling and milling unit, it is clamped and fixed by the fixed fixture and the follower fixture 41, and then the drilling and milling process starts. After the drilling and milling process is completed, it is sent to the subsequent sawing and milling unit 5 for sawing and milling according to the processing requirements. After the sawing and milling is finished, the front section of the profile is taken out and unloaded by the gripper at the discharging end.

[0049] As Figure 4 shown, the drilling and milling unit body includes a mounting plate 43 connected to the gantry A2. The mounting plate 43 is provided with a feeding hole for the profile to travel in the x direction, and a fixed fixture is arranged in the feeding hole.

[0050] The mounting plate 43 is provided with a first horizontal processing mechanism 431, a first vertical processing mechanism 432, a second horizontal processing mechanism 433 and a second vertical processing mechanism 434. The four groups of processing mechanisms are used to drill and mill the profile from four side directions of the profile cross-section. On the premise that each processing spindle can rotate, it has movements in three directions of X, Y and Z. The movement in each direction is driven by a motor driving a ball screw mechanism, so as to ensure that the processing accuracy meets the requirements.

[0051] As a further implementation method, the specific structures of the four groups of processing mechanisms are not limited. It can be that a motor drives a tool to rotate to form a processing main machine, and the processing main machine realizes movements in three directions of X, Y and Z through a bracket and a ball screw mechanism, and existing mature structures can be selected.

[0052] Taking the first vertical processing mechanism 432 as an example in this embodiment to explain the specific structure, it includes a processing main machine connected with a tool. The processing main machine is movably connected to the x-direction slide rail. The x-direction slide rail is connected to the first bracket. The first bracket is movably connected to the z-direction slide rail. The z-direction slide rail is connected to the second bracket. The second bracket is movably connected to the y-direction slide rail. The y-direction slide rail is arranged on the mounting plate 43.

[0053] The remaining first horizontal processing mechanism 431, second horizontal processing mechanism 433 and second vertical processing mechanism 434 are the same as the first vertical processing mechanism 432 in principle.

[0054] For example:

[0055] The first horizontal processing mechanism 431 includes a processing main machine connected with a tool. The processing main machine is movably connected to the x-direction slide rail. The x-direction slide rail is movably connected to the z-direction slide rail through a slide plate or a bracket. The z-direction slide rail is movably connected to the y-direction slide rail through a slide plate or a bracket. The y-direction slide rail is arranged on the mounting plate 43.

[0056] The second horizontal processing mechanism 433 includes a processing main machine connected to a tool. The processing main machine is movably connected to an x-direction slide rail. The x-direction slide rail is movably connected to a z-direction slide rail through a slide plate or a bracket. The z-direction slide rail is movably connected to a y-direction slide rail through a slide plate or a bracket. The y-direction slide rail is arranged on the mounting plate 43.

[0057] The second vertical processing mechanism 434 includes a processing main machine connected to a tool. The processing main machine is movably connected to an x-direction slide rail. The x-direction slide rail is movably connected to a z-direction slide rail through a slide plate or a bracket. The z-direction slide rail is movably connected to a y-direction slide rail through a slide plate or a bracket. The y-direction slide rail is arranged on the mounting plate 43.

[0058] As a further implementation manner, the first horizontal processing mechanism 431 and the second horizontal processing mechanism 433 are respectively located in the spaces on both sides of the horizontal direction of the profile to be processed, that is, arranged along the y direction.

[0059] As a further implementation manner, the first vertical processing mechanism 432 and the second vertical processing mechanism 434 are respectively located in the upper space and the lower space of the profile to be processed, and both have two processing main machines with different powers. The processing main machines with different powers are switched according to the needs of drilling and milling. For example, a processing main machine with a larger power is used for profiles with a thicker wall thickness, which greatly improves the efficiency; a processing main machine with a smaller power is used for profiles with a thinner wall thickness, which can save energy and avoid waste on the premise of meeting the efficiency; the upper and lower sides are common processing positions for curtain wall profiles, and the two processing main machines in each processing mechanism here also reduce the frequency of tool changing, indirectly improving the processing efficiency.

[0060] As a further implementation manner, the four groups of processing mechanisms have a total of six processing spindles. Among them, the first vertical processing mechanism 432 and the second vertical processing mechanism 434 respectively have two processing spindles, and the first horizontal processing mechanism 431 and the second horizontal processing mechanism 433 respectively have one processing spindle, forming an arrangement mode with six processing spindles for the four groups of processing mechanisms.

[0061] As shown in Figure 5 the first horizontal processing mechanism 431, the first vertical processing mechanism 432, the second horizontal processing mechanism 433 and the second vertical processing mechanism 434 are distributed in the surrounding area of the feeding hole.

[0062] As shown in Figure 5 and Figure 6 the fixed fixture includes a support roller A421 connected to the mounting plate 43 and arranged horizontally. A vertical pressing roller A422 is provided in the upper space of the support roller A421. A horizontal backrest wheel A423 arranged vertically is provided at one end of the support roller A421, and a horizontal pressing wheel B424 is provided at the other end.

[0063] As a further implementation manner, as shown inFigure 5 and Figure 6 As shown in Figure 6 , the supporting roller A421, the vertical pressing roller A422, the horizontal backing wheel A423 and the horizontal pressing wheel A424 can all rotate and contact the surface of the profile in a rolling friction manner, avoiding scratching the surface of the profile. The rotation method is adopted to maintain the clamping force while allowing the profile to move smoothly, avoiding machining errors (such as dimensional deviation or cut burrs) caused by resistance. 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.

[0064] As a further implementation, as Figure 5 and Figure 6 shown, the vertical pressing roller A422 is connected to the first pressing cylinder 425, and the first pressing cylinder 425 acts in the vertical direction, driving the vertical pressing roller A422 to move towards the direction close to the supporting roller A421, pressing the profile from the vertical direction.

[0065] As a further implementation, as Figure 5 and Figure 6 shown, both the supporting roller A421 and the horizontal backing wheel A423 have at least two groups arranged in parallel. The number of the vertical pressing rollers A422 is not limited specifically. The movement axis of the horizontal pressing wheel A424 is located between the two groups of supporting rollers A421. With this quantity configuration, a relatively more reliable clamping force can be obtained.

[0066] As a further implementation, as Figure 5 and Figure 6 shown, the horizontal pressing wheel A424 is connected to the first horizontal clamping cylinder 426, and the first horizontal clamping cylinder 426 acts in the horizontal direction (y direction), driving the horizontal pressing wheel A424 to move towards the direction close to the horizontal backing wheel A423, clamping the profile from the horizontal direction.

[0067] The traditional method usually realizes fixation by horizontal clamping or vertical clamping. However, the cross-section width of the curtain wall profile is larger, and single-direction clamping cannot cope with the vibration problem caused during processing. Therefore, the profile is clamped from both the horizontal direction and the vertical direction, clamping the profile from different directions to ensure that the influence of vibration on the processing quality is reduced as much as possible.

[0068] As a further implementation, a second horizontal clamping cylinder 427 can also be set. The second horizontal clamping cylinder 427 acts in the horizontal direction (y direction), driving the first horizontal clamping cylinder 426 together with the horizontal pressing wheel A424 to move towards the direction close to the horizontal backing wheel A423, clamping the profile from the horizontal direction. The action strokes of the second horizontal clamping cylinder 427 and the first horizontal clamping cylinder 426 can be the same or different, which is used to cope with the clamping of profiles with different widths.

[0069] 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 stroke (for some processing requirements, it may be the opposite, depending on the specific structural requirements of the profile). When clamping, the large-stroke cylinder action requires a certain amount of time. Since both double cylinders move along the y direction, a segmented pressing form can be achieved. 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 and the time-consuming during the action, thereby saving the clamping time and improving the processing efficiency.

[0070] The specific structure of the follower fixture 41 is as Figures 7 - 8 shown, including a base 411. A guide rail 418 and a ball screw mechanism 416 are provided on the upper surface of the base 411. The guide rail 418 is movably connected to a slide plate 417, and the slider of the ball screw mechanism 416 is connected to the slide plate 417. A motor is provided inside the base 411, and the motor drives the ball screw mechanism 416 to move, driving the slide plate 417 to move in the x direction.

[0071] As a further implementation, a support roller B412 is provided on the upper surface of the slide plate 417. A vertical pressing roller B415 is provided in the space above the support roller B412. A horizontally arranged horizontal backing wheel B413 is provided at one end of the support roller B412, and a horizontal pressing wheel B414 is provided at the other end.

[0072] As a further implementation, the vertical pressing roller B415 is connected to a second pressing cylinder 4151. The second pressing cylinder 4151 acts in the vertical direction, driving the vertical pressing roller B415 to move towards the direction close to the support roller B412, and pressing the profile in the vertical direction.

[0073] As a further implementation, the horizontal pressing wheel B414 is connected to a third horizontal clamping cylinder 4141. The third horizontal clamping cylinder 4141 acts in the horizontal direction (y direction), driving the horizontal pressing wheel B414 to move towards the direction close to the horizontal backing wheel B413, and clamping the profile in the horizontal direction.

[0074] The traditional method usually uses horizontal clamping or vertical clamping to achieve fixation. However, the cross-section width of curtain wall profiles is larger, and single-direction clamping cannot cope with the vibration problems caused during processing. Therefore, the profile is clamped simultaneously from the horizontal direction and the vertical direction, clamping the profile from different directions to ensure that the impact of vibration on the processing quality is reduced as much as possible.

[0075] As a further implementation, a fourth horizontal clamping cylinder 4142 can be provided. The fourth horizontal clamping cylinder 4142 operates in the horizontal direction (y direction), driving the third horizontal clamping cylinder 4141 together with the horizontal pressing wheel B414 to move towards the direction close to the horizontal backing wheel B413, clamping the profile in the horizontal direction. The operating strokes of the fourth horizontal clamping cylinder 4142 and the third horizontal clamping cylinder 4141 are different, which is used to cope with the clamping of profiles with different widths. Here, similar to the fixed fixture, two sets of fixtures that operate along the y direction and share the same track are involved, also based on reducing the clamping time.

[0076] As a further implementation, both the support roller B412 and the horizontal backing wheel B413 have at least two sets arranged in parallel. The specific number of the vertical pressing rollers B415 is not limited. The movement axis of the horizontal pressing wheel B414 is located between the two sets of support rollers B412. With this quantity configuration, relatively more reliable clamping force can be obtained.

[0077] During the drilling and milling process when the profile moves along the x direction, while the follower fixture 41 remains clamped, the position of the pressing point on the follower fixture follows the traveling direction of the profile through the movement of the slide plate and always maintains a stable distance from the processing mechanism, with a better supporting effect and higher quality of the drilled and milled slots.

[0078] Taking drilling as an example, during the process when the profile travels along the x direction, an initial position is set as the 0 position, which can be, for example, the position where the fixed fixture is located. Set the distance between the current position to be processed and the 0 position in the x direction as A1. Driven by the upstream manipulator, the profile moves along the x direction to the area close to the position A1 and then stops moving. Each of the four processing mechanisms (the first horizontal processing mechanism 431, the first vertical processing mechanism 432, the second horizontal processing mechanism 433, and the second vertical processing mechanism 434) in the drilling and milling unit body has the ability to move in the x direction. Based on the 0 position as a reference, each processing mechanism moves along the x direction to the position where drilling is required. At this time, each processing mechanism makes a small-range movement in the x direction to accurately find the position to be processed. During the movement, the follower fixture 41 moves in the x direction following the processing mechanism and always maintains a set distance from the processing mechanism, so that during the drilling by the processing mechanism, there is always a clamping and fixing point within the set range around the drilling position, which can avoid the problem of insufficient drilling accuracy caused by vibration.

[0079] After the hole at position A1 is machined, the profile moves to a position near the next drilling position A2 and stops. During the movement of the relevant machining mechanism along the x-direction to the drilling position A2, the follower fixture 41 remains in the clamped state and moves synchronously with the machining mechanism, maintaining a set distance from the machining mechanism. And so on, until the holes at all drilling positions are machined, the follower fixture 41, the fixed fixture and each machining mechanism return to their original positions, and the profile moves to the subsequent sawing and milling unit.

[0080] Since there are four groups of machining mechanisms, which are respectively used to meet the machining requirements of different positions of the profile, the follower fixture 41 can be set to follow one or several of the machining mechanisms according to the actual machining requirements. There is no specific limitation in this embodiment, and it can be set according to the actual drilling and milling machining requirements of the profile. The purpose is to make the follower fixture 41 follow the target machining mechanism in the x-direction while maintaining the clamped state and keeping the set distance, ensuring that the clamping influence area of the follower fixture 41 can always cover the position where the next machining action is located.

[0081] For curtain wall profiles, since the wall thickness is much larger than that of conventional door and window profiles, and the cross-sectional structure is more complex, its own stiffness is already high enough. Even if a high-power machining host is used for machining requirements, it is very difficult to make it bend. However, due to the need to reserve installation space and movement space for the high-power machining host, the distance between the two clamping points on the curtain wall profile will be larger, which will bring a flutter problem. And the follower fixture 41 follows the target machining mechanism in the x-direction while maintaining the clamped state, ensuring that the position where each machining action is located falls within the clamping influence area of the follower fixture 41, which can ensure that the influence of flutter on the machining quality is reduced as much as possible.

[0082] For milling machining, based on the same principle, there are an initial position and an end position in milling machining. After the machining mechanism moves to achieve feed, during the movement along the x-direction between the initial position and the end position, the follower fixture 41 follows the machining mechanism in the x-direction while maintaining the clamped state and keeping the set distance.

[0083] Embodiment 2:

[0084] The profile machining center is as Figure 1 shown, including a base 1. A gantry A2 and a gantry B3 arranged in parallel are provided on the upper surface of the base 1. A drilling and milling unit 4 is provided outside the gantry A2. The space between the gantry A2 and the gantry B3 accommodates a sawing and milling unit 5, and the drilling and milling unit 4 therein is the drilling and milling unit applicable to curtain wall profiles in Embodiment 1.

[0085] The profile is grasped by a mechanical gripper and fed into the Figure 1 shown machining center, and after passing through as Figures 2 - 3In the shown drilling and milling unit, it is clamped and fixed by the fixed fixture and the follower fixture 41, and the drilling and milling process starts; after the drilling and milling process is completed, it is sent to the subsequent sawing and milling unit 5 for sawing and milling according to the processing requirements. After the sawing and milling is finished, the front section of the profile is taken out and unloaded by the gripper at the discharging end.

[0086] Embodiment 3:

[0087] The working method of the above-mentioned drilling and milling unit includes the following steps:

[0088] The profile is grasped by the mechanical gripper and fed into the drilling and milling unit along the X direction. It is clamped and fixed by the fixed fixture and the follower fixture 41, and the drilling and milling process starts using each processing mechanism in the drilling and milling unit.

[0089] During the processing, while maintaining the clamping state, the follower fixture 41 moves in the x direction following the target processing mechanism and maintains a set distance.

[0090] After the drilling and milling process is completed, it is sent to the subsequent sawing and milling unit 5 for sawing and milling according to the processing requirements. After the sawing and milling is finished, the front section of the profile is taken out and unloaded by the gripper at the discharging end.

[0091] In view of the structural characteristics of large volume and high wall thickness of curtain wall profiles, a follower fixture is arranged in front of the drilling and milling area, which can follow the actions of the drilling and milling process, make the profile move along the feeding direction, ensure that the current processing position of the profile is as close as possible to the pressing and fixing point, and solve the problem of unsatisfactory processing quality caused by the excessive distance between the profile and the fixing point in the existing method.

[0092] 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 in the protection scope of the present invention.

Claims

1. A drilling and milling unit applicable to curtain wall profiles, characterized in that Comprising: A processing mechanism, having at least one set, arranged on the side of the profile to be processed, running linearly to each processing position, and realizing drilling or milling through the feeding movement towards the profile to be processed; A fixture, including a fixed fixture and a follower fixture arranged in parallel. The fixed fixture is connected to the base and is used to clamp the profile to be processed. In the clamped state, the follower fixture moves along the profile feeding direction following at least one set of processing mechanisms and maintains a set distance from the followed processing mechanism; Among them, the follower fixture includes a base connected to the base. The upper surface of the base is provided with a slide rail arranged along the profile feeding direction. The slide rail is movably connected to a slide plate. The upper surface of the slide plate is provided with a support roller. A vertical pressing roller is arranged in the space above the support roller. A horizontally arranged vertical backing wheel is arranged at one end of the support roller, and a horizontal pressing wheel is arranged at the other end.

2. The drilling and milling processing unit applicable to curtain wall profiles according to claim 1, characterized in that The processing mechanism includes a first horizontal processing mechanism, a first vertical processing mechanism, a second horizontal processing mechanism, and a second vertical processing mechanism. The four sets of processing mechanisms are used to drill and mill the profile from four side directions of the profile cross-section. Each set of processing mechanisms has movements in three directions of X, Y, and Z. Among them, the X direction is the profile feeding direction.

3. The drilling and milling unit applicable to curtain wall profiles according to claim 2, wherein The first vertical processing mechanism and the second vertical processing mechanism are respectively located on the upper and lower two sides of the profile to be processed, and both have two processing main machines with different powers.

4. The drilling and milling processing unit applicable to curtain wall profiles according to claim 1, characterized in that, The fixed fixture includes a horizontally arranged support roller A. A vertical pressing roller A is arranged in the space above the support roller A. A horizontally arranged vertical backing wheel A is arranged at one end of the support roller A, and a horizontal pressing wheel B is arranged at the other end.

5. The drilling and milling processing unit applicable to curtain wall profiles according to claim 4, characterized in that, The vertical pressing roller A and the horizontal pressing wheel A are connected to corresponding cylinders, and under the drive of their respective cylinders, clamp the profile to be processed from the vertical direction and the horizontal direction respectively.

6. The drilling and milling unit applicable to curtain wall profiles according to claim 1, wherein In the follower fixture, the upper surface of the slide plate is provided with a support roller B. A vertical pressing roller B is arranged in the space above the support roller B. A horizontally arranged vertical backing wheel B is arranged at one end of the support roller B, and a horizontal pressing wheel B is arranged at the other end.

7. The drilling and milling unit applicable to curtain wall profiles according to claim 6, characterized in that, The vertical pressing roller B and the horizontal pressing wheel B are connected to corresponding cylinders, and under the drive of their respective cylinders, clamp the profile to be processed from the vertical direction and the horizontal direction respectively.

8. The drilling and milling processing unit applicable to curtain wall profiles according to claim 1, characterized in that, The support rollers, vertical pressing rollers, horizontal backing wheels, and horizontal pressing wheels in the fixed fixture and the follower fixture can all rotate.

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

10. The working method of the profile processing center according to claim 9, characterized in that, Including the following steps: The profile is fed into the drilling and milling processing unit along the x direction, clamped and fixed by the fixed fixture and the follower fixture, and the drilling and milling processing is started using each processing mechanism in the drilling and milling processing unit; During the processing, in the state of maintaining clamping, the follower fixture moves in the x direction following the target processing mechanism and maintains a set distance; After the drilling and milling processing is completed, it is fed into the subsequent sawing and milling unit for sawing and milling 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.

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