A dust removal system for a gantry five-axis machining center

Abstract

The present application discloses a dust removal system for a gantry five-axis machining center, which relates to the field of gantry machining centers, and includes a machining center and a dust collection device. The machining center includes two parallel and spaced mounting frames, a crossbeam slidably arranged on the two mounting frames, a processing space is provided between the two mounting frames, and a blowing flare and a dust extraction flare are respectively provided on the inner sides of the two mounting frames. The blowing flare and the dust extraction flare are arranged relative to each other, and the dust extraction flare is connected to the air extraction port of the dust collection device through a pipe, and the blowing flare is connected to the air outlet of the dust collection device through a pipe. The present application has the effect of improving the dust removal effect of the dust removal system in the processing space and reducing the occurrence of dust chips spreading to the outside.

Description

Technical Field

[0001] The present application relates to the field of gantry machining centers, and in particular to a dust removal system for a gantry five-axis machining center. Background Art

[0002] A gantry machining center is a machining center in which the axis of the spindle Z-axis is set perpendicular to the worktable. It is mainly divided into fixed beam type, movable beam type, movable column type, overhead crane type and various composite types. It is particularly suitable for machining large workpieces and workpieces with complex shapes.

[0003] In the related art, a gantry machining center includes a mounting frame arranged in the horizontal direction, two mounting frames are arranged in parallel and spaced apart along the width direction of the mounting frame, a crossbeam is arranged between the two mounting frames, and the two ends of the crossbeam in the length direction are respectively connected to the two mounting frames in a sliding manner along the length direction of the mounting frames, and both mounting frames are provided with a first linear module for driving the displacement of the crossbeam. A vertical frame is slidably connected to the crossbeam in the length direction of the crossbeam, and a second linear module for driving the vertical frame to slide is also provided on the crossbeam. A tool holder is provided on the vertical frame for sliding in the vertical direction, and a third linear module for driving the tool holder to move up and down is provided on the vertical frame. In order to reduce the occurrence of large-scale diffusion of dust generated during the processing, a dust extraction port is often provided on the tool holder or the mounting frame, and the dust extraction port is connected to the exhaust fan provided on the outside of the machining center through a pipeline, thereby removing dust from the processing space.

[0004] Regarding the above-mentioned related technologies, when processing the workpiece, the tool on the tool holder rotates at high speed to cut the workpiece, which will generate a large amount of powder flying at a relatively fast speed. The dust extraction port installed on the tool holder or the mounting frame can absorb some of the powder, but there is still a large amount of powder spreading outward, and the dust removal effect is relatively weak, and there is room for improvement. Summary of the Invention

[0005] In order to improve the problem of weak dust removal effect of the gantry machining center in the related art, the present application provides a dust removal system for a gantry five-axis machining center.

[0006] This application provides a dust removal system for a gantry five-axis machining center, which adopts the following technical solutions:

[0007] A dust removal system for a gantry five-axis machining center includes a machining center and a dust collecting device. The machining center includes two parallel and spaced mounting frames, and a crossbeam slidably arranged on the two mounting frames. A processing space is formed between the two mounting frames. A blowing flare and a dust extraction flare are respectively provided on the inner sides of the two mounting frames. The blowing flare and the dust extraction flare are arranged opposite to each other. The dust extraction flare is connected to the air exhaust port of the dust collecting device through a pipeline, and the blowing flare is connected to the air outlet of the dust collecting device through a pipeline.

[0008] By adopting the above technical solution, in actual use, the dust collection equipment sucks the air and dust in the processing space through the dust flaring, and intercepts and collects the dust; then, the dust collection equipment sends the relatively clean air back to the processing space through the blowing flaring, and blows the dust in the processing space toward the side of the dust flaring. In this process, the dust that is moving at a low speed in the processing space will be given kinetic energy to move toward the dust flaring by the air beam blown out by the blowing flaring, and can be collected by the dust collection equipment more quickly under the suction of the dust flaring; the dust flying at a faster speed can change its direction of movement under the influence of the air beam blown out by the blowing flaring, and can be relatively easily captured and sent to the dust flaring. In this way, the dust removal effect of the dust removal system on the machining center is improved, and the spread of dust to the outside world is reduced.

[0009] Preferably, opening and closing doors and blocking walls are respectively provided on both sides of the length direction of the mounting frame, and the opening and closing doors and blocking walls respectively close the processing space on both sides of the length direction of the mounting frame, and accordion covers are provided on both sides of the beam in the length direction of the mounting frame, and the two accordion covers close the upper side of the processing space, and the edges of the two accordion covers that are away from each other are respectively fixed at the two ends of the length direction of the mounting frame, and the edges of the two accordion covers that are close to each other are fixedly connected to the beam.

[0010] By adopting the above technical solution, the opening and closing doors, blocking walls and accordion covers prevent flying powder from spreading to the outside of the processing space. When the beam moves along the length of the mounting frame, the two accordion covers will expand or contract and continue to close the upper side of the processing space, thereby further reducing the occurrence of flying powder spreading outward.

[0011] Preferably, a plurality of dust extraction expansion ports are arranged at intervals on the inner side of the corresponding mounting frame along the length direction of the mounting frame, each of the dust extraction expansion ports is connected to a dust extraction pipe, the air suction port of the dust collecting device is connected to a dust extraction main pipe, each of the dust extraction pipes is connected to the dust extraction main pipe, and all the dust extraction pipes are connected to the dust extraction main pipe at intervals in sequence, and the diameter of the dust extraction main pipe shrinks step by step from one side of the dust collecting device to the side away from the dust collecting device.

[0012] By adopting the above technical solution, on the one hand, multiple dust extraction expansion ports are set to improve the suction effect of dust and chips and reduce the occurrence of dust and chips filling the processing space; on the other hand, the dust extraction main pipe is contracted in sections to ensure the suction strength of each dust extraction pipe.

[0013] Preferably, a grille is provided on the inner side of the mounting frame on the side of the dust extraction expansion opening, and the grille covers the dust extraction expansion opening.

[0014] By adopting the above technical solution, the grille cover is provided with a dust extraction expansion port, which reduces the occurrence of larger debris entering the dust extraction expansion port and helps to ensure the normal operation of the dust removal system.

[0015] Preferably, the grille includes a frame and a plurality of blades arranged on the inner side of the frame, each of the blades is vertical, and both ends of each blade are rotatably connected to the side edges of the frame. The mounting frame is also provided with a driving assembly for driving all the blades to rotate back and forth.

[0016] By adopting the above technical solution, the driving assembly drives the blades to rotate, thereby changing the suction direction of the dust extraction expansion port through the grille, expanding the dust extraction range of the dust extraction expansion port, and helping to improve the dust extraction effect of the dust removal system on the machining center.

[0017] Preferably, a rotating shaft is fixed to the upper end of each blade, each rotating shaft is collinear with the rotation axis of the corresponding blade, and a rocker is vertically fixed to each rotating shaft;

[0018] A traction rod is provided at one end of the rocker arm away from the rotating shaft, and the traction rod is arranged along the length direction of the mounting frame. One end of each rocker arm away from the corresponding rotating shaft is hinged to the traction rod, and all the rocker arms are parallel to each other. The driving assembly drives the traction rod to reciprocate and drives all the blades to rotate synchronously.

[0019] By adopting the above technical solution, the driving assembly drives the traction rod to move and drives all the blades to rotate back and forth, thereby helping to ensure the consistency of the movement of all blades and helping to ensure that the dust removal system can smoothly suck away the dust.

[0020] Preferably, the driving assembly includes a driving member and a push rod, the push rod is arranged along the length direction of the traction rod, and the push rod is slidably arranged on the mounting frame along the length direction thereof, and the driving member is in transmission connection with the push rod and drives the push rod to slide back and forth;

[0021] A telescopic rod is arranged between the push rod and the traction rod in the horizontal direction. One end of the telescopic rod is fixed to the middle part of the traction rod, and the other end of the telescopic rod is fixed to the push rod.

[0022] By adopting the above technical solution, in actual use, the driving member drives the push rod to slide back and forth, and drives the traction rod to move back and forth. At the same time, the telescopic movement of the telescopic rod adapts to the movement of the traction rod along the width direction of the mounting frame, thereby specifically realizing the driving operation of the traction rod and all blades, and ensuring the normal operation of changing the suction direction of the suction expansion port.

[0023] Preferably, the dust extraction expansion openings are arranged in plurality on the corresponding mounting frame at intervals along the length direction of the mounting frame, the grilles correspond to the dust extraction expansion openings one by one, the rocker arm, traction rod and telescopic rod are all arranged corresponding to the grilles, and the end of each telescopic rod facing away from the traction rod is fixed on the push rod.

[0024] By adopting this technical solution, a single drive element propels the push rod and controls the movement of each grille blade, helping to reduce costs. Furthermore, each dust extraction flare has a relatively consistent suction direction, which reduces the chance of crossover between the suction directions. This results in a relatively large suction range and helps ensure smooth dust extraction by the dust removal system.

[0025] Preferably, each swing rod is parallel to the width direction of the corresponding blade, the telescopic rod includes an outer rod and an inner rod passing through the outer rod, the end of the outer rod facing away from the inner rod is fixed to the traction rod, the end of the inner rod facing away from the outer rod is fixed with a first magnetic block, the push rod is fixed with a second magnetic block, and the end of the inner rod facing away from the outer rod is fixed to the push rod through magnetic attraction of the first and second magnetic blocks;

[0026] A vertical rod is fixed vertically upwards to the middle of the inner rod, and a push plate is fixed to the lower side of the cross beam. The push plate is arranged along the length direction of the mounting frame, and is located on the side of the vertical rod away from the traction rod. Both sides of the side surface of the push plate close to the vertical rod in the length direction are chamfered to form a guiding inclined surface;

[0027] When the push plate moves with the crossbeam, the guiding inclined surface will abut against the vertical rod and push the vertical rod and the inner rod to move away from the push rod, and the first magnetic block and the second magnetic block will be disengaged;

[0028] Furthermore, both ends of the traction rod are provided with centering springs, one end of each of the two centering springs is fixed to both ends of the traction rod, and the other ends of the two centering springs are away from each other and fixed to the mounting frame;

[0029] When the drawbar is centered, the rocker arm is perpendicular to the length direction of the mounting bracket.

[0030] By adopting the above technical solution, when the crossbeam moves toward the top of the grille, the tool holder and the push plate move with the crossbeam, and the processing position of the workpiece by the machining center will also face the grille; at this time, the guiding slope of the push plate will abut the vertical rod and push the vertical rod and the inner rod to move away from the push rod, the first magnetic block and the second magnetic block will be disengaged, and under the action of the two centering springs, the traction rod will be centered, and each rocker arm and blade will be in a perpendicular state to the traction rod. The suction direction of the dust expansion port will face the processing position of the workpiece, and the powder chips generated by the processing can be sucked in time, which helps to further improve the dust extraction system's suction effect on the powder chips in the processing space.

[0031] In addition, when the push plate is separated from the vertical pole, the push rod is driven by the driving member to move; when the second magnetic block is facing the first magnetic block, the second magnetic block will attract the first magnetic block, and the inner rod of the telescopic rod will move toward the second magnetic block, and the first magnetic block and the second magnetic block will be attracted; at this time, the driving member and the push rod cooperate to continue to drive the traction rod and the blade to reciprocate.

[0032] Preferably, a stabilizing block is fixed on the push rod, the stabilizing block faces one side of the telescopic rod, a stabilizing groove is formed on the stabilizing block, the notch of the stabilizing groove faces one side of the telescopic rod, the second magnetic block is embedded in the bottom of the stabilizing groove and is fixed to the stabilizing block, and the first magnetic block is embedded in the stabilizing groove and is magnetically engaged with the first stabilizing block;

[0033] Furthermore, the notch of the stabilizing groove is chamfered to form a guiding surface.

[0034] By adopting the above technical solution, on the one hand, the first magnetic block is embedded in the stabilizing groove. When the push rod pushes the telescopic rod and the traction rod to move along the length direction of the push rod, the inner wall of the stabilizing groove prevents the first magnetic block and the second magnetic block from disengaging, which helps to ensure the stability of the movement of the telescopic rod and the traction rod driven by the push rod;

[0035] On the other hand, when the first magnetic block is embedded in the stable groove under the magnetic attraction of the second magnetic block, the first magnetic block is guided into the stable groove by the guiding surface, which helps to improve the convenience of embedding the first magnetic block into the stable groove.

[0036] In summary, this application includes at least one of the following beneficial technical effects:

[0037] 1. Blow the powder chips to the side of the dust extraction expansion port by blowing the expansion port, thereby improving the dust removal effect of the dust removal system in the processing space and reducing the occurrence of powder chips spreading to the outside.

[0038] 2. Block the flying powder from spreading to the outside of the processing space by opening and closing doors, blocking walls and accordion covers, further reducing the occurrence of flying powder spreading outward. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 This is an axonometric diagram showing the overall structure of a dust removal system for a gantry five-axis machining center according to the first embodiment;

[0040] Figure 2 This is a schematic diagram mainly showing the structure of a machining center according to the first embodiment;

[0041] Figure 3 This is a schematic diagram of the structure of the dust extraction main and explosion-proof dust collector of embodiment 1;

[0042] Figure 4 This is a schematic diagram of the structure of a machining center according to the second embodiment;

[0043] Figure 5 This is a partial cross-sectional view of the grille and drive assembly structure of the second embodiment;

[0044] Figure 6 for Figure 5 The enlarged view of part A mainly shows the schematic diagram of the traction rod and telescopic rod structure;

[0045] Figure 7 This is a schematic diagram of the second embodiment mainly showing the structure of the stabilizing block and the telescopic rod.

[0046] Figure 1: Machining center; 11: Machining space; 2: Mounting frame; 21: Opening and closing door; 22: Blocking wall; 23: Blowing flare; 24: Dust extraction flare; 25: Grille; 251: Frame; 252: Blade; 253: Rotating shaft; 254: Rocker; 26: Static eliminator; 27: Mounting slot; 28: Avoidance slot; 3: Crossbeam; 31: Sliding slot; 32: Stand; 33: Tool holder; 4: Dust collecting equipment; 41: Blowing main pipe; 42: Blowing Delivery pipe; 43. Dust extraction main pipe; 44. Dust extraction pipe; 5. Closure assembly; 51. Organ cover; 52. Telescopic cover; 6. Drive assembly; 61. Electric cylinder; 62. Push rod; 621. Stabilizing block; 622. Stabilizing groove; 623. Second magnetic block; 624. Guide surface; 7. Traction rod; 71. Centering spring; 72. Telescopic rod; 721. Outer rod; 722. Inner rod; 7221. Vertical rod; 723. First magnetic block; 8. Push plate; 81. Guide slope. DETAILED DESCRIPTION

[0047] The present application is further described in detail below with reference to the accompanying drawings.

[0048] The embodiment of the present application discloses a dust removal system for a gantry five-axis machining center.

[0049] Example 1:

[0050] Reference Figure 1 and Figure 2 The dust removal system for the gantry five-axis machining center includes a machining center 1 and a dust collecting device 4. The machining center 1 includes a mounting frame 2 and a crossbeam 3. Two mounting frames 2 are arranged at intervals along the width direction of the mounting frame 2. The two ends of the crossbeam 3 are respectively slidably connected to the two mounting frames 2. A processing space 11 is formed between the two mounting frames 2. The processing space 11 is respectively installed with an opening and closing door 21 and a blocking wall 22 on both sides in the length direction of the mounting frame 2, and the opening and closing door 21 and the blocking wall 22 close the processing space 11 on both sides in the length direction of the mounting frame 2. A sliding groove 31 is provided in the middle of the crossbeam 3. The sliding groove 31 is arranged along the length direction of the crossbeam 3. The sliding groove 31 passes through the crossbeam 3 from top to bottom. A vertical frame 32 is provided on the crossbeam 3. The vertical frame 32 passes through the sliding groove 31 from top to bottom and is slidably connected to the sliding groove 31. A tool holder 33 is provided on the lower side of the vertical frame 32. The upper side of the two mounting frames 2 is provided with a closing assembly 5 for closing the upper side of the processing space 11, and the inner side of the two mounting frames 2 is provided with a blowing expansion 23 and a dust extraction expansion 24 (see Figure 3 ), the blowing flare 23 and the dust extraction flare 24 are arranged opposite to each other, the blowing flare 23 is connected to the air outlet of the dust collecting device 4 through a pipeline, and the dust extraction flare 24 is connected to the air exhaust port of the dust collecting device 4 through a pipeline.

[0051] In actual use, the closing component 5, the opening and closing door 21 and the blocking wall 22 cooperate to prevent high-speed flying powder from spreading to the outside of the processing space 11. At the same time, the dust extraction equipment blows the powder to the side of the dust extraction expansion port 24 through the blowing expansion port 23, and the dust extraction equipment sucks and collects the powder in the processing space 11 through the dust extraction expansion port 24.

[0052] Specifically, see Figure 1 and Figure 2 The closing assembly 5 includes an accordion cover 51 and a telescopic cover 52. The accordion cover 51 and the telescopic cover 52 are the same type of items and are named differently for the convenience of explanation. An accordion cover 51 is provided on both sides of the crossbeam 3 in the length direction of the mounting frame 2. The edges of the two accordion covers 51 that are separated from each other are fixed to the two ends of the length direction of the mounting frame 2, and the edges of the two accordion covers 51 that are close to each other are fixed to the opposite sides of the crossbeam 3. A telescopic cover 52 is provided on both sides of the vertical frame 32 in the length direction of the crossbeam 3. The edges of the two telescopic covers 52 that are separated from each other are fixed to the two ends of the length direction of the crossbeam 3, and the edges of the two telescopic covers 52 that are close to each other are fixed to the opposite sides of the vertical frame 32. In addition, the two accordion covers 51 and the two telescopic covers 52 cooperate to enclose the top of the processing space 11. When the crossbeam 3 moves along the length direction of the mounting frame 2, the two accordion covers 51 will extend or contract and continue to close the processing space 11 on both sides of the crossbeam 3; when the vertical frame 32 moves along the length direction of the crossbeam 3, the two telescopic covers 52 will extend or contract and continue to close the sliding groove 31, thereby preventing high-speed flying powder from spreading to the outside of the processing space 11.

[0053] See also Figure 2 and Figure 3Three blowing flares 23 and three dust extraction flares 24 are evenly spaced along the length of the corresponding mounting frame 2. A grille 25 is bolted to the inside of each mounting frame 2. The grille 25 corresponds to the blowing flare 23 and the dust extraction flare 24, and each blowing flare 23 and dust extraction flare 24 is covered by the corresponding grille 25. A blowing main pipe 41 is provided on the outside of the mounting frame 2 on one side of the blowing flare 23. Each blowing flare 23 is connected to a blowing pipe 42. Each blowing pipe 42 passes through the corresponding mounting frame 2 and connects to the blowing main pipe 41. The three blowing pipes 42 are spaced apart at their connection points with the blowing main pipe 41. The ends of the blowing main pipe 41 are connected to the air outlet of the dust collection device 4, and the diameter of the blowing main pipe 41 gradually decreases from one side of the dust collection device 4 to the side facing away from the dust collection device 4. A dust extraction pipe 43 is provided on the outside of the mounting frame 2, located on one side of the dust extraction flare 24. Each dust extraction pipe 44 is connected to each dust extraction flare 24. Each dust extraction pipe 44 passes through the corresponding mounting frame 2 and connects to the dust extraction pipe 43. The three dust extraction pipes 44 are spaced apart from each other at their connection points with the dust extraction pipe 43. The ends of the dust extraction pipes 43 are connected to the air extraction port of the dust collection device 4, and the diameter of the dust extraction pipe 43 gradually decreases from one side of the dust collection device 4 to the side facing away from the dust collection device 4.

[0054] The dust collection device 4 is an explosion-proof dust collector with an integrated fan. The fan draws dust into the explosion-proof dust collector through the dust flare 24, dust pipe 44, and dust main pipe 43. The dust is then filtered and collected within the explosion-proof dust collector. The filtered air is then delivered into the processing space 11 through the blowing main pipe 41, blowing pipe 42, and blowing flare 23, maintaining the air pressure within the processing space 11 while blowing the dust toward the dust flare 24.

[0055] See also Figure 2 In order to eliminate the static electricity carried by the dust, an electrostatic eliminator 26 is also provided on the inner side of the mounting frame 2. The electrostatic eliminator 26 can generate positive and negative charges and neutralize the charge carried by the dust, thereby eliminating most of the static electricity carried by the dust and improving the safety of the dust collection operation.

[0056] The implementation principle is as follows: in actual use, the closing component 5, the opening and closing door 21 and the blocking wall 22 cooperate to prevent high-speed flying dust from spreading to the outside of the processing space 11; at the same time, under the action of the fan in the explosion-proof dust collector, the dust will be drawn into the explosion-proof dust collector through the dust extraction expansion port 24, the dust extraction pipe 44 and the dust extraction main pipe 43, and then the dust will be filtered and collected in the explosion-proof dust collector; relatively clean air will be sent into the processing space 11 through the blowing main pipe 41, the blowing pipe 42 and the blowing expansion port 23, maintaining the air pressure in the processing space 11, and blowing the dust toward the dust extraction expansion port 24.

[0057] Example 2:

[0058] Reference Figure 4 and Figure 5 This embodiment differs from the first embodiment in that the mounting bracket 2 on the side of the dust extraction expansion opening 24 is defined as the dust extraction side mounting bracket 2. The mounting method and structure of each dust extraction expansion opening 24 and grille 25 on the dust extraction side mounting bracket 2 are the same. The following description will use any one dust extraction expansion opening 24 and grille 25 as an example.

[0059] The dust extraction mounting frame 2 is provided with a mounting slot 27, the opening of which is located inside the dust extraction mounting frame 2. The dust extraction flare 24 is located within the mounting slot 27, and the grille 25 covers the opening of the mounting slot 27. The grille 25 comprises a frame 251 and a plurality of blades 252 located inside the frame 251. The peripheral edges of the dust extraction flare 24 abut against the frame 251 and are secured to the frame 251 by bolts. Each blade 252 is vertical, with both ends pivotally connected to the upper and lower side edges of the frame 251. The mounting frame 2 is also provided with a drive assembly 6 that drives all blades 252 in reciprocating rotation.

[0060] Specifically, see Figure 5 and Figure 6 A rotating shaft 253 is fixed to the upper end of each blade 252. Each rotating shaft 253 is collinear with the rotation axis of the corresponding blade 252 and extends upward to the upper side of the frame 251. A rocker 254 is perpendicularly fixed to each rotating shaft 253. Each rocker 254 is parallel to the width of the blade 252 and faces the inside of the mounting slot 27. A traction rod 7 is located above the mounting slot 27. The traction rod 7 runs along the length of the mounting frame 2. Each rocker 254's end facing away from the corresponding rotating shaft 253 is hinged to the traction rod 7, and all rockers 254 are parallel to each other. Furthermore, centering springs 71 are attached to each end of the traction rod 7. Two sections of the centering springs 71 are fixed to each end of the traction rod 7, with the other ends of the two centering springs 71 facing away from each other and aligned with the sidewalls of the mounting slot 27. When the traction rod 7 is centered under the action of the two centering springs 71, each rocker 254 is perpendicular to the traction rod 7.

[0061] See also Figure 5 and Figure 6 The dust extraction side mounting frame 2 has a downward-facing escape groove 28 extending along the length of the mounting frame 2. The drive assembly 6 includes a drive member and a push rod 62. The push rod 62 is located within the escape groove 28 and extends along the length of the traction rod 7. The push rod 62 is slidably mounted on the dust extraction side mounting frame 2 along its length. The drive member is an electric cylinder 61. The cylinder body of the electric cylinder 61 is fixed to the dust extraction side mounting frame 2. The output rod of the electric cylinder 61 is coaxially fixed to one end of the push rod 62.

[0062] See also Figure 6 and Figure 7A telescopic rod 72 is horizontally provided between the push rod 62 and the traction rod 7. The axis of the telescopic rod 72 is perpendicular to the push rod 62. The telescopic rod 72 includes an outer rod 721 and an inner rod 722 that passes through the outer rod 721. The end of the outer rod 721 facing away from the inner rod 722 is fixed to the traction rod 7, and the end of the inner rod 722 facing away from the outer rod 721 faces the push rod 62. A first magnetic block 723 is fixed to the end of the inner rod 722 facing away from the outer rod 721. A stabilizing block 621 is fixed to the push rod 62 near the first magnetic block 723. The stabilizing block 621 has a stabilizing groove 622, the notch of which faces the telescopic rod 72. A second magnetic block 623 is embedded and fixed to the bottom of the stabilizing groove 622. The first magnetic block 723 is embedded in the stabilizing groove 622 and magnetically engages with the first stabilizing block 621. Furthermore, the notch of the stabilizing groove 622 is chamfered to form a guiding surface 624. In this embodiment, the first magnetic block 723 and the second magnetic block 623 are made of strong magnetic blocks.

[0063] A vertical pole 7221 is fixed vertically upward in the middle of the inner rod 722, and a push plate 8 is fixed on the lower side of the cross beam 3. The push plate 8 is arranged along the length direction of the mounting frame 2. The push plate 8 is located on the side of the vertical pole 7221 away from the traction rod 7. Both sides of the side surface of the push plate 8 close to the vertical pole 7221 in the length direction are chamfered to form a guiding slope 81.

[0064] It should be noted that the blades 252 of the three grilles 25 are connected to the same push rod 62 through the rotating shaft 253, the swing rod 254, the traction rod 7, and the telescopic rod 72. In the grille 25 located on the side of the blowing expansion 23, the width direction of its blades 252 is always perpendicular to the length direction of the mounting frame 2.

[0065] In actual operation, the electric cylinder 61 reciprocates to drive the push rod 62, which in turn drives the three telescopic rods 72 and the traction rod 7 to reciprocate, and drives the swing rod 254 and the blades 252 to swing, thereby synchronously changing the dust extraction direction of each dust extraction expansion 24. The telescopic rod 72 can adapt to the movement of the traction rod 7 along the width of the mounting frame 2 by extending and retracting, ensuring the normal operation of driving the blades 252.

[0066] When the crossbeam 3 moves directly above any grille 25, the tool holder 33 and push plate 8 move with the crossbeam 3. At this point, the guide slope 81 of the push plate 8 abuts the vertical rod 7221, pushing the vertical rod 7221 and the inner rod 722 away from the push rod 62, disengaging the first magnetic block 723 and the second magnetic block 623. Then, under the action of the two centering springs 71, the drawbar 7 is centered, and the blades 252 of the corresponding grille 25 are perpendicular to the drawbar 7. The suction direction of the dust flare 24 is directly toward the workpiece during processing, allowing the generated dust to be sucked away promptly.

[0067] When the push plate 8 is separated from the vertical rod 7221, the push rod 62 is continuously driven by the electric cylinder 61. When the second magnetic block 623 faces the first magnetic block 723, the second magnetic block 623 attracts the first magnetic block 723, and the inner rod 722 of the telescopic rod 72 moves toward the second magnetic block 623. Guided by the guiding surface 624, the first magnetic block 723 inserts into the stabilizing groove 622 and engages with the second magnetic block 623. At this point, the electric cylinder 61 and push rod 62 cooperate to continue driving the traction rod 7 and blades 252 of the grille 25 to reciprocate.

[0068] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A dust removal system for a gantry five-axis machining center, comprising a machining center (1) and a dust collecting device (4), wherein the machining center (1) comprises two parallel and spaced mounting frames (2), a crossbeam (3) slidably mounted on the two mounting frames (2), a machining space (11) being formed between the two mounting frames (2), and characterized in that: The inner sides of the two mounting frames (2) are respectively provided with a blowing flare (23) and a dust extraction flare (24), the blowing flare (23) and the dust extraction flare (24) being arranged opposite to each other, the dust extraction flare (24) being connected to the air extraction port of the dust collecting device (4) through a pipe, and the blowing flare (23) being connected to the air outlet of the dust collecting device (4) through a pipe; A grille (25) is provided on the inner side of the mounting frame (2) on one side of the dust extraction expansion opening (24), and the grille (25) covers the dust extraction expansion opening (24); The grille (25) includes a frame (251) and a plurality of blades (252) arranged inside the frame (251), each of the blades (252) is vertical, and both ends of each blade (252) are rotatably connected to the side edges of the frame (251), and the mounting frame (2) is also provided with a driving assembly (6) for driving all the blades (252) to rotate back and forth; A rotating shaft (253) is fixed to the upper end of each blade (252), each rotating shaft (253) is collinear with the rotation axis of the corresponding blade (252), and a swing rod (254) is vertically fixed to each rotating shaft (253); A traction rod (7) is provided at one end of the swing rod (254) away from the rotating shaft (253), and the traction rod (7) is arranged along the length direction of the mounting frame (2). One end of each swing rod (254) away from the corresponding rotating shaft (253) is hinged to the traction rod (7), and all the swing rods (254) are parallel to each other. The driving assembly (6) drives the traction rod (7) to reciprocate and drives all the blades (252) to rotate synchronously. The driving assembly (6) includes a driving member and a push rod (62), wherein the push rod (62) is arranged along the length direction of the traction rod (7), and the push rod (62) is slidably arranged on the mounting frame (2) along the length direction thereof, and the driving member is in transmission connection with the push rod (62) and drives the push rod (62) to slide back and forth; A telescopic rod (72) is provided between the push rod (62) and the traction rod (7) in the horizontal direction, one end of the telescopic rod (72) is fixed to the middle of the traction rod (7), and the other end of the telescopic rod (72) is fixed to the push rod (62); The dust extraction expansion openings (24) are arranged in a plurality of intervals on the corresponding mounting frame (2) along the length direction of the mounting frame (2); the grilles (25) correspond to the dust extraction expansion openings (24) one by one; the swing rod (254), the traction rod (7) and the telescopic rod (72) are all arranged corresponding to the grilles (25); and the end of each telescopic rod (72) facing away from the traction rod (7) is fixed to the push rod (62); Each swing rod (254) is parallel to the width direction of the corresponding blade (252); the telescopic rod (72) comprises an outer rod (721) and an inner rod (722) passing through the outer rod (721); the end of the outer rod (721) facing away from the inner rod (722) is fixed to the traction rod (7); the end of the inner rod (722) facing away from the outer rod (721) is fixed with a first magnetic block (723); the push rod (62) is fixed with a second magnetic block (623); the end of the inner rod (722) facing away from the outer rod (721) is fixed to the push rod (62) by magnetic attraction between the first magnetic block (723) and the second magnetic block (623); A vertical rod (7221) is fixed vertically upward in the middle of the inner rod (722), and a push plate (8) is fixed on the lower side of the crossbeam (3). The push plate (8) is arranged along the length direction of the mounting frame (2). The push plate (8) is located on the side of the vertical rod (7221) away from the traction rod (7). Both sides of the side of the push plate (8) close to the vertical rod (7221) in the length direction are chamfered to form a guide slope (81); When the push plate (8) moves along with the crossbeam (3), the guide inclined surface (81) abuts against the vertical rod (7221) and pushes the vertical rod (7221) and the inner rod (722) to move away from the push rod (62), and the first magnetic block (723) and the second magnetic block (623) are disengaged; Furthermore, both ends of the traction rod (7) are provided with centering springs (71), one end of each of the two centering springs (71) is fixed to the two ends of the traction rod (7), and the other ends of the two centering springs (71) are separated from each other and fixed to the mounting frame (2); When the traction rod (7) is centered, the swing rod (254) is perpendicular to the length direction of the mounting frame (2); A stabilizing block (621) is fixed on the push rod (62), the stabilizing block (621) faces one side of the telescopic rod (72), a stabilizing groove (622) is provided on the stabilizing block (621), the notch of the stabilizing groove (622) faces one side of the telescopic rod (72), the second magnetic block (623) is embedded in the bottom of the stabilizing groove (622) and is fixed to the stabilizing block (621), and the first magnetic block (723) is embedded in the stabilizing groove (622) and is magnetically engaged with the first stabilizing block (621); The notch of the stabilizing groove (622) is chamfered to form a guiding surface (624).

2. The dust removal system for a gantry five-axis machining center according to claim 1, characterized in that: An opening and closing door (21) and a blocking wall (22) are respectively provided on both sides of the mounting frame (2) in the longitudinal direction. The opening and closing door (21) and the blocking wall (22) respectively close the processing space (11) located on both sides of the mounting frame (2) in the longitudinal direction. The crossbeam (3) is provided with an accordion cover (51) on both sides of the mounting frame (2) in the longitudinal direction. The two accordion covers (51) close the upper side of the processing space (11), and the edges of the two accordion covers (51) that are away from each other are respectively fixed to the two ends of the mounting frame (2) in the longitudinal direction, and the edges of the two accordion covers (51) that are close to each other are fixedly connected to the crossbeam (3).

3. The dust removal system for a gantry five-axis machining center according to claim 1, characterized in that: A plurality of dust extraction expansion openings (24) are arranged at intervals on the inner side of the corresponding mounting frame (2) along the length direction of the mounting frame (2), each of the dust extraction expansion openings (24) is connected to a dust extraction pipe (44), the air extraction port of the dust collecting device (4) is connected to a dust extraction main pipe (43), each of the dust extraction pipes (44) is connected to the dust extraction main pipe (43), all the dust extraction pipes (44) are arranged at intervals in sequence at the connection points with the dust extraction main pipe (43), and the diameter of the dust extraction main pipe (43) shrinks in sections from one side of the dust collecting device (4) to the side away from the dust collecting device (4).

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