A protective cover for graphite numerical control machine tool tool magazine

Abstract

The application discloses a protective cover for a graphite numerical control machine tool tool magazine, a pushing assembly is arranged in an upper shell, a door is arranged at an opening of one end of a lower shell, a first fixed plate is arranged on the lower shell, a gap for storing the horizontally placed door is arranged between the first fixed plate and an upper top plate of the lower shell, air inlet holes are formed in the upper top plate of the lower shell, a second ventilation assembly is arranged in the lower shell, air outlet holes are formed in a lower bottom plate of the lower shell, the first ventilation assembly is arranged below the air outlet holes on the lower bottom plate of the lower shell, and the second ventilation assembly is connected with the first ventilation assembly through a driving assembly. The pushing assembly pushes the cutter out of the lower shell by pushing the door, meanwhile, the pushing assembly drives the second ventilation assembly to blow the dust in the lower shell to the position of the air outlet holes, the second ventilation assembly drives the first ventilation assembly to move through a driving mechanism, and the first ventilation assembly blows the dust in the lower shell, so that the graphite dust is prevented from being adsorbed on the cutter, and the cutter is protected.

Description

Technical Field

[0001] This invention belongs to the technical field of graphite processing equipment, specifically relating to a protective cover for a tool magazine of a graphite CNC machine tool. Background Technology

[0002] The tool magazine of a graphite CNC machine tool is a crucial functional component for tool storage and automatic tool exchange, and is an essential part of the machining center. When a specific tool is needed during machining, the tool magazine selects the appropriate tool through the control system and delivers it to the tool change position. Graphite materials are increasingly widely used in the mold-making industry. The processing of graphite materials generates a large amount of dust, which adheres to the tool holders, tool holder clamping mechanisms, and tool disc indexing mechanisms in the machine tool tool magazine. This severely affects the operational reliability of the tool magazine, causing equipment malfunctions and, in severe cases, damage to the equipment. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a protective cover for a graphite CNC machine tool tool magazine.

[0004] The technical solution adopted to solve the above technical problems is as follows: A support plate is slidably connected to the inner side of the upper top plate of the lower shell. A first motor for driving the turntable to rotate is set on the support plate. Cutters are evenly arranged in the circumferential direction at the bottom of the turntable. Upper shells are respectively set on both sides of the upper end of the lower shell. A pushing component is set inside the upper shell to push the support plate to slide horizontally along the inner side of the upper top plate of the shell. A baffle connected to the pushing component is set at the opening at one end of the lower shell. A first fixing plate that abuts against the pushing component is set on the lower shell. There is a gap between the first fixing plate and the upper top plate of the lower shell for storing the horizontally placed baffle. An air inlet is machined on the upper top plate of the lower shell. A second ventilation component located below the air inlet is set inside the lower shell. An air outlet is machined on the lower bottom plate of the lower shell. A first ventilation component located below the air outlet is set on the lower bottom plate of the lower shell. The second ventilation component is connected to the first ventilation component through a driving component.

[0005] Furthermore, the first ventilation component comprises: an outer ring on the lower base plate of the lower housing; a first connecting rod rotatably mounted on the bottom surface of the circular groove on the lower base plate of the lower housing; a first protrusion on the outer ring that slidably connects with the first groove on the first connecting rod; an iron block rotatably mounted on one end of the first connecting rod, and the other end contacting the circumferential sidewall of the circular groove; one end of the iron block magnetically connected to a magnetic block on the baffle, and the other end fixedly connected to one end of a spring; the other end of the spring fixedly connected to the lower base plate of the lower housing; and an arc-shaped connecting plate rotatably mounted on the outer ring in a uniform circumferential direction. A support plate is provided at the air outlet on the bottom plate. Baffles are evenly arranged around the circumference of the support plate. The baffles are rotatably connected to the bottom plate of the lower housing through a connecting plate. Multiple baffles are combined to form a circular baffle. The circular baffle is located inside the circumference of the outer ring. Multiple baffles are rotatably connected to one end of the arc-shaped connecting plate, and the other end of the arc-shaped connecting plate is rotatably connected to the outer ring. A first connecting shaft is provided on the support plate. The first connecting shaft is connected to the drive assembly through a first belt. First blades for blowing out dust from the lower housing are evenly arranged around the outer circumference of the first connecting shaft.

[0006] Furthermore, the air outlet is circular, and the diameter of the circular baffle is greater than or equal to the diameter of the air outlet.

[0007] Furthermore, the geometry of the wind deflector consists of a first circular arc and two second and third circular arcs passing through both ends of the first circular arc, with the bending directions of the second and third circular arcs being the same.

[0008] Furthermore, a slider is provided on the inner side of the upper top plate of the lower housing, and a first slide rail is machined on the support plate to slide and connect with the slider.

[0009] Furthermore, the second ventilation component is as follows: a second fixing plate is provided on the side plate of the lower housing, and fifth connecting shafts are evenly arranged on the second fixing plate. Each fifth connecting shaft has a second fan blade evenly arranged in the circumferential direction below the air inlet. The driving component is connected to one of the fifth connecting shafts through a fifth belt, and the other adjacent fifth connecting shafts are connected through a sixth belt. One of the fifth connecting shafts is connected to the driving component.

[0010] Furthermore, the drive assembly comprises: a connecting ring on the outer circumference of one of the fifth connecting shafts; a second protrusion slidably connected to the second slide groove on the horizontal slide rod on the connecting ring; a first fixing frame and a second fixing frame respectively on the second fixing plate; a vertical slide plate slidably connected to the second fixing frame in the vertical direction; a clamping plate on the vertical slide plate; the horizontal slide rod and the clamping plate slidably connected in the horizontal direction; one side of the clamping plate is fixedly connected to one end of the fifth connecting rod; the other end of the fifth connecting rod is rotatably connected to one end of the third connecting rod; and the other end of the third connecting rod... It is rotatably connected to the fourth link; a first pulley is provided on the bottom plate inside the lower housing, and a first ratchet is provided on the upper end of the first pulley through the sixth connecting shaft. The first pulley is connected to the seventh connecting shaft through the seventh belt. The seventh connecting shaft is connected to the first ventilation component. Pads are evenly arranged on the outer circumference of the seventh connecting shaft. An eccentric wheel is provided on the upper end of the seventh connecting shaft. A second ratchet is provided at the bottom of the eccentric wheel. The teeth on the inner circumference of the second ratchet mesh with the pawl, and the teeth on the outer circumference of the pawl mesh with the first ratchet for transmission. The top of the eccentric wheel is eccentrically rotatably connected to the fourth link.

[0011] Furthermore, the pushing assembly comprises: a second motor for driving one of the lead screws to rotate is provided on the lower housing; one lead screw is connected to the other lead screw via a fourth belt; each lead screw is threadedly connected to a support plate; each lead screw is connected to a second connecting shaft on the first support base via a second belt; a first bevel gear is provided at one end of the second connecting shaft; a second bevel gear meshing with the first bevel gear is provided at one end of the third connecting shaft on the second support base; the third connecting shaft is connected to a fourth connecting shaft on the third support base via a third belt; a spur gear is provided on the outer circumference of the fourth connecting shaft; a second slide rail is slidably connected to the top plate of the lower housing; a rack meshing with the spur gear is fixedly installed on the second slide rail; one end of the second slide rail is rotatably connected to one end of the second connecting rod; the other end of the second connecting rod is rotatably connected to the stop; a stop bar is rotatably connected to the second connecting rod; one end of the stop bar abuts against the first fixed plate.

[0012] This invention employs a pushing component that pushes the stop gate to push the cutting tool out of the lower housing. At the same time, the pushing component drives the second ventilation component to blow the dust in the lower housing out of the air outlet. The second ventilation component drives the first ventilation component to move through the drive mechanism. The first ventilation component blows the dust in the lower housing out, thus preventing graphite dust from adhering to the cutting tool and protecting the cutting tool. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of one embodiment of the protective cover for the tool magazine of a graphite CNC machine tool according to the present invention.

[0014] Figure 2 yes Figure 1 A structural diagram from another angle.

[0015] Figure 3 yes Figure 2 A structural diagram showing the removal of the blocking door 6 from another angle.

[0016] Figure 4 yes Figure 3 A schematic diagram of the structure of the middle support plate 8.

[0017] Figure 5 yes Figure 1 A schematic diagram of the structure with the lower shell 2 and upper shell 4 removed.

[0018] Figure 6 yes Figure 5 A structural diagram from another angle.

[0019] Figure 7 yes Figure 5 A schematic diagram of the structure of the first ventilation component 5.

[0020] Figure 8 yes Figure 7 A partial structural diagram.

[0021] Figure 9 yes Figure 8 A partial structural diagram.

[0022] Figure 10 yes Figure 8 A schematic diagram of the structure of the middle wind deflector 502.

[0023] Figure 11 yes Figure 5 A schematic diagram of the structure of the central driving component 10.

[0024] Figure 12 yes Figure 11 A magnified schematic diagram of the structure at point I in the middle.

[0025] Figure 13 yes Figure 5 A schematic diagram of the structure of the second ventilation component 11 and the drive component 12.

[0026] Figure 14 yes Figure 13 A schematic diagram of the structure of the drive component 12.

[0027] Figure 15 yes Figure 14 A partial structural diagram.

[0028] Figure 16 yes Figure 15 A schematic diagram of the structure of the seventh connecting shaft 1217.

[0029] Figure 17 yes Figure 15 A schematic diagram of the structure of the second ratchet 1216.

[0030] Figure 18 yes Figure 14 A schematic diagram of the structure of the horizontal sliding rod 1206.

[0031] Reference numerals: 1. First fixing plate; 2. Lower housing; 3. Air inlet; 4. Upper housing; 5. First ventilation assembly; 501. First belt; 502. Wind deflector; 503. Support plate; 504. Connecting plate; 505. Arc-shaped connecting plate; 506. Outer ring; 507. First connecting rod; 508. Magnetic block; 509. Iron block; 510. Spring; 511. First fan blade; 512. First connecting shaft; 513. First protrusion; 514. First slide 515. Groove; 6. Baffle; 7. Air outlet; 8. Support plate; 9. Slider; 10. Push assembly; 1001. First bevel gear; 1002. Second connecting shaft; 1003. Second belt; 1004. Second motor; 1005. Lead screw; 1006. Third connecting shaft; 1007. Second bevel gear; 1008. Third belt; 1009. Second slide rail; 1010. Spur gear; 1011. Fourth connecting shaft; 101 2. Rack; 1013. Second connecting rod; 1014. Stop bar; 1015. Fourth belt; 11. Second ventilation assembly; 1101. Fifth belt; 1102. Second fixing plate; 1103. Second fan blade; 1104. Fifth connecting shaft; 1105. Sixth belt; 12. Drive assembly; 1201. First fixing frame; 1202. Second fixing frame; 1203. Clamping plate; 1204. Connecting ring; 1205. Second protrusion; 120 6. Horizontal slide bar; 1207. Vertical slide bar; 1208. Third link; 1209. Fourth link; 1210. Eccentric wheel; 1211. Fifth link; 1212. First ratchet; 1213. Sixth connecting shaft; 1214. First pulley; 1215. Pawl; 1216. Second ratchet; 1217. Seventh connecting shaft; 1218. Seventh belt; 1219. Second slide groove; 13. Cutting tool; 14. Turntable; 15. First slide rail. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0033] like Figures 1 to 6 As shown, the protective cover for the tool magazine of the graphite CNC machine tool in this embodiment is composed of a first fixed plate 1, a lower housing 2, an air inlet 3, an upper housing 4, a first ventilation component 5, a baffle 6, an air outlet 7, a support plate 8, a slider 9, a pushing component 10, a second ventilation component 11, a driving component 12, a tool 13, a turntable 14, and a first slide rail 15.

[0034] A support plate 8 is slidably connected to the inner side of the upper top plate of the lower housing 2. A slider 9 is fixedly installed on the inner side of the upper top plate of the lower housing 2. A first slide rail 15 is machined on the support plate 8, and the first slide rail 15 is slidably connected to the slider 9. A first motor for driving the turntable 14 to rotate is fixedly installed on the support plate 8. Cutters 13 are evenly installed in the circumferential direction at the bottom of the turntable 14. An upper housing 4 is fixedly installed on both sides of the upper end of the lower housing 2. A pushing assembly 10 is installed inside the upper housing 4. The pushing assembly 10 pushes the support plate 8 to slide horizontally along the inner side of the upper top plate of the housing 2. A first fixing plate 1 is provided on the lower housing 2 to abut against the pushing assembly 10. There is a gap between the first fixing plate 1 and the upper top plate of the lower housing 2. The gap is used to store a horizontally placed door 6. A door 6 is installed at the opening at one end of the lower housing 2. The door 6 is connected to the pushing assembly 10. The pushing assembly 10 is used to push the door 6 to open, and the turntable 14 and cutters 13 at the bottom of the support plate 8 are removed from the lower housing 2. An air inlet 3 is machined on the top plate of the lower housing 2, which is used to allow air to enter the lower housing 2. A second ventilation component 11 located below the air inlet 3 is installed inside the lower housing 2. An air outlet 7 is machined on the bottom plate of the lower housing 2. A first ventilation component 5 located below the air outlet 7 is provided on the bottom plate of the lower housing 2. The second ventilation component 11 is connected to the first ventilation component 5 through a drive component 12. The second ventilation component 11 blows the dust in the lower housing 2 out of the air outlet 7, and the first ventilation component 5 blows the dust out of the lower housing 2.

[0035] like Figures 7 to 10As shown, the first ventilation assembly 5 is composed of a first belt 501, a baffle plate 502, a support plate 503, a connecting plate 504, an arc-shaped connecting plate 505, an outer ring 506, a first connecting rod 507, a magnet 508, an iron block 509, a spring 510, a first fan blade 511, a first connecting shaft 512, a first protrusion 513, a first sliding groove 514, and a circular groove 515. The first ventilation assembly 5 is characterized by: an outer ring 506 rotatably mounted on the lower base plate of the lower housing 2; a first connecting rod 507 rotatably mounted on the bottom surface of the circular groove 515 on the lower base plate of the lower housing 2; a first protrusion 513 fixedly mounted on the outer ring 506; and the first protrusion 513 slidably connected to the first sliding groove 514 on the first connecting rod 507; one end of the first connecting rod 507 rotates. An iron block 509 is installed. The other end of the first connecting rod 507 contacts the circumferential side wall of the circular groove 515. One end of the iron block 509 is magnetically connected to the magnetic block 508 on the baffle 6. The other end of the iron block 509 is fixedly connected to one end of the spring 510. The other end of the spring 510 is fixedly connected to the lower bottom plate of the lower housing 2. An arc-shaped connecting plate 505 is evenly rotated around the outer ring 506. A support plate 503 is fixedly installed on the air outlet 7 on the lower bottom plate of the lower housing 2. The air outlet 7 is circular. A wind deflector 502 is evenly rotated around the support plate 503. The geometric shape of the wind deflector 502 consists of a first arc and two second and third arcs passing through the two ends of the first arc. The bending direction of the second arc and the bending direction of the third arc are the same. The wind deflector 502 is rotatably connected to the lower base plate of the lower housing 2 via the connecting plate 504. Multiple wind deflectors 502 are combined to form a circular wind deflector, the diameter of which is greater than or equal to the diameter of the air outlet 7. The circular wind deflector is located inside the circumference of the outer ring 506. Multiple wind deflectors 502 are rotatably connected to one end of the arc-shaped connecting plate 505, and the other end of the arc-shaped connecting plate 505 is rotatably connected to the outer ring 506. A first connecting shaft 512 is installed on the support plate 503. First fan blades 511 are evenly installed on the outer circumference of the first connecting shaft 512. Multiple first fan blades 511 are used to blow out the dust inside the lower housing 2.

[0036] like Figures 11 to 12As shown, the driving assembly 10 is composed of a first bevel gear 1001, a second connecting shaft 1002, a second belt 1003, a second motor 1004, a lead screw 1005, a third connecting shaft 1006, a second bevel gear 1007, a third belt 1008, a second slide rail 1009, a spur gear 1010, a fourth connecting shaft 1011, a rack 1012, a second connecting rod 1013, a stop bar 1014, and a fourth belt 1015. The driving assembly 10 is further defined by: a second motor 1004 mounted on the lower housing 2 to drive one of the lead screws 1005 to rotate; one lead screw 1005 being connected to the other lead screw 1005 via the fourth belt 1015; each lead screw 1005 being threadedly connected to the support plate 8; and each lead screw 1005 being connected to the second connecting shaft 1002 on the first support base via the second belt 1003. The second connecting shaft 1002 is connected to a first bevel gear 1001 at one end. The third connecting shaft 1006 on the second support is provided with a second bevel gear 1007 that meshes with the first bevel gear 1001 at one end. The third connecting shaft 1006 is connected to the fourth connecting shaft 1011 on the third support via a third belt 1008. A spur gear 1010 is provided on the outer circumference of the fourth connecting shaft 1011. A second slide rail 1009 is slidably connected to the top plate of the lower housing 2. A rack 1012 that meshes with the spur gear 1010 is fixedly installed on the second slide rail 1009. One end of the second slide rail 1009 is rotatably connected to one end of the second connecting rod 1013. The other end of the second connecting rod 1013 is rotatably connected to the stop door 6. A stop rod 1014 is rotatably connected to the second connecting rod 1013. One end of the stop rod 1014 abuts against the first fixed plate 1.

[0037] like Figure 13 As shown, the second ventilation assembly 11 is composed of a fifth belt 1101, a second fixing plate 1102, a second fan blade 1103, a fifth connecting shaft 1104, and a sixth belt 1105. The second ventilation assembly 11 is as follows: a second fixing plate 1102 is fixedly installed on the side plate of the lower housing 2. Fifth connecting shafts 1104 are evenly installed on the second fixing plate 1102. Second fan blades 1103 located below the air inlet 3 are evenly installed on each fifth connecting shaft 1104 in the circumferential direction. The lead screw 1005 is connected to one of the fifth connecting shafts 1104 through the fifth belt 1101. Other adjacent fifth connecting shafts 1104 are connected to each other through the sixth belt 1105. One of the fifth connecting shafts 1104 is connected to the drive assembly 12.

[0038] like Figures 13 to 18As shown, the drive assembly 12 is composed of a first fixed frame 1201, a second fixed frame 1202, a clamping plate 1203, a connecting ring 1204, a second protrusion 1205, a horizontal slide bar 1206, a vertical slide plate 1207, a third connecting rod 1208, a fourth connecting rod 1209, an eccentric wheel 1210, a fifth connecting rod 1211, a first ratchet 1212, a sixth connecting shaft 1213, a first pulley 1214, a pawl 1215, a second ratchet 1216, a seventh connecting shaft 1217, a seventh belt 1218, and a second slide groove 1219. The drive assembly 12 is further characterized by a connecting ring 1204 mounted on the outer circumference of one of the fifth connecting shafts 1104, and a second protrusion fixedly mounted on the connecting ring 1204. 1205, the second protrusion 1205 is slidably connected to the second slide groove 1219 on the horizontal slide rod 1206. The first fixing frame 1201 and the second fixing frame 1202 are fixedly installed on the second fixing plate 1102 by threaded fasteners. The vertical slide plate 1207 is slidably connected to the second fixing frame 1202 in the vertical direction. The clamping plate 1203 is fixedly installed on the vertical slide plate 1207. The horizontal slide rod 1206 is slidably connected to the clamping plate 1203 in the horizontal direction. One side of the clamping plate 1203 is fixedly connected to one end of the fifth connecting rod 1211. The other end of the fifth connecting rod 1211 is rotatably connected to one end of the third connecting rod 1208. The other end of the third connecting rod 1208 is rotatably connected to the fourth connecting rod 1209.

[0039] A first pulley 1214 is installed on the inner bottom plate of the lower housing 2. A first ratchet 1212 is installed on the upper end of the first pulley 1214 via a sixth connecting shaft 1213. The first pulley 1214 is connected to the seventh connecting shaft 1217 via a seventh belt 1218. The seventh connecting shaft 1217 is connected to the first connecting shaft 512 via a first belt 501. Pads 1215 are evenly installed on the outer circumference of the seventh connecting shaft 1217. An eccentric wheel 1210 is installed on the upper end of the seventh connecting shaft 1217. A second ratchet 1216 is installed on the bottom of the eccentric wheel 1210. The teeth on the inner circumference of the second ratchet 1216 mesh with the pawl 1215. The teeth on the outer circumference of the pawl 1215 mesh with the first ratchet 1212. The top of the eccentric wheel 1210 is eccentrically rotatably connected to the fourth connecting rod 1209.

[0040] The working principle of this embodiment is as follows: (1) The tool 13 is moved out of the lower housing 2: the second motor 1004 is started, the second motor 1004 drives one of the lead screws 1005 to rotate, one of the lead screws 1005 drives the other lead screw 1005 to rotate through the fourth belt 1015, the support plate 8 slides horizontally on the two lead screws 1005, and the support plate 8 drives the tool 13 on the turntable 14 to move horizontally. The lead screw 1005 drives the second connecting shaft 1002 to rotate via the second belt 1003. The second connecting shaft 1002 sequentially drives the first bevel gear 1001, the second bevel gear 1007, the third connecting shaft 1006, the third belt 1008, the fourth connecting shaft 1011, and the spur gear 1010 to rotate. The spur gear 1010 drives the rack 1012 and the second slide rail 1009 to slide on the upper top plate of the lower housing 2. The second slide rail 1009 drives the stop gate 6 to move via the second connecting rod 1013. Since one end of the stop rod 1014 on the second connecting rod 1013 abuts against the first fixed plate 1, the stop gate 6 moves into the gap between the lower side of the first fixed plate 1 and the upper top plate of the lower housing 2.

[0041] (2) The second ventilation component 11 blows the dust in the housing 2: the lead screw 1005 drives the fifth connecting shaft 1104 to rotate through the fifth belt 1101, and the other adjacent fifth connecting shafts 1104 rotate through the sixth belt 1105. The second fan blade 1103 on each fifth connecting shaft 1104 rotates and blows the dust in the lower housing 2 to the air outlet 7.

[0042] (3) The second ventilation component 11 drives the first ventilation component 5: the fifth connecting shaft 110 drives the connecting ring 1204 to rotate, the second protrusion 1205 on the connecting ring 1204 is slidably connected to the second slide groove 1219 of the horizontal slide rod 1206, the horizontal slide rod 1206 slides horizontally in the clamping plate 1203 of the vertical slide plate 1207, the vertical slide plate 1207 slides vertically on the second fixed frame 1202, the clamping plate 1203 drives the fourth link 1209 to move in sequence through the fifth link 1211 and the third link 1208, the fourth link 1209 rotates eccentrically with the eccentric wheel 1210, and the eccentric wheel 1210 drives the second ratchet 121 When the second ratchet 1216 rotates counterclockwise, it engages with the pawl 1215 on the outer circumference of the seventh connecting shaft 1217, causing the seventh connecting shaft 1217 to rotate. The seventh connecting shaft 1217 then drives the first connecting shaft 512 to rotate via the first belt 501. When the second ratchet 1216 rotates clockwise, it drives the first ratchet 1212 to rotate. The first ratchet 1212 then sequentially drives the sixth connecting shaft 1213, the first pulley 1214, the seventh belt 1218, and the seventh connecting shaft 1217 to rotate. The seventh connecting shaft 1217 then drives the first connecting shaft 512 to rotate via the first belt 501.

[0043] (4) The first ventilation component 5 blows the dust out of the lower housing 2: During the opening process of the baffle 6, the magnetic block 508 and the iron block 509 are disconnected, the spring 510 is compressed, the iron block 509 drives the first connecting rod 507 to move, the first protrusion 513 of the outer ring 506 slides in the first groove 514 of the first connecting rod 507, driving the outer ring 506 to rotate, the outer ring 506 drives the baffle plate 502 to rotate through the arc-shaped connecting plate 505, all the baffle plates 502 are separated from the air outlet 7, the first connecting shaft 512 drives the first fan blade 511 to rotate, blowing the dust in the lower housing 2 out of the lower housing 2, avoiding the graphite dust from adhering to the tool, and can protect the tool.

[0044] The above description is merely a preferred embodiment of the present invention and is not intended to limit the scope of protection of the present invention.

Claims

1. A protective cover for a tool magazine of a graphite CNC machine tool, wherein a support plate (8) is slidably connected to the inner side of the upper top plate of the lower housing (2), and a first motor for driving a turntable (14) to rotate is provided on the support plate (8), and tools (13) are evenly arranged in the circumferential direction at the bottom of the turntable (14), characterized in that: The upper shell (4) is provided on both sides of the upper end of the lower shell (2). The upper shell (4) is provided with a push assembly (10) that pushes the support plate (8) to slide horizontally along the inner side of the upper top plate of the lower shell (2). A baffle (6) connected to the push assembly (10) is provided at the opening at one end of the lower shell (2). A first fixing plate (1) that abuts against the push assembly (10) is provided on the lower shell (2). There is a gap between the first fixing plate (1) and the upper top plate of the lower shell (2) for storing the horizontally placed baffle (6). An air inlet (3) is machined on the upper top plate of the lower shell (2). A second ventilation assembly (11) located below the air inlet (3) is provided inside the lower shell (2). An air outlet (7) is machined on the lower bottom plate of the lower shell (2). A first ventilation assembly (5) located below the air outlet (7) is provided on the lower bottom plate of the lower shell (2). The second ventilation assembly (11) is connected to the first ventilation assembly (5) through a drive assembly (12). The first ventilation component (5) is as follows: an outer ring (506) is provided on the bottom plate of the lower housing (2); a first connecting rod (507) is rotatably installed on the bottom surface of the circular groove (515) of the bottom plate of the lower housing (2); a first protrusion (513) is provided on the outer ring (506) and slidably connected to the first sliding groove (514) on the first connecting rod (507); an iron block (509) is rotatably installed on one end of the first connecting rod (507), and the other end contacts the circumferential side wall of the circular groove (515); one end of the iron block (509) is magnetically connected to the magnetic block (508) on the baffle (6), and the other end is fixedly connected to one end of the spring (510); the other end of the spring (510) is fixedly connected to the bottom plate of the lower housing (2); an arc-shaped connecting plate (505) is uniformly rotatably installed on the outer ring (506) in the circumferential direction; and the bottom plate of the lower housing (2) is... The air outlet (7) on the plate is provided with a support plate (503). The support plate (503) is uniformly provided with baffles (502) in the circumferential direction. The baffles (502) are rotatably connected to the bottom plate of the lower housing (2) through the connecting plate (504). Multiple baffles (502) are combined to form a circular baffle. The circular baffle is located inside the circumference of the outer ring (506). Multiple baffles (502) are rotatably connected to one end of the arc-shaped connecting plate (505). The other end of the arc-shaped connecting plate (505) is rotatably connected to the outer ring (506). The support plate (503) is provided with a first connecting shaft (512). The first connecting shaft (512) is connected to the drive assembly (12) through the first belt (501). The outer circumference of the first connecting shaft (512) is uniformly provided with first fan blades (511) for blowing out the dust in the lower housing (2).

2. The protective cover for graphite CNC machine tool magazine according to claim 1, characterized in that: The air outlet (7) is circular, and the diameter of the circular baffle is greater than or equal to the diameter of the air outlet (7).

3. The protective cover for graphite CNC machine tool magazine according to claim 1, characterized in that: The geometric shape of the wind deflector (502) consists of a first circular arc and two second and third circular arcs passing through the two ends of the first circular arc. The bending direction of the second circular arc is the same as that of the third circular arc.

4. The protective cover for graphite CNC machine tool magazine according to claim 1, characterized in that: The lower housing (2) has a slider (9) on the inner side of the top plate, and the support plate (8) has a first slide rail (15) that is slidably connected to the slider (9).

5. The protective cover for a graphite CNC machine tool tool magazine according to claim 1, characterized in that, The second ventilation component (11) is as follows: a second fixing plate (1102) is provided on the side plate of the lower housing (2), and a fifth connecting shaft (1104) is uniformly provided on the second fixing plate (1102). A second fan blade (1103) located below the air inlet (3) is uniformly provided on each fifth connecting shaft (1104) in the circumferential direction. The push component (10) is connected to one of the fifth connecting shafts (1104) through the fifth belt (1101). Other adjacent fifth connecting shafts (1104) are connected to each other through the sixth belt (1105). One of the fifth connecting shafts (1104) is connected to the drive component (12).

6. The protective cover for a graphite CNC machine tool magazine according to claim 5, characterized in that, The drive assembly (12) comprises: a connecting ring (1204) on the outer circumference of a fifth connecting shaft (1104), a second protrusion (1205) slidably connected to a second slide groove (1219) on a horizontal slide rod (1206) on the connecting ring (1204), and a first fixing frame (1201) and a second fixing frame (1202) respectively on a second fixing plate (1102), the second fixing frame (1202) being slidably connected in the vertical direction. A vertical slide plate (1207) is attached, and a clamping plate (1203) is provided on the vertical slide plate (1207). A horizontal slide bar (1206) is slidably connected to the clamping plate (1203) in the horizontal direction. One side of the clamping plate (1203) is fixedly connected to one end of the fifth link (1211), and the other end of the fifth link (1211) is rotatably connected to one end of the third link (1208). The other end of the third link (1208) is rotatably connected to the fourth link (1209). A first pulley (1214) is provided on the inner bottom plate of the lower housing (2). A first ratchet (1212) is provided on the upper end of the first pulley (1214) through the sixth connecting shaft (1213). The first pulley (1214) is connected to the seventh connecting shaft (1217) through the seventh belt (1218). The seventh connecting shaft (1217) is connected to the first ventilation assembly (5). Pawls (1215) are evenly provided on the outer circumference of the seventh connecting shaft (1217). An eccentric wheel (1210) is provided on the upper end of the seventh connecting shaft (1217). A second ratchet (1216) is provided at the bottom of the eccentric wheel (1210). The teeth on the inner circumference of the second ratchet (1216) mesh with the pawl (1215). The teeth on the outer circumference of the pawl (1215) mesh with the first ratchet (1212) for transmission. The top of the eccentric wheel (1210) is eccentrically connected to the fourth connecting rod (1209).

7. The protective cover for graphite CNC machine tool magazine according to claim 1, characterized in that, The pushing assembly (10) is as follows: a second motor (1004) is provided on the lower housing (2) to drive one of the lead screws (1005) to rotate. One of the lead screws (1005) is connected to the other lead screw (1005) through a fourth belt (1015). Each lead screw (1005) is threadedly connected to the support plate (8). Each lead screw (1005) is connected to the second connecting shaft (1002) on the first support base through a second belt (1003). A first bevel gear (1001) is provided at one end of the second connecting shaft (1002). A second bevel gear (1007) that meshes with the first bevel gear (1001) is provided at one end of the third connecting shaft (1006) on the second support base. The third connecting shaft (1006) is connected to the fourth connecting shaft (1011) on the third support seat via the third belt (1008). The fourth connecting shaft (1011) has a spur gear (1010) on its outer circumference. The second slide rail (1009) is slidably connected to the top plate of the lower housing (2). The rack (1012) that meshes with the spur gear (1010) is fixedly installed on the second slide rail (1009). One end of the second slide rail (1009) is rotatably connected to one end of the second connecting rod (1013). The other end of the second connecting rod (1013) is rotatably connected to the stop door (6). The stop rod (1014) is rotatably connected to the second connecting rod (1013). One end of the stop rod (1014) abuts against the first fixed plate (1).

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