A gantry type vertical machining center

Abstract

The application relates to the technical field of machining, and discloses a door type vertical machining center, which comprises a partition plate, a vane wheel movably sleeved on the partition plate through shaft hole cooperation at the top of the partition plate away from the shell, a driven gear fixedly installed at the bottom of the vane wheel below the partition plate, a transmission gear engaged with the driven gear, a driving gear engaged with the transmission gear, an installation support fixedly installed at the bottom of the air pump shell through welding, an air nozzle fixedly sleeved at one end of the installation support through shaft hole cooperation, and an inner cavity of the air pump shell communicated with one end of the air nozzle through a hose, one end of the air nozzle communicated with the inner cavity of the air pump shell through the hose, so that the gas can quickly pass through the hose and be sprayed out of the air nozzle, thereby cleaning the cutting chips generated by the cutting tool, avoiding the chips staying on the surface of the workpiece to affect the cutting machining and thus causing the machining precision to decrease and the surface of the workpiece to be damaged, and improving the stability of the device during operation.

Description

Technical Field

[0001] This application relates to the field of machining technology, and in particular to a gantry vertical machining center. Background Technology

[0002] With the development of technology, traditional milling machines have been gradually replaced by more comprehensive machining centers, which can realize multiple machining modes and achieve machining of workpieces with more complex external surface structures through multi-axis communication. They also have the function of automatic tool changing of various specifications. Since a large amount of flying debris is generated during the machining process, traditional machining centers close the door during the machining process. The structure of the door is relatively simple, consisting of a sliding door panel, a slide rail, and a handle. During use, the operator pushes the sliding door panel along the slide rail by holding the handle, thereby achieving the closing effect. This type of door has the advantages of simple structure, convenient use, and low cost, and is currently the most widely used type of gantry vertical machining center.

[0003] While existing gantry vertical machining centers possess many advantages, they still have certain limitations in practical use. In case of an emergency, the operator must press the emergency stop button to ensure the spindle stops before opening the closed door to ensure safety, which reduces the speed of handling emergencies. In addition, to ensure the stability of the door's movement direction, grooved guide rails are installed. These guide rails can cause cutting debris to accumulate inside the guide rails during cleaning, resulting in incomplete cleaning. In response, this application proposes a gantry vertical machining center to solve the aforementioned problems. Summary of the Invention

[0004] This application adopts the following technical solution: a gantry vertical machining center, including a base, a sealing device is fixedly installed on the top outer side of the base by bolt connection, a workpiece clamping plate is fixedly installed on the top of the base inside the cavity of the sealing device by bolt connection, a top plate is fixedly installed on the top of the sealing device by bolt connection, longitudinal slide rails are fixedly installed on both sides of the inner wall of the sealing device by bolt connection, a longitudinal travel mechanism is provided on the outer surface of the longitudinal slide rail near the top by sliding fit, a left and right travel mechanism is provided at the bottom of the longitudinal travel mechanism by sliding fit and guide rail limiting, a power unit I is fixedly installed on one side of the outer surface of the left and right travel mechanism by bolt connection, an adjusting screw is fixedly installed on one end of the output shaft of the power unit I by bolt connection, a travel block is sleeved on the outer surface of the adjusting screw by thread fit, and a cutting device is fixedly installed on the bottom of the travel block by bolt connection.

[0005] Furthermore, the sealing device includes a sealing plate. The front of the sealing plate is integrally cast with a door. The top of the door is provided with a stroke groove I by milling. An airflow detector is fixedly installed on the front of the sealing plate near the top by welding. An air inlet I is provided on one side of the airflow detector near both ends by drilling. An upper closing device is movably installed inside the stroke groove I by telescopic cooperation. A lower closing device is movably installed on the back of the upper closing device by sliding cooperation.

[0006] Furthermore, the upper closing device includes an upper closing plate. The back of the upper closing plate is integrally cast and has a stroke groove II. The lower closing device is movably installed inside the stroke groove II through a sliding fit. A limit groove is formed on the front of the upper closing plate near the bottom. A stroke plate is movably installed inside the limit groove through a telescopic fit. A handle is movably fitted on the front of the stroke plate near the middle through a shaft hole fit. Stroke holes are drilled on both sides of the handle on the front of the stroke plate. Stroke seats are movably installed inside the stroke holes through a telescopic fit. An air inlet II is drilled on the top of the stroke seat. The stroke seat penetrates the upper closing plate and connects the air inlet II with the stroke groove II.

[0007] Furthermore, the lower closing device includes a lower closing plate, on which a lower base plate is fixedly installed by welding near the bottom of the front side of the lower closing plate. A mating hole is drilled near the top of the front side of the lower closing plate by drilling. An air guide hole is drilled at the top of the lower closing plate by drilling. The air guide hole is connected to the mating hole.

[0008] Furthermore, the axis of the mating hole and the axis of the travel hole are located on the same vertical plane.

[0009] Furthermore, the cutting device includes a housing, and a power unit II is fixedly sleeved inside the housing near the top. One end of the output shaft of the power unit II is fixedly installed with a spindle by bolt connection. One end of the spindle is fixedly installed with a cutting tool on the outside of the housing. A drive gear is fixedly sleeved on the outer surface of the spindle near the bottom by shaft hole engagement. An air pump device is fixedly installed on one side of the outer surface of the housing near the bottom by welding.

[0010] Furthermore, the air pump device includes an air pump housing, which is fixedly installed on one side of the outer surface of the housing by welding. A partition plate is fixedly installed on the inner cavity of the air pump housing near the bottom by welding. A transmission gear is movably sleeved on the bottom of the partition plate near the housing through a shaft hole. An impeller is movably sleeved on the top of the partition plate away from the housing through a shaft hole. A driven gear is fixedly installed on the bottom of the impeller below the partition plate. The driven gear meshes with the transmission gear, and the transmission gear meshes with the driving gear. A mounting bracket is fixedly installed on the bottom of the air pump housing by welding. An air nozzle is fixedly sleeved on one end of the mounting bracket through a shaft hole. One end of the air nozzle is connected to the inner cavity of the air pump housing through a hose.

[0011] Furthermore, flexible hoses are provided on both sides of the outer surface of the air pump housing near the top, and the inner cavity of the air pump housing is connected to the air inlet I through the flexible hoses.

[0012] Furthermore, the airflow detector establishes a data connection with the signal receiving module of the power unit II through the data signal transmitted by the signal transmitting module.

[0013] This application has the following beneficial effects.

[0014] 1. By meshing the driven gear with the transmission gear, and the transmission gear with the driving gear, the device operates such that when the power unit II drives the main shaft to rotate, it simultaneously drives the impeller to rotate, thereby causing airflow inside the air pump housing. At this time, one end of the air nozzle is connected to the inner cavity of the air pump housing through a hose, allowing the gas to quickly pass through the hose and be ejected from the air nozzle, thus cleaning up the chips generated by the cutting tool. This prevents chips from remaining on the surface of the workpiece and affecting the cutting process, thus avoiding problems such as reduced machining accuracy and damage to the workpiece surface, and improving the stability of the device during operation.

[0015] 2. The airflow inside the air pump housing is driven by the impeller and discharged from the nozzle. At this time, the internal air pressure of the air pump housing decreases. External gas needs to enter the air pump housing to balance the pressure. Flexible hoses are installed on both sides of the outer surface of the air pump housing near the top, and the inner cavity of the air pump housing is connected to the air inlet I through these hoses. This allows external gas to enter the interior of the air pump housing through the stroke groove II and the air inlet I. If the upper and lower closing devices are closed at this time, the bottom of the lower closing plate contacts the top of the base, blocking the air guide hole and preventing external gas from entering the interior of the air guide hole. The axis of the mating hole and the axis of the stroke hole are located on the same vertical plane. After the upper and lower closing devices are closed, the mating hole located on the front of the lower closing plate near the top is in a state corresponding to the stroke hole. Under the action of low pressure and the small diameter of the air inlet II, the stroke seat is displaced and inserted into the interior of the mating hole, thereby locking the lower closing device. At the same time, the air guide hole will be attracted to the top of the base under the action of negative pressure, making the upper and lower closing devices difficult to open. This prevents the upper and lower closing devices from being accidentally opened during normal operation of the device, thus avoiding accidents and improving the safety performance of the device.

[0016] 3. In an emergency, the stroke plate can be pulled out of the limit groove by pulling the handle, and the stroke seat will be pulled out of the mating hole. At this time, the upper and lower closing devices will be locked in contact, making them openable. After the upper and lower closing devices are opened, the lower closing plate will block one end of the air inlet I, preventing airflow from entering the air pump housing. As a result, the airflow detector will not detect the airflow. The airflow detector will then establish a data connection with the signal receiving module of the power unit II through the signal transmitting module, causing the power unit II to stop. This achieves the effect of emergency braking, ensuring that the device can stop immediately after the operator opens the upper and lower closing devices in an emergency, eliminating the need to press the emergency button, improving the speed of emergency response and reducing operational risks. Attached Figure Description

[0017] The accompanying drawings, which form part of this specification, illustrate embodiments disclosed in this application and, together with the specification, serve to explain the principles disclosed in this application.

[0018] This disclosure will become clearer with reference to the accompanying drawings and the following detailed description, wherein:

[0019] Figure 1 This is a schematic diagram of the structure of the present invention;

[0020] Figure 2 This is a front view schematic diagram of the structure of the present invention;

[0021] Figure 3 The structure of this invention Figure 2 Schematic diagram of cross section in the middle AA direction;

[0022] Figure 4 This is a schematic diagram of the structural sealing device of the present invention;

[0023] Figure 5 This is a schematic diagram of the rear side of the structural sealing device of the present invention;

[0024] Figure 6 This is a front view of the structural sealing device of the present invention;

[0025] Figure 7 The structure of this invention Figure 6 Schematic diagram of cross section in the middle BB direction;

[0026] Figure 8 This is a schematic diagram of the main structure of the present invention;

[0027] Figure 9 This is a schematic diagram of the closure device in the structure of the present invention;

[0028] Figure 10 This is a front view schematic diagram of the closure device in the structure of the present invention;

[0029] Figure 11 The structure of this invention Figure 10 Schematic diagram of cross-section in the CC direction;

[0030] Figure 12 The structure of this invention Figure 11 Enlarged view of point D;

[0031] Figure 13 This is a schematic diagram of the closing device under the structure of the present invention;

[0032] Figure 14 This is a schematic diagram of the closed front view of the structure of the present invention;

[0033] Figure 15 The structure of this invention Figure 14 Schematic diagram of cross section in the middle EE direction;

[0034] Figure 16 This is a schematic diagram of the cutting device of the present invention;

[0035] Figure 17 This is a front view schematic diagram of the cutting device of the present invention;

[0036] Figure 18 The structure of this invention Figure 17 Schematic diagram of cross-section in the middle FF direction;

[0037] Figure 19This is a schematic diagram of the air pump device of the present invention.

[0038] In the diagram: 1. Base; 2. Sealing device; 21. Sealing plate; 22. Door; 23. Stroke groove I; 24. Airflow detector; 25. Air inlet I; 26. Upper closing device; 261. Upper closing plate; 262. Stroke groove II; 263. Limiting groove; 264. Stroke plate; 265. Handle; 266. Stroke hole; 267. Stroke seat; 268. Air inlet II; 27. Lower closing device; 271. Lower closing plate; 272. Lower base plate; 273. Mating hole; 274. Air guide hole; 3. Workpiece clamp. 1. Plate; 2. Top plate; 3. Longitudinal slide rail; 4. Longitudinal travel mechanism; 5. Left and right travel mechanism; 6. Power machine I; 7. Adjusting screw; 8. Travel block; 9. Cutting device; 10. Housing; 112. Power machine II; 113. Main shaft; 114. Cutting tool; 115. Drive gear; 116. Air pump device; 1161. Air pump housing; 1162. Partition plate; 1163. Transmission gear; 1164. Impeller; 1165. Driven gear; 1166. Mounting bracket; 1167. Air nozzle. Detailed Implementation

[0039] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0040] A type of gantry vertical machining center, please refer to Figures 1-3 The system includes a base 1, a sealing device 2 fixedly installed on the top outer side of the base 1 by bolt connection, a workpiece clamping plate 3 fixedly installed on the top of the base 1 inside the cavity of the sealing device 2 by bolt connection, a top plate 4 fixedly installed on the top of the sealing device 2 by bolt connection, longitudinal slide rails 5 fixedly installed on both sides of the inner wall of the sealing device 2 by bolt connection, a longitudinal travel mechanism 6 set on the outer surface of the longitudinal slide rail 5 near the top by sliding fit, a left and right travel mechanism 7 set at the bottom of the longitudinal travel mechanism 6 by sliding fit and guide rail limit, a power unit I 8 fixedly installed on one side of the outer surface of the left and right travel mechanism 7 by bolt connection, an adjusting screw 9 fixedly installed at one end of the output shaft of the power unit I 8 by bolt connection, a travel block 10 sleeved on the outer surface of the adjusting screw 9 by thread fit, and a cutting device 11 fixedly installed at the bottom of the travel block 10 by bolt connection.

[0041] Please refer to Figures 4-8The sealing device 2 includes a sealing plate 21. The front of the sealing plate 21 is provided with a door 22 by integral casting. The top of the door 22 is provided with a stroke groove I 23 by milling. An airflow detector 24 is fixedly installed on the front of the sealing plate 21 near the top by welding. An air inlet I 25 is provided on one side of the airflow detector 24 near both ends by drilling. An upper closing device 26 is movably installed inside the stroke groove I 23 by telescopic cooperation. A lower closing device 27 is movably installed on the back of the upper closing device 26 by sliding cooperation.

[0042] Please refer to Figures 9-12 The upper closing device 26 includes an upper closing plate 261. The back of the upper closing plate 261 is integrally cast and has a stroke groove II 262. The lower closing device 27 is movably installed inside the stroke groove II 262 through a sliding fit. The upper closing plate 261 has a limit groove 263 near the bottom on the front. The stroke plate 264 is movably installed inside the limit groove 263 through a telescopic fit. The stroke plate 264 has a handle 265 movably fitted near the middle on the front through a shaft hole fit. The stroke plate 264 has stroke holes 266 on both sides of the handle 265 on the front. The stroke holes 266 are movably installed inside the stroke holes 266 through a telescopic fit. The top of the stroke seat 267 has an air inlet II 268 drilled through it. The stroke seat 267 passes through the upper closing plate 261 and connects the air inlet II 268 with the stroke groove II 262.

[0043] Please refer to Figures 13-15 The lower closing device 27 includes a lower closing plate 271. A lower base plate 272 is fixedly installed on the front of the lower closing plate 271 near the bottom by welding. A mating hole 273 is drilled on the front of the lower closing plate 271 near the top by drilling. A vent hole 274 is drilled on the top of the lower closing plate 271 by drilling. The vent hole 274 is connected to the mating hole 273.

[0044] Please refer to Figures 9-15 The axis of the mating hole 273 and the axis of the stroke hole 266 are located on the same vertical plane.

[0045] Please refer to Figures 16-18The cutting device 11 includes a housing 111. A power unit II 112 is fixedly mounted inside the housing 111 near the top. A main shaft 113 is fixedly mounted at one end of the output shaft of the power unit II 112 by bolt connection. A cutting tool 114 is fixedly mounted at one end of the main shaft 113 on the outside of the housing 111. A drive gear 115 is fixedly mounted on the outer surface of the main shaft 113 near the bottom by shaft hole engagement. An air pump device 116 is fixedly mounted on one side of the outer surface of the housing 111 near the bottom by welding.

[0046] Please refer to Figures 18-19 The air pump device 116 includes an air pump housing 1161, which is fixedly installed on one side of its outer surface by welding. A partition plate 1162 is fixedly installed on the inner cavity of the air pump housing 1161 near its bottom by welding. A transmission gear 1163 is movably sleeved on the bottom of the partition plate 1162 near the housing 111 via a shaft hole. An impeller 1164 is movably sleeved on the top of the partition plate 1162 away from the housing 111 via a shaft hole. A driven gear 1165 is fixedly installed at the bottom of the impeller 1164 below the partition plate 1162. The driven gear 1165 meshes with the transmission gear 1163, and the transmission gear 1163 meshes with the driving gear 115. A mounting bracket 1166 is fixedly installed at the bottom of the air pump housing 1161 by welding. An air nozzle 1167 is fixedly sleeved at one end of the mounting bracket 1166 through a shaft hole. One end of the air nozzle 1167 is connected to the inner cavity of the air pump housing 1161 through a hose.

[0047] Please refer to Figure 5 and Figures 18-19 The air pump housing 1161 has flexible hoses on both sides near the top of its outer surface, and the inner cavity of the air pump housing 1161 is connected to the air inlet I25 through these flexible hoses.

[0048] Please refer to Figure 5 and Figures 16-18 As shown in the figure, the airflow detector 24 establishes a data connection with the signal receiving module of the power unit II 112 through the data signal transmitted by the signal transmitting module.

[0049] In this device, the driven gear 1165 meshes with the transmission gear 1163, and the transmission gear 1163 meshes with the driving gear 115. When the device is running, the power unit II 112 drives the main shaft 113 to rotate, and in the process, it synchronously drives the impeller 1164 to rotate, thereby causing the airflow inside the air pump housing 1161 to flow. At this time, one end of the air nozzle 1167 is connected to the inner cavity of the air pump housing 1161 through a hose, so that the gas can quickly pass through the hose and be ejected from the air nozzle 1167, thereby cleaning the chips generated by the cutting tool 114. This prevents the chips from remaining on the surface of the workpiece and affecting the cutting process, thus avoiding the problems of reduced machining accuracy and damage to the workpiece surface, and improving the stability of the device during operation.

[0050] As the airflow inside the air pump housing 1161 is driven by the impeller 1164 and discharged from the air nozzle 1167, the internal air pressure of the air pump housing 1161 decreases. External gas needs to enter the air pump housing 1161 to balance the pressure. Flexible hoses are installed on both sides of the outer surface of the air pump housing 1161 near the top, and the inner cavity of the air pump housing 1161 is connected to the air inlet I 25 through these hoses. This allows external gas to enter the air pump housing 1161 through the stroke groove II 262 and the air inlet I 25. If the upper closing device 26 and the lower closing device 27 are closed at this time, the bottom of the lower closing plate 271 contacts the top of the base 1, blocking the air guide hole 274, preventing external gas from entering the air guide hole 274. Inside the device, since the axis of the mating hole 273 and the axis of the stroke hole 266 are located on the same vertical plane, after the upper closing device 26 and the lower closing device 27 are closed, the mating hole 273 located on the front of the lower closing plate 271 near the top is in a state corresponding to the stroke hole 266. Under the action of low pressure and the small diameter of the air inlet hole II 268, the stroke seat 267 is displaced and inserted into the interior of the mating hole 273, thereby locking the lower closing device 27. At the same time, the air guide hole 274 will be adsorbed on the top of the base 1 under the action of negative pressure, so that the upper closing device 26 and the lower closing device 27 are in a state that is difficult to open. This prevents the upper closing device 26 and the lower closing device 27 from being accidentally opened during the normal operation of the device, thereby improving the safety performance of the device.

[0051] In an emergency, by pulling handle 265, the travel plate 264 can be pulled out from inside the limit groove 263, and the travel seat 267 can be pulled out from inside the mating hole 273. At this time, the upper closing device 26 and the lower closing device 27 are locked in contact, so that the upper closing device 26 and the lower closing device 27 are in an openable state. After the upper closing device 26 and the lower closing device 27 are opened, the lower closing plate 271 will block one end of the air inlet I 25, so that the airflow cannot enter the air pump housing 1161 from the outside. As a result, the airflow detector 24 cannot detect the airflow. Therefore, the data signal transmitted by the airflow detector 24 through the signal transmission module establishes a data connection with the signal receiving module of the power unit II 112, so that the power unit II 112 stops. This achieves the effect of emergency braking, ensuring that the device can stop immediately after the operator opens the upper closing device 26 and the lower closing device 27 in an emergency, without needing to press the emergency button. This improves the speed of handling in an emergency and reduces the operational risk.

[0052] The method of using this invention is as follows:

[0053] During operation, the power unit II 112 drives the main shaft 113 to rotate, and simultaneously drives the impeller 1164 to rotate, thereby causing airflow inside the air pump housing 1161. The gas can quickly pass through the hose and be ejected from the nozzle 1167, thus cleaning up the debris generated by the cutting tool 114. The airflow inside the air pump housing 1161 is driven by the impeller 1164 and discharged from the nozzle 1167. At this time, the internal air pressure of the air pump housing 1161 decreases, and external gas needs to enter the internal air pump housing 1161 to balance the pressure. External gas enters the internal air pump housing 1161 through the stroke groove II 262 and the air inlet I 25. If the upper closing device 26 and the lower closing device 27 are closed at this time, the bottom of the lower closing plate 271 contacts the top of the base 1, causing the air guide hole 274 to be blocked, and external gas cannot enter the air guide hole 274. Inside 4, since the axis of the mating hole 273 and the axis of the stroke hole 266 are located on the same vertical plane, after the upper closing device 26 and the lower closing device 27 are closed, the mating hole 273 located on the front of the lower closing plate 271 near the top is in a state corresponding to the stroke hole 266. Under the action of low pressure and the small diameter of the air inlet hole II 268, the stroke seat 267 is displaced and inserted into the interior of the mating hole 273, thereby locking the lower closing device 27. At the same time, the air guide hole 274 will be adsorbed on the top of the base 1 under the action of negative pressure, making the upper closing device 26 and the lower closing device 27 difficult to open. In addition, since the lower closing device 27 can be fixed by negative pressure, it is no longer necessary to open a mating groove corresponding to the lower closing device 27 on the top of the base 1. This prevents the problem of debris falling into the mating groove and being difficult to clean when cleaning debris inside the base 1, thus improving the practicality of the device.

[0054] In an emergency, the stroke plate 264 can be pulled out from the limit groove 263 by pulling the handle 265, and the stroke seat 267 will be pulled out from the mating hole 273. At this time, the upper closing device 26 and the lower closing device 27 will be locked in contact, so that the upper closing device 26 and the lower closing device 27 are in an openable state. After the upper closing device 26 and the lower closing device 27 are opened, the lower closing plate 271 will block one end of the air inlet I 25, so that the airflow cannot enter the air pump housing 1161 from the outside. As a result, the airflow detector 24 will not detect the airflow. Thus, the data signal transmitted by the airflow detector 24 through the signal transmission module establishes a data connection with the signal receiving module of the power unit II 112, so that the power unit II 112 stops, thereby achieving the effect of emergency braking. This ensures that the device can stop immediately after the operator opens the upper closing device 26 and the lower closing device 27 in an emergency.

Claims

1. A gantry-type vertical machining center, characterized in that, Includes a base (1), a sealing device (2) is fixedly installed on the top outer side of the base (1), a workpiece clamp (3) is fixedly installed on the top of the base (1) at the position inside the cavity of the sealing device (2), a top plate (4) is fixedly installed on the top of the sealing device (2), longitudinal slide rails (5) are fixedly installed on both sides of the inner wall of the sealing device (2), a longitudinal stroke mechanism (6) is provided on the outer surface of the longitudinal slide rail (5) near the top, a left and right stroke mechanism (7) is provided at the bottom of the longitudinal stroke mechanism (6), a power machine I (8) is fixedly installed on one side of the outer surface of the left and right stroke mechanism (7), an adjusting screw (9) is fixedly installed at one end of the output shaft of the power machine I (8), a stroke block (10) is sleeved on the outer surface of the adjusting screw (9), and a cutting device (11) is fixedly installed at the bottom of the stroke block (10). The sealing device (2) includes a sealing plate (21), a door (22) is provided on the front of the sealing plate (21), and a stroke groove I (23) is provided on the top of the door (22) by milling. An airflow detector (24) is fixedly installed on the front of the sealing plate (21) near the top. An air inlet I (25) is provided on one side of the airflow detector (24) near both ends. An upper closing device (26) is movably installed inside the stroke groove I (23), and a lower closing device (27) is movably installed on the back of the upper closing device (26). The upper closing device (26) includes an upper closing plate (261). A stroke groove II (262) is provided on the back of the upper closing plate (261). A lower closing device (27) is movably installed inside the stroke groove II (262). A limit groove (263) is provided on the front of the upper closing plate (261) near the bottom. A stroke plate (264) is movably installed inside the limit groove (263). A handle (265) is movably sleeved on the front of the stroke plate (264) near the middle. Stroke holes (266) are provided on both sides of the handle (265) on the front of the stroke plate (264). A stroke seat (267) is movably installed inside the stroke hole (266). An air inlet II (268) is provided on the top of the stroke seat (267). The stroke seat (267) passes through the upper closing plate (261) and connects the air inlet II (268) with the stroke groove II (262). The lower closing device (27) includes a lower closing plate (271), a lower bottom plate (272) is fixedly installed on the front of the lower closing plate (271) near the bottom, a mating hole (273) is on the front of the lower closing plate (271) near the top, and a vent hole (274) is on the top of the lower closing plate (271), which is connected to the mating hole (273). The cutting device (11) includes a housing (111), a power unit II (112) is fixedly sleeved inside the housing (111) near the top, a main shaft (113) is fixedly installed at one end of the output shaft of the power unit II (112), a cutting tool (114) is fixedly installed at one end of the main shaft (113) outside the housing (111), a drive gear (115) is fixedly sleeved on the outer surface of the main shaft (113) near the bottom, and an air pump device (116) is fixedly installed on one side of the outer surface of the housing (111) near the bottom. The air pump device (116) includes an air pump housing (1161), which is fixedly installed on one side of the outer surface of the housing (111). A partition plate (1162) is fixedly installed in the inner cavity of the air pump housing (1161) near the bottom. A transmission gear (1163) is movably sleeved on the bottom of the partition plate (1162) near the housing (111), and an impeller (1164) is movably sleeved on the top of the partition plate (1162) away from the housing (111). 4) A passive gear (1165) is fixedly installed at the bottom below the partition plate (1162). The passive gear (1165) meshes with the transmission gear (1163), and the transmission gear (1163) meshes with the driving gear (115). A mounting bracket (1166) is fixedly installed at the bottom of the air pump housing (1161). An air nozzle (1167) is fixedly sleeved at one end of the mounting bracket (1166). One end of the air nozzle (1167) is connected to the inner cavity of the air pump housing (1161) through a hose. The air pump housing (1161) has flexible hoses on both sides near the top of its outer surface, and the inner cavity of the air pump housing (1161) is connected to the air inlet I (25) through the flexible hoses.

2. A gantry vertical machining center according to claim 1, characterized in that, The axis of the mating hole (273) and the axis of the stroke hole (266) are located on the same vertical plane.

3. A gantry vertical machining center according to claim 1, characterized in that, The output of the airflow detector (24) is connected to the input of the power unit II (112) via a signal connection.

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