Vertical milling machine for cylinder cover production

Abstract

The invention relates to the technical field of milling machines, and provides a vertical milling machine for cylinder cover production, which comprises a machine body, a workbench and a spindle box, the workbench and the spindle box are both mounted on the machine body, a spindle is rotatably arranged in the spindle box through a bearing, a driving motor is mounted on the spindle box, and the vertical milling machine further comprises a cooling-water machine, a cooling pipe and a lubricating mechanism, the cooling pipe is located in the workbench and communicates with a water outlet of the cooling-water machine, the lubricating mechanism is used for lubricating and cooling the bearing and comprises an oil storage tank, a cooling pipe network, a lubricating pipe and an oil feeding assembly, the cooling pipe network is located in the oil storage tank, and the bottom of the cooling pipe network communicates with the cooling pipe; the top of the cooling pipe network communicates with a water inlet of the cooling-water machine, an outlet of the lubricating pipe is located above the bearing, and the oil feeding assembly is used for conveying lubricating oil in the oil storage tank into the lubricating pipe. By means of the technical scheme, the technical problem that in the prior art, the machining precision is reduced due to long-time machining temperature rising is solved.

Description

TECHNICAL FIELD

[0001] The embodiment of the present application relates to the technical field of milling machine, in particular to a vertical milling machine for producing cylinder cover. BACKGROUND

[0002] With the passage of time, the performance of the engine decreases, the cylinder cover can be milled by the milling machine, the cylinder cover is milled by using the rotating multi-blade cutter, the smooth plane surface is formed, the sealing performance of the cylinder cover and the cylinder body is improved, the gas leakage is reduced, thereby the compression ratio is improved, thereby the normal operation of the engine is ensured and the service life is prolonged.

[0003] The milling machine drives the cutter to rotate rapidly to precisely cut the surface of the workpiece, the high-speed friction and cutting between the cutter and the workpiece can make the temperature of the workpiece and the cutter rise rapidly to deform, the temperature of the main shaft and other parts of the milling machine can also rise after continuous machining to deform, thereby the machining precision of the milling machine is reduced, the high temperature can reduce the strength and rigidity of the cutter, especially in summer, the temperature of the workshop rises, which can cause the waste rate to rise, or the size drift occurs after the continuous machining of the finishing process, thereby the machining precision of the cylinder cover is reduced, thereby the normal operation of the engine is affected. SUMMARY

[0004] In order to overcome the above defects, the present application provides a vertical milling machine for producing cylinder cover, which is used to solve the technical problem of the reduction of machining precision caused by the temperature rise after long time machining in the prior art.

[0005] According to one aspect, at least one embodiment of the present application provides a vertical milling machine for producing cylinder cover, comprising a bed body, a workbench and a spindle box, the workbench and the spindle box are both installed on the bed body, a main shaft is rotatably arranged in the spindle box through a bearing, a driving motor for driving the main shaft to rotate is installed on the spindle box, and the vertical milling machine further comprises: A water chiller is installed on the bed body. A cooling pipe is located in the interior of the workbench, and the cooling pipe is communicated with the water outlet of the water chiller. A lubricating mechanism is used for lubricating and cooling the bearing, and the lubricating mechanism comprises: An oil storage tank is installed on the spindle box, and the interior of the oil storage tank contains lubricating oil. A cooling pipe network is located in the interior of the oil storage tank, the bottom of the cooling pipe network is communicated with the cooling pipe, and the top of the cooling pipe network is communicated with the water inlet of the water chiller. A lubricating pipe is located above the bearing. An oil feeding assembly is arranged for feeding the lubricating oil in the oil storage tank to the inside of the lubricating pipe, and the oil feeding assembly comprises: An oil feeding tank is arranged at the bottom of the oil feeding tank, and the bottom of the oil feeding tank is communicated with the bottom of the oil storage tank through an oil inlet pipe and communicated with the lubricating pipe through an oil outlet pipe, and a one-way valve is arranged on the oil inlet pipe and the oil outlet pipe; A blowing and sucking dual-purpose air pump is arranged at the top of the oil feeding tank; A driving plate is arranged in the inside of the oil feeding tank.

[0006] In order to reduce the leakage of the lubricating oil, an oil absorbing assembly is further arranged below the bearing for absorbing the excess lubricating oil, and the oil absorbing assembly comprises: A receiving groove is arranged in the inside of the spindle box, and the receiving groove is below the bearing, and the spindle is rotationally connected with the receiving groove; An oil absorbing pad is arranged in the inside of the receiving groove.

[0007] In order to ensure the absorbing effect of the oil absorbing pad, an oil discharging assembly is further arranged for discharging and collecting the excess lubricating oil in the oil absorbing pad, and the oil discharging assembly comprises: An oil discharging pipe is arranged in communication with the bottom of the receiving groove; An oil collecting tank is arranged on the spindle box, and the oil collecting tank is in communication with the outlet of the oil discharging pipe; An extrusion block is fixedly connected to the outside of the spindle, and the extrusion block is in contact with the inside of the oil absorbing pad.

[0008] In order to cool the driving motor, a heat preservation cover is fixedly arranged on the outside of the oil storage tank, the blowing and sucking dual-purpose air pump is in communication with the heat preservation cover, and a gas outlet hole is arranged on the side of the heat preservation cover facing the driving motor.

[0009] In order to improve the cooling effect on the spindle, a cooling cavity is arranged in the inside of the spindle box, a low-temperature pipe network is arranged in the inside of the cooling cavity, and the lubricating pipe is in communication with the oil outlet pipe through the low-temperature pipe network.

[0010] In order to improve the cooling effect on the workbench and the workpiece, a fan is rotatably arranged on the workbench.

[0011] In order to further improve the cooling effect on the workpiece and the tool, the heat preservation cover is in communication with a cold air pipe for blowing cold air to the tool.

[0012] The embodiment of the present application has the following beneficial effects: 1. In the present invention, cold water is transported to the inside of the cooling pipe and the temperature-reducing pipe network through the chiller, the workbench is cooled through the cooling pipe, and the workbench is air-cooled and cooled with the assistance of the fan, thereby improving the cooling effect of the workbench, and the lubricating oil in the oil storage tank is cooled through the temperature-reducing pipe network, and the air is sucked into the oil delivery tank by the blowing and suction dual-purpose air pump, which can drive the driving plate to rise and suck the lubricating oil in the oil storage tank into the inside of the oil delivery tank, and then the blowing and suction dual-purpose air pump blows air into the oil delivery tank, which can drive the driving plate to descend and send the lubricating oil in the oil delivery tank into the low-temperature pipe network and the inside of the lubrication pipe. The low-temperature pipe network cools the spindle box, and the lubricating oil drips onto the bearing through the lubrication pipe to cool and lubricate the bearing, thereby ensuring smooth rotation of the spindle and reducing thermal deformation of various components, thereby ensuring the milling accuracy of the cylinder head.

[0013] 2. In the present invention, the workbench is cooled by a cooling pipe and a fan, thereby reducing high-temperature deformation of the workpiece; air is supplied to the interior of the heat preservation cover by a blowing and sucking dual-purpose air pump; the cooling pipe network keeps the lubricating oil in the oil storage tank in a low-temperature state, thereby keeping the heat preservation cover in a low-temperature environment; the blowing and sucking dual-purpose air pump blows cold air through the air outlet to the drive motor to cool the drive motor and reduce high-temperature damage to the drive motor; cold air is blown to the tool and the workpiece through the cold air pipe to cool the tool and the workpiece, reduce high-temperature deformation of the tool and the workpiece, and ensure the cutting accuracy of the cylinder head.

[0014] 3. In the present invention, the excess lubricating oil in the bearing is absorbed by the oil-absorbing pad. At the same time, the main shaft drives the extrusion block to rotate to squeeze the oil-absorbing pad to squeeze out the excess lubricating oil inside it and send it into the oil collecting tank through the oil drain pipe for collection. The lubricating oil in the oil collecting tank can be processed regularly to ensure the adsorption effect of the oil-absorbing pad on the lubricating oil. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] To more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly describes the drawings required for describing the embodiments of the present invention. Obviously, the drawings described below are merely exemplary embodiments of the present invention. Those skilled in the art can, without inventive effort, derive other drawings based on the contents of the exemplary embodiments of the present invention and these drawings.

[0016] Figure 1 A schematic diagram of the overall structure from a first perspective of an embodiment of the present invention; Figure 2 for Figure 1 A schematic structural diagram of the overall second viewing angle in an embodiment of the present invention; Figure 3 for Figure 1 A schematic structural diagram of a chiller, cooling pipe, oil storage tank and cooling pipe network in an embodiment of the present invention; Figure 4 forFigure 1 A schematic structural diagram of an oil storage tank, a heat preservation cover, an oil delivery assembly, and an oil discharge assembly in an embodiment of the present invention; Figure 5 for Figure 1 A schematic structural diagram of the main shaft, bearings, oil suction assembly and oil discharge assembly in the embodiment; Figure 6 for Figure 2 Schematic diagram of the local enlarged structure at A in the middle; Figure 7 for Figure 4 Schematic diagram of the local enlarged structure at B in the middle; Figure 8 for Figure 4 Schematic diagram of the local enlarged structure at point B in the middle.

[0017] In the picture: 1. Bed; 2. Workbench; 3. Spindle box; 4. Spindle; 5. Drive motor; 6. Chiller; 7. Cooling pipe; 8. Fan; 9. Adjustment motor; 10. Drive rod; 11. Insulation cover; 12. Cold air pipe; 13. Low-temperature pipe network; 14. Bearing; 101. Oil storage tank; 102. Cooling pipe network; 103. Lubrication pipe; 201, oil delivery tank; 202, blowing and suction dual-purpose air pump; 203, drive plate; 204, oil inlet pipe; 205, oil outlet pipe; 206, one-way valve; 301, receiving groove; 302, oil absorption pad; 401. Oil drain pipe; 402. Oil collecting tank; 403. Extrusion block. DETAILED DESCRIPTION The present 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 only used to explain the present invention, rather than to limit the present invention.

[0018] To simplify the drawings, only portions relevant to the invention are schematically depicted in each figure; they do not represent the actual structure of the product. Furthermore, to simplify the drawings and facilitate understanding, in some figures, only one component with the same structure or function is schematically depicted or labeled. In this document, "one" not only means "only one" but also "more than one," and "several" includes "two" and "more than two."

[0019] In this document, unless otherwise indicated and limited, the terms "mount", "connect", "connection" should be understood broadly, for example, can be fixed connection, can also be detachable connection, or integrally connected; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be internal communication of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0020] In the present application, unless otherwise specified and limited, the first feature "on" or "under" the second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the first feature "on", "above" and "above" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the first feature is higher than the second feature in horizontal height. The first feature "under", "below" and "below" the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the first feature is lower than the second feature in horizontal height.

[0021] In the description of the present embodiment, the terms "up", "down", "left", "right" and other orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0022] In addition, in the description of the present application, the terms "first", "second" and the like are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0023] As Figures 1 to 8 shown, it shows a vertical milling machine for producing a cylinder head in an embodiment of the present application, which comprises a bed body 1, a workbench 2 and a spindle box 3, the workbench 2 and the spindle box 3 are both installed on the bed body 1, the inside of the spindle box 3 is rotatably provided with a main shaft 4 through a bearing 14, the spindle box 3 is installed with a driving motor 5 for driving the main shaft 4 to rotate, and further comprises a water cooler 6, a cooling pipe 7 and a lubricating mechanism, the driving motor 5 drives the main shaft 4 to rotate through a transmission assembly, and the rotation stability of the main shaft 4 is ensured through the bearing 14.

[0024] As Figures 1 to 6As shown, the water chiller 6 is installed on the bed body 1, the cooling pipe 7 is located in the inside of the workbench 2, the cooling pipe 7 and the water outlet of the water chiller 6 are communicated, the water chiller 6 can produce cold water and deliver the cold water to the inside of the cooling pipe 7, the cooling pipe 7 is located in the inside of the workbench 2 in a bending shape, prolongs the residence time of the cold water in the cooling pipe 7, guarantees the cooling effect of the workbench 2, the workpiece is clamped on the workbench 2, the workbench 2 is used to cool the workpiece, reduces the deformation caused by the temperature rise in the milling process of the workpiece, in order to improve the cooling effect of the workbench 2 and the workpiece, the fan 8 is rotatably installed on the workbench 2, the adjusting motor 9 is installed on the workbench 2, the output end of the adjusting motor 9 is fixedly connected with the driving rod 10, the fan 8 is installed on the driving rod 10, the driving rod 10 can be driven to rotate by the adjusting motor 9, so as to drive the fan 8 to rotate, the blowing position of the fan 8 is adjusted, the blowing range of the fan 8 is expanded, and the air cooling effect of the workbench 2 and the workpiece is improved.

[0025] As Figures 1 to 8As shown, the lubricating mechanism is used for lubricating and cooling the bearing 14, and comprises an oil tank 101, a cooling pipe network 102, a lubricating pipe 103 and an oil feeding assembly. The oil tank 101 is installed on the spindle box 3, and the inside of the oil tank 101 contains lubricating oil. The top of the oil tank 101 is communicated with a filling pipe with a screw cap, and the inside of the oil tank 101 can be regularly added with lubricating oil. The cooling pipe network 102 is located in the inside of the oil tank 101. The bottom of the cooling pipe network 102 is communicated with the cooling pipe 7, and the top of the cooling pipe network 102 is communicated with the water inlet of the water chiller 6. The cooling pipe 7 and the water chiller 6, the cooling pipe network 102 and the cooling pipe 7, and the cooling pipe network 102 and the water chiller 6 are all communicated through the flexible hoses, so as to adapt to the lifting and movement of the workbench 2 and the spindle box 3. The outlet of the lubricating pipe 103 is located above the bearing 14. The oil feeding assembly is used for feeding the lubricating oil in the oil tank 101 into the inside of the lubricating pipe 103. The oil feeding assembly comprises an oil feeding tank 201, a blowing and sucking air pump 202 and a driving plate 203. The bottom of the oil feeding tank 201 is communicated with the bottom of the oil tank 101 through an oil inlet pipe 204, and the bottom of the oil feeding tank 201 is communicated with the lubricating pipe 103 through an oil outlet pipe 205. The oil inlet pipe 204 and the oil outlet pipe 205 are both provided with a one-way valve 206. The blowing and sucking air pump 202 is communicated with the top of the oil feeding tank 201. The driving plate 203 is sealingly and slidably installed in the inside of the oil feeding tank 201. The blowing and sucking air pump 202 sucks air into the inside of the oil feeding tank 201, the air pressure above the driving plate 203 is reduced, the driving plate 203 moves upward, the air pressure below the driving plate 203 is reduced, the lubricating oil in the oil tank 101 is sucked into the inside of the oil feeding tank 201 through the oil inlet pipe 204, then the blowing and sucking air pump 202 blows air into the inside of the oil feeding tank 201, the air pressure above the driving plate 203 is increased, the driving plate 203 moves downward, the lubricating oil in the oil feeding tank 201 is fed into the inside of the lubricating pipe 103 through the oil outlet pipe 205 and dripped into the inside of the bearing 14 to lubricate the bearing 14. At the same time, the lubricating oil is in a low-temperature state under the action of the cold water in the cooling pipe network 102, so as to cool the bearing 14 and the spindle 4, reduce the deformation of the bearing 14 and the spindle 4, ensure the smooth rotation of the spindle 4, ensure the precision machining of the cutter, and avoid the backflow of the lubricating oil under the action of the one-way valve 206.

[0026] As Figures 1 to 7As shown, in order to reduce the leakage of lubricating oil, the oil absorption assembly is arranged below the bearing 14 for absorbing the excess lubricating oil, the oil absorption assembly comprises a receiving groove 301 and an oil absorption pad 302, the receiving groove 301 is installed in the interior of the spindle box 3, the receiving groove 301 is located below the bearing 14, the spindle 4 and the receiving groove 301 are rotationally connected, the oil absorption pad 302 is placed in the interior of the receiving groove 301, the excess lubricating oil in the bearing 14 drops into the interior of the oil absorption pad 302 under the action of gravity, the oil absorption pad 302 absorbs the lubricating oil, so that the lubricating oil is in the interior of the receiving groove 301, the overflow of the lubricating oil is reduced, the processing environment is ensured to be clean, and the pollution to the spindle 4 and the workpiece is reduced.

[0027] In order to ensure the absorption effect of the oil absorption pad 302, the oil discharge assembly is further arranged, the oil discharge assembly is used for discharging and collecting the excess lubricating oil in the oil absorption pad 302, the oil discharge assembly comprises an oil discharge pipe 401, an oil collecting tank 402 and an extrusion block 403, the oil discharge pipe 401 is communicated with the bottom of the receiving groove 301, the oil collecting tank 402 is installed on the spindle box 3, the oil collecting tank 402 is communicated with the outlet of the oil discharge pipe 401, the extrusion block 403 is fixedly connected to the exterior of the spindle 4, the extrusion block 403 is in contact with the interior side of the oil absorption pad 302, with the rotation of the spindle 4, the extrusion block 403 extrudes the oil absorption pad 302, so that the excess lubricating oil in the oil absorption pad 302 is extruded and sent into the interior of the oil collecting tank 402 through the oil discharge pipe 401 for collection, the bottom of the oil collecting tank 402 is communicated with a discharge pipe with a valve, the lubricating oil in the oil collecting tank 402 is discharged regularly for subsequent treatment, the oil discharge pipe 401 is arranged in an inclined manner and the outlet thereof is on the side with a lower height, so that the lubricating oil can flow into the interior of the oil collecting tank 402.

[0028] As shown in the drawings, Figures 1 to 4 In order to cool the driving motor 5, the heat preservation cover 11 is fixedly arranged on the exterior of the oil tank 101, the blowing and suction dual-purpose air pump 202 is communicated with the heat preservation cover 11, the side of the heat preservation cover 11 facing the driving motor 5 is provided with an air outlet hole, the heat preservation cover 11 can reduce the escape of cold air at the oil tank 101, air is sent into the interior of the heat preservation cover 11 through the blowing and suction dual-purpose air pump 202, the cold air in the heat preservation cover 11 is blown to the driving motor 5 through the air outlet hole, the driving motor 5 and the spindle box 3 are cooled, the thermal damage of the driving motor 5 is reduced, and the service life of the equipment is prolonged, in order to further improve the cooling effect of the workpiece and the tool, the heat preservation cover 11 is communicated with the cold air pipe 12 for blowing cold air to the tool, part of the cold air in the heat preservation cover 11 is blown to the tool and the workpiece through the cold air pipe 12, and the cold air pipe 12 moves with the tool, so that the tool and the workpiece can be cooled in real time, the temperature rise of the tool after long-time cutting work is reduced, and the service life and machining precision of the tool are ensured.

[0029] As shown in the drawings, Figures 1 to 7As shown, in order to improve the cooling effect on the main shaft 4, a cooling cavity is formed in the interior of the main shaft box 3, a low-temperature pipe network 13 is arranged in the interior of the cooling cavity, the lubricating pipe 103 is communicated with the oil outlet pipe 205 through the low-temperature pipe network 13, and the low-temperature lubricating oil delivered by the oil delivery tank 201 first enters the interior of the low-temperature pipe network 13, the main shaft box 3 is then cooled by the low-temperature lubricating oil, and then the lubricating oil enters the interior of the lubricating pipe 103 to lubricate the bearing 14.

[0030] The working principle or use process of the cylinder head production vertical milling machine is as follows: The workpiece is clamped on the workbench 2, the main shaft 4 and the cutter are rotated by the driving motor 5 to mill the workpiece, and in the process of machining, the water chiller 6 delivers cold water to the cooling pipe 7 and the interior of the cooling pipe network 102, the cooling pipe 7 cools the workbench 2, thereby cooling the workpiece on the workbench 2, and the fan 8 assists in air cooling the workbench 2 to improve the cooling effect on the workbench 2. The cooling pipe network 102 cools the lubricating oil in the oil storage tank 101, the air suction and blowing dual-purpose air pump 202 is regularly used to suck air into the oil delivery tank 201 to drive the driving plate 203 to ascend, the lubricating oil in the oil storage tank 101 is sucked into the interior of the oil delivery tank 201, then the air suction and blowing dual-purpose air pump 202 is used to blow air into the oil delivery tank 201 to drive the driving plate 203 to descend, the lubricating oil in the oil delivery tank 201 is delivered into the interior of the low-temperature pipe network 13 and the lubricating pipe 103, the low-temperature pipe network 13 cools the main shaft box 3, and the lubricating oil drops on the bearing 14 through the lubricating pipe 103 to cool and lubricate the bearing 14, thereby ensuring smooth rotation of the main shaft 4. The oil absorption pad 302 absorbs the excess lubricating oil in the bearing 14, at the same time, the main shaft 4 drives the extrusion block 403 to rotate, the extrusion block 403 extrudes the oil absorption pad 302, and the excess lubricating oil in the oil absorption pad 302 is extruded out and delivered into the interior of the oil collection tank 402 through the oil discharge pipe 401 for collection. At the same time that one port of the air suction and blowing dual-purpose air pump 202 sucks air into the interior of the oil delivery tank 201, the other port of the air suction and blowing dual-purpose air pump 202 blows air into the interior of the heat preservation cover 11, thereby blowing the cold air in the heat preservation cover 11 to the driving motor 5 and the cutter to air cool the driving motor 5, the cutter and the workpiece.

[0031] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present application and not limit the present application, although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or replaced equivalently without departing from the spirit and scope of the technical solutions of the present application, and all of them should be covered in the scope of the claims of the present application.

Claims

1. A vertical milling machine for producing cylinder heads, comprising a bed (1), a workbench (2) and a spindle box (3), wherein the workbench (2) and the spindle box (3) are both mounted on the bed (1), a spindle (4) is rotatably arranged inside the spindle box (3) via a bearing (14), and a drive motor (5) for driving the spindle (4) to rotate is mounted on the spindle box (3), characterized in that: Also includes: A water chiller (6), the water chiller (6) being installed on the bed (1); A cooling pipe (7), the cooling pipe (7) is located inside the workbench (2), and the cooling pipe (7) is connected to the water outlet of the chiller (6); A lubricating mechanism, the lubricating mechanism is used to lubricate and cool the bearing (14), and the lubricating mechanism includes: An oil storage tank (101), the oil storage tank (101) being mounted on the spindle box (3), and the interior of the oil storage tank (101) containing lubricating oil; A cooling pipe network (102), the cooling pipe network (102) is located inside the oil storage tank (101), the bottom of the cooling pipe network (102) is connected to the cooling pipe (7), and the top of the cooling pipe network (102) is connected to the water inlet of the chiller (6); a lubrication pipe (103), wherein the outlet of the lubrication pipe (103) is located above the bearing (14); An oil delivery assembly is used to deliver the lubricating oil in the oil storage tank (101) to the interior of the lubrication pipe (103).

2. A vertical milling machine for cylinder head production according to claim 1, characterized in that: The oil delivery assembly comprises: An oil delivery tank (201), wherein the bottom of the oil delivery tank (201) is connected to the bottom of the oil storage tank (101) via an oil inlet pipe (204), and the bottom of the oil delivery tank (201) is connected to the lubrication pipe (103) via an oil outlet pipe (205), and a one-way valve (206) is installed on each of the oil inlet pipe (204) and the oil outlet pipe (205); a blowing and sucking dual-purpose air pump (202), the blowing and sucking dual-purpose air pump (202) being in communication with the top of the oil delivery tank (201); A driving plate (203) is sealingly and slidably mounted inside the oil delivery tank (201).

3. A vertical milling machine for cylinder head production according to claim 2, characterized in that: It also includes an oil suction component, which is arranged below the bearing (14) and is used to absorb excess lubricating oil.

4. A vertical milling machine for cylinder head production according to claim 3, characterized in that: The oil absorption assembly comprises: A receiving groove (301), the receiving groove (301) is installed inside the main shaft box (3), the receiving groove (301) is located below the bearing (14), and the main shaft (4) and the receiving groove (301) are rotatably connected; An oil absorbing pad (302) is placed inside the receiving groove (301).

5. A vertical milling machine for cylinder head production according to claim 4, characterized in that: It also includes an oil drain assembly, which is used to drain and collect excess lubricating oil in the oil-absorbing pad (302).

6. A vertical milling machine for cylinder head production according to claim 5, characterized in that: The oil drain assembly comprises: An oil drain pipe (401), the oil drain pipe (401) is connected to the bottom of the receiving groove (301); An oil collecting tank (402), the oil collecting tank (402) being mounted on the spindle box (3), the oil collecting tank (402) being in communication with the outlet of the oil drain pipe (401); An extrusion block (403) is fixedly connected to the outside of the main shaft (4), and the extrusion block (403) is in contact with the inner side of the oil absorption pad (302).

7. A vertical milling machine for cylinder head production according to claim 6, characterized in that: The oil storage tank (101) is fixedly sleeved with a heat-insulating cover (11) on its exterior, the blowing and suction dual-purpose air pump (202) is in communication with the heat-insulating cover (11), and an air outlet is provided on a side of the heat-insulating cover (11) facing the drive motor (5).

8. A vertical milling machine for cylinder head production according to claim 7, characterized in that: A cooling chamber is provided inside the spindle box (3), a low-temperature pipe network (13) is provided inside the cooling chamber, and the lubrication pipe (103) is connected to the oil outlet pipe (205) through the low-temperature pipe network (13).

9. A vertical milling machine for cylinder head production according to claim 8, characterized in that: A fan (8) is rotatably mounted on the workbench (2).

10. A vertical milling machine for cylinder head production according to claim 9, characterized in that: The heat-insulating cover (11) is connected to a cold air pipe (12) for blowing cold air toward the tool.

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